/* ───────────────────────────────────────────
   Custom Properties
   ─────────────────────────────────────────── */
:root {
  --bg: #f4f0e8;
  --bg-card: #ebe7df;
  --text: #2a2520;
  --text-secondary: #7a7265;
  --border: #d1cbc2;
  --nav-bg: rgba(244, 240, 232, 0.9);
  --input-bg: #ebe7df;
  --input-border: #c8c2b8;
  --accent: #b44230;
  --accent-hover: #9a3628;
  --success-bg: #dde8d6;
  --success-text: #3a5a30;
  --serif: 'DM Serif Display', Georgia, 'Times New Roman', serif;
  --mono: 'IBM Plex Mono', 'Courier New', monospace;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

[data-theme="dark"] {
  --bg: #1a1814;
  --bg-card: #242018;
  --text: #e8e2d6;
  --text-secondary: #9a9284;
  --border: #3a3530;
  --nav-bg: rgba(26, 24, 20, 0.9);
  --input-bg: #2a2620;
  --input-border: #4a4438;
  --accent: #d4604e;
  --accent-hover: #e07060;
  --success-bg: #2a3a24;
  --success-text: #b4d4a4;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  transition: background-color 0.4s, color 0.4s;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; color: inherit; }
input, textarea { font-family: inherit; font-size: inherit; }

::selection {
  background: var(--accent);
  color: #fff;
}

/* ───────────────────────────────────────────
   Layout
   ─────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 5rem 0;
}

/* ───────────────────────────────────────────
   Shared
   ─────────────────────────────────────────── */
.mono-label {
  font-family: var(--mono);
  font-size: 0.6875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-secondary);
}

.period {
  color: var(--accent);
}

.divider hr {
  border: none;
  border-top: 1px solid var(--border);
  transition: border-color 0.4s;
}

/* ───────────────────────────────────────────
   Navbar
   ─────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, background-color 0.4s;
}

.navbar.scrolled { border-bottom-color: var(--border); }

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}

.logo {
  font-family: var(--serif);
  font-size: 1.125rem;
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: color 0.2s;
}

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

.theme-toggle {
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: background-color 0.2s;
  font-size: 0.9375rem;
}

.theme-toggle:hover { background: var(--bg-card); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 2rem;
  height: 2rem;
  align-items: center;
  justify-content: center;
}

.hamburger span {
  display: block;
  width: 1.125rem;
  height: 1.5px;
  background: var(--text);
  transition: transform 0.3s, opacity 0.3s;
}

.hamburger.active span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.mobile-nav {
  display: none;
  position: fixed;
  top: 4rem;
  left: 0;
  right: 0;
  z-index: 49;
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 1rem 2rem;
}

.mobile-nav.open { display: block; }

.mobile-nav a {
  display: block;
  padding: 0.75rem 0;
  font-family: var(--mono);
  font-size: 0.8125rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
}

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

/* ───────────────────────────────────────────
   Hero
   ─────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 4rem;
}

/* ── Paper texture overlay ─────────────────── */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  background-image: var(--paper-grain);
  opacity: 0.7;
  transition: opacity 0.4s;
}

[data-theme="dark"] body::before {
  opacity: 0.5;
}

body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  box-shadow: inset 0 0 120px 40px var(--bg);
  transition: box-shadow 0.4s;
}

.hero-intro {
  font-family: var(--mono);
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  letter-spacing: 0.02em;
}

.hero-title {
  font-family: var(--serif);
  font-size: clamp(3rem, 8vw, 6.5rem);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.hero-footer {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-top: 3rem;
}

.hero-line {
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ───────────────────────────────────────────
   About
   ─────────────────────────────────────────── */
.about-layout {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 2rem;
  align-items: start;
}

.about-label-col {
  padding-top: 0.25rem;
}

.about-text p {
  color: var(--text-secondary);
  font-size: 1.0625rem;
  line-height: 1.8;
  margin-bottom: 1rem;
}

/* ───────────────────────────────────────────
   Projects
   ─────────────────────────────────────────── */
.projects {
  margin-top: 3rem;
  display: flex;
  flex-direction: column;
}

