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

:root {
  --bg-primary: #ffffff;
  --bg-secondary: #BFEDF9;
  --bg-card: #ffffff;
  --bg-card-hover: #e6f7fc;
  --text-primary: #031424;
  --text-secondary: #0A2A46;
  --text-muted: #4a7a8e;
  --accent: #F5191C;
  --accent-hover: #d41518;
  --accent-glow: rgba(245, 25, 28, 0.2);
  --border: #c8e4ef;
  --radius: 12px;
  --radius-lg: 20px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

[data-theme="dark"] {
  --bg-primary: #031424;
  --bg-secondary: #0A2A46;
  --bg-card: #0e1f30;
  --bg-card-hover: #152a3e;
  --text-primary: #BFEDF9;
  --text-secondary: #80c4d6;
  --text-muted: #4a8a9e;
  --accent: #F5191C;
  --accent-hover: #ff3538;
  --accent-glow: rgba(245, 25, 28, 0.3);
  --border: #0f3a5a;
}

[data-theme="dark"] .navbar {
  background: rgba(3, 20, 36, 0.85);
}

[data-theme="dark"] .client-logo {
  color: #80c4d6;
}

[data-theme="dark"] .feature-card {
  box-shadow: none;
}

[data-theme="dark"] .feature-card:hover {
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-label {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 48px;
  text-align: center;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 28px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-primary {
  background: var(--accent);
  color: #ffffff;
}

.btn-primary:hover {
  background: var(--accent-hover);
  box-shadow: 0 0 24px var(--accent-glow);
}

.btn-lg {
  padding: 16px 40px;
  font-size: 1.1rem;
  border-radius: 10px;
}

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

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

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s;
}

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

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

.nav-cta {
  padding: 8px 20px;
  font-size: 0.85rem;
}

/* Theme toggle */
.theme-toggle {
  position: relative;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 8px;
  transition: background 0.2s, border-color 0.2s;
}

.theme-toggle:hover {
  border-color: var(--accent);
}

.theme-icon {
  position: absolute;
  font-size: 1.1rem;
  color: var(--text-primary);
  transition: opacity 0.3s, transform 0.3s;
}

[data-theme="dark"] .theme-icon {
  color: #ffffff;
}

.theme-icon--dark {
  opacity: 0;
  transform: rotate(-90deg);
}

[data-theme="dark"] .theme-icon--light {
  opacity: 0;
  transform: rotate(90deg);
}

[data-theme="dark"] .theme-icon--dark {
  opacity: 1;
  transform: rotate(0deg);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s;
}

/* ============================================
   HERO
   ============================================ */
.hero {
  padding: 160px 0 80px;
  text-align: center;
}

.hero-headline {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.03em;
  max-width: 800px;
  margin: 0 auto 24px;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-cta {
  margin-bottom: 72px;
}

/* Social proof */
.social-proof {
  border-top: 1px solid var(--border);
  padding-top: 48px;
}

.social-proof-text {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 32px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 500;
}

/* Logo ticker */
.logo-ticker {
  overflow: hidden;
  position: relative;
  mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}

.logo-ticker-track {
  display: flex;
  gap: 48px;
  animation: ticker 30s linear infinite;
  width: max-content;
}

.client-logo {
  font-size: 1rem;
  font-weight: 600;
  color: #0A2A46;
  white-space: nowrap;
  opacity: 0.5;
  letter-spacing: 0.02em;
}

@keyframes ticker {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ============================================
   PROBLEM + TRANSITION
   ============================================ */
.problem {
  padding: 100px 0;
  background: var(--bg-primary);
}

.problem-headline {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
  color: var(--text-primary);
}

.problem-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  max-width: 800px;
  margin: 0 auto;
}

.problem-block h3 {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 12px;
}

.problem-block p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

@media (max-width: 768px) {
  .problem-body {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   FEATURES
   ============================================ */
.features {
  padding: 100px 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: 0 1px 3px rgba(3, 20, 36, 0.06);
  transition: background 0.25s, border-color 0.25s, transform 0.25s, box-shadow 0.25s;
}

