/* ===================================================================== *
 * Kulturagent — warm "editorial android" theme.
 * Palette pulled from the android portrait: cream skin, amber/bronze
 * circuitry, tortoiseshell, charcoal blazer.
 * ===================================================================== */
:root {
  --cream: #f4efe5;
  --cream-hi: #efe7d6;
  --panel: #fffdf8;
  --ink: #2f2b25;
  --ink-soft: #6f6656;
  --amber: #b07d4f;
  --amber-dark: #8a5d34;
  --amber-soft: #ecdcc6;
  --amber-glow: rgba(176, 125, 79, 0.35);
  --line: #ece1cf;
}

/* --- surfaces --------------------------------------------------------- */
body {
  min-height: 100vh;
  background:
    radial-gradient(1100px 620px at 82% -8%, var(--cream-hi), transparent 60%),
    radial-gradient(900px 600px at -5% 108%, #efe6d4, transparent 55%),
    var(--cream);
  background-attachment: fixed;
  color: var(--ink);
}

.navbar.bg-dark {
  background: linear-gradient(90deg, #302c26, #3c352c) !important;
  box-shadow: 0 2px 18px rgba(47, 43, 37, 0.18);
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 1rem;
  box-shadow: 0 12px 34px rgba(90, 70, 45, 0.09);
}
.card-header,
.card-footer {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
}
.card-header { font-weight: 600; }

/* --- controls: amber instead of blue --------------------------------- */
.btn-primary {
  --bs-btn-bg: var(--amber);
  --bs-btn-border-color: var(--amber);
  --bs-btn-hover-bg: var(--amber-dark);
  --bs-btn-hover-border-color: var(--amber-dark);
  --bs-btn-active-bg: var(--amber-dark);
  --bs-btn-active-border-color: var(--amber-dark);
  --bs-btn-disabled-bg: var(--amber);
  --bs-btn-disabled-border-color: var(--amber);
}
.btn-outline-secondary {
  --bs-btn-color: var(--amber-dark);
  --bs-btn-border-color: var(--amber-soft);
  --bs-btn-hover-bg: var(--amber);
  --bs-btn-hover-border-color: var(--amber);
  --bs-btn-hover-color: #fff;
}
.btn-link {
  --bs-btn-color: var(--amber-dark);
  --bs-btn-hover-color: var(--amber);
}
.form-control:focus {
  border-color: var(--amber);
  box-shadow: 0 0 0 0.2rem var(--amber-glow);
}
.nav-pills .nav-link {
  color: var(--ink-soft);
}
.nav-pills .nav-link.active {
  background: var(--amber);
}

/* --- chat ------------------------------------------------------------- */
.chat-window {
  height: 60vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.msg {
  max-width: 80%;
  padding: 0.5rem 0.75rem;
  border-radius: 0.75rem;
  white-space: pre-wrap;
  word-wrap: break-word;
}
.msg-user {
  align-self: flex-end;
  background: var(--amber);
  color: #fff;
  border-bottom-right-radius: 0.15rem;
}
.msg-assistant {
  align-self: flex-start;
  background: #efe7d7;
  color: var(--ink);
  border-bottom-left-radius: 0.15rem;
}
.msg-system {
  align-self: center;
  font-size: 0.85rem;
  color: var(--ink-soft);
  font-style: italic;
}

/* ===================================================================== *
 * The android — the agent's face, sprinkled around with a little life.
 * ===================================================================== */

/* small round avatar (navbar + card headers) — framed on the face */
.android-avatar {
  border-radius: 50%;
  object-fit: cover;
  object-position: 50% 20%;
  border: 2px solid var(--amber-soft);
  box-shadow: 0 2px 8px rgba(90, 70, 45, 0.25);
}
.navbar .android-avatar {
  width: 2.1rem;
  height: 2.1rem;
  transition: transform 0.3s ease;
}
.navbar .android-avatar:hover {
  transform: rotate(-8deg) scale(1.08);
}
.header-avatar {
  width: 2rem;
  height: 2rem;
}

/* ===================================================================== *
 * Login stage — warm but a little uncanny. Same palette; the composition
 * is deliberately asymmetric so the android sets the tone for the whole
 * page instead of being one tasteful ornament.
 * ===================================================================== */
.auth-stage {
  position: relative;
  min-height: calc(100vh - 3.5rem);
  overflow: hidden;
}

/* faint film grain — tactile, not darker */
.stage-grain {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.45;
  mix-blend-mode: soft-light;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* oversized android, cropped by the viewport, leaning in from the corner */
.stage-android-wrap {
  position: absolute;
  z-index: 1;
  left: -5vw;
  bottom: -9vh;
  width: min(48vw, 620px);
  transform: rotate(-3deg);
  filter: drop-shadow(0 30px 55px rgba(90, 70, 45, 0.35));
  animation: floaty 9s ease-in-out infinite;
}
.stage-android {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 1.5rem;
}
/* the exposed "brain" quietly pulses — the machine is thinking */
.brain-pulse {
  position: absolute;
  top: 19%;
  right: 20%;
  width: 34%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(closest-side, var(--amber-glow), transparent 70%);
  filter: blur(7px);
  mix-blend-mode: screen;
  animation: brainPulse 3.4s ease-in-out infinite;
}
@keyframes brainPulse {
  0%, 100% { opacity: 0.2; transform: scale(0.9); }
  50%      { opacity: 0.7; transform: scale(1.07); }
}

