@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

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

:root {
  /* Core Colors */
  --bg-deep:       #03050a;
  --bg-base:       #060912;
  --bg-surface:    #0b1020;
  --bg-elevated:   #111827;
  
  /* Borders */
  --border-light:  rgba(99,120,200,0.08);
  --border-glow:   rgba(99,120,200,0.18);
  --border-active: rgba(99,120,200,0.4);
  
  /* Accents */
  --accent-primary: #4f6ef7;
  --accent-purple:  #7c3aed;
  --accent-cyan:    #06b6d4;
  --accent-success: #10b981;
  --accent-warn:    #f59e0b;
  --accent-error:   #ef4444;
  
  /* Text */
  --text-main:     #f8fafc;
  --text-muted:    #94a3b8;
  --text-dim:      #64748b;
  
  /* Utilities */
  --radius-sm:     8px;
  --radius-md:     12px;
  --radius-lg:     20px;
  --shadow-glow:   0 0 60px rgba(79,110,247,0.15);
  --shadow-card:   0 40px 100px rgba(0,0,0,0.4), 0 0 40px rgba(79,110,247,0.05);
  
  --font-sans: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg-base);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ─── NOISE & AMBIENT GLOW ─── */
.noise-overlay {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
}

.ambient-glow {
  position: fixed; top: -20%; left: 50%; transform: translateX(-50%);
  width: 900px; height: 600px; border-radius: 50%;
  background: radial-gradient(ellipse at center, rgba(79,110,247,0.1) 0%, transparent 70%);
  pointer-events: none; z-index: 0;
}

/* ─── TYPOGRAPHY ─── */
h1, h2, h3, h4, h5, h6 { font-weight: 800; line-height: 1.2; letter-spacing: -0.02em; }
.gradient-text {
  background: linear-gradient(135deg, #fff 30%, var(--accent-primary) 80%, var(--accent-purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.mono-text { font-family: var(--font-mono); }

/* ─── GLASSMORPHIC COMPONENTS ─── */
.glass-panel {
  background: rgba(11, 16, 32, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

/* ─── BUTTONS ─── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 20px; border-radius: var(--radius-md); font-weight: 600; font-size: 0.9rem;
  text-decoration: none; border: none; cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-family: var(--font-sans);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-purple));
  color: #fff;
  box-shadow: 0 4px 20px rgba(79,110,247,0.3);
}
.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(79,110,247,0.5);
  filter: brightness(1.1);
}

.btn-ghost {
  background: rgba(255,255,255,0.03);
  color: var(--text-main);
  border: 1px solid var(--border-glow);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.06);
  border-color: var(--border-active);
  transform: translateY(-1px);
}

.btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none !important; box-shadow: none !important; }

/* ─── FORM ELEMENTS ─── */
.form-group { margin-bottom: 1.5rem; }
.form-label {
  display: block; margin-bottom: 8px; font-size: 0.85rem; font-weight: 600;
  color: var(--text-muted); letter-spacing: 0.02em;
}
.form-input {
  width: 100%; padding: 12px 16px;
  background: rgba(0,0,0,0.2);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-md);
  color: var(--text-main); font-size: 0.95rem; font-family: var(--font-sans);
  outline: none; transition: border-color 0.3s, box-shadow 0.3s;
}
.form-input::placeholder { color: var(--text-dim); }
.form-input:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(79,110,247,0.2);
}

/* ─── SPINNER ─── */
.spinner {
  width: 18px; height: 18px; border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff; border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── ANIMATIONS ─── */
@keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.animate-fade-up { animation: fadeUp 0.6s ease-out forwards; }

/* ─── SCROLLBAR ─── */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }