/* ==========================================================================
   IIDC Vibe Coding Portfolio - Style System (Dark & Light Theme)
   ========================================================================== */

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

:root {
  /* Dark Theme (Default) */
  --bg-body: #090d16;
  --bg-header: rgba(9, 13, 22, 0.75);
  --bg-card: rgba(17, 24, 39, 0.7);
  --bg-card-hover: rgba(30, 41, 59, 0.8);
  --bg-pill: rgba(255, 255, 255, 0.06);
  --bg-input: rgba(15, 23, 42, 0.8);

  --border-color: rgba(255, 255, 255, 0.1);
  --border-glow: rgba(0, 242, 254, 0.3);

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --accent-cyan: #00f2fe;
  --accent-blue: #4facfe;
  --accent-purple: #8b5cf6;
  --accent-green: #10b981;
  --accent-orange: #f59e0b;

  --gradient-brand: linear-gradient(135deg, #00f2fe 0%, #4facfe 50%, #8b5cf6 100%);
  --gradient-card: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.01) 100%);
  
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 25px rgba(0, 242, 254, 0.15);

  --particle-color: rgba(0, 242, 254, 0.7);
  --particle-line: rgba(79, 172, 254, 0.15);
}

[data-theme="light"] {
  /* Light Theme */
  --bg-body: #f8fafc;
  --bg-header: rgba(255, 255, 255, 0.85);
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-hover: rgba(241, 245, 249, 0.95);
  --bg-pill: rgba(15, 23, 42, 0.05);
  --bg-input: rgba(241, 245, 249, 0.9);

  --border-color: rgba(226, 232, 240, 0.9);
  --border-glow: rgba(37, 99, 235, 0.3);

  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #94a3b8;

  --accent-cyan: #0284c7;
  --accent-blue: #2563eb;
  --accent-purple: #7c3aed;
  --accent-green: #059669;
  --accent-orange: #d97706;

  --gradient-brand: linear-gradient(135deg, #2563eb 0%, #0284c7 50%, #7c3aed 100%);
  --gradient-card: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(241, 245, 249, 0.6) 100%);

  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 10px 25px -5px rgba(15, 23, 42, 0.08);
  --shadow-glow: 0 0 25px rgba(37, 99, 235, 0.12);

  --particle-color: rgba(37, 99, 235, 0.6);
  --particle-line: rgba(2, 132, 199, 0.18);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-body);
  color: var(--text-main);
  transition: background-color 0.3s ease, color 0.3s ease;
  line-height: 1.6;
  overflow-x: hidden;
}

/* Glassmorphism utility */
.glass {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
}

/* Container */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Lucide Icon Vertical Align Fix */
.lucide {
  vertical-align: middle;
  display: inline-block;
  stroke-width: 2;
}

/* Header & Nav */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--bg-header);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  font-family: 'Outfit', sans-serif;
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--text-main);
  letter-spacing: -0.5px;
}

.logo-badge {
  background: var(--gradient-brand);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

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

nav.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

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

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

.theme-toggle-btn {
  background: var(--bg-pill);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.theme-toggle-btn:hover {
  border-color: var(--accent-cyan);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.deploy-btn-nav {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--gradient-brand);
  color: #ffffff;
  border: none;
  padding: 0.6rem 1.2rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-sm);
}

.deploy-btn-nav:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
  opacity: 0.95;
}

/* Hero Section */
.hero-section {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 100px;
  padding-bottom: 60px;
  overflow: hidden;
}

#particle-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: auto;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 860px;
  margin: 0 auto;
  pointer-events: none;
}

.hero-content * {
  pointer-events: auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-pill);
  border: 1px solid var(--border-glow);
  padding: 0.4rem 1rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-bottom: 1.5rem;
  animation: pulse-border 2.5s infinite;
}

@keyframes pulse-border {
  0%, 100% { border-color: rgba(0, 242, 254, 0.3); }
  50% { border-color: rgba(0, 242, 254, 0.8); }
}

.hero-title {
  font-family: 'Outfit', sans-serif;
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1.5px;
  margin-bottom: 1.25rem;
}

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

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 2.5rem auto;
  font-weight: 400;
}

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

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--gradient-brand);
  color: #fff;
  padding: 0.85rem 1.8rem;
  border-radius: 12px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.25 ease;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(0, 242, 254, 0.3);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--bg-pill);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 0.85rem 1.8rem;
  border-radius: 12px;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.25s ease;
}

.btn-secondary:hover {
  border-color: var(--accent-cyan);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
}

/* Section Common */
.section {
  padding: 5rem 0;
  position: relative;
  z-index: 5;
}

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--accent-cyan);
  margin-bottom: 0.5rem;
}

