/* ─── CSS Variables ──────────────────────────────── */
:root {
    /* CI手冊標準色彩變數  */
    --color-primary-green: #40AF36;
    --color-primary-blue: #007AB0;
    /* CI手冊漸層色彩變數 */
    --gradient-green: linear-gradient(90deg, #40AF36, #009C77);
    --gradient-blue: linear-gradient(90deg, #007AB0, #004D79);
    --gradient-green-blue-1: linear-gradient(90deg, #40AF36, #007AB0);
    --gradient-green-blue-2: linear-gradient(90deg, #009C77, #004D79);
    /* ─── Brand Colors ──────────────────────────────── */
    --blue-900: #14598D;
    --blue-800: #25587F;
    --blue-700: #0268B7;
    --blue-600: #004D79;
    --blue-500: #007AB0;
    --mint: #5ECBC3;
    --green-800: #006833;
    --green-600: #3CB371;
    --orange: #FC8561;
    /* ─── Neutral Colors ────────────────────────────── */
    --gray-900: #3C3C3C;
    --gray-700: #727171;
    --gray-100: #EDEDED;
    --white: #FFFFFF;
    --line: #D9E2E7;
    /* ─── Other Variables ────────────────────────────── */
    --shadow: 0 4px 20px rgba(20, 89, 141, 0.10);
    --shadow-hover: 0 8px 32px rgba(20, 89, 141, 0.18);
    --radius: 10px;
    --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --nav-height: 52px;
}

/* ─── Reset & Base ───────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    margin: 0;
    color: var(--gray-900);
    background: #EEF3F7;
    font-family: "Noto Sans TC", "Microsoft JhengHei", Arial, sans-serif;
    line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

img { max-width: 100%; height: auto; display: block; }

/* ─── Progress Bar ───────────────────────────────── */
#progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 200;
    height: 3px;
    width: 0%;
    background: linear-gradient(90deg, var(--mint), var(--blue-700));
    transition: width 0.1s linear;
    pointer-events: none;
}

/* ─── Sticky Navigation ──────────────────────────── */
.sticky-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    height: var(--nav-height);
    display: flex;
    align-items: center;
    background: rgba(20, 89, 141, 0.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255,255,255,0.12);
    transition: box-shadow var(--transition);
}

.sticky-nav.scrolled {
    box-shadow: 0 2px 16px rgba(0,0,0,0.18);
}

.sticky-nav .container {
    display: flex;
    align-items: center;
    gap: 0;
    justify-content: space-between;
    width: 100%;
    padding: 0 16px;
    max-width: 1180px;
    margin: 0 auto;
}

.nav-brand {
    color: var(--white);
    font-weight: 900;
    font-size: 0.9rem;
    white-space: nowrap;
    letter-spacing: 0.03em;
    opacity: 0.9;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2px;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}
.nav-links::-webkit-scrollbar { display: none; }

.nav-links a {
    min-height: 36px;
    display: flex;
    align-items: center;
    padding: 6px 12px;
    border-radius: 6px;
    color: rgba(255,255,255,0.78);
    font-size: 0.86rem;
    font-weight: 700;
    white-space: nowrap;
    transition: background var(--transition), color var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    background: rgba(255,255,255,0.14);
    color: var(--white);
}

.nav-links a.active {
    color: var(--mint);
}

/* ─── Layout ─────────────────────────────────────── */
.container {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
}

/* ─── Header ─────────────────────────────────────── */
.site-header {
    color: var(--white);
    background: linear-gradient(120deg, var(--blue-900) 0%, var(--blue-600) 100%);
    position: relative;
    overflow: hidden;
}

.site-header::after {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") repeat;
    pointer-events: none;
}

.header-layout {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(240px, 320px);
    gap: 40px;
    align-items: end;
    padding: 64px 0 48px;
}

.eyebrow {
    margin: 0 0 8px;
    color: var(--mint);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

h1, h2, h3, h4, p { overflow-wrap: anywhere; }

h1 {
    max-width: 760px;
    margin: 0;
    font-size: clamp(2.2rem, 6vw, 4.6rem);
    line-height: 1.05;
    letter-spacing: -0.01em;
}

h2 {
    margin: 0;
    color: var(--blue-900);
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    line-height: 1.2;
}

h3 {
    margin: 0 0 10px;
    color: var(--blue-900);
    font-size: 1.1rem;
}

.lead {
    max-width: 680px;
    margin: 16px 0 0;
    color: rgba(255,255,255,0.82);
    font-size: 0.79rem;
    line-height: 1.7;
}

