:root {
  --bg: #fcfcfc;
  --surface: #ffffff;
  --surface-strong: #f6f6f6;
  --surface-strong-2: #f0f0f0;
  --text-primary: #202020;
  --text-secondary: lab(47% 0 0);
  --text-tertiary: #8d8d8d;
  --border-primary: #e8e8e8;
  --border-focus: #d9d9d9;
  --destructive: #ce2c31;
  --border-secondary: #ececec;
  --accent: #202020;
  --accent-soft: rgb(32 32 32 / 0.08);
  --badge-bubble: #ececec;
  --on-accent: #ffffff;
  --overlay: #000000;
  --source-highlight: #ffe58f;
  --source-highlight-edge: #b58900;

  --shadow-card: 0 1px 2px -1px rgb(0 0 0 / 0.06), 0 1px 1px rgb(0 0 0 / 0.03);
  --shadow-lg: 0 8px 24px 0 rgb(0 0 0 / 0.12), 0 4px 16px 0 rgb(0 0 0 / 0.08);
  --shadow-halo: 0 0 0 9px var(--bg), 0 0 0 10px var(--border-secondary),
    0 1px 2px -1px rgb(0 0 0 / 0.06), 0 2px 4px 0 rgb(0 0 0 / 0.04);

  --font-sans: "Pretendard Variable", "Pretendard", "Inter", -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", monospace;

  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-lg: 1.125rem;
  --fs-xl: 1.25rem;
  --fs-2xl: 1.5rem;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-pill: 999px;

  --header-h: 3.5rem;
  --col-min: 300px;
  --col-max: 560px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-fast: 150ms;

  --pptx-cover-bg: #e6e3dd;
  --pptx-cover-fg: #1a1a1a;
  --pptx-accent: #3457d5;
  --pptx-accent-warm: #e2672a;
  --pptx-divider-bg: #3a3a3a;
  --pptx-stat-bg: #121212;
}

@media (min-width: 48rem) {
  :root {
    --header-h: 4.25rem;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body,
h1,
h2,
h3,
p,
figure,
ul,
li,
dl,
dt,
dd {
  margin: 0;
}

ul {
  padding: 0;
  list-style: none;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

::selection {
  background-color: var(--accent-soft);
  color: var(--accent);
}

:root[data-selection-on-dark] ::selection {
  background-color: rgb(255 255 255 / 0.24);
  color: #ffffff;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: 1.5;
}

a:focus-visible,
button:focus-visible {
  outline: none;
}

.eyebrow {
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.panel__scroll,
.dashboard {
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.panel__scroll::-webkit-scrollbar,
.dashboard::-webkit-scrollbar {
  display: none;
}

.app {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

.site-header {
  height: var(--header-h);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-inline: var(--space-4);
  width: 100%;
}

@media (min-width: 48rem) {
  .site-header {
    padding-inline: var(--space-8);
    padding-top: var(--space-8);
  }
}

.site-header__name {
  font-size: var(--fs-base);
  font-weight: 500;
  color: var(--text-primary);
}

.site-header__nav {
  display: flex;
  gap: var(--space-2);
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-sm);
  background: var(--surface);
  border: 1px solid var(--border-primary);
  color: var(--text-primary);
  box-shadow: var(--shadow-card);
  transition: color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}

.icon-btn:hover:not(:disabled) {
  background: var(--surface-strong);
  transform: translateY(-2px);
}

.icon-btn:active:not(:disabled) {
  transform: translateY(0);
}

.icon-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.dashboard {
  min-height: 0;
  width: 100%;
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

@media (min-width: 48rem) {
  .dashboard {
    height: calc(100dvh - var(--header-h));
    flex: none;
    flex-direction: row;
    align-items: stretch;
    overflow-x: auto;
    overflow-y: hidden;
    overscroll-behavior-x: contain;
    scroll-behavior: smooth;
    scroll-snap-type: x proximity;
    scroll-padding-inline: var(--space-8);
    padding: var(--space-8);
    gap: var(--space-8);
  }

