:root {
  --background: #131313;
  --surface: #131313;
  --surface-low: #1c1b1b;
  --surface-container: #20201f;
  --surface-variant: #353535;
  --outline: #999078;
  --outline-variant: #4d4632;
  --text: #e5e2e1;
  --text-muted: #d0c6ac;
  --accent: #ecc600;
  --accent-bright: #ffe480;
  --accent-ink: #221b00;
  --ok: #7bd29a;
  --error: #ffb4ab;
  --font-body: "Work Sans", "Inter", "Segoe UI", sans-serif;
  --font-display: "Space Grotesk", "Inter", sans-serif;
  --container: 1440px;
  --ease: 150ms ease;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background: var(--background);
  color: var(--text);
  font-family: var(--font-body);
  overflow-x: hidden;
}

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

button,
input,
textarea,
select {
  font: inherit;
}

.container {
  width: min(var(--container), calc(100% - 64px));
  margin: 0 auto;
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: #000;
  border-bottom: 2px solid var(--accent);
}

.nav-shell {
  min-height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav-brand {
  display: inline-flex;
  align-items: center;
}

.nav-logo {
  display: block;
  width: auto;
  height: 44px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 40px;
  list-style: none;
}

.nav-links a {
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: -0.03em;
  text-transform: uppercase;
  transition: color var(--ease);
}

.nav-links a:hover {
  color: var(--accent);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border: 2px solid var(--outline-variant);
  background: #000;
  color: var(--text);
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.btn,
.primary-button,
.ghost-button,
.preview-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--accent);
  background: #000;
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  text-transform: uppercase;
  transition:
    background var(--ease),
    color var(--ease),
    transform var(--ease),
    box-shadow var(--ease);
  cursor: pointer;
}

.btn:hover,
.primary-button:hover,
.ghost-button:hover,
.preview-action:hover {
  background: var(--accent);
  color: #000;
}

.btn {
  padding: 12px 24px;
}

.btn-primary,
.primary-button {
  background: var(--accent);
  color: var(--accent-ink);
  box-shadow: 4px 4px 0 0 rgba(236, 198, 0, 1);
}

.btn-primary:hover,
.primary-button:hover {
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 0 rgba(236, 198, 0, 1);
}

.btn-secondary,
.ghost-button,
.preview-action {
  background: #000;
  color: var(--text);
  border-color: var(--accent);
}

.hero {
  min-height: 1024px;
  padding: 128px 32px 80px;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: #000;
}

.hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 50%;
  height: 80%;
  opacity: 0.16;
  background:
    linear-gradient(135deg, rgba(236, 198, 0, 0.28), transparent 34%),
    linear-gradient(180deg, transparent, rgba(236, 198, 0, 0.12)),
    linear-gradient(315deg, rgba(255, 255, 255, 0.08), transparent 32%);
  pointer-events: none;
}

.hero-shell {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 32px;
  width: 100%;
}

.hero-copy {
  grid-column: span 7;
}

.section-kicker {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-copy h1,
.section-heading h2,
.proof-item strong,
.dropzone-title,
.progress-head strong {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
}

.hero-copy h1 {
  font-size: clamp(3.8rem, 8vw, 7.5rem);
  line-height: 0.92;
  letter-spacing: -0.04em;
  margin-bottom: 32px;
  color: #fff;
}

.hero-copy h1 .accent-word {
  color: var(--accent);
}

.hero-copy p,
.section-heading p,
.helper-text,
.dropzone-copy,
.upload-help,
.preview-meta,
.progress-meta,
.result-card,
.status-banner,
.hero-panel-copy {
  color: var(--text-muted);
  line-height: 1.65;
}

.hero-copy p {
  max-width: 44rem;
  font-size: 1.25rem;
  margin-bottom: 48px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}

.hero-proof {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 44px;
}

.proof-item,
.hero-panel,
.app-card,
.dropzone-card,
.preview-tile,
.progress-card,
.result-card {
  background: var(--surface-low);
  border: 2px solid var(--outline-variant);
}

