/* ============================================================
   AM. </> Course Platform — Whiteboard Sketch Stylesheet
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Caveat:wght@400;500;600;700&family=Patrick+Hand&display=swap');

/* ── CSS Custom Properties ── */
:root {
  --cream: #fdfaf4;
  --cream-dark: #f5f0e8;
  --ink: #1a1a2e;
  --ink-light: #3d3d5c;
  --orange: #f97316;
  --orange-light: #fff7ed;
  --orange-dark: #c2410c;
  --blue: #3b82f6;
  --blue-light: #eff6ff;
  --blue-dark: #1d4ed8;
  --green: #22c55e;
  --purple: #a855f7;
  --red: #ef4444;
  --sketch-border: 2.5px solid var(--ink);
  --sketch-radius: 4px 12px 6px 10px / 10px 4px 12px 6px;
  --shadow-sketch: 3px 3px 0 var(--ink);
  --shadow-sketch-lg: 5px 5px 0 var(--ink);
  --font-hand: 'Caveat', cursive;
  --font-body: 'Patrick Hand', cursive;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--cream);
  color: var(--ink);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* ── Whiteboard Paper Texture ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(59, 130, 246, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 130, 246, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

/* ── Scrollbar ── */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--cream-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--ink);
  border-radius: 4px;
  border: 2px solid var(--cream-dark);
}

/* ── Layout ── */
#app {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ── Sketch Utility Classes ── */
.sketch-box {
  border: var(--sketch-border);
  border-radius: var(--sketch-radius);
  box-shadow: var(--shadow-sketch);
  background: white;
}

.sketch-box-lg {
  border: var(--sketch-border);
  border-radius: var(--sketch-radius);
  box-shadow: var(--shadow-sketch-lg);
  background: white;
}

/* ── HEADER ── */
#site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--cream);
  border-bottom: 2.5px solid var(--ink);
  padding: 0.75rem 0;
  box-shadow: 0 3px 0 var(--ink);
}

#site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

/* Branding */
.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  cursor: pointer;
}

.brand-text {
  font-family: var(--font-hand);
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.5px;
  line-height: 1;
  user-select: none;
}

.brand-code {
  color: var(--orange);
  font-size: 1.4rem;
}

.brand-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--orange);
  border-radius: 50%;
  margin: 0 2px;
  border: 2px solid var(--ink);
  vertical-align: middle;
  position: relative;
  top: -3px;
}

.brand-underline {
  display: block;
  height: 3px;
  background: var(--orange);
  border-radius: 2px;
  margin-top: 2px;
  transform: rotate(-1deg);
}

/* Header right section */
.header-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Language Toggle */
#lang-toggle {
  font-family: var(--font-hand);
  font-size: 1.1rem;
  font-weight: 600;
  padding: 0.35rem 0.9rem;
  background: var(--ink);
  color: var(--cream);
  border: var(--sketch-border);
  border-radius: 6px 14px 8px 12px / 12px 8px 14px 6px;
  box-shadow: 3px 3px 0 var(--orange);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

#lang-toggle:hover {
  background: var(--orange);
  box-shadow: 3px 3px 0 var(--ink);
  transform: translate(-1px, -1px);
}

#lang-toggle:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 var(--ink);
}

/* ── BACK BUTTON ── */
#back-btn {
  display: none;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-hand);
  font-size: 1.1rem;
  font-weight: 600;
  padding: 0.35rem 0.85rem;
  background: white;
  color: var(--ink);
  border: var(--sketch-border);
  border-radius: 8px 16px 10px 14px / 14px 10px 16px 8px;
  box-shadow: 3px 3px 0 var(--blue);
  cursor: pointer;
  transition: var(--transition);
}

#back-btn.visible {
  display: flex;
}

#back-btn:hover {
  background: var(--blue-light);
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0 var(--blue);
}

#back-btn:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 var(--blue);
}

/* ── VIEWS ── */
.view {
  display: none;
  flex: 1;
  animation: fadeSlideIn 0.35s ease forwards;
}

.view.active {
  display: flex;
  flex-direction: column;
}

@keyframes fadeSlideIn {
  from {
    opacity: 0;
    transform: translateY(18px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ── HOME VIEW ── */
#home-view {
  padding: 3rem 0 0;
}

