/* ============================================
   Stravnyk Promo Page — Core Styles
   ============================================ */

:root {
  /* Brand colors — matched to iOS app asset catalog */
  --color-primary: #EC884C;          /* BrandPrimary light */
  --color-primary-dark: #CC6600;     /* High-contrast primary */
  --color-primary-light: #FF9966;    /* BrandPrimary dark-mode variant */
  --color-accent: #FF9500;           /* iOS AccentColor */
  --color-secondary: #4CB266;        /* BrandSecondary light */
  --color-secondary-light: #66C780; /* BrandSecondary dark-mode variant */
  --color-success: #34C759;          /* SuccessColor */
  --color-dark: #212121;             /* TextPrimary light */
  --color-dark-soft: #333333;
  --color-text: #212121;             /* TextPrimary */
  --color-text-light: #757575;       /* TextSecondary */
  --color-bg: #ffffff;               /* BackgroundSecondary / CardBackground */
  --color-bg-alt: #FAFAFA;           /* BackgroundPrimary */
  --color-bg-dark: #1C1C1E;          /* iOS system dark background */
  --color-border: rgba(0,0,0,0.15);  /* BorderColor */
  --color-border-solid: #D9D9D9;     /* Solid fallback for BorderColor */
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Display', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Text', sans-serif;
  --radius: 16px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 48px rgba(0,0,0,0.12);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
}

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

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

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-primary-dark); }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* ---------- NAV ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  transition: background var(--transition), box-shadow var(--transition);
}
.nav.scrolled { background: rgba(255,255,255,0.95); box-shadow: 0 2px 20px rgba(0,0,0,0.08); }
.nav-inner {
  max-width: var(--max-width); margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between; height: 64px;
}
.nav-logo { font-weight: 800; font-size: 1.35rem; color: var(--color-dark); display: flex; align-items: center; gap: 8px; }
.nav-logo-icon { width: 32px; height: 32px; border-radius: 8px; }
.nav-links { display: flex; gap: 32px; list-style: none; }
.nav-links a { color: var(--color-text-light); font-weight: 500; font-size: 0.95rem; }
.nav-links a:hover { color: var(--color-primary); }
.nav-cta {
  background: var(--color-primary); color: #fff !important; padding: 10px 24px;
  border-radius: 100px; font-weight: 600; font-size: 0.9rem;
  transition: transform var(--transition), box-shadow var(--transition);
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 4px 16px rgba(236,136,76,0.4); color: #fff !important; }
.nav-toggle { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; color: var(--color-dark); }

/* ---------- HERO ---------- */
.hero {
  padding: 140px 0 100px;
  background: linear-gradient(135deg, #FFF0E5 0%, #fff 40%, #EEFBF0 100%);
  position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; top: -50%; right: -20%; width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(236,136,76,0.08) 0%, transparent 70%);
  border-radius: 50%;
}
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; position: relative; }
.hero-content h1 {
  font-family: var(--font-heading); font-size: 3.5rem; font-weight: 800;
  line-height: 1.15; color: var(--color-dark); margin-bottom: 20px;
}
.hero-content h1 .highlight {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-content p { font-size: 1.2rem; color: var(--color-text-light); margin-bottom: 36px; max-width: 480px; }
.hero-actions { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.btn-primary {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--color-dark); color: #fff; padding: 16px 32px;
  border-radius: 14px; font-weight: 600; font-size: 1.05rem;
  transition: transform var(--transition), box-shadow var(--transition);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); color: #fff; }
.btn-primary svg { width: 24px; height: 24px; }
.btn-secondary {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--color-text-light); font-weight: 500; padding: 16px 8px;
}
.btn-secondary:hover { color: var(--color-primary); }
.hero-visual { display: flex; justify-content: center; position: relative; }
.hero-phone {
  width: 280px; height: 560px;
  background: linear-gradient(145deg, #1C1C1E 0%, #2C2C2E 100%);
  border-radius: 40px; position: relative;
  box-shadow: 0 40px 80px rgba(0,0,0,0.15), 0 0 0 2px rgba(255,255,255,0.1);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.hero-phone::before {
  content: ''; position: absolute; top: 12px; left: 50%; transform: translateX(-50%);
  width: 100px; height: 28px; background: #000; border-radius: 20px;
}
.phone-screen {
  width: 252px; height: 510px; border-radius: 30px; overflow: hidden;
  background: linear-gradient(180deg, #fff5eb 0%, #fff 30%, #faf9f7 100%);
  margin-top: 16px; padding: 40px 16px 16px;
}
.phone-screen-header { font-weight: 700; font-size: 1.1rem; color: var(--color-dark); margin-bottom: 12px; }
.phone-recipe-card {
  background: #fff; border-radius: 12px; padding: 12px; margin-bottom: 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.phone-recipe-img {
  width: 100%; height: 80px; border-radius: 8px; margin-bottom: 8px;
}
.phone-recipe-title { font-weight: 600; font-size: 0.75rem; color: var(--color-dark); }
.phone-recipe-meta { font-size: 0.65rem; color: var(--color-text-light); margin-top: 2px; }


