/* Fonts - Local */
@font-face {
  font-family: 'Instrument Serif';
  src: url('../fonts/instrument-serif-regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Instrument Serif';
  src: url('../fonts/instrument-serif-italic.woff2') format('woff2');
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}

@font-face {
  font-family: 'DM Sans';
  src: url('../fonts/dm-sans-variable.woff2') format('woff2');
  font-weight: 300 700;
  font-style: normal;
  font-display: swap;
}

/* CSS Variables */
:root {
  --color-bg: #FAF8F5;
  --color-bg-warm: #F5F0E8;
  --color-text: #1A1A1A;
  --color-text-muted: #6B6560;
  --color-accent: #D4582A;
  --color-accent-soft: #E8B4A0;
  --color-border: #E5E0D8;
  --color-card: #FFFFFF;
  --shadow-soft: 0 4px 20px rgba(26, 26, 26, 0.06);
  --shadow-medium: 0 8px 40px rgba(26, 26, 26, 0.1);
  --shadow-lifted: 0 20px 60px rgba(26, 26, 26, 0.15);
  --font-serif: 'Instrument Serif', Georgia, serif;
  --font-sans: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-back: cubic-bezier(0.34, 1.56, 0.64, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #0F0E0D;
    --color-bg-warm: #1A1816;
    --color-text: #F5F0E8;
    --color-text-muted: #9B9590;
    --color-accent: #E86A3A;
    --color-accent-soft: #5C3A2A;
    --color-border: #2A2725;
    --color-card: #1A1816;
    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.2);
    --shadow-medium: 0 8px 40px rgba(0, 0, 0, 0.3);
    --shadow-lifted: 0 20px 60px rgba(0, 0, 0, 0.4);
  }
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Grain overlay for texture */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  opacity: 0.03;
  pointer-events: none;
  z-index: 9999;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 4rem);
}

/* Header */
header {
  padding: clamp(2rem, 5vw, 4rem) 0;
  position: relative;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: inherit;
}

.logo-mark {
  padding: 0.5rem 0.75rem;
  background: linear-gradient(135deg, var(--color-accent) 0%, #B8441A 100%);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 400;
  color: white;
  box-shadow: 0 2px 8px rgba(212, 88, 42, 0.3);
}

.logo-text {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}

nav {
  display: flex;
  gap: 2rem;
}

nav a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
}

nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--color-accent);
  transition: width 0.3s var(--ease-out-expo);
}

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

nav a:hover::after {
  width: 100%;
}

/* Hero */
.hero {
  padding: clamp(4rem, 12vw, 10rem) 0;
  position: relative;
}

.hero-content {
  max-width: 900px;
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.hero-label::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--color-accent);
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 2rem;
}

.hero h1 em {
  font-style: italic;
  color: var(--color-accent);
}

.hero-description {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  color: var(--color-text-muted);
  max-width: 580px;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  gap: clamp(2rem, 5vw, 4rem);
  margin-top: 3.5rem;
  padding-top: 3rem;
  border-top: 1px solid var(--color-border);
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400;
  color: var(--color-text);
  line-height: 1;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 0.5rem;
}

/* Decorative element */
.hero-decoration {
  position: absolute;
  right: 5%;
  top: 50%;
  transform: translateY(-50%);
  width: clamp(200px, 25vw, 350px);
  height: clamp(200px, 25vw, 350px);
  background: radial-gradient(circle at 30% 30%, var(--color-accent-soft) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.6;
  pointer-events: none;
}

/* Apps Section */
.apps-section {
  padding: clamp(4rem, 10vw, 8rem) 0;
}

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: clamp(3rem, 6vw, 5rem);
  flex-wrap: wrap;
  gap: 1.5rem;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400;
  letter-spacing: -0.02em;
}

.section-subtitle {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  max-width: 400px;
}

.apps-grid {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

/* App Card */
.app-card {
  background: var(--color-card);
  border-radius: 24px;
  padding: clamp(2rem, 4vw, 3rem);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
  transition: transform 0.5s var(--ease-out-expo),
        box-shadow 0.5s var(--ease-out-expo);
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: auto auto auto;
  gap: 2rem;
  position: relative;
  overflow: hidden;
}

.app-card .app-content { order: 1; }
.app-card .app-visual { order: 2; }
.app-card .app-link { order: 3; }

@media (min-width: 768px) {
  .app-card {
    grid-template-columns: 1fr 1.2fr;
    grid-template-rows: 1fr auto;
    align-items: center;
  }

