@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Inter:wght@400;500;600;700;800&family=DM+Sans:wght@400;500;700&family=Noto+Sans+SC:wght@400;700;800&family=Noto+Sans+JP:wght@400;700;800&family=Noto+Sans+KR:wght@400;700;800&display=swap');

:root {
    /* Playful palette */
    --ink: #0B0B0F;
    --ink-soft: #1a1a22;
    --paper: #FFFFFF;
    --canvas: #F6F1E7;
    --canvas-warm: #FBF7EE;
    --muted: #6B6B72;
    --line: #0B0B0F;

    --pink: #FF6B6B;
    --pink-soft: #FFD9D9;
    --blue: #5B5BFF;
    --blue-soft: #D9D9FF;
    --yellow: #FFD93D;
    --yellow-soft: #FFF1B8;
    --mint: #34D399;
    --mint-soft: #C6F6E1;

    /* Legacy aliases (kept so older inline styles don't break) */
    --gold-light: var(--blue);
    --gold: var(--ink);
    --gold-deep: var(--ink);
    --gold-dark: var(--ink);
    --gold-glow: rgba(91, 91, 255, 0.25);
    --gold-subtle: rgba(11, 11, 15, 0.05);
    --bg-primary: var(--canvas);
    --bg-secondary: var(--paper);
    --bg-card: var(--paper);
    --border-subtle: rgba(11, 11, 15, 0.12);
    --border-medium: var(--ink);
    --text-primary: var(--ink);
    --text-secondary: var(--ink);
    --text-muted: var(--ink);
    --text-dim: var(--muted);

    --nav-height: 84px;
    --radius: 22px;
    --shadow-card: 6px 6px 0 0 var(--ink);
    --shadow-card-hover: 8px 8px 0 0 var(--ink);
}

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

body {
    font-family: 'Plus Jakarta Sans', 'Inter', 'Noto Sans SC', 'Noto Sans JP', 'Noto Sans KR', -apple-system, sans-serif;
    background: var(--canvas);
    color: var(--ink);
    min-height: 100vh;
    overflow-x: hidden;
    padding-top: var(--nav-height);
    position: relative;
    -webkit-font-smoothing: antialiased;
}

/* Disable the old dark bg image */
.bg-image { display: none !important; }

/* ===== Decorative highlighted-word marks (used in headings) ===== */
.hl {
    display: inline-block;
    padding: 0 0.35em;
    border-radius: 10px;
    line-height: 1.05;
    box-decoration-break: clone;
    -webkit-box-decoration-break: clone;
}
.hl-pink   { background: var(--pink);   color: var(--ink); }
.hl-blue   { background: var(--blue);   color: var(--paper); }
.hl-yellow { background: var(--yellow); color: var(--ink); }
.hl-mint   { background: var(--mint);   color: var(--ink); }

/* ====== NAVIGATION (floating pill) ====== */
.site-nav {
    position: fixed;
    top: 18px;
    left: 50%;
    transform: translateX(-50%);
    height: 56px;
    background: var(--ink);
    color: var(--paper);
    border-radius: 999px;
    z-index: 9000;
    display: flex;
    align-items: center;
    padding: 6px 6px 6px 22px;
    gap: 6px;
    box-shadow: 4px 4px 0 0 rgba(11,11,15,0.15);
    max-width: calc(100% - 32px);
}

.nav-brand {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 1rem;
    font-weight: 800;
    color: var(--paper);
    text-decoration: none;
    margin-right: 18px;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 8px;
}
.nav-brand::before {
    content: '';
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--paper);
    border: 3px solid var(--paper);
    box-shadow: inset 0 0 0 4px var(--ink);
}

.nav-links {
    display: flex;
    gap: 2px;
    list-style: none;
    align-items: center;
}

.nav-links a {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 0.86rem;
    font-weight: 600;
    color: rgba(255,255,255,0.78);
    text-decoration: none;
    padding: 8px 14px;
    border-radius: 999px;
    transition: all 0.2s ease;
    white-space: nowrap;
}
.nav-links a:hover { color: var(--paper); background: rgba(255,255,255,0.08); }
.nav-links a.active {
    color: var(--ink);
    background: var(--paper);
    font-weight: 700;
}