/* ---------- SECTION COMMON ---------- */
section { padding: 100px 0; }
.section-label {
  display: inline-block; font-size: 0.8rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 2px; color: var(--color-primary); margin-bottom: 12px;
}
.section-title {
  font-family: var(--font-heading); font-size: 2.5rem; font-weight: 800;
  color: var(--color-dark); line-height: 1.2; margin-bottom: 16px;
}
.section-subtitle { font-size: 1.1rem; color: var(--color-text-light); max-width: 600px; }
.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* ---------- VIDEO ---------- */
.video-section { background: var(--color-bg-alt); padding: 100px 0; }
.video-wrapper {
  max-width: 800px; margin: 40px auto 0; border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow-lg);
  background: #000;
}
.video-wrapper video {
  width: 100%; height: auto; display: block;
}

/* ---------- FEATURES ---------- */
.features { background: var(--color-bg); }
.features-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-top: 60px;
}
.feature-card {
  background: var(--color-bg-alt); border-radius: var(--radius); padding: 36px 28px;
  border: 1px solid var(--color-border);
  transition: transform var(--transition), box-shadow var(--transition);
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.feature-icon {
  width: 56px; height: 56px; border-radius: 14px; display: flex;
  align-items: center; justify-content: center; font-size: 1.6rem; margin-bottom: 20px;
}
.feature-icon.orange { background: #FFF0E5; }
.feature-icon.green { background: #EEFBF0; }
.feature-icon.blue { background: #eff6ff; }
.feature-icon.purple { background: #faf5ff; }
.feature-icon.red { background: #fef2f2; }
.feature-icon.teal { background: #EEFBF0; }
.feature-card h3 { font-size: 1.2rem; font-weight: 700; color: var(--color-dark); margin-bottom: 8px; }
.feature-card p { font-size: 0.95rem; color: var(--color-text-light); line-height: 1.6; }

/* ---------- HOW IT WORKS ---------- */
.how-it-works { background: var(--color-bg-alt); }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; margin-top: 60px; }
.step { text-align: center; position: relative; }
.step-number {
  width: 64px; height: 64px; border-radius: 50%; display: flex;
  align-items: center; justify-content: center; margin: 0 auto 20px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: #fff; font-weight: 800; font-size: 1.4rem;
}
.step h3 { font-size: 1.15rem; font-weight: 700; color: var(--color-dark); margin-bottom: 8px; }
.step p { font-size: 0.95rem; color: var(--color-text-light); }

/* ---------- PRICING ---------- */
.pricing { background: var(--color-bg); }
.pricing-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; margin-top: 60px; max-width: 800px; margin-left: auto; margin-right: auto; }
.pricing-card {
  background: var(--color-bg-alt); border: 1px solid var(--color-border);
  border-radius: var(--radius); padding: 40px 32px; text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
}
.pricing-card.featured {
  background: linear-gradient(145deg, #1C1C1E 0%, #2C2C2E 100%); color: #fff; border-color: transparent;
  transform: scale(1.05); box-shadow: var(--shadow-lg);
}
.pricing-card.featured .section-label { color: var(--color-primary-light); }
.pricing-card.featured h3 { color: #fff; }
.pricing-card.featured .price { color: #fff; }
.pricing-card.featured .price span { color: rgba(255,255,255,0.6); }
.pricing-card.featured ul li { color: rgba(255,255,255,0.85); }
.pricing-card.featured ul li::before { color: var(--color-secondary); }
.pricing-badge {
  display: inline-block; background: var(--color-primary); color: #fff;
  font-size: 0.75rem; font-weight: 700; padding: 4px 14px; border-radius: 100px;
  margin-bottom: 16px; text-transform: uppercase; letter-spacing: 1px;
}
.pricing-card h3 { font-size: 1.3rem; font-weight: 700; color: var(--color-dark); margin-bottom: 4px; }
.price { font-size: 2.8rem; font-weight: 800; color: var(--color-dark); margin: 16px 0; }
.price span { font-size: 1rem; font-weight: 400; color: var(--color-text-light); }
.pricing-card ul { list-style: none; text-align: left; margin: 24px 0; }
.pricing-card ul li {
  padding: 8px 0; font-size: 0.95rem; color: var(--color-text-light);
  display: flex; align-items: start; gap: 10px;
}
.pricing-card ul li::before { content: '✓'; color: var(--color-primary); font-weight: 700; }
.pricing-btn {
  display: inline-block; width: 100%; padding: 14px; border-radius: 12px;
  font-weight: 600; font-size: 1rem; text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
}
.pricing-btn.primary { background: var(--color-primary); color: #fff; }
.pricing-btn.primary:hover { transform: translateY(-2px); box-shadow: 0 4px 16px rgba(236,136,76,0.4); color: #fff; }
.pricing-btn.dark { background: #fff; color: var(--color-dark); }
.pricing-btn.dark:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.pricing-btn.outline { border: 2px solid var(--color-border); color: var(--color-text); }
.pricing-btn.outline:hover { border-color: var(--color-primary); color: var(--color-primary); }

