/* ============================================
   SOLAR GROUP — Landing Page Styles
   Premium dark theme with glassmorphism
   ============================================ */

/* --- CSS Variables --- */
:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: rgba(255, 255, 255, 0.04);
  --bg-card-hover: rgba(255, 255, 255, 0.08);
  --bg-glass: rgba(255, 255, 255, 0.06);
  --border-glass: rgba(255, 255, 255, 0.1);

  --accent-1: #02bdcb;
  --accent-2: #0178f7;
  --accent-gradient: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  --accent-glow: 0 0 30px rgba(2, 189, 203, 0.3), 0 0 60px rgba(1, 120, 247, 0.15);

  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.65);
  --text-muted: rgba(255, 255, 255, 0.4);

  --font-main: 'Inter', sans-serif;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --transition: 0.3s ease;
  --transition-slow: 0.5s ease;

  --container-width: 1200px;
  --header-height: 70px;
}

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

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

body {
  font-family: var(--font-main);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  color: inherit;
}

input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

/* --- Container --- */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* --- Section base --- */
.section {
  padding: 100px 0;
  position: relative;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  color: var(--accent-1);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 20px;
}

.section-title {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.section-title .gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 640px;
  line-height: 1.7;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(2, 189, 203, 0.5), 0 0 60px rgba(1, 120, 247, 0.3), 0 0 100px rgba(2, 189, 203, 0.15);
}

.btn-secondary {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  backdrop-filter: blur(10px);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-icon {
  width: 20px;
  height: 20px;
}

/* --- Glass Card --- */
.glass-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 32px;
  transition: var(--transition);
}

.glass-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(2, 189, 203, 0.25);
  transform: translateY(-4px);
  box-shadow: 0 8px 40px rgba(2, 189, 203, 0.12), 0 0 80px rgba(1, 120, 247, 0.06);
}

/* ============================================
   HEADER
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 1000;
  transition: var(--transition);
}

.header.scrolled {
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-glass);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.3px;
}

.header-logo .logo-icon {
  height: 36px;
  width: auto;
  object-fit: contain;
}

.header-logo .logo-accent {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.header-nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
}

.header-nav a:hover {
  color: var(--text-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Language Switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 2px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  padding: 3px;
}

.lang-switcher a {
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  border-radius: 6px;
  transition: var(--transition);
  text-transform: uppercase;
}

.lang-switcher a:hover {
  color: var(--text-secondary);
}

.lang-switcher a.active {
  background: var(--accent-gradient);
  color: #fff;
}

/* Mobile menu */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
}

.mobile-toggle span {
  display: block;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

.mobile-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-menu {
  display: none;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 60%;
  height: 100%;
  background: radial-gradient(ellipse, rgba(2, 189, 203, 0.15) 0%, transparent 60%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  right: -20%;
  width: 50%;
  height: 80%;
  background: radial-gradient(ellipse, rgba(1, 120, 247, 0.12) 0%, transparent 60%);
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
}

/* --- Hero Background Logo --- */
.hero-bg-logo {
  position: absolute;
  left: -25%;
  top: 50%;
  transform: translateY(-50%);
  width: 90vh;
  height: 90vh;
  opacity: 0.04;
  pointer-events: none;
  z-index: 0;
  animation: heroLogoSpin 120s linear infinite;
}

@keyframes heroLogoSpin {
  from { transform: translateY(-50%) rotate(0deg); }
  to { transform: translateY(-50%) rotate(360deg); }
}

/* --- Hero Grid (two columns) --- */
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero-content {
  max-width: 620px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: 100px;
  font-size: 14px;
  font-weight: 500;
  color: var(--accent-1);
  margin-bottom: 28px;
  animation: fadeInUp 0.8s ease forwards;
  box-shadow: 0 0 20px rgba(2, 189, 203, 0.15);
}

.hero-badge .pulse-dot {
  width: 8px;
  height: 8px;
  background: #00e676;
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

.hero-title {
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -1.5px;
  margin-bottom: 24px;
  animation: fadeInUp 0.8s ease 0.1s forwards;
  opacity: 0;
}

.hero-subtitle {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 560px;
  animation: fadeInUp 0.8s ease 0.2s forwards;
  opacity: 0;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.3s forwards;
  opacity: 0;
}

/* --- Hero Video --- */
.hero-video {
  animation: fadeInUp 0.8s ease 0.3s forwards;
  opacity: 0;
}

.hero-video-wrapper {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-glass);
  background: var(--bg-glass);
  box-shadow: var(--accent-glow), 0 8px 32px rgba(0, 0, 0, 0.4);
}

.hero-video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.hero-video-caption {
  margin-top: 12px;
  font-size: 14px;
  color: var(--text-muted);
  text-align: center;
}

