/* login-overlay.css — Login card overlay for arktechnwa.com
   Theme variables + card styles + overlay modal */

@import url('https://fonts.googleapis.com/css2?family=Geist:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── Theme tokens ── */
:root {
  --ark-bg-primary:       #ffffff;
  --ark-bg-secondary:     #fafafa;
  --ark-bg-tertiary:      #f5f5f5;
  --ark-text-primary:     #111111;
  --ark-text-secondary:   #555555;
  --ark-text-tertiary:    #888888;
  --ark-border-primary:   #d1d5db;
  --ark-border-secondary: #e5e7eb;
  --ark-border-tertiary:  #f0f0f0;
  --ark-text-danger:      #dc2626;
  --ark-bg-danger:        rgba(220,38,38,0.06);
  --ark-border-danger:    rgba(220,38,38,0.2);
  --ark-text-warning:     #d97706;
  --ark-bg-warning:       rgba(217,119,6,0.06);
  --ark-border-warning:   rgba(217,119,6,0.2);
}

@media (prefers-color-scheme: dark) {
  :root {
    --ark-bg-primary:       #0a0a0a;
    --ark-bg-secondary:     #141414;
    --ark-bg-tertiary:      #1a1a1a;
    --ark-text-primary:     #f0f0f0;
    --ark-text-secondary:   #a0a0a0;
    --ark-text-tertiary:    #666666;
    --ark-border-primary:   #333333;
    --ark-border-secondary: #2a2a2a;
    --ark-border-tertiary:  #1f1f1f;
    --ark-text-danger:      #f87171;
    --ark-bg-danger:        rgba(248,113,113,0.1);
    --ark-border-danger:    rgba(248,113,113,0.2);
    --ark-text-warning:     #fbbf24;
    --ark-bg-warning:       rgba(251,191,36,0.1);
    --ark-border-warning:   rgba(251,191,36,0.2);
  }
}

/* ── Overlay backdrop ── */
.login-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

.login-overlay.active {
  opacity: 1;
  visibility: visible;
}

.login-overlay.active .card-perspective {
  transform: scale(1) translateY(0);
  opacity: 1;
}

/* ── Card container ── */
.card-perspective {
  width: 320px;
  height: 560px;
  perspective: 900px;
  transform: scale(0.95) translateY(12px);
  opacity: 0;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
}

.card-inner {
  width: 100%; height: 100%; position: relative;
  transform-style: preserve-3d;
  transition: transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}
.card-inner.flip-left  { transform: rotateY(-180deg); }
.card-inner.flip-up    { transform: rotateX(180deg); }

/* ── Card faces ── */
.card-face {
  position: absolute; inset: 0;
  backface-visibility: hidden; -webkit-backface-visibility: hidden;
  border-radius: 20px;
  border: 0.5px solid var(--ark-border-secondary);
  background: var(--ark-bg-primary);
  overflow: hidden; display: flex; flex-direction: column;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}
.face-error    { transform: rotateY(-180deg); visibility: hidden; }
.face-unauthed { transform: rotateX(180deg);  visibility: hidden; }
.card-inner.show-error    .face-error    { visibility: visible; }
.card-inner.show-unauthed .face-unauthed { visibility: visible; }

/* ── Card layout ── */
.card-top {
  height: 280px; flex-shrink: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 0 36px;
  border-bottom: 0.5px solid var(--ark-border-tertiary);
  position: relative;
}
.card-mark {
  position: absolute; top: 24px; left: 0; right: 0; text-align: center;
  font-size: 11px; font-weight: 500; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ark-text-tertiary); font-family: 'JetBrains Mono', monospace;
}
.card-logo {
  font-size: 42px; font-weight: 400; letter-spacing: -0.04em;
  color: var(--ark-text-primary); text-transform: lowercase; margin-bottom: 6px;
  font-family: 'Geist', system-ui, sans-serif;
}
.card-tagline {
  font-size: 13px; color: var(--ark-text-tertiary); text-align: center; line-height: 1.5;
  font-family: 'Geist', system-ui, sans-serif;
}
.card-chip {
  position: absolute; bottom: 20px; right: 28px;
  font-family: 'JetBrains Mono', monospace; font-size: 10px;
  letter-spacing: 0.12em; color: var(--ark-text-tertiary); opacity: 0.35;
}

.card-bottom {
  height: 280px; flex-shrink: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 0 36px;
}

