/* ==========================================================================
   smri.best - Core Design System & CSS Variables (Dark / Light Theme)
   ========================================================================== */

:root[data-theme="dark"] {
  --bg-primary: #090d16;
  --bg-secondary: #111827;
  --bg-tertiary: #1f293d;
  
  --card-bg: rgba(17, 24, 39, 0.65);
  --card-border: rgba(255, 255, 255, 0.08);
  --card-hover-border: rgba(56, 189, 248, 0.4);
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --accent-cyan: #38bdf8;
  --accent-purple: #c084fc;
  --accent-emerald: #34d399;
  --accent-amber: #fbbf24;
  --accent-rose: #f43f5e;

  --gradient-brand: linear-gradient(135deg, #38bdf8 0%, #818cf8 50%, #c084fc 100%);
  --gradient-glow: radial-gradient(circle at 50% 0%, rgba(56, 189, 248, 0.15), transparent 70%);

  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.4);
  --glass-blur: blur(16px);
}

:root[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  
  --card-bg: rgba(255, 255, 255, 0.85);
  --card-border: rgba(226, 232, 240, 0.8);
  --card-hover-border: rgba(14, 165, 233, 0.5);
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  
  --accent-cyan: #0284c7;
  --accent-purple: #9333ea;
  --accent-emerald: #059669;
  --accent-amber: #d97706;
  --accent-rose: #e11d48;

  --gradient-brand: linear-gradient(135deg, #0284c7 0%, #4f46e5 50%, #9333ea 100%);
  --gradient-glow: radial-gradient(circle at 50% 0%, rgba(2, 132, 199, 0.08), transparent 70%);

  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 15px 25px -5px rgba(15, 23, 42, 0.08);
  --glass-blur: blur(16px);
}

/* ==========================================================================
   Global Reset & Base Typography
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  transition: background-color 0.4s ease, color 0.4s ease;
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.font-mono {
  font-family: 'JetBrains Mono', monospace;
}

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Glassmorphism Panel Utility */
.glass-panel {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-radius: 1.25rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.glass-panel:hover {
  border-color: var(--card-hover-border);
  box-shadow: var(--shadow-lg);
}

/* ==========================================================================
   Hero Canvas Background
   ========================================================================== */

.hero-canvas-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  min-height: 700px;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

#hero-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* ==========================================================================
   Header Navigation
   ========================================================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  padding: 1rem 0;
  backdrop-filter: blur(12px);
  background: rgba(9, 13, 22, 0.4);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: all 0.3s ease;
}

[data-theme="light"] .site-header {
  background: rgba(248, 250, 252, 0.7);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--text-primary);
}

.logo-icon-box {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--gradient-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 0 15px rgba(56, 189, 248, 0.4);
}

.logo-text .highlight {
  color: var(--accent-cyan);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.5rem 0.8rem;
  border-radius: 0.5rem;
  transition: all 0.2s ease;
}

.nav-link:hover, .nav-link.active {
  color: var(--accent-cyan);
  background: rgba(56, 189, 248, 0.08);
}

.nav-link i {
  width: 18px;
  height: 18px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

/* ==========================================================================
   Buttons & Micro-interactions
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.75rem 1.4rem;
  border-radius: 0.75rem;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn i {
  width: 20px;
  height: 20px;
}

.btn-primary {
  background: var(--gradient-brand);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(56, 189, 248, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(56, 189, 248, 0.5);
}

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

.btn-secondary:hover {
  background: var(--bg-secondary);
  border-color: var(--accent-purple);
  transform: translateY(-2px);
}

.btn-accent {
  background: linear-gradient(135deg, #f43f5e 0%, #fbbf24 100%);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(244, 63, 94, 0.3);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(244, 63, 94, 0.45);
}

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

.btn-outline:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  background: rgba(56, 189, 248, 0.08);
}

.btn-sm {
  padding: 0.45rem 0.9rem;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 0.9rem 1.8rem;
  font-size: 1.05rem;
}

.btn-block {
  width: 100%;
}

.btn-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.25s ease;
}

.btn-icon:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  transform: rotate(15deg);
}

/* Theme Icons Switch */
[data-theme="dark"] .icon-light { display: none; }
[data-theme="dark"] .icon-dark { display: block; }
[data-theme="light"] .icon-dark { display: none; }
[data-theme="light"] .icon-light { display: block; }

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero-section {
  position: relative;
  z-index: 1;
  padding: 10rem 0 5rem;
  min-height: 90vh;
  display: flex;
  align-items: center;
}

.hero-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-center: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 1rem;
  border-radius: 2rem;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  color: var(--accent-cyan);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 2rem;
  animation: floatBadge 3s ease-in-out infinite;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 10px var(--accent-emerald);
  animation: pulseGlow 1.8s infinite;
}

.hero-title {
  font-size: 3.8rem;
  line-height: 1.15;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
  text-align: center;
}

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

.hero-subtitle {
  font-size: 1.2rem;
  line-height: 1.6;
  color: var(--text-secondary);
  max-width: 680px;
  margin-bottom: 2.5rem;
  text-align: center;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  margin-bottom: 3.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.quick-stats-bar {
  display: flex;
  align-items: center;
  justify-content: space-around;
  width: 100%;
  padding: 1.25rem 2rem;
  margin-top: 1rem;
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  text-align: left;
}

