/**
 * DrYouu Professional Website - Main Stylesheet
 * 
 * This file contains all styles for the website including:
 * - CSS Variables for theming
 * - Base styles
 * - Component styles
 * - Responsive design
 * - Theme variations
 * 
 * To customize colors, modify the CSS variables in :root
 */

/* ===========================
   CSS VARIABLES & THEMING
   =========================== */

:root {
  /* Primary Colors - Landing Page Theme */
  --primary-bg: #050816;
  --primary-bg-gradient-start: #1f2933;
  --primary-bg-gradient-end: #000;
  --primary-text: #e5e7eb;
  --primary-accent: #3b82f6;
  --primary-accent-hover: #2563eb;
  
  /* Secondary Colors - Personal Section Theme */
  --secondary-bg: #0f172a;
  --secondary-bg-light: #1e293b;
  --secondary-text: #e2e8f0;
  --secondary-accent: #8b5cf6;
  --secondary-accent-hover: #7c3aed;
  
  /* Private Area Theme */
  --private-bg: #111827;
  --private-bg-light: #1f2937;
  --private-text: #f9fafb;
  --private-accent: #10b981;
  --private-accent-hover: #059669;
  --private-danger: #ef4444;
  
  /* Wiki Theme */
  --wiki-bg: #f8fafc;
  --wiki-bg-light: #ffffff;
  --wiki-text: #1e293b;
  --wiki-text-light: #64748b;
  --wiki-accent: #0ea5e9;
  --wiki-border: #e2e8f0;
  
  /* Neutral Colors */
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  
  /* Status Colors */
  --success: #22c55e;
  --warning: #f59e0b;
  --error: #ef4444;
  --info: #3b82f6;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
  
  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Monaco, Consolas, monospace;
}

/* ===========================
   BASE STYLES
   =========================== */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  line-height: 1.6;
  color: var(--primary-text);
  background: var(--primary-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===========================
   UTILITY CLASSES
   =========================== */

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.section {
  padding: var(--spacing-3xl) 0;
  min-height: 100vh;
}

.hidden {
  display: none !important;
}

.text-center {
  text-align: center;
}

.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

/* ===========================
   NAVIGATION
   =========================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(5, 8, 22, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.2);
  padding: var(--spacing-md) 0;
  transition: all var(--transition-base);
}

.navbar.scrolled {
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-sm) 0;
}

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

.nav-brand {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-text);
  text-decoration: none;
  letter-spacing: 0.05em;
  transition: color var(--transition-fast);
}

.nav-brand:hover {
  color: var(--primary-accent);
}

.nav-menu {
  display: flex;
  gap: var(--spacing-lg);
  list-style: none;
  align-items: center;
}

.nav-link {
  color: var(--gray-300);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  transition: color, background-color, transform var(--transition-base);
  position: relative;
  display: inline-block;
}

.nav-link:hover {
  color: var(--primary-text);
  background: rgba(148, 163, 184, 0.1);
  transform: translateY(-1px);
}

.nav-link.active {
  color: var(--primary-accent);
  background: rgba(59, 130, 246, 0.1);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 2px;
  background: var(--primary-accent);
  border-radius: 2px;
}

/* Special styling for button-style nav links */
.nav-link.btn-primary {
  background: var(--primary-accent);
  color: white;
  border: 1px solid var(--primary-accent);
  font-weight: 600;
  padding: var(--spacing-sm) var(--spacing-lg);
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

.nav-link.btn-primary:hover {
  background: var(--primary-accent-hover);
  border-color: var(--primary-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.nav-link.btn-primary.active::after {
  display: none;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.nav-toggle span {
  display: block;
  width: 25px;
  height: 2px;
  background: var(--primary-text);
  margin: 5px 0;
  transition: all var(--transition-fast);
}

/* ===========================
   BUTTONS
   =========================== */

.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  border: none;
  transition: background-color, transform, box-shadow var(--transition-base);
  outline: none;
  font-family: var(--font-sans);
  line-height: 1.5;
}

.btn-primary {
  background: var(--primary-accent);
  color: white;
  border: 1px solid var(--primary-accent);
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.2);
}

