/* ============================================
   FlowPilot — How It Works (Interactive Tabs)
   Horizontal tab strip + panels with mockups.
   ============================================ */

.hiw {
  max-width: 1080px;
  margin: 0 auto;
}

/* ═══════════════════════════════════════════
   TAB STRIP
   ═══════════════════════════════════════════ */

.hiw__tabs {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  gap: 8px;
  padding: 6px;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  margin-bottom: 40px;
}

.hiw__tab {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  padding: 14px 16px;
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  overflow: hidden;
  transition: background var(--duration-base) var(--ease-out),
              color var(--duration-base) var(--ease-out);
  text-align: left;
}

.hiw__tab:hover {
  background: var(--bg-2);
}

.hiw__tab--active {
  background: var(--bg-2);
  box-shadow: 0 0 0 1px var(--border-lit), 0 0 24px var(--brand-glow-soft);
}

.hiw__tab-num {
  font-family: "JetBrains Mono", "Geist Mono", ui-monospace, monospace;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-2);
  letter-spacing: 0.04em;
  transition: color var(--duration-base) var(--ease-out);
}

.hiw__tab--active .hiw__tab-num {
  color: var(--brand-300);
}

.hiw__tab-label {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--text-1);
  transition: color var(--duration-base) var(--ease-out);
  letter-spacing: -0.01em;
}

.hiw__tab--active .hiw__tab-label,
.hiw__tab:hover .hiw__tab-label {
  color: var(--text-0);
}

/* Auto-advance progress bar */
.hiw__tab-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 2px;
  width: 0;
  background: var(--brand-500);
  transition: none;
  border-radius: 1px;
}

.hiw__tab--active .hiw__tab-progress {
  width: 100%;
  transition: width linear;
}

.hiw.is-paused .hiw__tab--active .hiw__tab-progress {
  transition: none;
}

@media (max-width: 640px) {
  .hiw__tabs {
    grid-template-columns: 1fr 1fr;
    gap: 4px;
    padding: 4px;
  }

  .hiw__tab {
    padding: 10px 12px;
  }

  .hiw__tab-label {
    font-size: 14px;
  }
}

/* ═══════════════════════════════════════════
   PANELS
   ═══════════════════════════════════════════ */

.hiw__panels {
  position: relative;
  min-height: 480px;
}

.hiw__panel {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
  pointer-events: none;
}

.hiw__panel[hidden] {
  display: none;
}

.hiw__panel--active {
  position: relative;
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.hiw__panel-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  padding: 32px;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-2xl);
}

@media (min-width: 900px) {
  .hiw__panel-content {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    gap: 48px;
    padding: 48px;
    align-items: center;
  }

  .hiw__panels {
    min-height: 520px;
  }
}

.hiw__text {
  min-width: 0;
}

.hiw__title {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--text-0);
  margin-bottom: 16px;
}

.hiw__body {
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-1);
  margin-bottom: 24px;
}

.hiw__points {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.hiw__points li {
  position: relative;
  padding-left: 24px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-1);
}

.hiw__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--brand-500);
  opacity: 0.3;
  box-shadow: 0 0 0 3px var(--brand-glow-soft);
}

.hiw__mockup {
  min-width: 0;
}

/* ═══════════════════════════════════════════
   MOCKUP 1: CHAT
   ═══════════════════════════════════════════ */

.hiw-chat {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 20px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
}

.hiw-chat__bubble {
  max-width: 90%;
  padding: 12px 16px;
  font-size: 14px;
  line-height: 1.5;
  border-radius: var(--radius-lg);
}

.hiw-chat__bubble--user {
  align-self: flex-end;
  background: var(--bg-1);
  border: 1px solid var(--border);
  color: var(--text-0);
}

.hiw-chat__bubble--ai {
  align-self: flex-start;
  background: var(--brand-glow-soft);
  border: 1px solid var(--border-lit);
  color: var(--text-0);
}

.hiw-chat__star {
  color: var(--brand-300);
  margin-right: 4px;
  font-weight: 700;
}

