/* ========================================
   CYBERTEC8 - UNIFIED CYBER SECURITY THEME
   Professional CTF Platform Design System
   ======================================== */

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

/* ========================================
   CSS VARIABLES - CYBER THEME
   ======================================== */

:root {
  /* Background Colors - Deep Navy */
  --cyber-bg-primary: #020c1b;
  --cyber-bg-secondary: #0a1929;
  --cyber-bg-tertiary: #0e1626;
  --cyber-bg-card: rgba(10, 25, 41, 0.6);
  --cyber-bg-card-solid: #0d1421;

  /* Glassmorphism */
  --glass-bg: rgba(10, 25, 41, 0.7);
  --glass-border: rgba(0, 243, 255, 0.15);
  --glass-blur: blur(20px) saturate(180%);

  /* Accent Colors */
  --cyber-green: #00ff88;
  --cyber-green-hover: #00cc6a;
  --cyber-green-glow: rgba(0, 255, 136, 0.2);

  --cyber-cyan: #00f3ff;
  --cyber-cyan-hover: #00d4e6;
  --cyber-cyan-glow: rgba(0, 243, 255, 0.2);

  --cyber-blue: #06b6d4;
  --cyber-purple: #a855f7;
  --cyber-red: #ef4444;
  --cyber-yellow: #fbbf24;

  /* Text Colors */
  --cyber-text-primary: #ffffff;
  --cyber-text-secondary: #e5e7eb;
  --cyber-text-muted: #9ca3af;
  --cyber-text-dim: #6b7280;

  /* Borders & Dividers */
  --cyber-border: rgba(0, 243, 255, 0.1);
  --cyber-border-hover: rgba(0, 243, 255, 0.3);
  --cyber-border-glow: rgba(0, 255, 136, 0.3);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.6);
  --shadow-glow-green: 0 0 20px var(--cyber-green-glow);
  --shadow-glow-cyan: 0 0 20px var(--cyber-cyan-glow);

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;

  /* Typography */
  --font-heading: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-sans: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ========================================
   GLOBAL STYLES
   ======================================== */

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

*:focus,
*:focus-visible,
*:focus-within {
  outline: none !important;
  box-shadow: none !important;
}

/* Remove default focus for links and buttons to prevent square boxes */
a:focus,
a:focus-visible,
button:focus,
button:focus-visible,
.nav-link:focus,
.nav-link:focus-visible,
.btn:focus,
.btn:focus-visible {
  outline: none !important;
  box-shadow: none !important;
  text-decoration: none !important;
}

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

/* Dark Gradient Background */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(0, 243, 255, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 0% 100%, rgba(0, 255, 136, 0.03) 0%, transparent 50%);
  pointer-events: none;
  z-index: -1;
}

/* Subtle Grid Pattern */
.cyber-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 243, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 243, 255, 0.02) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
  z-index: -1;
  opacity: 0.5;
}

/* ========================================
   TYPOGRAPHY
   ======================================== */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--cyber-text-primary);
}

h1 {
  font-size: 2.5rem;
  font-weight: 700;
}

h2 {
  font-size: 2rem;
  font-weight: 700;
}

h3 {
  font-size: 1.5rem;
  font-weight: 600;
}

h4 {
  font-size: 1.25rem;
  font-weight: 600;
}

h5 {
  font-size: 1rem;
  font-weight: 600;
}

h6 {
  font-size: 0.875rem;
  font-weight: 600;
}

p {
  font-family: var(--font-body);
  color: var(--cyber-text-secondary);
  line-height: 1.7;
}

.text-gradient {
  background: linear-gradient(135deg, var(--cyber-cyan), var(--cyber-green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.cyber-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.cyber-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyber-cyan), transparent);
  opacity: 0.5;
}

.cyber-card:hover {
  border-color: var(--cyber-border-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), var(--shadow-glow-cyan);
}

/* Card Variants */
.cyber-card-solid {
  background: var(--cyber-bg-card-solid);
  backdrop-filter: none;
}

.cyber-card-green {
  border-color: rgba(0, 255, 136, 0.2);
}

.cyber-card-green:hover {
  border-color: var(--cyber-green);
  box-shadow: var(--shadow-lg), var(--shadow-glow-green);
}

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

.btn-cyber {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 12px 24px;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-decoration: none;
  border-radius: var(--radius-md);
  border: 1px solid;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

/* Primary Button - Green */
.btn-cyber-primary {
  background: var(--cyber-green);
  border-color: var(--cyber-green);
  color: var(--cyber-bg-primary);
}

