/* Educational Platform - Mobile-first, user-friendly design (bgtestove.com) */

:root {
  --color-primary: #3B5BDB;
  --color-primary-hover: #2f4bc4;
  --color-primary-light: #e8ecfc;
  --color-secondary: #4DABF7;
  --color-accent: #FF922B;
  --color-accent-hover: #fd7e14;
  --color-success: #059669;
  --color-warning: #d97706;
  --color-error: #dc2626;
  --color-text: #212529;
  --color-text-muted: #6b7280;
  --color-bg: #ffffff;
  --color-bg-alt: #F8F9FA;
  --color-border: #e5e7eb;
  --font-sans: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-heading: "Poppins", var(--font-sans);
  --font-mono: ui-monospace, "Cascadia Code", "Source Code Pro", monospace;
  --radius: 0.5rem;
  --radius-lg: 0.75rem;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --touch-min: 44px;
  --container-max: 75rem;
  --section-padding: 5rem;
  --card-padding: 1.5rem;
  --header-height: 3.5rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg-alt);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  max-width: 1200px;
  margin: 0 auto;
}

.site-logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-primary);
  text-decoration: none;
}

.nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--touch-min);
  height: var(--touch-min);
  padding: 0;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
  color: var(--color-text);
}

.nav-toggle:hover {
  background: var(--color-bg-alt);
}

.nav-toggle[aria-expanded="true"] .icon-menu { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: block; }
.nav-toggle .icon-close { display: none; }

.site-nav {
  display: none;
  width: 100%;
  flex-basis: 100%;
}

.site-nav.is-open {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-top: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--color-border);
}

.site-nav a {
  display: block;
  padding: 0.75rem 1rem;
  color: var(--color-text);
  text-decoration: none;
  border-radius: var(--radius);
  min-height: var(--touch-min);
  display: flex;
  align-items: center;
}

.site-nav a:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.nav-item-has-children {
  position: relative;
}
.nav-children {
  list-style: none;
  margin: 0;
  padding: 0.5rem 0;
}
.nav-children li {
  margin: 0;
  position: relative;
}
.nav-children a {
  padding: 0.5rem 1rem;
  display: block;
}
@media (min-width: 992px) {
  .nav-children {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 180px;
    background: var(--color-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.15s, visibility 0.15s;
  }
  .nav-item-has-children:hover > .nav-children {
    opacity: 1;
    visibility: visible;
  }
  /* Подменюта (Класове под Предмет) – вдясно от родителя при hover върху Български */
  .nav-children .nav-children {
    top: 0;
    left: 100%;
    margin-left: -2px;
    transition: opacity 0.15s 0.12s, visibility 0.15s 0.12s;
  }
  .nav-children li:hover > .nav-children {
    opacity: 1;
    visibility: visible;
    transition-delay: 0s;
  }
}

.locale-switcher {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.5rem 0;
}

.locale-switcher a {
  padding: 0.5rem 0.75rem;
  color: var(--color-text-muted);
  text-decoration: none;
  border-radius: var(--radius);
  font-size: 0.875rem;
}

.locale-switcher a:hover,
.locale-switcher strong {
  color: var(--color-primary);
}

/* Account dropdown */
.nav-account-dropdown {
  position: relative;
}

.nav-account-trigger {
  display: flex;
  align-items: center;
  padding: 0.75rem 1rem;
  min-height: var(--touch-min);
  background: none;
  border: none;
  border-radius: var(--radius);
  font: inherit;
  color: var(--color-text);
  cursor: pointer;
  text-decoration: none;
}

.nav-account-trigger:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.nav-account-panel {
  display: none;
  flex-direction: column;
  gap: 0;
  position: absolute;
  top: 100%;
  right: 0;
  min-width: 10rem;
  margin-top: 0.25rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.nav-account-dropdown.is-open .nav-account-panel {
  display: flex;
}

.nav-account-panel a {
  display: block;
  padding: 0.75rem 1rem;
  color: var(--color-text);
  text-decoration: none;
  white-space: nowrap;
}

.nav-account-panel a:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

/* Mobile: dropdown panel as block under trigger */
@media (max-width: 767px) {
  .site-nav.is-open .nav-account-panel {
    position: static;
    margin-top: 0;
    margin-left: 0.5rem;
    border: none;
    box-shadow: none;
    border-left: 2px solid var(--color-border);
    min-width: auto;
  }
}

/* Layout system */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.section {
  padding: var(--section-padding) 0;
}

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1rem;
}

.col-1 { grid-column: span 1; }
.col-2 { grid-column: span 2; }
.col-3 { grid-column: span 3; }
.col-4 { grid-column: span 4; }
.col-5 { grid-column: span 5; }
.col-6 { grid-column: span 6; }
.col-7 { grid-column: span 7; }
.col-8 { grid-column: span 8; }
.col-9 { grid-column: span 9; }
.col-10 { grid-column: span 10; }
.col-11 { grid-column: span 11; }
.col-12 { grid-column: span 12; }

@media (max-width: 767px) {
  .grid-12 .col-1, .grid-12 .col-2, .grid-12 .col-3, .grid-12 .col-4,
  .grid-12 .col-5, .grid-12 .col-6, .grid-12 .col-7, .grid-12 .col-8,
  .grid-12 .col-9, .grid-12 .col-10, .grid-12 .col-11, .grid-12 .col-12 {
    grid-column: span 12;
  }
}

/* Main content */
main {
  flex: 1;
  padding: 1.5rem 1rem;
  max-width: var(--container-max);
  margin: 0 auto;
  width: 100%;
}

.page-header {
  margin-bottom: 1.5rem;
}

.page-header h1 {
  margin: 0 0 0.25rem;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-text);
}

.test-meta-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.test-meta-bar span:not(:last-child)::after {
  content: "·";
  margin-left: 0.5rem;
  opacity: 0.7;
}