.stat-item i {
  width: 24px;
  height: 24px;
  color: var(--accent-cyan);
}

.stat-label {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  font-weight: 600;
}

.stat-val {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

.stat-divider {
  width: 1px;
  height: 35px;
  background: var(--card-border);
}

/* ==========================================================================
   Server Dashboard Section (4 Cards Grid)
   ========================================================================== */

.dashboard-section {
  position: relative;
  z-index: 1;
  padding: 6rem 0;
  background: radial-gradient(ellipse at bottom, rgba(56, 189, 248, 0.05), transparent 70%);
}

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

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.8rem;
}

.section-title {
  font-size: 2.4rem;
  color: var(--text-primary);
  margin-bottom: 0.8rem;
}

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

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 1.8rem;
}

.dash-card {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 340px;
}

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

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.icon-cyan { background: rgba(56, 189, 248, 0.12); color: var(--accent-cyan); }
.icon-purple { background: rgba(192, 132, 252, 0.12); color: var(--accent-purple); }
.icon-amber { background: rgba(251, 191, 36, 0.12); color: var(--accent-amber); }
.icon-emerald { background: rgba(52, 211, 153, 0.12); color: var(--accent-emerald); }

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.75rem;
  border-radius: 1rem;
  font-size: 0.75rem;
  font-weight: 700;
}

.status-online { background: rgba(52, 211, 153, 0.15); color: var(--accent-emerald); }
.status-online .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent-emerald); }

.status-active { background: rgba(192, 132, 252, 0.15); color: var(--accent-purple); }
.status-secure { background: rgba(251, 191, 36, 0.15); color: var(--accent-amber); }
.status-deploy { background: rgba(56, 189, 248, 0.15); color: var(--accent-cyan); }

.card-title {
  font-size: 1.3rem;
  margin-bottom: 0.25rem;
}

.card-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.info-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.info-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.88rem;
}

.info-row .label {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-secondary);
}

.info-row .label i {
  width: 15px;
  height: 15px;
  color: var(--text-muted);
}

.info-row .val {
  font-weight: 600;
  color: var(--text-primary);
}

.highlight-val {
  color: var(--accent-cyan) !important;
}

.text-success {
  color: var(--accent-emerald) !important;
}

/* Meter Bars */
.meter-box {
  margin-top: 0.8rem;
}

.meter-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 0.35rem;
  font-weight: 600;
}

.meter-bar {
  width: 100%;
  height: 8px;
  background: var(--bg-tertiary);
  border-radius: 4px;
  overflow: hidden;
}

.meter-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.8s ease;
}

.fill-cpu { background: linear-gradient(90deg, #38bdf8, #818cf8); }
.fill-ram { background: linear-gradient(90deg, #c084fc, #f43f5e); }
.fill-disk { background: linear-gradient(90deg, #34d399, #fbbf24); }

.card-footer {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--card-border);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-note {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

/* ==========================================================================
   Vibe Coding Features Section
   ========================================================================== */

.projects-section {
  position: relative;
  z-index: 1;
  padding: 6rem 0;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 1.8rem;
}

.project-card {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.project-icon-wrapper {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.project-title {
  font-size: 1.3rem;
  margin-bottom: 0.6rem;
}

.project-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.project-tags {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.tag {
  font-size: 0.75rem;
  padding: 0.25rem 0.6rem;
  border-radius: 0.4rem;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  font-weight: 600;
}

/* ==========================================================================
   Modal Component
   ========================================================================== */

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 1;
  transition: opacity 0.3s ease;
}

.modal-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.modal-content {
  max-width: 600px;
  width: 100%;
  padding: 2rem;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.2rem;
}

.modal-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.code-block {
  background: var(--bg-primary);
  border: 1px solid var(--card-border);
  border-radius: 0.75rem;
  padding: 1rem;
  margin-bottom: 1rem;
}

.code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.copy-btn {
  background: transparent;
  border: none;
  color: var(--accent-cyan);
  cursor: pointer;
  font-size: 0.8rem;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

pre {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  color: var(--accent-cyan);
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-all;
}

.modal-footer {
  margin-top: 1.5rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  border-top: 1px solid var(--card-border);
  background: var(--bg-secondary);
  padding: 4rem 0 2rem;
  position: relative;
  z-index: 1;
}

.footer-wrapper {
  display: flex;
  justify-content: space-between;
  gap: 3rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.footer-info {
  max-width: 400px;
}

.footer-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: 1rem;
  line-height: 1.6;
}

.footer-links {
  display: flex;
  gap: 4rem;
}

.link-group {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.link-group h4 {
  font-size: 0.95rem;
  color: var(--text-primary);
}

.link-group a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.88rem;
  transition: color 0.2s ease;
}

.link-group a:hover {
  color: var(--accent-cyan);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--card-border);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.bottom-flex {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.tech-badge {
  display: flex;
  gap: 1rem;
}

.tech-badge span {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

/* Keyframes */
@keyframes floatBadge {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

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

/* Mobile Responsiveness */
@media (max-width: 768px) {
  .hero-title { font-size: 2.5rem; }
  .nav-menu { display: none; }
  .quick-stats-bar { flex-direction: column; gap: 1rem; }
  .stat-divider { display: none; }
}