.hero-section {
  text-align: center;
  padding: 1rem 1rem 3rem;
  position: relative;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-hand);
  font-size: 1rem;
  font-weight: 600;
  padding: 0.25rem 1rem;
  background: var(--blue-light);
  color: var(--blue-dark);
  border: 2px solid var(--blue);
  border-radius: 20px 8px 20px 8px;
  box-shadow: 2px 2px 0 var(--blue);
  margin-bottom: 1rem;
  transform: rotate(-1deg);
}

.hero-title {
  font-family: var(--font-hand);
  font-size: clamp(2rem, 6vw, 3.2rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--ink);
  margin-bottom: 0.75rem;
  position: relative;
}

.hero-title span {
  color: var(--orange);
  position: relative;
  display: inline-block;
}

.hero-title span::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--orange);
  border-radius: 2px;
  transform: rotate(-0.5deg);
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--ink-light);
  max-width: 520px;
  margin: 0 auto 0.5rem;
  line-height: 1.6;
}

/* Hero decorative arrows */
.hero-arrow {
  position: absolute;
  font-family: var(--font-hand);
  font-size: 1.2rem;
  color: var(--orange);
  opacity: 0.7;
  animation: wobble 3s ease-in-out infinite;
}

.hero-arrow:nth-child(1) {
  top: 20px;
  left: 5%;
  transform: rotate(-15deg);
}

.hero-arrow:nth-child(2) {
  top: 40px;
  right: 8%;
  transform: rotate(10deg);
  animation-delay: 1s;
}

.hero-arrow:nth-child(3) {
  bottom: 30px;
  left: 10%;
  transform: rotate(5deg);
  animation-delay: 0.5s;
}

@keyframes wobble {

  0%,
  100% {
    transform: rotate(-15deg) translateY(0);
  }

  50% {
    transform: rotate(-15deg) translateY(-6px);
  }
}

/* ── SECTION LABEL ── */
.section-label {
  font-family: var(--font-hand);
  font-size: 1rem;
  color: var(--ink-light);
  text-align: center;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.section-label::before,
.section-label::after {
  content: '';
  flex: 1;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--ink) 0, var(--ink) 6px, transparent 6px, transparent 12px);
  opacity: 0.3;
}

/* ── GRADES GRID ── */
.grades-section {
  padding: 0 0 2rem;
}

.grades-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  padding: 0.5rem;
}

/* Grade Card */
.grade-card {
  position: relative;
  background: white;
  border: var(--sketch-border);
  border-radius: 8px 20px 12px 16px / 16px 12px 20px 8px;
  box-shadow: var(--shadow-sketch-lg);
  padding: 1.75rem 1.5rem;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  overflow: hidden;
  outline: none;
}

.grade-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 60%, rgba(0, 0, 0, 0.03) 100%);
  pointer-events: none;
}

/* Color themes */
.grade-card[data-color="orange"] {
  --card-color: var(--orange);
  --card-light: var(--orange-light);
}

.grade-card[data-color="blue"] {
  --card-color: var(--blue);
  --card-light: var(--blue-light);
}

.grade-card[data-color="green"] {
  --card-color: var(--green);
  --card-light: #f0fdf4;
}

.grade-card[data-color="purple"] {
  --card-color: var(--purple);
  --card-light: #faf5ff;
}

.grade-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 8px 8px 0 var(--ink);
}

.grade-card:active {
  transform: translate(2px, 2px);
  box-shadow: 3px 3px 0 var(--ink);
}

.card-icon-wrap {
  width: 60px;
  height: 60px;
  border-radius: 12px 20px 14px 18px;
  background: var(--card-light);
  border: 2.5px solid var(--card-color);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  font-size: 1.8rem;
  box-shadow: 3px 3px 0 var(--card-color);
  transition: var(--transition);
}

.grade-card:hover .card-icon-wrap {
  transform: rotate(-5deg) scale(1.05);
}

.card-year-badge {
  display: inline-block;
  font-family: var(--font-hand);
  font-size: 0.85rem;
  padding: 0.15rem 0.65rem;
  background: var(--card-light);
  color: var(--card-color);
  border: 1.5px solid var(--card-color);
  border-radius: 20px;
  margin-bottom: 0.6rem;
  font-weight: 600;
}

.card-title-en {
  font-family: var(--font-hand);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.2rem;
  line-height: 1.2;
}

.card-title-ar {
  font-family: var(--font-hand);
  font-size: 1.1rem;
  color: var(--ink-light);
  direction: rtl;
}

