/* =============================================
   GeoNexus — Dark Geo-Themed Stylesheet
   Daniel Quisbert · 2026
   ============================================= */

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

:root {
  /* Backgrounds */
  --bg-primary: #040810;
  --bg-secondary: #070d1a;
  --bg-card: #0c1420;
  --bg-card-hover: #101a2e;

  /* Accent palette */
  --accent-cyan: #00e5ff;
  --accent-green: #39ff14;
  --accent-purple: #c77dff;
  --accent-orange: #ff6b35;
  --accent-yellow: #ffd60a;
  --accent-blue: #00b4ff;

  /* Text */
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.72);
  --text-muted: rgba(255, 255, 255, 0.42);

  /* Misc */
  --radius-lg: 24px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --glow-cyan: 0 0 30px rgba(0, 229, 255, 0.25);
  --glow-green: 0 0 30px rgba(57, 255, 20, 0.25);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Exo 2', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }

/* Subtle grain overlay on entire page */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 180px;
}

/* ---------- SCROLLBAR ---------- */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--accent-cyan), var(--accent-green));
  border-radius: 10px;
}

/* =============================================
   HERO SECTION
   ============================================= */
.hero {
  min-height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 2rem;
}

/* Topographic / grid background */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 180, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 180, 255, 0.05) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: 0;
  animation: gridDrift 30s linear infinite;
}

@keyframes gridDrift {
  0% { background-position: 0 0; }
  100% { background-position: 60px 60px; }
}

/* Radial gradient overlay */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse 70% 80% at 55% 50%,
    rgba(0, 180, 255, 0.1) 0%,
    rgba(20, 40, 100, 0.35) 50%,
    rgba(4, 8, 16, 0.97) 100%
  );
  z-index: 0;
}

.hero-container {
  max-width: 1200px;
  width: 100%;
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 3rem;
  padding: 0 2rem;
}

/* Corner decorations */
.corner-tl,
.corner-br {
  position: absolute;
  width: 60px;
  height: 60px;
  z-index: 5;
}
.corner-tl {
  top: 20px;
  left: 20px;
  border-top: 2px solid rgba(0, 229, 255, 0.45);
  border-left: 2px solid rgba(0, 229, 255, 0.45);
}
.corner-br {
  bottom: 20px;
  right: 20px;
  border-bottom: 2px solid rgba(57, 255, 20, 0.45);
  border-right: 2px solid rgba(57, 255, 20, 0.45);
}

/* Scan line */
.scanline {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(0, 229, 255, 0.35), transparent);
  z-index: 3;
  animation: scan 6s linear infinite;
}
@keyframes scan {
  0%   { top: 0%;   opacity: 0; }
  5%   { opacity: 1; }
  95%  { opacity: 1; }
  100% { top: 100%; opacity: 0; }
}

/* Glow blob */
.glow-left {
  position: absolute;
  left: -100px;
  top: 50%;
  transform: translateY(-50%);
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(0, 180, 255, 0.12) 0%, transparent 70%);
  z-index: 0;
  pointer-events: none;
  animation: glowPulse 5s ease-in-out infinite;
}
@keyframes glowPulse {
  0%, 100% { opacity: 0.6; transform: translateY(-50%) scale(1); }
  50%      { opacity: 1; transform: translateY(-50%) scale(1.15); }
}

/* ---------- MAP PINS ---------- */
.map-pins {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
}
.pin {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  animation: pinPulse 3s ease-in-out infinite;
  animation-delay: var(--del, 0s);
}
.pin-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color, #00e5ff);
  box-shadow: 0 0 12px var(--color, #00e5ff), 0 0 24px var(--color, #00e5ff);
}
.pin-line {
  width: 2px;
  height: 20px;
  background: linear-gradient(to bottom, var(--color, #00e5ff), transparent);
}
.pin-ring {
  position: absolute;
  top: -6px;
  left: -6px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1px solid var(--color, #00e5ff);
  animation: ringExpand 3s ease-out infinite;
  animation-delay: var(--del, 0s);
  opacity: 0.5;
}
@keyframes pinPulse {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-6px); }
}
@keyframes ringExpand {
  0%   { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(3); opacity: 0; }
}

/* ---------- CONNECTIONS SVG ---------- */
.connections {
  position: absolute;
  inset: 0;
  z-index: 1;
}