/* ---------- LANGUAGES ---------- */
.languages { background: var(--color-bg-alt); }
.lang-grid {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 40px;
}
.lang-tag {
  background: #fff; border: 1px solid var(--color-border); padding: 10px 20px;
  border-radius: 100px; font-size: 0.9rem; font-weight: 500; color: var(--color-text);
  transition: transform var(--transition);
}
.lang-tag:hover { transform: translateY(-2px); box-shadow: var(--shadow); }

/* ---------- CTA ---------- */
.cta {
  background: linear-gradient(135deg, #1C1C1E 0%, #2C2C2E 100%);
  color: #fff; text-align: center; padding: 100px 0;
}
.cta .section-title { color: #fff; }
.cta p { color: rgba(255,255,255,0.7); font-size: 1.15rem; margin-bottom: 36px; }
.cta .btn-primary { background: var(--color-primary); }
.cta .btn-primary:hover { box-shadow: 0 8px 32px rgba(236,136,76,0.4); }

/* ---------- FOOTER ---------- */
.footer { background: #1C1C1E; color: rgba(255,255,255,0.6); padding: 60px 0 30px; }
.footer-inner {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px;
}
.footer-brand p { font-size: 0.9rem; line-height: 1.7; margin-top: 12px; max-width: 300px; }
.footer-col h4 { color: #fff; font-size: 0.9rem; font-weight: 700; margin-bottom: 16px; text-transform: uppercase; letter-spacing: 1px; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { color: rgba(255,255,255,0.6); font-size: 0.9rem; }
.footer-col ul a:hover { color: var(--color-primary-light); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1); padding-top: 24px;
  display: flex; justify-content: space-between; align-items: center; font-size: 0.85rem;
}

/* ---------- ANIMATIONS ---------- */
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ---------- SUBPAGE STYLES ---------- */
.page-header {
  padding: 120px 0 60px;
  background: linear-gradient(135deg, #fff5eb 0%, #fff 100%);
}
.page-header h1 { font-size: 2.5rem; font-weight: 800; color: var(--color-dark); }
.page-header p { color: var(--color-text-light); margin-top: 8px; }
.page-content { padding: 60px 0 100px; }
.page-content h2 { font-size: 1.5rem; font-weight: 700; color: var(--color-dark); margin: 40px 0 16px; }
.page-content h3 { font-size: 1.2rem; font-weight: 600; color: var(--color-dark); margin: 28px 0 12px; }
.page-content p { margin-bottom: 16px; }
.page-content ul, .page-content ol { margin: 12px 0 16px 24px; }
.page-content li { margin-bottom: 6px; }
.page-content a { text-decoration: underline; }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 968px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-content h1 { font-size: 2.8rem; }
  .hero-content p { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .hero-visual { margin-top: 40px; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; max-width: 400px; margin-left: auto; margin-right: auto; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 420px; margin-left: auto; margin-right: auto; }
  .pricing-card.featured { transform: scale(1); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex; flex-direction: column; position: absolute;
    top: 64px; left: 0; right: 0; background: #fff; padding: 24px;
    box-shadow: var(--shadow); gap: 16px;
  }
  .nav-toggle { display: block; }
  .hero { padding: 120px 0 60px; }
  .hero-content h1 { font-size: 2.2rem; }
  .hero-phone { width: 220px; height: 440px; }
  .phone-screen { width: 196px; height: 400px; }
  section { padding: 60px 0; }
  .section-title { font-size: 2rem; }
  .features-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
}