  .dashboard > .panel,
  .dashboard > .about-stack {
    flex: 0 0 clamp(300px, 30vw, 430px);
    scroll-snap-align: start;
  }

  .dashboard > .panel {
    height: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .dashboard {
    scroll-behavior: auto;
  }
}

.panel {
  width: 100%;
  min-width: 0;
  background: var(--surface);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-halo);
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.about-stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.about-stack > .panel {
  flex: 1;
  height: auto;
  min-height: 0;
}

.about-stack > .side-project {
  flex: none;
}

@media (min-width: 48rem) {
  .about-stack {
    gap: var(--space-8);
  }
}

.panel__title {
  margin-bottom: var(--space-4);
}

.panel__scroll {
  flex: 1;
  min-width: 0;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  padding: var(--space-6);
}

.about__photo {
  display: block;
  flex: 1 1 0;
  min-height: 0;
  width: 100%;
  object-fit: cover;
  object-position: 50% 35%;
  background: var(--surface-strong);
}

.about-panel .panel__scroll {
  flex: 0 1 auto;
  min-height: 0;
}

.about__intro {
  word-break: keep-all;
  font-size: var(--fs-base);
  font-weight: 400;
  line-height: 1.6;
  color: var(--text-secondary);
}

.about__secondary {
  margin-top: var(--space-4);
  color: var(--text-secondary);
  font-size: var(--fs-lg);
  line-height: 1.6;
}

.panel__scroll p a {
  color: var(--text-primary);
  text-decoration: underline;
  text-decoration-color: var(--border-primary);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
  transition: text-decoration-color var(--dur-fast) var(--ease-out);
}

.panel__scroll p a:hover,
.panel__scroll p a:focus-visible {
  text-decoration-color: currentColor;
}

.side-project {
  display: block;
  padding: var(--space-6);
  text-decoration: none;
}

.side-project__eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

.side-project__head {
  margin-top: var(--space-3);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}

.side-project__icon {
  display: block;
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-primary);
  background: var(--surface);
  object-fit: cover;
}

.side-project__handle {
  flex: 1 0 auto;
  min-width: 0;
  font-size: var(--fs-lg);
  font-weight: 600;
  color: var(--text-primary);
  overflow-wrap: anywhere;
}

.side-project__cta {
  flex-shrink: 0;
  margin-left: auto;
}

.side-project__cta svg {
  color: var(--text-tertiary);
}

.side-project__cta:hover,
.side-project:focus-visible .side-project__cta {
  background: var(--surface-strong-2);
}

.side-project__cta:hover svg,
.side-project:focus-visible .side-project__cta svg {
  color: var(--text-primary);
}

.side-project__blurb {
  display: block;
  margin-top: var(--space-3);
  word-break: keep-all;
  font-size: var(--fs-base);
  line-height: 1.6;
  color: var(--text-secondary);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  height: 2.25rem;
  padding-inline: var(--space-4);
  border-radius: var(--radius-sm);
  background: var(--surface);
  border: 1px solid var(--border-primary);
  box-shadow: var(--shadow-card);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-primary);
  transition: background var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}

.btn:hover {
  background: var(--surface-strong);
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn--icon {
  width: 2.25rem;
  padding-inline: 0;
}

.about__fields {
  margin-top: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.about__field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.about__field-head {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.about__field-label {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  font-weight: 400;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

.about__field-rule {
  flex: 1;
  border-top: 1px dotted var(--border-primary);
}

.about__field-value {
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.375;
}

.work-panel__scroll {
  display: flex;
  flex-direction: column;
}

.work-panel__thumb {
  flex-shrink: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-secondary);
  aspect-ratio: 16 / 10;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--surface);
  background-image: linear-gradient(to right, var(--border-secondary) 1px, transparent 1px),
    linear-gradient(to bottom, var(--border-secondary) 1px, transparent 1px);
  background-size: 22px 22px;
}

.work-panel__thumb-icon {
  position: relative;
  width: 40%;
  max-width: 96px;
  aspect-ratio: 4 / 5;
}

