/* ==========================================================================
   蔡杭涛 - 个人简历网站 CSS 样式系统 (Cyber-Modern Design System)
   ========================================================================== */

/* 1. 主题变量声明 (Dark Default & Light Mode) */
:root {
  /* Color Palette - Dark Theme */
  --bg-main: #0b0f19;
  --bg-surface: rgba(17, 24, 39, 0.75);
  --bg-card: rgba(24, 34, 53, 0.65);
  --bg-card-hover: rgba(30, 43, 67, 0.85);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(16, 185, 129, 0.4);
  
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;

  /* Accents */
  --accent-green: #10b981;
  --accent-green-glow: rgba(16, 185, 129, 0.25);
  --accent-cyan: #06b6d4;
  --accent-blue: #3b82f6;
  --accent-purple: #8b5cf6;
  --accent-amber: #f59e0b;
  
  /* Gradients */
  --gradient-text: linear-gradient(135deg, #10b981 0%, #06b6d4 50%, #6366f1 100%);
  --gradient-btn: linear-gradient(135deg, #10b981 0%, #059669 100%);
  --gradient-card-border: linear-gradient(135deg, rgba(16, 185, 129, 0.3), rgba(6, 182, 212, 0.1));

  /* Layout & Utility */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  --shadow-main: 0 20px 50px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 30px rgba(16, 185, 129, 0.18);

  --font-sans: 'Inter', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Plus Jakarta Sans', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', Consolas, monospace;
}

/* Light Theme Override */
html[data-theme="light"] {
  --bg-main: #f8fafc;
  --bg-surface: rgba(255, 255, 255, 0.85);
  --bg-card: #ffffff;
  --bg-card-hover: #ffffff;
  --border-color: #e2e8f0;
  --border-hover: #10b981;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;

  --accent-green: #059669;
  --accent-green-glow: rgba(5, 150, 105, 0.15);
  --accent-cyan: #0284c7;

  --shadow-main: 0 10px 30px rgba(15, 23, 42, 0.08);
  --shadow-glow: 0 0 20px rgba(5, 150, 105, 0.12);
}

/* 2. Global Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  padding: 0;
  background-color: var(--bg-main);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.2s ease;
}

/* 3. Ambient Background Floating Glow (背景炫光粒子) */
.ambient-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}

.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.28;
  animation: floatOrb 20s infinite ease-in-out alternate;
}

html[data-theme="light"] .glow-orb {
  opacity: 0.12;
}

.orb-1 {
  top: -10%;
  left: -10%;
  width: 50vw;
  height: 50vw;
  background: radial-gradient(circle, #10b981 0%, transparent 70%);
}

.orb-2 {
  bottom: -15%;
  right: -10%;
  width: 55vw;
  height: 55vw;
  background: radial-gradient(circle, #3b82f6 0%, transparent 70%);
  animation-delay: -7s;
}

.orb-3 {
  top: 40%;
  left: 30%;
  width: 35vw;
  height: 35vw;
  background: radial-gradient(circle, #8b5cf6 0%, transparent 70%);
  animation-delay: -14s;
}

.bg-grid {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(var(--border-color) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.4;
}

@keyframes floatOrb {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(40px, -60px) scale(1.1); }
  100% { transform: translate(-30px, 40px) scale(0.95); }
}

/* 4. Header & Navbar */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding: 0 5vw;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  backdrop-filter: blur(16px);
  transition: all 0.3s ease;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--gradient-btn);
  border-radius: var(--radius-sm);
  box-shadow: 0 0 14px var(--accent-green-glow);
}

.brand-py {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 15px;
  color: #ffffff;
}

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

.brand-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 16px;
  color: var(--text-primary);
  line-height: 1.2;
}

.brand-sub {
  font-size: 11px;
  color: var(--text-secondary);
  letter-spacing: 0.5px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav a {
  position: relative;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 6px 0;
}

.nav a:hover,
.nav a.active {
  color: var(--accent-green);
}

.nav a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent-green);
  border-radius: var(--radius-full);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s ease;
}

.icon-btn:hover {
  border-color: var(--accent-green);
  color: var(--accent-green);
  transform: translateY(-1px);
}

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

.header-contact-btn {
  padding: 8px 18px;
  font-size: 13px;
  font-weight: 600;
  color: #ffffff;
  background: var(--gradient-btn);
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 14px var(--accent-green-glow);
}

.header-contact-btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.mobile-only {
  display: none;
}

.mobile-drawer {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  width: 100vw;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  backdrop-filter: blur(20px);
  z-index: 99;
  padding: 20px 5vw;
}

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

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.mobile-nav a {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

/* 5. Common Section Layout & Typography */
.section-shell {
  width: min(1200px, 92vw);
  margin: 0 auto;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--accent-green);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  margin-top: 0;
}

h2 {
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
}

/* 6. HERO Section */
.hero {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 48px;
  align-items: center;
  min-height: calc(100vh - 72px);
  padding: 60px 0;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-green);
  margin-bottom: 20px;
}

