/* ============================================================
   Material Design 3 — Courses Marketplace (Dark, Foundations-style)
   Find Parent Advocates
   ============================================================ */

/* ── MD3 Dark Theme Tokens (Foundations-style) ── */
:root {
  --md-surface: #1C1B1F;
  --md-surface-container: #211F26;
  --md-surface-container-high: #2B2930;
  --md-on-surface: #E6E1E5;
  --md-on-surface-variant: #CAC4D0;

  --md-primary: #D0BCFF;
  --md-on-primary: #381E72;
  --md-primary-container: #4F378B;
  --md-on-primary-container: #EADDFF;

  --md-outline: #938F99;
  --md-outline-variant: #49454F;

  --md-radius-sm: 8px;
  --md-radius-md: 12px;
  --md-radius-lg: 16px;
  --md-radius-pill: 28px;

  --md-easing: cubic-bezier(0.2, 0, 0, 1);
  --md-duration: 200ms;
  --md-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

/* ── Base ── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "Roboto", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background-color: var(--md-surface);
  color: var(--md-on-surface);
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
}

body.has-premium-nav .courses-page {
  padding-top: 0;
}

/* ── Page Layout ── */
.courses-page {
  min-height: 100vh;
  padding-top: 0;
}

/* ── Hero ── */
.courses-hero {
  background: var(--md-surface);
  padding: 2.5rem 2rem 2rem;
  border-bottom: 1px solid var(--md-outline-variant);
}

.courses-hero__inner {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.courses-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--md-on-primary-container);
  background: var(--md-primary-container);
  padding: 0.375rem 1rem;
  border-radius: var(--md-radius-pill);
  margin-bottom: 1.25rem;
}

.courses-hero__eyebrow .material-symbols-outlined {
  font-size: 1.125rem;
}

.courses-hero__title {
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--md-on-surface);
  margin-bottom: 0.75rem;
}

.courses-hero__subtitle {
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--md-on-surface-variant);
  max-width: 600px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .courses-hero {
    padding: 3rem 2rem 2.5rem;
  }

  .courses-hero__subtitle {
    font-size: 1.125rem;
  }
}

/* ── Grid Section ── */
.courses-grid-section {
  padding: 2rem;
  min-height: 50vh;
}

.courses-grid__inner {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
}

/* ── Loading / Error ── */
.courses-loading,
.courses-error {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 4rem 2rem;
  color: var(--md-on-surface-variant);
}

.courses-loading__icon {
  font-size: 2.5rem;
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

.courses-error .material-symbols-outlined {
  font-size: 2.5rem;
  color: var(--md-on-surface-variant);
}

.courses-loading.hidden,
.courses-error.hidden {
  display: none !important;
}

/* ── Grid (MD3 Foundations-style card layout) ── */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.courses-grid:empty {
  display: none;
}

/* ── Law Strand Card ── */
.law-card {
  background: var(--md-surface-container);
  border-radius: var(--md-radius-lg);
  overflow: hidden;
  border: 1px solid var(--md-outline-variant);
  transition: box-shadow var(--md-duration) var(--md-easing),
    transform var(--md-duration) var(--md-easing);
  display: block;
  text-decoration: none;
  color: inherit;
  position: relative;
}

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

.law-card__graphic {
  position: relative;
  height: 160px;
  overflow: hidden;
}

/* Abstract graphic variants (Foundations-style) */
.law-card__graphic--1 {
  background: linear-gradient(135deg, #4F378B 0%, #7D5260 50%, #2B2930 100%);
}

.law-card__graphic--1::before {
  content: "";
  position: absolute;
  bottom: -20px;
  left: 0;
  right: 0;
  height: 80px;
  background: radial-gradient(ellipse 80% 100% at 50% 0%, rgba(208, 188, 255, 0.3), transparent);
}

.law-card__graphic--1::after {
  content: "";
  position: absolute;
  top: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(187, 222, 251, 0.5);
}

.law-card__graphic--2 {
  background: linear-gradient(145deg, #6750A4 0%, #7D5260 40%, #1C1B1F 100%);
}

.law-card__graphic--2::before {
  content: "";
  position: absolute;
  bottom: 0;
  left: -20px;
  width: 120px;
  height: 120px;
  background: rgba(255, 183, 77, 0.25);
  border-radius: 50%;
}

