/* ============================================
   Tere Booking — Landing Page Styles
   Mobile-first | Inter
   ============================================ */

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

:root {
  /* Brand — Blue */
  --blue: #2563EB;
  --blue-dark: #1D4ED8;
  --blue-mid: #3B82F6;
  --blue-light: #DBEAFE;
  /* Brand — Emerald */
  --emerald: #10B981;
  --emerald-dark: #059669;
  --emerald-light: #34D399;
  --emerald-bg: #D1FAE5;
  /* Slate */
  --slate-50: #F8FAFC;
  --slate-100: #F1F5F9;
  --slate-200: #E2E8F0;
  --slate-400: #94A3B8;
  --slate-500: #64748B;
  --slate-600: #475569;
  --slate-700: #334155;
  --slate-800: #1E293B;
  --slate-900: #0F172A;
  --white: #FFFFFF;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --section-spacing: 4rem;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: 80px;
}

body {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--slate-800);
  background-color: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
  color: var(--blue-dark);
}

/* --- Typography --- */
h1, h2, h3, h4 {
  line-height: 1.2;
  color: var(--slate-900);
  font-weight: 700;
}

h1 {
  font-size: 2.25rem;
}

h2 {
  font-size: 1.75rem;
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1rem;
  color: var(--slate-600);
}

/* --- Layout --- */
.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

section {
  padding: var(--section-spacing) 0;
}

/* --- Header / Nav --- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--slate-200);
}

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

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--slate-900);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-img {
  height: 46px;
  width: auto;
}

.logo span {
  color: var(--blue);
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--slate-600);
  transition: color 0.2s;
}

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

.nav .btn-nav {
  color: var(--white);
}

.nav .btn-nav:hover {
  color: var(--white);
}

.nav-mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--slate-700);
  margin: 5px 0;
  transition: all 0.3s;
}

/* --- Badge --- */
.badge {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 100px;
  background: var(--blue-light);
  color: var(--blue);
  margin-bottom: 1.25rem;
}


.hero-badges {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
  margin-bottom: 1rem;
}

.hero-badges .badge {
  margin-bottom: 0;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-primary {
  background: var(--blue);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--blue-dark);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--blue);
  border: 1.5px solid var(--blue);
}

.btn-outline:hover {
  background: var(--blue-light);
}

.btn-nav {
  padding: 0.5rem 1.15rem;
  font-size: 0.85rem;
}

/* --- Hero --- */
.hero {
  padding: calc(var(--section-spacing) + 1rem) 0 0;
  text-align: center;
  background: linear-gradient(180deg, var(--white) 0%, var(--slate-50) 100%);
}

.hero h1 {
  font-size: 2.5rem;
  max-width: 820px;
  margin: 0 auto 1.25rem;
}

.hero .subtitle {
  font-size: 1.1rem;
  max-width: 720px;
  margin: 0 auto 2rem;
  color: var(--slate-500);
}

/* --- Hero Image --- */
.hero-image {
  max-width: 900px;
  margin: 2.5rem auto 0;
  border-radius: var(--radius);
  overflow: hidden;
}

.hero-image img {
  width: 100%;
  height: 320px;
  object-fit: cover;
}

/* --- Photo Break --- */
.photo-break {
  width: 100%;
  overflow: hidden;
}

.photo-break img {
  width: 100%;
  height: 280px;
  object-fit: cover;
}

/* --- Waitlist Form --- */
.waitlist-form {
  display: flex;
  gap: 0.5rem;
  max-width: 440px;
  margin: 0 auto;
}

.waitlist-form input[type="email"] {
  flex: 1;
  padding: 0.75rem 1rem;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.95rem;
  border: 1.5px solid var(--slate-200);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color 0.2s;
}

.waitlist-form input[type="email"]:focus {
  border-color: var(--blue);
}

.waitlist-form .btn {
  white-space: nowrap;
}

.form-message {
  margin-top: 0.75rem;
  font-size: 0.85rem;
  min-height: 1.25rem;
}

.form-message.success {
  color: var(--emerald-dark);
}

.form-message.error {
  color: #DC2626;
}

/* --- Section Problem --- */
.problem {
  background: var(--slate-50);
}

.section-title {
  text-align: center;
  margin-bottom: 2.5rem;
}

.section-title h1,
.section-title h2 {
  margin-bottom: 0.5rem;
}

.section-title p {
  max-width: 560px;
  margin: 0 auto;
}

.cards-grid {
  display: grid;
  gap: 1.25rem;
}

.card {
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: box-shadow 0.2s;
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.card-icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  background: var(--blue-light);
}

