/* ==========================================================================
   CODEER STYLE SYSTEM - NATURE-INSPIRED DARK & GREEN THEME
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Fira+Code:wght@400;500&family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
  /* Colors */
  --bg-base: #060a08;
  --bg-surface: #0a120e;
  --bg-surface-elevated: #0f1c16;
  --bg-card: rgba(13, 25, 20, 0.6);
  --bg-card-hover: rgba(13, 25, 20, 0.8);
  --bg-header: rgba(6, 10, 8, 0.75);
  --bg-header-scrolled: rgba(6, 10, 8, 0.9);
  --border-color: rgba(16, 185, 129, 0.15);
  --border-color-hover: rgba(16, 185, 129, 0.3);
  
  --clr-primary: #10b981;        /* Emerald 500 */
  --clr-primary-bright: #34d399; /* Emerald 400 */
  --clr-primary-dark: #065f46;   /* Emerald 800 */
  --clr-accent: #f97316;         /* Orange 500 (Download Button) */
  --clr-accent-hover: #ea580c;   /* Orange 600 */
  --clr-accent-glow: rgba(249, 115, 22, 0.3);
  
  --clr-text: #ecfdf5;           /* Light Mint White */
  --clr-text-muted: #839d91;     /* Muted Green-Gray */
  --clr-text-white: #ffffff;
  
  /* Fonts */
  --ff-sans: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --ff-mono: 'Fira Code', 'Courier New', Courier, monospace;
  
  /* Layout & Animation */
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --radius-lg: 16px;
  --radius-md: 8px;
  --radius-sm: 4px;
}

/* Light Theme Variables & Overrides */
[data-theme="light"] {
  --bg-base: #f4fbf7;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #e6f7ee;
  --bg-card: rgba(230, 247, 238, 0.5);
  --bg-card-hover: rgba(230, 247, 238, 0.85);
  --border-color: rgba(16, 185, 129, 0.2);
  --border-color-hover: rgba(16, 185, 129, 0.4);
  
  --clr-primary: #059669;
  --clr-primary-bright: #10b981;
  --clr-primary-dark: #047857;
  
  --clr-text: #112a20;
  --clr-text-muted: #4e6a5d;
  
  --bg-header: rgba(244, 251, 247, 0.8);
  --bg-header-scrolled: rgba(244, 251, 247, 0.95);
}

[data-theme="light"] body::before {
  background: radial-gradient(circle, rgba(16, 185, 129, 0.12) 0%, rgba(244, 251, 247, 0) 70%);
}

[data-theme="light"] body::after {
  background: radial-gradient(circle, rgba(249, 115, 22, 0.04) 0%, rgba(244, 251, 247, 0) 70%);
}

[data-theme="light"] .header {
  border-bottom-color: rgba(16, 185, 129, 0.1);
}

[data-theme="light"] .header.scrolled {
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .site-title {
  background: linear-gradient(135deg, var(--clr-text) 30%, var(--clr-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

[data-theme="light"] .footer {
  background: #e6f7ee;
  border-top-color: rgba(16, 185, 129, 0.15);
}

[data-theme="light"] .footer-brand-title {
  color: var(--clr-text);
}

[data-theme="light"] .copyright-notice {
  color: var(--clr-text-muted);
}

[data-theme="light"] .footer-link {
  color: var(--clr-text-muted);
}
[data-theme="light"] .footer-link:hover {
  color: var(--clr-primary);
}

[data-theme="light"] .feature-card {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
}
[data-theme="light"] .feature-card:hover {
  box-shadow: 0 20px 40px rgba(16, 185, 129, 0.08);
}
[data-theme="light"] .btn-secondary {
  border-color: var(--border-color-hover);
}
[data-theme="light"] .btn-secondary:hover {
  background: rgba(16, 185, 129, 0.05);
}
[data-theme="light"] .hero-visual .visual-glow-ring {
  background: radial-gradient(circle, rgba(16, 185, 129, 0.25) 0%, rgba(16, 185, 129, 0.05) 60%, rgba(0,0,0,0) 100%);
}