.nav-lang {
    display: flex;
    gap: 2px;
    margin-left: 6px;
    padding-left: 8px;
    border-left: 1px solid rgba(255,255,255,0.15);
}

.nav-lang .lang-btn {
    background: transparent;
    border: none;
    color: rgba(255,255,255,0.7);
    padding: 6px 10px;
    border-radius: 999px;
    cursor: pointer;
    font-size: 0.72rem;
    font-weight: 700;
    font-family: 'Plus Jakarta Sans', sans-serif;
    transition: all 0.2s ease;
}
.nav-lang .lang-btn:hover { color: var(--paper); background: rgba(255,255,255,0.08); }
.nav-lang .lang-btn.active {
    background: var(--yellow);
    color: var(--ink);
}

.nav-hamburger {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    padding: 10px;
    margin-left: auto;
    border-radius: 999px;
}
.nav-hamburger span {
    width: 20px; height: 2px;
    background: var(--paper); border-radius: 2px;
    transition: all 0.3s ease;
}

/* ====== AD SLOTS ====== */
.ad-slot {
    background: var(--canvas-warm);
    border: 2px dashed var(--ink);
    border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    color: var(--muted);
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 0.7rem; letter-spacing: 1px;
    text-transform: uppercase; overflow: hidden;
}
.ad-slot::after { content: 'AD SPACE'; opacity: 0.5; }
.ad-slot-leaderboard { width: 100%; max-width: 728px; height: 90px; margin: 0 auto 20px; }
.ad-slot-rectangle { width: 300px; height: 250px; }
.ad-slot-banner { width: 100%; height: 100px; margin: 30px 0; }

/* ====== PAGE LAYOUT ====== */
.page-container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 40px 56px;
    position: relative;
    z-index: 10;
}

.page-header { text-align: center; margin-bottom: 40px; }

.page-header h1 {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: clamp(2rem, 4.6vw, 3.4rem);
    font-weight: 800;
    color: var(--ink);
    margin-bottom: 14px;
    letter-spacing: -0.02em;
    line-height: 1.05;
}

.page-header p {
    font-size: 1.05rem;
    color: var(--muted);
    font-weight: 500;
    max-width: 620px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ====== CALCULATOR CARD ====== */
.calc-card {
    background: var(--paper);
    border: 2.5px solid var(--ink);
    border-radius: var(--radius);
    padding: 36px;
    margin-bottom: 30px;
    box-shadow: var(--shadow-card);
}

.calc-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 22px;
}
.calc-grid.three-col { grid-template-columns: 1fr 1fr 1fr; }
.calc-full-width { grid-column: 1 / -1; }

/* ====== FORM ELEMENTS ====== */
.form-group { display: flex; flex-direction: column; }

.form-group label {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 0.78rem;
    color: var(--ink);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
    font-weight: 700;
}

.form-group input,
.form-group select {
    background: var(--paper);
    border: 2px solid var(--ink);
    border-radius: 14px;
    padding: 14px 18px;
    font-size: 1rem;
    color: var(--ink);
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 600;
    transition: all 0.15s ease;
    outline: none;
}

.form-group input:focus,
.form-group select:focus {
    border-color: var(--blue);
    box-shadow: 4px 4px 0 0 var(--blue);
    transform: translate(-2px, -2px);
}

.form-group input::placeholder { color: #b9b9b9; font-weight: 500; }

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%230B0B0F' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 38px;
}