.site-warning-banner {
            /* background-color: #FFF3CD; */
            /* border-bottom: 1px solid #FFEBAA; */
            color: #FC8561;
            padding: 10px 0px;
            font-size: 0.88rem;
            font-weight: 700;
            /* text-align: center; */
            letter-spacing: 0.05em;
}

/* 專有名詞凸顯視覺效果 */
.highlight-proper-noun {
    position: relative;
    display: inline-block;
    padding: 2px 8px;
    margin: 0 2px;
    font-weight: 700; /* 加粗增強辨識度 */
    /* color: var(--white, #FFFFFF); 反白文字確保在深色底的高辨識度 */
    
    /* 運用北捷主色調微漸層作為底襯 */
    /* background: linear-gradient(135deg, var(--color-primary-blue, #007AB0) 0%, var(--blue-700, #0268B7) 100%);
    border-radius: 4px; 精緻的微圓角 */
    
    /* 利用薄荷綠作細緻的下襯線，強化品牌視覺連結
    border-bottom: 2px solid var(--mint, #5ECBC3);
    
    加上柔和的陰影使其具備微浮雕的立體感 
    box-shadow: 0 2px 6px rgba(20, 89, 141, 0.2); */
    
    /* 滑鼠懸停時的動態微互動效果 */
    transition: transform var(--transition, 0.2s), box-shadow var(--transition, 0.2s);
}

.highlight-proper-noun:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(20, 89, 141, 0.35);
    background: linear-gradient(135deg, var(--blue-700, #0268B7) 0%, var(--blue-600, #004D79) 100%);
}


/* ─── Quick Links (header nav) ───────────────────── */
.quick-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.quick-links a {
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px 12px;
    border: 1px solid rgba(255,255,255,0.28);
    border-radius: 8px;
    background: rgba(255,255,255,0.08);
    color: var(--white);
    font-size: 0.88rem;
    font-weight: 700;
    transition: background var(--transition), border-color var(--transition), transform var(--transition);
}

.quick-links a:hover,
.quick-links a:focus-visible {
    background: rgba(255,255,255,0.18);
    border-color: rgba(255,255,255,0.5);
    transform: translateY(-1px);
}

/* ─── Overview Grid ──────────────────────────────── */
.overview-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    padding: 28px 0 24px;
}

.section-heading {
    grid-column: 1 / -1;
}

/* ─── Cards & Panels ─────────────────────────────── */
.summary-card,
.panel,
.rule-card,
.slide-card {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--white);
    box-shadow: var(--shadow);
}

.summary-card {
    padding: 22px;
    transition: box-shadow var(--transition), transform var(--transition);
}

.summary-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.summary-index {
    display: inline-block;
    margin-bottom: 12px;
    color: var(--blue-600);
    font-weight: 900;
    font-size: 1.5rem;
    line-height: 1;
}

.summary-card p,
.rule-card p,
.panel-header p,
.slide-card p,
.slide-card li,
.rule-card li,
.safe-area-demo p {
    margin: 0;
    color: var(--gray-700);
    font-size: 0.92rem;
}

.panel {
    margin: 0 0 24px;
    padding: 32px;
    scroll-margin-top: calc(var(--nav-height) + 12px);
}

.panel-header {
    display: flex;
    gap: 24px;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--line);
}

.panel-header p {
    margin-top: 8px;
}

/* ─── Toolbar / Sort Buttons ─────────────────────── */
.toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    justify-content: flex-end;
    flex-shrink: 0;
}

.sort-btn {
    min-height: 38px;
    padding: 6px 14px;
    border: 1.5px solid var(--blue-600);
    border-radius: 20px;
    background: var(--white);
    color: var(--blue-700);
    font-size: 0.86rem;
    font-weight: 700;
    transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
}

.sort-btn:hover,
.sort-btn:focus-visible {
    background: var(--blue-600);
    border-color: var(--blue-600);
    color: var(--white);
    transform: translateY(-1px);
}

.sort-btn.active {
    background: var(--blue-700);
    border-color: var(--blue-700);
    color: var(--white);
}

/* ─── Color Search Bar ───────────────────────────── */
.color-search-wrap {
    position: relative;
    margin-bottom: 16px;
}

.color-search-wrap svg {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-700);
    pointer-events: none;
}