.law-card__graphic--2::after {
  content: "";
  position: absolute;
  top: 30px;
  right: 30px;
  width: 60px;
  height: 40px;
  background: rgba(187, 222, 251, 0.35);
  border-radius: 12px;
}

.law-card__graphic--3 {
  background: linear-gradient(120deg, #4F378B 0%, #2B2930 60%, #211F26 100%);
}

.law-card__graphic--3::before {
  content: "";
  position: absolute;
  bottom: -30px;
  right: -20px;
  width: 140px;
  height: 100px;
  background: linear-gradient(180deg, transparent, rgba(255, 183, 77, 0.2));
  border-radius: 50% 50% 0 0;
}

.law-card__graphic--4 {
  background: linear-gradient(160deg, #7D5260 0%, #4F378B 50%, #1C1B1F 100%);
}

.law-card__graphic--4::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(187, 222, 251, 0.25);
  border: 2px solid rgba(208, 188, 255, 0.3);
}

.law-card__graphic--5 {
  background: linear-gradient(100deg, #6750A4 0%, #2B2930 70%, #211F26 100%);
}

.law-card__graphic--5::before {
  content: "";
  position: absolute;
  top: 20px;
  left: 20px;
  width: 50px;
  height: 50px;
  background: rgba(255, 183, 77, 0.2);
  border-radius: 8px;
}

.law-card__graphic--5::after {
  content: "";
  position: absolute;
  bottom: 30px;
  right: 40px;
  width: 70px;
  height: 70px;
  background: rgba(187, 222, 251, 0.2);
  border-radius: 50%;
}

/* Card body */
.law-card__body {
  padding: 1.5rem;
}

.law-card__badge {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--md-outline);
  background: var(--md-surface-container-high);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  margin-bottom: 0.5rem;
}

.law-card__title {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--md-on-surface);
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.law-card__description {
  font-size: 0.9375rem;
  color: var(--md-on-surface-variant);
  line-height: 1.5;
}

.law-card__meta {
  margin-top: 1rem;
  font-size: 0.8125rem;
  color: var(--md-outline);
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.law-card__meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

@media (min-width: 900px) {
  .courses-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ── MD3 Side sheet ── */
.sidesheet-scrim {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--md-duration) var(--md-easing),
    visibility var(--md-duration) var(--md-easing);
}

.sidesheet-scrim.active {
  opacity: 1;
  visibility: visible;
}

.sidesheet {
  position: fixed;
  top: 64px; /* Below premium nav */
  right: 0;
  bottom: 0;
  z-index: 201;
  width: min(400px, 100vw);
  max-width: 100%;
  background: var(--md-surface-container);
  border-left: 1px solid var(--md-outline-variant);
  box-shadow: -4px 0 24px rgba(0, 0, 0, 0.3);
  transform: translateX(100%);
  transition: transform 0.3s var(--md-easing);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.sidesheet.active {
  transform: translateX(0);
}

.sidesheet__header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--md-outline-variant);
  flex-shrink: 0;
}

.sidesheet__title {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--md-on-surface);
  margin: 0;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sidesheet__close {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--md-on-surface-variant);
  cursor: pointer;
  border-radius: var(--md-radius-sm);
  flex-shrink: 0;
  transition: background var(--md-duration) var(--md-easing);
}

.sidesheet__close:hover {
  background: var(--md-surface-container-high);
  color: var(--md-on-surface);
}

.sidesheet__content {
  flex: 1;
  overflow-y: auto;
  padding: 1rem 1.25rem;
}

.sidesheet__standard {
  margin-bottom: 1.5rem;
}

.sidesheet__standard:last-child {
  margin-bottom: 0;
}

.sidesheet__standard-title {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--md-on-surface);
  margin-bottom: 0.5rem;
  line-height: 1.4;
}

.sidesheet__standard-code {
  font-size: 0.75rem;
  color: var(--md-outline);
  font-family: "Roboto Mono", monospace;
  margin-bottom: 0.375rem;
}

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

.sidesheet__benchmark {
  font-size: 0.8125rem;
  color: var(--md-on-surface-variant);
  line-height: 1.5;
  padding: 0.5rem 0 0.5rem 1rem;
  border-left: 2px solid var(--md-outline-variant);
  margin-left: 0.25rem;
}

.sidesheet__benchmark-citation {
  font-size: 0.6875rem;
  color: var(--md-outline);
  margin-top: 0.25rem;
}

.sidesheet__badge {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--md-outline);
  background: var(--md-surface-container-high);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  margin-bottom: 1rem;
}