/* ============================================
   GROW WITH US — Main Stylesheet
   ============================================ */

:root {
  --navy: #1A2744;
  --navy-light: #283A60;
  --navy-soft: #3D5079;
  --amber: #E8A33D;
  --amber-dark: #C8841F;
  --bg: #F7F8FA;
  --white: #FFFFFF;
  --ink: #1C2128;
  --ink-soft: #5B6472;
  --border: #E3E6EB;
  --success: #2E9E5B;
  --danger: #D6483B;

  --sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --radius: 8px;
  --max-w: 1180px;
  --shadow: 0 2px 8px rgba(26,39,68,0.06);
  --shadow-lift: 0 12px 28px rgba(26,39,68,0.12);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; }

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 12px 26px;
  border-radius: var(--radius);
  border: 1.5px solid transparent;
  transition: transform 0.15s ease, background 0.2s ease, box-shadow 0.2s ease;
}
.btn-primary { background: var(--amber); color: var(--navy); }
.btn-primary:hover { background: var(--amber-dark); transform: translateY(-1px); box-shadow: var(--shadow-lift); }

.btn-outline { background: transparent; border-color: rgba(255,255,255,0.4); color: var(--white); }
.btn-outline:hover { border-color: var(--white); }

.btn-navy { background: var(--navy); color: var(--white); }
.btn-navy:hover { background: var(--navy-light); }

.btn-whatsapp { background: #25D366; color: #fff; }
.btn-whatsapp:hover { background: #1ebc59; }

.btn-block { width: 100%; }
.btn-sm { padding: 8px 18px; font-size: 0.85rem; }

/* ===== HEADER ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: var(--max-w);
  margin: 0 auto;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--navy);
}
.logo-mark {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--navy);
  color: var(--amber);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
}
.main-nav { display: flex; gap: 30px; }
.main-nav a {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--ink-soft);
  transition: color 0.15s ease;
}
.main-nav a:hover, .main-nav a.active { color: var(--navy); }

.header-actions { display: flex; align-items: center; gap: 14px; }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  flex-direction: column;
  gap: 4px;
  padding: 6px;
}
.nav-toggle span { width: 22px; height: 2px; background: var(--navy); display: block; }

/* ===== HERO (homepage) ===== */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  padding: 90px 24px 100px;
  text-align: center;
  color: var(--white);
  position: relative;
  overflow: hidden;
}
.free-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(232,163,61,0.15);
  border: 1px solid rgba(232,163,61,0.4);
  color: var(--amber);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 8px 18px;
  border-radius: 30px;
  margin-bottom: 26px;
}
.hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  font-weight: 800;
  line-height: 1.15;
  max-width: 760px;
  margin: 0 auto 20px;
  letter-spacing: -0.01em;
}
.hero h1 span { color: var(--amber); }
.hero p {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.82);
  max-width: 560px;
  margin: 0 auto 36px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== SECTION HEAD ===== */
.section-head {
  text-align: center;
  max-width: 620px;
  margin: 0 auto 48px;
}
.section-tag {
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--amber-dark);
  margin-bottom: 10px;
  display: block;
}
.section-head h2 {
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 12px;
}
.section-head p { color: var(--ink-soft); font-size: 1.05rem; }

/* ===== COURSE GRID / CARDS ===== */
.courses-section { padding: 90px 24px; }
.course-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.course-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  display: flex;
  flex-direction: column;
}
.course-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); }

.course-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--navy-soft);
}
.course-thumb img { width: 100%; height: 100%; object-fit: cover; }
.course-free-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--amber);
  color: var(--navy);
  font-weight: 800;
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 20px;
}

.course-body { padding: 20px 22px 22px; flex: 1; display: flex; flex-direction: column; }
.course-category {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--amber-dark);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 8px;
}
.course-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 10px;
  line-height: 1.35;
}
.course-card p {
  color: var(--ink-soft);
  font-size: 0.92rem;
  margin-bottom: 18px;
  flex: 1;
}
.course-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border);
  padding-top: 14px;
}
.course-instructor { font-size: 0.85rem; color: var(--ink-soft); font-weight: 600; }