#color-search {
    width: 100%;
    max-width: 320px;
    min-height: 42px;
    padding: 8px 12px 8px 38px;
    border: 1.5px solid var(--line);
    border-radius: 8px;
    background: var(--white);
    color: var(--gray-900);
    font: inherit;
    font-size: 0.9rem;
    transition: border-color var(--transition), box-shadow var(--transition);
}

#color-search:focus {
    outline: none;
    border-color: var(--blue-600);
    box-shadow: 0 0 0 3px rgba(0, 121, 176, 0.15);
}

.color-count {
    margin-left: 10px;
    font-size: 0.82rem;
    color: var(--gray-700);
    vertical-align: middle;
}

/* ─── Color Display & Groups ─────────────────────── */
.color-display {
    display: grid;
    gap: 12px;
}

.color-group {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--white);
}

.group-header {
    width: 100%;
    min-height: 50px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 18px;
    border: 0;
    border-bottom: 1px solid var(--line);
    background: #F7FAFB;
    color: var(--blue-900);
    cursor: pointer;
    font-size: 0.92rem;
    font-weight: 900;
    text-align: left;
    transition: background var(--transition);
}

.group-header:hover { background: #EEF4F7; }

.toggle-icon {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(2,104,183,0.08);
    transition: transform 0.25s ease, background var(--transition);
    font-size: 0.8rem;
    flex-shrink: 0;
}

.group-header.collapsed .toggle-icon {
    transform: rotate(-90deg);
}

.color-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
    gap: 12px;
    padding: 16px;
    transition: opacity 0.2s ease;
}

.color-grid.collapsed { display: none; }

/* ─── Color Card ─────────────────────────────────── */
.color-card {
    border: 1px solid var(--line);
    border-radius: 8px;
    overflow: hidden;
    background: var(--white);
    transition: box-shadow var(--transition), transform var(--transition);
}

.color-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.color-swatch {
    position: relative;
    width: 100%;
    height: 88px;
    border: 0;
    cursor: pointer;
    overflow: hidden;
    transition: filter var(--transition);
}

.color-swatch::after {
    content: 'Click to copy';
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0.22);
    color: var(--white);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    opacity: 0;
    transition: opacity var(--transition);
}

.color-swatch:hover::after { opacity: 1; }

.copy-message {
    position: absolute;
    inset: auto 50% 14px auto;
    transform: translateX(50%);
    padding: 4px 10px;
    border-radius: 20px;
    background: rgba(0,0,0,0.78);
    color: var(--white);
    font-size: 0.78rem;
    font-weight: 700;
    opacity: 0;
    z-index: 10;
    white-space: nowrap;
    transition: opacity 0.2s ease;
    pointer-events: none;
}

.copy-message.show { opacity: 1; }

.color-info {
    padding: 12px 14px 14px;
}

.color-info h4 {
    margin: 0 0 2px;
    color: var(--blue-900);
    font-size: 0.9rem;
}

.color-code {
    margin: 0 0 6px;
    color: var(--gray-900);
    font-family: Consolas, "Courier New", monospace;
    font-size: 0.82rem;
    font-weight: 700;
}

.color-info > p:not(.color-code) {
    margin: 0 0 10px;
    color: var(--gray-700);
    font-size: 0.8rem;
    line-height: 1.45;
}

.hsv-info, .spec-list { margin: 8px 0 0; }

.hsv-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
}

.hsv-info div,
.spec-list div {
    padding: 6px 8px;
    border-radius: 6px;
    background: #F7FAFB;
}

.hsv-info dt, .spec-list dt {
    color: var(--gray-700);
    font-size: 0.72rem;
    font-weight: 700;
}

.hsv-info dd, .spec-list dd {
    margin: 0;
    color: var(--blue-900);
    font-size: 0.82rem;
    font-weight: 900;
}

/* ─── No results message ─────────────────────────── */
.no-results {
    padding: 48px;
    text-align: center;
    color: var(--gray-700);
    font-size: 0.95rem;
}

/* ─── Font Section ───────────────────────────────── */
.two-column,
.rules-grid,
.usage-grid,
.presentation-grid {
    display: grid;
    gap: 16px;
}

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

.usage-grid,
.presentation-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.rule-card, .slide-card {
    padding: 22px;
}

.accent-blue { border-left: 4px solid var(--blue-700); }
.accent-green { border-left: 4px solid var(--mint); }
.correct { border-left: 4px solid var(--green-800); }
.incorrect { border-left: 4px solid var(--orange); }

