/* SITE-DESIGN-SYSTEM-1 — shared brand / layout / components */

:root {
  /* layout */
  --sz-page-max: 1040px;
  --sz-utility-max: 1120px;
  --sz-page-wide: 1180px;
  --sz-page-narrow: 860px;
  --sz-pad-x: clamp(22px, 5vw, 48px);
  --sz-section-gap: clamp(44px, 7vh, 92px);
  --sz-block-gap: clamp(22px, 4vh, 42px);
  --content-w: min(var(--sz-page-max), calc(100vw - var(--sz-pad-x) * 2));
  --sz-content: var(--content-w);

  /* colors */
  --sz-bg: #07070b;
  --sz-bg-soft: #0b0b12;
  --sz-text: rgba(245, 245, 244, 0.94);
  --sz-muted: rgba(245, 245, 244, 0.58);
  --sz-faint: rgba(245, 245, 244, 0.36);
  --sz-violet: #b8a7ff;
  --sz-cyan: #8ee7ff;
  --sz-amber: #ffb85c;

  /* surfaces */
  --sz-border: rgba(255, 255, 255, 0.075);
  --sz-border-strong: rgba(255, 255, 255, 0.115);
  --sz-glass: rgba(255, 255, 255, 0.035);
  --sz-glass-strong: rgba(255, 255, 255, 0.055);

  /* legacy aliases (utility pages) */
  --bg: var(--sz-bg);
  --fg: var(--sz-text);
  --muted: var(--sz-muted);
  --line: var(--sz-border-strong);
  --line-soft: var(--sz-border);
  --accent: var(--sz-violet);
  --accent-2: var(--sz-cyan);

  /* radius */
  --sz-radius-card: 24px;
  --sz-radius-panel: 28px;
  --sz-radius-pill: 999px;

  /* shadows */
  --sz-shadow-card: 0 18px 50px rgba(0, 0, 0, 0.22);
  --sz-shadow-panel: 0 24px 80px rgba(0, 0, 0, 0.3);
}

html {
  background: var(--sz-bg);
  color: var(--sz-text);
}

/* —— Page shell —— */
.sz-page-shell,
body.utility-project-page .page.utility-page,
.project-main.tlid-page .page {
  width: var(--content-w);
  max-width: 100%;
  margin-inline: auto;
  padding-top: 10px;
  box-sizing: border-box;
}

body.utility-project-page.itunes-preview-page,
body.tracklist-page {
  --content-w: min(var(--sz-utility-max), calc(100vw - var(--sz-pad-x) * 2));
}

.sz-page-shell.is-narrow,
body.legal-page .legal-header,
body.legal-page .legal-main {
  width: min(var(--sz-page-narrow), calc(100vw - var(--sz-pad-x) * 2));
  max-width: 100%;
}

/* —— Topbar (full width of shell) —— */
.sz-topbar,
.topbar {
  width: 100%;
  max-width: 100%;
  margin: 0;
  padding-top: max(28px, calc(18px + var(--safe-top, env(safe-area-inset-top, 0px))));
  padding-bottom: 22px;
  padding-left: 0;
  padding-right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--sz-border);
  box-sizing: border-box;
}

.sz-brand,
.brand,
.legal-brand {
  color: var(--sz-text);
  font-weight: 900;
  text-decoration: none;
  letter-spacing: -0.06em;
  font-size: 22px;
  line-height: 1;
}

.sz-back,
.back-link {
  color: var(--sz-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
}

.sz-back:hover,
.back-link:hover {
  color: var(--sz-violet);
}

.sz-topbar-actions,
.topbar-auth {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
}

/* —— Utility head (full width of shell) —— */
.sz-tool-head,
.tool-head {
  width: 100%;
  max-width: 100%;
  margin: clamp(34px, 6vh, 72px) 0 0;
  padding: 0;
  box-sizing: border-box;
}

.sz-kicker,
.tool-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--sz-muted);
  font-size: 15px;
  letter-spacing: 0.04em;
  margin: 0;
}

/* UTILITY-TITLE-SCALE-1: task-first utility headings */
.sz-tool-title,
.tool-title {
  margin: 18px 0 0;
  max-width: 980px;
  color: var(--sz-text);
  font-size: clamp(44px, 5vw, 68px);
  line-height: 0.96;
  letter-spacing: -0.07em;
  font-weight: 700;
}

.sz-tool-lead,
.tool-lead {
  margin-top: 22px;
  max-width: 900px;
  color: var(--sz-muted);
  font-size: clamp(19px, 2.2vw, 30px);
  line-height: 1.28;
  letter-spacing: -0.035em;
  font-weight: 500;
}

/* —— Input card (utilities, full width of shell) —— */
.sz-input-card,
.utility-glass-input.input-panel,
.utility-glass-input,
.input-panel.utility-glass-input {
  width: 100%;
  max-width: 100%;
  margin: clamp(28px, 5vh, 48px) 0 0;
  box-sizing: border-box;
}

