/* ============================================================
   Koekkoek Workspace — Login (v6)
   Two phases: 3s splash → login card.
   Logo image has ~35% transparent padding on all sides; the frame
   wrappers (splash-logo-wrap, card-logo-wrap) crop to visible content.
   ============================================================ */

:root {
  --c-bg-1: #334155;
  --c-bg-2: #0f172a;
  --c-bg-deep: #020617;
  --c-surface: rgba(15, 23, 42, 0.72);
  --c-border: rgba(148, 163, 184, 0.16);
  --c-border-strong: rgba(148, 163, 184, 0.28);
  --c-text: #e6edf5;
  --c-text-dim: #94a3b8;
  --c-text-faint: #64748b;
  --c-accent: #f59e0b;
  --c-accent-hover: #fbbf24;
  --c-accent-soft: rgba(245, 158, 11, 0.14);
  --c-danger: #f43f5e;
  --radius-lg: 18px;
  --radius-md: 12px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-expo: cubic-bezier(0.19, 1, 0.22, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0; height: 100%;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--c-text);
  background: var(--c-bg-deep);
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}

/* ============================================================
   Background
   ============================================================ */
.bg-gradient { position: fixed; inset: 0; z-index: 0; background: linear-gradient(90deg, var(--c-bg-1), var(--c-bg-2)); }
.bg-orbs     { position: fixed; inset: 0; z-index: 1; overflow: hidden; pointer-events: none; }
.orb         { position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.45; will-change: transform; }
.orb-1       { width: 520px; height: 520px; background: radial-gradient(circle, rgba(245,158,11,.35), transparent 70%); top: -180px; left: -120px; animation: od1 22s var(--ease-in-out) infinite alternate; }
.orb-2       { width: 640px; height: 640px; background: radial-gradient(circle, rgba(59,130,246,.25), transparent 70%); bottom: -260px; right: -160px; animation: od2 28s var(--ease-in-out) infinite alternate; }
.orb-3       { width: 380px; height: 380px; background: radial-gradient(circle, rgba(245,165,84,.22), transparent 70%); top: 40%; left: 55%; animation: od3 18s var(--ease-in-out) infinite alternate; }
@keyframes od1 { to { transform: translate(120px,80px) scale(1.1); } }
@keyframes od2 { to { transform: translate(-140px,-90px) scale(1.08); } }
@keyframes od3 { from { transform: translate(-50%,-50%) scale(1); } to { transform: translate(-40%,-55%) scale(1.15); } }
.bg-grid     { position: fixed; inset: 0; z-index: 2; pointer-events: none; background-image: linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px); background-size: 52px 52px; mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%); -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%); }
.bg-vignette { position: fixed; inset: 0; z-index: 3; pointer-events: none; background: radial-gradient(ellipse at center, transparent 50%, rgba(2,6,23,.55) 100%); }

/* ============================================================
   SPLASH SCREEN — 3 seconds (logo + loading bar)
   The PNG has ~35% transparent padding. The frame crops to visible content.
   ============================================================ */
.splash {
  position: fixed; inset: 0;
  z-index: 20;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0;
  transition: opacity 500ms var(--ease-out);
}
[data-stage="login"] .splash {
  opacity: 0;
  pointer-events: none;
}

/* Logo images are pre-cropped (1024×195 / 512×105) — no frame hack needed */
.splash-logo-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
}
.splash-logo {
  width: 500px;
  max-width: 85vw;
  height: auto;
  filter: drop-shadow(0 6px 20px rgba(245, 158, 11, 0.45));
  animation: splashPulse 2.5s var(--ease-in-out) infinite;
}
@keyframes splashPulse {
  0%, 100% { filter: drop-shadow(0 6px 20px rgba(245, 158, 11, 0.45)); }
  50%      { filter: drop-shadow(0 12px 36px rgba(245, 158, 11, 0.6)); }
}

/* Loading bar */
.splash-bar {
  width: 220px;
  height: 3px;
  margin-top: 24px;
  background: rgba(148, 163, 184, 0.12);
  border-radius: 3px;
  overflow: hidden;
  opacity: 0;
  animation: barFadeIn 600ms 300ms var(--ease-out) forwards;
}
@keyframes barFadeIn { to { opacity: 1; } }

.splash-bar-fill {
  display: block;
  width: 40%;
  height: 100%;
  background: linear-gradient(90deg, transparent, var(--c-accent), transparent);
  border-radius: 3px;
  animation: barSweep 1.4s var(--ease-in-out) infinite;
}
@keyframes barSweep {
  0%   { transform: translateX(-120%); }
  100% { transform: translateX(380%); }
}

/* ============================================================
   AUTH WRAP + CARD-TOP LOGO
   Same frame approach for the card logo so transparent padding
   is cropped. Logo frame sits above the card with negative bottom
   margin to overlap into the card.
   ============================================================ */
.auth-wrap {
  position: fixed; inset: 0;
  z-index: 15;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 500ms 200ms var(--ease-out);
}
[data-stage="login"] .auth-wrap {
  opacity: 1;
  pointer-events: auto;
}

/* Card logo — pre-cropped image, no frame needed */
.card-logo-wrap {
  text-align: center;
  margin: 0 auto 20px;
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 420ms 300ms var(--ease-out), transform 520ms 300ms var(--ease-expo);
}
[data-stage="login"] .card-logo-wrap {
  opacity: 1;
  transform: scale(1);
}

.card-logo {
  width: 320px;
  max-width: 90%;
  height: auto;
  filter: drop-shadow(0 6px 20px rgba(245, 158, 11, 0.45));
}

