/* ============================================================
   Piku Marketing Website — style.css
   Design tokens mirror the Flutter "Modern Editorial Luxury" system
   ============================================================ */

/* 1. Reset & base
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'DM Sans', system-ui, sans-serif;
  background-color: var(--color-bg);
  color: var(--color-ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a  { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* 2. Design tokens
   ============================================================ */
:root {
  /* Brand */
  --color-primary:       #0D9488;
  --color-primary-dark:  #0F766E;
  --color-primary-light: #14B8A6;
  --color-accent:        #FF6B4A;
  --color-gold:          #F59E0B;
  --color-success:       #059669;

  /* Backgrounds */
  --color-bg:            #FAF7F2;
  --color-bg-deep:       #F5EFE6;
  --color-cream:         #FFFBF7;
  --color-teal-faint:    rgba(204, 251, 241, 0.60);
  --color-coral-faint:   rgba(255, 212, 199, 0.30);

  /* Text */
  --color-ink:           #1A1A1A;
  --color-graphite:      #4A4A4A;
  --color-slate:         #737373;

  /* Border */
  --color-cloud:         #E5E5E5;

  /* Gradients */
  --grad-ocean:   linear-gradient(135deg, #14B8A6, #0D9488, #0F766E);
  --grad-hero:    linear-gradient(135deg, #FAF7F2, #FFFBF7, rgba(204,251,241,0.6), rgba(255,212,199,0.3), #FAF7F2);

  /* Spacing */
  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2rem;
  --space-2xl: 3rem;
  --space-3xl: 5rem;

  /* Radius */
  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-xl:  32px;
  --radius-full: 9999px;

  /* Shadow */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.08);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.10);
  --shadow-lg:  0 12px 40px rgba(0,0,0,0.12);
  --shadow-ocean: 0 8px 20px rgba(13,148,136,0.25);

  /* Transitions */
  --transition: 0.25s ease;

  /* Navbar height */
  --nav-h: 70px;
}

/* 3. Typography utilities
   ============================================================ */
.display-text {
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.section-title {
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 600;
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  line-height: 1.2;
  color: var(--color-ink);
}

.overline {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
}
.overline::before {
  content: '';
  display: block;
  width: 16px;
  height: 2px;
  background: var(--grad-ocean);
  border-radius: 2px;
  flex-shrink: 0;
}

/* 4. Layout utilities
   ============================================================ */
.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: var(--space-lg);
}

.grid-2 { display: grid; gap: var(--space-xl); }
.grid-3 { display: grid; gap: var(--space-lg); }

section { padding-block: var(--space-3xl); }

.text-center { text-align: center; }
.section-desc {
  color: var(--color-graphite);
  font-size: 1.1rem;
  max-width: 56ch;
  margin-inline: auto;
  margin-top: var(--space-md);
}

/* 5. Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-full);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--grad-ocean);
  color: #fff;
  box-shadow: var(--shadow-ocean);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(13,148,136,0.35);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}
.btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--color-graphite);
  border: 2px solid var(--color-cloud);
}
.btn-ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-gold {
  background: linear-gradient(135deg, #F59E0B, #D97706);
  color: #fff;
  box-shadow: 0 8px 20px rgba(245,158,11,0.25);
}
.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(245,158,11,0.35);
}

/* 6. Navbar
   ============================================================ */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background var(--transition), box-shadow var(--transition), backdrop-filter var(--transition);
}

#navbar.scrolled {
  background: rgba(250, 247, 242, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--color-cloud);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: 'Playfair Display', serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-ink);
}
.nav-logo img {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
}

.nav-links {
  display: none;
  gap: var(--space-xl);
  align-items: center;
}
.nav-links a {
  font-weight: 500;
  color: var(--color-graphite);
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--color-primary); }

