/* SMART Goals Planner - Dark Theme (Blue/Purple) */
:root {
  --bg-0: #0b0f17;
  --bg-1: #111827;
  --bg-2: #0f172a;
  --text-0: #e5e7eb;
  --text-1: #cbd5e1;
  --muted: #94a3b8;
  --primary: #6d28d9; /* purple */
  --primary-600: #7c3aed;
  --primary-700: #5b21b6;
  --accent: #2563eb; /* blue */
  --accent-600: #1d4ed8;
  --success: #10b981;
  --danger: #ef4444;
  --card: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02));
  --ring: 0 0 0 3px rgba(124, 58, 237, 0.35);
  --radius: 14px;
  --shadow-1: 0 10px 30px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1200px 800px at 80% -10%, rgba(37, 99, 235, 0.25), transparent),
              radial-gradient(900px 700px at -10% -20%, rgba(124, 58, 237, 0.25), transparent),
              var(--bg-0);
  color: var(--text-0);
  letter-spacing: 0.1px;
}

.app-header {
  padding: 36px 24px 12px;
  text-align: center;
}
.app-header .brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.logo {
  width: 40px; height: 40px; border-radius: 10px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--primary));
  box-shadow: 0 10px 20px rgba(124,58,237,0.35), inset 0 0 12px rgba(255,255,255,0.08);
}
.app-header h1 { margin: 0; font-size: 28px; font-weight: 700; }
.subtitle { color: var(--muted); margin: 8px 0 0; }
.smart-desc { color: var(--text-1); max-width: 900px; margin: 12px auto 0; line-height: 1.5; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 980px) {
  .container { grid-template-columns: 1fr 1fr; }
}

.card {
  background: var(--card);
  border: 1px solid rgba(148,163,184,0.15);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
  overflow: hidden;
}
.card-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 18px 0 18px;
}
.card-header h2 { margin: 0; font-size: 18px; }

.form-card { padding: 6px 18px 18px; }
.preview-card { padding: 6px 18px 18px; }

.field-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
@media (min-width: 680px) {
  .field-grid { grid-template-columns: 1fr 1fr; }
}
.field.full { grid-column: 1 / -1; }

.field label { display: block; margin-bottom: 8px; color: var(--text-1); }
.field input, .field textarea, select {
  width: 100%;
  background: rgba(15, 23, 42, 0.7);
  color: var(--text-0);
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: 12px;
  padding: 12px 14px;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.field textarea { resize: vertical; }
.field input::placeholder, .field textarea::placeholder { color: #64748b; }
.field input:focus, .field textarea:focus, select:focus { border-color: var(--primary-600); box-shadow: var(--ring); }

.help { color: var(--muted); font-size: 12px; margin-top: 6px; }

.actions-row { display: flex; gap: 10px; flex-wrap: wrap; }

.btn {
  appearance: none; border: 1px solid rgba(148,163,184,0.2);
  background: rgba(17, 24, 39, 0.7);
  color: var(--text-0);
  padding: 10px 14px; border-radius: 12px;
  cursor: pointer; transition: transform 0.05s ease, background 0.2s ease, border-color 0.2s ease;
}
.btn:hover { background: rgba(17, 24, 39, 0.9); }
.btn:active { transform: translateY(1px); }
.btn.primary { background: linear-gradient(135deg, var(--accent-600), var(--primary-600)); border-color: rgba(124,58,237,0.5); }
.btn.primary:hover { filter: brightness(1.05); }
.btn.ghost { background: transparent; }
.btn.danger { border-color: rgba(239,68,68,0.45); color: #fecaca; }
.btn.file-label { display: inline-flex; align-items: center; gap: 8px; }

.form-footer {
  margin-top: 14px; display: flex; align-items: center; justify-content: space-between; gap: 10px;
}
.form-footer .left { display: flex; gap: 8px; align-items: center; }
.form-footer .right { display: flex; gap: 8px; align-items: center; }

.preview {
  background: rgba(15, 23, 42, 0.55);
  border: 1px solid rgba(148, 163, 184, 0.15);
  border-radius: 12px;
  padding: 16px;
}
.preview-title { margin: 4px 0 8px; }
.preview .section {
  margin: 10px 0 14px;
  padding: 12px;
  border-radius: 10px;
  background: linear-gradient(180deg, rgba(124,58,237,0.08), rgba(37,99,235,0.06));
  border: 1px solid rgba(124,58,237,0.25);
}
.preview .section h4 {
  margin: 0 0 6px;
  color: #c7d2fe;
}
.preview .meta { color: var(--muted); font-size: 13px; }

.invalid { border-color: rgba(239, 68, 68, 0.7) !important; }
.validation-message { color: #fecaca; font-size: 12px; margin-top: 6px; }

.app-footer { text-align: center; color: var(--muted); padding: 16px; }
.muted { color: var(--muted); }

/* Print styles */
@media print {
  body { background: white; color: black; }
  .app-header, .form-card, .app-footer { display: none; }
  .preview-card { box-shadow: none; border: none; }
  .preview { background: white; color: black; border: none; }
  .preview .section { background: none; border: 1px solid #ddd; }
}