.font-sample {
    margin: 16px 0;
    color: var(--gray-900);
    font-size: clamp(1.6rem, 4vw, 2.2rem);
    font-weight: 900;
    line-height: 1.2;
}

.font-sample.noto { font-family: "Noto Sans TC", sans-serif; }

/* ─── Logo Section ───────────────────────────────── */
.logo-stage {
    min-height: 132px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 12px 0 16px;
    border-radius: 8px;
    background: #F7FAFB;
}

.logo-image {
    display: block;
    width: min(100%, 280px);
    height: auto;
    object-fit: contain;
}

.distorted-logo { overflow: hidden; }

.distorted-logo .logo-image {
    transform: scaleX(0.68) skewX(-5deg);
    filter: saturate(0.6);
}

.safe-logo {
    width: min(100%, 240px);
    margin: 0 auto;
}

.rule-card ul, .slide-card ul {
    margin: 10px 0 0;
    padding-left: 1.2rem;
}

.rule-card li, .slide-card li {
    margin-bottom: 6px;
    font-size: 0.88rem;
}

.usage-card {
    min-height: 128px;
    padding: 18px;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.usage-card h3, .usage-card p { color: inherit; }
.usage-card h3 { font-size: 1rem; margin-bottom: 4px; }

.dark-bg {
    background: var(--blue-800);
    color: var(--white);
}

.light-bg {
    border: 1px solid var(--line);
    background: var(--gray-100);
    color: var(--gray-900);
}

.brand-bg {
    background: linear-gradient(135deg, var(--mint), var(--blue-700));
    color: var(--white);
}

.safe-area-demo {
    display: grid;
    grid-template-columns: minmax(200px, 320px) minmax(0, 1fr);
    gap: 22px;
    align-items: center;
    margin-top: 18px;
    padding: 20px;
    border: 1px dashed var(--blue-600);
    border-radius: 8px;
    background: #F7FAFB;
}

.safe-area-box {
    position: relative;
    padding: 40px;
    border: 2px dashed var(--blue-700);
    background: var(--white);
}

.safe-area-box::before {
    content: "淨空範圍";
    position: absolute;
    top: -12px;
    left: 16px;
    padding: 0 8px;
    background: var(--white);
    color: var(--blue-700);
    font-weight: 700;
    font-size: 0.82rem;
}

/* ─── Presentation Template ──────────────────────── */
.cover-slide {
    min-height: 200px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    background: var(--blue-900);
    color: var(--white);
}

.cover-slide h3, .cover-slide p, .cover-slide span {
    color: var(--white);
}

.cover-slide h3 { font-size: 1.8rem; }

.spec-list {
    display: grid;
    gap: 6px;
}

/* ─── Brand Generator ────────────────────────────── */
.generator-panel { scroll-margin-top: calc(var(--nav-height) + 12px); }

.generator-form {
    display: grid;
    grid-template-columns: repeat(5, minmax(140px, 1fr)) auto;
    gap: 14px;
    align-items: end;
    margin-bottom: 0;
    padding: 20px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #F7FAFB;
}

.form-field {
    display: grid;
    gap: 6px;
}

.form-field label {
    color: var(--blue-900);
    font-size: 0.84rem;
    font-weight: 900;
}

.select-wrap {
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
}

.select-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 1.5px solid var(--line);
    flex-shrink: 0;
    transition: background var(--transition);
}

.form-field select {
    width: 100%;
    min-height: 42px;
    padding: 8px 10px;
    border: 1.5px solid var(--line);
    border-radius: 8px;
    background: var(--white);
    color: var(--gray-900);
    font: inherit;
    font-size: 0.88rem;
    transition: border-color var(--transition), box-shadow var(--transition);
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23727171' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    padding-right: 28px;
}

.form-field select:focus {
    outline: none;
    border-color: var(--blue-600);
    box-shadow: 0 0 0 3px rgba(0, 121, 176, 0.15);
}

.generate-btn {
    min-height: 42px;
    padding: 8px 20px;
    border: 0;
    border-radius: 8px;
    background: var(--blue-700);
    color: var(--white);
    font-weight: 900;
    font-size: 0.9rem;
    white-space: nowrap;
    transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.generate-btn:hover,
.generate-btn:focus-visible {
    background: var(--blue-900);
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(2,104,183,0.3);
}