.feature-card:hover {
  box-shadow: 0 6px 20px rgba(3, 20, 36, 0.1);
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent);
  transform: translateY(-4px);
}

.feature-icon {
  font-size: 1.6rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.35;
}

.feature-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================
   TESTIMONIALS
   ============================================ */
.testimonials {
  padding: 100px 0;
  background: var(--bg-secondary);
}

.testimonial-swiper {
  padding-bottom: 0;
}

.testimonial-swiper .swiper-slide {
  height: auto;
}

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.testimonial-card blockquote {
  font-size: 1.15rem;
  font-weight: 500;
  line-height: 1.7;
  margin-bottom: 28px;
  color: var(--text-primary);
  font-style: normal;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 28px;
}

.author-info {
  display: flex;
  flex-direction: column;
}

.author-info strong {
  font-size: 0.95rem;
}

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

.testimonial-metrics {
  display: flex;
  gap: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.metric {
  display: flex;
  flex-direction: column;
}

.metric-value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.metric-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 500;
}

/* Swiper pagination overrides */
.testimonial-swiper .swiper-pagination {
  position: static !important;
  margin-top: 32px;
}

.swiper-pagination-bullet {
  background: var(--text-muted) !important;
  opacity: 0.4;
  width: 8px;
  height: 8px;
}

.swiper-pagination-bullet-active {
  background: var(--accent) !important;
  opacity: 1;
}

/* ============================================
   TEAM
   ============================================ */
.team {
  padding: 100px 0;
}

.team-grid {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.team-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  text-align: center;
  width: 280px;
  transition: border-color 0.25s;
}

.team-card:hover {
  border-color: var(--accent);
}

.team-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: #031424;
  color: #BFEDF9;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
  margin: 0 auto 20px;
}

.team-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.team-role {
  font-size: 0.88rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 12px;
}

.team-bio {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.team-description {
  text-align: center;
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ============================================
   CTA
   ============================================ */
.cta-section {
  padding: 100px 0;
  background: var(--bg-secondary);
  text-align: center;
}

.cta-section h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.cta-section p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-logo {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-primary);
}

.footer-badge {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 4px 10px;
  border-radius: 6px;
}

.footer-right {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-right a {
  color: var(--text-secondary);
  transition: color 0.2s;
}

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

/* ============================================
   SIGNUP FORM
   ============================================ */
.signup-form {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.form-row {
  display: flex;
  gap: 12px;
  width: 100%;
}

.signup-form input {
  font-family: var(--font);
  font-size: 0.95rem;
  padding: 12px 16px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-primary);
  width: 100%;
  outline: none;
  transition: border-color 0.2s;
}

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

.signup-form input:focus {
  border-color: var(--accent);
}

.signup-form .btn {
  width: 100%;
}

.form-status {
  width: 100%;
  text-align: center;
  font-size: 0.85rem;
  margin-top: 4px;
  min-height: 1.3em;
}

.form-status.success {
  color: #16a34a;
}

.form-status.error {
  color: var(--accent);
}

.form-status.submitting {
  color: var(--text-muted);
}

@media (max-width: 479px) {
  .form-row {
    flex-direction: column;
  }
}

/* ============================================
   FADE-IN ANIMATIONS
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border);
    padding: 24px;
    gap: 20px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-cta {
    display: none;
  }

  .hero {
    padding: 120px 0 60px;
  }

  .hero-headline {
    font-size: 2rem;
  }

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

  .testimonial-metrics {
    flex-direction: column;
    gap: 16px;
  }

  .team-grid {
    flex-direction: column;
    align-items: center;
  }

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

@media (max-width: 479px) {
  .hero-headline {
    font-size: 1.65rem;
  }

  .hero-sub {
    font-size: 1rem;
  }

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

  .feature-card {
    padding: 24px 20px;
  }
}