.work-panel__thumb-icon span {
  position: absolute;
  inset: 8% 14%;
  border: 1.5px solid var(--border-primary);
  border-radius: 8px;
  background: var(--surface);
}

.work-panel__thumb-icon span:nth-child(1) {
  transform: rotate(-15deg) translate(-12%, 2%);
}

.work-panel__thumb-icon span:nth-child(2) {
  transform: rotate(9deg) translate(10%, -1%);
}

.work-panel__thumb-icon span:nth-child(3)::before {
  content: "";
  position: absolute;
  top: 16%;
  bottom: 16%;
  left: 24%;
  border-left: 1.5px dashed var(--border-primary);
}

.work-panel__cover {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.work-panel__cover--bleed {
  object-fit: cover;
  object-position: center top;
}

.work-panel__thumb:has(.work-panel__cover) {
  background-image: none;
  background-color: var(--surface-strong);
}

.work-panel__title {
  flex-shrink: 0;
  margin-top: var(--space-4);
  font-size: var(--fs-lg);
  font-weight: 600;
  color: var(--text-primary);
}

.work-panel__desc {
  margin-top: var(--space-3);
  word-break: keep-all;
  color: var(--text-secondary);
  font-size: var(--fs-base);
  line-height: 1.6;
}

.work-panel__foot,
.about-panel__foot {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--border-secondary);
  background: var(--surface);
}

.work-panel__foot {
  justify-content: space-between;
}

.about-panel__foot {
  gap: var(--space-2);
}

.work-panel__label {
  min-width: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

.work-panel__foot .btn {
  flex-shrink: 0;
}

.project-viewer {
  display: none;
  position: fixed;
  inset: var(--space-8);
  width: auto;
  height: auto;
  max-width: none;
  max-height: none;
  margin: 0;
  padding: 0;
  border: none;
  background: none;
  overflow: hidden;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
}

.project-viewer[open] {
  display: flex;
}

.project-viewer__stage {
  position: relative;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
}

.project-viewer__stage:fullscreen {
  width: 100vw;
  height: 100vh;
}

@media (max-width: 47.9375rem) {
  .project-viewer {
    inset: var(--space-4);
  }
}

.project-viewer::backdrop {
  background: rgb(0 0 0 / 0.55);
}

.project-viewer:focus,
.project-viewer:focus-visible {
  outline: none;
}

.project-viewer__main {
  position: relative;
  flex: 0 0 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-lg);
}

.project-viewer__stage:fullscreen .project-viewer__main {
  border: none;
  border-radius: 0;
  box-shadow: none;
}

.project-viewer__stage:fullscreen .project-viewer__panel {
  position: absolute;
  z-index: 1;
}

.project-viewer__panel {
  display: none;
  flex-shrink: 0;
  width: 320px;
  max-width: 40vw;
  flex-direction: column;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.project-viewer__panel:not([hidden]) {
  display: flex;
}

.project-viewer__panel-head {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border-secondary);
  font-size: var(--fs-sm);
  font-weight: 600;
}

.project-viewer__panel-body {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}

.project-viewer__panel-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  text-align: center;
}

.project-viewer__panel-empty-title {
  font-size: var(--fs-base);
  font-weight: 600;
  color: var(--text-primary);
}

.project-viewer__panel-empty-sub {
  max-width: 220px;
  word-break: keep-all;
  font-size: var(--fs-sm);
  line-height: 1.5;
  color: var(--text-tertiary);
}

.project-viewer__panel-foot {
  flex-shrink: 0;
  padding: var(--space-3);
  border-top: 1px solid var(--border-secondary);
}

.project-viewer__panel-input {
  display: block;
  width: 100%;
  height: 2.75rem;
  min-height: 2.75rem;
  max-height: 7.5rem;
  padding: calc((2.75rem - 2px - 1.5em) / 2) var(--space-3);
  resize: none;
  overflow-y: auto;
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  background: var(--surface);
  color: var(--text-primary);
  font: inherit;
  font-size: var(--fs-sm);
  line-height: 1.5;
}

