/* =========================================================
   Rishab Choudhary — Portfolio
   Static rebuild of the idea-brewery-space.lovable.app site.
   Design tokens + hand-written CSS (no build step needed).
   ========================================================= */

/* ---------- Design tokens (from original Tailwind theme) ---------- */
:root {
  --background:        oklch(13%  .02  270);
  --foreground:        oklch(96%  .005 250);
  --primary:           oklch(85%  .12   85);   /* warm cream/gold */
  --primary-foreground:oklch(15%  .02  270);
  --accent:            oklch(65%  .18  285);   /* purple */
  --muted-foreground:  oklch(68%  .02  260);
  --border:            oklch(28%  .03  270 / .6);

  --canvas-bg:         rgb(6, 4, 18);

  --font-serif: "Cormorant Garamond", ui-serif, Georgia, serif;
  --font-sans:  "Inter", ui-sans-serif, system-ui, sans-serif;
  --font-mono:  "JetBrains Mono", ui-monospace, monospace;

  --radius-pill: 9999px;
}

/* helpers for opacity variants */
.color-bg   { color: var(--background); }
.color-fg   { color: var(--foreground); }
.color-prim { color: var(--primary); }

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  background: var(--background);
  color: var(--foreground);
  font-family: var(--font-sans);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
ol { list-style: none; }
img, svg, canvas { display: block; max-width: 100%; }
button { font: inherit; }

/* ---------- Root layout ---------- */
.root {
  position: relative;
  min-height: 100vh;
  color: var(--foreground);
}

/* ---------- Canvas ---------- */
#flow-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  touch-action: none;
}

/* ---------- Section progress dots ---------- */
.dots {
  position: fixed;
  right: 1rem;
  top: 50%;
  z-index: 30;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transform: translateY(-50%);
  pointer-events: none;
}
.dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: var(--radius-pill);
  background: color-mix(in oklab, var(--foreground) 20%, transparent);
  transition: all .5s ease;
}
.dot.is-active {
  background: var(--primary);
  transform: scale(1.5);
  box-shadow: 0 0 12px var(--primary);
}

/* ---------- Interaction hint ---------- */
.hint {
  position: fixed;
  left: 50%;
  bottom: 2rem;
  z-index: 30;
  transform: translateX(-50%);
  padding: 0.25rem 0.75rem;
  border: 1px solid color-mix(in oklab, var(--border) 40%, transparent);
  border-radius: var(--radius-pill);
  background: color-mix(in oklab, var(--background) 30%, transparent);
  backdrop-filter: blur(8px);
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.35em;
  color: color-mix(in oklab, var(--muted-foreground) 80%, transparent);
  pointer-events: none;
  transition: opacity .6s ease;
}
.hint.is-hidden { opacity: 0; }

/* ---------- Generic section ---------- */
.section {
  position: relative;
  z-index: 10;
  padding: 8rem 1.5rem;
}
@media (min-width: 768px) {
  .section { padding: 8rem 3rem; }
}

/* ---------- Containers / panels ---------- */
.container { margin-inline: auto; max-width: 48rem; }
.container.wide { max-width: 64rem; }
.container.center { text-align: center; }

.panel {
  margin-inline: auto;
  max-width: 48rem;
  padding: 2rem;
  border: 1px solid color-mix(in oklab, var(--border) 30%, transparent);
  border-radius: 1.5rem;
  background: color-mix(in oklab, var(--background) 40%, transparent);
  backdrop-filter: blur(12px);
}
@media (min-width: 768px) {
  .panel { padding: 3rem; }
}

/* ---------- Eyebrow label ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--muted-foreground);
}
.eyebrow-line {
  display: inline-block;
  width: 2rem;
  height: 1px;
  background: color-mix(in oklab, var(--primary) 60%, transparent);
}
.eyebrow-wrap { margin-bottom: 3rem; }
.eyebrow-wrap.center { display: flex; justify-content: center; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-pill);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.75rem 1.5rem;
  transition: opacity .2s ease, background-color .2s ease;
  cursor: pointer;
}
.btn-primary {
  background: var(--primary);
  color: var(--primary-foreground);
}
.btn-primary:hover { opacity: .9; }
.btn-ghost {
  border: 1px solid color-mix(in oklab, var(--border) 70%, transparent);
  background: color-mix(in oklab, var(--background) 20%, transparent);
  color: var(--foreground);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover { background: color-mix(in oklab, var(--background) 40%, transparent); }
.btn-lg { padding: 1rem 2rem; }

