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

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

:root {
  /* Core Colors */
  --green: #10b981;
  --green-dark: #059669;
  --green-deep: #047857;
  --green-light: #d1fae5;
  --green-xlight: #ecfdf5;
  
  --dark: #0f172a;
  --navy: #1e293b;
  --gray: #64748b;
  --gray-light: #94a3b8;
  --gray-xlight: #cbd5e1;
  
  --bg: #f8fafc;
  --bg-dark: #0f172a;
  --bg-card: #ffffff;
  
  --border: #e2e8f0;
  --border-2: #f1f5f9;
  --border-dark: #334155;

  /* State Colors */
  --yellow-bg: #fffbeb; --yellow-text: #b45309; --yellow-border: #fde68a;
  --blue-bg: #eff6ff; --blue-text: #1d4ed8; --blue-border: #bfdbfe;
  --purple-bg: #f5f3ff; --purple-text: #6d28d9; --purple-border: #ddd6fe;
  --ok-bg: #f0fdf4; --ok-text: #15803d; --ok-border: #bbf7d0;
  --red-bg: #fef2f2; --red-text: #b91c1b; --red-border: #fecaca;

  /* Shadows (Premium layered shadows) */
  --sh-sm: 0 1px 3px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.03);
  --sh: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -1px rgba(0,0,0,0.03);
  --sh-md: 0 10px 15px -3px rgba(0,0,0,0.05), 0 4px 6px -2px rgba(0,0,0,0.03);
  --sh-lg: 0 20px 25px -5px rgba(0,0,0,0.08), 0 10px 10px -5px rgba(0,0,0,0.03);
  --sh-xl: 0 25px 50px -12px rgba(0,0,0,0.25);
  --sh-brand: 0 8px 16px rgba(16, 185, 129, 0.25);
  
  /* Radii */
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --r-xl: 24px;
  --r-full: 9999px;

  /* Transitions */
  --trans-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --trans-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --trans-bounce: 400ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ─── DARK MODE ─── */
[data-theme="dark"] {
  --green: #34d399;
  --green-dark: #10b981;
  --green-deep: #059669;
  --green-light: #064e3b;
  --green-xlight: #052e24;

  --dark: #f1f5f9;
  --navy: #e2e8f0;
  --gray: #94a3b8;
  --gray-light: #64748b;
  --gray-xlight: #475569;

  --bg: #0b0e14;
  --bg-dark: #070a0f;
  --bg-card: #141821;

  --border: #1e293b;
  --border-2: #1a1f2e;
  --border-dark: #0f172a;

  --yellow-bg: #1a1708; --yellow-text: #fbbf24; --yellow-border: #713f12;
  --blue-bg: #0c1524; --blue-text: #60a5fa; --blue-border: #1e3a5f;
  --purple-bg: #15102a; --purple-text: #a78bfa; --purple-border: #3b235f;
  --ok-bg: #052e16; --ok-text: #4ade80; --ok-border: #14532d;
  --red-bg: #1c0a0a; --red-text: #f87171; --red-border: #7f1d1d;

  --sh-sm: 0 1px 3px rgba(0,0,0,0.3), 0 1px 2px rgba(0,0,0,0.2);
  --sh: 0 4px 6px -1px rgba(0,0,0,0.3), 0 2px 4px -1px rgba(0,0,0,0.2);
  --sh-md: 0 10px 15px -3px rgba(0,0,0,0.35), 0 4px 6px -2px rgba(0,0,0,0.2);
  --sh-lg: 0 20px 25px -5px rgba(0,0,0,0.4), 0 10px 10px -5px rgba(0,0,0,0.2);
  --sh-xl: 0 25px 50px -12px rgba(0,0,0,0.5);
  --sh-brand: 0 8px 16px rgba(52, 211, 153, 0.2);
}

body {
  font-family: 'Plus Jakarta Sans', -apple-system, sans-serif;
  background: var(--bg);
  color: var(--navy);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background .3s, color .3s;
}

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

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

@keyframes popIn {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

/* Base Utilities */
.glass {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.3);
}
[data-theme="dark"] .glass {
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.glass-dark {
  background: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.animate-slide-up {
  animation: slideUpFade var(--trans-base) forwards;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--r-md);
  font-weight: 700;
  font-family: inherit;
  font-size: 15px;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--trans-base);
  border: none;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: var(--green);
  color: white;
  box-shadow: var(--sh-brand);
}

.btn-primary:hover {
  background: var(--green-dark);
  box-shadow: 0 12px 20px rgba(16, 185, 129, 0.3);
  transform: translateY(-2px);
}

.btn-primary:disabled {
  background: var(--green-light);
  color: white;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-ghost {
  background: transparent;
  color: var(--navy);
  border: 1.5px solid var(--border);
}

.btn-ghost:hover {
  border-color: var(--green);
  color: var(--green);
  background: var(--green-xlight);
}

.input-field {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--r-md);
  border: 1.5px solid var(--border);
  background: var(--bg-card);
  color: var(--navy);

  font-family: inherit;
  font-size: 15px;
  transition: all var(--trans-fast);
  outline: none;
}

.input-field:focus {
  border-color: var(--green);
  background: var(--bg-card);
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.1);
}

.input-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--gray);
  margin-bottom: 6px;
}