/* ==========================================================================
   MATHCOURSE - COMPLETE RESPONSIVE DESIGN SYSTEM & STYLESHEET
   Supports: Desktop (≥1024px), Tablet (768px-1023px), Mobile (≤767px)
   ========================================================================== */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800;900&display=swap');

/* --- CSS Variables & Design Tokens --- */
:root {
  /* Colors */
  --primary-purple: #5F17F5;
  --dark-purple: #4612D4;
  --deep-purple-bg: #2F098C;
  --darker-purple: #180645;
  --navbar-purple: #4A12D8;
  
  --accent-green: #52EDAF;
  --accent-green-hover: #38E79F;
  --accent-green-glow: rgba(82, 237, 175, 0.55);
  
  --text-white: #FFFFFF;
  --text-lilac: #D7C4FF;
  --text-lilac-subtle: #B89EFF;
  --text-dark: #171126;
  --text-muted: #6B7280;
  --text-secondary: #4A4A68;
  
  --bg-page: #F8F9FC;
  --bg-card: #FFFFFF;
  --bg-input: #F3F4F8;
  --border-light: rgba(0, 0, 0, 0.08);
  --border-glass: rgba(255, 255, 255, 0.15);
  
  /* Radii */
  --radius-hero: 44px;
  --radius-card: 24px;
  --radius-pill: 9999px;
  --radius-input: 14px;
  --radius-sm: 12px;
  
  /* Shadows */
  --shadow-hero: 0 35px 80px -15px rgba(95, 23, 245, 0.45);
  --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.04);
  --shadow-card-hover: 0 20px 45px rgba(95, 23, 245, 0.14);
  --shadow-btn-green: 0 0 25px rgba(82, 237, 175, 0.5);
  --shadow-btn-green-hover: 0 0 35px rgba(82, 237, 175, 0.8);
  --shadow-input-focus: 0 0 0 4px rgba(95, 23, 245, 0.15);
  
  /* Typography */
  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-page);
  color: var(--text-dark);
  line-height: 1.5;
  overflow-x: hidden;
  width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* --- Container Utility --- */
.container {
  width: 100%;
  max-width: 1220px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section-wrapper {
  padding: 90px 0;
  position: relative;
}

.section-header-center {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px auto;
}

.section-tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: var(--primary-purple);
  background: rgba(95, 23, 245, 0.08);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 14px;
}

.section-heading {
  font-size: clamp(1.85rem, 3.2vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--text-dark);
  line-height: 1.2;
  margin-bottom: 14px;
}

.section-subtext {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   1. PILL HEADER & NAVBAR (DESKTOP / TABLET / MOBILE)
   ========================================================================== */
.header-wrapper {
  position: sticky;
  top: 16px;
  z-index: 1000;
  padding: 0 16px;
  transition: var(--transition-normal);
}

.pill-navbar {
  max-width: 1200px;
  margin: 0 auto;
  background: linear-gradient(90deg, #4912D7 0%, #5818E6 50%, #4811D4 100%);
  border-radius: var(--radius-pill);
  padding: 10px 14px 10px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 12px 32px rgba(74, 18, 216, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(12px);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  position: relative;
}

.header-wrapper.scrolled .pill-navbar {
  transform: translateY(-2px);
  box-shadow: 0 18px 40px rgba(74, 18, 216, 0.45);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--text-white);
  letter-spacing: -0.3px;
  flex-shrink: 0;
}

.brand-icon {
  width: 34px;
  height: 34px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-green);
  font-size: 1.15rem;
  font-weight: 900;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.92rem;
  font-weight: 500;
  transition: color var(--transition-fast), transform var(--transition-fast);
  position: relative;
  padding: 6px 0;
}

.nav-link:hover {
  color: var(--text-white);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-green);
  transition: width var(--transition-fast);
  border-radius: 2px;
}