.btn-primary:hover {
  background: var(--primary-accent-hover);
  border-color: var(--primary-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 1px 4px rgba(59, 130, 246, 0.2);
}

.btn-secondary {
  background: transparent;
  color: var(--primary-text);
  border: 1px solid rgba(148, 163, 184, 0.5);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.btn-secondary:hover {
  background: rgba(148, 163, 184, 0.15);
  border-color: var(--primary-text);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(148, 163, 184, 0.2);
}

.btn-secondary:active {
  transform: translateY(0);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
}

.btn-success {
  background: var(--success);
  color: white;
  border: 1px solid var(--success);
}

.btn-success:hover {
  background: #16a34a;
  transform: translateY(-2px);
}

.btn-danger {
  background: var(--error);
  color: white;
  border: 1px solid var(--error);
}

.btn-danger:hover {
  background: #dc2626;
  transform: translateY(-2px);
}

/* ===========================
   CARDS
   =========================== */

.card {
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-xl);
  backdrop-filter: blur(10px);
  transition: all var(--transition-base);
}

.card:hover {
  border-color: rgba(148, 163, 184, 0.4);
  transform: translateY(-4px);
  box-shadow: var(--shadow-2xl);
}

.card-header {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  color: var(--primary-text);
}

.card-body {
  color: var(--gray-300);
  line-height: 1.8;
}

/* ===========================
   FORMS
   =========================== */

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
  color: var(--primary-text);
  font-size: 0.95rem;
}

.form-input {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid rgba(148, 163, 184, 0.3);
  border-radius: var(--radius-md);
  background: rgba(15, 23, 42, 0.5);
  color: var(--primary-text);
  font-size: 1rem;
  font-family: var(--font-sans);
  transition: all var(--transition-base);
  outline: none;
}

.form-input:focus {
  border-color: var(--primary-accent);
  background: rgba(15, 23, 42, 0.7);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-input::placeholder {
  color: var(--gray-500);
}

/* ===========================
   LANDING PAGE
   =========================== */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at top, var(--primary-bg-gradient-start) 0%, var(--primary-bg-gradient-end) 100%);
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  text-align: center;
  max-width: 800px;
  padding: var(--spacing-xl);
  position: relative;
  z-index: 1;
}

.hero-subtitle {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--primary-accent);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--spacing-md);
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: var(--spacing-lg);
  background: linear-gradient(to right, var(--primary-text), var(--gray-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.hero-description {
  font-size: 1.25rem;
  color: var(--gray-300);
  margin-bottom: var(--spacing-2xl);
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-full);
  border: 1px solid rgba(148, 163, 184, 0.3);
  font-size: 0.85rem;
  color: var(--gray-300);
  margin-top: var(--spacing-xl);
  background: rgba(15, 23, 42, 0.5);
}

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

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* ===========================
   ABOUT / PERSONAL SECTION
   =========================== */

.about-section {
  background: linear-gradient(to bottom, var(--primary-bg) 0%, var(--secondary-bg) 100%);
  padding: var(--spacing-3xl) 0;
}

.section-areas {
  background: linear-gradient(to bottom, var(--primary-bg) 0%, var(--secondary-bg) 100%);
  padding: var(--spacing-3xl) 0;
}

.section-intro {
  text-align: center;
  color: var(--gray-300);
  font-size: 1.1rem;
  max-width: 700px;
  margin: 0 auto var(--spacing-2xl);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

.section-cta {
  background: linear-gradient(to bottom, var(--secondary-bg) 0%, var(--primary-bg) 100%);
  padding: var(--spacing-3xl) 0;
  text-align: center;
}

.cta-actions {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--spacing-xl);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
}

.about-text h2 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-lg);
  color: var(--primary-text);
}

.about-text p {
  color: var(--gray-300);
  margin-bottom: var(--spacing-md);
  font-size: 1.1rem;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

.skill-item {
  background: rgba(15, 23, 42, 0.6);
  padding: var(--spacing-md);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(148, 163, 184, 0.2);
  text-align: center;
  transition: all var(--transition-base);
}

.skill-item:hover {
  border-color: var(--secondary-accent);
  transform: translateY(-2px);
}

