/* ==========================================================================
   ALEXIS TOBÓN - HOME & SHOWCASE STYLES
   Modern Glassmorphism, Ultra-Responsive Browser Mockups & Scaled Previews
   ========================================================================== */

:root {
  /* Color Palette - Dark Theme (Default) */
  --bg-primary: #090d16;
  --bg-secondary: #0f172a;
  --bg-card: rgba(15, 23, 42, 0.75);
  --bg-card-hover: rgba(30, 41, 59, 0.85);
  --bg-glass: rgba(15, 23, 42, 0.7);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.18);
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --accent-primary: #38bdf8;       /* Cyan */
  --accent-secondary: #10b981;     /* Emerald */
  --accent-gradient: linear-gradient(135deg, #38bdf8 0%, #818cf8 50%, #c084fc 100%);
  --accent-emerald-grad: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
  
  --browser-bg: #0b1120;
  --browser-header-bg: #0f172a;
  --browser-address-bg: rgba(30, 41, 59, 0.75);
  --browser-border: rgba(255, 255, 255, 0.1);
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -4px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 35px -5px rgba(56, 189, 248, 0.15);

  --font-main: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Light Theme Variables */
[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-hover: rgba(255, 255, 255, 0.95);
  --bg-glass: rgba(255, 255, 255, 0.8);
  --border-color: rgba(0, 0, 0, 0.08);
  --border-hover: rgba(0, 0, 0, 0.16);
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  
  --browser-bg: #f1f5f9;
  --browser-header-bg: #e2e8f0;
  --browser-address-bg: #ffffff;
  --browser-border: rgba(0, 0, 0, 0.1);
  
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 15px 30px rgba(0, 0, 0, 0.08);
  --shadow-glow: 0 0 30px rgba(56, 189, 248, 0.12);
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  background-color: var(--bg-primary);
  transition: background-color var(--transition-normal), color var(--transition-normal);
  -webkit-text-size-adjust: 100%;
}

/* Background Ambient Glows & Grid */
.bg-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(130px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

.bg-glow-1 {
  width: min(500px, 90vw);
  height: min(500px, 90vw);
  top: -100px;
  left: -100px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.25) 0%, transparent 70%);
}

.bg-glow-2 {
  width: min(600px, 90vw);
  height: min(600px, 90vw);
  top: 35%;
  right: -150px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.2) 0%, transparent 70%);
}

.bg-pattern {
  position: fixed;
  inset: 0;
  background-size: 32px 32px;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  pointer-events: none;
  z-index: 0;
}

[data-theme="light"] .bg-pattern {
  background-image: 
    linear-gradient(to right, rgba(0, 0, 0, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 0, 0, 0.03) 1px, transparent 1px);
}

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

/* Typography Helpers */
.gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ==========================================================================
   HEADER & NAVIGATION
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background-color: var(--bg-glass);
  border-bottom: 1px solid var(--border-color);
  transition: all var(--transition-fast);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.25rem;
  gap: 1rem;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-primary);
  flex-shrink: 0;
}

.logo-avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 0.75rem;
  background: var(--accent-gradient);
  color: #ffffff;
  font-weight: 800;
  font-size: 0.95rem;
  box-shadow: 0 2px 10px rgba(56, 189, 248, 0.3);
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-weight: 700;
  font-size: 1.05rem;
  line-height: 1.2;
}

.brand-domain {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.925rem;
  transition: color var(--transition-fast);
  position: relative;
}

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent-primary);
  border-radius: 2px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

/* Status Pill */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.25);
  padding: 0.3rem 0.7rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #34d399;
  white-space: nowrap;
}

.status-dot {
  width: 7px;
  height: 7px;
  background-color: #10b981;
  border-radius: 50%;
  box-shadow: 0 0 8px #10b981;
  animation: pulse-ring 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse-ring {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

/* Buttons */
.btn-icon {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.btn-icon:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}

