/* ============================================
   Eat With Your Eyes — Landing Page Styles
   ============================================ */

/* --- CSS Custom Properties (Design Tokens) --- */
:root {
  --color-primary: #FF6B35;
  --color-primary-dark: #E55A2B;
  --color-primary-light: #FF8F65;
  --color-primary-tint: #FFF4EF;
  --color-secondary: #2EC4B6;
  --color-secondary-dark: #25A89C;
  --color-secondary-tint: #F0FAF9;
  --color-accent: #FFBF00;
  --color-background: #FAF9F7;
  --color-surface: #FFFFFF;
  --color-border: #E8E8E8;
  --color-text-primary: #1A1A2E;
  --color-text-secondary: #6B7280;
  --color-text-tertiary: #9CA3AF;
  --color-text-inverse: #FFFFFF;

  --font-heading: 'Nunito', sans-serif;
  --font-body: 'Inter', sans-serif;

  --shadow-sm: 0 1px 4px rgba(26, 26, 46, 0.08);
  --shadow-md: 0 2px 8px rgba(26, 26, 46, 0.12);
  --shadow-lg: 0 4px 12px rgba(26, 26, 46, 0.15);
  --shadow-warm: 0 2px 8px rgba(255, 107, 53, 0.15);
  --shadow-warm-lg: 0 8px 24px rgba(255, 107, 53, 0.2);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;

  --container-max: 1200px;
  --nav-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  color: var(--color-text-primary);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
  list-style: none;
}

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* --- Skip Link --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-radius: var(--radius-sm);
  font-weight: 600;
  z-index: 1000;
  transition: top 0.2s;
}

.skip-link:focus {
  top: var(--spacing-sm);
}

/* --- Utility --- */
.text-accent {
  color: var(--color-primary);
}

.badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--color-primary-tint);
  color: var(--color-primary);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 14px;
  border-radius: var(--radius-full);
  letter-spacing: 0.5px;
}

.badge--secondary {
  background: var(--color-secondary-tint);
  color: var(--color-secondary-dark);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-weight: 600;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  letter-spacing: 0.5px;
}

.btn:focus-visible {
  outline: 3px solid var(--color-primary-light);
  outline-offset: 2px;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border: 2px solid var(--color-primary);
}

.btn--primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-warm);
}

.btn--outline {
  background: transparent;
  color: var(--color-text-primary);
  border: 2px solid var(--color-border);
}

.btn--outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.btn--sm {
  padding: 8px 20px;
  font-size: 14px;
}

.btn--lg {
  padding: 14px 32px;
  font-size: 16px;
}

/* ============================================
   Navigation
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(250, 249, 247, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 100;
  transition: box-shadow 0.3s ease;
}

.nav--scrolled {
  box-shadow: var(--shadow-md);
}

.nav__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 20px;
  color: var(--color-text-primary);
  z-index: 101;
}

.nav__logo-icon {
  font-size: 24px;
}

.nav__hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: var(--spacing-sm);
  z-index: 101;
}

.nav__hamburger-line {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.nav__hamburger[aria-expanded="true"] .nav__hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav__hamburger[aria-expanded="true"] .nav__hamburger-line:nth-child(2) {
  opacity: 0;
}

.nav__hamburger[aria-expanded="true"] .nav__hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav__menu {
  display: none;
  position: absolute;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: var(--color-surface);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-lg);
  flex-direction: column;
  align-items: stretch;
  gap: var(--spacing-sm);
}

.nav__menu--open {
  display: flex;
}

.nav__list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.nav__link {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  transition: color 0.2s, background 0.2s;
}

.nav__link:hover {
  color: var(--color-primary);
  background: var(--color-primary-tint);
}

.nav__link:focus-visible {
  outline: 3px solid var(--color-primary-light);
  outline-offset: 2px;
}

.nav__cta {
  margin-top: var(--spacing-sm);
  text-align: center;
}

/* ============================================
   Hero
   ============================================ */
.hero {
  position: relative;
  padding: calc(var(--nav-height) + 48px) var(--spacing-lg) var(--spacing-xxl);
  overflow: hidden;
}

.hero__container {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xxl);
}

.hero__content {
  text-align: center;
  max-width: 600px;
}

.hero__title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 32px;
  line-height: 1.2;
  letter-spacing: -0.5px;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
}