/* ===========================
   PROJECTS SECTION
   =========================== */

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

.project-card {
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  transition: all var(--transition-base);
}

.project-card:hover {
  border-color: var(--primary-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-2xl);
}

.project-title {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--primary-text);
}

.project-description {
  color: var(--gray-300);
  margin-bottom: var(--spacing-lg);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.tag {
  padding: var(--spacing-xs) var(--spacing-md);
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  color: var(--primary-accent);
}

.project-links {
  display: flex;
  gap: var(--spacing-md);
}

/* ===========================
   LOGIN / PRIVATE AREA
   =========================== */

.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--private-bg) 0%, var(--private-bg-light) 100%);
  padding: var(--spacing-xl);
}

.login-card {
  width: 100%;
  max-width: 450px;
  background: rgba(31, 41, 55, 0.95);
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-2xl);
  box-shadow: var(--shadow-2xl);
}

.login-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.login-title {
  font-size: 2rem;
  margin-bottom: var(--spacing-sm);
  color: var(--private-text);
}

.login-subtitle {
  color: var(--gray-400);
  font-size: 0.95rem;
}

.error-message {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: var(--error);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
  font-size: 0.9rem;
}

.success-message {
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: var(--success);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
  font-size: 0.9rem;
}

/* OAuth2 Authentication Buttons */
.auth-divider {
  display: flex;
  align-items: center;
  text-align: center;
  margin: var(--spacing-xl) 0;
  color: var(--gray-400);
  font-size: 0.875rem;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  border-bottom: 1px solid rgba(148, 163, 184, 0.2);
}

.auth-divider span {
  padding: 0 var(--spacing-md);
}

.oauth-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.btn-oauth {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  width: 100%;
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background-color, border-color, transform, box-shadow var(--transition-base);
  border: 1px solid rgba(148, 163, 184, 0.3);
  background: rgba(255, 255, 255, 0.05);
  color: var(--primary-text);
}

.btn-oauth:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(148, 163, 184, 0.5);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.btn-oauth:active {
  transform: translateY(0);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.btn-oauth .oauth-icon {
  font-size: 1.25rem;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-oauth-google {
  background: rgba(66, 133, 244, 0.1);
  border-color: rgba(66, 133, 244, 0.3);
}

.btn-oauth-google:hover {
  background: rgba(66, 133, 244, 0.2);
  border-color: rgba(66, 133, 244, 0.5);
  box-shadow: 0 4px 12px rgba(66, 133, 244, 0.3);
}

.btn-oauth-apple {
  background: rgba(0, 0, 0, 0.2);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn-oauth-apple:hover {
  background: rgba(0, 0, 0, 0.3);
  border-color: rgba(255, 255, 255, 0.5);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.btn-oauth-github {
  background: rgba(51, 51, 51, 0.2);
  border-color: rgba(148, 163, 184, 0.3);
}

.btn-oauth-github:hover {
  background: rgba(51, 51, 51, 0.3);
  border-color: rgba(148, 163, 184, 0.5);
  box-shadow: 0 4px 12px rgba(51, 51, 51, 0.4);
}

/* ===========================
   PRIVATE DASHBOARD
   =========================== */

.dashboard {
  padding-top: 80px;
  min-height: 100vh;
  background: var(--private-bg);
}

.dashboard-header {
  background: var(--private-bg-light);
  padding: var(--spacing-2xl) 0;
  border-bottom: 1px solid rgba(148, 163, 184, 0.1);
}

.dashboard-title {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--private-text);
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

.dashboard-card {
  background: var(--private-bg-light);
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  transition: all var(--transition-base);
}

.dashboard-card:hover {
  border-color: var(--private-accent);
  transform: translateY(-4px);
}

.dashboard-card-icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
}

.dashboard-card-title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
  color: var(--private-text);
}

.dashboard-card-description {
  color: var(--gray-400);
  font-size: 0.95rem;
}

/* ===========================
   WIKI SECTION
   =========================== */

.wiki-container {
  background: var(--wiki-bg);
  color: var(--wiki-text);
  min-height: 100vh;
  padding-top: 80px;
}

.wiki-layout {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: var(--spacing-2xl);
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-2xl);
}