.hero-stats {
  display: flex;
  gap: 48px;
  margin-top: 64px;
  animation: fadeInUp 0.8s ease 0.4s forwards;
  opacity: 0;
}

.hero-stat {
  text-align: left;
}

.hero-stat-value {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
  filter: drop-shadow(0 0 15px rgba(2, 189, 203, 0.35));
}

.hero-stat-label {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ============================================
   CROWDINVESTING SECTION
   ============================================ */
.crowdinvesting {
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}

.crowdinvesting::after {
  content: '';
  position: absolute;
  top: 20%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(2, 189, 203, 0.1) 0%, transparent 60%);
  pointer-events: none;
}

.crowdinvesting-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 48px;
}

.crowd-card {
  padding: 36px;
  text-align: center;
}

.crowd-card-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-gradient);
  border-radius: var(--radius-md);
  font-size: 24px;
  box-shadow: 0 4px 20px rgba(2, 189, 203, 0.3), 0 0 40px rgba(1, 120, 247, 0.15);
}

.crowd-card-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}

.crowd-card-text {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.crowd-compare {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 32px;
  align-items: center;
  margin-top: 48px;
}

.crowd-compare-col {
  padding: 32px;
  border-radius: var(--radius-lg);
  text-align: center;
}

.crowd-compare-col.fading {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.crowd-compare-col.highlight {
  background: rgba(2, 189, 203, 0.05);
  border: 1px solid rgba(2, 189, 203, 0.2);
  box-shadow: 0 0 40px rgba(2, 189, 203, 0.05);
}

.crowd-compare-col h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 16px;
}

.crowd-compare-col ul {
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.crowd-compare-col ul li {
  font-size: 15px;
  color: var(--text-secondary);
  padding-left: 28px;
  position: relative;
}

.crowd-compare-col ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.crowd-compare-col.fading ul li::before {
  background: rgba(255, 255, 255, 0.1);
}

.crowd-compare-col.highlight ul li::before {
  background: var(--accent-gradient);
}

.crowd-compare-vs {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-muted);
  text-transform: uppercase;
}

/* ============================================
   PROJECT SECTIONS
   ============================================ */
.project-section {
  position: relative;
  overflow: hidden;
}

.project-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-glass), transparent);
}

.project-section::after {
  content: '';
  position: absolute;
  bottom: 10%;
  left: -8%;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(1, 120, 247, 0.1) 0%, transparent 60%);
  pointer-events: none;
}

.project-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 48px;
}

.project-header .section-subtitle {
  max-width: 520px;
}

/* Features grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 40px;
}

.feature-card {
  padding: 28px;
}

.feature-card-number {
  font-size: 48px;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.3;
  line-height: 1;
  margin-bottom: 16px;
}

.feature-card h4 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* Video embed */
.video-embed {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16/9;
  margin-top: 48px;
  border: 1px solid var(--border-glass);
}

.video-embed iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.video-embed .video-placeholder {
  width: 100%;
  height: 100%;
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.video-play-btn {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--accent-glow);
  transition: var(--transition);
}

.video-play-btn:hover {
  transform: scale(1.1);
}

.video-play-btn svg {
  width: 32px;
  height: 32px;
  fill: #fff;
  margin-left: 4px;
}

/* Progress / Timeline */
.project-progress {
  margin-top: 48px;
}

.progress-bar-wrapper {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 100px;
  height: 12px;
  overflow: hidden;
  margin-top: 16px;
}

.progress-bar-fill {
  height: 100%;
  background: var(--accent-gradient);
  border-radius: 100px;
  transition: width 1.5s ease;
  position: relative;
  box-shadow: 0 0 12px rgba(2, 189, 203, 0.4), 0 0 30px rgba(1, 120, 247, 0.2);
}

.progress-bar-fill::after {
  content: '';
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 30px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3));
  border-radius: 0 100px 100px 0;
}

.progress-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.progress-label {
  font-size: 14px;
  color: var(--text-secondary);
}

.progress-value {
  font-size: 18px;
  font-weight: 700;
  color: var(--accent-1);
}

/* ============================================
   AIRSHIP SLIDER
   ============================================ */
.airship-slider {
  margin-top: 48px;
  position: relative;
}

.airship-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.airship-tab {
  padding: 10px 24px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 600;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  transition: var(--transition);
  cursor: pointer;
}

.airship-tab:hover {
  background: var(--bg-card-hover);
}

.airship-tab.active {
  background: var(--accent-gradient);
  border-color: transparent;
  color: #fff;
}