.card-count {
  font-family: var(--font-hand);
  font-size: 0.9rem;
  color: var(--card-color);
  margin-top: 0.75rem;
  font-weight: 600;
}

.card-arrow {
  position: absolute;
  bottom: 0.75rem;
  right: 1rem;
  font-size: 1.2rem;
  opacity: 0;
  transform: translateX(-6px);
  transition: var(--transition);
}

.grade-card:hover .card-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* ── CONTENT VIEW ── */
#content-view {
  padding: 2rem 0 0;
}

.content-header {
  padding: 0 0 2rem;
  position: relative;
}

.content-grade-title {
  font-family: var(--font-hand);
  font-size: clamp(1.6rem, 5vw, 2.5rem);
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.4rem;
}

.content-grade-title span {
  color: var(--orange);
}

.content-grade-sub {
  font-size: 1.05rem;
  color: var(--ink-light);
  direction: rtl;
  font-family: var(--font-hand);
}

/* Tabs */
.tabs-row {
  display: flex;
  gap: 0.75rem;
  margin: 1.5rem 0;
  flex-wrap: wrap;
}

.tab-btn {
  font-family: var(--font-hand);
  font-size: 1.05rem;
  font-weight: 600;
  padding: 0.4rem 1.1rem;
  background: white;
  color: var(--ink);
  border: var(--sketch-border);
  border-radius: 6px 16px 8px 14px / 14px 8px 16px 6px;
  box-shadow: 3px 3px 0 var(--ink);
  cursor: pointer;
  transition: var(--transition);
}

.tab-btn:hover,
.tab-btn.active {
  background: var(--ink);
  color: var(--cream);
  box-shadow: 3px 3px 0 var(--orange);
  transform: translate(-1px, -1px);
}

.tab-btn.active {
  pointer-events: none;
}

/* Materials Grid */
.materials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
  padding-bottom: 2rem;
}

/* Material Card */
.material-card {
  background: white;
  border: var(--sketch-border);
  border-radius: 6px 18px 8px 14px / 14px 8px 18px 6px;
  box-shadow: var(--shadow-sketch);
  padding: 1.25rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.material-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--mat-color, var(--orange));
}

.material-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 var(--ink);
}

.mat-type-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-hand);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.15rem 0.6rem;
  border-radius: 12px;
  border: 1.5px solid;
  margin-bottom: 0.75rem;
}

.mat-type-badge.pdf {
  background: #fff1f2;
  color: #e11d48;
  border-color: #e11d48;
  --mat-color: #e11d48;
}

.mat-type-badge.video {
  background: #eff6ff;
  color: var(--blue-dark);
  border-color: var(--blue);
  --mat-color: var(--blue);
}

.mat-type-badge.playlist {
  background: #fff7ed;
  color: var(--orange-dark);
  border-color: var(--orange);
  --mat-color: var(--orange);
}

.mat-title {
  font-family: var(--font-hand);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.35rem;
  line-height: 1.3;
}

.mat-desc {
  font-size: 0.92rem;
  color: var(--ink-light);
  margin-bottom: 0.9rem;
  line-height: 1.5;
}

.mat-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-hand);
  font-size: 1rem;
  font-weight: 600;
  padding: 0.4rem 0.9rem;
  background: var(--ink);
  color: var(--cream);
  border: var(--sketch-border);
  border-radius: 4px 12px 6px 10px / 10px 6px 12px 4px;
  text-decoration: none;
  box-shadow: 3px 3px 0 var(--mat-color, var(--orange));
  transition: var(--transition);
}

.material-card:has(.pdf) .mat-link {
  --mat-color: #e11d48;
}

.material-card:has(.video) .mat-link {
  --mat-color: var(--blue);
}

.material-card:has(.playlist) .mat-link {
  --mat-color: var(--orange);
}

.mat-link:hover {
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0 var(--mat-color, var(--orange));
  opacity: 0.9;
}

.mat-link:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 var(--mat-color, var(--orange));
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  grid-column: 1 / -1;
  font-family: var(--font-hand);
  font-size: 1.2rem;
  color: var(--ink-light);
}

/* ── CONTACT SECTION ── */
#contact-section {
  background: var(--ink);
  color: var(--cream);
  position: relative;
  overflow: hidden;
  margin-top: auto;
}

#contact-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: repeating-linear-gradient(90deg, var(--orange) 0, var(--orange) 12px, var(--cream) 12px, var(--cream) 24px);
}