.section-footer-link { text-align: center; margin-top: 40px; }
.link-strong {
  font-weight: 700;
  color: var(--navy);
  border-bottom: 2px solid var(--amber);
  padding-bottom: 2px;
}

/* ===== COURSE DETAIL PAGE ===== */
.course-detail-hero {
  background: var(--navy);
  color: var(--white);
  padding: 50px 24px;
}
.breadcrumb {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 18px;
}
.breadcrumb a { color: rgba(255,255,255,0.85); }
.breadcrumb a:hover { color: var(--amber); }

.course-detail-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 40px;
  max-width: var(--max-w);
  margin: 0 auto;
  align-items: start;
}
.course-detail-info .course-category { color: var(--amber); margin-bottom: 10px; }
.course-detail-info h1 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; margin-bottom: 14px; }
.course-detail-info p { color: rgba(255,255,255,0.8); font-size: 1.02rem; margin-bottom: 24px; }

.course-detail-thumb {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lift);
}
.course-detail-thumb img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }

.course-detail-body { padding: 60px 24px; max-width: var(--max-w); margin: 0 auto; }
.course-detail-body h2 { font-size: 1.4rem; font-weight: 800; color: var(--navy); margin-bottom: 16px; }
.course-detail-body .description { color: var(--ink-soft); font-size: 1.02rem; line-height: 1.75; margin-bottom: 40px; }

.video-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  background: #000;
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 16px;
}
.video-wrap iframe, .video-wrap video { width: 100%; height: 100%; border: none; }

.lesson-list { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.lesson-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--white);
}
.lesson-row:last-child { border-bottom: none; }
.lesson-num {
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--bg);
  color: var(--navy);
  font-weight: 700;
  font-size: 0.85rem;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.lesson-title { font-weight: 600; flex: 1; }

/* ===== FORUM ===== */
.forum-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 14px;
}
.category-pills { display: flex; gap: 10px; flex-wrap: wrap; }
.category-pill {
  padding: 7px 16px;
  border-radius: 20px;
  background: var(--white);
  border: 1px solid var(--border);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink-soft);
}
.category-pill.active { background: var(--navy); color: var(--white); border-color: var(--navy); }

.thread-list { display: flex; flex-direction: column; gap: 1px; background: var(--border); border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); }
.thread-row {
  display: flex;
  align-items: center;
  gap: 18px;
  background: var(--white);
  padding: 18px 22px;
  transition: background 0.15s ease;
}
.thread-row:hover { background: #FAFBFC; }
.thread-avatar {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--amber);
  font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.thread-main { flex: 1; min-width: 0; }
.thread-title { font-weight: 700; color: var(--navy); margin-bottom: 4px; }
.thread-meta { font-size: 0.82rem; color: var(--ink-soft); }
.thread-cat-tag {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--amber-dark);
  background: rgba(232,163,61,0.12);
  padding: 3px 10px;
  border-radius: 12px;
  margin-right: 8px;
}
.thread-stats { font-size: 0.85rem; color: var(--ink-soft); text-align: right; flex-shrink: 0; }
.thread-stats strong { color: var(--navy); display: block; font-size: 1rem; }

.thread-detail-box {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  margin-bottom: 20px;
}
.post-header { display: flex; gap: 14px; align-items: center; margin-bottom: 16px; }
.post-author { font-weight: 700; color: var(--navy); }
.post-time { font-size: 0.82rem; color: var(--ink-soft); }
.post-body { color: var(--ink); line-height: 1.7; }

.reply-box { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }

/* ===== FORM ELEMENTS ===== */
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-weight: 700; font-size: 0.9rem; color: var(--navy); margin-bottom: 7px; }
.form-control {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 0.95rem;
  background: var(--white);
  transition: border-color 0.15s ease;
}
.form-control:focus { border-color: var(--navy); outline: none; }
textarea.form-control { resize: vertical; min-height: 110px; }

.auth-card {
  max-width: 420px;
  margin: 60px auto;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow);
}
.auth-card h1 { font-size: 1.5rem; font-weight: 800; color: var(--navy); margin-bottom: 6px; text-align: center; }
.auth-card .sub { text-align: center; color: var(--ink-soft); margin-bottom: 28px; font-size: 0.92rem; }
.auth-switch { text-align: center; margin-top: 18px; font-size: 0.9rem; color: var(--ink-soft); }
.auth-switch a { color: var(--navy); font-weight: 700; }