.card h3 {
  color: var(--slate-900);
  margin-bottom: 0;
}

.card p {
  font-size: 0.92rem;
  margin-bottom: 0;
}

/* --- Section How It Works --- */
.how-it-works {
  background: var(--white);
}

.hiw-timeline {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  max-width: 480px;
  margin: 0 auto;
}

.hiw-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
}

.hiw-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--blue-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
  border: none;
  position: relative;
  z-index: 2;
}

.hiw-label {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--slate-900);
  margin-bottom: 0.75rem;
}

.hiw-content {
  width: 100%;
}

.hiw-step + .hiw-step::before {
  content: '';
  position: absolute;
  top: -2.5rem;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 2.5rem;
  background: linear-gradient(to bottom, var(--blue), var(--emerald-light));
  z-index: 1;
}

/* Bubbles */
.hiw-bubble {
  padding: 0.85rem 1.1rem;
  border-radius: 16px;
  font-size: 0.9rem;
  line-height: 1.5;
  position: relative;
  text-align: left;
  max-width: 360px;
  margin: 0 auto;
}

.hiw-bubble-sender {
  display: block;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.3rem;
}

.hiw-bubble--client {
  background: var(--blue);
  color: var(--white);
  border-bottom-left-radius: 4px;
  margin-right: auto;
  margin-left: 1rem;
}

.hiw-bubble--client .hiw-bubble-sender {
  color: rgba(255, 255, 255, 0.7);
}

.hiw-bubble--reply {
  background: var(--slate-100);
  color: var(--slate-800);
  border-bottom-right-radius: 4px;
  margin-left: auto;
  margin-right: 1rem;
}

.hiw-bubble--reply .hiw-bubble-sender {
  color: var(--blue);
}

/* System analysis step */
.hiw-system {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem;
  background: var(--blue-light);
  border-radius: var(--radius);
  max-width: 360px;
  margin: 0 auto;
}

.hiw-system p {
  font-size: 0.85rem;
  color: var(--slate-700);
  margin-bottom: 0;
  text-align: center;
}

.hiw-system-dots {
  display: flex;
  gap: 6px;
}

.hiw-system-dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--blue);
  animation: hiw-pulse 1.4s ease-in-out infinite;
}

.hiw-system-dots span:nth-child(2) {
  animation-delay: 0.2s;
}

.hiw-system-dots span:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes hiw-pulse {
  0%, 100% { opacity: 0.3; transform: scale(0.8); }
  50% { opacity: 1; transform: scale(1); }
}

/* Action step */
.hiw-action {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.hiw-send-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.5rem 1.25rem;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--blue);
  background: var(--blue-light);
  border: none;
  border-radius: 100px;
  cursor: default;
  pointer-events: none;
}

.hiw-caption {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--emerald);
}

/* Desktop: horizontal timeline */
@media (min-width: 768px) {
  .hiw-timeline {
    flex-direction: row;
    max-width: 100%;
    gap: 1rem;
    align-items: flex-start;
  }

  .hiw-step {
    flex: 1;
    min-width: 0;
  }

  .hiw-step + .hiw-step::before {
    display: none;
  }

  .hiw-step::after {
    content: '';
    position: absolute;
    top: 24px;
    right: -50%;
    width: 100%;
    height: 2px;
    background: linear-gradient(to right, var(--blue), var(--emerald-light));
    z-index: 1;
  }

  .hiw-step:last-child::after {
    display: none;
  }

  .hiw-bubble {
    max-width: 100%;
    margin-left: 0;
    margin-right: 0;
  }

  .hiw-bubble--client {
    margin-left: 0;
    margin-right: 0;
  }

  .hiw-bubble--reply {
    margin-left: 0;
    margin-right: 0;
  }
}

/* --- Section Solution — Feature Rows (Primary) --- */
.feature-row {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2.5rem;
  max-width: 820px;
  margin: 0 auto var(--section-spacing);
}

.feature-text {
  flex: 1;
}

.feature-text .badge {
  margin-bottom: 1rem;
}

.feature-text h3 {
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
}

.feature-text p {
  font-size: 1rem;
  color: var(--slate-600);
  margin-bottom: 0;
}

/* Feature icons row */
.feature-icons {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.feature-icon-item {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--slate-100);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--slate-500);
  transition: color 0.2s, background 0.2s;
}

.feature-icon-item:hover {
  background: var(--blue-light);
  color: var(--blue);
}

.feature-icon-item svg {
  width: 20px;
  height: 20px;
}


/* --- Phone Frame (iPhone 16e mockup) --- */
.phone-frame {
  width: 280px;
  min-width: 280px;
  background: #1A1A2E;
  border-radius: 40px;
  padding: 8px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
  position: relative;
}