/* ---------- PARTICLES ---------- */
.particles {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}
.particle {
  position: absolute;
  border-radius: 50%;
  animation: floatP var(--dur, 8s) ease-in-out infinite;
  animation-delay: var(--del, 0s);
}
@keyframes floatP {
  0%, 100% { transform: translate(0, 0) scale(1); opacity: var(--op, 0.6); }
  50%      { transform: translate(var(--tx, 10px), var(--ty, -15px)) scale(1.2); opacity: 1; }
}

/* ---------- HERO CONTENT ---------- */
.hero-content {
  position: relative;
  max-width: 620px;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(0, 180, 255, 0.1);
  border: 1px solid rgba(0, 180, 255, 0.25);
  border-radius: 100px;
  margin-bottom: 24px;
  animation: fadeSlideUp 0.8s ease both;
}
.eyebrow-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #00e5ff;
  box-shadow: 0 0 8px #00e5ff;
  animation: blink 2s ease-in-out infinite;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.3; }
}
.eyebrow-text {
  font-size: 13px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: #00e5ff;
  font-weight: 600;
}

.brand-name {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: -2px;
  margin-bottom: 6px;
  animation: fadeSlideUp 0.8s 0.15s ease both;
}
.brand-geo {
  color: #ffffff;
  text-shadow: 0 0 30px rgba(255, 255, 255, 0.3), 0 0 60px rgba(0, 180, 255, 0.2);
}
.brand-nexus {
  background: linear-gradient(135deg, #00b4ff 0%, #00e5ff 40%, #39ff14 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 20px rgba(0, 200, 255, 0.6));
}

.brand-tagline {
  font-size: 16px;
  letter-spacing: 6px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
  margin-bottom: 32px;
  font-weight: 300;
  animation: fadeSlideUp 0.8s 0.3s ease both;
}

.divider {
  width: 120px;
  height: 3px;
  background: linear-gradient(90deg, #00b4ff, #39ff14, transparent);
  border-radius: 2px;
  margin-bottom: 28px;
  animation: fadeSlideUp 0.8s 0.4s ease both;
}

.description {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 500px;
  font-weight: 300;
  animation: fadeSlideUp 0.8s 0.5s ease both;
}

/* Tech chips */
.tech-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 40px;
  animation: fadeSlideUp 0.8s 0.6s ease both;
}
.chip {
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  font-family: 'Orbitron', sans-serif;
  border: 1px solid;
  text-transform: uppercase;
  transition: var(--transition);
  cursor: default;
}
.chip:hover {
  transform: translateY(-2px);
}
.chip-flutter { color: #54c5f8; border-color: rgba(84, 197, 248, 0.4); background: rgba(84, 197, 248, 0.08); }
.chip-flutter:hover { box-shadow: 0 4px 16px rgba(84, 197, 248, 0.2); }
.chip-geo { color: #39ff14; border-color: rgba(57, 255, 20, 0.4); background: rgba(57, 255, 20, 0.08); }
.chip-geo:hover { box-shadow: 0 4px 16px rgba(57, 255, 20, 0.2); }
.chip-postgis { color: #ff6b35; border-color: rgba(255, 107, 53, 0.4); background: rgba(255, 107, 53, 0.08); }
.chip-postgis:hover { box-shadow: 0 4px 16px rgba(255, 107, 53, 0.2); }
.chip-web { color: #c77dff; border-color: rgba(199, 125, 255, 0.4); background: rgba(199, 125, 255, 0.08); }
.chip-web:hover { box-shadow: 0 4px 16px rgba(199, 125, 255, 0.2); }
.chip-maps { color: #ffd60a; border-color: rgba(255, 214, 10, 0.4); background: rgba(255, 214, 10, 0.08); }
.chip-maps:hover { box-shadow: 0 4px 16px rgba(255, 214, 10, 0.2); }

/* Author */
.author {
  display: flex;
  align-items: center;
  gap: 14px;
  animation: fadeSlideUp 0.8s 0.7s ease both;
}
.author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, #00b4ff, #39ff14);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: 16px;
  color: #080f1e;
  flex-shrink: 0;
  box-shadow: 0 0 20px rgba(0, 180, 255, 0.3);
}
.author-info {
  display: flex;
  flex-direction: column;
}
.author-name {
  font-size: 15px;
  color: #ffffff;
  font-weight: 600;
}
.author-role {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* Community CTAs */
.community-ctas {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
  animation: fadeSlideUp 0.8s 0.85s ease both;
}