.nav-link:hover::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-pill-green {
  background-color: var(--accent-green);
  color: #0c2b1e;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.3px;
  text-transform: uppercase;
  padding: 10px 22px;
  border-radius: var(--radius-pill);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: var(--shadow-btn-green);
  transition: all var(--transition-normal);
  border: none;
  cursor: pointer;
  white-space: nowrap;
}

.btn-pill-green:hover {
  background-color: var(--accent-green-hover);
  transform: translateY(-2px) scale(1.02);
  box-shadow: var(--shadow-btn-green-hover);
  color: #051a11;
}

.btn-pill-green:active {
  transform: translateY(0) scale(0.98);
}

.mobile-toggle {
  display: none;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--text-white);
  border-radius: 10px;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.mobile-toggle:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* ==========================================================================
   2. HERO SECTION
   ========================================================================== */
.hero-section-wrapper {
  margin-top: 20px;
  padding: 0 16px;
}

.hero-card {
  max-width: 1200px;
  margin: 0 auto;
  background: linear-gradient(145deg, #5F17F5 0%, #4A12D2 45%, #34099F 100%);
  border-radius: var(--radius-hero);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-hero);
  padding: 64px 64px 44px 64px;
  color: var(--text-white);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.hero-card::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -100px;
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(120, 50, 255, 0.45) 0%, rgba(95, 23, 245, 0) 70%);
  border-radius: 50%;
  pointer-events: none;
  z-index: 1;
}

.hero-card::after {
  content: '';
  position: absolute;
  bottom: -150px;
  left: 30%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(82, 237, 175, 0.18) 0%, rgba(82, 237, 175, 0) 70%);
  border-radius: 50%;
  pointer-events: none;
  z-index: 1;
}

.hero-main-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 32px;
  position: relative;
  z-index: 2;
  margin-bottom: 28px;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--text-lilac);
  margin-bottom: 24px;
  backdrop-filter: blur(8px);
}

.badge-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-green);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-green);
  animation: pulse-dot 2s infinite;
}

.hero-title {
  font-size: clamp(2.2rem, 4.2vw, 3.8rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: var(--text-white);
  margin-bottom: 20px;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.hero-subheadline {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-white);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-subheadline-highlight {
  color: var(--accent-green);
}

.hero-description {
  font-size: 1.05rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.88);
  max-width: 520px;
  margin-bottom: 32px;
  font-weight: 400;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.btn-hero-cta {
  background-color: var(--accent-green);
  color: #0c2b1e;
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  padding: 16px 36px;
  border-radius: var(--radius-pill);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  box-shadow: 0 0 30px rgba(82, 237, 175, 0.6);
  transition: all var(--transition-normal);
  border: none;
  cursor: pointer;
}

.btn-hero-cta:hover {
  background-color: var(--accent-green-hover);
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 0 45px rgba(82, 237, 175, 0.85);
  color: #051a11;
}

.btn-hero-cta svg {
  transition: transform var(--transition-fast);
}

.btn-hero-cta:hover svg {
  transform: translateX(4px);
}

.hero-trust-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.08);
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(6px);
}

.rating-stars {
  color: #FFD233;
  font-size: 0.95rem;
  letter-spacing: 1px;
}

.trust-text {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-white);
}

.hero-visual-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.mascot-glow-bg {
  position: absolute;
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(140, 70, 255, 0.5) 0%, rgba(95, 23, 245, 0) 70%);
  border-radius: 50%;
  filter: blur(20px);
  z-index: 1;
}

.hero-mascot-img {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 440px;
  height: auto;
  border-radius: 28px;
  filter: drop-shadow(0 20px 35px rgba(0, 0, 0, 0.4));
  animation: floating-mascot 4.5s ease-in-out infinite;
  transition: transform 0.3s ease;
}

.mascot-floating-card {
  position: absolute;
  z-index: 3;
  background: rgba(20, 10, 45, 0.75);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 16px;
  padding: 10px 16px;
  color: var(--text-white);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-top-left {
  top: 15px;
  left: -20px;
  animation: float-badge 4s ease-in-out infinite alternate;
}