.phone-screen {
  border-radius: 33px;
  overflow: hidden;
  aspect-ratio: 9 / 17;
  background: var(--white);
  display: flex;
  flex-direction: column;
}

/* Notch */
.phone-notch {
  width: 140px;
  height: 24px;
  background: #1A1A2E;
  border-radius: 0 0 16px 16px;
  margin: 0 auto;
  flex-shrink: 0;
}

.phone-safe-bottom {
  padding: 8px 0 6px;
  flex-shrink: 0;
  display: flex;
  justify-content: center;
}

.phone-home-indicator {
  width: 120px;
  height: 4px;
  background: var(--slate-200);
  border-radius: 100px;
}

/* Screenshot area */
.phone-content {
  flex: 1;
  overflow: hidden;
}

.phone-content img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* --- Feature Grid (Secondary 2×2) --- */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: 1rem;
}

.feature-card {
  background: #F8FAFB;
  border: 1px solid var(--slate-200);
  border-radius: 16px;
  padding: 24px;
  transition: box-shadow 0.2s, border-color 0.2s;
}

.feature-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--blue);
}

.feature-card-icon {
  width: 40px;
  height: 40px;
  color: var(--blue);
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.feature-card p {
  font-size: 0.875rem;
  color: var(--slate-500);
  margin-bottom: 0;
  line-height: 1.6;
}

/* --- Coming Soon --- */
.coming-soon {
  background: linear-gradient(135deg, var(--blue) 0%, var(--emerald-light) 100%);
  padding: calc(var(--section-spacing) / 2) 0;
  text-align: center;
}

.coming-soon p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0;
}

.coming-soon span {
  color: var(--white);
}

/* --- Section Founder --- */
.founder {
  background: var(--slate-50);
}

.founder-content {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.founder-photo {
  width: 120px;
  height: 120px;
  min-width: 120px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--blue-light);
}

.founder-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.founder-text p {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--slate-700);
}

.founder-name {
  font-weight: 700;
  color: var(--slate-900);
  margin-top: 0.5rem;
  display: block;
}

/* --- CTA Bottom --- */
.cta-bottom {
  text-align: center;
  background: var(--white);
}

.cta-bottom h2 {
  max-width: 560px;
  margin: 0 auto 0.75rem;
}

.cta-bottom .subtitle {
  max-width: 500px;
  margin: 0 auto 2rem;
  color: var(--slate-500);
}

/* --- Footer --- */
.footer {
  background: var(--slate-900);
  color: var(--slate-400);
  padding: 2.5rem 0;
  font-size: 0.85rem;
}

.footer .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  color: var(--slate-400);
  font-weight: 500;
}

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

.footer-copy {
  color: var(--slate-500);
}

/* --- Contact Page --- */
.contact-section {
  padding: var(--section-spacing) 0;
}

.contact-form {
  max-width: 520px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--slate-700);
  margin-bottom: 0.35rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.95rem;
  border: 1.5px solid var(--slate-200);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color 0.2s;
  background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--blue);
}

.form-group textarea {
  resize: vertical;
  min-height: 140px;
}

/* --- Contact Alternative --- */
.contact-alt {
  max-width: 520px;
  margin: 2rem auto 0;
  text-align: center;
  padding: 1.75rem;
  background: linear-gradient(135deg, var(--blue-light) 0%, var(--emerald-bg) 100%);
  border-radius: var(--radius);
}

.contact-alt p {
  margin-bottom: 0.25rem;
  font-size: 0.95rem;
  color: var(--slate-700);
}

.contact-alt a {
  font-weight: 600;
}

.contact-response-time {
  font-size: 0.85rem !important;
  color: var(--slate-600) !important;
}

/* --- Legal Page --- */
.legal-hero {
  padding: calc(var(--section-spacing) + 1rem) 0 var(--section-spacing);
  text-align: center;
}

.legal-section {
  padding: 0 0 var(--section-spacing);
}

.legal-content {
  max-width: 720px;
  margin: 0 auto;
}

.legal-card {
  padding-bottom: 1.75rem;
  margin-bottom: 1.75rem;
  border-bottom: 1px solid var(--slate-200);
}

.legal-card:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.legal-card h2 {
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
  color: var(--blue);
}

.legal-content p,
.legal-content li {
  font-size: 0.92rem;
  color: var(--slate-600);
  line-height: 1.7;
}

.legal-card p:last-child {
  margin-bottom: 0;
}

.legal-content ul {
  list-style: disc;
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