/* Theme Toggle Button Styles */
.theme-toggle-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--clr-text);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s var(--transition-fast);
  padding: 0;
  margin-left: 0.5rem;
}

.theme-toggle-btn:hover {
  border-color: var(--clr-primary-bright);
  color: var(--clr-primary-bright);
  background: rgba(16, 185, 129, 0.05);
  transform: scale(1.05);
}

.theme-toggle-btn svg {
  width: 20px;
  height: 20px;
  transition: transform 0.5s ease;
}

/* Hide moon icon by default in dark mode */
.theme-toggle-btn .moon-icon {
  display: none;
}

/* Toggle visibility based on data-theme attribute on html */
[data-theme="light"] .theme-toggle-btn .sun-icon {
  display: none;
}
[data-theme="light"] .theme-toggle-btn .moon-icon {
  display: block;
}

/* ==========================================================================
   RESET & SYSTEM STYLES
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  background-color: var(--bg-base);
  color: var(--clr-text);
  font-family: var(--ff-sans);
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* Background glows for premium look */
body::before {
  content: '';
  position: absolute;
  top: -10%;
  left: 50%;
  transform: translateX(-50%);
  width: 80vw;
  height: 60vh;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.08) 0%, rgba(6, 10, 8, 0) 70%);
  z-index: -1;
  pointer-events: none;
}

body::after {
  content: '';
  position: absolute;
  top: 50%;
  right: -10%;
  width: 50vw;
  height: 50vh;
  background: radial-gradient(circle, rgba(249, 115, 22, 0.03) 0%, rgba(6, 10, 8, 0) 70%);
  z-index: -1;
  pointer-events: none;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-base);
}
::-webkit-scrollbar-thumb {
  background: var(--bg-surface-elevated);
  border: 2px solid var(--bg-base);
  border-radius: var(--radius-md);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--clr-primary-dark);
}

a {
  color: inherit;
  text-decoration: none;
}

/* ==========================================================================
   ANIMATIONS & KEYFRAMES
   ========================================================================== */
@keyframes float {
  0% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-12px) rotate(2deg); }
  100% { transform: translateY(0px) rotate(0deg); }
}

@keyframes glowPulse {
  0% { filter: drop-shadow(0 0 15px rgba(16, 185, 129, 0.25)); }
  50% { filter: drop-shadow(0 0 35px rgba(16, 185, 129, 0.45)); }
  100% { filter: drop-shadow(0 0 15px rgba(16, 185, 129, 0.25)); }
}

@keyframes scanline {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(100%); }
}

/* ==========================================================================
   NAVBAR / HEADER
   ========================================================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 4rem;
  background: var(--bg-header);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: var(--transition-normal);
}

.header.scrolled {
  height: 70px;
  background: var(--bg-header-scrolled);
  border-bottom-color: rgba(16, 185, 129, 0.25);
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-container svg,
.logo-container img {
  width: 32px;
  height: 32px;
  filter: drop-shadow(0 0 8px rgba(16, 185, 129, 0.4));
  transition: var(--transition-fast);
  object-fit: contain;
}

.logo-container:hover svg,
.logo-container:hover img {
  transform: rotate(-10deg) scale(1.1);
}

.site-title {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, var(--clr-text-white) 30%, var(--clr-primary-bright) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: flex;
  align-items: center;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-link {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--clr-text-muted);
  transition: var(--transition-fast);
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--clr-primary);
  transition: var(--transition-fast);
  border-radius: 2px;
}

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

.nav-link:hover::after {
  width: 100%;
}

.nav-btn-star {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid var(--border-color);
  padding: 0.5rem 1.25rem;
  border-radius: 30px;
  color: var(--clr-primary-bright);
  font-weight: 600;
  transition: var(--transition-fast);
}