[data-theme="dark"] .sun-icon { display: block; }
[data-theme="dark"] .moon-icon { display: none; }
[data-theme="light"] .sun-icon { display: none; }
[data-theme="light"] .moon-icon { display: block; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.4rem;
  border-radius: 0.75rem;
  font-weight: 600;
  font-size: 0.925rem;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: #38bdf8;
  color: #090d16;
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(56, 189, 248, 0.35);
}

.btn-primary:hover {
  background: #7dd3fc;
  box-shadow: 0 6px 20px rgba(56, 189, 248, 0.5);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border-color: var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-color);
}

.btn-outline:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.btn-large {
  padding: 0.9rem 1.8rem;
  font-size: 1rem;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
  padding: clamp(2.5rem, 6vw, 5rem) 0 clamp(2rem, 5vw, 3.5rem);
}

.hero-container {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 3rem;
  align-items: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.tag-accent {
  background: rgba(56, 189, 248, 0.12);
  color: var(--accent-primary);
  border: 1px solid rgba(56, 189, 248, 0.25);
  padding: 0.25rem 0.65rem;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.8rem;
}

.separator {
  color: var(--text-muted);
}

.hero-title {
  font-size: clamp(1.85rem, 5.5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

.hero-subtitle {
  font-size: clamp(0.95rem, 2.5vw, 1.125rem);
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 580px;
  margin-bottom: 2rem;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.stat-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  padding: 1.25rem 1.5rem;
  border-radius: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), border-color var(--transition-normal);
}

.stat-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-hover);
}

.stat-number {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 800;
  color: var(--text-primary);
  font-family: var(--font-mono);
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ==========================================================================
   PROJECTS SECTION
   ========================================================================== */
.projects-section {
  padding: clamp(2.5rem, 6vw, 5rem) 0;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto clamp(2rem, 5vw, 4rem);
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-primary);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: clamp(0.925rem, 2.5vw, 1.05rem);
  color: var(--text-secondary);
  line-height: 1.65;
}

.projects-list {
  display: flex;
  flex-direction: column;
  gap: clamp(2.5rem, 6vw, 4.5rem);
}

/* Project Showcase Card */
.project-showcase {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: 2.5rem;
  align-items: center;
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: 1.5rem;
  padding: 2.25rem;
  box-shadow: var(--shadow-lg);
  transition: border-color var(--transition-normal);
}

.project-showcase:hover {
  border-color: var(--border-hover);
}

.project-showcase.reversed {
  grid-template-columns: 1fr 420px;
}

.project-showcase.reversed .project-info {
  order: 2;
}

.project-showcase.reversed .browser-mockup-wrapper {
  order: 1;
}

.project-info {
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
  min-width: 0;
}

.project-meta-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.badge {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.35rem 0.75rem;
  border-radius: 6px;
  white-space: nowrap;
}

.badge-brand {
  background: rgba(56, 189, 248, 0.15);
  color: #38bdf8;
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.badge-emerald {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-live-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: #10b981;
  white-space: nowrap;
}

.pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #10b981;
  box-shadow: 0 0 8px #10b981;
}

.project-title {
  font-size: clamp(1.5rem, 4.5vw, 2rem);
  font-weight: 800;
  line-height: 1.2;
}

.project-title a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.project-title a:hover {
  color: var(--accent-primary);
}

.project-domain {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: -0.65rem;
}

.project-description {
  font-size: clamp(0.875rem, 2.2vw, 0.975rem);
  color: var(--text-secondary);
  line-height: 1.65;
}

.project-tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.tag {
  font-size: 0.75rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  color: var(--text-secondary);
  white-space: nowrap;
}

[data-theme="light"] .tag {
  background: rgba(0, 0, 0, 0.04);
}

.project-links {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.preview-tips {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.preview-tips svg {
  flex-shrink: 0;
  margin-top: 2px;
}

/* ==========================================================================
   BROWSER MOCKUP & LIVE IFRAME VIEWER
   ========================================================================== */
.browser-mockup-wrapper {
  width: 100%;
  min-width: 0;
}

.browser-window {
  background-color: var(--browser-bg);
  border: 1px solid var(--browser-border);
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  position: relative;
}