.card-bottom-right {
  bottom: 25px;
  right: -15px;
  animation: float-badge 3.5s ease-in-out 1s infinite alternate;
}

.card-icon-bubble {
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, var(--accent-green), #00C48C);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0c2b1e;
  font-weight: 800;
  font-size: 1rem;
}

.card-info-title {
  font-size: 0.75rem;
  color: var(--text-lilac);
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.card-info-val {
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--text-white);
}

.hero-bottom-watermark {
  position: relative;
  z-index: 2;
  margin-top: 12px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.watermark-text {
  font-size: clamp(1.4rem, 3.4vw, 3.2rem);
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1.15;
  color: var(--text-white);
  user-select: none;
}

.watermark-text .highlight-green {
  color: var(--accent-green);
  text-shadow: 0 0 20px rgba(82, 237, 175, 0.4);
}

/* ==========================================================================
   3. FITUR HIGHLIGHT SECTION
   ========================================================================== */
.preview-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.preview-card {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  padding: 36px 28px;
  text-align: left;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-light);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.preview-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(95, 23, 245, 0.25);
}

.preview-card-icon {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 24px;
  flex-shrink: 0;
}

.icon-blue-gradient {
  background: linear-gradient(135deg, #EBF1FF 0%, #D4E2FF 100%);
  color: #3860FF;
}

.icon-purple-gradient {
  background: linear-gradient(135deg, #F3EBFF 0%, #E2D0FF 100%);
  color: #6C22FF;
}

.icon-green-gradient {
  background: linear-gradient(135deg, #E6FBF3 0%, #C8F7E4 100%);
  color: #05A069;
}

.preview-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}

.preview-card-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   4. SECTION MATA PELAJARAN (SD, SMP, SMA)
   ========================================================================== */
.subjects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.subject-card {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-card);
  padding: 36px 30px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transition-normal);
}

.subject-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 24px 50px rgba(95, 23, 245, 0.15);
  border-color: rgba(95, 23, 245, 0.35);
}

.subject-card.featured {
  border: 2px solid var(--primary-purple);
  box-shadow: 0 16px 40px rgba(95, 23, 245, 0.12);
}

.featured-ribbon {
  position: absolute;
  top: -12px;
  right: 28px;
  background: linear-gradient(135deg, var(--accent-green), #05C482);
  color: #052014;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 15px rgba(82, 237, 175, 0.5);
  z-index: 2;
}

.subject-card-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.subject-icon-box {
  width: 58px;
  height: 58px;
  border-radius: 16px;
  background: linear-gradient(135deg, #F3EBFF 0%, #E3D2FF 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.7rem;
  flex-shrink: 0;
}

.subject-level-badge {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary-purple);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.subject-title {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--text-dark);
}

.subject-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 24px;
}

.subject-topics-title {
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.subject-topics-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 32px;
  flex-grow: 1;
}

.subject-topic-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--text-dark);
  font-weight: 500;
}

.topic-check-icon {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(82, 237, 175, 0.25);
  color: #068F5E;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
  flex-shrink: 0;
}

.btn-select-subject {
  width: 100%;
  padding: 13px 20px;
  border-radius: var(--radius-pill);
  font-size: 0.92rem;
  font-weight: 700;
  border: 1.5px solid var(--primary-purple);
  background: transparent;
  color: var(--primary-purple);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-select-subject:hover {
  background: var(--primary-purple);
  color: var(--text-white);
  box-shadow: 0 8px 20px rgba(95, 23, 245, 0.3);
}

.subject-card.featured .btn-select-subject {
  background: var(--primary-purple);
  color: var(--text-white);
}

.subject-card.featured .btn-select-subject:hover {
  background: var(--dark-purple);
}

/* ==========================================================================
   5. SECTION METODE BELAJAR
   ========================================================================== */
.methods-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}

