/* ═══════════════════════════════════════════════════════════
   TRAVALON BRAND IDENTITY — STYLESHEET
   Modern · Minimal · Professional
═══════════════════════════════════════════════════════════ */

/* ─── RESET & BASE ─────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --black:   #000000;
  --lime:    #C8FF00;
  --gray:    #F2F2F2;
  --charcoal:#333333;
  --white:   #FFFFFF;
  --mid-gray:#999999;
  --border:  #E8E8E8;

  --font: 'Poppins', sans-serif;

  --section-pad: 80px 72px;
  --board-gap: 0;
  --radius: 2px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--white);
  color: var(--black);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ─── SIDE NAV ──────────────────────────────────────────── */
.side-nav {
  position: fixed;
  left: 24px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.nav-logo {
  font-family: var(--font);
  font-weight: 800;
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--black);
  margin-bottom: 16px;
  width: 28px;
  height: 28px;
  background: var(--lime);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.side-nav ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }

.nav-dot {
  display: block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border);
  border: 1.5px solid var(--mid-gray);
  transition: all 0.3s ease;
  position: relative;
  cursor: pointer;
}

.nav-dot::after {
  content: attr(data-label);
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--charcoal);
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.2s;
  pointer-events: none;
}

.nav-dot:hover::after,
.nav-dot.active::after { opacity: 1; }

.nav-dot.active,
.nav-dot:hover {
  background: var(--lime);
  border-color: var(--black);
  transform: scale(1.3);
}

/* ─── MAIN SCROLL ───────────────────────────────────────── */
.guideline-scroll {
  margin-left: 64px;
  max-width: 1100px;
}

/* ─── BOARD BASE ────────────────────────────────────────── */
.board {
  padding: var(--section-pad);
  border-bottom: 1px solid var(--border);
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.board.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Grid lines overlay */
.board::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.35;
  pointer-events: none;
  z-index: 0;
}

.board > * { position: relative; z-index: 1; }

/* ─── BOARD HEADER ──────────────────────────────────────── */
.board-header {
  display: flex;
  align-items: flex-start;
  gap: 32px;
  margin-bottom: 56px;
}

.section-num {
  font-size: 72px;
  font-weight: 800;
  color: var(--lime);
  line-height: 1;
  letter-spacing: -0.02em;
  flex-shrink: 0;
  -webkit-text-stroke: 1px var(--black);
}

.board-title {
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--black);
  line-height: 1.1;
  margin-bottom: 10px;
}

.board-desc {
  font-size: 15px;
  font-weight: 400;
  color: var(--charcoal);
  max-width: 560px;
  line-height: 1.7;
}

/* ─── SUBSECTION ────────────────────────────────────────── */
.subsection { margin-top: 48px; }

.subsection-title {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--black);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.accent-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--lime);
  border-radius: 50%;
  border: 1.5px solid var(--black);
  flex-shrink: 0;
}

/* ─── COVER BOARD ───────────────────────────────────────── */
.cover-board {
  min-height: 100vh;
  background: var(--white);
  justify-content: space-between;
}

.board-grid {
  display: flex;
  flex-direction: column;
  gap: 64px;
  flex: 1;
  justify-content: center;
}

.cover-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.cover-content .section-num {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--lime);
  -webkit-text-stroke: 0;
  background: var(--black);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
}

.cover-logo-lockup {
  display: flex;
  align-items: center;
  gap: 24px;
  margin: 16px 0;
}

.cover-icon { width: 80px; height: 80px; }

.cover-wordmark {
  font-size: clamp(48px, 8vw, 96px);
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--black);
  line-height: 1;
}

.cover-divider {
  width: 64px;
  height: 3px;
  background: var(--lime);
}

.cover-subtitle {
  font-size: 18px;
  font-weight: 300;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--charcoal);
}

.cover-version {
  font-size: 12px;
  font-weight: 400;
  color: var(--mid-gray);
  letter-spacing: 0.06em;
}