/* ---------- SHARED BUTTONS ---------- */
.btn-whatsapp,
.btn-telegram {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.9rem 1.8rem;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.95rem;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}
.btn-whatsapp {
  background: #25D366;
  color: white;
}
.btn-whatsapp:hover {
  background: #20ba5a;
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4);
}
.btn-telegram {
  background: transparent;
  color: var(--accent-cyan);
  border: 2px solid rgba(0, 229, 255, 0.3);
}
.btn-telegram:hover {
  border-color: var(--accent-cyan);
  background: rgba(0, 229, 255, 0.1);
  transform: translateY(-2px);
}

/* Globe 3D */
.globe-wrapper {
  position: relative;
  width: 520px;
  height: 520px;
  flex-shrink: 0;
  animation: fadeIn 1.2s 0.5s ease both;
}
.globe-wrapper canvas {
  width: 100% !important;
  height: 100% !important;
  display: block;
  cursor: grab;
}
.globe-wrapper canvas:active { cursor: grabbing; }

#la-paz-label {
  position: absolute;
  pointer-events: none;
  z-index: 10;
  font-family: 'Orbitron', monospace;
  font-size: 10px;
  font-weight: 900;
  color: #39ff14;
  letter-spacing: 2px;
  text-shadow: 0 0 10px #39ff14, 0 0 20px rgba(57, 255, 20, 0.5);
  opacity: 0;
  transition: opacity 0.3s;
  white-space: nowrap;
}
#la-paz-label.visible { opacity: 1; }
#la-paz-label::before {
  content: '';
  display: inline-block;
  width: 7px;
  height: 7px;
  background: #39ff14;
  border-radius: 50%;
  margin-right: 6px;
  box-shadow: 0 0 8px #39ff14, 0 0 16px #39ff14;
  vertical-align: middle;
  animation: laPazPulse 1.5s infinite;
}
@keyframes laPazPulse {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.6); opacity: 0.5; }
}

/* =============================================
   SECTION SHARED
   ============================================= */
.section-title {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(2rem, 4vw, 3rem);
  text-align: center;
  margin-bottom: 1rem;
  font-weight: 900;
  background: linear-gradient(135deg, #00b4ff 0%, #39ff14 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-subtitle-text {
  text-align: center;
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 3.5rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* =============================================
   COURSES SECTION
   ============================================= */
.courses-section {
  padding: 6rem 2rem;
  max-width: 1400px;
  margin: 0 auto;
  position: relative;
}

/* Decorative geo line above section */
.courses-section::before {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-green));
  border-radius: 2px;
  margin: 0 auto 2rem;
}

.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 2rem;
  align-items: start;
}

/* ---------- COURSE CARD ---------- */
.course-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(0, 180, 255, 0.12);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.course-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-green));
  opacity: 0;
  transition: opacity 0.3s;
}
.course-card:hover {
  transform: translateY(-8px);
  border-color: rgba(0, 229, 255, 0.35);
  box-shadow: 0 20px 50px rgba(0, 180, 255, 0.12);
}
.course-card:hover::before {
  opacity: 1;
}

/* Badges */
.course-badges {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
}
.badge-open {
  background: rgba(16, 185, 129, 0.15);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.3);
}
.badge-urgency {
  background: rgba(251, 146, 60, 0.15);
  color: #f97316;
  border: 1px solid rgba(251, 146, 60, 0.4);
  animation: badgePulse 1.5s ease-in-out infinite;
}
@keyframes badgePulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.85; transform: scale(1.03); }
}
.badge-seats {
  background: rgba(59, 130, 246, 0.15);
  color: #3b82f6;
  border: 1px solid rgba(59, 130, 246, 0.3);
}
.badge-soon {
  background: rgba(139, 92, 246, 0.15);
  color: #8b5cf6;
  border: 1px solid rgba(139, 92, 246, 0.3);
}
.badge-date {
  background: rgba(100, 116, 139, 0.15);
  color: #94a3b8;
  border: 1px solid rgba(100, 116, 139, 0.3);
}
.badge-full {
  background: rgba(239, 68, 68, 0.15);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.3);
}
.badge-next {
  background: rgba(59, 130, 246, 0.15);
  color: #3b82f6;
  border: 1px solid rgba(59, 130, 246, 0.3);
}
.badge-progress {
  background: rgba(236, 72, 153, 0.15);
  color: #ec4899;
  border: 1px solid rgba(236, 72, 153, 0.3);
}