/* Result page */
.result-page {
  max-width: 42rem;
  margin: 0 auto;
  padding-bottom: 3rem;
}

.result-page .page-header {
  margin-bottom: 1.5rem;
}

.result-card {
  text-align: center;
  padding: 2rem 1.5rem;
  box-shadow: var(--shadow-md);
  border-radius: 1rem;
  position: relative;
  overflow: hidden;
}

.result-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
}

.result-card-header {
  margin-bottom: 1.5rem;
}

.result-test-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
}

.result-grade-block {
  margin: 1.5rem 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.result-grade-figure {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.result-grade-image {
  color: inherit;
  max-width: 7rem;
  height: auto;
}

.result-grade-block--otlichen .result-grade-figure { color: #059669; }
.result-grade-block--mn-dobr .result-grade-figure { color: #2563eb; }
.result-grade-block--dobr .result-grade-figure { color: var(--color-primary); }
.result-grade-block--sreden .result-grade-figure { color: #d97706; }
.result-grade-block--slab .result-grade-figure { color: #dc2626; }

.result-grade-tagline {
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  margin: 0;
  font-style: italic;
  opacity: 0.95;
}

.result-grade {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-lg);
  display: inline-block;
}

.result-grade--otlichen {
  color: #059669;
  background: rgba(5, 150, 105, 0.12);
}

.result-grade--mn-dobr {
  color: #2563eb;
  background: rgba(37, 99, 235, 0.12);
}

.result-grade--dobr {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.result-grade--sreden {
  color: #d97706;
  background: rgba(217, 119, 6, 0.12);
}

.result-grade--slab {
  color: #dc2626;
  background: rgba(220, 38, 38, 0.1);
}

.result-points-badge {
  display: inline-flex;
  align-items: baseline;
  gap: 0.25rem;
  padding: 0.5rem 1rem;
  background: var(--color-bg-alt);
  border-radius: var(--radius);
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.result-points-value {
  font-weight: 600;
  color: var(--color-text);
}

.result-points-sep {
  opacity: 0.6;
}

.result-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.result-actions-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

/* Result breakdown section */
.result-breakdown-section {
  margin-top: 2.5rem;
}

.result-breakdown-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--color-border);
}

.result-questions-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.result-question-card {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1.25rem;
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-lg);
  transition: box-shadow 0.2s ease;
}

.result-question-card:hover {
  box-shadow: var(--shadow-md);
}

.result-question-main {
  display: flex;
  gap: 1rem;
  flex: 1;
  min-width: 0;
}

.result-question-number {
  flex-shrink: 0;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  background: var(--color-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.875rem;
}

.result-question-incorrect .result-question-number {
  background: #dc2626;
}

.result-question-content {
  flex: 1;
  min-width: 0;
}

.result-question-prompt {
  margin: 0 0 0.75rem;
  font-size: 1rem;
  line-height: 1.6;
}

.prompt-first-line {
  font-weight: 600;
}

.prompt-line {
  font-weight: normal;
  color: var(--color-text);
}

.result-answers {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.result-answer-row {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  font-size: 0.9375rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius);
  background: var(--color-bg-alt);
}

.result-answer-icon {
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.75rem;
}

.result-answer-student .result-answer-icon {
  background: #16a34a;
  color: white;
}

.result-answer-wrong .result-answer-icon {
  background: #dc2626;
  color: white;
}

.result-answer-correct .result-answer-icon {
  background: #16a34a;
  color: white;
}

.result-answer-text {
  flex: 1;
  line-height: 1.4;
}

.result-answer-student {
  color: #15803d;
}

.result-answer-wrong {
  color: #b91c1c;
  background: rgba(220, 38, 38, 0.06);
}

.result-answer-correct {
  color: #15803d;
}

.result-question-score {
  flex-shrink: 0;
  text-align: right;
}

.result-question-points {
  display: inline-block;
  padding: 0.5rem 0.875rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.875rem;
  border: 1px solid #dc2626;
  color: #dc2626;
  background: rgba(220, 38, 38, 0.06);
}

.result-question-correct .result-question-points {
  border-color: #16a34a;
  color: #16a34a;
  background: rgba(5, 150, 105, 0.08);
}

/* Flash messages */
.flash-messages {
  margin: 0;
  padding: 1rem;
  max-width: 75rem;
  margin-left: auto;
  margin-right: auto;
}

.flash-message {
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  margin-bottom: 0.5rem;
  border-left: 4px solid;
}

.flash-message.success { background: #ecfdf5; border-color: var(--color-success); color: #065f46; }
.flash-message.error { background: #fef2f2; border-color: var(--color-error); color: #991b1b; }
.flash-message.notice { background: var(--color-primary-light); border-color: var(--color-primary); color: var(--color-primary-hover); }

/* Cards */
.card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: var(--card-padding);
  margin-bottom: 1rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border);
}

.card-grid {
  display: grid;
  gap: 1rem;
}

.text-muted {
  color: var(--color-text-muted);
  font-style: italic;
}

.taxonomy-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.taxonomy-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-border);
  gap: 0.75rem;
}

.taxonomy-list li:last-child {
  border-bottom: none;
}

.taxonomy-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.taxonomy-form {
  margin-bottom: 0;
}

/* Forms */
.form-group {
  margin-bottom: 1.25rem;
}

.form-group label,
form label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.375rem;
  color: var(--color-text);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="number"],
.form-group input:not([type]),
.form-group select,
.form-group textarea,
form input[type="text"],
form input[type="email"],
form input[type="password"],
form input[type="number"],
form input:not([type]),
form select,
form textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-family: inherit;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  min-height: var(--touch-min);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus,
form input:focus,
form select:focus,
form textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

form .form-row,
form > div {
  margin-bottom: 1.25rem;
}

form .invalid-feedback {
  font-size: 0.875rem;
  color: var(--color-error);
  margin-top: 0.25rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--touch-min);
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 500;
  font-family: inherit;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, color 0.15s, transform 0.15s;
}