.hiw-chat__input {
  margin-top: 8px;
  padding: 12px 14px;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  color: var(--text-2);
  position: relative;
  min-height: 22px;
}

.hiw-chat__cursor {
  display: inline-block;
  width: 2px;
  height: 14px;
  background: var(--brand-300);
  animation: hiw-blink 1s infinite step-end;
}

@keyframes hiw-blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

/* ═══════════════════════════════════════════
   MOCKUP 2: CANVAS (reuse workflow-node styles)
   ═══════════════════════════════════════════ */

.hiw-canvas {
  padding: 24px;
  background:
    linear-gradient(var(--bg-2), var(--bg-2)) padding-box,
    var(--gradient-border) border-box;
  border: 1px solid transparent;
  border-radius: var(--radius-xl);
}

.hiw-canvas__label {
  display: block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-2);
  margin-bottom: 16px;
}

/* ═══════════════════════════════════════════
   MOCKUP 3: INTEGRATIONS
   ═══════════════════════════════════════════ */

.hiw-integrations {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  padding: 20px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
}

.hiw-int-tile {
  position: relative;
  padding: 16px 12px;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  transition: all var(--duration-base) var(--ease-out);
}

.hiw-int-tile--connected {
  border-color: var(--border-lit);
  background: var(--brand-glow-soft);
}

.hiw-int-tile__icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-1);
}

.hiw-int-tile__icon svg {
  width: 20px;
  height: 20px;
}

.hiw-int-tile--connected .hiw-int-tile__icon {
  color: var(--brand-300);
}

.hiw-int-tile__label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-0);
}

.hiw-int-tile__status {
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--brand-500);
  color: #fff;
}

.hiw-int-tile__status--idle {
  background: var(--bg-2);
  border: 1px solid var(--border);
  color: var(--text-2);
}

.hiw-int-tile--more {
  background: transparent;
  border: 1px dashed var(--border);
  color: var(--text-2);
}

.hiw-int-tile--more .hiw-int-tile__label {
  color: var(--text-2);
  font-size: 12px;
}

/* ═══════════════════════════════════════════
   MOCKUP 4: SCHEDULE
   ═══════════════════════════════════════════ */

.hiw-schedule {
  padding: 24px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
}

.hiw-schedule__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.hiw-schedule__title {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  color: var(--text-0);
}

.hiw-schedule__badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  background: var(--brand-glow-soft);
  border: 1px solid var(--border-lit);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 500;
  color: var(--brand-300);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.hiw-schedule__option {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 12px;
  border-radius: var(--radius-md);
  margin-bottom: 4px;
  transition: background var(--duration-base) var(--ease-out);
}

.hiw-schedule__option--active {
  background: var(--brand-glow-soft);
  border: 1px solid var(--border-lit);
}

.hiw-schedule__radio {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 1.5px solid var(--border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hiw-schedule__option--active .hiw-schedule__radio {
  border-color: var(--brand-500);
}

.hiw-schedule__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand-500);
}

.hiw-schedule__text {
  flex: 1;
  min-width: 0;
}

.hiw-schedule__label {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-0);
  margin-bottom: 2px;
}

.hiw-schedule__detail {
  font-size: 12px;
  color: var(--text-2);
}

.hiw-schedule__log {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-2);
}

.hiw-schedule__log-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 6px var(--accent-cyan);
}

.hiw-schedule__log-text {
  font-variant-numeric: tabular-nums;
}

/* ═══════════════════════════════════════════
   MOCKUP ANIMATIONS
   Triggered by .is-animating on .hiw__panel
   Each panel plays a choreographed sequence.
   ═══════════════════════════════════════════ */