.project-viewer__panel-input::placeholder {
  color: var(--text-tertiary);
}

.project-viewer__panel-input:focus,
.project-viewer__contact-input:focus {
  outline: none;
  border-color: var(--border-focus);
}

.project-viewer__panel-input:disabled {
  cursor: not-allowed;
}

.project-viewer__panel-empty[hidden],
.project-viewer__panel-log[hidden],
.project-viewer__panel-notice[hidden] {
  display: none;
}

.project-viewer__panel-log {
  align-self: flex-start;
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.project-viewer__msg {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  font-size: var(--fs-sm);
  line-height: 1.6;
  color: var(--text-primary);
  word-break: keep-all;
  overflow-wrap: anywhere;
}

.project-viewer__msg--user {
  align-self: flex-end;
  max-width: 85%;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  background: var(--surface-strong);
}

.project-viewer__msg--user p {
  white-space: pre-wrap;
}

.project-viewer__msg--loading {
  flex-direction: row;
  align-items: center;
  color: var(--text-tertiary);
}

.project-viewer__spinner {
  flex: none;
  animation: project-viewer-spin 0.8s linear infinite;
}

.project-viewer__thinking {
  display: grid;
  min-width: 0;
  overflow: hidden;
}

.project-viewer__thinking-line {
  grid-area: 1 / 1;
  white-space: nowrap;
}

.project-viewer__thinking-line.is-current {
  animation: project-viewer-thinking-in 480ms var(--ease-out) both;
}

.project-viewer__thinking-line.is-leaving {
  animation: project-viewer-thinking-out 480ms var(--ease-out) both;
}

@keyframes project-viewer-thinking-in {
  from {
    opacity: 0;
    transform: translateY(0.5em);
  }
}

@keyframes project-viewer-thinking-out {
  to {
    opacity: 0;
    transform: translateY(-0.5em);
  }
}

.project-viewer__sources li {
  animation: project-viewer-source-in 360ms var(--ease-out) both;
}

.project-viewer__sources li:nth-child(2) { animation-delay: 60ms; }
.project-viewer__sources li:nth-child(3) { animation-delay: 120ms; }
.project-viewer__sources li:nth-child(n + 4) { animation-delay: 180ms; }

@keyframes project-viewer-source-in {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
}

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

@media (prefers-reduced-motion: reduce) {
  .project-viewer__spinner {
    animation-duration: 2.4s;
  }

  .project-viewer__thinking-line.is-current,
  .project-viewer__sources li {
    animation: none;
  }
}

.project-viewer__msg--error {
  align-items: flex-start;
  color: var(--text-secondary);
}

.project-viewer__sources {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin: 0;
  padding: 0;
  list-style: none;
}

.project-viewer__source {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
  padding: var(--space-1) var(--space-2);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text-secondary);
  font-size: var(--fs-xs);
  text-align: left;
  transition: background var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}

.project-viewer__source:hover {
  background: var(--surface-strong);
}

.project-viewer__source:active {
  background: var(--surface-strong-2);
}

.project-viewer__source-num {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.25rem;
  height: 1.25rem;
  padding-inline: var(--space-1);
  border-radius: var(--radius-pill);
  background: var(--badge-bubble);
  color: var(--text-primary);
  font-family: var(--font-mono);
}

.project-viewer__source-text {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.project-viewer__panel-notice {
  margin-bottom: var(--space-2);
  font-size: var(--fs-xs);
  line-height: 1.5;
  color: var(--text-tertiary);
}

.project-viewer__panel-form {
  display: flex;
  align-items: flex-end;
  gap: var(--space-2);
}

.project-viewer__panel-form .project-viewer__panel-input {
  flex: 1;
  min-width: 0;
}

.project-viewer__panel-reference {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
  padding: var(--space-1) var(--space-1) var(--space-1) var(--space-3);
  border: 1px solid var(--border-primary);
  border-left: 3px solid var(--text-tertiary);
  border-radius: var(--radius-sm);
  background: var(--surface-strong);
  font-size: var(--fs-xs);
  color: var(--text-secondary);
}

