/* HippieHuisChatGPT — avond in de huiskamer, lavalamp aan. */

:root {
  --ink: #241432;
  --ink-2: #170c22;
  --sun: #ffb627;
  --flame: #f2542d;
  --moss: #7fb069;
  --bloom: #e85d9e;
  --paper: #fff3e0;
  --paper-dim: color-mix(in srgb, var(--paper) 62%, transparent);

  --display: "Fraunces", "Georgia", serif;
  --body: "Karla", ui-sans-serif, system-ui, sans-serif;

  --wonk: "SOFT" 100, "WONK" 1;
  --bar-h: 4.75rem;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: var(--body);
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.075rem);
  line-height: 1.55;
  color: var(--paper);
  background: var(--ink-2);
  display: grid;
  grid-template-rows: auto 1fr auto;
  overflow: hidden;
  overscroll-behavior: none;
  -webkit-font-smoothing: antialiased;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

:where(button, textarea):focus-visible {
  outline: 3px solid var(--sun);
  outline-offset: 3px;
}

/* ------------------------------------------------------------------ lavalamp */

.lamp {
  position: fixed;
  inset: 0;
  z-index: -1;
  background: radial-gradient(120% 90% at 50% 0%, #3b1a4a 0%, var(--ink) 45%, var(--ink-2) 100%);
  overflow: hidden;
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(48px);
  opacity: 0.42;
  will-change: transform;
}

.blob-1 {
  width: 58vmin;
  height: 58vmin;
  left: -14vmin;
  top: 8vmin;
  background: var(--flame);
  animation: drift-1 34s ease-in-out infinite alternate;
}

.blob-2 {
  width: 46vmin;
  height: 46vmin;
  right: -12vmin;
  top: 34vmin;
  background: var(--bloom);
  animation: drift-2 41s ease-in-out infinite alternate;
}

.blob-3 {
  width: 52vmin;
  height: 52vmin;
  left: 30vmin;
  bottom: -22vmin;
  background: var(--moss);
  opacity: 0.3;
  animation: drift-3 47s ease-in-out infinite alternate;
}

@keyframes drift-1 {
  to {
    transform: translate3d(16vmin, 22vmin, 0) scale(1.22);
  }
}
@keyframes drift-2 {
  to {
    transform: translate3d(-18vmin, -14vmin, 0) scale(0.82);
  }
}
@keyframes drift-3 {
  to {
    transform: translate3d(-22vmin, -18vmin, 0) scale(1.14);
  }
}

/* Korrel: houdt de gradiënten weg bij die gladde AI-look. */
.grain {
  position: absolute;
  inset: -50%;
  opacity: 0.16;
  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='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ----------------------------------------------------------------- kopregel */

.bar {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.85rem clamp(1rem, 4vw, 2rem);
  padding-top: max(0.85rem, env(safe-area-inset-top));
  border-bottom: 1px solid color-mix(in srgb, var(--paper) 12%, transparent);
  backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--ink-2) 55%, transparent);
}

.mark svg {
  width: 2.9rem;
  height: 2.9rem;
  display: block;
  animation: spin 60s linear infinite;
}

.mark[data-thinking="true"] svg {
  animation-duration: 3.5s;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.bar h1 {
  margin: 0;
  font-family: var(--display);
  font-variation-settings: var(--wonk);
  font-weight: 800;
  font-size: clamp(1.25rem, 1.05rem + 1vw, 1.7rem);
  letter-spacing: -0.015em;
  line-height: 1;
}

.bar h1 em {
  font-style: italic;
  font-weight: 500;
  color: var(--sun);
}

.bar p {
  margin: 0.25rem 0 0;
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  color: var(--paper-dim);
}

/* ------------------------------------------------------------------ gesprek */

.river {
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: clamp(1.25rem, 4vw, 2.25rem) clamp(1rem, 4vw, 2rem) 1rem;
  scrollbar-width: thin;
  scrollbar-color: color-mix(in srgb, var(--paper) 22%, transparent) transparent;
}

.river > * {
  max-width: 44rem;
  margin-inline: auto;
}

/* welkom */

.welcome {
  padding: clamp(1rem, 6vh, 4rem) 0 1rem;
}

.eyebrow {
  margin: 0 0 0.9rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--sun);
}

.welcome h2 {
  margin: 0;
  font-family: var(--display);
  font-variation-settings: var(--wonk);
  font-weight: 600;
  font-size: clamp(2rem, 1.3rem + 3.6vw, 3.5rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