/* =========================================================
   HERO
   ========================================================= */
.hero {
  height: 100vh;
  min-height: 640px;
  width: 100%;
  overflow: hidden;
  padding: 0;
}
.topbar {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 1.5rem;
}
@media (min-width: 768px) {
  .topbar { padding: 1.5rem 3rem; }
}
.brand {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  letter-spacing: 0.025em;
}
.brand .muted { color: var(--muted-foreground); }
.nav {
  display: none;
  gap: 2rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--muted-foreground);
}
.nav a { transition: color .2s ease; }
.nav a:hover { color: var(--foreground); }
@media (min-width: 768px) {
  .nav { display: flex; }
}

.hero-inner {
  position: relative;
  z-index: 10;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: calc(100vh - 120px);
  min-height: 520px;
  max-width: 64rem;
  padding: 0 1.5rem;
  text-align: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  padding: 0.25rem 0.75rem;
  border: 1px solid color-mix(in oklab, var(--border) 60%, transparent);
  border-radius: var(--radius-pill);
  background: color-mix(in oklab, var(--background) 30%, transparent);
  backdrop-filter: blur(8px);
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  color: var(--muted-foreground);
}
.ping-wrap {
  position: relative;
  display: flex;
  width: 0.375rem;
  height: 0.375rem;
}
.ping {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-pill);
  background: var(--primary);
  opacity: .6;
  animation: ping 1s cubic-bezier(0,0,.2,1) infinite;
}
.ping-dot {
  position: relative;
  width: 0.375rem;
  height: 0.375rem;
  border-radius: var(--radius-pill);
  background: var(--primary);
}
@keyframes ping {
  75%, 100% { transform: scale(2); opacity: 0; }
}

.hero-title {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: 3.75rem;
  line-height: 0.95;
  letter-spacing: -0.025em;
  text-wrap: balance;
}
.hero-title em {
  font-weight: 500;
  font-style: italic;
  color: color-mix(in oklab, var(--foreground) 90%, transparent);
}
@media (min-width: 768px) {
  .hero-title { font-size: 6rem; }
}

.hero-sub {
  margin-top: 1.5rem;
  max-width: 36rem;
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-style: italic;
  color: var(--muted-foreground);
}
@media (min-width: 768px) {
  .hero-sub { font-size: 1.25rem; }
}

.hero-cta {
  margin-top: 2.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
}

.scroll-word {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.35em;
  color: color-mix(in oklab, var(--muted-foreground) 70%, transparent);
}

/* =========================================================
   ABOUT
   ========================================================= */
.lead {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  line-height: 1.625;
  color: color-mix(in oklab, var(--foreground) 90%, transparent);
}
.lead .primary { color: var(--primary); }
@media (min-width: 768px) {
  .lead { font-size: 1.875rem; }
}
.body {
  margin-top: 1.5rem;
  max-width: 42rem;
  font-size: 1rem;
  line-height: 1.625;
  color: var(--muted-foreground);
}

/* =========================================================
   SKILLS
   ========================================================= */
.skills-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  overflow: hidden;
  border: 1px solid color-mix(in oklab, var(--border) 30%, transparent);
  border-radius: 1rem;
  background: color-mix(in oklab, var(--border) 30%, transparent);
  backdrop-filter: blur(12px);
}
@media (min-width: 768px) {
  .skills-grid { grid-template-columns: 1fr 1fr; }
}
.skill {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.5rem;
  background: color-mix(in oklab, var(--background) 55%, transparent);
  transition: background-color .2s ease;
}
.skill:hover { background: color-mix(in oklab, var(--background) 75%, transparent); }
.skill-key {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--foreground);
}
.skill-val {
  text-align: right;
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

/* =========================================================
   TIMELINE
   ========================================================= */
.timeline { display: flex; flex-direction: column; gap: 3rem; }
.tl-item {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 1.5rem;
}
@media (min-width: 768px) {
  .tl-item { grid-template-columns: 160px 1fr; }
}
.tl-when {
  padding-top: 0.25rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--muted-foreground);
}
.tl-role {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--foreground);
}
.tl-note {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  line-height: 1.625;
  color: var(--muted-foreground);
}

/* =========================================================
   FEATURE CARDS
   ========================================================= */
.cards {
  display: grid;
  gap: 1.5rem;
}
@media (min-width: 768px) {
  .cards { grid-template-columns: repeat(3, 1fr); }
}
.card {
  position: relative;
  overflow: hidden;
  border: 1px solid color-mix(in oklab, var(--border) 40%, transparent);
  border-radius: 1rem;
  padding: 1.5rem;
  background: color-mix(in oklab, var(--background) 50%, transparent);
  backdrop-filter: blur(12px);
  transition: border-color .2s ease;
}
.card:hover { border-color: color-mix(in oklab, var(--accent) 50%, transparent); }
.card-glow {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom right,
    color-mix(in oklab, var(--accent) 5%, transparent),
    transparent,
    color-mix(in oklab, var(--primary) 5%, transparent));
  opacity: 0;
  transition: opacity .2s ease;
}
.card:hover .card-glow { opacity: 1; }
.card-content { position: relative; }
.card-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  color: var(--accent);
}
.card-title {
  margin-top: 0.75rem;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--foreground);
}
.card-body {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  line-height: 1.625;
  color: var(--muted-foreground);
}