/* ─── Live Preview Status Bar ────────────────────── */
.preview-status {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: 8px;
    background: rgba(94,203,195,0.1);
    border: 1px solid rgba(94,203,195,0.3);
    margin: 14px 0 20px;
    font-size: 0.84rem;
    color: var(--blue-900);
    font-weight: 700;
}

.preview-status::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--mint);
    animation: pulse 2s infinite;
    flex-shrink: 0;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.85); }
}

/* ─── Generated Preview ──────────────────────────── */
.generated-preview { scroll-margin-top: calc(var(--nav-height) + 12px); }

.decision-output {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--white);
    box-shadow: var(--shadow);
    animation: fadeInUp 0.3s ease;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.preview-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(160px, 240px);
    gap: 20px;
    align-items: center;
    padding: 28px;
    background: linear-gradient(120deg, var(--preview-primary), var(--blue-900));
    color: var(--white);
}

.preview-hero .eyebrow,
.preview-hero h3,
.preview-hero p { color: var(--white); }

.preview-hero h3 {
    margin: 0 0 10px;
    font-size: clamp(1.6rem, 4vw, 2.6rem);
    line-height: 1.1;
}

.preview-logo {
    min-height: 120px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 18px;
    border-radius: 8px;
    font-size: 1.5rem;
    font-weight: 900;
    line-height: 1.25;
    text-align: center;
}

.preview-logo span { font-size: 0.7em; }

.preview-logo-standard { background: var(--white); color: var(--preview-primary); }
.preview-logo-reverse {
    border: 1px solid rgba(255,255,255,0.4);
    background: rgba(0,0,0,0.18);
    color: var(--white);
}
.preview-logo-black { background: var(--gray-100); color: var(--gray-900); }

.preview-summary-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr;
    gap: 14px;
    padding: 20px;
}

.preview-summary-grid section {
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #F9FBFC;
}

.preview-summary-grid h4 { margin: 0 0 10px; color: var(--blue-900); font-size: 0.9rem; }
.preview-summary-grid p { margin: 0 0 6px; color: var(--gray-700); font-size: 0.86rem; }

.decision-swatches {
    display: grid;
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 10px;
    align-items: center;
    margin-bottom: 10px;
}

.decision-swatches span {
    width: 36px;
    height: 36px;
    border: 1px solid var(--line);
    border-radius: 6px;
}

.decision-swatches strong,
.decision-swatches small { display: block; }

.decision-swatches strong { font-size: 0.88rem; color: var(--blue-900); }
.decision-swatches small { color: var(--gray-700); font-size: 0.78rem; }

.preview-slide {
    margin: 0 20px 20px;
    padding: 20px;
    border-radius: 8px;
    background: #F7FAFB;
}

.cover-preview {
    min-height: 200px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    color: var(--white);
    padding: 24px;
}

.cover-preview p, .cover-preview h4, .cover-preview span { color: var(--white); }

.cover-preview h4 {
    margin: 4px 0 8px;
    font-size: clamp(2rem, 5vw, 3.5rem);
    line-height: 1;
}

.agenda-preview { display: grid; gap: 14px; }

.agenda-preview p,
.metrics-preview p {
    margin: 0;
    color: var(--blue-900);
    font-weight: 900;
    font-size: 0.88rem;
}

.agenda-preview ol {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.agenda-preview li {
    padding: 16px;
    border-left: 4px solid var(--preview-accent);
    border-radius: 6px;
    background: var(--white);
    color: var(--blue-900);
    font-weight: 900;
    font-size: 0.9rem;
}

.agenda-preview span { display: block; color: var(--preview-primary); font-size: 0.82rem; }

.metrics-preview {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.metrics-preview p { grid-column: 1 / -1; }

.metrics-preview div { padding: 18px; border-radius: 6px; background: var(--white); }

.metrics-preview strong, .metrics-preview span { display: block; }

.metrics-preview strong {
    font-size: clamp(2rem, 5vw, 3rem);
    line-height: 1;
}

.metrics-preview span {
    margin-top: 6px;
    color: var(--gray-700);
    font-weight: 900;
    font-size: 0.88rem;
}

/* ─── Toast Notification ─────────────────────────── */
#toast-container {
    position: fixed;
    bottom: 80px;
    right: 18px;
    z-index: 300;
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    border-radius: 8px;
    background: var(--gray-900);
    color: var(--white);
    font-size: 0.86rem;
    font-weight: 700;
    box-shadow: 0 4px 16px rgba(0,0,0,0.22);
    animation: toastIn 0.25s ease;
    pointer-events: auto;
    min-width: 180px;
}

