/* ═══════════════════════════════════════
   SIGN IN PAGE — signin.css
═══════════════════════════════════════ */

/* ── Layout ── */
.si-main {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 80px;
  background: #ffffff;
  overflow: hidden;
}

.si-glow {
  position: absolute;
  top: -80px;
  left: 50%;
  transform: translateX(-50%);
  width: 760px;
  height: 480px;
  border-radius: 9999px;
  background: radial-gradient(ellipse 60% 55% at 50% 50%, rgba(16,185,129,0.1) 0%, rgba(16,185,129,0) 70%);
  filter: blur(60px);
  pointer-events: none;
  z-index: 0;
}

.si-grid-bg {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(16,185,129,0.05) 1px, transparent 1px);
  background-size: 30px 30px;
  pointer-events: none;
  z-index: 0;
}

.si-wrap {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 440px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  opacity: 0;
  transform: translateY(20px);
}

/* ── Header ── */
.si-header {
  text-align: center;
  margin-bottom: 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.si-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: rgba(16,185,129,0.09);
  border: 1px solid rgba(16,185,129,0.18);
  display: flex;
  align-items: center;
  justify-content: center;
}

.si-h1 {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--text-h);
  line-height: 1.2;
  margin: 0;
}

.si-sub {
  font-size: 0.93rem;
  color: var(--text-body);
  line-height: 1.6;
  margin: 0;
  max-width: 360px;
}

/* ── Card ── */
.si-card {
  width: 100%;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px 32px 28px;
  box-shadow: 0 4px 28px rgba(0,0,0,0.07), 0 1px 4px rgba(0,0,0,0.04);
}

/* ── Error banner ── */
.si-error-banner {
  display: none;
  align-items: flex-start;
  gap: 10px;
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: 10px;
  padding: 12px 14px;
  margin-bottom: 20px;
  font-size: 13px;
  color: #b91c1c;
  line-height: 1.45;
}

.si-error-banner svg { flex-shrink: 0; margin-top: 1px; }

.si-error-banner--visible { display: flex; }

/* ── Form ── */
.si-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

/* ── Field ── */
.si-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.si-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.si-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-h);
}

.si-forgot {
  font-size: 12px;
  font-weight: 500;
  color: #10b981;
  text-decoration: none;
  transition: color 0.15s;
}
.si-forgot:hover { color: #059669; }

/* ── Input ── */
.si-input-wrap { position: relative; }

.si-input {
  width: 100%;
  height: 44px;
  padding: 0 14px;
  font-size: 14px;
  font-family: 'Inter', sans-serif;
  color: var(--text-h);
  background: var(--bg-light);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
  box-sizing: border-box;
}

.si-input-wrap .si-input { padding-right: 42px; }

.si-input::placeholder { color: #9ca3af; }

.si-input:focus {
  border-color: #10b981;
  box-shadow: 0 0 0 3px rgba(16,185,129,0.1);
  background: #ffffff;
}

.si-field--error .si-input {
  border-color: #f87171;
  box-shadow: 0 0 0 3px rgba(248,113,113,0.1);
}

/* ── Eye toggle ── */
.si-eye {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  display: flex;
  align-items: center;
  color: #9ca3af;
  transition: color 0.15s;
}
.si-eye:hover { color: #6b7280; }

/* ── Field error text ── */
.si-field-error {
  font-size: 12px;
  color: #dc2626;
  min-height: 16px;
  line-height: 1.3;
}

/* ── Primary button ── */
.si-btn-primary {
  position: relative;
  width: 100%;
  height: 46px;
  font-size: 14px;
  font-weight: 700;
  font-family: 'Inter', sans-serif;
  color: #ffffff;
  background: #10b981;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.18s, transform 0.15s, box-shadow 0.18s;
  box-shadow: 0 2px 10px rgba(16,185,129,0.28);
  margin-top: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.si-btn-primary:hover:not(:disabled) {
  background: #059669;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(16,185,129,0.32);
}
.si-btn-primary:active:not(:disabled) { transform: translateY(0); }
.si-btn-primary:disabled { opacity: 0.7; cursor: not-allowed; }

.si-btn-label { transition: opacity 0.15s; }

/* ── Spinner ── */
.si-spinner {
  display: none;
  position: absolute;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.35);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: si-spin 0.7s linear infinite;
}
@keyframes si-spin { to { transform: rotate(360deg); } }

/* ── Divider ── */
.si-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 24px 0 18px;
  color: var(--text-light);
  font-size: 12px;
  font-weight: 500;
}
.si-divider::before,
.si-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ── Alt action buttons ── */
.si-alt-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.si-btn-alt {
  width: 100%;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  font-size: 13px;
  font-weight: 600;
  font-family: 'Inter', sans-serif;
  color: var(--text-h);
  background: #ffffff;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  transition: border-color 0.18s, background 0.18s, transform 0.15s;
}
.si-btn-alt:hover {
  border-color: #10b981;
  background: rgba(16,185,129,0.03);
  transform: translateY(-1px);
}
.si-btn-alt:active { transform: translateY(0); }

.si-btn-alt--loading { opacity: 0.6; pointer-events: none; }

/* ── Alt error ── */
.si-alt-error {
  display: none;
  font-size: 12px;
  color: #b45309;
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: 8px;
  padding: 10px 12px;
  margin-top: 12px;
  line-height: 1.45;
}
.si-alt-error--visible { display: block; }

/* ── Trust line ── */
.si-trust {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  font-size: 11.5px;
  color: var(--text-light);
  text-align: center;
  line-height: 1.5;
}

/* ── Help link ── */
.si-help {
  margin-top: 20px;
  font-size: 13px;
  color: var(--text-light);
  text-align: center;
}
.si-help a {
  color: #10b981;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.15s;
}
.si-help a:hover { color: #059669; }

/* ── Responsive ── */
@media (max-width: 480px) {
  .si-main { padding: 100px 16px 60px; }
  .si-card { padding: 24px 20px 22px; }
  .si-h1 { font-size: 1.5rem; }
}