.sz-input-card .input-panel-surface,
.utility-glass-input .input-panel-surface {
  position: relative;
  overflow: hidden;
  border-radius: var(--sz-radius-card);
  border: 1px solid var(--sz-border);
  padding: 0;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.022)),
    rgba(10, 10, 15, 0.42);
  box-shadow: var(--sz-shadow-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.sz-input-card .input-panel-surface::before,
.utility-glass-input .input-panel-surface::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.03), transparent 42%);
  opacity: 0.45;
  z-index: 0;
}

.sz-input-card .input-panel-inner,
.utility-glass-input .input-panel-inner {
  position: relative;
  z-index: 1;
  border-radius: calc(var(--sz-radius-card) - 1px);
  padding: clamp(14px, 2.5vw, 18px) clamp(14px, 2.5vw, 18px) 6px;
  background: transparent;
}

.sz-input-card .input-panel-surface:focus-within,
.utility-glass-input .input-panel-surface:focus-within,
.drop-zone.is-dragover .input-panel-surface {
  border-color: rgba(184, 167, 255, 0.24);
  box-shadow:
    0 20px 56px rgba(0, 0, 0, 0.24),
    0 0 0 1px rgba(184, 167, 255, 0.14),
    0 0 28px rgba(184, 167, 255, 0.08);
}

/* —— Editor / textarea —— */
.sz-editor,
.tracks-input,
.tlid-textarea,
.utility-glass-input .tracks-input {
  display: block;
  width: 100%;
  min-width: 0;
  min-height: clamp(150px, 24vh, 220px);
  border-radius: 18px;
  border: 1px solid var(--sz-border);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.018)),
    rgba(3, 3, 6, 0.34);
  color: var(--sz-text);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  outline: none;
  resize: vertical;
  padding: 16px 17px;
  font-size: 16px;
  line-height: 1.45;
  letter-spacing: -0.01em;
  caret-color: var(--sz-violet);
}

.sz-editor:focus,
.tracks-input:focus,
.tlid-textarea:focus {
  border-color: rgba(184, 167, 255, 0.34);
  box-shadow:
    0 0 0 1px rgba(184, 167, 255, 0.1),
    0 0 24px rgba(184, 167, 255, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.tracks-input::placeholder,
.tlid-textarea::placeholder {
  color: var(--sz-faint);
}

/* —— Buttons —— */
.sz-primary-button,
.btn-primary,
.tlid-button-primary,
.process-button.btn-primary,
.utility-glass-input .process-button,
.utility-glass-input .btn-primary {
  width: 100%;
  min-height: 52px;
  border-radius: var(--sz-radius-pill);
  padding: 0 22px;
  border: 0;
  color: #050508;
  font-size: 17px;
  font-weight: 850;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #f4f0ff 0%, #b9a8ff 48%, #8ee7ff 100%);
  box-shadow:
    0 10px 28px rgba(142, 231, 255, 0.12),
    0 8px 20px rgba(184, 167, 255, 0.1);
  cursor: pointer;
}

.sz-secondary-button,
.btn-secondary,
.tlid-file-control {
  min-height: 40px;
  padding: 8px 14px;
  border-radius: var(--sz-radius-pill);
  border: 1px solid var(--sz-border);
  background: var(--sz-glass);
  color: rgba(245, 245, 244, 0.7);
  font-size: 14px;
  font-weight: 700;
  box-shadow: none;
}

.utility-process-float {
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  padding: 0;
}

.utility-process-float .process-button,
.utility-process-float .btn-primary,
.utility-process-float .tlid-button-primary {
  margin-top: 0;
}

/* —— Footer shell —— */
.site-footer {
  border-top: 1px solid var(--sz-border);
  color: var(--sz-faint);
  font-size: 13px;
}

.site-footer-inner {
  width: var(--content-w);
  max-width: 100%;
  margin-inline: auto;
}

.site-footer a {
  color: rgba(245, 245, 244, 0.58);
}

.site-footer a:hover {
  color: var(--sz-text);
}

/* —— Homepage projects band —— */
body.home-page .projects {
  width: var(--content-w);
  max-width: 100%;
  margin-left: auto;
  margin-right: auto;
}

body.home-page .hero-copy {
  width: var(--content-w);
  max-width: 100%;
}

/* —— Legal tokens sync —— */
body.legal-page {
  --sz-page-x: var(--sz-pad-x);
  --sz-content: min(var(--sz-page-narrow), calc(100vw - var(--sz-pad-x) * 2));
}

.legal-card {
  border: 1px solid var(--sz-border);
  box-shadow: var(--sz-shadow-card);
}

.legal-card h1 {
  color: var(--sz-text);
}

.legal-content {
  color: var(--sz-muted);
}

/* —— UTILITIES-MOBILE-WORKSPACE-1: secondary below workspace —— */
.utility-secondary-note {
  width: 100%;
  max-width: 100%;
  margin: 16px 0 0;
  color: var(--sz-faint);
  font-size: 14px;
  line-height: 1.45;
  font-weight: 500;
}

.utility-secondary-note a {
  color: rgba(184, 167, 255, 0.88);
  text-decoration: none;
  font-weight: 700;
}

