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

/* ================================
   CyberX CTF - Premium Design System
   ================================ */

:root {
  /* Primary Colors */
  --primary-cyan: #00fff7;
  --primary-magenta: #ff00ff;
  --primary-purple: #8b5cf6;

  /* Gradients */
  --bg-gradient: radial-gradient(ellipse at top, #0f0c29 0%, #302b63 50%, #24243e 100%);
  --card-gradient: linear-gradient(135deg, rgba(15, 12, 41, 0.9) 0%, rgba(48, 43, 99, 0.8) 100%);
  --button-gradient: linear-gradient(135deg, #00fff7 0%, #00bcd4 100%);
  --glow-gradient: linear-gradient(90deg, #00fff7, #ff00ff, #00fff7);

  /* Glass Effects */
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.15);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);

  /* Status Colors */
  --error-red: #ff4f4f;
  --success-green: #00e676;
  --warning-yellow: #ffd700;

  /* Fonts */
  --font-orbitron: 'Orbitron', sans-serif;
  --font-poppins: 'Poppins', sans-serif;

  /* Spacing */
  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 20px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;
}

/* ================================
   Base Styles
   ================================ */

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

body {
  font-family: var(--font-poppins);
  background: var(--bg-gradient);
  background-attachment: fixed;
  color: white;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 20px;
  position: relative;
  overflow-x: hidden;
}

/* ================================
   Typography
   ================================ */

h1,
h2,
h3 {
  font-family: var(--font-orbitron);
  text-align: center;
  margin-bottom: var(--spacing-md);
  color: var(--primary-cyan);
  text-shadow: 0 0 20px var(--primary-cyan);
  font-weight: 800;
  letter-spacing: 2px;
}

h1 {
  font-size: clamp(1.8rem, 5vw, 3rem);
}

h2 {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
}

p {
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.9);
}

/* ================================
   Container & Cards
   ================================ */

.container {
  max-width: 800px;
  width: 90%;
  background: var(--glass-bg);
  border: 2px solid var(--glass-border);
  border-radius: 24px;
  padding: var(--spacing-xl) var(--spacing-lg);
  backdrop-filter: blur(20px);
  box-shadow: var(--glass-shadow),
    0 0 40px rgba(0, 255, 247, 0.1);
  animation: fadeIn 0.8s ease-out, pulseGlow 4s ease-in-out infinite;
  position: relative;
  overflow: hidden;
}

.container::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: var(--glow-gradient);
  border-radius: 24px;
  z-index: -1;
  opacity: 0;
  transition: opacity 0.3s ease;
  animation: rotate 4s linear infinite;
}

.container:hover::before {
  opacity: 0.3;
}

/* ================================
   Buttons
   ================================ */

.btn {
  background: var(--button-gradient);
  color: #0f0c29;
  padding: 14px 32px;
  margin: 10px 5px;
  border: none;
  border-radius: 12px;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  font-family: var(--font-orbitron);
  transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  box-shadow: 0 4px 15px rgba(0, 255, 247, 0.4);
  text-decoration: none;
  display: inline-block;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 8px 25px rgba(0, 255, 247, 0.6),
    0 0 30px rgba(0, 255, 247, 0.4);
}

.btn:active {
  transform: translateY(-1px) scale(1.02);
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

/* ================================
   Forms
   ================================ */

.flag-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

input[type="text"],
input[type="password"],
input[type="email"] {
  padding: 16px 20px;
  border-radius: 12px;
  border: 2px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.05);
  font-size: 1rem;
  color: white;
  outline: none;
  font-family: var(--font-poppins);
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="email"]:focus {
  border-color: var(--primary-cyan);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 20px rgba(0, 255, 247, 0.3),
    inset 0 0 10px rgba(0, 255, 247, 0.1);
}

input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

/* ================================
   Result Messages
   ================================ */

.result-placeholder {
  margin-top: var(--spacing-md);
  font-weight: 600;
  font-size: 1.1rem;
  text-align: center;
  padding: var(--spacing-md);
  border-radius: 12px;
  min-height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.error-message {
  color: var(--error-red);
  background: rgba(255, 79, 79, 0.1);
  border: 2px solid var(--error-red);
  animation: shake 0.5s, fadeIn 0.3s;
}

.success-message {
  color: var(--success-green);
  background: rgba(0, 230, 118, 0.1);
  border: 2px solid var(--success-green);
  animation: successPop 0.5s, pulseGlow 2s ease-in-out infinite;
}

/* ================================
   Flag Counter
   ================================ */

.flag-counter {
  position: fixed;
  top: 30px;
  left: 30px;
  background: rgba(0, 0, 0, 0.7);
  padding: 15px 25px;
  border-radius: 16px;
  color: var(--primary-cyan);
  font-family: var(--font-orbitron);
  font-size: 1.1rem;
  font-weight: 600;
  border: 2px solid var(--primary-cyan);
  backdrop-filter: blur(10px);
  z-index: 999;
  box-shadow: 0 4px 20px rgba(0, 255, 247, 0.3);
  transition: all 0.3s ease;
}

.flag-counter:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 30px rgba(0, 255, 247, 0.5);
}

.flag-counter span {
  color: white;
  font-size: 1.3rem;
  margin-left: 8px;
}

/* ================================
   Leaderboard
   ================================ */

.scoreboard-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin-top: var(--spacing-lg);
  overflow: hidden;
  border-radius: 12px;
}