.toast.success { background: var(--green-800); }

.toast-swatch {
    width: 18px;
    height: 18px;
    border-radius: 4px;
    border: 1.5px solid rgba(255,255,255,0.3);
    flex-shrink: 0;
}

@keyframes toastIn {
    from { opacity: 0; transform: translateX(12px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes toastOut {
    from { opacity: 1; transform: translateX(0); }
    to { opacity: 0; transform: translateX(12px); }
}

/* ─── Back To Top ────────────────────────────────── */
#back-to-top {
    position: fixed;
    right: 18px;
    bottom: 18px;
    width: 44px;
    height: 44px;
    border: 0;
    border-radius: 50%;
    background: var(--blue-700);
    color: var(--white);
    font-size: 1.2rem;
    font-weight: 900;
    opacity: 0;
    pointer-events: none;
    box-shadow: 0 4px 16px rgba(2,104,183,0.35);
    transition: opacity var(--transition), transform var(--transition), background var(--transition);
}

#back-to-top.show {
    opacity: 1;
    pointer-events: auto;
}

#back-to-top:hover,
#back-to-top:focus-visible {
    transform: translateY(-3px);
    background: var(--blue-900);
}

/* ─── Scroll Reveal Animation ────────────────────── */
.reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.45s ease, transform 0.45s ease;
}

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

/* ─── Focus Visible ──────────────────────────────── */
:focus-visible {
    outline: 2.5px solid var(--mint);
    outline-offset: 3px;
}

/* ─── Responsive ─────────────────────────────────── */
@media (max-width: 900px) {
    .header-layout,
    .safe-area-demo {
        grid-template-columns: 1fr;
        align-items: start;
    }

    .panel-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .toolbar { justify-content: flex-start; }

    .overview-grid,
    .usage-grid,
    .presentation-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

    .generate-btn { grid-column: 1 / -1; }

    .preview-hero,
    .preview-summary-grid,
    .metrics-preview {
        grid-template-columns: 1fr;
    }

    .agenda-preview ol { grid-template-columns: 1fr; }

    .sticky-nav .nav-brand { display: none; }
}

@media (max-width: 640px) {
    .container { width: min(100% - 24px, 1180px); }
    .header-layout { padding: 40px 0 30px; }

    .quick-links,
    .overview-grid,
    .two-column,
    .rules-grid,
    .usage-grid,
    .presentation-grid {
        grid-template-columns: 1fr;
    }

    .panel { padding: 20px; }

    .color-grid { grid-template-columns: repeat(2, 1fr); }

    .generator-form,
    .preview-summary-grid {
        grid-template-columns: 1fr;
    }

    .preview-hero,
    .preview-slide { padding: 18px; }
    .preview-slide { margin: 0 18px 18px; }
    
    #color-search { max-width: 100%; }
}

@media (max-width: 380px) {
    .color-grid { grid-template-columns: 1fr; }
}

/* ─── Applications Overview ─────────────────────── */
.applications-hero {
    align-items: center;
}

.applications-panel {
    margin-top: 28px;
}

.app-card-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.app-card {
    display: flex;
    min-height: 100%;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--white);
    box-shadow: var(--shadow);
    transition: box-shadow var(--transition), transform var(--transition);
}

.app-card:hover,
.app-card:focus-within {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.app-preview {
    min-height: 176px;
    padding: 18px;
    border-bottom: 1px solid var(--line);
    background: #F7FAFB;
}

.app-preview-table {
    display: grid;
    grid-template-rows: auto 1fr;
    gap: 14px;
}

.app-preview-toolbar {
    display: flex;
    gap: 8px;
}

.app-preview-toolbar span {
    height: 28px;
    flex: 1;
    border-radius: 8px;
    background: var(--white);
    border: 1px solid rgba(2, 104, 183, 0.16);
}

.app-table-lines {
    display: grid;
    grid-template-columns: 1.25fr repeat(3, 1fr);
    gap: 8px;
    align-content: start;
}

.app-table-lines span {
    height: 18px;
    border-radius: 5px;
    background: rgba(2, 104, 183, 0.12);
}

.app-table-lines .wide {
    background: var(--blue-700);
}

.app-preview-agent {
    display: grid;
    grid-template-columns: 76px minmax(0, 1fr);
    gap: 14px;
    background: linear-gradient(135deg, #F7FAFB, #EAF7F6);
}