.form-group select option { background: var(--paper); color: var(--ink); }

.calc-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    margin-top: 26px;
    padding: 16px 22px;
    background: var(--ink);
    border: 2px solid var(--ink);
    border-radius: 999px;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--paper);
    cursor: pointer;
    font-family: 'Plus Jakarta Sans', sans-serif;
    letter-spacing: 0.5px;
    transition: all 0.15s ease;
    box-shadow: 4px 4px 0 0 var(--ink);
}
.calc-btn:hover { background: var(--blue); border-color: var(--ink); transform: translate(-2px, -2px); box-shadow: 6px 6px 0 0 var(--ink); }
.calc-btn:active { transform: translate(0, 0); box-shadow: 2px 2px 0 0 var(--ink); }

/* ====== RESULTS ====== */
.results-section { display: none; animation: fadeIn 0.5s ease; }
.results-section.active { display: block; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(14px); }
    to   { opacity: 1; transform: translateY(0); }
}

.result-highlight {
    text-align: center;
    padding: 28px;
    background: var(--yellow);
    border: 2.5px solid var(--ink);
    border-radius: var(--radius);
    margin-bottom: 22px;
    box-shadow: var(--shadow-card);
}

.result-highlight .result-label {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--ink);
    margin-bottom: 8px;
    font-weight: 700;
}

.result-highlight .result-value {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 2.6rem;
    font-weight: 800;
    color: var(--ink);
    letter-spacing: -0.02em;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin-top: 20px;
}

.result-card {
    background: var(--paper);
    border: 2px solid var(--ink);
    border-radius: 16px;
    padding: 20px 16px;
    text-align: center;
    box-shadow: 4px 4px 0 0 var(--ink);
}

.result-card .result-card-value {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 1.4rem;
    color: var(--ink);
    font-weight: 800;
    margin-bottom: 4px;
}

.result-card .result-card-label {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 0.72rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

/* ====== VISUAL CHARTS ====== */
.pie-chart { width: 180px; height: 180px; border-radius: 50%; margin: 20px auto; position: relative; }

.pie-legend {
    display: flex; justify-content: center; gap: 20px; margin-top: 15px;
    font-family: 'Plus Jakarta Sans', sans-serif; font-size: 0.85rem;
    font-weight: 600;
}
.pie-legend-item { display: flex; align-items: center; gap: 6px; color: var(--ink); }
.pie-legend-dot { width: 12px; height: 12px; border-radius: 4px; border: 1.5px solid var(--ink); }

.bar-chart { margin: 20px 0; }
.bar-row { display: flex; align-items: center; margin-bottom: 12px; }
.bar-label {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 0.78rem; color: var(--ink); width: 110px;
    text-transform: uppercase; letter-spacing: 0.5px;
    font-weight: 700;
}
.bar-track {
    flex: 1; height: 28px;
    background: var(--canvas-warm);
    border: 2px solid var(--ink);
    border-radius: 8px; overflow: hidden; position: relative;
}
.bar-fill {
    height: 100%; border-radius: 0;
    transition: width 0.8s ease;
    display: flex; align-items: center; padding-left: 10px;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 0.78rem; color: var(--ink); font-weight: 700;
}
.bar-fill.gold { background: var(--yellow); }
.bar-fill.green { background: var(--mint); }
.bar-fill.blue { background: var(--blue); color: var(--paper); }

/* ====== SEO CONTENT ====== */
.seo-content {
    margin-top: 50px; padding: 36px;
    background: var(--paper);
    border: 2.5px solid var(--ink);
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
}
.seo-content h2 {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 1.4rem; color: var(--ink); margin-bottom: 14px;
    font-weight: 800; letter-spacing: -0.01em;
}
.seo-content p { font-size: 0.96rem; color: var(--ink); line-height: 1.7; margin-bottom: 14px; }
.seo-content ul { color: var(--ink); padding-left: 20px; line-height: 1.9; font-size: 0.94rem; }

/* ====== MORE TOOLS ====== */
.more-tools { margin-top: 70px; }

.more-tools h2 {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    color: var(--ink);
    text-align: center;
    margin-bottom: 30px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 22px;
}