.cover-meta {
  display: flex;
  gap: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.cover-meta-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.meta-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mid-gray);
}

.meta-value {
  font-size: 14px;
  font-weight: 500;
  color: var(--black);
}

.lime-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--lime);
}

/* ─── LOGO BOARD ────────────────────────────────────────── */
.logo-variations-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
}

.logo-var-card { display: flex; flex-direction: column; }

.logo-var-preview {
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
}

.logo-var-preview.bg-white { background: var(--white); }
.logo-var-preview.bg-black { background: var(--black); }

.logo-lockup {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-lockup.stacked {
  flex-direction: column;
  gap: 6px;
}

.logo-icon-sm { width: 32px; height: 32px; }
.logo-icon-lg { width: 52px; height: 52px; }

.logo-wordmark-sm {
  font-family: var(--font);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.12em;
  color: var(--black);
}

.logo-wordmark-sm.stacked-text {
  font-size: 11px;
  letter-spacing: 0.16em;
}

.logo-wordmark-sm.white-text { color: var(--white); }

.logo-var-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--black);
  margin-top: 12px;
  letter-spacing: 0.04em;
}

.logo-var-use {
  font-size: 11px;
  font-weight: 400;
  color: var(--mid-gray);
  margin-top: 2px;
}

/* Clear Space */
.clearspace-demo {
  display: flex;
  align-items: center;
  gap: 64px;
}

.clearspace-box {
  position: relative;
  width: 220px;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.cs-logo-inner {
  display: flex;
  align-items: center;
  gap: 8px;
  z-index: 2;
  background: var(--white);
  padding: 8px 12px;
}

.cs-top-line, .cs-bottom-line {
  position: absolute;
  left: 10%;
  right: 10%;
  height: 1px;
  background: var(--lime);
  border: none;
}
.cs-top-line { top: 0; }
.cs-bottom-line { bottom: 0; }

.cs-left-line, .cs-right-line {
  position: absolute;
  top: 10%;
  bottom: 10%;
  width: 1px;
  background: var(--lime);
}
.cs-left-line { left: 0; }
.cs-right-line { right: 0; }

.cs-label {
  position: absolute;
  font-size: 10px;
  font-weight: 600;
  color: var(--lime);
  background: var(--black);
  padding: 1px 5px;
  border-radius: 2px;
  font-style: italic;
}
.cs-label-top { top: -10px; left: 50%; transform: translateX(-50%); }
.cs-label-bottom { bottom: -10px; left: 50%; transform: translateX(-50%); }
.cs-label-left { left: -10px; top: 50%; transform: translateY(-50%); }
.cs-label-right { right: -10px; top: 50%; transform: translateY(-50%); }

.clearspace-note {
  font-size: 14px;
  color: var(--charcoal);
  line-height: 1.7;
  max-width: 360px;
}

/* Min Size */
.minsize-row {
  display: flex;
  align-items: flex-end;
  gap: 48px;
}

.minsize-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}

.minsize-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--charcoal);
  letter-spacing: 0.04em;
}

.lime { color: var(--lime); background: var(--black); padding: 1px 5px; border-radius: 2px; font-weight: 600; }

/* ─── COLOR BOARD ───────────────────────────────────────── */
.color-palette-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 2px;
}

.color-swatch { display: flex; flex-direction: column; }

.swatch-block {
  height: 180px;
  display: flex;
  align-items: flex-end;
  padding: 12px;
  position: relative;
}

.swatch-hex {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--white);
  font-family: 'Courier New', monospace;
}

.swatch-hex.dark-hex { color: var(--charcoal); }

.swatch-info {
  padding: 14px 0 0;
}

.swatch-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--black);
  margin-bottom: 3px;
}

.swatch-role {
  font-size: 11px;
  color: var(--mid-gray);
  margin-bottom: 8px;
  line-height: 1.4;
}