/* ─── Universal entry: soft fade-in for any mockup child ─── */
@keyframes hiw-fadeInUp {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes hiw-fadeInFromRight {
  from {
    opacity: 0;
    transform: translateX(16px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes hiw-fadeInFromLeft {
  from {
    opacity: 0;
    transform: translateX(-16px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Respect reduced-motion preference for all panel animations */
@media (prefers-reduced-motion: reduce) {
  .hiw__panel.is-animating .hiw-chat__bubble,
  .hiw__panel.is-animating .hiw-chat__input,
  .hiw__panel.is-animating .workflow-node,
  .hiw__panel.is-animating .workflow-line,
  .hiw__panel.is-animating .hiw-int-tile,
  .hiw__panel.is-animating .hiw-schedule__option,
  .hiw__panel.is-animating .hiw-schedule__log,
  .hiw__panel.is-animating .hiw-chat__typing,
  .hiw__panel.is-animating .hiw-chat__typed,
  .hiw__panel.is-animating .hiw-int-tile__status {
    animation: none !important;
    transition: none !important;
  }
}

/* ═══════════════════════════════════════════
   TAB 1: DESCRIBE — Chat conversation
   ═══════════════════════════════════════════ */

/* Hide elements initially when not animating.
   Using visibility + opacity (not opacity alone) ensures WAVE / other
   tools that don't run JS skip contrast checks on these pre-animation
   elements — they are properly "not visible" in the accessibility tree. */
.hiw-chat__bubble,
.hiw-chat__input {
  opacity: 0;
  visibility: hidden;
}

.hiw__panel.is-animating .hiw-chat__bubble,
.hiw__panel.is-animating .hiw-chat__input {
  visibility: visible;
}

.hiw__panel.is-animating .hiw-chat__bubble--user {
  animation: hiw-fadeInFromRight 500ms var(--ease-out) 0ms forwards;
}

.hiw__panel.is-animating .hiw-chat__typing {
  animation: hiw-fadeInFromLeft 400ms var(--ease-out) 800ms forwards;
}

.hiw__panel.is-animating .hiw-chat__bubble--ai {
  animation: hiw-fadeInFromLeft 500ms var(--ease-out) 1600ms forwards;
}

.hiw__panel.is-animating .hiw-chat__input {
  animation: hiw-fadeInUp 400ms var(--ease-out) 2200ms forwards;
}

/* "Thinking" dots bubble (placeholder before AI responds) */
.hiw-chat__typing {
  align-self: flex-start;
  display: none;
  padding: 14px 18px;
  background: var(--brand-glow-soft);
  border: 1px solid var(--border-lit);
  border-radius: var(--radius-lg);
  opacity: 0;
}

.hiw__panel.is-animating .hiw-chat__typing {
  display: flex;
  gap: 4px;
  align-items: center;
}

/* Hide typing dots once AI bubble arrives */
.hiw__panel.is-animating .hiw-chat__typing {
  animation:
    hiw-fadeInFromLeft 400ms var(--ease-out) 800ms forwards,
    hiw-typing-hide 0ms linear 1700ms forwards;
}

@keyframes hiw-typing-hide {
  to {
    opacity: 0;
    display: none;
  }
}

.hiw-chat__typing-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand-400);
  animation: hiw-dot-bounce 1s infinite ease-in-out;
}

.hiw-chat__typing-dot:nth-child(2) {
  animation-delay: 150ms;
}

.hiw-chat__typing-dot:nth-child(3) {
  animation-delay: 300ms;
}

@keyframes hiw-dot-bounce {
  0%, 60%, 100% {
    transform: translateY(0);
    opacity: 0.5;
  }
  30% {
    transform: translateY(-4px);
    opacity: 1;
  }
}

/* Typewriter text in the input field */
.hiw-chat__typed {
  display: inline-block;
  overflow: hidden;
  white-space: nowrap;
  color: var(--text-0);
  max-width: 0;
  vertical-align: bottom;
}

.hiw__panel.is-animating .hiw-chat__typed {
  animation: hiw-typewriter 1400ms steps(26, end) 2800ms forwards;
}

@keyframes hiw-typewriter {
  from { max-width: 0; }
  to { max-width: 26ch; }
}

/* Hide placeholder text while typed text is showing */
.hiw-chat__placeholder {
  color: var(--text-2);
  transition: opacity 200ms var(--ease-out);
}

.hiw__panel.is-animating .hiw-chat__placeholder {
  animation: hiw-placeholder-hide 0ms linear 2800ms forwards;
}

