/* ===================================================
   Kids Can Too — Global Stylesheet
   =================================================== */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;600;700;900&family=Space+Grotesk:wght@300;400;500;600;700&display=swap');

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

:root {
  --bg:           #1057B2;
  --bg-card:      #0849A3;
  --bg-card-hover:#1260C0;
  --border:       rgba(190, 218, 255, 0.28);
  --border-hover: rgba(190, 218, 255, 0.58);
  --text:         #EDF4FF;
  --text-muted:   rgba(195, 220, 255, 0.82);
  --text-dim:     rgba(165, 200, 255, 0.50);

  --civil:        #3B82F6;   /* blue */
  --rocket:       #F97316;   /* orange */
  --mech:         #10B981;   /* emerald */
  --purple:       #8B5CF6;

  --font-display: 'Orbitron', monospace;
  --font-body:    'Space Grotesk', sans-serif;

  --radius:       16px;
  --radius-sm:    10px;
  --transition:   0.25s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background-color: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Blueprint grid background */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(210, 232, 255, 0.18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(210, 232, 255, 0.18) 1px, transparent 1px);
  background-size: 44px 44px;
  pointer-events: none;
  z-index: 0;
}

/* Blueprint dot intersections */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle, rgba(220, 240, 255, 0.30) 1.5px, transparent 1.5px);
  background-size: 44px 44px;
  pointer-events: none;
  z-index: 0;
}

/* --- Layout helpers ------------------------------- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* --- Navigation ----------------------------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 18px 0;
  background: rgba(10, 54, 148, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.nav__logo-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.nav__logo-text {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text);
  line-height: 1.1;
}

.nav__logo-text span {
  color: var(--civil);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav__links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  letter-spacing: 0.03em;
  transition: color var(--transition);
}

.nav__links a:hover { color: var(--text); }

.nav__badge {
  font-size: 0.7rem;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: 4px 12px;
  border-radius: 100px;
  background: rgba(59,130,246,0.12);
  border: 1px solid rgba(59,130,246,0.3);
  color: var(--civil);
  text-decoration: none;
  transition: all var(--transition);
}

.nav__badge:hover {
  background: rgba(59,130,246,0.22);
  border-color: rgba(59,130,246,0.55);
}

/* --- Hero ----------------------------------------- */
.hero {
  padding: 96px 0 80px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--civil);
  border: 1px solid rgba(59,130,246,0.3);
  background: rgba(59,130,246,0.07);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 28px;
}

.hero__eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--civil);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.7); }
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: #fff;
  margin-bottom: 24px;
}

.hero__title .highlight {
  background: linear-gradient(135deg, var(--civil) 0%, var(--purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  font-weight: 400;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 48px;
  line-height: 1.7;
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 16px 36px;
  border-radius: 100px;
  background: linear-gradient(135deg, var(--civil), var(--purple));
  color: #fff;
  text-decoration: none;
  box-shadow: 0 0 40px rgba(59,130,246,0.3);
  transition: all var(--transition);
}

.hero__cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 60px rgba(59,130,246,0.45);
}

.hero__cta svg { transition: transform var(--transition); }
.hero__cta:hover svg { transform: translateX(4px); }

/* --- Section headers ------------------------------ */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header__label {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 12px;
}

.section-header__title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.01em;
}

.section-header__title span {
  color: var(--civil);
}

/* --- Course Grid ---------------------------------- */
.courses {
  padding: 32px 0 96px;
}

.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

/* --- Course Card ---------------------------------- */
.course-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 32px 32px;
  text-decoration: none;
  color: var(--text);
  display: flex;
  flex-direction: column;
  gap: 0;
  overflow: hidden;
  transition: all var(--transition);
  cursor: pointer;
}

/* Ambient glow on hover */
.course-card::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius);
  opacity: 0;
  transition: opacity var(--transition);
  z-index: -1;
}

.course-card--civil::before   { background: linear-gradient(135deg, rgba(59,130,246,0.25), transparent 60%); }
.course-card--rocket::before  { background: linear-gradient(135deg, rgba(249,115,22,0.25), transparent 60%); }
.course-card--mech::before    { background: linear-gradient(135deg, rgba(16,185,129,0.25), transparent 60%); }