.swatch-codes {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.swatch-codes span {
  font-size: 10px;
  color: var(--mid-gray);
  font-family: 'Courier New', monospace;
}

/* Color Ratio */
.color-ratio-bar {
  display: flex;
  height: 48px;
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 12px;
}

.ratio-seg {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  transition: flex 0.3s;
}

.ratio-note {
  font-size: 13px;
  color: var(--charcoal);
  font-style: italic;
}

/* ─── TYPOGRAPHY BOARD ──────────────────────────────────── */
.type-specimen { border: 1px solid var(--border); }

.type-row {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 32px;
  align-items: center;
  padding: 28px 32px;
}

.type-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex-shrink: 0;
}

.type-style-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--black);
  text-transform: uppercase;
}

.type-tracking {
  font-size: 10px;
  color: var(--mid-gray);
  font-family: 'Courier New', monospace;
}

.type-example { font-family: var(--font); color: var(--black); }
.h1-ex { font-size: 48px; font-weight: 700; letter-spacing: -0.01em; line-height: 1.1; }
.h2-ex { font-size: 32px; font-weight: 600; letter-spacing: 0; line-height: 1.2; }
.h3-ex { font-size: 22px; font-weight: 500; line-height: 1.3; }
.body-ex { font-size: 15px; font-weight: 400; line-height: 1.75; color: var(--charcoal); }
.caption-ex { font-size: 11px; font-weight: 300; letter-spacing: 0.14em; text-transform: uppercase; color: var(--mid-gray); }

.type-divider { height: 1px; background: var(--border); }

/* Type Scale */
.type-scale-row {
  display: flex;
  align-items: flex-end;
  gap: 32px;
  padding: 24px 0;
  font-family: var(--font);
  color: var(--black);
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
}

.alphabet-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.alphabet-row p {
  font-family: var(--font);
  font-size: 13px;
  font-weight: 400;
  color: var(--charcoal);
  letter-spacing: 0.08em;
}

/* ─── ICON BOARD ────────────────────────────────────────── */
.icon-grid {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: 2px;
  margin-bottom: 32px;
}

.icon-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 24px 12px;
  border: 1px solid var(--border);
  transition: background 0.2s, border-color 0.2s;
  cursor: default;
}

.icon-card:hover {
  background: var(--gray);
  border-color: var(--black);
}

.icon-card:hover svg { stroke: var(--black); }

.icon-card svg { width: 24px; height: 24px; }

.icon-card span {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--charcoal);
  text-align: center;
}

/* Icon Rules */
.icon-rules {
  display: flex;
  gap: 24px;
  align-items: center;
}

.icon-rule-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.rule-icon-demo {
  width: 52px;
  height: 52px;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
}

.rule-icon-demo.lime-bg { background: var(--lime); border-color: var(--black); }
.rule-icon-demo.black-bg { background: var(--black); border-color: var(--black); }

.icon-rule-item p {
  font-size: 10px;
  font-weight: 500;
  color: var(--charcoal);
  text-align: center;
  max-width: 64px;
}

.rule-dont { color: #cc0000 !important; }

/* ─── USAGE BOARD ───────────────────────────────────────── */
.dont-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}

.dont-card { display: flex; flex-direction: column; }

.dont-preview {
  height: 120px;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--white);
  position: relative;
}

.dont-preview::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 2px solid #ff3333;
  pointer-events: none;
}

.dont-label {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 12px 0;
}

.x-mark {
  font-size: 14px;
  font-weight: 700;
  color: #ff3333;
  flex-shrink: 0;
  margin-top: 1px;
}

.dont-label p {
  font-size: 12px;
  color: var(--charcoal);
  line-height: 1.5;
}

/* ─── APPLICATIONS BOARD ────────────────────────────────── */
.apps-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}

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

.app-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mid-gray);
}

.mockup-card {
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 8px 40px rgba(0,0,0,0.12);
}