.project-viewer__panel-reference[hidden] {
  display: none;
}

.project-viewer__panel-reference-text {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.project-viewer__panel-reference-remove {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: var(--radius-sm);
  color: var(--text-tertiary);
  transition: background var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}

.project-viewer__panel-reference-remove:hover {
  background: var(--surface-strong-2);
  color: var(--text-primary);
}

.project-viewer__msg-reference {
  display: block;
  padding-left: var(--space-2);
  border-left: 2px solid var(--border-primary);
  font-size: var(--fs-xs);
  line-height: 1.5;
  color: var(--text-tertiary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.project-viewer__msg-actions {
  display: flex;
}

.project-viewer__contact-toggle {
  height: 2rem;
  padding-inline: var(--space-3);
  font-size: var(--fs-xs);
}

.project-viewer__contact-toggle[aria-expanded="true"] {
  background: var(--surface-strong);
}

.project-viewer__contact {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  background: var(--surface);
}

.project-viewer__contact-title {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--text-primary);
}

.project-viewer__contact-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  font-size: var(--fs-xs);
  color: var(--text-secondary);
}

.project-viewer__contact-input {
  width: 100%;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text-primary);
  font: inherit;
  font-size: var(--fs-sm);
  line-height: 1.5;
  resize: none;
}

.project-viewer__contact-input[aria-invalid="true"] {
  border-color: var(--text-secondary);
}

.project-viewer__contact-note,
.project-viewer__contact-status,
.project-viewer__contact-done {
  font-size: var(--fs-xs);
  line-height: 1.5;
  color: var(--text-tertiary);
}

.project-viewer__contact-status {
  color: var(--text-secondary);
}

.project-viewer__contact-status:empty {
  display: none;
}

.project-viewer__contact-send {
  align-self: flex-end;
  height: 2rem;
  font-size: var(--fs-xs);
}

.project-viewer__contact-send:disabled {
  opacity: 0.6;
  cursor: progress;
}

.project-viewer__selection-action,
.project-viewer__selection-hint {
  position: fixed;
  z-index: 10;
  box-shadow: var(--shadow-lg);
}

.project-viewer__selection-action {
  height: 2rem;
  padding-inline: var(--space-3);
  font-size: var(--fs-xs);
}

.project-viewer__selection-hint {
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-pill);
  background: var(--surface);
  font-size: var(--fs-xs);
  color: var(--text-secondary);
  pointer-events: none;
}

.project-viewer__selection-action[hidden],
.project-viewer__selection-hint[hidden] {
  display: none;
}

.project-viewer__panel-send {
  flex: none;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius-md);
}

@media (max-width: 47.9375rem) {
  .project-viewer__panel,
  .project-viewer__panel:not([hidden]) {
    display: none;
  }
  [data-ask-ai-project],
  .project-viewer__selection-action,
  .project-viewer__selection-hint {
    display: none;
  }
}

.project-viewer__header {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border-secondary);
}

.project-viewer__title {
  min-width: 0;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-primary);
}

.project-viewer__actions {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.project-viewer__action svg {
  flex-shrink: 0;
}

@media (max-width: 30rem) {
  .project-viewer__action span {
    display: none;
  }
  .project-viewer__action {
    width: 2.25rem;
    padding-inline: 0;
  }
}

.project-viewer__divider {
  width: 1px;
  height: 1.25rem;
  background: var(--border-primary);
}

.project-viewer__body {
  flex: 1;
  min-height: 0;
  overflow: auto;
  display: flex;
}

.project-viewer__slide {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.case-study-canvas {
  flex-shrink: 0;
  transform-origin: center center;
  word-break: keep-all;
  overflow-wrap: normal;
  text-wrap: pretty;
}

.case-study-canvas > section {
  width: 100%;
  height: 100%;
  box-sizing: border-box;
}