.course-card:hover {
  transform: translateY(-6px);
  background: var(--bg-card-hover);
}

.course-card:hover::before { opacity: 1; }

.course-card--civil:hover   { border-color: rgba(59,130,246,0.5); box-shadow: 0 20px 60px rgba(59,130,246,0.18); }
.course-card--rocket:hover  { border-color: rgba(249,115,22,0.5); box-shadow: 0 20px 60px rgba(249,115,22,0.18); }
.course-card--mech:hover    { border-color: rgba(16,185,129,0.5); box-shadow: 0 20px 60px rgba(16,185,129,0.18); }

/* Corner decoration */
.course-card__corner {
  position: absolute;
  top: 0;
  right: 0;
  width: 80px;
  height: 80px;
  opacity: 0.08;
  transition: opacity var(--transition);
}

.course-card:hover .course-card__corner { opacity: 0.18; }

/* Icon badge */
.course-card__icon {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  flex-shrink: 0;
}

.course-card--civil  .course-card__icon { background: rgba(59,130,246,0.12);  border: 1px solid rgba(59,130,246,0.25); }
.course-card--rocket .course-card__icon { background: rgba(249,115,22,0.12);  border: 1px solid rgba(249,115,22,0.25); }
.course-card--mech   .course-card__icon { background: rgba(16,185,129,0.12);  border: 1px solid rgba(16,185,129,0.25); }

/* Tags */
.course-card__tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 6px;
  margin-bottom: 12px;
}

.course-card--civil  .course-card__tag { background: rgba(59,130,246,0.12);  color: var(--civil);  border: 1px solid rgba(59,130,246,0.2); }
.course-card--rocket .course-card__tag { background: rgba(249,115,22,0.12);  color: var(--rocket); border: 1px solid rgba(249,115,22,0.2); }
.course-card--mech   .course-card__tag { background: rgba(16,185,129,0.12);  color: var(--mech);   border: 1px solid rgba(16,185,129,0.2); }

.course-card__title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: #fff;
  margin-bottom: 12px;
  line-height: 1.2;
}

.course-card__desc {
  font-size: 0.925rem;
  line-height: 1.65;
  color: var(--text-muted);
  flex: 1;
  margin-bottom: 28px;
}

/* Stats row */
.course-card__meta {
  display: flex;
  align-items: center;
  gap: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  margin-bottom: 24px;
}

.course-card__stat {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
}

.course-card__stat svg { flex-shrink: 0; }

/* CTA row */
.course-card__action {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: gap var(--transition);
}

.course-card--civil  .course-card__action { color: var(--civil); }
.course-card--rocket .course-card__action { color: var(--rocket); }
.course-card--mech   .course-card__action { color: var(--mech); }

.course-card:hover .course-card__action { gap: 14px; }

/* --- Divider -------------------------------------- */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  margin: 0 0 80px;
}

/* --- Why section ---------------------------------- */
.why {
  padding: 0 0 96px;
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.why-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 28px 24px;
  text-align: center;
}

.why-card__icon {
  width: 44px;
  height: 44px;
  margin: 0 auto 16px;
  background: rgba(59,130,246,0.08);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.why-card__title {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}

.why-card__text {
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--text-muted);
}

/* --- Footer --------------------------------------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  position: relative;
  z-index: 1;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.footer__copy {
  font-size: 0.8rem;
  color: var(--text-dim);
}

.footer__links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.footer__links a {
  font-size: 0.8rem;
  color: var(--text-dim);
  text-decoration: none;
  transition: color var(--transition);
}

.footer__links a:hover { color: var(--text-muted); }

/* --- Course page ---------------------------------- */
.course-hero {
  padding: 64px 0 56px;
  position: relative;
  z-index: 1;
}

.course-hero__back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.825rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  margin-bottom: 32px;
  transition: color var(--transition);
}

.course-hero__back:hover { color: var(--text); }

.course-hero__tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: 8px;
  margin-bottom: 20px;
}