.method-card {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  padding: 32px 24px;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-card);
  position: relative;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.method-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(95, 23, 245, 0.3);
}

.method-step-number {
  font-size: 2.2rem;
  font-weight: 900;
  letter-spacing: -1px;
  background: linear-gradient(135deg, var(--primary-purple), var(--accent-green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 12px;
}

.method-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}

.method-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   6. SECTION TESTIMONI
   ========================================================================== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.testimonial-card {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  padding: 34px 28px;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-normal);
  position: relative;
}

.testimonial-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
}

.testimonial-stars {
  color: #FFB800;
  font-size: 1.1rem;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.testimonial-quote {
  font-size: 0.98rem;
  color: var(--text-dark);
  line-height: 1.65;
  font-style: italic;
  margin-bottom: 24px;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  padding-top: 18px;
}

.author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, #7835FF, #4811D4);
  color: var(--text-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.author-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-dark);
}

.author-role {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ==========================================================================
   7. BOTTOM CTA BANNER
   ========================================================================== */
.cta-banner-wrapper {
  margin-bottom: 90px;
}

.cta-banner-card {
  background: linear-gradient(135deg, #5B13EC 0%, #4610C8 50%, #2A0782 100%);
  border-radius: 36px;
  padding: 56px 48px;
  box-shadow: 0 30px 70px -15px rgba(88, 20, 238, 0.4);
  color: var(--text-white);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
}

.cta-banner-card::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -50px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(82, 237, 175, 0.2) 0%, rgba(82, 237, 175, 0) 70%);
  border-radius: 50%;
}

.cta-banner-content {
  max-width: 620px;
  position: relative;
  z-index: 2;
}

.cta-banner-title {
  font-size: clamp(1.6rem, 3.2vw, 2.6rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 12px;
}

.cta-banner-desc {
  font-size: 1.05rem;
  color: var(--text-lilac);
  line-height: 1.6;
}

.cta-banner-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  position: relative;
  z-index: 2;
  flex-shrink: 0;
  flex-wrap: wrap;
}

.btn-banner-wa {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--text-white);
  padding: 14px 26px;
  border-radius: var(--radius-pill);
  font-size: 0.92rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  backdrop-filter: blur(8px);
  transition: all var(--transition-fast);
}

.btn-banner-wa:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
}

/* ==========================================================================
   8. SECTION FORM PENDAFTARAN
   ========================================================================== */
.registration-grid {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 40px;
  align-items: flex-start;
}

.reg-info-card {
  background: linear-gradient(145deg, #4F13DC 0%, #34099F 100%);
  border-radius: var(--radius-card);
  padding: 44px 36px;
  color: var(--text-white);
  box-shadow: 0 20px 45px rgba(79, 19, 220, 0.25);
  position: sticky;
  top: 100px;
}

.reg-info-tag {
  color: var(--accent-green);
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
}

.reg-info-title {
  font-size: 1.8rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 16px;
}

.reg-info-desc {
  font-size: 0.95rem;
  color: var(--text-lilac);
  line-height: 1.6;
  margin-bottom: 32px;
}

.reg-benefits-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.reg-benefit-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.92rem;
}

.benefit-icon {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: rgba(82, 237, 175, 0.2);
  color: var(--accent-green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.reg-form-card {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  padding: 44px 40px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-light);
}

.form-group {
  margin-bottom: 22px;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.form-label .required-mark {
  color: #E63946;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 13px 18px;
  font-family: var(--font-main);
  font-size: 0.95rem;
  color: var(--text-dark);
  background-color: var(--bg-input);
  border: 1.5px solid transparent;
  border-radius: var(--radius-input);
  transition: all var(--transition-fast);
  outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  background-color: var(--bg-card);
  border-color: var(--primary-purple);
  box-shadow: var(--shadow-input-focus);
}

.form-input.error,
.form-select.error,
.form-textarea.error {
  border-color: #E63946;
  background-color: #FFF5F5;
}