::highlight(rag-source) {
  background-color: var(--source-highlight);
  color: var(--text-primary);
}

.case-study-canvas .is-source-block {
  outline: 4px solid var(--source-highlight-edge);
  outline-offset: 8px;
}

.case-study-canvas.is-source-slide {
  outline: 8px solid var(--source-highlight-edge);
  outline-offset: -8px;
}

.proto-link {
  color: #3fa3e8;
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: opacity var(--dur-fast) var(--ease-out);
}
.proto-link:hover {
  opacity: 0.75;
}
.proto-link:focus-visible {
  outline: 2px solid #3fa3e8;
  outline-offset: 3px;
}

.video-play-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 84px;
  height: 84px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 0;
  transition: transform 0.15s ease;
}
.video-play-button:hover {
  transform: translate(-50%, -50%) scale(1.06);
}
.video-play-button:focus-visible {
  outline: 3px solid #3fa3e8;
  outline-offset: 3px;
}
@media (prefers-reduced-motion: reduce) {
  .video-play-button { transition: none; }
}

.project-viewer__nav {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid var(--border-secondary);
}

.project-viewer__page {
  min-width: 2.75rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
}

.pptx-slide {
  flex: 1;
  min-width: 0;
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius-md);
  background: var(--surface);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.pptx-slide--cover {
  flex-direction: row;
  align-items: center;
  gap: var(--space-8);
  background: var(--pptx-cover-bg);
  border-color: var(--pptx-cover-bg);
}

@media (max-width: 47.9375rem) {
  .pptx-slide--cover {
    flex-direction: column;
    align-items: stretch;
  }
}

.pptx-cover__text {
  flex: 1.1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-8);
  align-self: stretch;
}

.pptx-cover__media {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pptx-cover__media img {
  max-width: 100%;
  max-height: 60vh;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}

@media (max-width: 47.9375rem) {
  .pptx-cover__media {
    order: -1;
  }
}

.pptx-slide__eyebrow {
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--pptx-accent);
}

.pptx-slide--cover .pptx-slide__eyebrow {
  font-size: clamp(2.5rem, 6vw, 3.75rem);
  font-weight: 300;
  letter-spacing: 0;
  text-transform: none;
  line-height: 1;
  color: rgb(26 26 26 / 0.28);
}

.pptx-slide__title {
  font-size: clamp(1.625rem, 2.8vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.2;
  color: var(--text-primary);
}

.pptx-slide--cover .pptx-slide__title {
  max-width: 32ch;
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  letter-spacing: -0.02em;
  color: var(--pptx-cover-fg);
}

.pptx-accent {
  color: var(--pptx-accent);
}

.pptx-accent-warm {
  color: var(--pptx-accent-warm);
}

.pptx-slide__body {
  max-width: 64ch;
  color: var(--text-secondary);
  font-size: var(--fs-base);
  line-height: 1.7;
}

.pptx-slide__body + .pptx-slide__body {
  margin-top: var(--space-3);
}

.pptx-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4) var(--space-8);
}

.pptx-meta__group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.pptx-meta__label {
  font-size: var(--fs-xs);
  color: rgb(26 26 26 / 0.5);
}

.pptx-meta__value {
  color: rgb(26 26 26 / 0.85);
  font-size: var(--fs-sm);
  line-height: 1.6;
}

.pptx-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: start;
}

@media (max-width: 47.9375rem) {
  .pptx-split {
    grid-template-columns: 1fr;
  }
}

.pptx-media {
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pptx-media__caption {
  margin-top: var(--space-2);
  text-align: center;
  color: var(--text-tertiary);
  font-size: var(--fs-xs);
}

.pptx-split--narrow {
  grid-template-columns: minmax(180px, 1fr) 2fr;
}

@media (max-width: 47.9375rem) {
  .pptx-split--narrow {
    grid-template-columns: 1fr;
  }
}

.pptx-media img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}

.pptx-media--auto {
  aspect-ratio: auto;
  display: block;
}

.pptx-media--auto img {
  height: auto;
}

.pptx-grid {
  display: grid;
  grid-template-columns: repeat(var(--pptx-grid-cols, 2), 1fr);
  gap: var(--space-4);
}