.hero__subtitle {
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  justify-content: center;
  margin-bottom: var(--spacing-xl);
}

.hero__social-proof {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
}

.hero__avatars {
  display: flex;
}

.hero__avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 14px;
  border: 2px solid var(--color-surface);
  margin-left: -8px;
}

.hero__avatar:first-child {
  margin-left: 0;
}

.hero__social-text {
  font-size: 14px;
  color: var(--color-text-secondary);
}

.hero__glow {
  position: absolute;
  top: 20%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 107, 53, 0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
}

/* --- Phone Mockup --- */
.hero__mockup {
  flex-shrink: 0;
}

.phone {
  position: relative;
  width: 260px;
  height: 520px;
  background: var(--color-text-primary);
  border-radius: 36px;
  padding: 12px;
  box-shadow: var(--shadow-lg), 0 20px 60px rgba(26, 26, 46, 0.15);
  animation: phoneFloat 6s ease-in-out infinite;
}

@keyframes phoneFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.phone__notch {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 24px;
  background: var(--color-text-primary);
  border-radius: 0 0 16px 16px;
  z-index: 2;
}

.phone__screen {
  width: 100%;
  height: 100%;
  background: var(--color-surface);
  border-radius: 24px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.phone__status-bar {
  display: flex;
  justify-content: space-between;
  padding: 8px 16px;
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text-primary);
}

.phone__tabs {
  display: flex;
  gap: 4px;
  padding: 0 12px 8px;
  border-bottom: 1px solid var(--color-border);
}

.phone__tab {
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text-tertiary);
  border-radius: var(--radius-full);
}

.phone__tab--active {
  background: var(--color-primary);
  color: white;
}

.phone__card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--color-border);
}

.phone__card-img {
  width: 48px;
  height: 48px;
  background: var(--color-primary-tint);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.phone__card-name {
  font-weight: 700;
  font-size: 12px;
  color: var(--color-text-primary);
}

.phone__card-meta {
  font-size: 10px;
  color: var(--color-text-secondary);
  margin-top: 2px;
}

.phone__nav-bar {
  margin-top: auto;
  display: flex;
  justify-content: space-around;
  align-items: center;
  padding: 8px 0;
  border-top: 1px solid var(--color-border);
  font-size: 18px;
}

.phone__nav-add {
  width: 32px;
  height: 32px;
  background: var(--color-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
}

/* ============================================
   Features
   ============================================ */
.features {
  padding: 80px var(--spacing-lg);
}

.features__container {
  max-width: var(--container-max);
  margin: 0 auto;
}

.features__header {
  text-align: center;
  margin-bottom: var(--spacing-xxl);
}

.features__title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 28px;
  line-height: 1.2;
  letter-spacing: -0.3px;
  color: var(--color-text-primary);
  margin-top: var(--spacing-md);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.features__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

.feature-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  border: 1px solid var(--color-border);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-warm-lg);
}

.feature-card:focus-within {
  outline: 3px solid var(--color-primary-light);
  outline-offset: 2px;
}

.feature-card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: var(--spacing-md);
}

.feature-card__icon--primary {
  background: var(--color-primary-tint);
}

.feature-card__icon--secondary {
  background: var(--color-secondary-tint);
}

.feature-card__icon--accent {
  background: #FFF8E0;
}

.feature-card__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 18px;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.feature-card__desc {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

/* ============================================
   Discover / How It Works
   ============================================ */
.discover {
  padding: 80px var(--spacing-lg);
  background: var(--color-surface);
}

.discover__container {
  max-width: var(--container-max);
  margin: 0 auto;
}

.discover__header {
  text-align: center;
  margin-bottom: var(--spacing-xxl);
}

.discover__title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 28px;
  line-height: 1.2;
  color: var(--color-text-primary);
  margin-top: var(--spacing-md);
}

.discover__steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
  max-width: 900px;
  margin: 0 auto;
}

.discover__step {
  text-align: center;
  padding: var(--spacing-xl);
}

.discover__step-number {
  width: 56px;
  height: 56px;
  background: var(--color-primary);
  color: var(--color-text-inverse);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
}

.discover__step-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 20px;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.discover__step-desc {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-secondary);
  max-width: 280px;
  margin: 0 auto;
}