/* Browser Window Header / Chrome */
.browser-header {
  background-color: var(--browser-header-bg);
  border-bottom: 1px solid var(--browser-border);
  padding: 0.65rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.window-dots {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  display: inline-block;
}

.dot-close { background-color: #ff5f56; }
.dot-minimize { background-color: #ffbd2e; }
.dot-maximize { background-color: #27c93f; }

.browser-address-bar {
  flex: 1;
  min-width: 0;
  background-color: var(--browser-address-bg);
  border: 1px solid var(--browser-border);
  border-radius: 0.5rem;
  padding: 0.35rem 0.65rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.775rem;
  color: var(--text-secondary);
}

.ssl-icon {
  color: #10b981;
  flex-shrink: 0;
}

.url-text {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
  min-width: 0;
}

.copy-url-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  padding: 2px;
  border-radius: 4px;
  transition: color var(--transition-fast);
  flex-shrink: 0;
}

.copy-url-btn:hover {
  color: var(--text-primary);
}

/* Controls */
.browser-controls {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-shrink: 0;
}

.device-toggle-group {
  display: flex;
  align-items: center;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--browser-border);
  border-radius: 6px;
  padding: 2px;
}

.device-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: all var(--transition-fast);
}

.device-btn:hover {
  color: var(--text-primary);
}

.device-btn.active {
  background: rgba(255, 255, 255, 0.15);
  color: var(--text-primary);
}

[data-theme="light"] .device-btn.active {
  background: #ffffff;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.control-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  cursor: pointer;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.control-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--border-color);
}

/* Browser Viewport & Scaling */
.browser-viewport {
  position: relative;
  width: 100%;
  background-color: #000000;
  overflow: hidden;
}

/* Desktop View Defaults */
.browser-window[data-view="desktop"] .browser-viewport {
  height: 480px;
}

.browser-window[data-view="desktop"] .iframe-scaler {
  width: 1280px;
  height: 800px;
  transform-origin: 0 0;
  transform: scale(var(--scale, 0.5));
  position: absolute;
  top: 0;
  left: 0;
}

.browser-window[data-view="desktop"] .preview-iframe {
  width: 1280px;
  height: 800px;
  border: none;
  display: block;
}

/* Mobile View Defaults */
.browser-window[data-view="mobile"] .browser-viewport {
  display: flex;
  align-items: center;
  justify-content: center;
  background: #050811;
  padding: 1rem;
  height: 540px;
}

.browser-window[data-view="mobile"] .iframe-scaler {
  width: min(390px, 100%);
  height: 100%;
  border-radius: 22px;
  border: 5px solid #1e293b;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.65);
  overflow: hidden;
  transform: none; /* No artificial downscaling: responsive website adapts naturally */
  position: relative;
  background: #000000;
}

.browser-window[data-view="mobile"] .preview-iframe {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}

/* Iframe Loading Overlay */
.iframe-loader {
  position: absolute;
  inset: 0;
  background-color: var(--browser-bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  z-index: 10;
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.iframe-loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.spinner {
  width: 28px;
  height: 28px;
  border: 2px solid rgba(56, 189, 248, 0.2);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Interactive Barrier (Prevents wheel/scroll capture until tapped) */
.interaction-barrier {
  position: absolute;
  inset: 0;
  z-index: 5;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(9, 13, 22, 0.45);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  transition: opacity var(--transition-fast), visibility var(--transition-fast);
}

.interaction-barrier:hover {
  background: rgba(9, 13, 22, 0.3);
}

.barrier-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(56, 189, 248, 0.4);
  color: #ffffff;
  padding: 0.65rem 1.25rem;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 600;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.5);
  pointer-events: none;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.interaction-barrier:hover .barrier-pill,
.interaction-barrier:active .barrier-pill {
  transform: scale(1.05);
  border-color: var(--accent-primary);
}

.browser-window.interactive .interaction-barrier {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* Floating Exit Interactive Button */
.interactive-exit-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 20;
  background: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
  padding: 0.35rem 0.8rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  display: none;
  align-items: center;
  gap: 0.35rem;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  transition: all var(--transition-fast);
}