.course-level {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--accent-cyan);
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.course-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.35rem;
  margin-bottom: 1rem;
  line-height: 1.3;
  color: var(--text-primary);
}
.course-description {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  flex-grow: 1;
  line-height: 1.7;
}

/* Course meta */
.course-meta {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 1.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.course-meta span {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Price */
.course-price {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 1.5rem;
  padding: 1.2rem;
  background: rgba(0, 180, 255, 0.04);
  border-radius: var(--radius-md);
  border: 1px solid rgba(0, 180, 255, 0.1);
}
.price-usd {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent-cyan);
}
.price-bs {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Features */
.course-features h4 {
  font-size: 0.9rem;
  margin-bottom: 0.8rem;
  color: var(--accent-green);
}
.course-features ul {
  margin-bottom: 1.5rem;
}
.course-features li {
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
}

/* Modules accordion */
.course-modules {
  margin-bottom: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.course-modules summary {
  padding: 1rem 0;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--accent-cyan);
  outline: none;
  transition: color 0.2s;
}
.course-modules summary:hover {
  color: var(--accent-green);
}
.module-item {
  display: flex;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}
.module-icon { font-size: 1.2rem; flex-shrink: 0; }
.module-item strong { display: block; font-size: 0.85rem; color: var(--text-primary); }
.module-item p { font-size: 0.75rem; color: var(--text-muted); margin: 0; }

/* Course action buttons */
.course-actions {
  margin-top: auto;
}
.btn-block {
  width: 100%;
  padding: 1rem;
  border-radius: 50px;
  font-weight: 700;
  text-align: center;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: var(--transition);
  cursor: pointer;
  font-size: 0.95rem;
  border: none;
}
.btn-primary {
  background: linear-gradient(135deg, #39ff14 0%, #2ea043 100%);
  color: #0a0e1a;
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(57, 255, 20, 0.3);
}
.btn-warning {
  background: linear-gradient(135deg, #f97316, #ea580c);
  color: white;
}
.btn-warning:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(251, 146, 60, 0.3);
}
.btn-pulse {
  animation: btnPulse 2s ease-in-out infinite;
}
@keyframes btnPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(251, 146, 60, 0.6); }
  50%      { box-shadow: 0 0 0 12px rgba(251, 146, 60, 0); }
}
.btn-outline-primary {
  background: transparent;
  color: #3b82f6;
  border: 2px solid #3b82f6;
}
.btn-outline-primary:hover {
  background: #3b82f6;
  color: white;
}
.btn-outline {
  background: transparent;
  color: #94a3b8;
  border: 2px solid rgba(203, 213, 225, 0.2);
}
.btn-outline:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(148, 163, 184, 0.5);
}
.btn-outline:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-payment-methods {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 1.5rem;
  background: transparent;
  color: var(--accent-cyan);
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.9rem;
  transition: var(--transition);
  border: 2px solid rgba(0, 229, 255, 0.25);
  cursor: pointer;
  width: 100%;
  margin-top: 0.8rem;
}
.btn-payment-methods:hover {
  border-color: var(--accent-cyan);
  background: rgba(0, 229, 255, 0.08);
  transform: translateY(-2px);
}

/* Opacity for closed cards */
.opacity-75 { opacity: 0.75; }
.opacity-60 { opacity: 0.6; }

.loading-text {
  text-align: center;
  grid-column: 1 / -1;
  padding: 2rem;
  color: var(--text-muted);
}

/* =============================================
   PORTFOLIO / TESTIMONIALS
   ============================================= */
.portfolio-toggle {
  text-align: center;
  margin: 3rem 0 2rem;
}
.btn-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  background: rgba(139, 92, 246, 0.08);
  color: var(--accent-purple);
  border-radius: 50px;
  font-weight: 700;
  transition: var(--transition);
  border: 2px solid rgba(139, 92, 246, 0.25);
  cursor: pointer;
  font-size: 1rem;
}
.btn-toggle:hover {
  border-color: var(--accent-purple);
  background: rgba(139, 92, 246, 0.15);
  transform: translateY(-2px);
}