@media (prefers-reduced-motion: reduce) {
  .btn,
  .subject-card,
  .category-card,
  .sample-test-card,
  .site-nav a {
    transition: none;
  }

  .btn-primary:hover,
  .btn-secondary:hover,
  .btn-cta:hover {
    transform: none;
  }

  .subject-card:hover,
  .category-card:hover,
  .sample-test-card:hover {
    transform: none;
  }
}

.btn-primary {
  background: var(--color-primary);
  color: white;
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--color-bg-alt);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-border);
  transform: translateY(-1px);
}

.btn-block {
  width: 100%;
}

.btn-sm {
  min-height: auto;
  padding: 0.375rem 0.75rem;
  font-size: 0.875rem;
}

.btn-cta {
  background: var(--color-accent);
  color: white;
}

.btn-cta:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
}

/* Test / Question cards */
.question-card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  margin-bottom: 1.25rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow);
}

.question-card p {
  margin: 0 0 1rem;
  font-weight: 500;
}

.question-card--fill-blank .fill-blank-prompt {
  line-height: 2.2;
}

.question-card--fill-blank .fill-blank-inline,
.question-card--fill-blank .fill-blank-prompt input.fill-blank-input {
  display: inline-block;
  width: 2.25em;
  min-width: 2.25em;
  max-width: 2.25em;
  padding: 0.25rem 0.2rem;
  margin: 0 0.15em;
  font-size: inherit;
  font-family: inherit;
  text-align: center;
  vertical-align: baseline;
  box-sizing: border-box;
}

.question-card--fill-blank .fill-blank-input {
  width: 2.25em;
  min-width: 2.25em;
  max-width: 2.25em;
}

.question-card--fill-blank .form-group .fill-blank-input {
  width: 4em;
  min-width: 4em;
  max-width: 8em;
  display: inline-block;
}

/* Test taking layout */
.test-taking-wrapper {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1rem 2rem;
}

.test-header {
  background: var(--color-primary);
  color: #fff;
  padding: 1rem 1.25rem;
  margin: -1.5rem -1rem 0;
}

.test-header-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.test-header-info {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.test-header-icon {
  font-size: 1.5rem;
  opacity: 0.9;
}

.test-header-text {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.test-header-subject {
  font-size: 0.9rem;
  opacity: 0.95;
}

.test-header-title {
  font-size: 1.1rem;
  font-weight: 600;
}

.test-header-exit {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.4);
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  text-decoration: none;
}

.test-header-exit:hover {
  background: rgba(255, 255, 255, 0.3);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.5);
}

.test-progress-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1rem;
  background: #e2e8f0;
  border-bottom: 1px solid var(--color-border);
  margin: 0 -1rem;
  flex-wrap: wrap;
}

.test-progress-left {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--color-text);
}

.test-timer-icon {
  font-size: 1.1rem;
  opacity: 0.8;
}

.test-progress-right {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  align-items: flex-end;
}

.test-question-dots {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.test-question-dot {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  border: 2px solid #94a3b8;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: default;
  background: #fff;
  position: relative;
}

.test-question-dot.is-active {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
  cursor: pointer;
}

.test-question-dot.is-active .test-question-dot-icon--active {
  display: inline;
}

.test-question-dot.is-active .test-question-dot-num,
.test-question-dot.is-active .test-question-dot-icon--locked {
  display: none;
}

.test-question-dot.is-completed {
  border-color: var(--color-success);
  background: #d1fae5;
  cursor: default;
}

.test-question-dot.is-completed .test-question-dot-icon--done {
  display: inline;
  font-size: 0.9rem;
}

.test-question-dot.is-completed .test-question-dot-num,
.test-question-dot.is-completed .test-question-dot-icon--active,
.test-question-dot.is-completed .test-question-dot-icon--locked {
  display: none;
}

.test-question-dot.is-locked {
  background: #f1f5f9;
  color: #94a3b8;
}

.test-question-dot.is-locked .test-question-dot-icon--locked {
  display: inline;
  font-size: 0.7rem;
}

.test-question-dot.is-locked .test-question-dot-num,
.test-question-dot.is-locked .test-question-dot-icon--active {
  display: none;
}

.test-question-dot.is-inactive {
  background: #f1f5f9;
  color: #64748b;
  cursor: pointer;
}

.test-question-dot.is-inactive:hover {
  background: #e2e8f0;
  border-color: #94a3b8;
}

.test-question-dot.is-inactive .test-question-dot-num {
  display: inline;
}

.test-question-dot.is-inactive .test-question-dot-icon--locked,
.test-question-dot.is-inactive .test-question-dot-icon--active,
.test-question-dot.is-inactive .test-question-dot-icon--done {
  display: none;
}

.test-question-dot.is-answered {
  border-color: var(--color-success);
  background: #d1fae5;
  color: var(--color-success);
  cursor: pointer;
}

.test-question-dot.is-answered .test-question-dot-num {
  display: inline;
}

.test-question-dot.is-answered .test-question-dot-icon--locked,
.test-question-dot.is-answered .test-question-dot-icon--active,
.test-question-dot.is-answered .test-question-dot-icon--done {
  display: none;
}

.test-question-dot-icon {
  display: none;
}

.question-step.is-hidden {
  display: none !important;
}

.test-actions {
  margin-top: 1.5rem;
}

.test-next-wrap {
  position: relative;
}

.test-next-wrap .test-next-tooltip {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  padding: 0.5rem 1rem;
  background: #1e3a5f;
  color: #fff;
  font-size: 0.875rem;
  border-radius: var(--radius);
  max-width: 20rem;
  white-space: normal;
  text-align: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.15s, visibility 0.15s;
  pointer-events: none;
}