.interactive-exit-btn:hover {
  background: rgba(30, 41, 59, 0.95);
  border-color: var(--accent-primary);
}

.browser-window.interactive .interactive-exit-btn {
  display: inline-flex;
}

/* ==========================================================================
   ABOUT & TECH STACK SECTION
   ========================================================================== */
.about-section {
  padding: clamp(2.5rem, 5vw, 4rem) 0;
}

.about-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: 1.5rem;
  padding: 3rem;
  box-shadow: var(--shadow-lg);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 3.5rem;
  align-items: center;
}

.about-title {
  font-size: clamp(1.4rem, 4vw, 2.25rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0.5rem 0 1.25rem;
  line-height: 1.25;
}

.about-text-content p {
  color: var(--text-secondary);
  font-size: clamp(0.9rem, 2.2vw, 1.05rem);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.skills-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.skill-chip {
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.2);
  color: var(--accent-primary);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 0.75rem;
  border-radius: 8px;
  white-space: normal;
  word-break: break-word;
}

.about-links-box {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
  border-radius: 1.25rem;
  padding: 2rem;
}

[data-theme="light"] .about-links-box {
  background: rgba(255, 255, 255, 0.6);
}

.about-links-box h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.about-links-box p {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.contact-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-link-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  text-decoration: none;
  color: var(--text-primary);
  padding: 0.75rem;
  border-radius: 0.75rem;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
}

.contact-link-item:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-color);
}

.contact-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(56, 189, 248, 0.12);
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.contact-value {
  font-size: 0.9rem;
  font-weight: 600;
  word-break: break-all;
}

/* ==========================================================================
   CTA SECTION
   ========================================================================== */
.cta-section {
  padding: clamp(2.5rem, 5vw, 4rem) 0 clamp(3.5rem, 6vw, 6rem);
}

.cta-container {
  text-align: center;
  max-width: 650px;
}

.cta-title {
  font-size: clamp(1.65rem, 4.5vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 1rem;
}

.cta-desc {
  font-size: clamp(0.925rem, 2.5vw, 1.1rem);
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.cta-buttons {
  display: flex;
  justify-content: center;
}

/* ==========================================================================
   SITE FOOTER
   ========================================================================== */
.site-footer {
  border-top: 1px solid var(--border-color);
  padding: 2.5rem 0;
  background-color: var(--bg-primary);
}

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

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.footer-copy {
  font-size: 0.825rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color var(--transition-fast);
}

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

/* ==========================================================================
   FULLSCREEN MODAL VIEWER
   ========================================================================== */
.fullscreen-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.fullscreen-modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(3, 7, 18, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.modal-dialog {
  position: relative;
  z-index: 2;
  width: 95vw;
  max-width: 1440px;
  height: 92vh;
  background: var(--browser-bg);
  border: 1px solid var(--browser-border);
  border-radius: 1.25rem;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.8);
  transform: scale(0.97);
  transition: transform var(--transition-smooth);
}

.fullscreen-modal.active .modal-dialog {
  transform: scale(1);
}

.modal-header {
  background-color: var(--browser-header-bg);
  border-bottom: 1px solid var(--browser-border);
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.modal-title-info {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-width: 0;
}

.modal-close-trigger {
  cursor: pointer;
}

.modal-title {
  font-weight: 700;
  font-size: 0.95rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.modal-address-bar {
  flex: 1;
  max-width: 500px;
  background-color: var(--browser-address-bg);
  border: 1px solid var(--browser-border);
  border-radius: 0.5rem;
  padding: 0.35rem 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.modal-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.modal-body {
  position: relative;
  flex: 1;
  width: 100%;
  background: #000000;
  overflow: hidden;
}