/* =========================================================
   CONTACT
   ========================================================= */
.contact { padding: 10rem 1.5rem; }
@media (min-width: 768px) {
  .contact { padding: 10rem 3rem; }
}
.contact-title {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: 2.25rem;
  line-height: 1.25;
  text-wrap: balance;
}
.contact-title em { font-style: italic; color: var(--primary); }
@media (min-width: 768px) {
  .contact-title { font-size: 3.75rem; }
}
.contact-sub {
  margin: 1.5rem auto 0;
  max-width: 28rem;
  color: var(--muted-foreground);
}
.contact .btn { margin-top: 2.5rem; }

/* =========================================================
   FOOTER
   ========================================================= */
.footer {
  position: relative;
  z-index: 10;
  border-top: 1px solid color-mix(in oklab, var(--border) 30%, transparent);
  background: color-mix(in oklab, var(--background) 40%, transparent);
  padding: 2.5rem 1.5rem;
  backdrop-filter: blur(12px);
}
@media (min-width: 768px) {
  .footer { padding: 2.5rem 3rem; }
}
.footer-inner {
  margin-inline: auto;
  max-width: 64rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  color: var(--muted-foreground);
}
@media (min-width: 768px) {
  .footer-inner { flex-direction: row; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .ping { animation: none; }
  html { scroll-behavior: auto; }
}

/* =========================================================
   AI TWIN — chat widget
   ========================================================= */

/* Floating button (bottom-right) */
.twin-fab {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 40;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1rem;
  border: 1px solid color-mix(in oklab, var(--border) 70%, transparent);
  border-radius: var(--radius-pill);
  background: color-mix(in oklab, var(--background) 70%, transparent);
  color: var(--foreground);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
  transition: transform .15s ease, opacity .2s ease, background-color .2s ease;
}
.twin-fab:hover { transform: translateY(-1px); background: color-mix(in oklab, var(--background) 90%, transparent); }
.twin-fab:active { transform: translateY(0) scale(0.98); }
.twin-fab-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: var(--radius-pill);
  background: var(--primary);
  box-shadow: 0 0 10px var(--primary);
  animation: twin-pulse 2s ease-in-out infinite;
}
@keyframes twin-pulse { 50% { opacity: .5; } }

/* When the panel is open, hide the FAB + hint */
.twin-overlay.is-open ~ .twin-fab,
.twin-overlay.is-open + .twin-fab { opacity: 0; pointer-events: none; transform: translateY(8px); }

/* Overlay backdrop */
.twin-overlay {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  padding: 1rem;
  background: rgba(6, 4, 18, 0.55);
  backdrop-filter: blur(2px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .25s ease, visibility .25s ease;
}
.twin-overlay.is-open { opacity: 1; visibility: visible; }

/* Chat panel */
.twin-panel {
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 24rem;
  height: min(34rem, 78vh);
  border: 1px solid color-mix(in oklab, var(--border) 70%, transparent);
  border-radius: 1.25rem;
  background: color-mix(in oklab, var(--background) 85%, transparent);
  backdrop-filter: blur(20px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  overflow: hidden;
  transform: translateY(16px) scale(0.98);
  opacity: 0;
  transition: transform .3s cubic-bezier(0.16, 1, 0.3, 1), opacity .3s ease;
}
.twin-overlay.is-open .twin-panel { transform: translateY(0) scale(1); opacity: 1; }

@media (min-width: 640px) {
  .twin-overlay { padding: 1.5rem; align-items: flex-end; }
}

/* Header */
.twin-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid color-mix(in oklab, var(--border) 40%, transparent);
}
.twin-id { display: flex; align-items: center; gap: 0.65rem; }
.twin-avatar {
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-pill);
  background: color-mix(in oklab, var(--primary) 20%, transparent);
  border: 1px solid color-mix(in oklab, var(--primary) 50%, transparent);
  font-family: var(--font-serif);
  font-size: 0.95rem;
  color: var(--primary);
}
.twin-id > div { display: flex; flex-direction: column; line-height: 1.2; }
.twin-name { font-weight: 600; font-size: 0.95rem; color: var(--foreground); }
.twin-status {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted-foreground);
}
.twin-live {
  width: 0.4rem; height: 0.4rem; border-radius: var(--radius-pill);
  background: oklch(75% 0.18 145);
  box-shadow: 0 0 8px oklch(75% 0.18 145);
}
.twin-close {
  display: grid; place-items: center;
  width: 1.75rem; height: 1.75rem;
  border-radius: var(--radius-pill);
  background: transparent;
  border: none;
  color: var(--muted-foreground);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  transition: background-color .15s ease, color .15s ease;
}
.twin-close:hover { background: color-mix(in oklab, var(--foreground) 10%, transparent); color: var(--foreground); }