.utility-secondary-note a:hover {
  color: var(--sz-text);
}

.project-main.tlid-page .page {
  display: flex;
  flex-direction: column;
}

body.tracklist-page #inputPanel {
  order: 1;
}

body.tracklist-page .tlid-bot-note.utility-secondary-note {
  order: 2;
}

body.tracklist-page .format-helper-input {
  order: 3;
}

body.tracklist-page #statusMessage {
  order: 5;
}

body.tracklist-page #resultPanel {
  order: 4;
}

body.tracklist-page #formatHelpAfter {
  order: 6;
}

body.tracklist-page.has-result #inputPanel {
  order: 1;
}

body.tracklist-page.has-result #resultPanel {
  order: 2;
}

body.tracklist-page.has-result #formatHelpAfter {
  order: 3;
}

body.tracklist-page.has-result .tlid-bot-note.utility-secondary-note {
  order: 4;
}

body.tracklist-page.has-result .format-helper-input {
  display: none;
}

/* —— SITE-LAYOUT-FINAL-POLISH-1: desktop utility width + rhythm —— */
@media (min-width: 1024px) {
  body.utility-project-page .page.utility-page,
  body.tracklist-page .project-main.tlid-page .page {
    width: min(var(--sz-utility-max), calc(100vw - 96px));
    max-width: 100%;
  }

  body.utility-project-page .sz-input-card,
  body.utility-project-page .utility-glass-input,
  body.tracklist-page .sz-input-card,
  body.tracklist-page .utility-glass-input {
    width: 100%;
    max-width: 100%;
  }

  body.tracklist-page .tool-head {
    margin-top: clamp(44px, 6vh, 72px);
  }

  body.tracklist-page .utility-glass-input,
  body.tracklist-page .input-panel.utility-glass-input {
    margin-top: clamp(28px, 4vh, 46px);
  }

  .sz-tool-title,
  .tool-title {
    font-size: clamp(48px, 4.6vw, 64px);
    line-height: 0.97;
  }

  body.utility-project-page.itunes-preview-page .sz-tool-title,
  body.utility-project-page.itunes-preview-page .tool-title {
    max-width: 920px;
    font-size: clamp(38px, 3.6vw, 50px);
    line-height: 0.97;
    letter-spacing: -0.065em;
  }
}

/* —— Mobile + phone landscape —— */
@media (max-width: 760px),
(orientation: landscape) and (max-height: 520px) {
  .sz-page-shell,
  body.utility-project-page .page.utility-page,
  .project-main.tlid-page .page {
    width: auto;
    max-width: 100%;
    margin-inline: 0;
    padding-left: max(22px, calc(18px + env(safe-area-inset-left, 0px)));
    padding-right: max(22px, calc(18px + env(safe-area-inset-right, 0px)));
  }

  .sz-topbar,
  .topbar,
  .sz-tool-head,
  .tool-head,
  .sz-input-card,
  .utility-glass-input.input-panel,
  .utility-glass-input {
    width: 100%;
    padding-left: 0;
    padding-right: 0;
  }

  .sz-tool-head,
  .tool-head {
    margin-top: clamp(20px, 3.5vh, 28px);
  }

  .sz-tool-title,
  .tool-title {
    font-size: clamp(34px, 8.8vw, 44px);
    line-height: 0.98;
    letter-spacing: -0.065em;
    max-width: 100%;
  }

  body.utility-project-page.itunes-preview-page .sz-tool-title,
  body.utility-project-page.itunes-preview-page .tool-title {
    font-size: clamp(30px, 7.4vw, 38px);
    line-height: 1;
    letter-spacing: -0.06em;
  }

  .sz-tool-lead,
  .tool-lead {
    margin-top: 12px;
    font-size: clamp(17px, 4.45vw, 19px);
    line-height: 1.28;
    letter-spacing: -0.025em;
    max-width: 100%;
  }

  .sz-input-card,
  .utility-glass-input.input-panel,
  .utility-glass-input {
    margin-top: 20px;
  }

  .utility-glass-input .input-panel-surface,
  .sz-input-card .input-panel-surface {
    border-radius: 22px;
  }

  .utility-glass-input .input-panel-inner,
  .sz-input-card .input-panel-inner {
    padding: 18px 18px 6px;
  }

  .sz-editor,
  .tracks-input,
  .tlid-textarea {
    min-height: 128px;
    padding: 14px 15px;
  }

  body.tracklist-page .tracks-input,
  body.tracklist-page .tlid-textarea {
    min-height: 136px;
  }

  .sz-topbar,
  .topbar {
    gap: 16px;
    padding-top: max(24px, calc(16px + env(safe-area-inset-top, 0px)));
    padding-bottom: 18px;
  }

  .utility-process-float {
    margin-top: 14px;
    bottom: max(18px, calc(14px + env(safe-area-inset-bottom, 0px)));
  }

  .sz-primary-button,
  .btn-primary,
  .tlid-button-primary,
  .process-button {
    min-height: 48px;
    font-size: 15.5px;
  }

  .site-footer-inner {
    width: auto;
    margin: 0;
  }
}