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

:root {
    --bg: #0b0f14;
    --bg-soft: #101720;
    --panel: rgba(17, 23, 31, 0.92);
    --panel-border: rgba(255, 255, 255, 0.1);
    --text: #f8fafc;
    --text-muted: rgba(248, 250, 252, 0.7);
    --accent: #ff7849;
    --accent-dark: #e86234;
    --accent-soft: rgba(255, 120, 73, 0.18);
    --teal: #2dd4bf;
    --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

body[data-theme="light"] {
    --bg: #f5f4f2;
    --bg-soft: #ffffff;
    --panel: rgba(255, 255, 255, 0.95);
    --panel-border: rgba(15, 23, 42, 0.12);
    --text: #0f172a;
    --text-muted: rgba(15, 23, 42, 0.7);
    --accent: #0f172a;
    --accent-dark: #111827;
    --accent-soft: rgba(15, 23, 42, 0.08);
    --teal: #0ea5a3;
    --shadow: 0 20px 50px rgba(15, 23, 42, 0.15);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Noto Sans KR', sans-serif;
    background: radial-gradient(circle at 10% 20%, rgba(45, 212, 191, 0.15), transparent 50%),
        radial-gradient(circle at 85% 0%, rgba(255, 120, 73, 0.2), transparent 45%),
        var(--bg);
    color: var(--text);
    min-height: 100vh;
}

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

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 6vw;
    background: rgba(10, 14, 20, 0.8);
    border-bottom: 1px solid var(--panel-border);
    backdrop-filter: blur(14px);
}

body[data-theme="light"] .site-header {
    background: rgba(255, 255, 255, 0.9);
}

.logo {
    font-family: 'Noto Sans KR', sans-serif;
    font-weight: 700;
    font-size: 20px;
    letter-spacing: 0.5px;
}

.main-nav {
    display: flex;
    gap: 18px;
    font-size: 14px;
}

.main-nav a {
    color: var(--text-muted);
}

.main-nav a:hover {
    color: var(--text);
}

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

#theme-toggle {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--panel-border);
    padding: 8px;
    border-radius: 999px;
    cursor: pointer;
}

.icon-btn {
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.theme-icon {
    width: 20px;
    height: 20px;
    display: inline-block;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.25));
}

body[data-theme="dark"] .theme-icon {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='1.7' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='4.5'/%3E%3Cpath d='M12 2.5v2.5M12 19v2.5M4.5 12H2M22 12h-2.5M5.6 5.6 3.8 3.8M20.2 20.2 18.4 18.4M5.6 18.4 3.8 20.2M20.2 3.8 18.4 5.6'/%3E%3C/svg%3E");
}

body[data-theme="light"] .theme-icon {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230f172a' stroke-width='1.7' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20.8 14.1A8.5 8.5 0 0 1 9.9 3.2a7 7 0 1 0 10.9 10.9Z'/%3E%3C/svg%3E");
}

.menu-toggle {
    display: none;
    background: transparent;
    color: var(--text);
    border: 1px solid var(--panel-border);
    padding: 8px 14px;
    border-radius: 999px;
    cursor: pointer;
}

.cta {
    background: var(--accent);
    color: #fff;
    padding: 10px 18px;
    border-radius: 999px;
    font-weight: 600;
}

.cta:hover {
    background: var(--accent-dark);
}

.ghost {
    border: 1px solid var(--panel-border);
    padding: 10px 18px;
    border-radius: 999px;
    color: var(--text);
}

.mobile-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    padding: 20px 6vw 28px;
    background: var(--panel);
    border-bottom: 1px solid var(--panel-border);
    backdrop-filter: blur(18px);
    opacity: 0;
    transform: translateY(-10px);
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
    z-index: 15;
}

.mobile-nav {
    display: grid;
    gap: 12px;
    font-size: 16px;
}

.menu-open .mobile-menu {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

main {
    display: flex;
    flex-direction: column;
    gap: 80px;
    padding: 40px 6vw 100px;
}