.nav-btn-star:hover {
  background: var(--clr-primary);
  color: var(--bg-base);
  border-color: var(--clr-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.nav-btn-star svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* Mobile Menu Button */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--clr-text);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero {
  padding: 10rem 4rem 6rem;
  min-height: 90vh;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 4rem;
  max-width: 1400px;
  margin: 0 auto;
}

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

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.2);
  padding: 0.4rem 1rem;
  border-radius: 20px;
  color: var(--clr-primary-bright);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  letter-spacing: 0.5px;
}

.hero-tag span {
  width: 6px;
  height: 6px;
  background-color: var(--clr-primary-bright);
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 8px var(--clr-primary-bright);
}

.hero-title {
  font-size: 4.5rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -2px;
  margin-bottom: 1.5rem;
}

.hero-title span.gradient {
  background: linear-gradient(135deg, #10b981 0%, #34d399 50%, #6ee7b7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--clr-text-muted);
  margin-bottom: 2.5rem;
  max-width: 580px;
}

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

.btn-download-orange {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background: linear-gradient(135deg, var(--clr-accent) 0%, var(--clr-accent-hover) 100%);
  color: var(--clr-text-white);
  font-size: 1.1rem;
  font-weight: 700;
  padding: 1rem 2.25rem;
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 20px var(--clr-accent-glow), 0 0 0 0 rgba(249, 115, 22, 0.4);
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  border: none;
  cursor: pointer;
}

.btn-download-orange:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 10px 30px rgba(249, 115, 22, 0.5), 0 0 0 6px rgba(249, 115, 22, 0.15);
}

.btn-download-orange:active {
  transform: translateY(-1px) scale(0.98);
}

.btn-download-orange svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
  transition: var(--transition-fast);
}

.btn-download-orange:hover svg {
  transform: translateY(2px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  padding: 1rem 2rem;
  border-radius: var(--radius-lg);
  color: var(--clr-text);
  font-size: 1.1rem;
  font-weight: 600;
  transition: var(--transition-fast);
}

.btn-secondary:hover {
  background: rgba(16, 185, 129, 0.05);
  border-color: var(--clr-primary);
  transform: translateY(-2px);
}

/* Logo Visual Column */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.logo-leaf-large {
  width: 320px;
  height: 320px;
  animation: float 6s ease-in-out infinite, glowPulse 6s ease-in-out infinite;
  z-index: 10;
}

.visual-glow-ring {
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.15) 0%, rgba(16, 185, 129, 0.02) 60%, rgba(0,0,0,0) 100%);
  filter: blur(20px);
  z-index: 1;
  pointer-events: none;
}

/* ==========================================================================
   CODEER INTERACTIVE MOCKUP SECTION
   ========================================================================== */
.preview-section {
  padding: 6rem 4rem;
  max-width: 1400px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--clr-text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* Code Editor Frame */
.editor-frame {
  background: #080f0c;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 0 0 40px rgba(16, 185, 129, 0.05);
  display: grid;
  grid-template-rows: 40px 1fr;
  height: 600px;
  transition: box-shadow 0.3s ease, border-color 0.3s ease;
}

.editor-frame:hover {
  border-color: rgba(16, 185, 129, 0.35);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7), 0 0 50px rgba(16, 185, 129, 0.1);
}

/* Window Titlebar */
.editor-titlebar {
  background: #040907;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1rem;
  border-bottom: 1px solid var(--border-color);
}

.window-dots {
  display: flex;
  gap: 6px;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }

.window-title {
  font-size: 0.85rem;
  color: var(--clr-text-muted);
  font-family: var(--ff-sans);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.window-title svg {
  width: 14px;
  height: 14px;
}

.editor-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Theme selector in window bar */
.theme-selector-container {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.theme-label {
  font-size: 0.75rem;
  color: var(--clr-text-muted);
}