@media (max-width: 47.9375rem) {
  .pptx-grid {
    grid-template-columns: 1fr;
  }
}

.pptx-card {
  border-radius: var(--radius-md);
  background: var(--surface-strong);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.pptx-card__label {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
}

.pptx-card__title {
  font-size: var(--fs-base);
  font-weight: 600;
  color: var(--text-primary);
}

.pptx-card__body {
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  line-height: 1.6;
}

.pptx-card__quote {
  margin-top: auto;
  padding-top: var(--space-2);
  color: var(--text-primary);
  font-size: var(--fs-sm);
  font-weight: 600;
  line-height: 1.5;
}

.pptx-columns {
  display: grid;
  grid-template-columns: repeat(var(--pptx-grid-cols, 3), 1fr);
  gap: var(--space-6);
}

@media (max-width: 47.9375rem) {
  .pptx-columns {
    grid-template-columns: 1fr;
  }
}

.pptx-column__title {
  font-size: var(--fs-base);
  font-weight: 600;
  color: var(--text-primary);
}

.pptx-column__body {
  margin-top: var(--space-2);
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  line-height: 1.6;
}

.pptx-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.pptx-list__item {
  position: relative;
  padding-left: var(--space-6);
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  line-height: 1.6;
}

.pptx-list__item::before {
  content: "+";
  position: absolute;
  left: 0;
  font-weight: 700;
  color: var(--pptx-accent);
}

.pptx-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

@media (max-width: 47.9375rem) {
  .pptx-compare {
    grid-template-columns: 1fr;
  }
}

.pptx-compare__col {
  border-radius: var(--radius-md);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  background: var(--surface-strong);
}

.pptx-compare__col--to {
  background: var(--surface-strong);
  box-shadow: inset 0 0 0 1.5px var(--pptx-accent);
}

.pptx-compare__label {
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

.pptx-compare__col--to .pptx-compare__label {
  color: var(--pptx-accent);
}

.pptx-compare__stat {
  font-size: var(--fs-lg);
  font-weight: 600;
  color: var(--text-primary);
}

.pptx-compare__note {
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  line-height: 1.6;
}

.pptx-steps {
  display: flex;
  align-items: stretch;
  gap: var(--space-2);
}

@media (max-width: 47.9375rem) {
  .pptx-steps {
    flex-direction: column;
  }
}

.pptx-step {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.pptx-step__label {
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--pptx-accent);
}

.pptx-step .pptx-media {
  aspect-ratio: 3 / 4;
  max-height: 24vh;
}

.pptx-step__arrow {
  flex-shrink: 0;
  align-self: center;
  color: var(--border-primary);
}

@media (max-width: 47.9375rem) {
  .pptx-step__arrow {
    transform: rotate(90deg);
  }
}

.pptx-results {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.pptx-result {
  display: flex;
  gap: var(--space-3);
}

.pptx-result__arrow {
  flex-shrink: 0;
  color: var(--text-tertiary);
}

.pptx-result__title {
  font-size: var(--fs-base);
  font-weight: 600;
  color: var(--text-primary);
}

.pptx-result__body {
  margin-top: var(--space-1);
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  line-height: 1.6;
}

.pptx-stat-pair {
  display: flex;
  align-items: stretch;
  gap: var(--space-4);
}

.pptx-stat {
  flex: 1;
  min-width: 0;
  border-radius: var(--radius-md);
  background: var(--pptx-stat-bg);
  padding: var(--space-6) var(--space-4);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  text-align: center;
}

.pptx-stat__value {
  font-weight: 800;
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.01em;
  line-height: 1;
  color: #fff;
}

.pptx-stat__label {
  font-size: var(--fs-xs);
  line-height: 1.5;
  color: rgb(255 255 255 / 0.65);
}

.pptx-stat-pair__arrow {
  flex-shrink: 0;
  align-self: center;
  color: var(--text-tertiary);
}