.proof-item,
.hero-panel,
.app-card,
.dropzone-card,
.progress-card {
  padding: 24px;
}

.proof-item strong {
  display: block;
  font-size: 1rem;
  margin-bottom: 8px;
  color: #fff;
}

.proof-item span {
  color: var(--text-muted);
  line-height: 1.6;
}

.hero-panel {
  grid-column: 9 / span 4;
  align-self: start;
}

.hero-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}

.hero-panel-label {
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-panel-logo {
  display: block;
  width: 180px;
  height: auto;
}

.hero-panel-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 4.8vw, 4rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 18px;
}

.hero-list {
  list-style: none;
  display: grid;
  gap: 12px;
  margin-top: 20px;
}

.hero-list li {
  display: flex;
  gap: 10px;
  color: var(--text);
  line-height: 1.55;
}

.hero-list li::before {
  content: "■";
  color: var(--accent);
  font-size: 0.8rem;
  line-height: 1.5;
}

.section {
  padding: 128px 32px;
  background: var(--surface);
}

.section-heading {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 48px;
  border-bottom: 2px solid var(--outline-variant);
  padding-bottom: 24px;
}

.section-heading h2 {
  font-size: clamp(3rem, 6vw, 4.8rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
  color: #fff;
}

.app-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.9fr) minmax(340px, 0.95fr);
  gap: 28px;
  align-items: start;
}

.app-card {
  padding: 28px;
}

.workspace-form {
  width: 100%;
}

.subject-card,
.uploads-card,
.result-panel {
  min-width: 0;
}

.compact-heading {
  margin-bottom: 28px;
}

.compact-heading h2 {
  font-size: clamp(2.5rem, 4vw, 3.8rem);
}

.compact-heading p {
  max-width: none;
}

.grid {
  display: grid;
  gap: 16px;
}

.two-col {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.full-width {
  grid-column: 1 / -1;
}

label {
  display: grid;
  gap: 10px;
}

label span,
.checkbox-group > span {
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

input,
textarea,
select {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--surface-variant);
  background: var(--surface-container);
  color: var(--text);
  border-radius: 0;
}

input::placeholder,
textarea::placeholder {
  color: #9b9177;
}

textarea {
  resize: vertical;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent);
}

.checkbox-group {
  display: grid;
  gap: 12px;
  padding: 18px;
  border: 2px solid var(--outline-variant);
  background: var(--surface-container);
}

.check-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
}

.check-item input {
  width: auto;
  accent-color: var(--accent);
}

.upload-stack {
  display: grid;
  gap: 18px;
}

.dropzone-card {
  display: grid;
  gap: 12px;
}

.dropzone {
  padding: 28px;
  border: 2px dashed var(--accent);
  background: #000;
  text-align: center;
  transition:
    background var(--ease),
    color var(--ease),
    transform var(--ease);
}

.dropzone:hover,
.dropzone.is-active {
  background: var(--surface-container);
  transform: translate(-2px, -2px);
}

.dropzone-title {
  font-size: 1.25rem;
  color: #fff;
  margin-bottom: 8px;
}

.dropzone-copy {
  margin: 0 auto 18px;
  max-width: 48ch;
}

.upload-help {
  font-size: 0.9rem;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(132px, 1fr));
  gap: 12px;
}

.preview-grid.single-preview {
  grid-template-columns: minmax(0, 220px);
}

.preview-tile {
  position: relative;
  display: grid;
  overflow: hidden;
}

.preview-order {
  position: absolute;
  top: 8px;
  left: 8px;
  z-index: 1;
  min-width: 34px;
  padding: 4px 8px;
  background: var(--accent);
  color: #000;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-align: center;
}

.preview-tile img {
  display: block;
  width: 100%;
  height: 120px;
  object-fit: cover;
}