.error-message {
  color: #E63946;
  font-size: 0.8rem;
  font-weight: 600;
  margin-top: 6px;
  display: none;
}

.error-message.visible {
  display: block;
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

.form-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.btn-submit-form {
  width: 100%;
  padding: 16px 28px;
  background-color: var(--accent-green);
  color: #0c2b1e;
  border: none;
  border-radius: var(--radius-pill);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow: var(--shadow-btn-green);
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 10px;
}

.btn-submit-form:hover {
  background-color: var(--accent-green-hover);
  box-shadow: var(--shadow-btn-green-hover);
  transform: translateY(-2px);
}

/* ==========================================================================
   9. SUCCESS MODAL
   ========================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 5, 25, 0.75);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--bg-card);
  border-radius: 32px;
  max-width: 520px;
  width: 100%;
  padding: 44px 36px;
  text-align: center;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.35);
  transform: scale(0.9) translateY(20px);
  transition: all var(--transition-normal);
  max-height: 90vh;
  overflow-y: auto;
}

.modal-overlay.active .modal-content {
  transform: scale(1) translateY(0);
}

.modal-icon-success {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  background: linear-gradient(135deg, #52EDAF, #05C482);
  color: #052014;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.4rem;
  margin: 0 auto 24px auto;
  box-shadow: 0 0 30px rgba(82, 237, 175, 0.6);
}

.modal-title {
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.modal-desc {
  font-size: 0.98rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 24px;
}

.modal-summary-box {
  background: #F8F9FC;
  border-radius: 16px;
  padding: 16px 20px;
  text-align: left;
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 28px;
  border: 1px solid var(--border-light);
}

.modal-summary-box p {
  margin-bottom: 6px;
}

.modal-summary-box p:last-child {
  margin-bottom: 0;
}

.btn-modal-close {
  width: 100%;
  padding: 14px;
  background: var(--primary-purple);
  color: var(--text-white);
  font-weight: 700;
  border: none;
  border-radius: var(--radius-pill);
  font-size: 0.95rem;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.btn-modal-close:hover {
  background: var(--dark-purple);
}

/* ==========================================================================
   10. FOOTER
   ========================================================================== */
.footer-wrapper {
  background: #140836;
  color: var(--text-white);
  padding: 70px 0 30px 0;
  margin-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}

.footer-brand-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 16px;
  color: var(--text-white);
}

.footer-desc {
  font-size: 0.92rem;
  color: var(--text-lilac-subtle);
  line-height: 1.65;
  max-width: 320px;
}

.footer-col-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 20px;
  letter-spacing: 0.3px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link {
  font-size: 0.92rem;
  color: var(--text-lilac-subtle);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--accent-green);
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--text-lilac-subtle);
  margin-bottom: 12px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-lilac-subtle);
  flex-wrap: wrap;
  gap: 16px;
}

/* ==========================================================================
   11. KEYFRAME ANIMATIONS
   ========================================================================== */
@keyframes floating-mascot {
  0% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-16px) rotate(1deg); }
  100% { transform: translateY(0px) rotate(0deg); }
}

@keyframes float-badge {
  0% { transform: translateY(0px); }
  100% { transform: translateY(-8px); }
}

@keyframes pulse-dot {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(82, 237, 175, 0.7); }
  70% { transform: scale(1.1); box-shadow: 0 0 0 8px rgba(82, 237, 175, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(82, 237, 175, 0); }
}

/* ==========================================================================
   12. TABLET RESPONSIVE (768px - 1023px)
   ========================================================================== */
@media (max-width: 1023px) {
  .section-wrapper {
    padding: 70px 0;
  }

  .section-header-center {
    margin-bottom: 42px;
  }

  /* Header / Navbar on Tablet */
  .pill-navbar {
    padding: 8px 16px 8px 20px;
  }