  .app-card .app-content { order: 1; grid-row: 1 / 2; }
  .app-card .app-visual { order: 2; grid-row: 1 / 3; }
  .app-card .app-link { order: 3; grid-row: 2 / 3; grid-column: 1 / 2; }

  .app-card:nth-child(even) {
    grid-template-columns: 1.2fr 1fr;
  }

  .app-card:nth-child(even) .app-content {
    order: 2;
    grid-column: 2 / 3;
  }

  .app-card:nth-child(even) .app-visual {
    order: 1;
    grid-column: 1 / 2;
  }

  .app-card:nth-child(even) .app-link {
    order: 3;
    grid-column: 2 / 3;
  }
}

.app-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lifted);
}

.app-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--card-accent) 0%, transparent 50%);
  opacity: 0.05;
  pointer-events: none;
}

.app-card--qrafter { --card-accent: #5856D6; }
.app-card--junkman { --card-accent: #34C759; }
.app-card--begone { --card-accent: #FF3B30; }

.app-icon {
  display: block;
  width: 72px;
  height: 72px;
  margin-bottom: 1.5rem;
}

.app-icon img {
  width: 72px;
  height: 72px;
  border-radius: 16px;
  box-shadow: var(--shadow-medium);
  transition: transform 0.4s var(--ease-out-back);
}

.app-card:hover .app-icon img {
  transform: scale(1.05) rotate(-2deg);
}

.app-name {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 400;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.app-name a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

.app-name a:hover {
  color: var(--color-accent);
}

.app-tagline {
  color: var(--color-accent);
  font-size: 0.9rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.app-description {
  color: var(--color-text-muted);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.app-features {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.feature-tag {
  background: var(--color-bg-warm);
  padding: 0.4rem 0.85rem;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}

.app-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: gap 0.3s var(--ease-out-expo);
}

.app-link:hover {
  gap: 0.85rem;
}

.app-link svg {
  width: 18px;
  height: 18px;
  transition: transform 0.3s var(--ease-out-expo);
}

.app-link:hover svg {
  transform: translateX(2px);
}

.app-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 280px;
}

.app-screenshot {
  max-width: 100%;
  height: auto;
  transition: transform 0.5s var(--ease-out-expo);
}

.app-card:hover .app-screenshot {
  transform: scale(1.02);
}

/* Philosophy Section */
.philosophy {
  padding: clamp(6rem, 12vw, 10rem) 0;
  background: var(--color-bg-warm);
  position: relative;
}

.philosophy-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.philosophy blockquote {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  line-height: 1.4;
  font-weight: 400;
  letter-spacing: -0.01em;
  margin-bottom: 2rem;
}

.philosophy blockquote em {
  font-style: italic;
  color: var(--color-accent);
}

/* Values Grid */
.values {
  padding: clamp(4rem, 10vw, 8rem) 0;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: clamp(1.5rem, 3vw, 2rem);
  margin-top: clamp(3rem, 6vw, 5rem);
}

.value-card {
  padding: 2rem;
  border: 1px solid var(--color-border);
  border-radius: 16px;
  transition: border-color 0.3s ease, background 0.3s ease;
}

.value-card:hover {
  border-color: var(--color-accent-soft);
  background: var(--color-card);
}

.value-icon {
  width: 48px;
  height: 48px;
  background: var(--color-bg-warm);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: var(--color-accent);
}

.value-card h3 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 400;
  margin-bottom: 0.75rem;
}

.value-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Footer */
footer {
  padding: clamp(4rem, 8vw, 6rem) 0;
  border-top: 1px solid var(--color-border);
}

.footer-content {
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

@media (min-width: 768px) {
  .footer-content {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
  }
}

.footer-brand p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-top: 1rem;
  max-width: 320px;
}

.footer-links {
  display: flex;
  gap: clamp(3rem, 6vw, 5rem);
}

.footer-column h4 {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.footer-column ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-column a {
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s ease;
}

.footer-column a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom p {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

/* Scroll reveal animations (for non-hero sections) */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--ease-out-expo),
        transform 0.8s var(--ease-out-expo);
}

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

/* Responsive adjustments */
@media (max-width: 640px) {
  nav {
    display: none;
  }

  .hero-stats {
    flex-direction: column;
    gap: 1.5rem;
  }

  .hero-decoration {
    display: none;
  }

}