.test-next-wrap .test-next-tooltip::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-top-color: #1e3a5f;
}

.test-next-wrap.is-disabled:hover .test-next-tooltip {
  opacity: 1;
  visibility: visible;
}

.test-next-wrap.is-disabled .btn {
  background: #94a3b8;
  color: #64748b;
  cursor: not-allowed;
}

.test-actions .is-hidden {
  display: none !important;
}

.form-hint {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.question-type-section {
  margin-bottom: 1rem;
}

.per-blank-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.per-blank-row label {
  min-width: 5rem;
  margin: 0;
}

.mc-answer-mode-toggle {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.mc-answer-mode-label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.toggle-switch {
  position: relative;
  display: inline-block;
  width: 2.75rem;
  height: 1.5rem;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-border);
  border-radius: 1.5rem;
  transition: 0.2s;
}

.toggle-slider::before {
  position: absolute;
  content: "";
  height: 1.125rem;
  width: 1.125rem;
  left: 0.25rem;
  bottom: 0.1875rem;
  background: white;
  border-radius: 50%;
  transition: 0.2s;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.toggle-switch input:checked + .toggle-slider {
  background: var(--color-primary);
}

.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(1.25rem);
}

.mc-choices-list {
  margin-bottom: 0.5rem;
}

.mc-choice-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.mc-choice-row .mc-choice-radio {
  flex-shrink: 0;
}

.mc-choice-row .mc-choice-input {
  flex: 1;
  min-width: 0;
}

.mc-choice-row:has(.mc-choice-radio:checked) .mc-choice-input,
.mc-choice-row:has(.mc-choice-checkbox:checked) .mc-choice-input {
  background: #dcfce7;
  border-color: #22c55e;
}

.mc-choice-row .mc-choice-remove {
  flex-shrink: 0;
  padding: 0.25rem 0.5rem;
}

/* Match pairs (admin - like multiple choice) */
.match-pairs-list {
  margin-bottom: 0.5rem;
}

.match-pair-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.match-pair-row .match-pair-left,
.match-pair-row .match-pair-right {
  flex: 1;
  min-width: 0;
}

.match-pair-row .match-pair-arrow {
  flex-shrink: 0;
  color: var(--color-text-muted);
  font-size: 1.25rem;
}

.match-pair-row .match-pair-remove {
  flex-shrink: 0;
  padding: 0.25rem 0.5rem;
}

/* Match question (one-to-one) - card layout like image */
.match-question .match-prompt {
  margin-bottom: 1rem;
}

.match-top-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  margin-bottom: 1rem;
}

.match-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.match-term {
  font-weight: 600;
  font-size: 1rem;
  text-align: center;
}

.match-drop-zone {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  background: var(--color-bg-alt);
}

.match-drop-placeholder {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  text-align: center;
}

.match-drop-content {
  font-size: 0.875rem;
  text-align: center;
  cursor: pointer;
}

.match-bottom-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
}

.match-option-card {
  padding: 1rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  text-align: center;
  box-shadow: var(--shadow);
  cursor: grab;
  user-select: none;
}

.match-option-card:active {
  cursor: grabbing;
}

.match-option-card.match-dragging {
  opacity: 0.5;
}

.match-drop-zone.match-drag-over {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

/* Legacy match-row (kept for compatibility) */
.match-row {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

@media (min-width: 600px) {
  .match-top-row,
  .match-bottom-row {
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  }
}

/* Sentence parts (Части на изречението) */
.sp-prompt {
  margin-bottom: 1rem;
}

.sp-sentence-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  align-items: flex-end;
  margin-bottom: 1.5rem;
}

.sp-word-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.sp-word {
  font-weight: 600;
  font-size: 1rem;
}

.sp-drop-zone {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 5rem;
  min-height: 2.75rem;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius);
  padding: 0.5rem;
  background: var(--color-bg-alt);
}

.sp-drop-spacer {
  min-width: 5rem;
  min-height: 2.75rem;
  padding: 0.5rem;
}

.sp-drop-placeholder {
  color: var(--color-text-muted);
  font-size: 0.75rem;
  text-align: center;
}

.sp-drop-content {
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.sp-drop-content img {
  max-width: 32px;
  max-height: 32px;
}

.sp-images-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.sp-image-card {
  padding: 0.5rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  cursor: grab;
  user-select: none;
}

.sp-image-card:active {
  cursor: grabbing;
}

.sp-image-card.sp-dragging {
  opacity: 0.5;
}

.sp-drop-zone.sp-drag-over {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

/* Admin: sentence parts word mapping */
.sp-words-list {
  margin-bottom: 0.5rem;
}

.sp-word-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.sp-word-row .sp-word-label {
  min-width: 6rem;
  font-weight: 500;
}

.sp-word-row .sp-word-select {
  min-width: 10rem;
}

.fill-blank-per-answer {
  width: 3rem;
  max-width: 5rem;
  padding: 0.375rem 0.5rem;
  text-align: center;
}

.option-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.option-list li {
  margin-bottom: 0.5rem;
}

.option-list label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
  min-height: var(--touch-min);
  background: var(--color-bg);
}

.option-list label:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.option-list input[type="radio"] {
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
}

.option-list input[type="text"] {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

/* Test filters */
.test-filters {
  margin-bottom: 1.5rem;
}

.test-filter-group {
  margin-bottom: 1rem;
}

.test-filter-group:last-child {
  margin-bottom: 0;
}

.test-filter-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.test-filter-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.test-filter-pill {
  display: inline-block;
  padding: 0.4rem 1rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid #14b8a6;
  color: #14b8a6;
  background: #ffffff;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.test-filter-pill:hover {
  background: #f0fdfa;
}

.test-filter-pill.is-active {
  background: #14b8a6;
  color: #ffffff;
  border-color: #14b8a6;
}