.pptx-pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.pptx-pill {
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-pill);
  font-size: var(--fs-sm);
  color: var(--text-primary);
}

.pptx-divider {
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
  background: var(--pptx-divider-bg);
  border-color: var(--pptx-divider-bg);
}

@media (max-width: 47.9375rem) {
  .pptx-divider {
    flex-direction: column;
    align-items: flex-start;
  }
}

.pptx-divider__content {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-width: 32ch;
}

.pptx-divider .pptx-slide__eyebrow {
  color: var(--pptx-accent);
}

.pptx-divider .pptx-slide__title {
  color: #fff;
}

.pptx-divider .pptx-slide__body {
  max-width: none;
  color: rgb(255 255 255 / 0.55);
}

.pptx-divider__numeral {
  flex-shrink: 0;
  font-weight: 800;
  font-size: clamp(4rem, 12vw, 8rem);
  line-height: 1;
  color: rgb(255 255 255 / 0.92);
}

.pptx-stat-card {
  border-radius: var(--radius-md);
  background: var(--pptx-stat-bg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  justify-content: center;
  text-align: center;
}

.pptx-stat-card__value {
  font-weight: 800;
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  line-height: 1;
  letter-spacing: -0.01em;
  color: #fff;
}

.pptx-stat-card__label {
  color: rgb(255 255 255 / 0.65);
  font-size: var(--fs-sm);
  line-height: 1.5;
}

.pptx-card--dark {
  background: var(--pptx-stat-bg);
}

.pptx-card--dark .pptx-card__label {
  color: rgb(255 255 255 / 0.5);
}

.pptx-card--dark .pptx-card__title {
  color: #fff;
}

.pptx-card--dark .pptx-card__body {
  color: rgb(255 255 255 / 0.65);
}

.signin {
  width: min(26rem, calc(100vw - 2 * var(--space-4)));
  max-width: none;
  padding: var(--space-12) 2.5rem;
  background: var(--surface);
  color: var(--text-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-halo);
  overflow: visible;
  text-align: center;
  word-break: keep-all;
}

.signin::backdrop {
  background: rgb(0 0 0 / 0.55);
}

.signin:focus {
  outline: none;
}

.signin__mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  margin: 0 auto var(--space-6);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-sm);
}

.signin__title {
  margin-bottom: var(--space-2);
  font-size: var(--fs-lg);
  font-weight: 600;
}

.signin__lead {
  font-size: var(--fs-base);
  line-height: 1.6;
  color: var(--text-secondary);
}

.signin__input {
  display: block;
  width: 100%;
  height: 2.75rem;
  margin-top: var(--space-8);
  padding: 0 0.875rem;
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text-primary);
  font: inherit;
  font-size: var(--fs-base);
}

.signin__input::placeholder {
  color: var(--text-tertiary);
}

.signin__input:focus {
  outline: none;
  border-color: var(--border-focus);
}

.signin__input[aria-invalid="true"] {
  border-color: var(--text-secondary);
}

.signin__error {
  margin-top: var(--space-2);
  font-size: var(--fs-xs);
  line-height: 1.5;
  color: var(--destructive);
  text-align: left;
}

.signin__error:empty {
  display: none;
}

.signin__submit {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 2.75rem;
  margin-top: var(--space-3);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-sm);
  background: var(--surface);
  box-shadow: var(--shadow-card);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-primary);
  transition: background var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}

.signin__submit:hover:not(:disabled) {
  background: var(--surface-strong);
  transform: translateY(-2px);
}

.signin__submit:active:not(:disabled) {
  transform: translateY(0);
}

.signin__submit:disabled {
  opacity: 0.5;
  cursor: progress;
}

@media (max-width: 30rem) {
  .signin {
    padding: 2.5rem var(--space-6);
  }
}

@media (prefers-reduced-motion: reduce) {
  .signin__submit {
    transition: none;
  }

  .signin__submit:hover:not(:disabled) {
    transform: none;
  }
}