/* ══════════════════════════════════════════════════════════════════════════
   BASE.CSS — Design Tokens, Reset, Shared Components
   Used by: index.html, login.html, app.html, pages/*.html
   ════════════════════════════════════════════════════════════════════════ */

:root {
  /* Colors */
  --bg:            #f3f3f8;
  --surface:       #ffffff;
  --panel:         #f9f9fd;
  --panel-2:       #ededf7;
  --line:          #e2e2ee;
  --line-2:        #c8c8de;
  --text:          #1c1c30;
  --text-2:        #3a3a56;
  --muted:         #7474a0;

  --primary:       #6366f1;
  --primary-dark:  #4f46e5;
  --primary-light: #eef2ff;
  --primary-glow:  #6366f130;

  --success:       #10b981;
  --success-light: #ecfdf5;
  --danger:        #ef4444;
  --danger-light:  #fef2f2;
  --warning:       #f59e0b;
  --warning-light: #fffbeb;

  /* Radii */
  --r-sm: 0.6rem;
  --r-md: 1rem;
  --r-lg: 1.3rem;
  --r-xl: 1.75rem;

  /* Shadows */
  --shadow-xs: 0 1px 3px #6366f110, 0 1px 2px #00000008;
  --shadow-sm: 0 2px 8px #6366f114, 0 1px 3px #00000010;
  --shadow-md: 0 6px 24px #6366f118, 0 2px 8px #00000012;
  --shadow-lg: 0 12px 48px #6366f124, 0 4px 16px #00000014;
  --shadow-xl: 0 24px 80px #6366f130, 0 8px 24px #0000001a;

  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --t:    160ms;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: Inter, system-ui, -apple-system, sans-serif;
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

/* ── Scrollbars ─────────────────────────────────────────────────────────── */
::-webkit-scrollbar        { width: 5px; height: 5px; }
::-webkit-scrollbar-track  { background: transparent; }
::-webkit-scrollbar-thumb  { background: var(--line-2); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: #a5a5c8; }

/* ── Animated gradient background ──────────────────────────────────────── */
.app-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 90% 65% at 15% -5%,  #dde4ff 0%, transparent 55%),
    radial-gradient(ellipse 65% 55% at 88% 108%, #fce7f3 0%, transparent 55%),
    radial-gradient(ellipse 50% 40% at 50%  50%, #f0ebff 0%, transparent 70%),
    #f3f3f8;
}

/* ── Utilities ──────────────────────────────────────────────────────────── */
.hidden { display: none !important; }

.row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  align-items: center;
}

/* ── Brand ──────────────────────────────────────────────────────────────── */
.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
  letter-spacing: -0.01em;
  text-decoration: none;
}

.brand-mark {
  font-size: 1.3rem;
  line-height: 1;
  background: linear-gradient(135deg, var(--primary), #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Pills ──────────────────────────────────────────────────────────────── */
.pill {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text-2);
  padding: 0.2rem 0.65rem;
  border-radius: 99px;
  font-size: 0.75rem;
  font-weight: 500;
  box-shadow: var(--shadow-xs);
}

.pill.secure { color: var(--success); background: var(--success-light); border-color: #a7f3d0; }

/* ── Buttons ────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text-2);
  border-radius: var(--r-md);
  padding: 0.6rem 1.1rem;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
  box-shadow: var(--shadow-xs);
  outline: none;
  transition:
    background var(--t) var(--ease),
    border-color var(--t) var(--ease),
    box-shadow var(--t) var(--ease),
    color var(--t) var(--ease),
    transform var(--t) var(--ease);
}

.btn:hover:not(:disabled)  { background: var(--panel-2); border-color: var(--line-2); box-shadow: var(--shadow-sm); }
.btn:active:not(:disabled) { transform: scale(0.97); box-shadow: var(--shadow-xs); }
.btn:focus-visible         { box-shadow: 0 0 0 3px var(--primary-glow); border-color: var(--primary); }
.btn:disabled              { opacity: 0.42; cursor: not-allowed; }

.btn.small { padding: 0.38rem 0.75rem; font-size: 0.8rem; border-radius: var(--r-sm); }

.btn.large {
  padding: 0.82rem 1.7rem;
  font-size: 1rem;
  border-radius: var(--r-lg);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  border: none;
  box-shadow: 0 2px 10px var(--primary-glow), var(--shadow-xs);
}
.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, #7577f6, var(--primary));
  box-shadow: 0 4px 20px #6366f145, var(--shadow-sm);
}

.btn-success {
  background: linear-gradient(135deg, var(--success), #059669);
  color: #fff; border: none;
  box-shadow: 0 2px 10px #10b98128;
}
.btn-success:hover:not(:disabled) { background: linear-gradient(135deg, #12c98a, var(--success)); }

.btn-danger {
  background: linear-gradient(135deg, var(--danger), #dc2626);
  color: #fff; border: none;
  box-shadow: 0 2px 10px #ef444428;
}
.btn-danger:hover:not(:disabled) { background: linear-gradient(135deg, #f46060, var(--danger)); }

/* ── Inputs ─────────────────────────────────────────────────────────────── */
input, select, textarea {
  background: var(--surface);
  border: 1.5px solid var(--line);
  border-radius: var(--r-sm);
  color: var(--text);
  padding: 0.65rem 0.9rem;
  font-family: inherit;
  font-size: 0.875rem;
  width: 100%;
  outline: none;
  box-shadow: var(--shadow-xs);
  transition: border-color var(--t) var(--ease), box-shadow var(--t) var(--ease);
  appearance: none;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow), var(--shadow-xs);
}

input::placeholder, textarea::placeholder { color: var(--muted); }
input[readonly] { background: var(--panel); color: var(--muted); cursor: default; }

label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-2);
  margin-bottom: 0.35rem;
}

.field { display: flex; flex-direction: column; gap: 0; }

.field-error {
  font-size: 0.78rem;
  color: var(--danger);
  margin-top: 0.3rem;
  display: none;
}
.field-error.visible { display: block; }

/* ── Status ─────────────────────────────────────────────────────────────── */
.status { font-size: 0.82rem; color: var(--muted); margin-top: 0.4rem; }
.status.error   { color: var(--danger); }
.status.success { color: var(--success); }

/* ── Page Footer (shared) ───────────────────────────────────────────────── */
.page-footer {
  background: var(--surface);
  border-top: 1px solid var(--line);
  padding: 1.5rem 2rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 2rem;
}

.footer-links {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.footer-links a {
  font-size: 0.82rem;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--t) var(--ease);
}
.footer-links a:hover { color: var(--primary); }

.footer-copy {
  font-size: 0.78rem;
  color: var(--muted);
  margin-left: auto;
}

/* ── Animations ─────────────────────────────────────────────────────────── */
@keyframes fadeIn  { from { opacity: 0; }                         to { opacity: 1; } }
@keyframes fadeUp  { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: translateY(0); } }
@keyframes spin    { to { transform: rotate(360deg); } }