.stage-content {
  position: relative;
  z-index: 2;
  min-height: calc(100vh - 3.5rem);
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  grid-template-rows: auto 1fr auto;
  gap: 1rem 2.5rem;
  padding: clamp(1.25rem, 3.5vw, 3.5rem);
}

.stage-head {
  grid-column: 1;
  grid-row: 1;
  align-self: start;
  max-width: 34rem;
}
.stage-kicker {
  font-size: 0.78rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--amber-dark);
}
.wordmark {
  margin: 0.08em 0 0.14em;
  font-weight: 800;
  line-height: 0.9;
  letter-spacing: -0.02em;
  font-size: clamp(2.6rem, 7.5vw, 5.4rem);
  color: var(--ink);
}
.wordmark::after { content: "."; color: var(--amber); } /* an odd little full stop */
.stage-tagline {
  max-width: 24rem;
  font-size: clamp(1.05rem, 2.2vw, 1.5rem);
  font-style: italic;
  color: var(--ink-soft);
  transform: rotate(-0.6deg);
}

/* the taste-before-the-gate demo, sitting in the (previously dead) lower area */
.demo {
  grid-column: 1;
  grid-row: 3;
  align-self: end;
  max-width: 30rem;
}
.demo-bubble {
  position: relative;
  min-height: 4.6em;
  padding: 0.9rem 1.05rem;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 1.1rem 1.1rem 1.1rem 0.2rem;
  box-shadow: 0 16px 36px rgba(90, 70, 45, 0.18);
  color: var(--ink);
  transform: rotate(-1.2deg);
}
.demo-bubble::before {
  content: "Kulturagenten";
  position: absolute;
  top: -0.72rem;
  left: 0.9rem;
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #fff;
  background: var(--amber);
  padding: 0.1rem 0.55rem;
  border-radius: 1rem;
}
.caret {
  display: inline-block;
  width: 0.5ch;
  height: 1.05em;
  margin-left: 1px;
  vertical-align: -2px;
  background: var(--amber);
  animation: blink 1.05s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.demo-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.1rem;
}
.chip {
  border: 1px solid var(--amber-soft);
  background: rgba(255, 253, 248, 0.72);
  color: var(--amber-dark);
  border-radius: 2rem;
  padding: 0.4rem 0.9rem;
  font-size: 0.85rem;
  cursor: pointer;
  backdrop-filter: blur(2px);
  transition: transform 0.18s ease, background 0.18s ease, box-shadow 0.18s ease,
    color 0.18s ease;
}
.chip:nth-child(1) { transform: rotate(-2deg); }
.chip:nth-child(2) { transform: rotate(1.6deg); }
.chip:nth-child(3) { transform: rotate(-1deg); }
.chip:hover,
.chip.active {
  background: var(--amber);
  color: #fff;
  transform: rotate(0) translateY(-2px);
  box-shadow: 0 8px 18px var(--amber-glow);
}

/* the gate — offset to the right, tilted, straightens when you engage it */
.auth-card-wrap {
  grid-column: 2;
  grid-row: 1 / span 3;
  align-self: center;
  justify-self: end;
  width: min(100%, 25rem);
}
.auth-card {
  transform: rotate(1.8deg);
  transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.auth-card:hover,
.auth-card:focus-within { transform: rotate(0); }
.auth-lead { color: var(--ink-soft); }

/* stack on smaller screens; android becomes a faded backdrop */
@media (max-width: 991.98px) {
  .stage-content {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
    gap: 1.5rem;
    padding: 1.5rem 1.25rem 2.25rem;
  }
  .stage-head { grid-row: 1; }
  .auth-card-wrap {
    grid-column: 1;
    grid-row: 2;
    justify-self: stretch;
    width: 100%;
  }
  .auth-card { transform: none; }
  .demo {
    grid-column: 1;
    grid-row: 3;
    align-self: auto;
    max-width: none;
  }
  .stage-android-wrap {
    width: 72vw;
    left: auto;
    right: -20vw;
    bottom: -5vh;
    opacity: 0.4;
  }
}

@media (prefers-reduced-motion: reduce) {
  .stage-android-wrap,
  .brain-pulse,
  .caret { animation: none; }
}

/* playful android peeking into the main page from the corner */
.android-peek {
  position: fixed;
  left: -14px;
  bottom: -8px;
  width: 148px;
  height: auto;
  border-radius: 1.1rem;
  opacity: 0.95;
  filter: drop-shadow(0 14px 26px rgba(90, 70, 45, 0.4));
  pointer-events: none;
  z-index: 5;
  animation: bob 5s ease-in-out infinite;
  transform-origin: bottom center;
}

@keyframes floaty {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50%      { transform: translateY(-12px) rotate(1.2deg); }
}
@keyframes bob {
  0%, 100% { transform: translateY(0) rotate(-2.5deg); }
  50%      { transform: translateY(-9px) rotate(2.5deg); }
}
@media (prefers-reduced-motion: reduce) {
  .android-hero,
  .android-card-avatar,
  .android-peek { animation: none; }
}