/* ============================================================
 * Warm Amber — Styles
 * All color values reference CSS custom properties from theme.css
 * ============================================================ */

@import url('theme.css');

/* ---- Reset & Base ---- */

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

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

body {
  margin: 0;
  padding: 0;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

::selection {
  background: var(--accent-glow);
  color: var(--text-primary);
}

/* ---- Typography ---- */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0;
}

.section-heading {
  font-size: 48px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 48px;
}

.section-heading-muted {
  color: var(--text-secondary);
}

/* ---- Navigation ---- */

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 56px;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  background-color: var(--nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: background-color var(--transition-default),
              border-color var(--transition-default);
}

.site-nav.scrolled {
  background-color: var(--nav-bg-scrolled);
  border-bottom-color: var(--nav-border);
}

.nav-wordmark {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 18px;
  color: var(--text-primary);
  text-decoration: none;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-logo-img {
  height: 24px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  font-size: 14px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
  font-weight: 500;
}

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

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

.nav-login {
  font-size: 14px;
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
}

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

.nav-cta {
  font-size: 14px;
  font-weight: 600;
  padding: 8px 20px;
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-full);
  color: var(--accent-primary);
  background: transparent;
  text-decoration: none;
  transition: border-color var(--transition-fast),
              background-color var(--transition-fast),
              color var(--transition-fast);
  cursor: pointer;
}

.nav-cta:hover {
  background-color: var(--accent-primary);
  color: var(--text-on-accent);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
  z-index: 1010;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--text-primary);
  transition: transform var(--transition-default), opacity var(--transition-default);
}

.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile overlay */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background-color: var(--bg-primary);
  z-index: 1005;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  opacity: 0;
  transition: opacity var(--transition-default);
  pointer-events: none;
}

.mobile-menu.open {
  opacity: 1;
  pointer-events: all;
}

.mobile-menu a {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.mobile-menu a.mobile-cta {
  color: var(--accent-primary);
}

/* ---- Sections ---- */

.section {
  padding: var(--section-padding-y) 24px;
}

.section-alt {
  background-color: var(--bg-secondary);
}

.section-inner {
  max-width: 1120px;
  margin: 0 auto;
}

/* ---- Shared Section Layouts ---- */

.content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.section-text .section-heading {
  text-align: left;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 20px;
  color: var(--text-secondary);
  text-align: left;
  margin-bottom: 24px;
  font-weight: 400;
}

/* ---- Hero Section ---- */

.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 56px 24px 80px;
  background-color: var(--bg-primary);
}

/* Typewriter */
.typewriter {
  font-family: var(--font-mono);
  font-size: 40px;
  font-weight: 600;
  color: var(--accent-primary);
  margin-bottom: 24px;
  min-height: 56px;
  opacity: 0;
  animation: fadeInUp 0.6s ease forwards;
  animation-delay: 0.1s;
}

.typewriter-text {
  letter-spacing: 0.04em;
}

.typewriter-cursor {
  font-weight: 300;
  animation: blink-cursor 0.75s step-end infinite;
}

@keyframes blink-cursor {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.hero-headline {
  font-size: 72px;
  font-weight: 700;
  line-height: 1.05;
  margin-bottom: 24px;
  opacity: 0;
  transform: translateY(16px);
  animation: fadeInUp 0.6s ease forwards;
  animation-delay: 1.0s;
}

.hero-sub {
  font-size: 20px;
  color: var(--text-secondary);
  max-width: 540px;
  margin: 0 auto 48px;
  line-height: 1.6;
  font-weight: 400;
  opacity: 0;
  transform: translateY(16px);
  animation: fadeInUp 0.6s ease forwards;
  animation-delay: 1.2s;
}

.hero-ctas {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 20px;
  opacity: 0;
  transform: translateY(16px);
  animation: fadeInUp 0.6s ease forwards;
  animation-delay: 1.4s;
}

.pricing-card-note {
  font-size: 13px;
  color: var(--text-tertiary);
  margin-top: 12px;
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---- Buttons ---- */

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 16px;
  font-weight: 600;
  font-family: var(--font-body);
  background-color: var(--accent-primary);
  color: var(--text-on-accent);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  text-decoration: none;
  transition: background-color var(--transition-fast),
              transform var(--transition-fast);
}

.btn-primary:hover {
  background-color: var(--accent-primary-hover);
  transform: translateY(-1px);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 16px;
  font-weight: 600;
  font-family: var(--font-body);
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-full);
  cursor: pointer;
  text-decoration: none;
  transition: border-color var(--transition-fast),
              background-color var(--transition-fast),
              transform var(--transition-fast);
}

.btn-ghost:hover {
  border-color: var(--text-secondary);
  background-color: var(--bg-surface);
  transform: translateY(-1px);
}

