/* ===== CSS Variables ===== */
:root {
  --color-bg: #0f0d13;
  --color-bg-elevated: #1a1625;
  --color-surface: #252030;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-text: #f5f3f7;
  --color-text-muted: #a8a3b3;
  --color-accent: #e8b4bc;
  --color-accent-soft: rgba(232, 180, 188, 0.15);
  --color-accent-hover: #f0c4cc;
  --font-sans: 'Outfit', system-ui, sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  --shadow-soft: 0 4px 24px rgba(0, 0, 0, 0.3);
  --transition: 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.25rem 2rem;
  background: rgba(15, 13, 19, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.nav {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-lang {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  padding: 0.35rem 0.6rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition);
}

.nav-lang:hover {
  color: var(--color-accent);
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo-img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: block;
}

.nav-cta {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-accent);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-accent);
  transition: all var(--transition);
}

.nav-cta:hover {
  background: var(--color-accent-soft);
  color: var(--color-accent-hover);
}

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 4rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 8rem 2rem 4rem;
}

.hero-content {
  max-width: 520px;
}

.hero-badge {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  margin-bottom: 1rem;
  padding: 0.35rem 0.9rem;
  background: var(--color-accent-soft);
  border-radius: var(--radius-full);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: 400;
  line-height: 1.15;
  margin-bottom: 1.5rem;
}

.hero-title-main {
  display: block;
  color: var(--color-text);
}

.hero-title-accent {
  display: block;
  font-style: italic;
  color: var(--color-accent);
}

.hero-desc {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  max-width: 420px;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-bg);
  background: var(--color-accent);
  padding: 0.9rem 1.75rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition);
  box-shadow: var(--shadow-soft);
}

.cta-button:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(232, 180, 188, 0.25);
}

.app-store-icon {
  width: 1.25rem;
  height: 1.25rem;
}

/* ===== Phone Mockup ===== */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.phone-mockup {
  width: 280px;
  height: 560px;
  background: var(--color-surface);
  border-radius: 2.5rem;
  padding: 12px;
  box-shadow: 
    0 0 0 2px var(--color-border),
    0 24px 48px rgba(0, 0, 0, 0.4),
    inset 0 0 0 1px rgba(255, 255, 255, 0.05);
}

.phone-screen {
  width: 100%;
  height: 100%;
  border-radius: 2rem;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.phone-screenshot {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

/* ===== Features ===== */
.features {
  padding: 6rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 400;
  text-align: center;
  margin-bottom: 3rem;
  color: var(--color-text);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.feature-card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition);
}

.feature-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 8px 32px rgba(232, 180, 188, 0.08);
  transform: translateY(-4px);
}

.feature-img {
  width: 100%;
  aspect-ratio: 9 / 19;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

/* ===== Screenshots ===== */
.screenshots {
  padding: 6rem 2rem;
  background: var(--color-bg-elevated);
}

.screenshots-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

.screenshot-img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--color-border);
}

/* ===== Privacy ===== */
.privacy {
  padding: 6rem 2rem;
  background: var(--color-bg-elevated);
}

.privacy-content {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.privacy-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.1rem;
  color: var(--color-accent);
  margin-bottom: 1.5rem;
  padding: 0.6rem 1.25rem;
  background: var(--color-accent-soft);
  border-radius: var(--radius-full);
}

.privacy-icon {
  font-size: 1.25rem;
}

.privacy-text {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.security-list {
  list-style: none;
  text-align: left;
  max-width: 400px;
  margin: 0 auto;
}

.security-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.security-list li:last-child {
  border-bottom: none;
}

.security-list span {
  color: var(--color-accent);
  font-weight: 500;
  flex-shrink: 0;
}

/* ===== CTA ===== */
.cta {
  padding: 6rem 2rem;
  text-align: center;
}

.cta-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 400;
  margin-bottom: 0.75rem;
  color: var(--color-text);
}

.cta-desc {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}

.cta-button-large {
  font-size: 1.1rem;
  padding: 1rem 2rem;
}

/* ===== Footer ===== */
.footer {
  padding: 2rem;
  text-align: center;
  border-top: 1px solid var(--color-border);
}

.footer p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.footer-links {
  margin-top: 0.5rem;
}

.footer-links a {
  color: var(--color-accent);
  text-decoration: none;
}

.footer-links a:hover {
  text-decoration: underline;
}

/* ===== Nav link (Blog) ===== */
.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition);
}

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

.nav-link.is-active {
  color: var(--color-accent);
}

/* ===== Blog ===== */
.blog-main {
  max-width: 720px;
  margin: 0 auto;
  padding: 6.5rem 2rem 4rem;
}

.blog-main--wide {
  max-width: 900px;
}

.blog-page-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 400;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.blog-page-lead {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  margin-bottom: 2.5rem;
}

.blog-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.blog-card {
  display: block;
  padding: 1.5rem 1.75rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: inherit;
  transition: all var(--transition);
}

.blog-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 8px 32px rgba(232, 180, 188, 0.08);
}

.blog-card-meta {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.blog-card-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 400;
  margin-bottom: 0.35rem;
  color: var(--color-text);
}

.blog-card-excerpt {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

.blog-article-header {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.blog-article-meta {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
}

.blog-article-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-text);
}

.blog-prose {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--color-text-muted);
}

.blog-prose p {
  margin-bottom: 1.25rem;
}

.blog-prose h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--color-text);
  margin: 2rem 0 0.75rem;
}

.blog-prose ul {
  margin: 0 0 1.25rem 1.25rem;
  color: var(--color-text-muted);
}

.blog-prose li {
  margin-bottom: 0.5rem;
}

.blog-prose strong {
  color: var(--color-text);
  font-weight: 600;
}

.blog-callout {
  margin: 2rem 0;
  padding: 1.25rem 1.5rem;
  background: var(--color-accent-soft);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-accent);
}

.blog-callout p {
  margin-bottom: 0;
  color: var(--color-text);
}

.blog-back {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-accent);
  text-decoration: none;
  margin-bottom: 1.5rem;
  transition: color var(--transition);
}

.blog-back:hover {
  color: var(--color-accent-hover);
}

.blog-prose-cta {
  display: inline-flex;
  align-items: center;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-accent);
  text-decoration: none;
  margin-top: 0.5rem;
}

.blog-prose-cta:hover {
  color: var(--color-accent-hover);
  text-decoration: underline;
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: 6rem;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-desc {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-visual {
    order: -1;
  }

  .phone-mockup {
    width: 240px;
    height: 480px;
  }

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

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

@media (max-width: 600px) {
  .nav {
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .hero {
    padding: 5rem 1.5rem 3rem;
  }

  .features,
  .screenshots,
  .privacy,
  .cta,
  .blog-main {
    padding: 5.5rem 1.5rem 3rem;
  }

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