.preview-meta {
  padding: 10px;
  font-size: 0.82rem;
}

.preview-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0 10px 10px;
}

.preview-action {
  padding: 7px 10px;
  font-size: 0.75rem;
}

.preview-action:disabled {
  opacity: 0.36;
  cursor: not-allowed;
}

.preview-delete {
  border-color: #ff8d7e;
  color: #ffdad6;
}

.actions {
  margin-top: 24px;
  display: grid;
  gap: 12px;
}

.helper-text {
  font-size: 0.96rem;
}

.status-banner {
  margin-bottom: 14px;
  padding: 14px;
  border: 2px solid var(--outline-variant);
  background: var(--surface-container);
}

.status-banner.error {
  border-color: #93000a;
  color: var(--error);
}

.status-banner.info {
  border-color: #5b8f6d;
  color: var(--ok);
}

.progress-card {
  margin-bottom: 14px;
}

.progress-card.is-stalled {
  border-color: #93000a;
}

.progress-card.is-waiting {
  border-color: var(--accent);
}

.progress-head,
.progress-meta,
.progress-actions,
.download-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.progress-head {
  margin-bottom: 14px;
}

.progress-head strong,
.progress-percent {
  color: #fff;
  font-size: 1rem;
}

.progress-track {
  position: relative;
  width: 100%;
  height: 12px;
  margin-bottom: 14px;
  background: #000;
  border: 1px solid var(--outline-variant);
}

.progress-fill {
  position: absolute;
  inset: 0 auto 0 0;
  background: var(--accent);
}

.progress-meta {
  align-items: flex-start;
  font-size: 0.88rem;
}

.progress-actions {
  margin-top: 16px;
  justify-content: flex-end;
}

.download-actions {
  flex-wrap: wrap;
  justify-content: flex-start;
  margin-bottom: 14px;
}

.result-card {
  min-height: 460px;
  padding: 22px;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.result-card.empty-state {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.result-card p {
  color: var(--text-muted);
}

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
  background: #000;
}

.login-card {
  width: min(100%, 620px);
  padding: 42px 36px;
  background: var(--surface-low);
  border: 2px solid var(--outline-variant);
  text-align: center;
}

.login-logo {
  display: block;
  width: min(420px, 100%);
  height: auto;
  margin: 0 auto 22px;
}

.login-kicker {
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.login-title {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 6vw, 4.5rem);
  line-height: 0.94;
  letter-spacing: -0.04em;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 16px;
}

.login-copy {
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 24px;
}

.login-form {
  display: grid;
  gap: 18px;
  text-align: left;
}

.login-error {
  margin: 0 0 20px;
  padding: 14px;
  border: 2px solid #93000a;
  background: var(--surface-container);
  color: var(--error);
  text-align: left;
}

.login-submit {
  width: 100%;
  margin-top: 6px;
}

@media (max-width: 1380px) {
  .app-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .result-panel {
    grid-column: 1 / -1;
  }
}

@media (max-width: 1180px) {
  .hero-shell,
  .app-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy,
  .hero-panel {
    grid-column: auto;
  }

  .result-panel {
    grid-column: auto;
  }
}

@media (max-width: 900px) {
  .container {
    width: min(var(--container), calc(100% - 32px));
  }

  .nav-shell {
    min-height: auto;
    flex-wrap: wrap;
    justify-content: center;
    padding: 18px 0;
  }

  .nav-links {
    order: 3;
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
    gap: 18px;
  }

  .nav-actions {
    flex-wrap: wrap;
    justify-content: center;
  }

  .hero-proof,
  .two-col {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(var(--container), calc(100% - 24px));
  }

  .hero,
  .section {
    padding-left: 12px;
    padding-right: 12px;
  }

  .hero-copy h1,
  .section-heading h2,
  .hero-panel-title {
    font-size: clamp(2.5rem, 14vw, 4.2rem);
  }

  .hero-actions,
  .download-actions,
  .progress-meta {
    flex-direction: column;
    align-items: stretch;
  }

  .btn,
  .primary-button,
  .ghost-button {
    width: 100%;
  }
}