.nav-actions {
  display: none;
  align-items: center;
  gap: var(--space-md);
}

#lang-toggle {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--color-slate);
  background: none;
  border: 1.5px solid var(--color-cloud);
  border-radius: var(--radius-full);
  padding: 0.3rem 0.75rem;
  cursor: pointer;
  transition: all var(--transition);
}
#lang-toggle:hover { border-color: var(--color-primary); color: var(--color-primary); }

#hamburger {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: none;
  background: none;
  font-size: 1.25rem;
  cursor: pointer;
  color: var(--color-ink);
}

/* Mobile menu */
#mobile-menu {
  display: none;
  flex-direction: column;
  position: fixed;
  top: var(--nav-h);
  left: 0;
  right: 0;
  background: rgba(250,247,242,0.98);
  backdrop-filter: blur(16px);
  padding: var(--space-lg);
  gap: var(--space-md);
  z-index: 999;
  border-bottom: 1px solid var(--color-cloud);
}
#mobile-menu.open { display: flex; }
#mobile-menu a {
  font-weight: 500;
  color: var(--color-graphite);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-cloud);
}
#mobile-menu a:last-child { border-bottom: none; }
#mobile-menu .btn { margin-top: var(--space-sm); align-self: flex-start; }
#mobile-menu #lang-toggle-mobile { align-self: flex-start; }

/* 7. Hero
   ============================================================ */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--grad-hero);
  background-size: 400% 400%;
  animation: gradientShift 15s ease infinite;
  padding-top: var(--nav-h);
  overflow: hidden;
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50%       { background-position: 100% 50%; }
}

.hero-grid {
  display: grid;
  gap: var(--space-3xl);
  align-items: center;
  padding-block: var(--space-3xl);
}

.hero-content { max-width: 600px; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: rgba(255,255,255,0.75);
  border: 1px solid rgba(255,255,255,0.9);
  border-radius: var(--radius-full);
  padding: 0.4rem 1rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-lg);
  backdrop-filter: blur(8px);
}
.hero-badge .dot {
  width: 8px; height: 8px;
  background: var(--color-primary);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(1.3); }
}

.hero-headline {
  font-size: clamp(2.5rem, 6vw, 4rem);
  color: var(--color-ink);
  margin-bottom: var(--space-lg);
}
.hero-headline .accent { color: var(--color-primary); }

.hero-subheadline {
  font-size: 1.15rem;
  color: var(--color-graphite);
  margin-bottom: var(--space-xl);
  max-width: 52ch;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.store-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.store-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--color-ink);
  color: #fff;
  border-radius: var(--radius-md);
  padding: 0.6rem 1.2rem;
  font-size: 0.85rem;
  font-weight: 500;
  transition: all var(--transition);
  opacity: 0.85;
}
.store-badge:hover { opacity: 1; transform: translateY(-2px); }
.store-badge i { font-size: 1.1rem; }

/* Phone mockup */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.phone-frame {
  position: relative;
  width: 220px;
  height: 440px;
  background: var(--color-ink);
  border-radius: 36px;
  box-shadow: 0 40px 80px rgba(0,0,0,0.25), 0 0 0 8px #2a2a2a;
  overflow: hidden;
  animation: float 5s ease-in-out infinite;
  flex-shrink: 0;
}

.phone-screen {
  position: absolute;
  inset: 8px;
  background: var(--grad-hero);
  border-radius: 30px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 20px;
}

.phone-screen img {
  width: 64px;
  height: 64px;
  border-radius: 14px;
}

.phone-screen .phone-brand {
  font-family: 'Playfair Display', serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-ink);
}

.phone-notch {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 24px;
  background: var(--color-ink);
  border-radius: 0 0 16px 16px;
  z-index: 2;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-16px); }
}

/* Floating stat cards */
.stat-card {
  position: absolute;
  background: rgba(255,255,255,0.65);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.8);
  border-radius: var(--radius-lg);
  padding: var(--space-md) var(--space-lg);
  box-shadow: var(--shadow-md);
  min-width: 130px;
}