/* ============================================
   CTA / Download
   ============================================ */
.cta {
  padding: 80px var(--spacing-lg);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  text-align: center;
}

.cta__container {
  max-width: 600px;
  margin: 0 auto;
}

.cta__title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 32px;
  line-height: 1.2;
  color: var(--color-text-inverse);
  margin-bottom: var(--spacing-md);
}

.cta__subtitle {
  font-size: 16px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--spacing-xl);
}

.cta__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  justify-content: center;
}

.store-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 12px 24px;
  background: var(--color-text-primary);
  color: var(--color-text-inverse);
  border-radius: var(--radius-md);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.store-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.store-btn:focus-visible {
  outline: 3px solid var(--color-text-inverse);
  outline-offset: 2px;
}

.store-btn__icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.store-btn__label {
  display: block;
  font-size: 10px;
  opacity: 0.8;
  line-height: 1;
}

.store-btn__store {
  display: block;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.2;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background: var(--color-text-primary);
  color: rgba(255, 255, 255, 0.7);
  padding: 64px var(--spacing-lg) var(--spacing-xl);
}

.footer__container {
  max-width: var(--container-max);
  margin: 0 auto;
}

.footer__brand {
  margin-bottom: var(--spacing-xl);
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 20px;
  color: var(--color-text-inverse);
  margin-bottom: var(--spacing-sm);
}

.footer__tagline {
  font-size: 14px;
  line-height: 1.6;
  max-width: 300px;
}

.footer__links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer__col-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 14px;
  color: var(--color-text-inverse);
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer__col ul {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer__col a {
  font-size: 14px;
  transition: color 0.2s;
}

.footer__col a:hover {
  color: var(--color-primary);
}

.footer__col a:focus-visible {
  outline: 2px solid var(--color-primary-light);
  outline-offset: 2px;
}

.footer__bottom {
  padding-top: var(--spacing-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 13px;
  text-align: center;
}

/* ============================================
   Scroll Reveal Animation
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ============================================
   Responsive: Tablet (768px+)
   ============================================ */
@media (min-width: 768px) {
  .nav__hamburger {
    display: none;
  }

  .nav__menu {
    display: flex;
    position: static;
    background: none;
    padding: 0;
    box-shadow: none;
    flex-direction: row;
    align-items: center;
    gap: var(--spacing-sm);
  }

  .nav__list {
    flex-direction: row;
    gap: 0;
  }

  .nav__cta {
    margin-top: 0;
    margin-left: var(--spacing-sm);
  }

  .hero__title {
    font-size: 40px;
  }

  .hero__subtitle {
    font-size: 18px;
  }

  .features__title {
    font-size: 36px;
    max-width: 600px;
  }

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

  .discover__title {
    font-size: 36px;
  }

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

  .cta__title {
    font-size: 40px;
  }

  .footer__container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    grid-template-rows: auto auto;
    gap: var(--spacing-xl);
  }

  .footer__brand {
    margin-bottom: 0;
  }

  .footer__links {
    margin-bottom: 0;
  }

  .footer__bottom {
    grid-column: 1 / -1;
    text-align: left;
  }
}

/* ============================================
   Responsive: Desktop (1024px+)
   ============================================ */
@media (min-width: 1024px) {
  .hero__container {
    flex-direction: row;
    align-items: center;
    gap: 64px;
  }

  .hero__content {
    text-align: left;
    flex: 0 0 55%;
  }

  .hero__title {
    font-size: 56px;
    line-height: 1.1;
  }

  .hero__subtitle {
    font-size: 18px;
  }

  .hero__actions {
    justify-content: flex-start;
  }

  .hero__social-proof {
    justify-content: flex-start;
  }

  .hero__mockup {
    flex: 0 0 45%;
    display: flex;
    justify-content: center;
  }

  .phone {
    width: 300px;
    height: 600px;
  }

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

  .features {
    padding: 100px var(--spacing-lg);
  }

  .discover {
    padding: 100px var(--spacing-lg);
  }

  .cta {
    padding: 100px var(--spacing-lg);
  }

  .cta__title {
    font-size: 48px;
  }
}

/* ============================================
   Prefers Reduced Motion
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .phone {
    animation: none;
  }

  .btn,
  .feature-card,
  .store-btn {
    transition: none;
  }
}