.scoreboard-table th,
.scoreboard-table td {
  padding: 16px;
  text-align: center;
  border-bottom: 1px solid rgba(0, 255, 247, 0.2);
}

.scoreboard-table th {
  background: linear-gradient(135deg, rgba(0, 255, 247, 0.2), rgba(139, 92, 246, 0.2));
  font-family: var(--font-orbitron);
  color: var(--primary-cyan);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.scoreboard-table td {
  background: rgba(255, 255, 255, 0.03);
  color: #eee;
  transition: all 0.3s ease;
}

.scoreboard-table tr:hover td {
  background: rgba(0, 255, 247, 0.1);
  transform: scale(1.02);
}

.scoreboard-table tr:first-child td {
  color: #ffd700;
  font-weight: 700;
  font-size: 1.1rem;
}

/* ================================
   Welcome Page
   ================================ */

.welcome-body {
  font-family: var(--font-orbitron);
  background: radial-gradient(ellipse at center, #0f0c29 0%, #302b63 50%, #24243e 100%);
  background-attachment: fixed;
}

.welcome-card {
  background: var(--glass-bg);
  border: 2px solid rgba(0, 255, 247, 0.3);
  backdrop-filter: blur(20px);
  padding: var(--spacing-xl) 60px;
  border-radius: 24px;
  box-shadow: 0 0 50px rgba(0, 255, 247, 0.3),
    inset 0 0 50px rgba(0, 255, 247, 0.05);
  text-align: center;
  max-width: 900px;
  width: 90%;
  animation: fadeIn 1s ease-out, float 6s ease-in-out infinite;
}

.cyber-heading {
  font-size: clamp(2rem, 5vw, 3.5rem);
  color: var(--primary-cyan);
  text-shadow: 0 0 20px var(--primary-cyan),
    0 0 40px var(--primary-cyan),
    0 0 60px var(--primary-cyan);
  animation: glowPulse 3s infinite ease-in-out;
  margin-bottom: var(--spacing-lg);
}

/* ================================
   Instruction List
   ================================ */

.instruction-list {
  list-style: none;
  text-align: left;
  margin: var(--spacing-lg) 0;
}

.instruction-list li {
  padding: var(--spacing-sm) var(--spacing-md);
  margin: var(--spacing-sm) 0;
  background: rgba(0, 255, 247, 0.05);
  border-left: 4px solid var(--primary-cyan);
  border-radius: 8px;
  transition: all 0.3s ease;
}

.instruction-list li:hover {
  background: rgba(0, 255, 247, 0.1);
  transform: translateX(10px);
  border-left-width: 6px;
}

/* ================================
   Utilities
   ================================ */

.shake {
  animation: shake 0.5s;
}

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

.mt-1 {
  margin-top: var(--spacing-xs);
}

.mt-2 {
  margin-top: var(--spacing-sm);
}

.mt-3 {
  margin-top: var(--spacing-md);
}

.mt-4 {
  margin-top: var(--spacing-lg);
}

.mb-1 {
  margin-bottom: var(--spacing-xs);
}

.mb-2 {
  margin-bottom: var(--spacing-sm);
}

.mb-3 {
  margin-bottom: var(--spacing-md);
}

.mb-4 {
  margin-bottom: var(--spacing-lg);
}

/* ================================
   Responsive Design
   ================================ */

@media (max-width: 768px) {
  .container {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .btn {
    display: block;
    width: 100%;
    margin: 10px 0;
  }

  .flag-counter {
    font-size: 0.9rem;
    padding: 12px 18px;
    top: 15px;
    left: 15px;
  }

  .welcome-card {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .scoreboard-table th,
  .scoreboard-table td {
    padding: 12px 8px;
    font-size: 0.9rem;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.5rem;
  }

  .container {
    padding: var(--spacing-md);
  }

  .flag-counter {
    position: static;
    margin: var(--spacing-md) auto;
    width: fit-content;
  }
}

/* ================================
   Custom Scrollbar
   ================================ */

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

::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.3);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--primary-cyan), var(--primary-purple));
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--primary-magenta), var(--primary-cyan));
}

/* ================================
   Loading States
   ================================ */

.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(0, 255, 247, 0.3);
  border-radius: 50%;
  border-top-color: var(--primary-cyan);
  animation: spin 1s linear infinite;
}

/* ================================
   Animations (from animations.css)
   ================================ */

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

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

@keyframes glowPulse {

  0%,
  100% {
    text-shadow: 0 0 10px var(--primary-cyan), 0 0 20px var(--primary-cyan);
  }

  50% {
    text-shadow: 0 0 20px var(--primary-cyan), 0 0 40px var(--primary-cyan), 0 0 60px var(--primary-cyan);
  }
}

@keyframes pulseGlow {

  0%,
  100% {
    box-shadow: 0 0 10px rgba(0, 255, 247, 0.3);
  }

  50% {
    box-shadow: 0 0 30px rgba(0, 255, 247, 0.5);
  }
}

@keyframes shake {

  0%,
  100% {
    transform: translateX(0);
  }

  25% {
    transform: translateX(-10px);
  }

  75% {
    transform: translateX(10px);
  }
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0px);
  }

  50% {
    transform: translateY(-20px);
  }
}

@keyframes rotate {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes successPop {
  0% {
    transform: scale(0);
    opacity: 0;
  }

  50% {
    transform: scale(1.1);
  }

  100% {
    transform: scale(1);
    opacity: 1;
  }
}