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

:root {
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Animation Easing */
  --ease-smooth: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-elastic: cubic-bezier(0.4, 0, 0.2, 1);

  /* Spacing Scale */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;

  /* DARK THEME (Premium Obsidian) */
  --bg-color: #0a0a0a;
  --bg-secondary: #111111;
  --fg: #ffffff;
  --fg-secondary: rgba(255, 255, 255, 0.65);
  --fg-muted: rgba(255, 255, 255, 0.45);
  --fg-dim: rgba(255, 255, 255, 0.25);

  --card-bg: rgba(255, 255, 255, 0.05);
  --card-border: rgba(255, 255, 255, 0.08);
  --card-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  --card-hover-bg: rgba(255, 255, 255, 0.1);
  --card-hover-border: rgba(255, 255, 255, 0.15);

  --accent-btn-bg: rgba(255, 255, 255, 0.12);
  --accent-btn-hover: rgba(255, 255, 255, 0.18);

  /* Accent Colors */
  --accent-primary: #00d4ff;
  --accent-secondary: #7c3aed;
  --accent-tertiary: #ec4899;

  --error: #ff453a;
  --error-bg: rgba(255, 69, 58, 0.1);
  --success: #32d74b;
  --success-bg: rgba(50, 215, 75, 0.1);
  --warning: #ff9500;
  --warning-bg: rgba(255, 149, 0, 0.1);

  --glow-1: rgba(140, 50, 255, 0.2);
  --glow-2: rgba(50, 140, 255, 0.2);
  --glow-3: rgba(0, 212, 255, 0.15);
}

[data-theme='light'] {
  /* LIGHT THEME (Modern Clean) */
  --bg-color: #fafbfc;
  --bg-secondary: #f0f1f3;
  --fg: #0f0f12;
  --fg-secondary: rgba(15, 15, 18, 0.7);
  --fg-muted: rgba(15, 15, 18, 0.5);
  --fg-dim: rgba(15, 15, 18, 0.3);

  --card-bg: rgba(255, 255, 255, 0.7);
  --card-border: rgba(0, 0, 0, 0.06);
  --card-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
  --card-hover-bg: rgba(255, 255, 255, 0.95);
  --card-hover-border: rgba(0, 0, 0, 0.12);

  --accent-btn-bg: rgba(0, 0, 0, 0.07);
  --accent-btn-hover: rgba(0, 0, 0, 0.14);

  --accent-primary: #0080cc;
  --accent-secondary: #8e44ad;
  --accent-tertiary: #e74c8c;

  --error: #ff3b30;
  --error-bg: rgba(255, 59, 48, 0.08);
  --success: #34c759;
  --success-bg: rgba(52, 199, 89, 0.08);
  --warning: #ff9500;
  --warning-bg: rgba(255, 149, 0, 0.08);

  --glow-1: rgba(140, 50, 255, 0.15);
  --glow-2: rgba(50, 140, 255, 0.15);
  --glow-3: rgba(0, 128, 204, 0.1);
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-10px); }
  to { opacity: 1; transform: translateX(0); }
}

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

@keyframes shimmer {
  0% { background-position: -1000px 0; }
  100% { background-position: 1000px 0; }
}

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

html, body {
  height: 100%;
}

body {
  min-height: 100vh;
  font-family: var(--font);
  color: var(--fg);
  background-color: var(--bg-color);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color 400ms ease, color 400ms ease;
  position: relative;
}

/* Premium Ambient Glow Orbs - Enhanced */
body::before, body::after {
  content: '';
  position: fixed;
  width: 80vw;
  height: 80vw;
  border-radius: 50%;
  filter: blur(180px);
  -webkit-filter: blur(180px);
  z-index: -1;
  pointer-events: none;
  opacity: 0.6;
  transition: background 400ms ease;
}

body::before {
  top: -30vw;
  left: -20vw;
  background: var(--glow-1);
}

body::after {
  bottom: -30vw;
  right: -20vw;
  background: var(--glow-2);
}

a {
  text-decoration: none;
  color: inherit;
  transition: color 250ms var(--ease-smooth);
}

button {
  cursor: pointer;
  border: none;
  outline: none;
  font-family: var(--font);
  font-weight: 600;
  transition: all 250ms var(--ease-smooth);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Scrollbar - Refined */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--card-border);
  border-radius: 10px;
  transition: background 250ms ease;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--fg-muted);
}

/* Premium Input Styles */
input[type="text"],
input[type="password"],
input[type="url"],
input[type="email"],
textarea,
select {
  width: 100%;
  padding: 0.9rem 1.1rem;
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1.5px solid var(--card-border);
  border-radius: 12px;
  color: var(--fg);
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 500;
  outline: none;
  transition: all 280ms var(--ease-smooth);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.02);
}

input:hover:not(:focus),
textarea:hover:not(:focus),
select:hover:not(:focus) {
  border-color: var(--card-hover-border);
  background: var(--card-hover-bg);
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--accent-primary);
  background: var(--card-hover-bg);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1), inset 0 2px 4px rgba(0, 0, 0, 0.02);
}

input::placeholder,
textarea::placeholder {
  color: var(--fg-muted);
  font-weight: 400;
}