.portfolio-content {
  display: none;
  max-width: 1200px;
  margin: 2rem auto 0;
  padding: 0 2rem;
}
.portfolio-content.active {
  display: block;
  animation: fadeSlideUp 0.5s ease;
}

.section-subtitle {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.8rem;
  margin-bottom: 2rem;
  color: var(--accent-purple);
  text-align: center;
}

/* Projects grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: 4rem;
}
.project-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(139, 92, 246, 0.15);
  transition: var(--transition);
}
.project-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(139, 92, 246, 0.15);
  border-color: rgba(139, 92, 246, 0.35);
}
.project-icon {
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
  position: relative;
  overflow: hidden;
}
.project-icon::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, var(--bg-card));
}

.project-icon.geo-theme { background: linear-gradient(135deg, #00b4ff 0%, #39ff14 100%); }
.project-icon.edu-theme { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); }
.project-icon.game-theme { background: linear-gradient(135deg, #f97316 0%, #fbbf24 100%); }
.project-icon.tool-theme { background: linear-gradient(135deg, #14b8a6 0%, #06b6d4 100%); }
.project-icon.gov-theme { background: linear-gradient(135deg, #6366f1 0%, #a855f7 100%); }

.project-content {
  padding: 1.5rem;
}
.project-content h4 {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.1rem;
  margin-bottom: 0.8rem;
  color: var(--accent-cyan);
}
.project-content p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.6;
  font-size: 0.9rem;
}
.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1rem;
}
.project-tag {
  background: rgba(0, 229, 255, 0.08);
  color: var(--accent-cyan);
  padding: 0.3rem 0.7rem;
  border-radius: 12px;
  font-size: 0.75rem;
  border: 1px solid rgba(0, 229, 255, 0.2);
}
.project-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  padding: 0.6rem 1.2rem;
  border-radius: 50px;
  border: 1px solid rgba(139, 92, 246, 0.3);
  color: var(--accent-purple);
  transition: var(--transition);
}
.project-link:hover {
  background: rgba(139, 92, 246, 0.1);
  border-color: var(--accent-purple);
}

/* Testimonials */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.testimonial-video {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(245, 158, 11, 0.15);
  transition: var(--transition);
}
.testimonial-video:hover {
  border-color: rgba(245, 158, 11, 0.35);
  box-shadow: 0 10px 30px rgba(245, 158, 11, 0.1);
}
.video-embed {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
}
.video-embed iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}
.testimonial-info {
  padding: 1rem;
}
.testimonial-info h5 {
  color: var(--accent-orange);
  margin-bottom: 0.3rem;
  font-size: 0.95rem;
}
.testimonial-info p {
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* =============================================
   FOOTER
   ============================================= */
footer {
  background: var(--bg-secondary);
  padding: 4rem 2rem 2rem;
  border-top: 1px solid rgba(0, 180, 255, 0.08);
  margin-top: 4rem;
  position: relative;
}
footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
}

.footer-content {
  max-width: 1400px;
  margin: 0 auto;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}
.footer-section h4 {
  font-family: 'Orbitron', sans-serif;
  color: var(--accent-cyan);
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}
.footer-links li {
  margin-bottom: 0.8rem;
}
.footer-links a {
  color: var(--text-secondary);
  transition: color 0.2s;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
}
.footer-links a:hover {
  color: var(--accent-cyan);
}

/* Social */
.social-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.social-link {
  width: 48px;
  height: 48px;
  background: rgba(0, 180, 255, 0.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  border: 1px solid rgba(0, 180, 255, 0.15);
  transition: var(--transition);
}
.social-link:hover {
  transform: translateY(-4px);
  border-color: var(--accent-cyan);
  box-shadow: var(--glow-cyan);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(0, 180, 255, 0.08);
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* =============================================
   FLOATING WHATSAPP
   ============================================= */
.whatsapp-float {
  position: fixed;
  width: 62px;
  height: 62px;
  bottom: 30px;
  right: 30px;
  background: #25D366;
  color: white;
  border-radius: 50%;
  text-align: center;
  font-size: 30px;
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
  z-index: 1000;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: waPulse 2s infinite;
}
.whatsapp-float:hover {
  transform: scale(1.12);
  box-shadow: 0 12px 35px rgba(37, 211, 102, 0.6);
}
@keyframes waPulse {
  0%   { box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4); }
  50%  { box-shadow: 0 8px 25px rgba(37, 211, 102, 0.7); }
  100% { box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4); }
}