/* Business Card */
.biz-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  height: 160px;
}

.biz-front {
  background: var(--black);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 20px;
  position: relative;
}

.biz-logo-area {
  display: flex;
  align-items: center;
  gap: 8px;
}

.biz-wordmark {
  font-family: var(--font);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--white);
}

.biz-lime-strip {
  height: 3px;
  background: var(--lime);
  width: 32px;
}

.biz-back {
  background: var(--white);
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 3px;
  border-left: 3px solid var(--lime);
}

.biz-name {
  font-size: 13px;
  font-weight: 700;
  color: var(--black);
}

.biz-title-text {
  font-size: 10px;
  font-weight: 500;
  color: var(--mid-gray);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.biz-contact {
  font-size: 10px;
  color: var(--charcoal);
}

/* Social Post */
.social-post {
  height: 220px;
  position: relative;
}

.social-img {
  position: absolute;
  inset: 0;
}

.social-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.75) 0%, transparent 50%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 20px;
}

.social-tag {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--lime);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.social-headline {
  font-size: 22px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
}

.social-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.social-logo-sm {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--white);
}

.social-cta {
  font-size: 11px;
  font-weight: 600;
  color: var(--black);
  background: var(--lime);
  padding: 5px 12px;
  border-radius: 2px;
}

/* Story */
.story-card {
  height: 280px;
  position: relative;
  max-width: 160px;
}

.story-bg {
  position: absolute;
  inset: 0;
}

.story-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.4) 0%, transparent 30%, rgba(0,0,0,0.6) 70%);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 16px;
}

.story-header {
  display: flex;
  align-items: center;
  gap: 6px;
}

.story-content {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.story-label {
  font-size: 8px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--lime);
  text-transform: uppercase;
}

.story-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
}

.story-cta-btn {
  display: inline-block;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--black);
  background: var(--lime);
  padding: 5px 10px;
  border-radius: 2px;
  text-align: center;
  margin-top: 4px;
  align-self: flex-start;
}

/* App UI */
.app-ui {
  background: var(--white);
  border: 1px solid var(--border);
  padding: 0;
  overflow: hidden;
}

.app-header {
  background: var(--black);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.app-header-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--white);
}

.app-search {
  margin: 12px 16px;
  background: var(--gray);
  border-radius: 4px;
  padding: 8px 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--mid-gray);
  font-weight: 400;
}

.app-card-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding: 0 16px;
  margin-bottom: 12px;
}

.app-dest-card {
  height: 72px;
  border-radius: 4px;
  display: flex;
  align-items: flex-end;
  padding: 8px;
  position: relative;
  overflow: hidden;
}

.app-dest-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.6), transparent);
}

.app-dest-card span {
  font-size: 11px;
  font-weight: 600;
  color: var(--white);
  position: relative;
  z-index: 1;
}

.app-cta-btn {
  margin: 0 16px 16px;
  background: var(--lime);
  color: var(--black);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-align: center;
  padding: 10px;
  border-radius: 2px;
  text-transform: uppercase;
}

/* ─── VOICE BOARD ───────────────────────────────────────── */
.voice-pillars {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
}

.voice-pillar {
  padding: 32px;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: background 0.2s;
}

.voice-pillar:hover { background: var(--gray); }

.pillar-num {
  font-size: 11px;
  font-weight: 700;
  color: var(--lime);
  background: var(--black);
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  letter-spacing: 0.04em;
}

.pillar-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--black);
}

.pillar-desc {
  font-size: 13px;
  color: var(--charcoal);
  line-height: 1.7;
}

.voice-example {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 8px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.voice-do {
  font-size: 12px;
  color: #1a7a1a;
  font-style: italic;
  line-height: 1.5;
}

.voice-dont {
  font-size: 12px;
  color: #cc0000;
  font-style: italic;
  line-height: 1.5;
}