@keyframes hiw-placeholder-hide {
  to { opacity: 0; display: none; }
}

/* ═══════════════════════════════════════════
   TAB 2: DESIGN — Canvas nodes drawing in
   ═══════════════════════════════════════════ */

/* Initial hidden state */
.hiw-canvas .workflow-node,
.hiw-canvas .workflow-line {
  opacity: 0;
}

.hiw-canvas .workflow-line {
  transform: scaleY(0);
  transform-origin: top center;
  position: relative;
  overflow: visible;
}

/* Sequential reveal: nodes + lines */
.hiw__panel.is-animating .hiw-canvas .workflow-node:nth-of-type(1) {
  animation: hiw-fadeInUp 500ms var(--ease-out) 100ms forwards;
}

.hiw__panel.is-animating .hiw-canvas .workflow-line:nth-of-type(2) {
  animation: hiw-line-draw 400ms var(--ease-out) 600ms forwards;
}

.hiw__panel.is-animating .hiw-canvas .workflow-node:nth-of-type(3) {
  animation: hiw-fadeInUp 500ms var(--ease-out) 1000ms forwards;
}

.hiw__panel.is-animating .hiw-canvas .workflow-line:nth-of-type(4) {
  animation: hiw-line-draw 400ms var(--ease-out) 1500ms forwards;
}

.hiw__panel.is-animating .hiw-canvas .workflow-node:nth-of-type(5) {
  animation: hiw-fadeInUp 500ms var(--ease-out) 1900ms forwards;
}

@keyframes hiw-line-draw {
  from {
    opacity: 0.7;
    transform: scaleY(0);
  }
  to {
    opacity: 0.7;
    transform: scaleY(1);
  }
}

/* Featured node glow pulse — same visual language as Hero */
.hiw__panel.is-animating .hiw-canvas .workflow-node--featured {
  animation:
    hiw-fadeInUp 500ms var(--ease-out) 1000ms forwards,
    hiw-node-pulse 2.4s ease-in-out 2500ms infinite;
}

@keyframes hiw-node-pulse {
  0%, 100% {
    box-shadow:
      0 0 0 1px var(--brand-500),
      0 0 20px var(--brand-glow-soft);
  }
  50% {
    box-shadow:
      0 0 0 1px var(--brand-500),
      0 0 36px var(--brand-glow);
  }
}

/* Flowing pulse dots on connection lines — matches Hero workflow panel.
   The ::after pseudo-element on each line carries a light dot that travels top → bottom.
   Two lines staggered so the pulse feels like one signal traveling end-to-end. */
.hiw-canvas .workflow-line::after {
  content: "";
  position: absolute;
  left: 50%;
  top: -3px;
  transform: translateX(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand-300);
  box-shadow: 0 0 10px var(--brand-400);
  opacity: 0;
}

.hiw__panel.is-animating .hiw-canvas .workflow-line:nth-of-type(2)::after {
  animation: hiw-pulse-travel 3s ease-in-out 2500ms infinite;
}

.hiw__panel.is-animating .hiw-canvas .workflow-line:nth-of-type(4)::after {
  animation: hiw-pulse-travel 3s ease-in-out 4000ms infinite;
}

@keyframes hiw-pulse-travel {
  0% {
    top: -3px;
    opacity: 0;
  }
  10% { opacity: 1; }
  50% {
    top: calc(100% - 3px);
    opacity: 1;
  }
  60% { opacity: 0; }
  100% {
    top: calc(100% - 3px);
    opacity: 0;
  }
}

.hiw-canvas {
  position: relative;
}

/* ═══════════════════════════════════════════
   TAB 3: CONNECT — Integration tiles + Connect flow
   ═══════════════════════════════════════════ */