.hero {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 40px;
    align-items: center;
    min-height: 70vh;
}

.hero h1 {
    font-family: 'Noto Sans KR', sans-serif;
    font-weight: 700;
    font-size: 46px;
    margin: 12px 0 16px;
    line-height: 1.1;
}

.eyebrow {
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--teal);
    font-size: 12px;
}

.hero-copy {
    font-size: 18px;
    color: var(--text-muted);
    max-width: 520px;
}

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

.hero-metrics {
    display: flex;
    gap: 30px;
    margin-top: 32px;
}

.metric-value {
    font-size: 22px;
    font-weight: 600;
}

.metric-label {
    font-size: 12px;
    color: var(--text-muted);
}

.hero-visual {
    position: relative;
    min-height: 360px;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(0);
}

.orb-one {
    width: 220px;
    height: 220px;
    background: rgba(45, 212, 191, 0.2);
    top: 0;
    right: 40px;
}

.orb-two {
    width: 260px;
    height: 260px;
    background: rgba(255, 120, 73, 0.22);
    bottom: -20px;
    left: 30px;
}

.card-stack {
    position: relative;
    display: grid;
    gap: 16px;
    margin-top: 40px;
}

.card {
    background: var(--panel);
    border: 1px solid var(--panel-border);
    padding: 18px;
    border-radius: 18px;
    box-shadow: var(--shadow);
}

.card-title {
    font-weight: 600;
    margin: 0 0 6px;
}

.card-body {
    margin: 0;
    color: var(--text-muted);
    font-size: 14px;
}

.section {
    background: var(--panel);
    border: 1px solid var(--panel-border);
    border-radius: 24px;
    padding: 40px;
    box-shadow: var(--shadow);
}

.section-title {
    margin-bottom: 24px;
}

.section-title h2 {
    font-family: 'Noto Sans KR', sans-serif;
    font-weight: 700;
    font-size: 30px;
    margin: 0 0 8px;
}

.section-title p {
    margin: 0;
    color: var(--text-muted);
}

.split {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 30px;
}

.panel {
    background: var(--bg-soft);
    padding: 24px;
    border-radius: 18px;
    border: 1px solid var(--panel-border);
}

.bullets {
    list-style: none;
    padding: 0;
    margin: 16px 0 0;
    display: grid;
    gap: 8px;
}

.bullets li {
    padding: 10px 12px;
    background: var(--accent-soft);
    border-radius: 12px;
    font-size: 14px;
}

.disclaimer {
    color: var(--text-muted);
    font-size: 14px;
}

.tech-grid,
.pricing-grid,
.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
}

.tech-card,
.price-card,
.faq-card {
    background: var(--bg-soft);
    padding: 22px;
    border-radius: 18px;
    border: 1px solid var(--panel-border);
}

.price-card.highlight {
    border-color: var(--accent);
    background: linear-gradient(135deg, rgba(255, 120, 73, 0.2), rgba(15, 23, 42, 0.2));
}

.price {
    font-size: 28px;
    font-weight: 600;
    margin: 12px 0;
}

.rules-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: center;
    justify-content: space-between;
    margin: 20px 0 12px;
    padding: 16px;
    border-radius: 16px;
    border: 1px solid var(--panel-border);
    background: var(--bg-soft);
}

.rules-search {
    flex: 1;
    min-width: 200px;
}

.rules-search input {
    width: 100%;
    padding: 10px 14px;
    border-radius: 999px;
    border: 1px solid var(--panel-border);
    background: var(--panel);
    color: var(--text);
    font-size: 14px;
}

.rules-presets {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.preset-btn {
    border: 1px solid var(--panel-border);
    background: transparent;
    color: var(--text);
    padding: 8px 14px;
    border-radius: 999px;
    font-size: 13px;
    cursor: pointer;
    transition: border 0.2s ease, background 0.2s ease;
}

.preset-btn:hover {
    border-color: var(--accent);
    background: var(--accent-soft);
}

.rules-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 18px;
    flex-wrap: wrap;
}