.agent-rail {
    display: grid;
    gap: 9px;
}

.agent-rail span,
.agent-content span,
.agent-options i {
    display: block;
    border-radius: 999px;
}

.agent-rail span {
    height: 24px;
    background: rgba(20, 89, 141, 0.12);
}

.agent-rail .active {
    background: var(--blue-700);
}

.agent-content {
    display: grid;
    align-content: center;
    gap: 10px;
}

.agent-content span {
    height: 12px;
    background: rgba(20, 89, 141, 0.18);
}

.agent-content .agent-title {
    width: 70%;
    height: 20px;
    background: var(--blue-900);
}

.agent-options {
    display: grid;
    gap: 8px;
    margin-top: 6px;
}

.agent-options i {
    height: 22px;
    border: 1px solid rgba(94, 203, 195, 0.5);
    background: var(--white);
}

.app-preview-act {
    position: relative;
    display: grid;
    align-items: end;
    overflow: hidden;
    min-height: 176px;
    background: linear-gradient(135deg, var(--mint), #F8FBEC);
}

.app-preview-act img {
    position: absolute;
    right: -10px;
    bottom: 6px;
    width: min(55%, 190px);
    opacity: 0.95;
}

.act-preview-copy {
    position: relative;
    z-index: 1;
    display: grid;
    gap: 4px;
    color: var(--blue-900);
}

.act-preview-copy span {
    color: var(--green-800);
    font-size: 0.78rem;
    font-weight: 900;
    letter-spacing: 0.12em;
}

.act-preview-copy strong {
    max-width: 58%;
    font-size: 1.55rem;
    line-height: 1.15;
}

.app-card-body {
    display: flex;
    flex: 1;
    flex-direction: column;
    padding: 22px;
}

.app-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
}

.app-type,
.app-status,
.app-tags span {
    display: inline-flex;
    align-items: center;
    min-height: 24px;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 0.76rem;
    font-weight: 700;
}

.app-type {
    background: rgba(2, 104, 183, 0.10);
    color: var(--blue-900);
}

.app-status {
    background: rgba(94, 203, 195, 0.18);
    color: #247A76;
}

.app-card h3 {
    margin-bottom: 8px;
    font-size: 1.2rem;
}

.app-card p {
    margin: 0;
    color: var(--gray-700);
    font-size: 0.92rem;
}

.app-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin: 18px 0 20px;
}

.app-tags span {
    background: var(--gray-100);
    color: var(--gray-700);
}

.app-card-link {
    display: inline-flex;
    min-height: 42px;
    align-items: center;
    justify-content: center;
    margin-top: auto;
    padding: 8px 18px;
    border-radius: 8px;
    background: var(--blue-700);
    color: var(--white);
    font-size: 0.9rem;
    font-weight: 900;
    transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
}

.app-card-link:hover,
.app-card-link:focus-visible {
    background: var(--blue-900);
    box-shadow: 0 4px 14px rgba(2, 104, 183, 0.30);
    transform: translateY(-1px);
}

.application-notes {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.application-notes article {
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #F9FBFC;
}

.application-notes span {
    display: inline-block;
    margin-bottom: 10px;
    color: var(--blue-600);
    font-size: 1.25rem;
    font-weight: 900;
    line-height: 1;
}

.application-notes h3 {
    margin-bottom: 8px;
}

.application-notes p {
    margin: 0;
    color: var(--gray-700);
    font-size: 0.9rem;
}

@media (max-width: 900px) {
    .app-card-grid,
    .application-notes {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .app-card-grid,
    .application-notes {
        grid-template-columns: 1fr;
    }

    .app-preview {
        min-height: 150px;
    }
}

/* ─── Layout Generator ───────────────────────────── */
.layout-gen-panel { scroll-margin-top: calc(var(--nav-height) + 12px); }

.lgen-controls {
    display: grid;
    gap: 20px;
    margin-bottom: 20px;
}

.lgen-control-group { display: grid; gap: 10px; }

.lgen-group-label {
    margin: 0;
    color: var(--blue-900);
    font-size: 0.84rem;
    font-weight: 900;
    letter-spacing: 0.02em;
}