/* Auth card */
.auth-card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 440px;
  background: var(--c-surface);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 32px 32px 30px;
  box-shadow:
    0 24px 60px -20px rgba(0,0,0,.6),
    0 0 0 1px rgba(255,255,255,.02) inset,
    0 1px 0 rgba(255,255,255,.04) inset;
  transform: translateY(24px) scale(0.98);
  opacity: 0;
  transition: transform 520ms 350ms var(--ease-expo), opacity 420ms 350ms var(--ease-out);
}
[data-stage="login"] .auth-card {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.auth-head { text-align: center; margin-bottom: 24px; }
.auth-head h1 { margin: 0 0 6px; font-size: 22px; font-weight: 600; letter-spacing: -0.01em; }
.auth-head p { margin: 0; font-size: 13px; color: var(--c-text-dim); }

.auth-form { display: flex; flex-direction: column; gap: 16px; }

.field {
  opacity: 0; transform: translateY(8px);
  transition: opacity 380ms var(--ease-out), transform 460ms var(--ease-expo);
}
[data-stage="login"] .field:nth-of-type(1) { transition-delay: 600ms; opacity: 1; transform: none; }
[data-stage="login"] .field:nth-of-type(2) { transition-delay: 680ms; opacity: 1; transform: none; }
[data-stage="login"] .checkbox             { transition-delay: 760ms; }
[data-stage="login"] .btn-primary          { transition-delay: 840ms; }

.field label { display: block; font-size: 12px; color: var(--c-text-dim); margin-bottom: 8px; letter-spacing: 0.02em; }
.field input {
  width: 100%; padding: 12px 14px;
  font-family: inherit; font-size: 14px; color: var(--c-text);
  background: rgba(2,6,23,.55);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color 180ms, box-shadow 180ms, background 180ms;
}
.field input::placeholder { color: var(--c-text-faint); }
.field input:hover        { border-color: var(--c-border-strong); }
.field input:focus        { border-color: var(--c-accent); box-shadow: 0 0 0 3px var(--c-accent-soft); background: rgba(2,6,23,.8); }

.checkbox {
  display: flex; align-items: center; gap: 10px;
  cursor: pointer; user-select: none; font-size: 13px; color: var(--c-text-dim);
  opacity: 0; transform: translateY(8px);
  transition: opacity 380ms var(--ease-out), transform 460ms var(--ease-expo);
}
[data-stage="login"] .checkbox { opacity: 1; transform: none; }
.checkbox input { position: absolute; opacity: 0; pointer-events: none; }
.checkbox .checkmark {
  width: 16px; height: 16px; border-radius: 4px;
  border: 1px solid var(--c-border-strong); background: rgba(2,6,23,.55);
  display: grid; place-items: center; flex-shrink: 0;
  transition: background 180ms, border-color 180ms;
}
.checkbox .checkmark::after {
  content: ''; width: 8px; height: 4px;
  border-left: 2px solid #fff; border-bottom: 2px solid #fff;
  transform: rotate(-45deg) translate(1px,-1px) scale(0);
  transition: transform 180ms var(--ease-out);
}
.checkbox input:checked ~ .checkmark         { background: var(--c-accent); border-color: var(--c-accent); }
.checkbox input:checked ~ .checkmark::after  { transform: rotate(-45deg) translate(1px,-1px) scale(1); }
.checkbox:hover .checkmark                   { border-color: var(--c-accent); }

.btn-primary {
  position: relative; margin-top: 8px; width: 100%; padding: 13px 16px;
  font-family: inherit; font-weight: 600; font-size: 14px; letter-spacing: 0.02em;
  color: #0f172a; background: var(--c-accent); border: 0; border-radius: var(--radius-md);
  cursor: pointer; overflow: hidden;
  opacity: 0; transform: translateY(8px);
  transition: opacity 380ms var(--ease-out), transform 460ms var(--ease-expo), background 180ms, box-shadow 180ms;
}
[data-stage="login"] .btn-primary { opacity: 1; transform: none; }
.btn-primary::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,.45) 50%, transparent 100%);
  transform: translateX(-100%); transition: transform 0.6s var(--ease-out); pointer-events: none;
}
.btn-primary:hover:not([disabled])        { background: var(--c-accent-hover); box-shadow: 0 10px 30px -12px rgba(245,158,11,.55); }
.btn-primary:hover:not([disabled])::after { transform: translateX(100%); }
.btn-primary:active:not([disabled])       { transform: translateY(1px); }
.btn-primary[disabled]                    { opacity: 0.7; cursor: not-allowed; }

.btn-spinner {
  display: none; width: 14px; height: 14px;
  border: 2px solid rgba(15,23,42,.3); border-top-color: #0f172a;
  border-radius: 50%; animation: spin 620ms linear infinite;
  margin-left: 10px; vertical-align: middle;
}
.btn-primary.is-loading .btn-spinner      { display: inline-block; }
.btn-primary.is-loading .btn-label::after { content: '…'; }
@keyframes spin { to { transform: rotate(360deg); } }

.auth-error { min-height: 18px; margin: 0; font-size: 13px; text-align: center; color: var(--c-danger); opacity: 0; transition: opacity 200ms; }
.auth-error.visible { opacity: 1; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 480px) {
  .splash-logo { width: 380px; }
  .card-logo   { width: 280px; }
  .auth-card   { padding: 24px 22px 24px; }
}
@media (max-height: 700px) {
  .splash-logo { width: 360px; }
  .card-logo   { width: 260px; }
  .auth-card   { padding: 24px 28px 24px; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .splash { display: none; }
  .auth-wrap { opacity: 1 !important; pointer-events: auto !important; }
  .card-logo-wrap, .auth-card { opacity: 1 !important; transform: none !important; }
  [data-stage="login"] .field,
  [data-stage="login"] .checkbox,
  [data-stage="login"] .btn-primary { opacity: 1 !important; transform: none !important; }
}