.welcome h2 br + * {
  display: inline;
}

.lede {
  margin: 1.1rem 0 2rem;
  max-width: 32rem;
  color: var(--paper-dim);
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.chip {
  font: inherit;
  font-size: 0.9rem;
  color: var(--paper);
  background: color-mix(in srgb, var(--paper) 7%, transparent);
  border: 1px solid color-mix(in srgb, var(--paper) 18%, transparent);
  border-radius: 999px;
  padding: 0.5rem 1rem;
  cursor: pointer;
  transition: transform 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.chip:hover {
  background: color-mix(in srgb, var(--sun) 18%, transparent);
  border-color: var(--sun);
  transform: translateY(-2px) rotate(-1deg);
}

/* bubbels */

.msg {
  /* let op: shorthand — inline auto moet blijven staan, anders valt de kolom links */
  margin: 0 auto 1.1rem;
  display: flex;
}

.msg p {
  margin: 0;
  padding: 0.8rem 1.1rem;
  border-radius: 1.5rem;
  max-width: min(90%, 34rem);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.msg.me {
  justify-content: flex-end;
}

.msg.me p {
  background: linear-gradient(135deg, var(--flame), var(--bloom));
  border-bottom-right-radius: 0.4rem;
  box-shadow: 0 10px 26px -14px var(--flame);
}

.msg.bot p {
  background: color-mix(in srgb, var(--paper) 9%, transparent);
  border: 1px solid color-mix(in srgb, var(--paper) 14%, transparent);
  border-bottom-left-radius: 0.4rem;
  backdrop-filter: blur(8px);
}

.msg.bot.oops p {
  border-color: color-mix(in srgb, var(--flame) 55%, transparent);
  color: color-mix(in srgb, var(--paper) 85%, var(--flame));
}

.msg.new {
  animation: rise 0.36s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
}

/* streaming cursor */

.msg.bot.busy p::after {
  content: "";
  display: inline-block;
  width: 0.55em;
  height: 0.55em;
  margin-left: 0.18em;
  border-radius: 50%;
  background: var(--sun);
  animation: pulse 1s ease-in-out infinite;
  vertical-align: baseline;
}

@keyframes pulse {
  50% {
    opacity: 0.25;
    transform: scale(0.7);
  }
}

/* ----------------------------------------------------------------- invoerbalk */

.composer {
  display: flex;
  align-items: flex-end;
  gap: 0.6rem;
  padding: 0.75rem clamp(1rem, 4vw, 2rem);
  padding-bottom: max(0.75rem, env(safe-area-inset-bottom));
  border-top: 1px solid color-mix(in srgb, var(--paper) 12%, transparent);
  background: color-mix(in srgb, var(--ink-2) 72%, transparent);
  backdrop-filter: blur(14px);
}

.composer > * {
  max-width: none;
}

.composer textarea {
  flex: 1;
  font: inherit;
  color: var(--paper);
  background: color-mix(in srgb, var(--paper) 8%, transparent);
  border: 1px solid color-mix(in srgb, var(--paper) 20%, transparent);
  border-radius: 1.4rem;
  padding: 0.7rem 1.1rem;
  resize: none;
  max-height: 8.5rem;
  transition: border-color 0.2s ease;
}

.composer textarea::placeholder {
  color: color-mix(in srgb, var(--paper) 45%, transparent);
}

.composer textarea:focus {
  border-color: var(--sun);
}

#send {
  flex: none;
  width: 3rem;
  height: 3rem;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  color: var(--ink-2);
  background: radial-gradient(circle at 30% 25%, var(--sun), var(--flame));
  display: grid;
  place-items: center;
  transition: transform 0.18s ease, filter 0.18s ease;
}

#send svg {
  width: 1.4rem;
  height: 1.4rem;
}

#send:hover:not(:disabled) {
  transform: scale(1.07) rotate(6deg);
}

#send:disabled {
  filter: grayscale(0.7) brightness(0.7);
  cursor: not-allowed;
}

/* Invoerveld + knop vormen samen dezelfde 44rem-kolom als het gesprek. */
@media (min-width: 50rem) {
  .composer {
    padding-inline: max(clamp(1rem, 4vw, 2rem), calc(50vw - 22rem));
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::after {
    animation: none !important;
    transition-duration: 0.01ms !important;
  }
}