/* ── Google button ── */
.google-btn {
  width: 100%; display: flex; align-items: center; justify-content: center; gap: 10px;
  padding: 11px 16px; border-radius: 10px;
  border: 0.5px solid var(--ark-border-secondary);
  background: var(--ark-bg-primary);
  cursor: pointer; font-family: 'Geist', system-ui, sans-serif;
  font-size: 14px; font-weight: 500; color: var(--ark-text-primary);
  transition: background 0.12s; margin-bottom: 16px;
}
.google-btn:hover { background: var(--ark-bg-secondary); }
.google-btn:active { transform: scale(0.985); }
.google-icon { width: 18px; height: 18px; flex-shrink: 0; }

/* ── Stay signed in ── */
.stay-row { width: 100%; display: flex; align-items: center; gap: 9px; margin-bottom: 20px; }
.stay-checkbox {
  appearance: none; -webkit-appearance: none;
  width: 16px; height: 16px; flex-shrink: 0; border-radius: 4px;
  border: 1.5px solid var(--ark-border-primary);
  background: var(--ark-bg-primary);
  cursor: pointer; position: relative; transition: background 0.12s;
}
.stay-checkbox:checked { background: #0070f3; border-color: #0070f3; }
.stay-checkbox:checked::after {
  content: ''; position: absolute; top: 2px; left: 5px;
  width: 4px; height: 7px;
  border: 1.5px solid #fff; border-top: none; border-left: none;
  transform: rotate(45deg);
}
.stay-label {
  font-size: 13px; color: var(--ark-text-secondary); cursor: pointer; flex: 1;
  font-family: 'Geist', system-ui, sans-serif;
}
.footer-text {
  font-size: 11px; color: var(--ark-text-tertiary); text-align: center; line-height: 1.6;
  font-family: 'Geist', system-ui, sans-serif;
}
.footer-text a { color: var(--ark-text-secondary); text-decoration: none; }

/* ── Error face ── */
.err-icon-wrap {
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--ark-bg-danger);
  display: flex; align-items: center; justify-content: center; margin-bottom: 14px;
  opacity: 0;
}
.err-icon-wrap.animate { animation: ark-fade-up 0.3s ease-out 0.1s forwards; }
.err-title {
  font-size: 16px; font-weight: 500; color: var(--ark-text-primary); margin-bottom: 8px;
  text-align: center; opacity: 0; font-family: 'Geist', system-ui, sans-serif;
}
.err-title.animate { animation: ark-fade-up 0.3s ease-out 0.2s forwards; }
.err-reason {
  font-family: 'JetBrains Mono', monospace; font-size: 11px; letter-spacing: 0.06em;
  color: var(--ark-text-danger); background: var(--ark-bg-danger);
  border: 0.5px solid var(--ark-border-danger); border-radius: 6px;
  padding: 4px 10px; margin-bottom: 12px; opacity: 0;
}
.err-reason.animate { animation: ark-fade-up 0.3s ease-out 0.3s forwards; }
.err-body {
  font-size: 12px; color: var(--ark-text-secondary); text-align: center; line-height: 1.6;
  margin-bottom: 18px; opacity: 0; font-family: 'Geist', system-ui, sans-serif;
}
.err-body.animate { animation: ark-fade-up 0.3s ease-out 0.4s forwards; }

/* ── Unauthed face ── */
.unauthed-icon-wrap {
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--ark-bg-warning);
  display: flex; align-items: center; justify-content: center; margin-bottom: 14px;
  opacity: 0;
}
.unauthed-icon-wrap.animate { animation: ark-fade-up 0.3s ease-out 0.1s forwards; }

/* ── Shared action button ── */
.shared-action-btn {
  width: 100%; padding: 10px; border-radius: 10px;
  border: 0.5px solid var(--ark-border-secondary);
  background: var(--ark-bg-primary);
  cursor: pointer; font-family: 'Geist', system-ui, sans-serif;
  font-size: 14px; font-weight: 500; color: var(--ark-text-primary);
  display: flex; align-items: center; justify-content: center; gap: 8px;
  transition: background 0.12s; margin-top: 4px;
}
.shared-action-btn:hover { background: var(--ark-bg-secondary); }
.shared-action-btn:active { transform: scale(0.985); }
.action-btn { opacity: 0; }
.action-btn.animate { animation: ark-fade-up 0.4s ease-out 0.5s forwards; }

@keyframes ark-fade-up {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}