/* ================================================
   LOGIN — Clean Dark UI
   ================================================ */

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

:root {
  --bg:      #06060e;
  --surface: #0d0d1a;
  --border:  rgba(255,255,255,0.07);
  --border-focus: rgba(0,229,255,0.45);
  --cyan:    #00e5ff;
  --violet:  #a855f7;
  --rose:    #f43f5e;
  --text1:   #e8e8f4;
  --text2:   #94a3b8;
  --text3:   #475569;
  --radius:  14px;
  --radius-sm: 9px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text1);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* ─── Background ─── */
.bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,229,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,229,255,0.025) 1px, transparent 1px);
  background-size: 44px 44px;
  pointer-events: none;
}

.bg-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  opacity: 0;
  animation: glow-fade-in 1.2s ease forwards;
}
.bg-glow-1 {
  width: 500px; height: 500px;
  background: rgba(0,229,255,0.06);
  top: -180px; left: -120px;
  animation-delay: 0.2s;
}
.bg-glow-2 {
  width: 420px; height: 420px;
  background: rgba(168,85,247,0.07);
  bottom: -150px; right: -100px;
  animation-delay: 0.5s;
}
@keyframes glow-fade-in {
  to { opacity: 1; }
}

/* ─── Layout ─── */
.login-wrap {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  width: 100%;
  max-width: 400px;
  padding: 24px 20px;
  animation: slide-up 0.5s cubic-bezier(0.16,1,0.3,1) both;
}
@keyframes slide-up {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── Brand ─── */
.brand-lockup {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 4px;
}
.brand-icon {
  width: 40px; height: 40px;
  background: rgba(0,229,255,0.08);
  border: 1px solid rgba(0,229,255,0.2);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
}
.brand-name {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.08em;
  background: linear-gradient(135deg, #e8e8f4 30%, #00e5ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ─── Card ─── */
.login-card {
  width: 100%;
  background: rgba(13,13,26,0.85);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow:
    0 0 0 1px rgba(0,0,0,0.4),
    0 24px 48px rgba(0,0,0,0.5),
    0 0 80px rgba(0,229,255,0.03);
}

.card-header {
  margin-bottom: 28px;
}
.card-header h1 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text1);
  margin-bottom: 4px;
}
.card-header p {
  font-size: 13px;
  color: var(--text3);
}

/* ─── Form fields ─── */
.field-group {
  margin-bottom: 18px;
}
label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text2);
  margin-bottom: 7px;
  letter-spacing: 0.02em;
}

input[type="email"],
input[type="password"],
input[type="text"] {
  width: 100%;
  padding: 11px 14px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text1);
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}
input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(0,229,255,0.08);
  background: rgba(255,255,255,0.05);
}
input::placeholder { color: var(--text3); }

/* Password wrapper */
.pass-wrap { position: relative; }
.pass-wrap input { padding-right: 44px; }
.pass-toggle {
  position: absolute;
  right: 12px; top: 50%;
  transform: translateY(-50%);
  background: none; border: none;
  cursor: pointer; color: var(--text3);
  padding: 4px; line-height: 0;
  transition: color 0.2s;
}
.pass-toggle:hover { color: var(--text1); }

/* ─── Error box ─── */
.error-box {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: rgba(244,63,94,0.1);
  border: 1px solid rgba(244,63,94,0.25);
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  font-size: 13px;
  color: #fb7185;
  animation: shake 0.35s ease;
}
.error-box svg { flex-shrink: 0; color: #f43f5e; }
@keyframes shake {
  0%,100% { transform: translateX(0); }
  20%      { transform: translateX(-5px); }
  60%      { transform: translateX(5px); }
}

/* ─── Submit button ─── */
.submit-btn {
  width: 100%;
  padding: 13px;
  margin-top: 4px;
  background: linear-gradient(135deg, rgba(0,229,255,0.85), rgba(168,85,247,0.85));
  border: none;
  border-radius: var(--radius-sm);
  color: #fff;
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  letter-spacing: 0.03em;
  transition: opacity 0.2s, transform 0.15s, box-shadow 0.2s;
  box-shadow: 0 4px 18px rgba(0,229,255,0.18);
}
.submit-btn:hover:not(:disabled) {
  opacity: 0.92;
  transform: translateY(-1px);
  box-shadow: 0 8px 28px rgba(0,229,255,0.25);
}
.submit-btn:active:not(:disabled) { transform: translateY(0); }
.submit-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* Spinner */
.spin-icon {
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── Footer ─── */
.card-footer {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}
.sec-tag {
  font-size: 11px;
  color: var(--text3);
}
.sep { color: var(--text3); font-size: 10px; }

/* ─── Bottom note ─── */
.bottom-note {
  font-size: 11px;
  color: var(--text3);
  text-align: center;
  opacity: 0.7;
  max-width: 320px;
}

/* ─── Responsive ─── */
@media (max-width: 460px) {
  .login-card { padding: 24px 20px; }
  .card-header h1 { font-size: 18px; }
}