.tool-card {
    background: var(--paper);
    border: 2.5px solid var(--ink);
    border-radius: var(--radius);
    padding: 28px 26px;
    text-decoration: none;
    transition: all 0.18s ease;
    display: block;
    color: var(--ink);
    box-shadow: var(--shadow-card);
    position: relative;
    overflow: hidden;
}
.tool-card::before {
    content: '';
    position: absolute;
    top: -40px; right: -40px;
    width: 110px; height: 110px;
    border-radius: 50%;
    background: var(--yellow);
    border: 2.5px solid var(--ink);
    z-index: 0;
}
.tool-card:nth-child(2)::before { background: var(--pink); }
.tool-card:nth-child(3)::before { background: var(--blue); }
.tool-card:nth-child(4)::before { background: var(--mint); }
.tool-card > * { position: relative; z-index: 1; }

.tool-card:hover { transform: translate(-3px, -3px); box-shadow: var(--shadow-card-hover); }

.tool-card h3 {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 1.15rem;
    color: var(--ink);
    margin-bottom: 8px;
    font-weight: 800;
    letter-spacing: -0.01em;
}
.tool-card p {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 0.9rem;
    color: var(--muted);
    line-height: 1.55;
    font-weight: 500;
}

/* ====== FOOTER ====== */
.site-footer {
    margin-top: 90px;
    padding: 50px 30px 40px;
    border-top: 2.5px solid var(--ink);
    text-align: center;
    background: var(--paper);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 28px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.footer-links a {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 0.86rem;
    color: var(--ink);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s ease;
}
.footer-links a:hover { color: var(--blue); }

.footer-about {
    max-width: 640px;
    margin: 0 auto 16px;
    font-size: 0.85rem;
    color: var(--muted);
    line-height: 1.6;
    font-weight: 500;
}

.footer-copy {
    font-size: 0.78rem;
    color: var(--muted);
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 600;
}

/* ====== COMPARISON CARDS ====== */
.comparison-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
    margin-top: 20px;
}

.comparison-card {
    background: var(--paper);
    border: 2.5px solid var(--ink);
    border-radius: var(--radius);
    padding: 26px;
    text-align: center;
    box-shadow: var(--shadow-card);
}

.comparison-card h3 {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--muted);
    margin-bottom: 10px;
    font-weight: 700;
}

.comparison-card .comp-value {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 1.9rem;
    font-weight: 800;
    color: var(--ink);
    margin-bottom: 4px;
    letter-spacing: -0.02em;
}

.comparison-card .comp-detail {
    font-size: 0.82rem;
    color: var(--muted);
    font-weight: 500;
}

/* ====== RESPONSIVE ====== */
@media (max-width: 880px) {
    :root { --nav-height: 72px; }
    .page-container { padding: 32px 20px; }

    .site-nav { padding: 6px 8px 6px 16px; gap: 4px; }
    .nav-brand { margin-right: 6px; font-size: 0.92rem; }
    .nav-brand::before { width: 18px; height: 18px; }
    .nav-links { display: none; }
    .nav-links.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: calc(100% + 10px);
        left: 0; right: 0;
        background: var(--ink);
        padding: 12px;
        border-radius: 22px;
        gap: 4px;
        box-shadow: 4px 4px 0 0 rgba(11,11,15,0.15);
    }
    .nav-links.open a { width: 100%; }
    .nav-hamburger { display: flex; }
    .nav-lang { margin-left: 4px; padding-left: 6px; }
    .nav-lang .lang-btn { padding: 5px 8px; font-size: 0.66rem; }

    .page-header h1 { font-size: 1.8rem; }
    .calc-card { padding: 22px; border-width: 2px; }
    .calc-grid { grid-template-columns: 1fr; gap: 16px; }
    .calc-grid.three-col { grid-template-columns: 1fr; }
    .results-grid { grid-template-columns: 1fr; }
    .tools-grid { grid-template-columns: 1fr; }
    .comparison-cards { grid-template-columns: 1fr; }
    .result-highlight .result-value { font-size: 2rem; }
    .seo-content { padding: 22px; }

    .ad-slot-leaderboard { height: 60px; }
    .ad-slot-rectangle { width: 100%; height: 200px; }
}