.wiki-sidebar {
  background: var(--wiki-bg-light);
  border: 1px solid var(--wiki-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  height: fit-content;
  position: sticky;
  top: 100px;
}

.wiki-nav-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--wiki-text-light);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-md);
}

.wiki-nav-list {
  list-style: none;
}

.wiki-nav-item {
  margin-bottom: var(--spacing-sm);
}

.wiki-nav-link {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--wiki-text);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  font-size: 0.95rem;
}

.wiki-nav-link:hover {
  background: rgba(14, 165, 233, 0.1);
  color: var(--wiki-accent);
}

.wiki-nav-link.active {
  background: rgba(14, 165, 233, 0.15);
  color: var(--wiki-accent);
  font-weight: 600;
}

.wiki-content {
  background: var(--wiki-bg-light);
  border: 1px solid var(--wiki-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl);
}

.wiki-article-title {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-lg);
  color: var(--wiki-text);
}

.wiki-article-content {
  line-height: 1.8;
  color: var(--wiki-text);
}

.wiki-article-content h2 {
  font-size: 1.75rem;
  margin-top: var(--spacing-2xl);
  margin-bottom: var(--spacing-lg);
  color: var(--wiki-text);
}

.wiki-article-content h3 {
  font-size: 1.35rem;
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
  color: var(--wiki-text);
}

.wiki-article-content p {
  margin-bottom: var(--spacing-lg);
  color: var(--wiki-text);
}

.wiki-article-content code {
  background: rgba(14, 165, 233, 0.1);
  padding: 0.2em 0.4em;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.9em;
  color: var(--wiki-accent);
}

.wiki-article-content pre {
  background: var(--wiki-text);
  color: var(--wiki-bg);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin-bottom: var(--spacing-lg);
}

.wiki-article-content pre code {
  background: none;
  padding: 0;
  color: var(--wiki-bg);
}

/* ===========================
   FOOTER
   =========================== */

.footer {
  background: rgba(5, 8, 22, 0.95);
  border-top: 1px solid rgba(148, 163, 184, 0.2);
  padding: var(--spacing-2xl) 0;
  margin-top: var(--spacing-3xl);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-xl);
}

.footer-section h3 {
  font-size: 1.1rem;
  margin-bottom: var(--spacing-md);
  color: var(--primary-text);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: var(--gray-400);
  text-decoration: none;
  transition: color var(--transition-fast);
  font-size: 0.95rem;
}

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

.social-links {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(148, 163, 184, 0.3);
  border-radius: 50%;
  color: var(--gray-400);
  text-decoration: none;
  transition: all var(--transition-fast);
  font-size: 1.2rem;
}

.social-link:hover {
  border-color: var(--primary-accent);
  color: var(--primary-accent);
  transform: translateY(-2px);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-xl);
  border-top: 1px solid rgba(148, 163, 184, 0.1);
  color: var(--gray-500);
  font-size: 0.9rem;
}

/* ===========================
   RESPONSIVE DESIGN
   =========================== */

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-description {
    font-size: 1.1rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }
  
  .nav-menu {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(5, 8, 22, 0.98);
    padding: var(--spacing-lg);
    border-bottom: 1px solid rgba(148, 163, 184, 0.2);
  }
  
  .nav-menu.active {
    display: flex;
  }
  
  .nav-toggle {
    display: block;
  }
  
  .about-content {
    grid-template-columns: 1fr;
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
  }
  
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
  
  .wiki-layout {
    grid-template-columns: 1fr;
  }
  
  .wiki-sidebar {
    position: static;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .container {
    padding: 0 var(--spacing-md);
  }
  
  .card {
    padding: var(--spacing-lg);
  }
}

/* ===========================
   ANIMATIONS
   =========================== */

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ===========================
   ACCESSIBILITY
   =========================== */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

:focus-visible {
  outline: 2px solid var(--primary-accent);
  outline-offset: 2px;
}

/* ===========================
   PRINT STYLES
   =========================== */

@media print {
  .navbar,
  .footer,
  .nav-toggle,
  .btn {
    display: none;
  }
  
  body {
    background: white;
    color: black;
  }
  
  .card {
    border: 1px solid #ccc;
    box-shadow: none;
  }
}