.section-title {
  font-family: 'Outfit', sans-serif;
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.5px;
}

.section-description {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0.5rem auto 0 auto;
}

/* Server Dashboard Cards (4 Cards Grid) */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.dash-card {
  border-radius: 18px;
  padding: 1.6rem;
  position: relative;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
}

.dash-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-brand);
  opacity: 0.7;
  transition: opacity 0.3s ease;
}

.dash-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}

.dash-card:hover::before {
  opacity: 1;
}

.dash-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.dash-icon-box {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--bg-pill);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  background: rgba(16, 185, 129, 0.12);
  color: var(--accent-green);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-green);
  animation: pulse-dot 1.5s infinite;
}

@keyframes pulse-dot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.5; }
}

.dash-card-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.3rem;
}

.dash-card-value {
  font-family: 'Outfit', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-main);
  word-break: break-all;
  margin-bottom: 0.8rem;
}

.dash-card-details {
  list-style: none;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.2rem;
}

.dash-card-details li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.35rem 0;
  border-bottom: 1px dashed var(--border-color);
}

.dash-card-details li:last-child {
  border-bottom: none;
}

.dash-card-action {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: var(--bg-pill);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 0.6rem;
  border-radius: 10px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.dash-card-action:hover {
  background: var(--accent-cyan);
  color: #ffffff;
  border-color: var(--accent-cyan);
}

/* Metric Progress Bar */
.progress-bar-bg {
  width: 100%;
  height: 6px;
  background: var(--bg-pill);
  border-radius: 999px;
  overflow: hidden;
  margin-top: 0.3rem;
}

.progress-bar-fill {
  height: 100%;
  background: var(--gradient-brand);
  border-radius: 999px;
  transition: width 1s ease-in-out;
}

/* Portfolio Section */
.portfolio-filter {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.filter-btn {
  background: var(--bg-pill);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 0.5rem 1.2rem;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.filter-btn.active, .filter-btn:hover {
  background: var(--gradient-brand);
  color: #fff;
  border-color: transparent;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.portfolio-card {
  border-radius: 20px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.portfolio-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-glow);
  border-color: var(--border-glow);
}

.portfolio-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-cyan);
  background: var(--bg-pill);
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--border-color);
  margin-bottom: 1rem;
  width: fit-content;
}

.portfolio-title {
  font-family: 'Outfit', sans-serif;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.portfolio-desc {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.portfolio-card-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1rem;
}

.btn-card-primary {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  background: var(--gradient-brand);
  color: #ffffff;
  padding: 0.65rem;
  border-radius: 10px;
  font-size: 0.85rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s ease;
}

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

.btn-card-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--bg-pill);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-card-secondary:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

/* AWS Deployment Hub / Terminal Card */
.terminal-card {
  border-radius: 20px;
  background: #0d1117;
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #c9d1d9;
  overflow: hidden;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
  font-family: 'Consolas', 'Courier New', monospace;
}

.terminal-header {
  background: #161b22;
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #21262d;
}

.terminal-dots {
  display: flex;
  gap: 0.4rem;
}

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

.terminal-title {
  font-size: 0.85rem;
  color: #8b949e;
}

.terminal-body {
  padding: 1.5rem;
  font-size: 0.9rem;
  line-height: 1.7;
}

.command-line {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 0.8rem;
  word-break: break-all;
}

.prompt {
  color: #58a6ff;
  font-weight: bold;
}

.cmd-text {
  color: #79c0ff;
}

.output-text {
  color: #8b949e;
  padding-left: 1.5rem;
  margin-bottom: 0.8rem;
}

.highlight-green {
  color: #7ee787;
  font-weight: bold;
}

/* Modal Window */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

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

.modal-container {
  width: 100%;
  max-width: 640px;
  border-radius: 20px;
  padding: 2rem;
  position: relative;
  transform: translateY(20px);
  transition: transform 0.3s ease;
}

.modal-overlay.active .modal-container {
  transform: translateY(0);
}

.modal-close-btn {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: var(--bg-pill);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.modal-close-btn:hover {
  background: var(--accent-cyan);
  color: #ffffff;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.toast {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--bg-card);
  border: 1px solid var(--accent-cyan);
  color: var(--text-main);
  padding: 0.85rem 1.25rem;
  border-radius: 12px;
  box-shadow: var(--shadow-glow);
  animation: slide-in 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slide-in {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Footer */
footer {
  background: var(--bg-header);
  border-top: 1px solid var(--border-color);
  padding: 3rem 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  text-align: center;
  position: relative;
  z-index: 10;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

/* Responsive */
@media (max-width: 1024px) {
  .dashboard-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .hero-title {
    font-size: 2.3rem;
  }
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
  nav.nav-links {
    display: none;
  }
}