.airship-card {
  display: none;
  animation: fadeIn 0.5s ease;
}

.airship-card.active {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.airship-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 1/1;
  background: var(--bg-secondary);
  border: 1px solid var(--border-glass);
  display: flex;
  align-items: center;
  justify-content: center;
}

.airship-visual img {
  max-width: 85%;
  max-height: 85%;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 0 18px rgba(2, 189, 203, 0.35)) drop-shadow(0 0 40px rgba(1, 120, 247, 0.15));
  animation: airshipFloat 6s ease-in-out infinite;
}

.airship-visual .placeholder-text {
  color: var(--text-muted);
  font-size: 14px;
}

.airship-specs {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.airship-spec {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
}

.airship-spec-label {
  font-size: 14px;
  color: var(--text-secondary);
}

.airship-spec-value {
  font-size: 16px;
  font-weight: 700;
  color: var(--accent-1);
}

.airship-description {
  margin-top: 20px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Applications */
.applications-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 40px;
}

.application-card {
  padding: 24px;
  text-align: center;
}

.application-card-icon {
  font-size: 36px;
  margin-bottom: 12px;
}

.application-card h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
}

.application-card p {
  font-size: 13px;
  color: var(--text-muted);
}

/* ============================================
   BENEFITS SECTION
   ============================================ */
.benefits {
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}

.benefits::after {
  content: '';
  position: absolute;
  top: 30%;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 500px;
  background: radial-gradient(ellipse, rgba(2, 189, 203, 0.08) 0%, rgba(1, 120, 247, 0.05) 40%, transparent 70%);
  pointer-events: none;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.benefit-card {
  padding: 36px 28px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.benefit-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 1px;
  background: var(--accent-gradient);
  opacity: 0;
  transition: var(--transition);
}

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

.benefit-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(2, 189, 203, 0.08);
  border: 1px solid rgba(2, 189, 203, 0.15);
  border-radius: var(--radius-md);
  font-size: 28px;
  transition: var(--transition);
}

.benefit-icon {
  box-shadow: 0 0 25px rgba(2, 189, 203, 0.15);
}

.benefit-card:hover .benefit-icon {
  background: rgba(2, 189, 203, 0.15);
  transform: scale(1.05);
  box-shadow: 0 4px 25px rgba(2, 189, 203, 0.3), 0 0 50px rgba(1, 120, 247, 0.12);
}

.benefit-card h4 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.benefit-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ============================================
   HOW IT WORKS
   ============================================ */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
  position: relative;
}

.steps-grid::before {
  content: '';
  position: absolute;
  top: 48px;
  left: 12.5%;
  right: 12.5%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-1), var(--accent-2));
  opacity: 0.3;
}

.step-card {
  text-align: center;
  position: relative;
  z-index: 1;
}

.step-number {
  width: 72px;
  height: 72px;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  border: 2px solid var(--border-glass);
  border-radius: 50%;
  font-size: 28px;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
  filter: drop-shadow(0 0 12px rgba(2, 189, 203, 0.4));
}

.step-number::after {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 50%;
  background: var(--accent-gradient);
  z-index: -1;
  opacity: 0.15;
}

.step-card h4 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}

.step-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================
   FAQ SECTION
   ============================================ */
.faq {
  background: var(--bg-secondary);
}

.faq-list {
  max-width: 800px;
  margin: 48px auto 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item.active {
  border-color: rgba(2, 189, 203, 0.2);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  width: 100%;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.faq-question:hover {
  color: var(--accent-1);
}

.faq-question-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  position: relative;
  margin-left: 16px;
}

.faq-question-icon::before,
.faq-question-icon::after {
  content: '';
  position: absolute;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: var(--transition);
}

.faq-question-icon::before {
  width: 16px;
  height: 2px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.faq-question-icon::after {
  width: 2px;
  height: 16px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.faq-item.active .faq-question-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================
   APPLICATION FORM
   ============================================ */
.form-section {
  position: relative;
  overflow: hidden;
}

.form-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(2, 189, 203, 0.12) 0%, rgba(1, 120, 247, 0.06) 40%, transparent 70%);
  pointer-events: none;
}

.form-wrapper {
  max-width: 600px;
  margin: 48px auto 0;
  position: relative;
  z-index: 1;
}

.form-card {
  padding: 40px;
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-input {
  width: 100%;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 15px;
  transition: var(--transition);
  outline: none;
}

.form-input:focus {
  border-color: var(--accent-1);
  background: rgba(2, 189, 203, 0.04);
  box-shadow: 0 0 0 3px rgba(2, 189, 203, 0.1);
}