.theme-dropdown {
  background: #0a120e;
  border: 1px solid var(--border-color);
  color: var(--clr-text);
  border-radius: 6px;
  padding: 0.2rem 0.5rem;
  font-size: 0.8rem;
  font-family: var(--ff-sans);
  cursor: pointer;
  outline: none;
  transition: var(--transition-fast);
}

.theme-dropdown:focus {
  border-color: var(--clr-primary);
}

/* Editor Main Body Grid */
.editor-body {
  display: grid;
  grid-template-columns: 48px 200px 1fr;
  height: 100%;
  overflow: hidden;
  background: #080f0c;
}

/* 1. Sidebar (Icons) */
.editor-sidebar {
  background: #040806;
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0.75rem 0;
  justify-content: space-between;
}

.sidebar-top, .sidebar-bottom {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  width: 100%;
  align-items: center;
}

.sidebar-icon {
  color: var(--clr-text-muted);
  width: 24px;
  height: 24px;
  cursor: pointer;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  width: 100%;
}

.sidebar-icon:hover, .sidebar-icon.active {
  color: var(--clr-primary-bright);
}

.sidebar-icon.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 15%;
  height: 70%;
  width: 3px;
  background: var(--clr-primary);
  border-radius: 0 4px 4px 0;
}

.sidebar-icon svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* 2. File Explorer Panel */
.editor-explorer {
  background: #060a08;
  border-right: 1px solid var(--border-color);
  padding: 1rem 0;
  display: flex;
  flex-direction: column;
}

.explorer-header {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 700;
  color: var(--clr-text-muted);
  padding: 0 1.25rem;
  margin-bottom: 0.75rem;
}

.file-list {
  list-style: none;
}

.file-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1.25rem;
  font-size: 0.85rem;
  color: var(--clr-text-muted);
  cursor: pointer;
  transition: var(--transition-fast);
}

.file-item:hover {
  background: rgba(16, 185, 129, 0.05);
  color: var(--clr-text);
}

.file-item.active {
  background: rgba(16, 185, 129, 0.08);
  color: var(--clr-primary-bright);
  border-right: 2px solid var(--clr-primary);
}

.file-item svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* 3. Workspace (Code Workspace & Terminal) */
.editor-workspace {
  display: grid;
  grid-template-rows: 35px 1fr 150px;
  height: 100%;
  overflow: hidden;
}

/* Tabs Bar */
.workspace-tabs {
  background: #060a08;
  display: flex;
  border-bottom: 1px solid var(--border-color);
  overflow-x: auto;
}

.tab {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0 1.25rem;
  font-size: 0.85rem;
  color: var(--clr-text-muted);
  border-right: 1px solid var(--border-color);
  background: #060a08;
  cursor: pointer;
  user-select: none;
  transition: var(--transition-fast);
}

.tab.active {
  background: #080f0c;
  color: var(--clr-text);
  border-bottom: 2px solid var(--clr-primary);
}

.tab-close {
  font-size: 0.75rem;
  opacity: 0.5;
  transition: opacity 0.2s;
}

.tab:hover .tab-close {
  opacity: 1;
}

/* Code Output Area */
.code-area {
  display: flex;
  overflow: auto;
  font-family: var(--ff-mono);
  font-size: 0.9rem;
  line-height: 1.5;
  padding: 1rem 0;
  position: relative;
  background: inherit; /* will be changed by editor theme class */
}

.line-numbers {
  width: 48px;
  text-align: right;
  padding-right: 1rem;
  color: rgba(16, 185, 129, 0.25);
  user-select: none;
}

.code-content {
  flex-grow: 1;
  white-space: pre;
  color: #c9d1d9;
  outline: none;
}