#modal-iframe {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}

/* ==========================================================================
   TOAST NOTIFICATION
   ========================================================================== */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: #1e293b;
  color: #f8fafc;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
  padding: 0.65rem 1.25rem;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 600;
  z-index: 2000;
  opacity: 0;
  transition: all var(--transition-normal);
  pointer-events: none;
  max-width: 90vw;
  text-align: center;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* ==========================================================================
   RESPONSIVE DESIGN (MEDIA QUERIES)
   ========================================================================== */
@media (max-width: 1080px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .hero-stats {
    grid-template-columns: repeat(3, 1fr);
  }

  .project-showcase,
  .project-showcase.reversed {
    grid-template-columns: 1fr;
    gap: 2rem;
    padding: 1.75rem;
  }

  .project-showcase.reversed .project-info {
    order: 1;
  }

  .project-showcase.reversed .browser-mockup-wrapper {
    order: 2;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 768px) {
  .site-header .nav-menu {
    display: none;
  }

  .browser-window[data-view="desktop"] .browser-viewport {
    height: 360px;
  }

  .browser-window[data-view="mobile"] .browser-viewport {
    height: 520px;
    padding: 0.5rem;
  }

  .browser-window[data-view="mobile"] .iframe-scaler {
    width: 100%;
    height: 100%;
    border-radius: 16px;
    border: 3px solid #1e293b;
  }

  .modal-dialog {
    width: 98vw;
    height: 96vh;
    border-radius: 0.75rem;
  }

  .modal-address-bar {
    display: none;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 0 1rem;
  }

  .site-header {
    height: 3.75rem;
  }

  .header-inner {
    height: 3.75rem;
  }

  .logo-avatar {
    width: 2.2rem;
    height: 2.2rem;
    font-size: 0.85rem;
    border-radius: 0.65rem;
  }

  .brand-name {
    font-size: 0.95rem;
  }

  .brand-domain {
    font-size: 0.68rem;
  }

  .status-badge {
    padding: 0.25rem 0.55rem;
    font-size: 0.7rem;
  }

  .btn-icon {
    width: 2.2rem;
    height: 2.2rem;
  }

  .hero-cta-group {
    flex-direction: column;
    width: 100%;
  }

  .hero-cta-group .btn {
    width: 100%;
  }

  .hero-stats {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .project-showcase,
  .project-showcase.reversed {
    padding: 1.15rem 1rem;
    border-radius: 1.25rem;
    gap: 1.5rem;
  }

  .project-links {
    flex-direction: column;
    width: 100%;
    gap: 0.5rem;
  }

  .project-links .btn {
    width: 100%;
    justify-content: center;
  }

  /* Browser Mockup 2-Row Header on Mobile */
  .browser-header {
    display: grid;
    grid-template-columns: auto auto;
    justify-content: space-between;
    align-items: center;
    row-gap: 0.5rem;
    padding: 0.6rem 0.75rem;
  }

  .window-dots {
    grid-column: 1;
  }

  .browser-controls {
    grid-column: 2;
    justify-self: end;
  }

  .browser-address-bar {
    grid-column: 1 / -1;
    width: 100%;
    margin: 0;
    padding: 0.35rem 0.6rem;
    font-size: 0.75rem;
  }

  .about-card {
    padding: 1.35rem 1.1rem;
    border-radius: 1.25rem;
  }

  .about-links-box {
    padding: 1.25rem 1rem;
  }

  .cta-buttons {
    width: 100%;
  }

  .cta-buttons .btn {
    width: 100%;
    justify-content: center;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
    gap: 1.25rem;
  }

  .footer-links {
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
  }

  .modal-dialog {
    width: 100vw;
    height: 100vh;
    border-radius: 0;
    border: none;
  }
}

@media (max-width: 420px) {
  .browser-window[data-view="desktop"] .browser-viewport {
    height: 290px;
  }

  .browser-window[data-view="mobile"] .browser-viewport {
    height: 480px;
    padding: 0.25rem;
  }

  .browser-window[data-view="mobile"] .iframe-scaler {
    border-radius: 12px;
    border: 1px solid var(--border-color);
  }

  .skills-chips .skill-chip {
    font-size: 0.72rem;
    padding: 0.25rem 0.55rem;
  }
}