/* Tone Spectrum */
.tone-spectrum { margin-top: 48px; }

.spectrum-bar { margin-top: 16px; }

.spectrum-track {
  height: 6px;
  background: var(--gray);
  border-radius: 3px;
  position: relative;
  margin-bottom: 10px;
}

.spectrum-fill {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 55%;
  background: linear-gradient(to right, var(--black), var(--lime));
  border-radius: 3px;
}

.spectrum-thumb {
  position: absolute;
  left: 52%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 14px;
  height: 14px;
  background: var(--lime);
  border: 2px solid var(--black);
  border-radius: 50%;
}

.spectrum-labels {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mid-gray);
}

.spectrum-note {
  font-size: 13px;
  color: var(--charcoal);
  font-style: italic;
  margin-top: 12px;
}

/* ─── MOOD BOARD ────────────────────────────────────────── */
.mood-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  grid-template-rows: 200px 200px;
  gap: 4px;
  margin-bottom: 40px;
}

.mood-img {
  border-radius: 2px;
  transition: transform 0.4s ease;
  overflow: hidden;
}

.mood-img:hover { transform: scale(1.02); }

.mood-large {
  grid-row: 1 / 3;
}

.mood-rules {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
}

.mood-rule {
  padding: 28px 32px;
  border: 1px solid var(--border);
}

.mood-rule h4 {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}

.do-rule h4 { color: #1a7a1a; }
.dont-rule h4 { color: #cc0000; }

.mood-rule ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mood-rule li {
  font-size: 13px;
  color: var(--charcoal);
  padding-left: 16px;
  position: relative;
  line-height: 1.5;
}

.do-rule li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--lime);
  font-weight: 700;
}

.dont-rule li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: #cc0000;
  font-weight: 700;
}

/* ─── FOOTER ────────────────────────────────────────────── */
.brand-footer {
  margin-top: 64px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.footer-logo span {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--black);
}

.footer-copy {
  font-size: 12px;
  color: var(--mid-gray);
}

.footer-note {
  font-size: 12px;
  color: var(--mid-gray);
}

/* ─── SCROLLBAR ─────────────────────────────────────────── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--white); }
::-webkit-scrollbar-thumb { background: var(--lime); border-radius: 2px; }

/* ─── RESPONSIVE ────────────────────────────────────────── */
@media (max-width: 900px) {
  .side-nav { display: none; }
  .guideline-scroll { margin-left: 0; }
  .board { padding: 48px 32px; }
  .logo-variations-grid { grid-template-columns: repeat(2, 1fr); }
  .color-palette-grid { grid-template-columns: repeat(3, 1fr); }
  .icon-grid { grid-template-columns: repeat(5, 1fr); }
  .apps-grid { grid-template-columns: 1fr; }
  .voice-pillars { grid-template-columns: 1fr; }
  .mood-grid { grid-template-columns: 1fr 1fr; grid-template-rows: auto; }
  .mood-large { grid-row: auto; }
  .type-row { grid-template-columns: 1fr; gap: 8px; }
  .h1-ex { font-size: 32px; }
  .h2-ex { font-size: 24px; }
  .cover-wordmark { font-size: 40px; }
  .dont-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .board { padding: 40px 20px; }
  .board-header { flex-direction: column; gap: 16px; }
  .section-num { font-size: 48px; }
  .board-title { font-size: 28px; }
  .color-palette-grid { grid-template-columns: repeat(2, 1fr); }
  .icon-grid { grid-template-columns: repeat(3, 1fr); }
  .cover-meta { flex-direction: column; gap: 16px; }
  .dont-grid { grid-template-columns: 1fr; }
  .mood-rules { grid-template-columns: 1fr; }
}

/* ─── PRINT ─────────────────────────────────────────────── */
@media print {
  .side-nav { display: none; }
  .guideline-scroll { margin-left: 0; }
  .board { opacity: 1 !important; transform: none !important; page-break-after: always; }
}