/* Syntax Highlighting Classes for Codeer Nature Theme */
.code-content .keyword { color: #ff7b72; font-weight: 500; }
.code-content .string { color: #a5d6ff; }
.code-content .comment { color: #8b949e; font-style: italic; }
.code-content .function { color: #d2a8ff; }
.code-content .variable { color: #ffa657; }
.code-content .class { color: #f2cc60; }
.code-content .number { color: #79c0ff; }
.code-content .operator { color: #ff7b72; }

/* Interactive Terminal Panel */
.terminal-panel {
  background: #040706;
  border-top: 1px solid var(--border-color);
  display: grid;
  grid-template-rows: 30px 1fr;
  font-family: var(--ff-mono);
  overflow: hidden;
}

.terminal-header {
  background: #030504;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1rem;
  border-bottom: 1px solid rgba(16, 185, 129, 0.08);
}

.terminal-tabs {
  display: flex;
  gap: 1rem;
}

.terminal-tab-title {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--clr-primary-bright);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.terminal-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.btn-terminal-run {
  background: rgba(249, 115, 22, 0.15);
  border: 1px solid rgba(249, 115, 22, 0.4);
  color: var(--clr-accent);
  border-radius: 4px;
  padding: 0.15rem 0.6rem;
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.btn-terminal-run:hover {
  background: var(--clr-accent);
  color: var(--clr-text-white);
  box-shadow: 0 0 10px rgba(249, 115, 22, 0.4);
}

.terminal-body {
  padding: 0.75rem 1rem;
  font-size: 0.8rem;
  color: var(--clr-text-muted);
  overflow-y: auto;
  line-height: 1.4;
  white-space: pre-wrap;
}

.terminal-line {
  margin-bottom: 0.25rem;
}
.terminal-line.cmd {
  color: #34d399;
}
.terminal-line.success {
  color: #10b981;
  font-weight: 600;
}
.terminal-line.error {
  color: #f87171;
}

/* ==========================================================================
   EDITOR THEME MODIFIERS
   ========================================================================== */
/* 1. Forest Dark (Default) */
.editor-frame.theme-forest {
  --bg-editor: #080f0c;
  --bg-sidebar: #040806;
  --bg-explorer: #060a08;
  --border: rgba(16, 185, 129, 0.15);
}
.theme-forest .code-area { background: #080f0c; }
.theme-forest .keyword { color: #34d399; }
.theme-forest .string { color: #f97316; }
.theme-forest .comment { color: #4b6b5c; }
.theme-forest .function { color: #10b981; }

/* 2. Emerald Night */
.editor-frame.theme-emerald {
  --bg-editor: #022c22;
  --bg-sidebar: #021e17;
  --bg-explorer: #042f2e;
  --border: rgba(52, 211, 153, 0.25);
}
.theme-emerald .code-area { background: #022c22; }
.theme-emerald .code-content { color: #e6f4f1; }
.theme-emerald .keyword { color: #34d399; }
.theme-emerald .string { color: #fbbf24; }
.theme-emerald .comment { color: #115e59; }
.theme-emerald .function { color: #06b6d4; }
.theme-emerald .line-numbers { color: rgba(52, 211, 153, 0.3); }

/* 3. Velvet Dark (Rich purple elements with green theme context) */
.editor-frame.theme-velvet {
  --bg-editor: #0f0b15;
  --bg-sidebar: #09060d;
  --bg-explorer: #0c0811;
  --border: rgba(139, 92, 246, 0.25);
}
.theme-velvet .code-area { background: #0f0b15; }
.theme-velvet .code-content { color: #f5f3ff; }
.theme-velvet .keyword { color: #a78bfa; }
.theme-velvet .string { color: #10b981; }
.theme-velvet .comment { color: #6d28d9; }
.theme-velvet .function { color: #f472b6; }
.theme-velvet .line-numbers { color: rgba(167, 139, 250, 0.3); }