.btn-cyber-primary:hover {
  background: var(--cyber-green-hover);
  box-shadow: var(--shadow-glow-green);
  transform: translateY(-2px);
}

/* Secondary Button - Outlined */
.btn-cyber-secondary {
  background: transparent;
  border-color: var(--cyber-cyan);
  color: var(--cyber-cyan);
}

.btn-cyber-secondary:hover {
  background: rgba(0, 243, 255, 0.1);
  box-shadow: var(--shadow-glow-cyan);
  transform: translateY(-2px);
}

/* Ghost Button */
.btn-cyber-ghost {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--cyber-border);
  color: var(--cyber-text-primary);
}

.btn-cyber-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--cyber-border-hover);
}

/* Danger Button */
.btn-cyber-danger {
  background: var(--cyber-red);
  border-color: var(--cyber-red);
  color: white;
}

.btn-cyber-danger:hover {
  background: #dc2626;
  box-shadow: 0 0 20px rgba(239, 68, 68, 0.3);
}

/* Button Sizes */
.btn-cyber-sm {
  padding: 8px 16px;
  font-size: 0.75rem;
}

.btn-cyber-lg {
  padding: 16px 32px;
  font-size: 1rem;
}

/* ========================================
   FORM INPUTS
   ======================================== */

.cyber-input,
.cyber-textarea,
.cyber-select {
  width: 100%;
  padding: 12px 16px;
  background: rgba(10, 25, 41, 0.5);
  border: 1px solid var(--cyber-border);
  border-radius: var(--radius-md);
  color: var(--cyber-text-primary);
  font-family: var(--font-body);
  font-size: 0.875rem;
  transition: all 0.3s ease;
}

.cyber-input:focus,
.cyber-textarea:focus,
.cyber-select:focus {
  outline: none;
  border-color: var(--cyber-cyan);
  box-shadow: 0 0 0 3px var(--cyber-cyan-glow);
  background: rgba(10, 25, 41, 0.7);
}

.cyber-input::placeholder,
.cyber-textarea::placeholder {
  color: var(--cyber-text-dim);
}

.cyber-label {
  display: block;
  margin-bottom: var(--space-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--cyber-text-secondary);
  letter-spacing: 0.01em;
}

/* ========================================
   BADGES
   ======================================== */

.cyber-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: 6px;
  border: 1px solid;
}

.cyber-badge-success {
  background: rgba(0, 255, 136, 0.1);
  border-color: rgba(0, 255, 136, 0.3);
  color: var(--cyber-green);
}

.cyber-badge-info {
  background: rgba(0, 243, 255, 0.1);
  border-color: rgba(0, 243, 255, 0.3);
  color: var(--cyber-cyan);
}

.cyber-badge-warning {
  background: rgba(251, 191, 36, 0.1);
  border-color: rgba(251, 191, 36, 0.3);
  color: var(--cyber-yellow);
}

.cyber-badge-danger {
  background: rgba(239, 68, 68, 0.1);
  border-color: rgba(239, 68, 68, 0.3);
  color: var(--cyber-red);
}

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

.cyber-nav {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--cyber-border);
  padding: var(--space-md) var(--space-xl);
}

/* Navbar Link - Clean Base Style */
.nav-link {
  color: var(--cyber-text-secondary);
  padding: 8px 0;
  margin: 0 14px;
  font-weight: 500;
  font-size: 14px;
  transition: color 0.3s ease;
  position: relative;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  border: none;
  background: transparent;
  cursor: pointer;
}

.nav-link:hover {
  color: var(--cyber-green);
  background: transparent;
}

/* Bracket indicators for active/hover states */
.nav-link::before,
.nav-link::after {
  content: "";
  position: absolute;
  width: 8px;
  height: 8px;
  opacity: 0;
  transition: all 0.3s ease;
  pointer-events: none;
}

.nav-link::before {
  top: 0;
  left: -2px;
  border-top: 2px solid var(--cyber-green);
  border-left: 2px solid var(--cyber-green);
  transform: translate(5px, 5px);
}

.nav-link::after {
  bottom: 0;
  right: -2px;
  border-bottom: 2px solid var(--cyber-green);
  border-right: 2px solid var(--cyber-green);
  transform: translate(-5px, -5px);
}

.nav-link:hover::before,
.nav-link:hover::after,
.nav-link.active::before,
.nav-link.active::after {
  opacity: 1;
  transform: translate(0, 0);
  filter: drop-shadow(0 0 5px var(--cyber-green));
}