.lgen-seed-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.lgen-seed {
    min-height: 36px;
    padding: 6px 16px;
    border: 1.5px solid var(--line);
    border-radius: 20px;
    background: var(--white);
    color: var(--gray-700);
    font: inherit;
    font-size: 0.86rem;
    font-weight: 700;
    cursor: pointer;
    transition: background var(--transition), border-color var(--transition), color var(--transition), transform var(--transition);
}

.lgen-seed:hover { border-color: var(--blue-600); color: var(--blue-700); transform: translateY(-1px); }

.lgen-seed.active {
    background: var(--blue-700);
    border-color: var(--blue-700);
    color: var(--white);
}

/* layout pills are multi-toggle: dim when inactive */
#lgen-layouts .lgen-seed:not(.active) {
    background: var(--gray-100);
    color: var(--gray-700);
    border-color: var(--line);
    opacity: 0.55;
}

#lgen-layouts .lgen-seed.active { opacity: 1; }

.lgen-layout-hint {
    margin: 0;
    color: var(--gray-700);
    font-size: 0.78rem;
    font-style: italic;
}

.lgen-module-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.lgen-module-check {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 6px 14px;
    border: 1.5px solid var(--line);
    border-radius: 8px;
    cursor: pointer;
    background: var(--white);
    transition: border-color var(--transition), background var(--transition);
    user-select: none;
}

.lgen-module-check:has(input:checked) {
    border-color: var(--mint);
    background: rgba(94,203,195,0.07);
}

.lgen-module-check input { accent-color: var(--mint); width: 15px; height: 15px; cursor: pointer; }

.lgen-module-check span {
    font-size: 0.86rem;
    font-weight: 700;
    color: var(--gray-900);
}

/* Actions row */
.lgen-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 20px;
    padding: 16px 20px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--gray-100);
}

.lgen-generate-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    min-height: 44px;
    padding: 10px 24px;
    border: none;
    border-radius: 8px;
    background: var(--blue-700);
    color: var(--white);
    font: inherit;
    font-size: 0.95rem;
    font-weight: 900;
    cursor: pointer;
    transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.lgen-generate-btn:hover { background: var(--blue-900); transform: translateY(-1px); box-shadow: 0 4px 14px rgba(2,104,183,.3); }
.lgen-generate-btn:active { transform: scale(.97); }

.lgen-dice { font-size: 1.2rem; }

.lgen-copy-btn {
    min-height: 36px;
    padding: 6px 16px;
    border: 1.5px solid var(--blue-600);
    border-radius: 8px;
    background: var(--white);
    color: var(--blue-700);
    font: inherit;
    font-size: 0.86rem;
    font-weight: 700;
    cursor: pointer;
    transition: background var(--transition), color var(--transition);
}

.lgen-copy-btn:hover { background: var(--blue-700); color: var(--white); }

.lgen-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border-radius: 20px;
    background: rgba(94,203,195,0.15);
    border: 1px solid rgba(94,203,195,0.4);
    color: var(--blue-900);
    font-size: 0.8rem;
    font-weight: 700;
}

/* Preview area */
.lgen-preview-wrap {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    min-height: 480px;
    background: #1a2236;
    display: flex;
    flex-direction: column;
}

.lgen-empty {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 48px;
    text-align: center;
}

.lgen-empty-icon { font-size: 48px; opacity: 0.2; filter: grayscale(1); }

.lgen-empty p { margin: 0; color: rgba(255,255,255,0.45); font-size: 0.95rem; max-width: 340px; line-height: 1.6; }

.lgen-empty-sub { font-size: 0.82rem !important; color: rgba(255,255,255,0.28) !important; }

.lgen-browser { display: flex; flex-direction: column; flex: 1; }

.lgen-browser-bar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: #111827;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    flex-shrink: 0;
}

.lgen-dot {
    width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0;
}
.lgen-dot.r { background: #FF5F57; }
.lgen-dot.y { background: #FEBC2E; }
.lgen-dot.g { background: #28C840; }

.lgen-browser-url {
    flex: 1;
    text-align: center;
    background: rgba(255,255,255,0.06);
    border-radius: 5px;
    padding: 3px 10px;
    font-size: 11px;
    color: rgba(255,255,255,0.35);
    letter-spacing: 0.02em;
    margin: 0 8px;
    font-family: Consolas, monospace;
}

#lgen-frame {
    flex: 1;
    width: 100%;
    border: none;
    background: #fff;
    min-height: 580px;
}

@media (max-width: 640px) {
    .lgen-actions { flex-direction: column; align-items: flex-start; }
    #lgen-frame { min-height: 420px; }
}