  .nav-menu {
    gap: 18px;
  }

  .nav-link {
    font-size: 0.86rem;
  }

  .btn-pill-green {
    padding: 8px 16px;
    font-size: 0.8rem;
  }

  /* Hero on Tablet */
  .hero-card {
    padding: 48px 36px 36px 36px;
    border-radius: 36px;
  }

  .hero-main-grid {
    grid-template-columns: 1fr;
    gap: 36px;
    text-align: center;
  }

  .hero-content {
    align-items: center;
  }

  .hero-description {
    margin-left: auto;
    margin-right: auto;
    max-width: 600px;
  }

  .hero-cta-group {
    justify-content: center;
  }

  .hero-mascot-img {
    max-width: 360px;
  }

  .hero-bottom-watermark {
    justify-content: center;
    text-align: center;
  }

  /* Feature cards on Tablet */
  .preview-cards-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .preview-card {
    padding: 28px 20px;
  }

  /* Subjects on Tablet */
  .subjects-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .subject-card {
    padding: 28px 20px;
  }

  .featured-ribbon {
    right: 16px;
  }

  /* Methods on Tablet */
  .methods-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  /* Testimonials on Tablet */
  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .testimonial-card {
    padding: 28px 20px;
  }

  /* CTA Banner on Tablet */
  .cta-banner-card {
    flex-direction: column;
    text-align: center;
    padding: 48px 36px;
  }

  .cta-banner-content {
    max-width: 100%;
  }

  .cta-banner-actions {
    justify-content: center;
  }

  /* Registration on Tablet */
  .registration-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .reg-info-card {
    position: static;
    padding: 36px 30px;
  }

  .reg-form-card {
    padding: 36px 30px;
  }

  /* Footer on Tablet */
  .footer-grid {
    grid-template-columns: 1.2fr 1fr 1fr;
    gap: 32px;
  }
}

/* ==========================================================================
   13. MOBILE RESPONSIVE (≤ 767px)
   ========================================================================== */
@media (max-width: 767px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .section-wrapper {
    padding: 56px 0;
  }

  .section-header-center {
    margin-bottom: 32px;
  }

  .section-heading {
    font-size: 1.75rem;
  }

  .section-subtext {
    font-size: 0.95rem;
  }

  /* 1. Navbar on Mobile */
  .header-wrapper {
    top: 10px;
    padding: 0 10px;
  }

  .pill-navbar {
    padding: 8px 12px 8px 16px;
    border-radius: var(--radius-pill);
  }

  .nav-brand {
    font-size: 1.1rem;
  }

  .brand-icon {
    width: 30px;
    height: 30px;
    font-size: 1rem;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    background: linear-gradient(160deg, #3A0DA6 0%, #280678 100%);
    border-radius: 24px;
    flex-direction: column;
    padding: 24px 20px;
    gap: 16px;
    box-shadow: 0 20px 45px rgba(10, 4, 35, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.18);
    backdrop-filter: blur(16px);
    text-align: center;
    z-index: 1001;
    transform: translateY(-10px);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-normal);
  }

  .nav-menu.active {
    display: flex;
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-link {
    font-size: 1.05rem;
    padding: 10px 0;
    width: 100%;
    display: block;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .nav-menu li:last-child .nav-link {
    border-bottom: none;
  }

  .mobile-toggle {
    display: flex;
  }

  .btn-pill-green {
    padding: 8px 14px;
    font-size: 0.78rem;
  }

  /* 2. Hero on Mobile */
  .hero-section-wrapper {
    margin-top: 12px;
    padding: 0 10px;
  }

  .hero-card {
    border-radius: 28px;
    padding: 36px 18px 26px 18px;
  }

  .hero-badge {
    font-size: 0.7rem;
    padding: 5px 12px;
    letter-spacing: 0.8px;
    margin-bottom: 18px;
  }

  .hero-title {
    font-size: 1.95rem;
    line-height: 1.2;
    margin-bottom: 14px;
  }

