/* ==========================================================================
   UNBRANDED TEMPLATE 2 - NEO-ARCHITECTURAL & EDITORIAL DESIGN SYSTEM
   ========================================================================== */

/* --- Google Fonts Import --- */
@import url('https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=Sora:wght@300;400;500;600;700;800&family=Space+Mono:wght@400;700&display=swap');

/* --- Color Palette & Variables --- */
:root {
  /* Editorial Emerald & Warm Amber Gold Palette */
  --hue-emerald: 162;
  --hue-gold: 38;

  --color-accent: hsl(var(--hue-emerald), 75%, 40%);
  --color-accent-hover: hsl(var(--hue-emerald), 80%, 32%);
  --color-gold: hsl(var(--hue-gold), 85%, 55%);
  --color-accent-alpha: hsla(var(--hue-emerald), 75%, 40%, 0.08);

  /* Light Theme - Warm Cream / Editorial Monochromes */
  --bg-body: #F9F8F3;
  --bg-surface: #FFFFFF;
  --bg-surface-elevated: #F2F0E8;
  --bg-dark-contrast: #121413;

  --text-main: #181A19;
  --text-muted: #626663;
  --text-inverse: #F9F8F3;

  --border-color: #E2DFD4;
  --border-dark: #181A19;
  
  --font-serif: 'Instrument Serif', Georgia, serif;
  --font-sans: 'Sora', sans-serif;
  --font-mono: 'Space Mono', monospace;

  --radius-sharp: 0px;
  --radius-subtle: 4px;
  --radius-asymmetric: 24px 0px 24px 0px;
  
  --transition-fast: 0.2s cubic-bezier(0.25, 1, 0.5, 1);
  --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --- Dark Theme Variables Override --- */
[data-theme="dark"] {
  --bg-body: #0E100F;
  --bg-surface: #151817;
  --bg-surface-elevated: #1F2321;
  --bg-dark-contrast: #F9F8F3;

  --text-main: #F4F3ED;
  --text-muted: #9AA09C;
  --text-inverse: #0E100F;

  --border-color: #282C29;
  --border-dark: #F4F3ED;

  --color-accent: hsl(var(--hue-emerald), 70%, 48%);
  --color-accent-alpha: hsla(var(--hue-emerald), 70%, 48%, 0.15);
}

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

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color var(--transition-smooth), color var(--transition-smooth);
  -webkit-font-smoothing: antialiased;
}

/* --- Typography System --- */
.h1, .h2, .h3, .h4 {
  color: var(--text-main);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.h1 {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 6vw + 1rem, 5.5rem);
  font-weight: 400;
}

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

.h2 {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 4vw + 0.5rem, 3.8rem);
  font-weight: 400;
}

.h2 em {
  font-style: italic;
  color: var(--color-accent);
}

.h3 {
  font-family: var(--font-sans);
  font-size: clamp(1.2rem, 2vw, 1.6rem);
  font-weight: 600;
}

.mono-tag {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  display: inline-block;
  margin-bottom: 0.75rem;
}

/* --- Layout Container --- */
.container {
  width: 92%;
  max-width: 1280px;
  margin: 0 auto;
}

/* --- Header / Navigation --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.5rem 0;
  transition: all var(--transition-smooth);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  padding: 1rem 0;
  background-color: rgba(249, 248, 243, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--border-color);
}

[data-theme="dark"] .navbar.scrolled {
  background-color: rgba(14, 16, 15, 0.85);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-main);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 2px 6px;
  border: 1px solid var(--text-main);
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  list-style: none;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

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

/* Custom Geometric Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.9rem 1.8rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  border-radius: var(--radius-subtle);
  position: relative;
  overflow: hidden;
}

.btn-solid {
  background-color: var(--text-main);
  color: var(--bg-body);
  border: 1px solid var(--text-main);
}

.btn-solid:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: #FFFFFF;
  transform: translateY(-2px);
}

.btn-outline {
  background-color: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn-outline:hover {
  border-color: var(--text-main);
  background-color: var(--bg-surface-elevated);
}

.btn-icon {
  width: 44px;
  height: 44px;
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-icon:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* --- Hero Section (Split Asymmetric) --- */
.hero-section {
  padding-top: 11rem;
  padding-bottom: 6rem;
  border-bottom: 1px solid var(--border-color);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
  align-items: center;
}

.hero-left {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero-subtext {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-top: 1.75rem;
  margin-bottom: 2.5rem;
  max-width: 560px;
}

.hero-cta-box {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

/* Layered Stack Visual on Right */
.hero-right-visual {
  position: relative;
  height: 440px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.stacked-card {
  position: absolute;
  width: 85%;
  height: 280px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 2rem;
  transition: all var(--transition-smooth);
}

.card-1 {
  transform: rotate(-6deg) translateY(-20px);
  z-index: 1;
  background-color: var(--bg-surface-elevated);
}