.course-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 900;
  color: #fff;
  letter-spacing: -0.01em;
  line-height: 1.1;
  margin-bottom: 20px;
}

.course-hero__desc {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--text-muted);
  max-width: 600px;
  margin-bottom: 40px;
}

.course-hero__stats {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}

.course-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.course-stat__value {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 900;
  color: #fff;
}

.course-stat__label {
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

/* --- Lesson grid ---------------------------------- */
.lessons {
  padding: 0 0 80px;
}

.lesson-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.lesson-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 24px;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  color: var(--text);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.lesson-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(59,130,246,0.12);
}

.lesson-card__number {
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--text-dim);
}

.lesson-card__title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.3;
}

.lesson-card__desc {
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--text-muted);
  flex: 1;
}

.lesson-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.lesson-card__type {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
}

.lesson-card__arrow {
  color: var(--text-dim);
  transition: all var(--transition);
}

.lesson-card:hover .lesson-card__arrow {
  color: var(--civil);
  transform: translateX(4px);
}

/* --- Coming Soon overlay ------------------------- */
.coming-soon-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-display);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 100px;
  background: rgba(107,127,163,0.1);
  border: 1px solid rgba(107,127,163,0.2);
  color: var(--text-muted);
}

/* --- Module page ---------------------------------- */
.module-header {
  padding: 56px 0 48px;
  position: relative;
  z-index: 1;
}

.module-header__back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.825rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  margin-bottom: 28px;
  transition: color var(--transition);
}

.module-header__back:hover { color: var(--text); }

.module-header__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.module-header__num {
  font-family: var(--font-display);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.module-header__sep {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-dim);
}

.module-header__course-tag {
  font-family: var(--font-display);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 6px;
}

.module-header__title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 900;
  color: #fff;
  letter-spacing: -0.01em;
  line-height: 1.1;
  margin-bottom: 16px;
}

.module-header__desc {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-muted);
  max-width: 580px;
}

/* Progress bar */
.module-progress {
  padding: 0 0 48px;
  position: relative;
  z-index: 1;
}

.module-progress__label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.module-progress__text {
  font-family: var(--font-display);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.module-progress__track {
  height: 4px;
  background: rgba(190,218,255,0.18);
  border-radius: 100px;
  overflow: hidden;
}

.module-progress__fill {
  height: 100%;
  border-radius: 100px;
  background: linear-gradient(90deg, var(--civil), var(--purple));
  transition: width 0.6s ease;
}

/* Module content area */
.module-content {
  position: relative;
  z-index: 1;
  padding: 0 0 64px;
}

.module-content__body {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 48px;
  min-height: 320px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 16px;
}

.module-placeholder-icon {
  width: 56px;
  height: 56px;
  background: rgba(59,130,246,0.08);
  border: 1px solid var(--border);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 8px;
}

.module-placeholder-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-muted);
}

.module-placeholder-text {
  font-size: 0.9rem;
  color: var(--text-dim);
  max-width: 380px;
  line-height: 1.6;
}

/* Module prev/next nav */
.module-nav {
  position: relative;
  z-index: 1;
  padding: 0 0 80px;
}

.module-nav__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.module-nav__btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  text-decoration: none;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 16px;
  transition: all var(--transition);
}

.module-nav__btn:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}

.module-nav__btn--next { justify-content: flex-end; text-align: right; }
.module-nav__btn--disabled { opacity: 0.35; pointer-events: none; }

.module-nav__icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(59,130,246,0.08);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--text-muted);
  transition: all var(--transition);
}

.module-nav__btn:hover .module-nav__icon {
  background: rgba(59,130,246,0.15);
  border-color: rgba(59,130,246,0.35);
  color: var(--civil);
}

.module-nav__label {
  font-family: var(--font-display);
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 4px;
}

.module-nav__title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
}

/* --- Responsive ---------------------------------- */
@media (max-width: 768px) {
  .nav__links { display: none; }
  .hero { padding: 64px 0 56px; }
  .course-grid { grid-template-columns: 1fr; }
  .footer__inner { flex-direction: column; align-items: flex-start; }
}