.stat-card-rating {
  top: 18%;
  right: -20px;
  animation: float 5s 1s ease-in-out infinite;
}

.stat-card-restaurants {
  bottom: 22%;
  left: -20px;
  animation: float 5s 2.5s ease-in-out infinite;
}

.stat-card .stat-value {
  font-family: 'Playfair Display', serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-ink);
}
.stat-card .stat-label {
  font-size: 0.75rem;
  color: var(--color-slate);
  margin-top: 2px;
}
.stat-card .stat-stars { color: var(--color-gold); font-size: 0.7rem; }

/* 8. Trust bar
   ============================================================ */
#trust {
  background: var(--color-cream);
  border-block: 1px solid var(--color-cloud);
  padding-block: var(--space-2xl);
}

.trust-grid {
  display: grid;
  gap: var(--space-xl);
  text-align: center;
}

.trust-item .trust-number {
  font-family: 'Playfair Display', serif;
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--color-primary);
}
.trust-item .trust-label {
  font-weight: 600;
  color: var(--color-ink);
  margin-top: var(--space-xs);
}
.trust-item .trust-desc {
  font-size: 0.85rem;
  color: var(--color-slate);
}

/* 9. Features
   ============================================================ */
#features { background: var(--color-bg); }

.feature-tabs {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-block: var(--space-2xl);
  background: rgba(255,255,255,0.7);
  border: 1px solid var(--color-cloud);
  border-radius: var(--radius-full);
  padding: 4px;
  width: fit-content;
  margin-inline: auto;
}

.feature-tab {
  padding: 0.6rem 1.5rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  border: none;
  background: none;
  color: var(--color-slate);
  transition: all var(--transition);
}
.feature-tab.active {
  background: var(--grad-ocean);
  color: #fff;
  box-shadow: var(--shadow-ocean);
}
.feature-tab:hover:not(.active) { color: var(--color-primary); }

.feature-panel { display: none; }
.feature-panel.active { display: block; }

.feature-grid { display: grid; gap: var(--space-lg); }

.feature-card {
  background: rgba(255,255,255,0.65);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.8);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(13,148,136,0.2);
}

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(20,184,166,0.12), rgba(13,148,136,0.06));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--color-primary);
  margin-bottom: var(--space-lg);
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: var(--space-sm);
}
.feature-card p { font-size: 0.9rem; color: var(--color-graphite); line-height: 1.6; }

/* 10. How It Works
   ============================================================ */
#how-it-works { background: var(--color-bg-deep); }

.steps-grid { display: grid; gap: var(--space-xl); }

.step {
  text-align: center;
  position: relative;
}

.step-number {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--grad-ocean);
  color: #fff;
  font-family: 'Playfair Display', serif;
  font-size: 1.5rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-inline: auto;
  margin-bottom: var(--space-lg);
  box-shadow: var(--shadow-ocean);
}

.step h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: var(--space-sm);
}
.step p { font-size: 0.95rem; color: var(--color-graphite); max-width: 28ch; margin-inline: auto; }

/* 11. Pricing
   ============================================================ */
#pricing { background: var(--color-cream); }

.pricing-grid { display: grid; gap: var(--space-lg); }

.pricing-card {
  background: rgba(255,255,255,0.8);
  border: 1px solid var(--color-cloud);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  position: relative;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}
.pricing-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

.pricing-card.featured {
  border-color: var(--color-primary);
  background: rgba(255,255,255,0.95);
  box-shadow: 0 8px 32px rgba(13,148,136,0.15);
}

.pricing-card.premium {
  border-color: var(--color-gold);
  background: linear-gradient(180deg, rgba(255,255,255,0.95), rgba(245,158,11,0.04));
}

.pricing-badge {
  display: inline-block;
  background: var(--grad-ocean);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
}

.pricing-card h3 {
  font-family: 'Playfair Display', serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: var(--space-xs);
}