.status-dot {
  width: 8px;
  height: 8px;
  background: var(--accent-green);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-green);
  animation: pulseDot 2s infinite;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(1.3); }
}

.hero-name {
  font-size: clamp(48px, 6vw, 68px);
  font-weight: 800;
  line-height: 1.05;
  margin-bottom: 12px;
  letter-spacing: -1px;
}

.text-gradient {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-role {
  font-size: 20px;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-bottom: 18px;
}

.hero-meta-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 13px;
  color: var(--text-secondary);
}

.hero-summary {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 30px;
  max-width: 580px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 36px;
}

.primary-btn, .ghost-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 46px;
  padding: 0 22px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25 ease;
  border: none;
}

.primary-btn {
  color: #ffffff;
  background: var(--gradient-btn);
  box-shadow: 0 4px 20px var(--accent-green-glow);
}

.primary-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--accent-green-glow);
}

.ghost-btn {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.ghost-btn:hover {
  border-color: var(--accent-green);
  color: var(--accent-green);
  transform: translateY(-2px);
}

/* Stats Row */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
}

.stat-card {
  padding: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  text-align: center;
  transition: all 0.2s ease;
}

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

.stat-value {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 800;
  color: var(--accent-green);
  margin-bottom: 2px;
}

.stat-label {
  font-size: 11px;
  color: var(--text-secondary);
}

/* 7. Terminal Simulator Card */
.hero-visual {
  position: relative;
}

.terminal-card {
  background: #080c14;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-main);
  transition: all 0.3s ease;
}

.terminal-card:hover {
  border-color: rgba(16, 185, 129, 0.4);
  box-shadow: var(--shadow-glow);
}

.terminal-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 42px;
  padding: 0 16px;
  background: #111827;
  border-bottom: 1px solid #1f2937;
}

.terminal-dots {
  display: flex;
  gap: 7px;
}

.terminal-dots span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #10b981; }

.terminal-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: #9ca3af;
}

.terminal-actions {
  display: flex;
  gap: 8px;
}

.term-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  background: #1f2937;
  border: 1px solid #374151;
  border-radius: 4px;
  color: #10b981;
  font-size: 11px;
  font-family: var(--font-mono);
  cursor: pointer;
  transition: all 0.2s ease;
}

.term-btn:hover {
  background: #374151;
  color: #ffffff;
}

/* 终端代码编辑器 - 固定深色背景与高对比度文字，无论页面是 Dark 还是 Light 主题 */
.terminal-screen {
  position: relative;
  min-height: 330px;
  padding: 22px;
  background: #030712 !important;
  color: #e2e8f0 !important; /* 固定亮浅灰色主文字 */
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.7;
  overflow-x: auto;
}

.code-editor pre {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-all;
  color: #e2e8f0 !important;
}

/* Syntax Highlighting for Terminal (固定极高对比度) */
.terminal-screen .py-kw { color: #f472b6 !important; font-weight: bold; }    /* 关键字 */
.terminal-screen .py-func { color: #60a5fa !important; font-weight: 500; }   /* 函数/类型名 */
.terminal-screen .py-str { color: #fbbf24 !important; }                      /* 字符串 */
.terminal-screen .py-cm { color: #94a3b8 !important; font-style: italic; }   /* 注释 */
.terminal-screen .py-num { color: #c084fc !important; }                      /* 数字 */
.terminal-screen .py-var { color: #34d399 !important; }                      /* 变量 */

.terminal-cursor {
  color: #10b981 !important;
  animation: blinkCursor 0.8s infinite;
}

@keyframes blinkCursor {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* Console Panel Inside Terminal */
.console-panel {
  margin-top: 16px;
  padding: 12px;
  background: #090e1a;
  border: 1px stroke #1e293b;
  border-radius: 6px;
  border-left: 3px solid #10b981;
  font-size: 12px;
  color: #34d399;
}

.console-header {
  color: #9ca3af;
  margin-bottom: 6px;
  font-weight: bold;
}

.console-logs div {
  margin-bottom: 3px;
}

.terminal-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 10px 16px;
  background: #0f172a;
  border-top: 1px solid #1e293b;
}

.tech-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 3px 8px;
  background: #1e293b;
  color: #94a3b8;
  border-radius: 4px;
}

/* 8. Split Section (About & AI Usage) */
.split-section {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 56px;
  padding: 90px 0;
  border-top: 1px solid var(--border-color);
}

.edu-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  padding: 8px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--text-secondary);
}

.about-lead {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.about-lead b {
  color: var(--accent-green);
}

.feature-cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.feat-card {
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all 0.25s ease;
}

.feat-card:hover {
  border-color: var(--accent-green);
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.feat-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  background: rgba(16, 185, 129, 0.1);
  color: var(--accent-green);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
}

.feat-card h4 {
  font-size: 16px;
  margin-bottom: 8px;
}

.feat-card p {
  font-size: 13px;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.6;
}

/* 9. Skills Matrix */
.section-heading {
  padding-top: 90px;
  border-top: 1px solid var(--border-color);
  margin-bottom: 32px;
}