/* ---- How It Works ---- */

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
  text-align: center;
}

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

.step-icon {
  width: 80px;
  height: 80px;
  margin-bottom: 24px;
}

.step-icon svg {
  width: 100%;
  height: 100%;
  stroke: var(--accent-primary);
  fill: none;
  stroke-width: 1.5;
}

.step-label {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.step-desc {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 300px;
  line-height: 1.6;
}

/* ---- Check-In Demo Section ---- */

/* Phone Mockup */
.phone-frame {
  width: 300px;
  margin: 0 auto;
  border: 2px solid var(--border-default);
  border-radius: 36px;
  padding: 24px 24px;
  background-color: var(--bg-phone);
  position: relative;
  min-height: 480px;
}

.phone-frame::before {
  content: '';
  display: block;
  width: 100px;
  height: 4px;
  background-color: var(--border-default);
  border-radius: var(--radius-full);
  margin: 0 auto 20px;
}

.phone-screen {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 380px;
  padding-top: 24px;
}

.chat-conversation {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.chat-bubble {
  max-width: 85%;
  padding: 12px 16px;
  border-radius: 18px;
  font-size: 14px;
  line-height: 1.5;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.chat-bubble.visible {
  opacity: 1;
  transform: translateY(0);
}

.chat-bubble.system {
  align-self: flex-start;
  background-color: var(--bg-bubble-system);
  color: var(--text-bubble-system);
  border-bottom-left-radius: 4px;
}

.chat-bubble.user {
  align-self: flex-end;
  background-color: var(--bg-bubble-user);
  color: var(--text-bubble-user);
  border-bottom-right-radius: 4px;
  font-weight: 600;
}

.chat-sender {
  font-size: 11px;
  font-weight: 700;
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.chat-sender.system-sender {
  color: var(--accent-primary);
}

.chat-sender.user-sender {
  color: var(--text-on-accent);
  opacity: 0.7;
}

.chat-verified {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.chat-verified.visible {
  opacity: 1;
  transform: translateY(0);
}

.chat-verified svg {
  width: 20px;
  height: 20px;
  stroke: var(--accent-success);
  fill: none;
}

.chat-verified span {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent-success);
  font-weight: 600;
}

/* Mode Toggle */
.mode-toggle-container {
  display: flex;
  justify-content: center;
  margin-top: 20px;
}

.mode-toggle {
  display: inline-flex;
  align-items: center;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
}

.mode-option {
  padding: 10px 24px;
  font-size: 14px;
  font-weight: 600;
  font-family: var(--font-body);
  color: var(--text-secondary);
  background: transparent;
  border: none;
  cursor: pointer;
  position: relative;
  z-index: 1;
  transition: color var(--transition-fast);
}

.mode-option.active {
  color: var(--text-on-accent);
}

.mode-slider {
  position: absolute;
  top: 3px;
  bottom: 3px;
  left: 3px;
  width: calc(50% - 3px);
  background-color: var(--accent-primary);
  border-radius: var(--radius-full);
  transition: transform var(--transition-default);
  z-index: 0;
}

.mode-slider.stealth {
  transform: translateX(100%);
}

/* Stat Cards */
.stat-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.stat-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-top: 2px solid var(--accent-primary);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: border-color var(--transition-fast),
              background-color var(--transition-fast);
}

.stat-card:hover {
  border-color: var(--border-hover);
  border-top-color: var(--accent-primary-hover);
  background-color: var(--bg-surface-hover);
}

.stat-card-icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  color: var(--accent-primary);
}

.stat-card-icon svg {
  width: 100%;
  height: 100%;
}

.stat-card-text {
  flex: 1;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.stat-label {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* ---- Messages Section ---- */

/* Message Card Stack */
.message-stack {
  position: relative;
  padding: 40px 20px;
}

.message-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-left: 4px solid var(--accent-primary);
  border-radius: var(--radius-lg);
  padding: 28px;
  position: relative;
  transition: transform var(--transition-default);
}

.message-card-3 {
  position: absolute;
  top: 56px;
  left: 40px;
  right: 0;
  opacity: 0.3;
  transform: rotate(2deg) translateY(8px);
  z-index: 1;
}

.message-card-2 {
  position: absolute;
  top: 48px;
  left: 30px;
  right: 10px;
  opacity: 0.5;
  transform: rotate(1deg) translateY(4px);
  z-index: 2;
}

.message-card-1 {
  position: relative;
  z-index: 3;
}

.msg-to {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

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

.msg-subject {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-default);
}

.msg-preview {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

.msg-attachments {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.msg-attachment {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
  background-color: var(--bg-primary);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-default);
  width: fit-content;
}

.msg-delay {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-primary);
}

/* ---- Feature Grid ---- */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.feature-grid.cols-3 {
  grid-template-columns: repeat(3, 1fr);
}

.feature-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 32px;
  text-align: left;
  transition: border-color var(--transition-fast),
              background-color var(--transition-fast);
}

.feature-card.accent-left {
  border-left: 4px solid var(--accent-primary);
}

.feature-card:hover {
  border-color: var(--border-hover);
  background-color: var(--bg-surface-hover);
}