/* Ensure navbar fixed z-index and spacing */
.navbar {
  z-index: 1050;
  transition: all 0.3s ease;
}

/* Theme Toggle inside Navbar Alignment */
.theme-toggle-btn {
  border-radius: 10px;
  transition: all 0.3s ease;
}

/* ========================================
   UTILITIES
   ======================================== */

/* Flex */
.flex {
  display: flex;
}

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

.flex-center {
  justify-content: center;
  align-items: center;
}

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

.flex-wrap {
  flex-wrap: wrap;
}

/* Grid */
.grid {
  display: grid;
}

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

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

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.grid-auto {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* Gap */
.gap-xs {
  gap: var(--space-xs);
}

.gap-sm {
  gap: var(--space-sm);
}

.gap-md {
  gap: var(--space-md);
}

.gap-lg {
  gap: var(--space-lg);
}

.gap-xl {
  gap: var(--space-xl);
}

/* Spacing */
.p-sm {
  padding: var(--space-sm);
}

.p-md {
  padding: var(--space-md);
}

.p-lg {
  padding: var(--space-lg);
}

.p-xl {
  padding: var(--space-xl);
}

.m-sm {
  margin: var(--space-sm);
}

.m-md {
  margin: var(--space-md);
}

.m-lg {
  margin: var(--space-lg);
}

.m-xl {
  margin: var(--space-xl);
}

.mb-sm {
  margin-bottom: var(--space-sm);
}

.mb-md {
  margin-bottom: var(--space-md);
}

.mb-lg {
  margin-bottom: var(--space-lg);
}

.mb-xl {
  margin-bottom: var(--space-xl);
}

.mt-sm {
  margin-top: var(--space-sm);
}

.mt-md {
  margin-top: var(--space-md);
}

.mt-lg {
  margin-top: var(--space-lg);
}

.mt-xl {
  margin-top: var(--space-xl);
}

/* Text */
.text-center {
  text-align: center;
}

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

.text-uppercase {
  text-transform: uppercase;
}

.text-primary {
  color: var(--cyber-text-primary);
}

.text-secondary {
  color: var(--cyber-text-secondary);
}

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

.text-green {
  color: var(--cyber-green);
}

.text-cyan {
  color: var(--cyber-cyan);
}

.text-sm {
  font-size: 0.875rem;
}

.text-lg {
  font-size: 1.125rem;
}

.text-xl {
  font-size: 1.25rem;
}

.font-bold {
  font-weight: 700;
}

.font-semibold {
  font-weight: 600;
}

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

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

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes glow {

  0%,
  100% {
    box-shadow: 0 0 10px var(--cyber-cyan-glow);
  }

  50% {
    box-shadow: 0 0 20px var(--cyber-cyan-glow);
  }
}

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

.glow-animation {
  animation: glow 2s ease-in-out infinite;
}

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

@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  h3 {
    font-size: 1.25rem;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .cyber-card {
    padding: var(--space-md);
  }
}

/* ========================================
   CUSTOM CURSOR
   ======================================== */

.custom-cursor {
  width: 12px;
  height: 12px;
  background: var(--cyber-green);
  border: none;
  border-radius: 50%;
  position: fixed;
  pointer-events: none;
  z-index: 10000;
  transform: translate(-50%, -50%);
  transition: opacity 0.3s ease, transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  opacity: 0;
  box-shadow: 0 0 10px var(--cyber-green-glow);
}

.custom-cursor.hovering {
  transform: translate(-50%, -50%) scale(1.8);
  background: var(--cyber-green);
  box-shadow: 0 0 15px var(--cyber-green-glow);
}

/* Hide default cursor on desktop for professional feel */
@media (pointer: fine) {

  body,
  a,
  button,
  .btn-cyber,
  .nav-link,
  input,
  textarea,
  select {
    cursor: none !important;
  }
}

/* Disable on mobile/touch devices */
@media (pointer: coarse) {
  .custom-cursor {
    display: none !important;
  }

  body,
  a,
  button,
  .btn-cyber,
  .nav-link,
  input,
  textarea,
  select {
    cursor: auto !important;
  }
}

/* ========================================
   SCROLLBAR
   ======================================== */

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--cyber-bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--cyber-bg-tertiary);
  border-radius: 5px;
  border: 2px solid var(--cyber-bg-secondary);
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 243, 255, 0.3);
}