/* ==========================================================================
   OVERSTREAM (POWERED BY FORASTREAM) - DESIGN SYSTEM & STYLES
   ========================================================================== */

:root {
  --bg-dark: #030712;
  --bg-surface: #0a0f1d;
  --bg-card: rgba(15, 23, 42, 0.75);
  --bg-card-hover: rgba(30, 41, 59, 0.85);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(56, 189, 248, 0.5);

  --primary: #38bdf8;
  --primary-glow: rgba(56, 189, 248, 0.35);
  --primary-gradient: linear-gradient(135deg, #0284c7 0%, #38bdf8 100%);
  --forastream-gradient: linear-gradient(135deg, #38bdf8 0%, #818cf8 50%, #c084fc 100%);

  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --radius-full: 9999px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(56, 189, 248, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 85% 75%, rgba(129, 140, 248, 0.06) 0%, transparent 45%);
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: all 0.2s ease;
}

a:hover {
  color: #7dd3fc;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ==========================================================================
   NAVIGATION BAR
   ========================================================================== */

.site-navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(3, 7, 18, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 16px 0;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, #0284c7, #38bdf8);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #030712;
  box-shadow: 0 0 15px var(--primary-glow);
}

.brand-text {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 900;
  letter-spacing: 1px;
  background: var(--forastream-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-sub {
  font-size: 10px;
  font-weight: 700;
  color: var(--text-dim);
  letter-spacing: 1.5px;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-link {
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s ease;
}

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

.btn-nav-trial {
  background: var(--primary-gradient);
  color: #030712 !important;
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 700;
  padding: 8px 20px;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 14px var(--primary-glow);
  transition: all 0.2s ease;
}

.btn-nav-trial:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(56, 189, 248, 0.5);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */

.hero-section {
  padding: 80px 0 60px;
  text-align: center;
  position: relative;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  padding: 6px 18px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.5px;
  margin-bottom: 24px;
  text-transform: uppercase;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--success);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--success);
  animation: pulse-ring 2s infinite;
}

@keyframes pulse-ring {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.4; }
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 20px;
}

.hero-title span {
  background: var(--forastream-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--text-muted);
  max-width: 760px;
  margin: 0 auto 36px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.btn-primary-large {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--primary-gradient);
  color: #030712;
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 800;
  padding: 14px 32px;
  border-radius: var(--radius-full);
  box-shadow: 0 8px 25px var(--primary-glow);
  cursor: pointer;
  border: none;
  transition: all 0.25s ease;
}

.btn-primary-large:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 35px rgba(56, 189, 248, 0.55);
}

.btn-outline-large {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-outline-large:hover {
  background: rgba(51, 65, 85, 0.8);
  border-color: rgba(255, 255, 255, 0.2);
}

.hero-metrics {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}

.metric-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.metric-num {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 800;
  color: var(--text-main);
}

.metric-lbl {
  font-size: 12px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ==========================================================================
   TRIAL REGISTRATION CARD & MODAL
   ========================================================================== */

.trial-section {
  padding: 60px 0;
}

.trial-card-container {
  max-width: 640px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1.5px solid rgba(56, 189, 248, 0.3);
  border-radius: var(--radius-xl);
  padding: 40px;
  backdrop-filter: blur(24px);
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.8), 0 0 30px rgba(56, 189, 248, 0.15);
  position: relative;
}

.trial-card-header {
  text-align: center;
  margin-bottom: 28px;
}

.trial-card-title {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 8px;
}

.trial-card-desc {
  font-size: 14px;
  color: var(--text-muted);
}

.form-field {
  margin-bottom: 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-field label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
}

.form-input {
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  color: #fff;
  font-family: var(--font-body);
  font-size: 15px;
  transition: all 0.2s ease;
}

.form-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 15px var(--primary-glow);
}

.form-feedback {
  font-size: 12px;
  color: var(--danger);
  min-height: 18px;
  margin-top: -8px;
  margin-bottom: 12px;
}

.btn-submit-trial {
  width: 100%;
  background: var(--primary-gradient);
  color: #030712;
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 800;
  padding: 14px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  box-shadow: 0 6px 20px var(--primary-glow);
  transition: all 0.2s ease;
}

.btn-submit-trial:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 25px rgba(56, 189, 248, 0.5);
}

/* Success Card After Registration */
.trial-success-box {
  display: flex;
  flex-direction: column;
  gap: 20px;
  text-align: center;
  animation: fade-in 0.4s ease;
}

@keyframes fade-in {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.token-pill-container {
  background: rgba(15, 23, 42, 0.95);
  border: 1.5px dashed var(--primary);
  border-radius: var(--radius-md);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.token-val {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 1.5px;
}

.btn-copy-token {
  align-self: center;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(56, 189, 248, 0.15);
  border: 1px solid rgba(56, 189, 248, 0.3);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-copy-token:hover {
  background: rgba(56, 189, 248, 0.25);
}

.download-trigger-box {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* ==========================================================================
   INTERACTIVE HOW-TO GUIDES SECTION
   ========================================================================== */

.howto-section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-tag {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1.5px;
  color: var(--primary);
  text-transform: uppercase;
  margin-bottom: 8px;
  display: block;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  letter-spacing: -0.5px;
}

.howto-tabs {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.tab-btn {
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 700;
  padding: 10px 20px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.2s ease;
}

.tab-btn:hover {
  color: #fff;
  background: rgba(51, 65, 85, 0.8);
}

.tab-btn.active {
  background: var(--primary);
  color: #030712;
  border-color: var(--primary);
  box-shadow: 0 4px 15px var(--primary-glow);
}

.howto-content-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 40px;
  backdrop-filter: blur(20px);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  align-items: center;
}

@media (max-width: 860px) {
  .howto-content-card {
    grid-template-columns: 1fr;
  }
}

.guide-step-number {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 800;
  color: var(--primary);
  background: rgba(56, 189, 248, 0.12);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  display: inline-block;
  margin-bottom: 12px;
}

.guide-step-title {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 14px;
}

.guide-step-text {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 18px;
}

.guide-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.guide-bullet-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
}

.guide-bullet-icon {
  color: var(--success);
  font-weight: 800;
}

.guide-preview-box {
  background: #000;
  border-radius: var(--radius-lg);
  border: 2px solid #1e293b;
  overflow: hidden;
  box-shadow: 0 15px 40px rgba(0,0,0,0.7);
  display: flex;
  flex-direction: column;
}

.preview-bar {
  background: #0f172a;
  padding: 8px 14px;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--text-dim);
}

.preview-body {
  padding: 24px;
  min-height: 240px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: linear-gradient(180deg, #090d16 0%, #030712 100%);
}

/* ==========================================================================
   FORASTREAM ECOSYSTEM & FEATURES
   ========================================================================== */

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

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all 0.25s ease;
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(56, 189, 248, 0.3);
  transform: translateY(-3px);
}

.feature-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(56, 189, 248, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  margin-bottom: 20px;
}

.feature-title {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-desc {
  font-size: 14px;
  color: var(--text-muted);
}

/* ==========================================================================
   FAQ SECTION
   ========================================================================== */

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.faq-question {
  padding: 18px 24px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.faq-answer {
  padding: 0 24px 18px;
  color: var(--text-muted);
  font-size: 14px;
  display: none;
}

.faq-item.open .faq-answer {
  display: block;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

.site-footer {
  border-top: 1px solid var(--border-subtle);
  background: rgba(3, 7, 18, 0.95);
  padding: 40px 0;
  margin-top: 80px;
  font-size: 13px;
  color: var(--text-dim);
}

.footer-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-links {
  display: flex;
  gap: 20px;
}