.skill-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding-bottom: 90px;
}

.skill-card {
  padding: 26px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
}

.skill-card:hover {
  border-color: var(--accent-green);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.skill-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent-cyan);
  margin-bottom: 6px;
  text-transform: uppercase;
}

.skill-card h3 {
  font-size: 18px;
  margin-bottom: 16px;
}

.skill-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.skill-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
}

.check-icon {
  color: var(--accent-green);
  flex-shrink: 0;
  margin-top: 3px;
}

/* 10. Projects Portfolio */
.project-controls {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 32px;
}

.search-box {
  position: relative;
  max-width: 520px;
  display: flex;
  align-items: center;
}

.search-box svg {
  position: absolute;
  left: 16px;
  color: var(--text-muted);
  pointer-events: none;
}

.search-box input {
  width: 100%;
  height: 46px;
  padding: 0 16px 0 46px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 14px;
  outline: none;
  transition: all 0.2s ease;
}

.search-box input:focus {
  border-color: var(--accent-green);
  box-shadow: 0 0 12px var(--accent-green-glow);
}

.project-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.filter-btn {
  height: 38px;
  padding: 0 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.filter-btn:hover {
  border-color: var(--accent-green);
  color: var(--text-primary);
}

.filter-btn.active {
  background: var(--gradient-btn);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 4px 14px var(--accent-green-glow);
}

.project-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding-bottom: 90px;
}

.project-card {
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all 0.3s ease;
  position: relative;
}

.project-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.2);
}

.project-badges {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.role-badge {
  padding: 4px 10px;
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 700;
  color: var(--accent-blue);
}

.role-badge.indie {
  background: rgba(245, 158, 11, 0.12);
  border-color: rgba(245, 158, 11, 0.3);
  color: var(--accent-amber);
}

.period-badge {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}

.project-card h3 {
  font-size: 22px;
  margin-bottom: 12px;
}

.project-desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 18px;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.tech-chip {
  padding: 4px 12px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-green);
  font-weight: 500;
}

.highlights-box {
  padding: 18px 22px;
  background: var(--bg-surface);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--accent-green);
}

.highlights-title {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent-green);
  margin-bottom: 12px;

}

.highlight-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.highlight-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.bullet-arrow {
  color: var(--accent-green);
  font-weight: bold;
  font-size: 16px;
  line-height: 1.2;
}

/* 11. AI Usage Section */
.report-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.report-card {
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all 0.25s ease;
}

.report-card:hover {
  border-color: var(--accent-green);
}

.report-card-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.report-num {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 800;
  color: var(--accent-green);
}

.report-card h3 {
  font-size: 17px;
  margin: 0;
}

.report-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}

/* 12. Contact Section & Footer (双主题响应设计) */
.contact-section {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  margin-top: 60px;
  transition: all 0.3s ease;
}

html[data-theme="light"] .contact-section {
  background: #f1f5f9;
}

.contact-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  padding: 80px 0 60px;
}

.contact-info h2 {
  font-size: 32px;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.contact-desc {
  font-size: 15px;
  color: var(--text-secondary);
}

.contact-desc b {
  color: var(--accent-green);
}

.contact-cards {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 320px;
}

.contact-method-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all 0.25s ease;
}

.contact-method-card:hover {
  border-color: var(--accent-green);
  transform: translateX(4px);
  box-shadow: var(--shadow-glow);
}

html[data-theme="light"] .contact-method-card {
  background: #ffffff;
  border-color: #cbd5e1;
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.05);
}

html[data-theme="light"] .contact-method-card:hover {
  border-color: var(--accent-green);
  box-shadow: 0 8px 20px rgba(16, 185, 129, 0.15);
}

.cm-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: rgba(16, 185, 129, 0.1);
  color: var(--accent-green);
  border-radius: var(--radius-sm);
}

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

.cm-label {
  font-size: 12px;
  color: var(--text-muted);
}

.cm-val {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
}

.site-footer {
  border-top: 1px solid var(--border-color);
  padding: 24px 0;
  font-size: 13px;
  color: var(--text-muted);
}

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

.back-to-top {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
}

.back-to-top:hover {
  color: var(--accent-green);
}

/* 13. Toast Component */
.toast {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  background: #064e3b;
  border: 1px solid #10b981;
  border-radius: var(--radius-sm);
  color: #ffffff;
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

/* 14. Scroll Reveal Animation Classes */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.hidden {
  display: none !important;
}

/* 15. Responsive Styles */
@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 40px 0;
  }

  .split-section {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .skill-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .report-grid {
    grid-template-columns: 1fr;
  }
}

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

  .mobile-only {
    display: flex;
  }

  .stats-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .feature-cards-grid {
    grid-template-columns: 1fr;
  }

  .skill-grid {
    grid-template-columns: 1fr;
  }

  .contact-shell {
    flex-direction: column;
    align-items: flex-start;
  }

  .contact-cards {
    width: 100%;
    min-width: unset;
  }
}