/* Messages */
.twin-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  scrollbar-width: thin;
  scrollbar-color: color-mix(in oklab, var(--foreground) 20%, transparent) transparent;
}
.twin-messages::-webkit-scrollbar { width: 6px; }
.twin-messages::-webkit-scrollbar-thumb {
  background: color-mix(in oklab, var(--foreground) 20%, transparent);
  border-radius: var(--radius-pill);
}
.twin-msg { display: flex; }
.twin-msg.user { justify-content: flex-end; }
.twin-bubble {
  max-width: 82%;
  padding: 0.6rem 0.85rem;
  border-radius: 0.9rem;
  font-size: 0.9rem;
  line-height: 1.5;
  word-wrap: break-word;
}
.twin-msg.assistant .twin-bubble {
  background: color-mix(in oklab, var(--foreground) 8%, transparent);
  border: 1px solid color-mix(in oklab, var(--border) 40%, transparent);
  color: var(--foreground);
  border-bottom-left-radius: 0.3rem;
}
.twin-msg.user .twin-bubble {
  background: var(--primary);
  color: var(--primary-foreground);
  border-bottom-right-radius: 0.3rem;
}

/* Typing indicator */
.twin-typing .twin-bubble { display: inline-flex; gap: 0.25rem; align-items: center; }
.twin-dot {
  width: 0.4rem; height: 0.4rem; border-radius: var(--radius-pill);
  background: var(--muted-foreground);
  animation: twin-bounce 1.2s infinite ease-in-out;
}
.twin-dot:nth-child(2) { animation-delay: 0.15s; }
.twin-dot:nth-child(3) { animation-delay: 0.3s; }
@keyframes twin-bounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.5; }
  30% { transform: translateY(-4px); opacity: 1; }
}

/* Input row */
.twin-input {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem;
  border-top: 1px solid color-mix(in oklab, var(--border) 40%, transparent);
}
.twin-input input {
  flex: 1;
  padding: 0.65rem 0.9rem;
  border: 1px solid color-mix(in oklab, var(--border) 60%, transparent);
  border-radius: var(--radius-pill);
  background: color-mix(in oklab, var(--background) 60%, transparent);
  color: var(--foreground);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  outline: none;
  transition: border-color .15s ease;
}
.twin-input input:focus { border-color: color-mix(in oklab, var(--primary) 60%, transparent); }
.twin-input input::placeholder { color: var(--muted-foreground); }
.twin-input button {
  display: grid; place-items: center;
  width: 2.5rem; height: 2.5rem;
  flex-shrink: 0;
  border: none;
  border-radius: var(--radius-pill);
  background: var(--primary);
  color: var(--primary-foreground);
  cursor: pointer;
  transition: opacity .15s ease, transform .1s ease;
}
.twin-input button:hover { opacity: .9; }
.twin-input button:active { transform: scale(0.94); }
.twin-input button:disabled { opacity: 0.4; cursor: not-allowed; }

/* Card becomes an obvious button */
.card-twin { cursor: pointer; }
.card-cta {
  display: inline-block;
  margin-top: 0.9rem;
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--primary);
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  .twin-fab-dot, .twin-dot { animation: none; }
  .twin-panel, .twin-overlay { transition: none; }
}

/* =========================================================
   NOW PLAYING — Spotify status card
   ========================================================= */
.np-row {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-top: 0.85rem;
}
.np-art {
  flex-shrink: 0;
  width: 3rem;
  height: 3rem;
  display: grid;
  place-items: center;
  border-radius: 0.6rem;
  font-size: 1.25rem;
  background-color: color-mix(in oklab, var(--accent) 14%, transparent);
  background-size: cover;
  background-position: center;
  border: 1px solid color-mix(in oklab, var(--border) 50%, transparent);
  transition: background-color .2s ease;
}
.np-art.has-art { background-color: transparent; border-color: transparent; }
.np-art.has-art .np-icon { display: none; }
.np-text { min-width: 0; }
.np-title {
  margin-top: 0;
  font-size: 1.05rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.np-sub {
  margin-top: 0.15rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.np-bar {
  margin-top: 0.9rem;
  height: 3px;
  border-radius: var(--radius-pill);
  background: color-mix(in oklab, var(--foreground) 12%, transparent);
  overflow: hidden;
}
.np-bar-fill {
  height: 100%;
  width: 0%;
  background: var(--primary);
  transition: width 1.2s linear;
}
.card-now.is-track .card-tag { color: oklch(75% 0.18 145); }