.feature-card.accent-left:hover {
  border-left-color: var(--accent-primary-hover);
}

.feature-card.accent-top {
  border-top: 4px solid var(--accent-primary);
}

.feature-card.accent-top:hover {
  border-top-color: var(--accent-primary-hover);
}

.feature-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.feature-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.feature-icon svg {
  width: 100%;
  height: 100%;
  stroke: var(--accent-primary);
  fill: none;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.feature-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}

.feature-desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ---- Pricing Section ---- */

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 800px;
  margin: 0 auto;
}

.pricing-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
}

.pricing-card.premium {
  border-color: var(--border-accent);
  box-shadow: 0 0 30px var(--accent-glow);
}

.pricing-tier {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.pricing-price {
  font-size: 48px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.pricing-price span {
  font-size: 16px;
  font-weight: 400;
  color: var(--text-secondary);
}

.pricing-divider {
  height: 1px;
  background-color: var(--border-default);
  margin: 24px 0;
}

.pricing-features {
  list-style: none;
  padding: 0;
  margin: 0 0 32px;
  flex-grow: 1;
}

.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 8px 0;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.pricing-features .check {
  color: var(--accent-success);
  font-size: 16px;
  flex-shrink: 0;
  margin-top: 2px;
}

.pricing-features .dash {
  color: var(--text-tertiary);
  font-size: 16px;
  flex-shrink: 0;
  margin-top: 2px;
}

.pricing-card .btn-primary,
.pricing-card .btn-ghost {
  width: 100%;
  justify-content: center;
}

/* ---- FAQ Section ---- */

.faq-container {
  max-width: 720px;
  margin: 0 auto;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

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

.faq-item:last-child {
  border-bottom: none;
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  background: transparent;
  border: none;
  width: 100%;
  text-align: left;
  font-family: var(--font-body);
  transition: color var(--transition-fast);
}

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

.faq-icon {
  font-size: 20px;
  color: var(--text-tertiary);
  transition: transform var(--transition-default);
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-default);
}

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

/* ---- Contact Section ---- */

.contact-section {
  text-align: center;
}

.contact-section .section-heading {
  margin-bottom: 24px;
}

.contact-email {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  color: var(--accent-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
  margin-bottom: 32px;
}

.contact-email:hover {
  color: var(--accent-primary-hover);
}

.contact-email svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.5;
}

.social-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
}

.social-links a {
  color: var(--text-tertiary);
  transition: color var(--transition-fast);
}

.social-links a:hover {
  color: var(--accent-primary);
}

.social-links svg {
  width: 24px;
  height: 24px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.5;
}

/* ---- Footer ---- */

.site-footer {
  border-top: 1px solid var(--border-default);
  padding: 64px 24px 0;
  background-color: var(--bg-primary);
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  max-width: 1120px;
  margin: 0 auto;
  padding-bottom: 48px;
}

.footer-brand {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 18px;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.footer-tagline {
  font-size: 14px;
  color: var(--text-tertiary);
}

.footer-col-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 10px;
}

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

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

.footer-bottom {
  border-top: 1px solid var(--border-default);
  max-width: 1120px;
  margin: 0 auto;
  padding: 24px 0;
  text-align: center;
}

.footer-copy {
  font-size: 13px;
  color: var(--text-tertiary);
}

/* ---- Responsive ---- */

@media (max-width: 1023px) {
  .section-heading {
    font-size: 36px;
  }

  .hero-headline {
    font-size: 48px;
  }

  .steps-grid {
    grid-template-columns: 1fr;
    gap: 48px;
    max-width: 400px;
    margin: 0 auto;
  }

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

  #sms-demo .section-text {
    order: 2;
  }

  .section-text .section-heading,
  .section-subtitle {
    text-align: center;
  }

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

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 420px;
  }

  .footer-grid {
    flex-direction: column;
    gap: 32px;
  }
}

@media (max-width: 767px) {
  :root {
    --section-padding-y: 80px;
  }

  .section-heading {
    font-size: 30px;
  }

  .hero {
    padding: 56px 20px 60px;
  }

  .hero-headline {
    font-size: 36px;
  }

  .hero-sub {
    font-size: 17px;
  }

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

  .nav-links {
    display: none;
  }

  .nav-actions {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .mobile-menu {
    display: flex;
  }

  .phone-frame {
    width: 260px;
    min-height: 420px;
  }

  .stat-cards {
    grid-template-columns: 1fr;
  }

  .pricing-price {
    font-size: 40px;
  }

  .faq-question {
    font-size: 15px;
    padding: 16px 20px;
  }

  .faq-answer-inner {
    padding: 0 20px 16px;
    font-size: 14px;
  }

  .message-stack {
    padding: 20px 0;
  }
}

/* ---- Utility ---- */

.text-center,
.text-center .section-heading,
.text-center .section-subtitle {
  text-align: center;
}