/* 4. Leaf Light */
.editor-frame.theme-leaf-light {
  --bg-editor: #f4fbf7;
  --bg-sidebar: #e6f4eb;
  --bg-explorer: #edf7f1;
  --border: rgba(16, 185, 129, 0.2);
}
.theme-leaf-light .code-area { background: #f4fbf7; }
.theme-leaf-light .code-content { color: #064e3b; }
.theme-leaf-light .keyword { color: #047857; font-weight: 600; }
.theme-leaf-light .string { color: #b45309; }
.theme-leaf-light .comment { color: #9ca3af; }
.theme-leaf-light .function { color: #1d4ed8; }
.theme-leaf-light .line-numbers { color: rgba(4, 120, 87, 0.3); }

/* Apply variable overrides */
.editor-frame.theme-emerald,
.editor-frame.theme-velvet,
.editor-frame.theme-leaf-light {
  background: var(--bg-editor);
  border-color: var(--border);
}
.editor-frame.theme-emerald .editor-body,
.editor-frame.theme-velvet .editor-body,
.editor-frame.theme-leaf-light .editor-body {
  background: var(--bg-editor);
}
.editor-frame.theme-emerald .editor-sidebar,
.editor-frame.theme-velvet .editor-sidebar,
.editor-frame.theme-leaf-light .editor-sidebar {
  background: var(--bg-sidebar);
}
.editor-frame.theme-emerald .editor-explorer,
.editor-frame.theme-velvet .editor-explorer,
.editor-frame.theme-leaf-light .editor-explorer {
  background: var(--bg-explorer);
}
.editor-frame.theme-emerald .workspace-tabs,
.editor-frame.theme-velvet .workspace-tabs,
.editor-frame.theme-leaf-light .workspace-tabs {
  background: var(--bg-explorer);
}

/* ==========================================================================
   FEATURES / BENEFITS
   ========================================================================== */
.features {
  padding: 6rem 4rem;
  background: linear-gradient(180deg, var(--bg-base) 0%, var(--bg-surface) 100%);
  position: relative;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2.5rem;
  max-width: 1400px;
  margin: 0 auto;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 3rem 2rem;
  border-radius: var(--radius-lg);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--clr-primary), transparent);
  transform: translateX(-100%);
  transition: var(--transition-normal);
}

.feature-card:hover::before {
  transform: translateX(100%);
}

.feature-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-color-hover);
  background: var(--bg-card-hover);
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.5), 0 0 25px rgba(16, 185, 129, 0.05);
}

.feature-icon-wrapper {
  background: rgba(16, 185, 129, 0.1);
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-primary-bright);
  margin-bottom: 2rem;
  border: 1px solid rgba(16, 185, 129, 0.15);
  transition: var(--transition-fast);
}

.feature-card:hover .feature-icon-wrapper {
  background: var(--clr-primary);
  color: var(--bg-base);
  transform: scale(1.05) rotate(5deg);
}

.feature-icon-wrapper svg {
  width: 28px;
  height: 28px;
  fill: currentColor;
}

.feature-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.feature-description {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--clr-text-muted);
}

/* ==========================================================================
   DOWNLOAD MODAL
   ========================================================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(3, 5, 4, 0.85);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.modal-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  width: 90%;
  max-width: 580px;
  border-radius: 20px;
  padding: 3rem;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.8), 0 0 50px rgba(16, 185, 129, 0.15);
  transform: scale(0.9);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
}

.modal-overlay.active .modal-card {
  transform: scale(1);
}

.modal-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-text-muted);
  font-size: 1.25rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.modal-close:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--clr-text);
  transform: rotate(90deg);
}

.modal-title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.modal-title span {
  color: var(--clr-primary-bright);
}

.modal-subtitle {
  color: var(--clr-text-muted);
  font-size: 0.95rem;
  margin-bottom: 2rem;
}

.download-options {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.download-option-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(16, 185, 129, 0.04);
  border: 1px solid var(--border-color);
  padding: 1.25rem;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.download-option-btn:hover {
  background: rgba(16, 185, 129, 0.08);
  border-color: var(--clr-primary);
  transform: translateX(4px);
}