.form-input::placeholder {
  color: var(--text-muted);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-select {
  width: 100%;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 15px;
  transition: var(--transition);
  outline: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='rgba(255,255,255,0.4)' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.form-select:focus {
  border-color: var(--accent-1);
  background-color: rgba(2, 189, 203, 0.04);
  box-shadow: 0 0 0 3px rgba(2, 189, 203, 0.1);
}

.form-select option {
  background: var(--bg-primary);
  color: var(--text-primary);
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-top: 24px;
  cursor: pointer;
}

.form-checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--accent-1);
  flex-shrink: 0;
}

.form-checkbox label {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
  cursor: pointer;
}

.form-checkbox label a {
  color: var(--accent-1);
  text-decoration: underline;
}

.form-submit {
  width: 100%;
  margin-top: 24px;
  padding: 16px;
  font-size: 16px;
}

.form-success {
  display: none;
  text-align: center;
  padding: 48px 32px;
}

.form-success.show {
  display: block;
  animation: fadeIn 0.6s ease;
}

.form-success-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 24px;
  background: var(--accent-gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  box-shadow: 0 0 30px rgba(2, 189, 203, 0.4), 0 0 60px rgba(1, 120, 247, 0.2);
}

.form-success h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 16px;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.form-success p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 400px;
  margin: 0 auto;
}

.form-error {
  display: none;
  padding: 12px 16px;
  background: rgba(255, 59, 48, 0.1);
  border: 1px solid rgba(255, 59, 48, 0.2);
  border-radius: var(--radius-sm);
  color: #ff6b6b;
  font-size: 14px;
  margin-top: 12px;
}

.form-error.show {
  display: block;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-glass);
  padding: 48px 0 24px;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand {
  max-width: 320px;
}

.footer-brand .header-logo {
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

.footer-socials {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

.footer-social {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  font-size: 18px;
}

.footer-social:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-1);
  color: var(--accent-1);
}

.footer-links h4 {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
  color: var(--text-secondary);
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 14px;
  color: var(--text-muted);
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--accent-1);
}

.footer-bottom {
  border-top: 1px solid var(--border-glass);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--text-muted);
}

.footer-disclaimer {
  max-width: 600px;
  text-align: right;
}

.footer-disclaimer p {
  font-size: 11px;
  line-height: 1.5;
}

/* ============================================
   SCROLL REVEAL ANIMATIONS
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* Counter animation */
.counter {
  display: inline-block;
}

/* ============================================
   KEYFRAMES
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes airshipFloat {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
  }
  25% {
    transform: translateY(-6px) rotate(0.3deg);
  }
  50% {
    transform: translateY(-10px) rotate(0deg);
  }
  75% {
    transform: translateY(-4px) rotate(-0.3deg);
  }
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .crowdinvesting-grid {
    grid-template-columns: 1fr 1fr;
  }

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

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

  .steps-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .steps-grid::before {
    display: none;
  }

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

  .airship-card.active {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-content {
    flex-wrap: wrap;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 60px;
  }

  .section {
    padding: 72px 0;
  }

  .hero-bg-logo {
    width: 50vh;
    height: 50vh;
    left: -20%;
    opacity: 0.03;
  }

  .hero-stats {
    gap: 24px;
    flex-wrap: wrap;
  }

  .header-nav {
    display: none;
  }

  .mobile-toggle {
    display: flex;
  }

  .header-actions {
    display: none;
  }

  /* Mobile menu overlay */
  .mobile-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 15, 0.98);
    backdrop-filter: blur(20px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 32px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
  }

  .mobile-menu.open {
    opacity: 1;
    visibility: visible;
  }

  .mobile-menu a {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-secondary);
    transition: var(--transition);
  }

  .mobile-menu a:hover {
    color: var(--text-primary);
  }

  .hero-title {
    font-size: clamp(28px, 7vw, 48px);
  }

  .hero-stats {
    gap: 24px;
    flex-wrap: wrap;
  }

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

  .crowd-compare {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .crowd-compare-vs {
    text-align: center;
  }

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

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

  .steps-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

  .project-header {
    flex-direction: column;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .form-card {
    padding: 24px;
  }

  .footer-content {
    flex-direction: column;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .footer-disclaimer {
    text-align: center;
  }



  .mobile-menu .lang-switcher-mobile {
    display: flex;
    gap: 2px;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    padding: 3px;
  }

  .mobile-menu .lang-switcher-mobile a {
    padding: 8px 14px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    border-radius: 6px;
  }

  .mobile-menu .lang-switcher-mobile a.active {
    background: var(--accent-gradient);
    color: #fff;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .header-logo {
    font-size: 15px;
    gap: 6px;
  }

  .header-logo .logo-icon {
    height: 28px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
  }

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

  .airship-tabs {
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
  }

  .airship-tab {
    flex-shrink: 0;
  }
}