.test-filter-pill.is-active:hover {
  background: #0d9488;
  border-color: #0d9488;
}

/* Test list - card grid */
.test-cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: .9rem;
  padding: 0;
  margin: 0;
}

@media (max-width: 1024px) {
  .test-cards-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .test-cards-grid { grid-template-columns: 1fr; }
}

.test-card {
  display: block;
  padding: 1rem;
  border: 1px solid #ccc;
  border-radius: 15px;
  background: linear-gradient(to right, #b2f0f0, #ffffff);
  color: var(--color-text);
  text-decoration: none;
  position: relative;
  overflow: hidden;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.test-card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 120px;
  height: 100%;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='rgba(0,0,0,0.04)' stroke-width='1'%3E%3Cpath d='M4 19.5A2.5 2.5 0 0 1 6.5 17H20'/%3E%3Cpath d='M6.5 2H20v20H6.5A2.5 2.5 0 0 1 4 19.5v-15A2.5 2.5 0 0 1 6.5 2z'/%3E%3Cpath d='M8 7h8'/%3E%3Cpath d='M8 11h4'/%3E%3C/svg%3E") no-repeat right center;
  background-size: 80px;
  pointer-events: none;
}

.test-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.test-card-body {
  position: relative;
  z-index: 1;
}

.test-card-title {
  margin: 0 0 0.75rem;
  font-size: 1.125rem;
  font-weight: 700;
  color: #1e3a5f;
  line-height: 1.3;
}

.test-card-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.test-card-id {
  font-weight: 500;
}

.test-card-time {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.test-card-icon {
  flex-shrink: 0;
}

.test-card-subject {
  margin-left: auto;
}

.test-cards-empty {
  grid-column: 1 / -1;
  padding: 2rem;
  text-align: center;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.test-cards-empty p {
  margin: 0;
  color: var(--color-text-muted);
}

.test-badge {
  display: inline-block;
  font-size: 0.75rem;
  padding: 0.25rem 0.5rem;
  border-radius: 9999px;
  margin-left: 0.5rem;
}

.test-badge.free { background: #d1fae5; color: #065f46; }
.test-badge.premium { background: #dbeafe; color: #1e40af; }

/* Test preview page */
.test-preview-page {
  max-width: 42rem;
  margin: 0 auto;
  padding: 1.5rem 1rem;
}

.test-preview-back {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: #14b8a6;
  text-decoration: none;
  font-weight: 500;
  margin-bottom: 1.5rem;
  transition: color 0.15s;
}

.test-preview-back:hover {
  color: #0d9488;
}

.test-preview-card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.08);
  padding: 1.5rem;
  overflow: hidden;
}

.test-preview-header {
  margin-bottom: 0;
}

.test-preview-title-row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.test-preview-title {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
}

.test-preview-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.75rem;
  background: #fce7f3;
  color: #9d174d;
  border-radius: 9999px;
  font-size: 0.8125rem;
  font-weight: 500;
}

.test-preview-tag-icon {
  flex-shrink: 0;
}

.test-preview-subject-grade {
  margin: 0 0 0.75rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
}

.test-preview-meta {
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.test-preview-meta li {
  margin-bottom: 0.25rem;
}

.test-preview-divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 1.25rem 0;
}

.test-preview-content-title {
  margin: 0 0 0.75rem;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
}

.test-preview-content-list {
  margin: 0 0 1.5rem;
  padding: 0;
  list-style: none;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.test-preview-content-list li {
  margin-bottom: 0.25rem;
}

.test-preview-actions {
  padding-top: 0.5rem;
}

.test-preview-actions .btn-lg {
  width: 100%;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
}

/* Pricing cards */
.pricing-grid {
  display: grid;
  gap: 1.25rem;
}

.pricing-card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow);
}

.pricing-card h2 {
  margin: 0 0 0.5rem;
  font-size: 1.25rem;
}

.pricing-card .price {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

/* Dashboard stats */
.stats-grid {
  display: grid;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--color-bg);
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.stat-card .label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.stat-card .value {
  font-size: 1.25rem;
  font-weight: 600;
}

/* Auth forms */
.auth-card {
  max-width: 28rem;
  margin: 0 auto;
}

/* Hero section */
.hero {
  padding: 2rem 0;
  position: relative;
}

/* Hero with video/image background - 680px height, fixed bg */
.hero.hero-has-bg {
  min-height: 680px;
  height: 680px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-bg {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100vw;
  min-width: 100vw;
  height: 780px;
  z-index: 0;
  overflow: hidden;
}

.hero-bg-video,
.hero-bg-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-bg-image {
  background-size: cover;
  background-position: center;
}

.hero-bg-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
}

.hero.hero-effect-blur .hero-bg-image {
  filter: blur(2px);
}

.hero.hero-effect-zoom .hero-bg-image {
  transform: scale(1.05);
}

.hero.hero-has-bg .hero-inner {
  position: relative;
  z-index: 1;
  width: 100%;
}

.hero-content-centered {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.hero-content-centered h1,
.hero-content-centered .hero-subtitle,
.hero-content-centered .hero-content-body,
.hero-content-centered .hero-buttons {
  text-align: center;
}

.hero-content-centered .hero-buttons {
  justify-content: center;
}

.hero-inner {
  display: grid;
  gap: 2rem;
  align-items: center;
}

.hero-content h1 {
  font-size: 1.75rem;
  line-height: 1.3;
  margin: 0 0 1rem;
}

.hero-content .hero-subtitle,
.hero-content .hero-content-body {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  margin: 0 0 1.5rem;
}

.hero.hero-has-bg .hero-content .hero-subtitle,
.hero.hero-has-bg .hero-content .hero-content-body {
  color: rgba(255, 255, 255, 0.95);
}

.hero.hero-has-bg .hero-content h1 {
  color: #fff;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero-media {
  min-height: 12rem;
  background: linear-gradient(135deg, var(--color-primary-light) 0%, rgba(77, 171, 247, 0.2) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