/* --- FAQ Hero --- */
.faq-hero {
  padding: calc(var(--section-spacing) + 1rem) 0 var(--section-spacing);
  text-align: center;
}

.faq-hero-content {
  max-width: 600px;
  margin: 0 auto;
}

.faq-hero h1 {
  font-size: 2.25rem;
  margin-bottom: 0.75rem;
}

.faq-subtitle {
  font-size: 1.05rem;
  color: var(--slate-500);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.faq-search-wrap {
  position: relative;
  max-width: 480px;
  margin: 0 auto;
}

.faq-search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--slate-400);
  pointer-events: none;
}

.faq-search-wrap input {
  width: 100%;
  padding: 0.85rem 1rem 0.85rem 2.75rem;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.95rem;
  border: 1.5px solid var(--slate-200);
  border-radius: 100px;
  outline: none;
  background: var(--white);
  box-shadow: var(--shadow);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.faq-search-wrap input:focus {
  border-color: var(--blue);
  box-shadow: var(--shadow-md), 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* --- FAQ Page --- */
.faq-section {
  padding: 0 0 var(--section-spacing);
}

.faq-content {
  max-width: 720px;
  margin: 0 auto;
}

.faq-no-results {
  text-align: center;
  font-size: 1rem;
  color: var(--slate-500);
  padding: 2rem 0;
}

.faq-category {
  margin-bottom: 2.5rem;
}

.faq-category h2 {
  font-size: 1.15rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--blue);
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--blue-light);
}

.faq-item {
  border: 1px solid var(--slate-200);
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
  background: var(--white);
  transition: box-shadow 0.2s, border-color 0.2s;
}

.faq-item:hover {
  box-shadow: var(--shadow);
  border-color: var(--slate-200);
}

.faq-item[open] {
  box-shadow: var(--shadow-md);
  border-color: var(--blue);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 1.25rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--slate-900);
  cursor: pointer;
  list-style: none;
  user-select: none;
  line-height: 1.4;
}

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

.faq-item summary::after {
  content: '';
  width: 10px;
  height: 10px;
  min-width: 10px;
  border-right: 2px solid var(--slate-400);
  border-bottom: 2px solid var(--slate-400);
  transform: rotate(45deg);
  transition: transform 0.25s ease;
}

.faq-item[open] summary::after {
  transform: rotate(-135deg);
}

.faq-item[open] summary {
  color: var(--blue);
}

.faq-answer {
  padding: 0 1.25rem 1.25rem;
  animation: faq-slide-down 0.25s ease;
}

.faq-answer p {
  font-size: 0.92rem;
  color: var(--slate-600);
  line-height: 1.7;
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

@keyframes faq-slide-down {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

.faq-item[hidden] {
  display: none;
}

.faq-category[hidden] {
  display: none;
}

.faq-contact {
  margin-top: 2.5rem;
  padding: 1.75rem;
  background: linear-gradient(135deg, var(--blue-light) 0%, var(--emerald-bg) 100%);
  border-radius: var(--radius);
  text-align: center;
}

.faq-contact p {
  margin-bottom: 0;
  font-size: 0.95rem;
  color: var(--slate-700);
}

/* --- Responsive --- */
@media (min-width: 640px) {
  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  h1 {
    font-size: 2.75rem;
  }

  .hero h1 {
    font-size: 3rem;
  }

  .hero-image img {
    height: 400px;
  }

  .photo-break img {
    height: 360px;
  }
}

@media (min-width: 768px) {
  .problem .cards-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .feature-row {
    flex-direction: row;
    align-items: center;
  }

  .feature-row--reverse {
    flex-direction: row-reverse;
  }
}

@media (min-width: 1024px) {
  :root {
    --section-spacing: 5rem;
  }

  .feature-row {
    gap: 4rem;
  }

  .phone-frame {
    width: 300px;
    min-width: 300px;
  }
}

/* Mobile nav */
@media (max-width: 639px) {
  .nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 1.5rem;
    border-bottom: 1px solid var(--slate-200);
    box-shadow: var(--shadow-lg);
  }

  .nav.open {
    display: flex;
  }

  .nav-mobile-toggle {
    display: block;
  }

  .waitlist-form {
    flex-direction: column;
  }

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

  .hero h1 {
    font-size: 2rem;
  }

  .founder-content {
    flex-direction: column;
    text-align: center;
  }

  .phone-frame {
    width: 220px;
    min-width: 220px;
    border-radius: 32px;
    padding: 6px;
  }

  .phone-screen {
    border-radius: 27px;
  }

  .phone-notch {
    width: 110px;
    height: 20px;
  }

  .phone-home-indicator {
    width: 96px;
    height: 3px;
  }
}