.pricing-tagline {
  font-size: 0.85rem;
  color: var(--color-slate);
  margin-bottom: var(--space-lg);
}

.pricing-price {
  margin-bottom: var(--space-lg);
}
.pricing-price .amount {
  font-family: 'Playfair Display', serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-ink);
}
.pricing-price .amount.teal { color: var(--color-primary); }
.pricing-price .amount.gold { color: var(--color-gold); }
.pricing-price .period {
  font-size: 0.9rem;
  color: var(--color-slate);
  margin-left: 4px;
}

.pricing-divider {
  height: 1px;
  background: var(--color-cloud);
  margin-block: var(--space-lg);
}

.pricing-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}
.pricing-features li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.9rem;
  color: var(--color-graphite);
}
.pricing-features li i { font-size: 0.85rem; }
.pricing-features li .check-ocean { color: var(--color-primary); }
.pricing-features li .check-gold  { color: var(--color-gold); }

/* 12. Contact
   ============================================================ */
#contact { background: var(--color-bg); }

.contact-grid { display: grid; gap: var(--space-3xl); align-items: start; }

.contact-pitch h2 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  margin-bottom: var(--space-md);
}
.contact-pitch p { color: var(--color-graphite); margin-bottom: var(--space-lg); line-height: 1.7; }
.contact-email { display: flex; align-items: center; gap: var(--space-sm); }
.contact-email a { color: var(--color-primary); font-weight: 600; transition: color var(--transition); }
.contact-email a:hover { color: var(--color-primary-dark); }

.contact-form-wrap {
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.8);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-md);
}

.form-group { margin-bottom: var(--space-lg); }
.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-graphite);
  margin-bottom: var(--space-sm);
}

.form-group input,
.form-group textarea {
  width: 100%;
  background: var(--color-cream);
  border: 1.5px solid var(--color-cloud);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.95rem;
  color: var(--color-ink);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(13,148,136,0.12);
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--color-slate); }

.form-submit { width: 100%; justify-content: center; }

#form-success {
  display: none;
  text-align: center;
  padding: var(--space-xl);
}
#form-success .success-icon {
  font-size: 3rem;
  color: var(--color-success);
  margin-bottom: var(--space-md);
}
#form-success h3 { font-size: 1.25rem; margin-bottom: var(--space-sm); }
#form-success p { color: var(--color-graphite); }

/* 13. Footer
   ============================================================ */
footer {
  background: var(--color-ink);
  color: rgba(255,255,255,0.7);
  padding-block: var(--space-2xl);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  align-items: center;
  text-align: center;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: 'Playfair Display', serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: #fff;
}
.footer-logo img {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  opacity: 0.9;
}

.footer-tagline { font-size: 0.9rem; max-width: 44ch; }

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-lg);
}
.footer-links a {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--color-primary-light); }

.footer-social {
  display: flex;
  gap: var(--space-md);
}
.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  transition: all var(--transition);
}
.footer-social a:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.footer-copy { font-size: 0.8rem; color: rgba(255,255,255,0.4); }

/* 14. Responsive
   ============================================================ */
@media (min-width: 640px) {
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(3, 1fr); }
  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {
  .nav-links { display: flex; }
  .nav-actions { display: flex; }
  #hamburger { display: none; }

  .hero-grid { grid-template-columns: 1fr 1fr; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr 1fr; }
  .footer-inner { flex-direction: row; justify-content: space-between; text-align: left; }
}

@media (min-width: 1024px) {
  .trust-grid { grid-template-columns: repeat(4, 1fr); }
  .feature-grid { grid-template-columns: repeat(3, 1fr); }
  .pricing-grid { grid-template-columns: repeat(3, 1fr); }
  .hero-headline { font-size: 4rem; }
}

@media (min-width: 1280px) {
  .container { padding-inline: var(--space-2xl); }
}

/* 15. Accessibility
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 4px;
}