/* ========================================
   DateCue — Landing Page Styles
   ======================================== */

:root {
  --coral: #E8734A;
  --coral-dark: #D4602F;
  --charcoal: #1E1E2E;
  --warm-white: #FAF7F2;
  --amber: #F5A623;
  --gray-100: #F5F5F5;
  --gray-200: #E8E8E8;
  --gray-500: #71717A;
  --gray-700: #3F3F46;
  --white: #FFFFFF;
  --radius: 8px;
  --radius-lg: 12px;
}

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

html {
  scroll-behavior: smooth;
}

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

/* Container */
.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Header ---- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--gray-200);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--charcoal);
}

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

.nav a {
  text-decoration: none;
  color: var(--gray-700);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.15s;
}

.nav a:hover {
  color: var(--coral);
}

.nav a.btn {
  color: var(--white);
  font-weight: 700;
}

.nav a.btn:hover {
  background: var(--coral-dark);
  border-color: var(--coral-dark);
  color: var(--white);
}

/* ---- Buttons ---- */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.15s;
  cursor: pointer;
  background: var(--coral);
  color: var(--white);
  border: 2px solid var(--coral);
}

.btn:hover {
  background: var(--coral-dark);
  border-color: var(--coral-dark);
}

.btn-outline {
  background: transparent;
  color: var(--coral);
}

.btn-outline:hover {
  background: var(--coral);
  color: var(--white);
}

.btn-sm {
  padding: 8px 20px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--white);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.05rem;
}

.btn-white {
  background: var(--white);
  color: var(--coral);
  border-color: var(--white);
}

.btn-white:hover {
  background: var(--warm-white);
  border-color: var(--warm-white);
}

/* ---- Hero ---- */
.hero {
  padding: 100px 0 80px;
  text-align: center;
}

.hero h1 {
  font-size: 3.2rem;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 1.2rem;
  color: var(--gray-500);
  max-width: 580px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---- Sections ---- */
.section {
  padding: 80px 0;
}

.section-alt {
  background: var(--warm-white);
}

.section h2 {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.section-sub {
  font-size: 1.1rem;
  color: var(--gray-500);
  text-align: center;
  max-width: 560px;
  margin: 0 auto 48px;
}

/* ---- Features Grid ---- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  background: var(--warm-white);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature-card p {
  color: var(--gray-500);
  font-size: 0.95rem;
}

/* ---- Steps ---- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  text-align: center;
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--coral);
  color: var(--white);
  font-weight: 700;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.step h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.step p {
  color: var(--gray-500);
  font-size: 0.95rem;
}

.step code {
  background: var(--gray-200);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.85rem;
}

/* ---- Use Cases ---- */
.usecases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.usecase-card {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 32px;
  background: var(--warm-white);
}

.usecase-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.usecase-card p {
  color: var(--gray-500);
  font-size: 0.95rem;
}

/* ---- Pricing ---- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}

.pricing-card {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  background: var(--white);
  text-align: center;
}

.pricing-card-featured {
  border: 2px solid var(--coral);
  position: relative;
}

.pricing-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.price {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 24px;
}

.price span {
  font-size: 1rem;
  font-weight: 400;
  color: var(--gray-500);
}

.pricing-card ul {
  list-style: none;
  margin-bottom: 28px;
  text-align: left;
}

.pricing-card li {
  padding: 8px 0;
  border-bottom: 1px solid var(--gray-100);
  font-size: 0.9rem;
  color: var(--gray-700);
  padding-left: 20px;
  position: relative;
}

.pricing-card li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  color: var(--coral);
  font-weight: 600;
}

.pricing-card .btn {
  width: 100%;
  text-align: center;
}

/* ---- FAQ ---- */
.faq-list {
  max-width: 720px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--gray-200);
}

.faq-item summary {
  padding: 20px 0;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--charcoal);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--coral);
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-item p {
  padding-bottom: 20px;
  color: var(--gray-500);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ---- CTA Section ---- */
.cta-section {
  background: var(--charcoal);
  color: var(--white);
  text-align: center;
}

.cta-section h2 {
  color: var(--white);
}

.cta-section .section-sub {
  color: var(--gray-500);
}

.cta-note {
  margin-top: 16px;
  font-size: 0.85rem;
  color: var(--gray-500);
}

/* ---- Footer ---- */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--gray-200);
}

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

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.95rem;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  text-decoration: none;
  color: var(--gray-500);
  font-size: 0.85rem;
  transition: color 0.15s;
}

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

.footer-studio {
  font-size: 0.8rem;
  color: var(--gray-500);
}

.footer-studio a {
  color: var(--gray-500);
  text-decoration: underline;
}

.footer-studio a:hover {
  color: var(--coral);
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.2rem;
  }

  .hero-sub {
    font-size: 1.05rem;
  }

  .nav {
    gap: 16px;
  }

  .nav a:not(.btn) {
    display: none;
  }

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

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

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }

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