.hiw-int-tile {
  opacity: 0;
}

/* Waterfall fade-in: 6 tiles cascade */
.hiw__panel.is-animating .hiw-int-tile:nth-of-type(1) {
  animation: hiw-fadeInUp 400ms var(--ease-out) 0ms forwards;
}
.hiw__panel.is-animating .hiw-int-tile:nth-of-type(2) {
  animation: hiw-fadeInUp 400ms var(--ease-out) 80ms forwards;
}
.hiw__panel.is-animating .hiw-int-tile:nth-of-type(3) {
  animation:
    hiw-fadeInUp 400ms var(--ease-out) 160ms forwards,
    hiw-tile-connect 1200ms var(--ease-out) 1400ms forwards;
}
.hiw__panel.is-animating .hiw-int-tile:nth-of-type(4) {
  animation: hiw-fadeInUp 400ms var(--ease-out) 240ms forwards;
}
.hiw__panel.is-animating .hiw-int-tile:nth-of-type(5) {
  animation: hiw-fadeInUp 400ms var(--ease-out) 320ms forwards;
}
.hiw__panel.is-animating .hiw-int-tile:nth-of-type(6) {
  animation: hiw-fadeInUp 400ms var(--ease-out) 400ms forwards;
}

/* The 3rd tile (Notion) transitions from idle to connected mid-animation */
@keyframes hiw-tile-connect {
  0% {
    background: var(--bg-1);
    border-color: var(--border);
  }
  100% {
    background: var(--brand-glow-soft);
    border-color: var(--border-lit);
  }
}

/* Notion status label transitions */
.hiw-int-tile:nth-of-type(3) .hiw-int-tile__status--idle {
  position: relative;
}

.hiw__panel.is-animating .hiw-int-tile:nth-of-type(3) .hiw-int-tile__status {
  animation: hiw-status-swap 1200ms ease-in-out 1400ms forwards;
}

@keyframes hiw-status-swap {
  0% {
    background: var(--bg-2);
    border: 1px solid var(--border);
    color: var(--text-2);
  }
  40% {
    background: var(--bg-2);
    border: 1px solid var(--border-lit);
    color: var(--brand-300);
  }
  100% {
    background: var(--brand-500);
    border: 1px solid transparent;
    color: #fff;
  }
}

/* ═══════════════════════════════════════════
   TAB 4: RUN — Trigger options + log pulse
   ═══════════════════════════════════════════ */

.hiw-schedule__header,
.hiw-schedule__option,
.hiw-schedule__log {
  opacity: 0;
}

.hiw__panel.is-animating .hiw-schedule__header {
  animation: hiw-fadeInUp 400ms var(--ease-out) 0ms forwards;
}

.hiw__panel.is-animating .hiw-schedule__option:nth-of-type(2) {
  animation: hiw-fadeInFromLeft 400ms var(--ease-out) 300ms forwards;
}
.hiw__panel.is-animating .hiw-schedule__option:nth-of-type(3) {
  animation: hiw-fadeInFromLeft 400ms var(--ease-out) 500ms forwards;
}
.hiw__panel.is-animating .hiw-schedule__option:nth-of-type(4) {
  animation: hiw-fadeInFromLeft 400ms var(--ease-out) 700ms forwards;
}

/* Radio dot pops into existence */
.hiw-schedule__option--active .hiw-schedule__dot {
  transform: scale(0);
}

.hiw__panel.is-animating .hiw-schedule__option--active .hiw-schedule__dot {
  animation: hiw-dot-pop 400ms cubic-bezier(0.34, 1.56, 0.64, 1) 1100ms forwards;
}

@keyframes hiw-dot-pop {
  from {
    transform: scale(0);
  }
  to {
    transform: scale(1);
  }
}

/* Log region fade-in + pulsing cyan dot */
.hiw__panel.is-animating .hiw-schedule__log {
  animation: hiw-fadeInUp 400ms var(--ease-out) 1500ms forwards;
}

.hiw__panel.is-animating .hiw-schedule__log-dot {
  animation: hiw-log-pulse 1.8s ease-in-out 1900ms infinite;
}

@keyframes hiw-log-pulse {
  0%, 100% {
    box-shadow: 0 0 6px var(--accent-cyan);
    opacity: 1;
  }
  50% {
    box-shadow: 0 0 14px var(--accent-cyan);
    opacity: 0.7;
  }
}