  .hero-subheadline {
    font-size: 1.05rem;
    margin-bottom: 10px;
  }

  .hero-description {
    font-size: 0.92rem;
    line-height: 1.6;
    margin-bottom: 24px;
  }

  .hero-cta-group {
    width: 100%;
    flex-direction: column;
    gap: 14px;
  }

  .btn-hero-cta {
    width: 100%;
    padding: 15px 24px;
    font-size: 0.9rem;
  }

  .hero-trust-badge {
    width: 100%;
    justify-content: center;
    padding: 8px 14px;
  }

  .hero-mascot-img {
    max-width: 270px;
  }

  .mascot-glow-bg {
    width: 250px;
    height: 250px;
  }

  .mascot-floating-card {
    display: none; /* Hide floating badge overlays on mobile to prevent clipping */
  }

  .hero-bottom-watermark {
    padding-top: 18px;
    margin-top: 10px;
  }

  .watermark-text {
    font-size: 1.25rem;
    letter-spacing: 0.02em;
  }

  /* 3. Feature Highlight on Mobile */
  .preview-cards-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .preview-card {
    padding: 26px 20px;
    border-radius: 20px;
  }

  /* 4. Subject Cards on Mobile */
  .subjects-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .subject-card {
    padding: 28px 20px;
    border-radius: 20px;
  }

  .featured-ribbon {
    right: 20px;
    top: -10px;
  }

  /* 5. Methods on Mobile */
  .methods-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .method-card {
    padding: 24px 20px;
    border-radius: 20px;
  }

  .method-step-number {
    font-size: 1.8rem;
    margin-bottom: 8px;
  }

  /* 6. Testimonials on Mobile */
  .testimonials-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .testimonial-card {
    padding: 26px 20px;
    border-radius: 20px;
  }

  /* 7. Bottom CTA on Mobile */
  .cta-banner-wrapper {
    margin-bottom: 60px;
  }

  .cta-banner-card {
    padding: 36px 20px;
    border-radius: 24px;
  }

  .cta-banner-title {
    font-size: 1.5rem;
  }

  .cta-banner-desc {
    font-size: 0.92rem;
  }

  .cta-banner-actions {
    width: 100%;
    flex-direction: column;
    gap: 12px;
  }

  .cta-banner-actions .btn-pill-green,
  .btn-banner-wa {
    width: 100%;
  }

  /* 8. Registration Form on Mobile */
  .registration-grid {
    gap: 24px;
  }

  .reg-info-card {
    padding: 30px 20px;
    border-radius: 20px;
  }

  .reg-info-title {
    font-size: 1.5rem;
  }

  .reg-form-card {
    padding: 28px 18px;
    border-radius: 20px;
  }

  .form-grid-2 {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .form-input,
  .form-select,
  .form-textarea {
    padding: 12px 14px;
    font-size: 0.92rem;
  }

  .btn-submit-form {
    padding: 15px 20px;
    font-size: 0.92rem;
  }

  /* 9. Modal on Mobile */
  .modal-content {
    padding: 32px 20px;
    border-radius: 24px;
  }

  .modal-icon-success {
    width: 64px;
    height: 64px;
    font-size: 2rem;
    margin-bottom: 18px;
  }

  .modal-title {
    font-size: 1.4rem;
  }

  .modal-desc {
    font-size: 0.9rem;
  }

  /* 10. Footer on Mobile */
  .footer-wrapper {
    padding: 50px 0 24px 0;
    margin-top: 30px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
    margin-bottom: 40px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 10px;
  }
}

/* ==========================================================================
   14. EXTRA SMALL PHONES (≤ 380px)
   ========================================================================== */
@media (max-width: 380px) {
  .hero-title {
    font-size: 1.7rem;
  }

  .watermark-text {
    font-size: 1.1rem;
  }

  .btn-pill-green {
    padding: 6px 10px;
    font-size: 0.72rem;
  }

  .nav-brand span:last-child {
    font-size: 1.05rem;
  }
}