.card-2 {
  transform: rotate(3deg) translateY(10px);
  z-index: 2;
  border-color: var(--color-accent);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.08);
}

.hero-right-visual:hover .card-1 {
  transform: rotate(-10deg) translateY(-35px);
}

.hero-right-visual:hover .card-2 {
  transform: rotate(6deg) translateY(20px);
}

.card-code-header {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  border-bottom: 1px stroke var(--border-color);
  padding-bottom: 0.5rem;
}

.card-bold-title {
  font-family: var(--font-serif);
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

/* --- Marquee Ticker Banner --- */
.marquee-container {
  overflow: hidden;
  white-space: nowrap;
  background-color: var(--text-main);
  color: var(--bg-body);
  padding: 1rem 0;
  border-y: 1px solid var(--text-main);
}

.marquee-content {
  display: inline-block;
  animation: marquee 25s linear infinite;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

.marquee-item {
  display: inline-flex;
  align-items: center;
  gap: 2rem;
  margin-right: 2rem;
}

.marquee-star {
  color: var(--color-gold);
}

@keyframes marquee {
  0% { transform: translateX(0%); }
  100% { transform: translateX(-50%); }
}

/* --- Section Formatting --- */
.section {
  padding: 7rem 0;
  border-bottom: 1px solid var(--border-color);
}

.section-title-wrap {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 4.5rem;
  flex-wrap: wrap;
  gap: 2rem;
}

/* --- Editorial Numbered Rows Section (01, 02, 03) --- */
.editorial-rows {
  display: flex;
  flex-direction: column;
}

.editorial-row {
  display: grid;
  grid-template-columns: 80px 1fr 1.5fr;
  padding: 3rem 0;
  border-top: 1px solid var(--border-color);
  align-items: start;
  transition: background-color var(--transition-fast);
}

.editorial-row:last-child {
  border-bottom: 1px solid var(--border-color);
}

.editorial-row:hover {
  background-color: var(--color-accent-alpha);
}

.row-num {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  color: var(--color-accent);
  font-weight: 700;
}

.row-title-box {
  padding-right: 2rem;
}

.row-desc-box {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

/* --- Horizontal Cards Slider / Showcase --- */
.slider-controls {
  display: flex;
  gap: 0.75rem;
}

.slider-track-wrapper {
  overflow-x: auto;
  scroll-behavior: smooth;
  padding-bottom: 1.5rem;
  scrollbar-width: none; /* Firefox */
}

.slider-track-wrapper::-webkit-scrollbar {
  display: none; /* Chrome/Safari */
}

.slider-track {
  display: flex;
  gap: 2rem;
  width: max-content;
}

.slide-card {
  width: 360px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 2.25rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 380px;
  transition: all var(--transition-fast);
}

.slide-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
}

.slide-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-gold);
  text-transform: uppercase;
}

.slide-body {
  margin-top: auto;
}

/* --- Split Checklist Section --- */
.split-checklist-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.checklist-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  list-style: none;
}

.checklist-item {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  padding: 1.25rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  transition: border-color var(--transition-fast);
}

.checklist-item:hover {
  border-color: var(--color-accent);
}

.check-icon {
  width: 24px;
  height: 24px;
  background-color: var(--color-accent-alpha);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.85rem;
  font-weight: bold;
}

/* --- Quote Spotlight --- */
.quote-section {
  padding: 8rem 0;
  background-color: var(--bg-dark-contrast);
  color: var(--text-inverse);
  text-align: center;
}

.quote-box {
  max-width: 900px;
  margin: 0 auto;
}

.quote-text {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 3.5vw, 3.2rem);
  line-height: 1.25;
  font-style: italic;
  margin-bottom: 2.5rem;
}

.quote-author {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.8;
}

/* --- Minimal Form Section --- */
.form-split-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 5rem;
  align-items: center;
}

.underline-form {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.underline-input {
  width: 100%;
  padding: 0.8rem 0;
  background: transparent;
  border: none;
  border-bottom: 2px solid var(--border-color);
  color: var(--text-main);
  font-size: 1.1rem;
  transition: border-color var(--transition-fast);
}

.underline-input:focus {
  outline: none;
  border-bottom-color: var(--color-accent);
}

/* --- Footer --- */
.footer {
  padding: 5rem 0 3rem 0;
  background-color: var(--bg-body);
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 3rem;
  padding-bottom: 4rem;
  border-bottom: 1px solid var(--border-color);
}

.footer-bottom {
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 1rem;
}

/* --- Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* --- Mobile Responsiveness --- */
@media (max-width: 992px) {
  .hero-grid, .split-checklist-grid, .form-split-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .editorial-row {
    grid-template-columns: 50px 1fr;
    gap: 1rem;
  }
  .row-desc-box {
    grid-column: 2 / -1;
    margin-top: 1rem;
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .footer-top {
    grid-template-columns: 1fr;
  }
}