/* =============================================
   Approvai — Landing Page Styles
   ============================================= */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --orange: #FF6B35;
  --orange-light: #FF8C5A;
  --orange-dark: #E55A24;
  --blue-deep: #0F1629;
  --blue-dark: #151D35;
  --blue-mid: #1E2A4A;
  --blue-light: #2A3A60;
  --accent: #4F9EFF;
  --accent-glow: rgba(79, 158, 255, 0.15);
  --text-primary: #F0F4FF;
  --text-secondary: #8A9BBF;
  --text-muted: #5C6E8A;
  --border: rgba(255, 255, 255, 0.08);
  --card-bg: rgba(255, 255, 255, 0.04);
  --card-border: rgba(255, 255, 255, 0.07);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.4);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--blue-deep);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* =============================================
   TYPOGRAPHY
   ============================================= */

.gradient-text {
  background: linear-gradient(135deg, var(--orange) 0%, #FFB347 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 16px;
  padding: 6px 14px;
  background: rgba(255, 107, 53, 0.1);
  border: 1px solid rgba(255, 107, 53, 0.25);
  border-radius: 100px;
}

.section-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 48px;
}

/* =============================================
   BUTTONS
   ============================================= */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  font-weight: 600;
  border: none;
  cursor: pointer;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--orange) 0%, var(--orange-dark) 100%);
  color: #fff;
  box-shadow: 0 0 0 0 rgba(255, 107, 53, 0.4);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--orange-light) 0%, var(--orange) 100%);
  box-shadow: 0 0 32px rgba(255, 107, 53, 0.35);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.05);
}

.btn-sm {
  font-size: 13px;
  padding: 8px 18px;
}

.btn-lg {
  font-size: 16px;
  padding: 14px 28px;
}

.btn-full {
  width: 100%;
  padding: 14px;
  font-size: 15px;
}

/* =============================================
   NAV
   ============================================= */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 0;
  background: rgba(15, 22, 41, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-icon {
  font-size: 20px;
  filter: drop-shadow(0 0 8px rgba(255, 107, 53, 0.6));
}

.logo-text {
  font-size: 18px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.03em;
}

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

.hero {
  position: relative;
  padding: 140px 0 100px;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(255, 107, 53, 0.08) 0%, transparent 65%);
  pointer-events: none;
}

.hero-glow {
  position: absolute;
  bottom: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 300px;
  background: radial-gradient(ellipse, rgba(79, 158, 255, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  text-align: center;
  max-width: 860px;
  margin: 0 auto;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 16px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 100px;
  margin-bottom: 32px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: #22c55e;
  border-radius: 50%;
  box-shadow: 0 0 8px rgba(34, 197, 94, 0.6);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero-headline {
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto 40px;
  line-height: 1.65;
}

.hero-sub strong {
  color: var(--text-primary);
  font-weight: 600;
}

.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}


/* =============================================
   PROBLEM
   ============================================= */

.problem {
  padding: 100px 0;
  background: var(--blue-dark);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.problem-card {
  padding: 32px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  transition: border-color 0.2s, transform 0.2s;
}

.problem-card:hover {
  border-color: rgba(255, 107, 53, 0.25);
  transform: translateY(-3px);
}

.problem-icon {
  font-size: 28px;
  margin-bottom: 16px;
}

.problem-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-primary);
}

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

/* =============================================
   HOW IT WORKS
   ============================================= */

.how-it-works {
  padding: 100px 0;
}

.steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 32px;
  align-items: flex-start;
  padding: 32px 0;
}

.step-connector {
  width: 2px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255,107,53,0.4), rgba(255,107,53,0.1));
  margin-left: 39px;
}

.step-number {
  font-size: 13px;
  font-weight: 700;
  color: var(--orange);
  background: rgba(255, 107, 53, 0.1);
  border: 1px solid rgba(255, 107, 53, 0.25);
  border-radius: 10px;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  letter-spacing: 0.05em;
}

.step-content h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
  padding-top: 10px;
}

.step-content p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 640px;
}

/* =============================================
   FEATURES
   ============================================= */

.features {
  padding: 100px 0;
  background: var(--blue-dark);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 20px;
}

.feature-card {
  padding: 28px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  transition: border-color 0.2s, transform 0.2s;
  grid-column: span 4;
}

.feature-card--large {
  grid-column: span 8;
}

.feature-card:hover {
  border-color: rgba(79, 158, 255, 0.25);
  transform: translateY(-3px);
}

.feature-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 4px 10px;
  background: rgba(79, 158, 255, 0.1);
  border: 1px solid rgba(79, 158, 255, 0.2);
  border-radius: 100px;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.feature-list {
  list-style: none;
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.feature-list li {
  font-size: 14px;
  color: var(--text-secondary);
  padding-left: 20px;
  position: relative;
}

.feature-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--orange);
  font-size: 12px;
}

/* =============================================
   WAITLIST
   ============================================= */

.waitlist {
  padding: 100px 0;
  background: var(--blue-dark);
  border-top: 1px solid var(--border);
}

.waitlist-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: flex-start;
}

.waitlist-title {
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.waitlist-sub {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
}

.waitlist-perks {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.waitlist-perks li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: var(--text-secondary);
}

.perk-icon {
  width: 22px;
  height: 22px;
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: #22c55e;
  flex-shrink: 0;
  margin-top: 2px;
  font-weight: 700;
}

.waitlist-form-wrap {
  position: relative;
}

.waitlist-form {
  padding: 36px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
}

.waitlist-form h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 24px;
}

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

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
  letter-spacing: 0.01em;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  font-family: inherit;
  font-size: 14px;
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  -webkit-appearance: none;
  appearance: none;
}

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238A9BBF' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
  cursor: pointer;
}

.form-group input:focus,
.form-group select:focus {
  border-color: rgba(255, 107, 53, 0.5);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

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

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

.form-note {
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
  margin-top: 12px;
}

.form-success {
  padding: 48px 36px;
  background: var(--card-bg);
  border: 1px solid rgba(34, 197, 94, 0.2);
  border-radius: var(--radius);
  text-align: center;
}

.success-icon {
  width: 56px;
  height: 56px;
  background: rgba(34, 197, 94, 0.1);
  border: 2px solid rgba(34, 197, 94, 0.4);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: #22c55e;
  font-weight: 700;
  margin: 0 auto 20px;
}

.form-success h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.form-success p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.65;
}

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

.footer {
  padding: 48px 0 32px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 10px;
  max-width: 280px;
}

.footer-links {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  padding-top: 4px;
}

.footer-links a {
  font-size: 14px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

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

/* =============================================
   RESPONSIVE
   ============================================= */

@media (max-width: 900px) {
  .features-grid {
    grid-template-columns: 1fr;
  }

  .feature-card,
  .feature-card--large {
    grid-column: span 1;
  }

  .waitlist-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

}

@media (max-width: 640px) {
  .hero {
    padding: 120px 0 80px;
  }

  .step {
    grid-template-columns: 48px 1fr;
    gap: 16px;
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

  .btn-lg {
    width: 100%;
    max-width: 320px;
    justify-content: center;
  }

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

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