.project {
  display: block;
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--border);
  transition: padding-left 0.3s, border-color 0.4s;
  text-decoration: none;
  color: inherit;
}

.project:first-child {
  border-top: 1px solid var(--border);
}

a.project:hover {
  padding-left: 1.5rem;
}

.project.coming-soon {
  opacity: 0.5;
}

.project-top {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.project-number {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
}

.project-status {
  font-family: var(--mono);
  font-size: 0.625rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: 0.2rem 0.625rem;
  border-radius: 3px;
}

.project-status.live {
  border: 1px solid var(--accent);
  color: var(--accent);
}

.project-status.soon {
  border: 1px solid var(--text-secondary);
  color: var(--text-secondary);
}

.project-name {
  font-family: var(--serif);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 400;
  letter-spacing: -0.01em;
  margin-bottom: 0.75rem;
}

.project-desc {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.7;
  max-width: 36rem;
}

.project-cta {
  display: inline-block;
  margin-top: 1rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  transition: letter-spacing 0.2s;
}

a.project:hover .project-cta {
  letter-spacing: 0.18em;
}

/* ───────────────────────────────────────────
   Contact
   ─────────────────────────────────────────── */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.contact-heading {
  font-family: var(--serif);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 400;
  line-height: 1.1;
  margin: 1.5rem 0 1rem;
}

.contact-sub {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.form-input {
  padding: 0.875rem 1rem;
  border: 1px solid var(--input-border);
  background: var(--input-bg);
  color: var(--text);
  font-size: 0.875rem;
  border-radius: 4px;
  outline: none;
  transition: border-color 0.2s, background-color 0.4s;
}

.form-input::placeholder {
  color: var(--text-secondary);
  opacity: 0.5;
}

.form-input:focus {
  border-color: var(--accent);
}

textarea.form-input {
  min-height: 7rem;
  resize: vertical;
}

.btn-send {
  align-self: flex-start;
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.875rem 2rem;
  border: 2px solid var(--accent);
  color: var(--accent);
  border-radius: 4px;
  background: transparent;
  transition: background-color 0.2s, color 0.2s;
}

.btn-send:hover {
  background: var(--accent);
  color: #fff;
}

.btn-send:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.form-success {
  display: none;
  padding: 1rem;
  border: 1px solid var(--accent);
  border-radius: 4px;
  color: var(--success-text);
  background: var(--success-bg);
  font-size: 0.875rem;
  transition: background-color 0.4s, color 0.4s;
}

.form-success.show { display: block; }

/* ───────────────────────────────────────────
   Footer
   ─────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  transition: border-color 0.4s;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-copy, .footer-link {
  font-family: var(--mono);
  font-size: 0.6875rem;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
}

.footer-link { transition: color 0.2s; }
.footer-link:hover { color: var(--text); }

/* ───────────────────────────────────────────
   Privacy Policy
   ─────────────────────────────────────────── */
.policy-page {
  padding-top: 6rem;
  padding-bottom: 4rem;
  min-height: 100vh;
}

.policy-page h1 {
  font-family: var(--serif);
  font-size: 2.5rem;
  font-weight: 400;
  margin-bottom: 0.5rem;
}

.policy-date {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
}

.policy-page h2 {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 400;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

.policy-page h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
}

.policy-page p { color: var(--text-secondary); line-height: 1.75; margin-bottom: 1rem; }
.policy-page ul { color: var(--text-secondary); line-height: 1.75; margin-bottom: 1rem; padding-left: 1.5rem; }
.policy-page li { margin-bottom: 0.25rem; }

/* ───────────────────────────────────────────
   Scroll Reveal
   ─────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ───────────────────────────────────────────
   Responsive
   ─────────────────────────────────────────── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }

  .container { padding: 0 1.25rem; }

  .about-layout {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .contact-layout {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .section { padding: 3.5rem 0; }

  .footer-inner {
    flex-direction: column;
    gap: 0.75rem;
    text-align: center;
  }

  a.project:hover {
    padding-left: 0;
  }
}