/* Home page: full viewport width so sections fully cover hero-bg (no video on sides) */
.home-page {
  width: 100vw;
  margin-left: calc(50% - 50vw);
  box-sizing: border-box;
}

/* Sections after hero - stack above fixed hero-bg when scrolling */
.home-page .subjects-section,
.home-page .categories-section,
.home-page .how-it-works,
.home-page .why-choose,
.home-page .sample-tests,
.home-page .parents-section,
.home-page .faq-section {
  position: relative;
  z-index: 1;
  background: var(--color-bg-alt);
  width: 100%;
}

.home-page .how-it-works {
  background: var(--color-bg);
}

.home-page .parents-section {
  background: var(--color-primary-light);
}

/* Subject & category cards */
.subjects-section,
.categories-section,
.sample-tests {
  padding: var(--section-padding) 0;
}

.section-title {
  font-size: 1.5rem;
  margin: 0 0 1.5rem;
}

.subject-cards,
.category-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.subject-card,
.category-card {
  display: block;
  padding: var(--card-padding);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--color-text);
  transition: transform 0.15s, box-shadow 0.15s;
}

.subject-card:hover,
.category-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.subject-card .card-icon,
.category-card .card-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.subject-card .card-name,
.category-card .card-name {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.subject-card .card-action,
.category-card .card-action {
  font-size: 0.875rem;
  color: var(--color-primary);
}

/* How it works */
.how-it-works {
  padding: var(--section-padding) 0;
  background: var(--color-bg);
}

.how-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.how-step {
  padding: var(--card-padding);
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.how-step .step-num {
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

/* Why choose */
.why-choose {
  padding: var(--section-padding) 0;
}

.why-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.why-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 0;
  font-size: 1.0625rem;
}

.why-list li::before {
  content: "✓";
  color: var(--color-success);
  font-weight: 700;
  font-size: 1.25rem;
}

/* Sample test cards */
.sample-test-grid {
  display: grid;
  gap: 1rem;
}

.sample-test-card {
  padding: var(--card-padding);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: transform 0.15s, box-shadow 0.15s;
}

.sample-test-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.sample-test-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.125rem;
}

.sample-test-card .test-meta {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

/* Parents section */
.parents-section {
  padding: var(--section-padding) 0;
  background: var(--color-primary-light);
  border-radius: var(--radius-lg);
}

/* FAQ section */
.faq-section {
  padding: var(--section-padding) 0;
}

.faq-section .section-title {
  margin-bottom: 1.5rem;
}

/* Desktop breakpoint */
@media (min-width: 768px) {
  .nav-toggle {
    display: none;
  }

  .site-nav {
    display: flex;
    flex-direction: row;
    flex-basis: auto;
    width: auto;
    margin: 0;
    padding: 0;
    border: none;
    align-items: center;
    gap: 0.25rem;
  }

  .site-nav a {
    padding: 0.5rem 0.75rem;
    min-height: auto;
  }

  .nav-account-trigger {
    padding: 0.5rem 0.75rem;
    min-height: auto;
  }

  .locale-switcher {
    padding: 0;
    margin-left: 0.5rem;
  }

  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .pricing-grid {
    grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr));
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-inner {
    grid-template-columns: 1fr 1fr;
  }

  .hero.hero-has-bg .hero-inner {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 3rem 0;
  }

  .hero.hero-has-bg {
    padding: 0;
  }

  .hero-content h1 {
    font-size: 2.25rem;
  }

  .hero.hero-has-bg .hero-content h1 {
    font-size: 2.5rem;
  }

  .subject-cards,
  .category-cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .how-steps {
    grid-template-columns: repeat(3, 1fr);
  }

  .sample-test-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* Accordion */
.accordion {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.accordion-item {
  border-bottom: 1px solid var(--color-border);
}

.accordion-item:last-child {
  border-bottom: none;
}

.accordion-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  background: var(--color-bg);
  border: none;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  color: var(--color-text);
  transition: background 0.15s;
}

.accordion-header:hover {
  background: var(--color-bg-alt);
}

.accordion-header::after {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  border-right: 2px solid var(--color-text-muted);
  border-bottom: 2px solid var(--color-text-muted);
  transform: rotate(45deg);
  transition: transform 0.2s;
}

.accordion-item.is-open .accordion-header::after {
  transform: rotate(-135deg);
}

.accordion-body {
  display: none;
  padding: 0 1.25rem 1rem;
  background: var(--color-bg);
  color: var(--color-text-muted);
}

.accordion-item.is-open .accordion-body {
  display: block;
}

/* Tabs */
.tabs {
  margin-bottom: 1.5rem;
}

.tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  border-bottom: 2px solid var(--color-border);
  margin-bottom: 1rem;
}

.tab-trigger {
  padding: 0.75rem 1.25rem;
  background: none;
  border: none;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: color 0.15s;
}

.tab-trigger:hover {
  color: var(--color-primary);
}

.tab-trigger.is-active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.tab-panel {
  display: none;
}

.tab-panel.is-active {
  display: block;
}

/* Progress bar */
.progress {
  height: 0.5rem;
  background: var(--color-bg-alt);
  border-radius: 9999px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: var(--color-primary);
  border-radius: 9999px;
  transition: width 0.3s ease;
}

.progress-bar.accent {
  background: var(--color-accent);
}

.progress-bar.success {
  background: var(--color-success);
}

/* Footer */
.site-footer {
  background: var(--color-text);
  color: var(--color-bg-alt);
  margin-top: auto;
  padding: 2rem 0;
  z-index: 1;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-heading {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 0.75rem;
  color: var(--color-bg);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--color-bg);
}

.footer-sublinks {
  list-style: none;
  padding-left: 1rem;
  margin: 0.25rem 0 0;
}
.footer-sublinks a {
  font-size: 0.9rem;
  opacity: 0.9;
}