.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  margin-bottom: 18px;
  font-weight: 600;
}
.alert-error { background: #FCE9E7; color: var(--danger); border: 1px solid #F5C6C0; }
.alert-success { background: #E6F4EB; color: var(--success); border: 1px solid #BFE5CC; }

/* ===== ABOUT / CONTACT ===== */
.page-hero {
  background: var(--navy);
  color: var(--white);
  padding: 70px 24px;
  text-align: center;
}
.page-hero h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 800; margin-bottom: 12px; }
.page-hero p { color: rgba(255,255,255,0.8); max-width: 560px; margin: 0 auto; }

.page-body { padding: 70px 24px; max-width: 820px; margin: 0 auto; }
.page-body h2 { color: var(--navy); font-size: 1.4rem; font-weight: 800; margin: 32px 0 14px; }
.page-body p { color: var(--ink-soft); font-size: 1.02rem; margin-bottom: 16px; line-height: 1.75; }

.mission-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin: 40px 0;
}
.mission-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  text-align: center;
}
.mission-card .num { font-size: 1.8rem; font-weight: 800; color: var(--amber-dark); margin-bottom: 8px; }
.mission-card h3 { color: var(--navy); font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; }
.mission-card p { font-size: 0.9rem; margin: 0; }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 70px 24px;
}
.contact-info-card {
  background: var(--navy);
  color: var(--white);
  border-radius: var(--radius);
  padding: 34px;
}
.contact-info-card h3 { font-size: 1.2rem; font-weight: 800; margin-bottom: 18px; }
.contact-info-row { display: flex; gap: 14px; align-items: flex-start; margin-bottom: 20px; }
.contact-info-row .icon {
  width: 38px; height: 38px;
  background: rgba(232,163,61,0.15);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: var(--amber);
  flex-shrink: 0;
}
.contact-info-row div p { color: rgba(255,255,255,0.75); font-size: 0.9rem; margin: 0; }
.contact-info-row div strong { display: block; margin-bottom: 2px; }

.contact-form-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); padding: 34px; }

/* ===== WHATSAPP FLOAT ===== */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 200;
  background: #25D366;
  color: #fff;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 16px rgba(0,0,0,0.2);
  transition: transform 0.2s ease;
}
.whatsapp-float:hover { transform: scale(1.08); }

/* ===== FOOTER ===== */
.site-footer { background: var(--navy); color: rgba(255,255,255,0.7); padding: 60px 24px 28px; margin-top: 0; }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 36px;
  max-width: var(--max-w);
  margin: 0 auto 36px;
}
.footer-brand { display: flex; align-items: center; gap: 10px; color: var(--white); font-weight: 800; font-size: 1.1rem; margin-bottom: 14px; }
.footer-col h4 { color: var(--white); font-size: 0.95rem; font-weight: 700; margin-bottom: 16px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col a { font-size: 0.9rem; transition: color 0.15s ease; }
.footer-col a:hover { color: var(--amber); }
.footer-bottom {
  max-width: var(--max-w);
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.12);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.85rem;
}

/* ===== EMPTY STATE ===== */
.empty-state { text-align: center; padding: 60px 24px; color: var(--ink-soft); }
.empty-state h3 { color: var(--navy); margin-bottom: 8px; font-size: 1.2rem; }

/* ===== PAGINATION ===== */
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 40px; }
.pagination a, .pagination span {
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.9rem;
  background: var(--white);
  border: 1px solid var(--border);
  color: var(--navy);
}
.pagination .active { background: var(--navy); color: var(--white); border-color: var(--navy); }

/* ===== RESPONSIVE ===== */
@media (max-width: 980px) {
  .course-grid { grid-template-columns: repeat(2, 1fr); }
  .course-detail-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .mission-grid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .course-grid { grid-template-columns: 1fr; }
  .hero { padding: 60px 20px 70px; }
  .courses-section, .page-body, .contact-grid { padding: 50px 20px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}