/* =============================================
   PAYMENT MODAL
   ============================================= */
.payment-modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(4, 8, 16, 0.92);
  backdrop-filter: blur(12px);
  z-index: 10000;
  padding: 2rem;
  overflow-y: auto;
}
.payment-modal-overlay.active {
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease;
}

.payment-modal {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  border: 2px solid rgba(0, 229, 255, 0.25);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5);
  animation: slideUp 0.4s ease;
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

.modal-close-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: rgba(255, 255, 255, 0.08);
  border: none;
  color: white;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  z-index: 10;
}
.modal-close-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: rotate(90deg);
}
.modal-header {
  padding: 2rem 2rem 1rem;
  text-align: center;
  border-bottom: 1px solid rgba(0, 180, 255, 0.15);
}
.modal-header h3 {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.6rem;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, #00b4ff, #39ff14);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.modal-header p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Tabs */
.payment-tabs {
  display: flex;
  gap: 1rem;
  padding: 1.5rem 2rem 0;
}
.tab-btn {
  flex: 1;
  padding: 1rem;
  background: rgba(0, 180, 255, 0.06);
  border: 2px solid rgba(0, 180, 255, 0.15);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition);
}
.tab-btn:hover {
  border-color: rgba(0, 229, 255, 0.35);
}
.tab-btn.active {
  background: linear-gradient(135deg, rgba(0, 180, 255, 0.15), rgba(57, 255, 20, 0.15));
  border-color: var(--accent-cyan);
  color: white;
  box-shadow: 0 5px 15px rgba(0, 229, 255, 0.2);
}

.tab-content {
  display: none;
  padding: 2rem;
}
.tab-content.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

.qr-container {
  background: white;
  padding: 1.5rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
  text-align: center;
}
.qr-image {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  margin-bottom: 1rem;
}
.qr-actions {
  display: flex;
  justify-content: center;
}
.btn-download {
  padding: 0.8rem 1.5rem;
  background: linear-gradient(135deg, #00b4ff, #39ff14);
  color: #0a0e1a;
  border: none;
  border-radius: 50px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.9rem;
}
.btn-download:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 229, 255, 0.3);
}

.payment-instructions {
  background: rgba(0, 180, 255, 0.04);
  padding: 1.5rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(0, 180, 255, 0.12);
}
.payment-instructions h4 {
  color: var(--accent-cyan);
  margin-bottom: 1rem;
  font-size: 1.05rem;
}
.payment-instructions ol {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
  color: var(--text-secondary);
  list-style: decimal;
}
.payment-instructions li {
  margin-bottom: 0.8rem;
  line-height: 1.6;
}

.btn-send-voucher {
  display: block;
  width: 100%;
  padding: 1rem;
  background: #25D366;
  color: white;
  border-radius: 50px;
  font-weight: 700;
  text-align: center;
  transition: var(--transition);
  margin-bottom: 1rem;
}
.btn-send-voucher:hover {
  background: #20ba5a;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(37, 211, 102, 0.4);
}

.payment-note {
  background: rgba(255, 214, 10, 0.08);
  border: 1px solid rgba(255, 214, 10, 0.25);
  padding: 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--text-secondary);
}
.payment-note strong {
  color: var(--accent-yellow);
}

/* =============================================
   ANIMATIONS — SHARED
   ============================================= */
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Scroll-reveal animation class (added by JS) */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 968px) {
  .hero-container {
    flex-direction: column;
    gap: 3rem;
    text-align: center;
  }
  .hero-content {
    max-width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .tech-chips { justify-content: center; }
  .author { justify-content: center; }
  .community-ctas { justify-content: center; }
  .globe-wrapper {
    width: 350px;
    height: 350px;
  }
  .courses-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .brand-name { font-size: 2.8rem; }
  .community-ctas { flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr; }
  .projects-grid,
  .testimonials-grid { grid-template-columns: 1fr; }
  .payment-tabs { flex-direction: column; }
  .tab-content { padding: 1.5rem; }
  .hero { padding: 1rem; }
}