.rules-status {
    color: var(--text-muted);
    font-size: 13px;
}

.rules-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 28px;
}

.summary-card {
    background: var(--bg-soft);
    border: 1px solid var(--panel-border);
    border-radius: 16px;
    padding: 16px;
    display: grid;
    gap: 8px;
}

.summary-label {
    font-size: 12px;
    color: var(--text-muted);
}

.summary-value {
    font-size: 22px;
    font-weight: 700;
}

.summary-sub {
    font-size: 12px;
    color: var(--text-muted);
}

.odds-grid {
    display: grid;
    gap: 6px;
    font-size: 13px;
}

.odds-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 8px;
    align-items: center;
}

.odds-row:first-child {
    font-size: 12px;
    color: var(--text-muted);
}

.rules-groups {
    display: grid;
    gap: 24px;
}

.rule-group h3 {
    margin: 0 0 12px;
    font-size: 18px;
}

.rules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 12px;
}

.rule-card {
    display: flex;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 14px;
    border: 1px solid var(--panel-border);
    background: var(--bg-soft);
    font-size: 14px;
    cursor: pointer;
    transition: border 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    position: relative;
    overflow: hidden;
    min-height: 96px;
    align-items: center;
}

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

.rule-card::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: transparent;
    transition: background 0.2s ease;
}

.rule-input {
    position: static;
    opacity: 1;
    pointer-events: auto;
    width: 16px;
    height: 16px;
    margin: 0;
    accent-color: var(--accent);
    flex-shrink: 0;
}

.rule-body {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 0;
    width: 100%;
}

.rule-title {
    font-weight: 600;
}

.rule-desc {
    color: var(--text-muted);
    font-size: 13px;
}

.rule-stat {
    color: var(--text-muted);
    font-size: 12px;
}

.rule-card.is-checked {
    border-color: var(--accent);
    background: linear-gradient(135deg, rgba(255, 120, 73, 0.14), rgba(255, 120, 73, 0.03));
}

.rule-card.is-checked::before {
    background: var(--accent);
}

.rule-card.is-checked .rule-title::after {
    content: "선택됨";
    margin-left: 8px;
    font-size: 11px;
    color: var(--accent);
}

.rule-card.is-hidden {
    display: none;
}

.rule-group.is-empty {
    display: none;
}

.generator-panel {
    display: grid;
    gap: 20px;
}

.controls {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
}

#draw-count {
    padding: 10px 14px;
    border-radius: 10px;
    border: none;
    font-size: 15px;
}

#generate-btn {
    background: var(--accent);
    color: #fff;
    border: none;
    padding: 12px 22px;
    border-radius: 999px;
    font-weight: 600;
    cursor: pointer;
}

.numbers-container {
    display: grid;
    gap: 12px;
}

.number-row {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

.row-label {
    font-weight: 600;
    min-width: 64px;
}

.number {
    width: 46px;
    height: 46px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-soft);
    border-radius: 50%;
    font-weight: 600;
}

.error-text {
    color: var(--text-muted);
    font-size: 13px;
}

.helper-text {
    color: var(--text-muted);
    font-size: 13px;
}

.partner-form {
    display: grid;
    gap: 12px;
}

.partner-form input,
.partner-form textarea {
    padding: 12px 14px;
    border-radius: 12px;
    border: 1px solid var(--panel-border);
    background: var(--bg-soft);
    color: var(--text);
    font-size: 14px;
}

.submit-btn {
    background: var(--accent);
    color: #fff;
    border: none;
    padding: 12px 22px;
    border-radius: 999px;
    cursor: pointer;
    font-weight: 600;
}

.site-footer {
    padding: 30px 6vw 60px;
    text-align: center;
    color: var(--text-muted);
}

@media (max-width: 960px) {
    .hero,
    .split {
        grid-template-columns: 1fr;
    }

    .main-nav {
        display: none;
    }

    .site-header {
        gap: 12px;
        flex-wrap: wrap;
    }

    .menu-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }
}