.contact-inner {
  padding: 3rem 1.25rem 2rem;
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}

.contact-heading {
  font-family: var(--font-hand);
  font-size: clamp(1.8rem, 5vw, 2.6rem);
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.contact-heading span {
  color: var(--orange);
}

.contact-subheading {
  font-size: 1.05rem;
  opacity: 0.7;
  margin-bottom: 2.25rem;
  font-family: var(--font-hand);
}

.contact-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-hand);
  font-size: 1.1rem;
  font-weight: 600;
  padding: 0.65rem 1.4rem;
  text-decoration: none;
  border: 2.5px solid;
  border-radius: 8px 20px 10px 18px / 18px 10px 20px 8px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.contact-link::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.2s;
}

.contact-link:hover::before {
  opacity: 0.08;
}

.contact-link:hover {
  transform: translate(-2px, -2px);
}

.contact-link:active {
  transform: translate(1px, 1px);
}

/* Social brand colors */
.contact-link.whatsapp {
  color: #25d366;
  border-color: #25d366;
  box-shadow: 3px 3px 0 #25d366;
}

.contact-link.whatsapp::before {
  background: #25d366;
}

.contact-link.whatsapp:hover {
  box-shadow: 5px 5px 0 #25d366;
}

.contact-link.facebook {
  color: #1877f2;
  border-color: #1877f2;
  box-shadow: 3px 3px 0 #1877f2;
}

.contact-link.facebook::before {
  background: #1877f2;
}

.contact-link.facebook:hover {
  box-shadow: 5px 5px 0 #1877f2;
}

.contact-link.instagram {
  color: #e1306c;
  border-color: #e1306c;
  box-shadow: 3px 3px 0 #e1306c;
}

.contact-link.instagram::before {
  background: #e1306c;
}

.contact-link.instagram:hover {
  box-shadow: 5px 5px 0 #e1306c;
}

.contact-link.tiktok {
  color: #69c9d0;
  border-color: #69c9d0;
  box-shadow: 3px 3px 0 #69c9d0;
}

.contact-link.tiktok::before {
  background: #69c9d0;
}

.contact-link.tiktok:hover {
  box-shadow: 5px 5px 0 #69c9d0;
}

.contact-link .icon-svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
  flex-shrink: 0;
}

.contact-divider {
  border: none;
  border-top: 1.5px dashed rgba(253, 250, 244, 0.2);
  margin: 0 0 1.25rem;
}

.contact-footer-text {
  font-family: var(--font-hand);
  font-size: 0.95rem;
  opacity: 0.5;
}

/* ── RESPONSIVE ── */
@media (max-width: 600px) {
  .grades-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
  }

  .grade-card {
    padding: 1.25rem 1rem;
  }

  .card-icon-wrap {
    width: 48px;
    height: 48px;
    font-size: 1.4rem;
  }

  .card-title-en {
    font-size: 1rem;
  }

  .card-title-ar {
    font-size: 0.9rem;
  }

  .materials-grid {
    grid-template-columns: 1fr;
  }

  .contact-links {
    gap: 0.75rem;
  }

  .contact-link {
    padding: 0.5rem 1rem;
    font-size: 1rem;
  }
}

@media (max-width: 380px) {
  .grades-grid {
    grid-template-columns: 1fr;
  }
}

/* ── RTL Direction Toggle ── */
body.rtl {
  direction: rtl;
}

body.rtl .card-arrow {
  right: auto;
  left: 1rem;
}

body.rtl .content-grade-sub {
  direction: ltr;
}

/* ── Decorative Scribble Elements ── */
.scribble-circle {
  position: absolute;
  border-radius: 50%;
  border: 2px dashed;
  opacity: 0.12;
  pointer-events: none;
  animation: spinSlow 20s linear infinite;
}

@keyframes spinSlow {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

.scribble-circle-1 {
  width: 300px;
  height: 300px;
  border-color: var(--orange);
  top: -80px;
  right: -80px;
}

.scribble-circle-2 {
  width: 200px;
  height: 200px;
  border-color: var(--blue);
  bottom: 20px;
  left: -60px;
  animation-direction: reverse;
  animation-duration: 15s;
}

/* ── Loading shimmer ── */
@keyframes shimmer {
  0% {
    background-position: -600px 0;
  }

  100% {
    background-position: 600px 0;
  }
}