.option-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.option-icon {
  width: 40px;
  height: 40px;
  background: rgba(16, 185, 129, 0.1);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-primary-bright);
  transition: var(--transition-fast);
}

.download-option-btn:hover .option-icon {
  background: var(--clr-primary);
  color: var(--bg-base);
}

.option-icon svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.option-details {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.option-name {
  font-weight: 700;
  font-size: 1rem;
  color: var(--clr-text);
}

.option-meta {
  font-size: 0.8rem;
  color: var(--clr-text-muted);
}

.option-arrow {
  color: var(--clr-primary-bright);
  font-size: 1.25rem;
  transition: transform 0.2s ease;
}

.download-option-btn:hover .option-arrow {
  transform: translateX(4px);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
  background: #030605;
  border-top: 1px solid var(--border-color);
  padding: 4rem 4rem 2rem;
  position: relative;
  overflow: hidden;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 3rem;
  flex-wrap: wrap;
  gap: 2rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.footer-brand-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--clr-text-white);
}

.footer-brand-logo {
  width: 28px;
  height: 28px;
}

.footer-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.footer-link {
  color: var(--clr-text-muted);
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-link:hover {
  color: var(--clr-primary-bright);
}

.footer-link svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.footer-divider {
  height: 1px;
  background: rgba(16, 185, 129, 0.1);
  margin-bottom: 2rem;
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 2.5rem;
}

.copyright-notice {
  font-size: 0.85rem;
  color: var(--clr-text-muted);
  max-width: 600px;
  line-height: 1.5;
}

.copyright-notice strong {
  color: var(--clr-text);
  font-weight: 500;
}

/* Italic responsive h1 title Codeer at the very bottom */
.footer-large-title {
  font-family: var(--ff-sans);
  font-size: clamp(3.5rem, 12vw, 10rem);
  font-weight: 900;
  font-style: italic;
  line-height: 0.8;
  letter-spacing: -4px;
  background: linear-gradient(180deg, rgba(16, 185, 129, 0.18) 0%, rgba(16, 185, 129, 0.01) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  user-select: none;
  margin-bottom: -1rem;
  width: 100%;
  text-align: center;
}

/* ==========================================================================
   RESPONSIVE DESIGN (MEDIA QUERIES)
   ========================================================================== */
@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    padding: 8rem 2rem 4rem;
    gap: 3rem;
  }
  .hero-content {
    align-items: center;
  }
  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }
  .hero-actions {
    justify-content: center;
  }
  .hero-visual {
    order: -1; /* Place logo above text on mobile/tablet */
  }
  .logo-leaf-large {
    width: 240px;
    height: 240px;
  }
  .preview-section {
    padding: 4rem 2rem;
  }
  .features {
    padding: 4rem 2rem;
  }
  .header {
    padding: 0 2rem;
  }
  .footer {
    padding: 3rem 2rem 1.5rem;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 3.25rem;
    letter-spacing: -1px;
  }
  .section-title {
    font-size: 2.25rem;
  }
  .editor-frame {
    height: 520px;
  }
  .editor-body {
    grid-template-columns: 48px 1fr; /* Hide file explorer on small screens to save space */
  }
  .editor-explorer {
    display: none;
  }
  .nav-menu {
    display: none; /* Can toggle via Javascript class or remain simple header for request details */
  }
  .menu-toggle {
    display: block;
  }
  .footer-top {
    flex-direction: column;
    align-items: center;
  }
  .footer-links {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2.5rem;
  }
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  .btn-download-orange, .btn-secondary {
    width: 100%;
    justify-content: center;
  }
  .editor-frame {
    height: 460px;
  }
  .modal-card {
    padding: 2rem 1.5rem;
  }
  .modal-title {
    font-size: 1.5rem;
  }
}