.footer-legal {
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  font-size: 0.875rem;
}

.footer-legal a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
}

.footer-legal a:hover {
  color: var(--color-bg);
}

.footer-sep {
  margin: 0 0.5rem;
  opacity: 0.5;
}

@media (min-width: 1024px) {
  main.home-main {
    padding: 0rem 1.5rem;
  }

  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .card-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .subject-cards,
  .category-cards {
    grid-template-columns: repeat(4, 1fr);
  }

  .sample-test-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ========== Admin Panel Layout ========== */
.admin-body {
  margin: 0;
  min-height: 100vh;
}

.admin-layout {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Admin header - distinct from site header */
.admin-header {
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  color: #f8fafc;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  position: sticky;
  top: 0;
  z-index: 200;
}

.admin-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.5rem;
  max-width: 100%;
}

.admin-logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  color: #f8fafc;
  text-decoration: none;
}

.admin-logo:hover {
  color: #94a3b8;
}

.admin-header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.admin-link-out {
  color: #94a3b8;
  text-decoration: none;
  font-size: 0.9rem;
}

.admin-link-out:hover {
  color: #f8fafc;
}

.admin-locale {
  font-size: 0.875rem;
  color: #94a3b8;
}

.admin-locale a {
  color: #94a3b8;
  text-decoration: none;
}

.admin-locale a:hover {
  color: #f8fafc;
}

.admin-logout {
  color: #f87171;
  text-decoration: none;
  font-size: 0.9rem;
}

.admin-logout:hover {
  color: #fca5a5;
}

/* Admin main layout: sidebar + content */
.admin-main {
  display: flex;
  flex: 1;
  min-height: calc(100vh - 3.5rem);
}

/* Left sidebar menu */
.admin-sidebar {
  width: 260px;
  flex-shrink: 0;
  background: #f1f5f9;
  border-right: 1px solid var(--color-border);
  padding: 1rem 0;
}

.admin-nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.admin-nav-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.95rem;
  border-left: 3px solid transparent;
  transition: background 0.15s, color 0.15s;
}

.admin-nav-item:hover {
  background: #e2e8f0;
  color: var(--color-primary);
}

.admin-nav-item.is-active {
  background: #e2e8f0;
  color: var(--color-primary);
  font-weight: 600;
  border-left-color: var(--color-primary);
}

.admin-nav-icon {
  font-size: 1.1rem;
  opacity: 0.85;
}

.admin-nav-group {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.admin-nav-parent {
  cursor: pointer;
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  font: inherit;
  color: var(--color-text-muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.5rem 1.25rem 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.admin-nav-parent:hover {
  background: #e2e8f0;
  color: var(--color-primary);
}

.admin-nav-chevron {
  margin-left: auto;
  transform: rotate(-90deg);
  transition: transform 0.2s;
  font-size: 0.75rem;
}

.admin-nav-group.is-open .admin-nav-chevron {
  transform: rotate(0deg);
}

.admin-nav-sub {
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  padding-left: 0.5rem;
}

.admin-nav-sub .admin-nav-item {
  padding-left: 1rem;
  font-size: 0.9rem;
}

.admin-nav-sub .admin-nav-icon {
  display: none;
}

.admin-nav-group.is-open .admin-nav-sub {
  display: flex;
}

.admin-nav-subject {
  padding: 0.4rem 1rem 0.2rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  cursor: default;
}

.admin-nav-sub-sub {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding-left: 0.75rem;
  margin-bottom: 0.5rem;
}

.admin-nav-sub-sub .admin-nav-item {
  padding-left: 0.75rem;
  font-size: 0.85rem;
}

.admin-nav-empty {
  padding: 0.4rem 1rem;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-style: italic;
}

@media (max-width: 767px) {
  .admin-nav-group .admin-nav-sub {
    flex-direction: column;
  }

  .admin-nav-parent {
    font-size: 0.75rem;
  }
}

/* Admin table */
.page-header-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.page-header-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.admin-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.admin-table th,
.admin-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.admin-table th {
  background: #f1f5f9;
  font-weight: 600;
}

.admin-table tbody td {
  font-weight: normal;
}

.admin-table tbody tr:hover {
  background: #f8fafc;
}

.admin-table code {
  font-size: 0.8rem;
  background: #f1f5f9;
  padding: 0.2rem 0.4rem;
  border-radius: 0.25rem;
}

.admin-badge {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  font-size: 0.75rem;
  border-radius: 0.25rem;
}

.admin-badge-draft {
  background: #fef3c7;
  color: #92400e;
}

.admin-badge-published {
  background: #d1fae5;
  color: #065f46;
}

.admin-badge-system {
  background: #dbeafe;
  color: #1e40af;
}

.admin-actions {
  white-space: nowrap;
}

.admin-actions .btn,
.admin-actions form {
  margin-right: 0.25rem;
  margin-bottom: 0.25rem;
}

.admin-actions--compact {
  width: 1%;
}

.admin-actions--compact .btn,
.admin-actions--compact form {
  margin-right: 0.2rem;
}

.btn-icon {
  padding: 0.35rem;
  min-width: 2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-icon svg {
  flex-shrink: 0;
}

.btn-sm {
  padding: 0.35rem 0.65rem;
  font-size: 0.8rem;
}

.btn-danger {
  background: var(--color-error);
  color: white;
  border-color: var(--color-error);
}

.btn-danger:hover {
  background: #b91c1c;
  border-color: #b91c1c;
  color: white;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.form-section-title {
  font-size: 1rem;
  margin: 1.5rem 0 0.75rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}

.admin-page-form .form-group label {
  display: block;
  margin-bottom: 0.35rem;
  font-weight: 500;
  font-size: 0.9rem;
}

.admin-page-form .form-group-fieldset {
  border: none;
  padding: 0;
  margin: 0 0 1rem;
  min-width: 0;
}

.admin-page-form .form-legend {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  font-size: 0.9rem;
  padding: 0;
}

.admin-page-form .form-row--price-split .form-group {
  margin-bottom: 0;
}

@media (max-width: 767px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

/* Admin content area */
.admin-content {
  flex: 1;
  padding: 1.5rem 2rem;
  background: var(--color-bg);
  overflow-x: auto;
  max-width: 1320px;
}

.admin-content .page-header {
  margin-bottom: 1.5rem;
}

.admin-content .page-header h1 {
  margin: 0;
  font-size: 1.5rem;
}

.admin-flashes {
  margin-bottom: 1rem;
}

.btn-danger-outline {
  background: transparent;
  color: var(--color-error);
  border: 1px solid var(--color-error);
}
.btn-danger-outline:hover {
  background: var(--color-error);
  color: white;
}

/* Menu editor - two-column WordPress-style layout */
.menu-select-form {
  margin-bottom: 1.5rem;
}
.menu-select-form .form-hint {
  display: block;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}
.menu-select-form select {
  min-width: 280px;
}
.menu-select-row {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}
.menu-select-row select {
  flex: 1;
  max-width: 320px;
}

.menu-editor {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 2rem;
  align-items: start;
}
@media (max-width: 991px) {
  .menu-editor {
    grid-template-columns: 1fr;
  }
}

.menu-panel-title {
  margin: 0 0 1rem;
  font-size: 1.1rem;
  font-weight: 600;
}

.menu-accordion {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-bg);
}
.menu-accordion-item {
  border-bottom: 1px solid var(--color-border);
}
.menu-accordion-item:last-child {
  border-bottom: none;
}
.menu-accordion-item summary {
  padding: 0.75rem 1rem;
  cursor: pointer;
  font-weight: 500;
  background: var(--color-bg-alt);
  user-select: none;
}
.menu-accordion-item summary:hover {
  background: #e2e8f0;
}
.menu-accordion-item[open] summary {
  border-bottom: 1px solid var(--color-border);
}
.menu-accordion-content {
  padding: 0.75rem 1rem;
  max-height: 280px;
  overflow-y: auto;
}
.menu-add-form-bulk {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.menu-select-all {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
  cursor: pointer;
  margin-bottom: 0.25rem;
}
.menu-select-all input {
  margin: 0;
}
.menu-checkbox-list {
  list-style: none;
  margin: 0 0 0.75rem;
  padding: 0;
  max-height: 220px;
  overflow-y: auto;
}
.menu-checkbox-list li {
  margin-bottom: 0.35rem;
}
.menu-checkbox-list li label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-size: 0.9rem;
}
.menu-checkbox-list li label input {
  margin: 0;
  flex-shrink: 0;
}
.menu-add-btn-bottom {
  align-self: flex-start;
  margin-top: 0.25rem;
}
.menu-empty {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}
.menu-custom-link-form .form-group {
  margin-bottom: 0.75rem;
}
.menu-custom-link-form .form-group:last-of-type {
  margin-bottom: 1rem;
}

.menu-structure-hint {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}
.menu-structure-list {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
}
.menu-structure-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--color-border);
}
.menu-structure-item:last-child {
  border-bottom: none;
}
.menu-structure-item:hover {
  background: var(--color-bg-alt);
}
.menu-structure-item.menu-drag-dragging {
  opacity: 0.5;
}
.menu-structure-handle {
  cursor: grab;
  color: var(--color-text-muted);
  font-size: 1rem;
  user-select: none;
}
.menu-structure-label {
  flex: 1;
  font-weight: 500;
}
.menu-structure-type {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}
.menu-structure-actions {
  display: inline-flex;
  gap: 0.25rem;
}
.menu-indent-btn,
.menu-outdent-btn {
  padding: 0.2rem 0.4rem;
  font-size: 0.75rem;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
}
.menu-indent-btn:hover,
.menu-outdent-btn:hover {
  background: var(--color-border);
}
.menu-structure-children {
  list-style: none;
  margin: 0.5rem 0 0 1.5rem;
  padding: 0;
  border-left: 2px solid var(--color-border);
}
.menu-structure-children .menu-structure-item {
  margin-left: 0.5rem;
}
.menu-item-delete-form {
  margin: 0;
}
.menu-structure-empty {
  padding: 1.5rem 1rem;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  list-style: none;
}
.menu-actions {
  display: flex;
  gap: 1rem;
  align-items: center;
}
.menu-actions .btn {
  margin: 0;
}


/* Mobile: sidebar becomes horizontal top bar */
@media (max-width: 767px) {
  .admin-main {
    flex-direction: column;
  }

  .admin-sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    padding: 0.5rem;
  }

  .admin-nav {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: flex-start;
  }

  .admin-nav-item {
    padding: 0.5rem 0.75rem;
    border-left: none;
    border-bottom: 3px solid transparent;
    font-size: 0.85rem;
  }

  .admin-nav-item.is-active {
    border-left: none;
    border-bottom-color: var(--color-primary);
  }

  .admin-nav-icon {
    display: none;
  }

  .admin-content {
    padding: 1rem;
  }
}

/* Fill-in-blank: numbers above underscores */
.fb-blank-wrapper {
  position: relative;
}

.fb-blank-display {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-family: inherit;
  line-height: 1.6;
  min-height: 2.4rem;
  margin-bottom: 0.25rem;
  color: var(--color-text);
  white-space: pre-wrap;
  word-wrap: break-word;
}

.fb-blank-display .fb-placeholder {
  color: var(--color-text-muted);
}

.fb-underscore {
  position: relative;
  display: inline;
}

.fb-num {
  position: absolute;
  bottom: 100%;
  left: 0;
  font-size: 0.65em;
  color: var(--color-error);
  line-height: 1;
}