:root {
    --color-primary: #16234E;
    --color-primary-hover: #0f1a3a;
    --color-primary-strong: #0f1a3a;
    --color-primary-soft: #e8ebf3;
    --color-secondary: #AFCD36;
    --color-secondary-hover: #95b02e;
    --color-secondary-soft: #f3f8dd;
    --color-accent: #76e6ff;
    --color-ink: #f4f7ff;
    --color-ink-muted: rgba(243, 248, 221, 0.72);
    --color-ink-dark: #0f172a;
    --color-surface: #f7f9fc;
    --color-surface-strong: #ffffff;
    --color-surface-dark: rgba(12, 18, 38, 0.74);
    --color-border-light: rgba(22, 35, 78, 0.12);
    --color-border-dark: rgba(243, 248, 221, 0.16);
    --radius-xl: 28px;
    --radius-lg: 22px;
    --radius-md: 16px;
    --shadow-lg: 0 30px 70px rgba(3, 8, 24, 0.45);
    --shadow-md: 0 18px 36px rgba(6, 12, 34, 0.3);
    --theme-bg-start: #16234E;
    --theme-bg-mid: #0f1a3a;
    --theme-bg-end: #0b1229;
    --theme-header-start: rgba(22, 35, 78, 0.92);
    --theme-header-end: rgba(15, 26, 58, 0.55);
    --theme-glow-strong: rgba(175, 205, 54, 0.35);
    --theme-glow-soft: rgba(118, 230, 255, 0.24);
    --theme-dust-1: rgba(255, 255, 255, 0.16);
    --theme-dust-2: rgba(175, 205, 54, 0.2);
    --theme-dust-3: rgba(118, 230, 255, 0.24);
}

html {
    scroll-behavior: smooth;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body.site-body {
    margin: 0;
    font-family: 'IBM Plex Mono', monospace;
    color: var(--color-ink);
    background: radial-gradient(120% 120% at 5% 0%, var(--theme-bg-start) 0%, var(--theme-bg-mid) 45%, var(--theme-bg-end) 100%);
    min-height: 100vh;
}

body.site-body--light {
    --color-ink: #16234E;
    --color-ink-muted: rgba(22, 35, 78, 0.64);
    --color-surface-dark: rgba(255, 255, 255, 0.78);
    --color-border-dark: rgba(22, 35, 78, 0.12);
    --theme-header-start: rgba(255, 255, 255, 0.92);
    --theme-header-end: rgba(247, 249, 240, 0.82);
    --theme-glow-strong: rgba(175, 205, 54, 0.24);
    --theme-glow-soft: rgba(22, 35, 78, 0.14);
    --theme-dust-1: rgba(22, 35, 78, 0.08);
    --theme-dust-2: rgba(175, 205, 54, 0.14);
    --theme-dust-3: rgba(22, 35, 78, 0.07);
    color: var(--color-ink-dark);
    background:
        radial-gradient(60% 80% at 100% 0%, rgba(175, 205, 54, 0.18) 0%, transparent 72%),
        radial-gradient(60% 70% at 0% 0%, rgba(22, 35, 78, 0.08) 0%, transparent 74%),
        linear-gradient(180deg, #f8faf6 0%, #fcfcf7 44%, #ffffff 100%);
}

a {
    color: inherit;
}

.site-backdrop {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.site-grid {
    position: absolute;
    inset: -40% -10%;
    background-image: linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 140px 140px;
    transform: rotate(-12deg);
    opacity: 0.35;
    animation: grid-drift 20s linear infinite;
}

.site-glow {
    position: absolute;
    width: 420px;
    height: 420px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--theme-glow-strong) 0%, transparent 70%);
    filter: blur(12px);
    opacity: 0.8;
    animation: float 12s ease-in-out infinite;
}

.site-glow--one {
    top: -140px;
    right: -120px;
}

.site-glow--two {
    bottom: -160px;
    left: -120px;
    background: radial-gradient(circle, var(--theme-glow-soft) 0%, transparent 70%);
    animation-delay: 1.2s;
}

.site-dust {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 20% 18%, var(--theme-dust-1) 0%, transparent 32%),
        radial-gradient(circle at 70% 70%, var(--theme-dust-2) 0%, transparent 36%),
        radial-gradient(circle at 80% 12%, var(--theme-dust-3) 0%, transparent 32%);
    opacity: 0.5;
}

.site-app {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.site-shell {
    width: min(1200px, 100%);
    margin: 0 auto;
    padding: 0 24px;
}

.site-header {
    padding: 28px 0;
    border-bottom: 1px solid rgba(11, 18, 41, 0.55);
    background: linear-gradient(90deg, var(--theme-header-start), var(--theme-header-end));
    backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 20;
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    width: 100%;
}

.site-header__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex: 1 1 auto;
    width: 100%;
}

.site-header__drawer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex: 1 1 auto;
    min-width: 0;
}

.brand {
    display: flex;
    align-items: center;
    gap: 16px;
    text-decoration: none;
    min-width: 0;
}

.brand__logo {
    height: 56px;
    width: auto;
    display: block;
    max-width: 180px;
    background: var(--color-secondary-soft);
    border-radius: 14px;
    border: 1px solid rgba(175, 205, 54, 0.25);
    box-shadow: 0 12px 22px rgba(11, 18, 41, 0.35);
    filter: drop-shadow(0 8px 16px rgba(11, 18, 41, 0.35));
}

.brand__text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.brand__tag {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.7rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--color-ink-muted);
}

.site-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    flex: 1 1 280px;
    min-width: 0;
}

.site-nav a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 14px;
    border-radius: 999px;
    text-decoration: none;
    color: var(--color-ink-muted);
    font-size: 0.95rem;
    transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.site-nav a:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--color-ink);
    transform: translateY(-1px);
}

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

.site-menu-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    margin-left: auto;
    width: 52px;
    height: 52px;
    padding: 0;
    border-radius: 18px;
    border: 1px solid var(--color-border-dark);
    background: rgba(12, 18, 38, 0.34);
    color: var(--color-ink);
    cursor: pointer;
    box-shadow: 0 12px 28px rgba(6, 12, 34, 0.16);
    transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.site-menu-toggle span {
    position: absolute;
    width: 20px;
    height: 2px;
    border-radius: 999px;
    background: currentColor;
    transition: transform 0.22s ease, opacity 0.22s ease;
}

.site-menu-toggle span:nth-child(1) {
    transform: translateY(-6px);
}

.site-menu-toggle span:nth-child(2) {
    transform: translateY(0);
}

.site-menu-toggle span:nth-child(3) {
    transform: translateY(6px);
}

.site-header.is-menu-open .site-menu-toggle span:nth-child(1) {
    transform: translateY(0) rotate(45deg);
}

.site-header.is-menu-open .site-menu-toggle span:nth-child(2) {
    opacity: 0;
}

.site-header.is-menu-open .site-menu-toggle span:nth-child(3) {
    transform: translateY(0) rotate(-45deg);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 22px;
    border-radius: 999px;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid transparent;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.btn--primary {
    background: linear-gradient(120deg, var(--color-primary) 0%, var(--color-accent) 100%);
    color: #0b1127;
    box-shadow: 0 18px 30px rgba(15, 20, 40, 0.4);
}

.btn--primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 20px 40px rgba(15, 20, 40, 0.55);
}

.btn--ghost {
    border-color: rgba(243, 248, 221, 0.25);
    color: var(--color-ink);
}

.btn--ghost:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.site-main {
    flex: 1;
    padding: 48px 0 72px;
}

.site-footer {
    padding: 28px 0 40px;
    border-top: 1px solid rgba(11, 18, 41, 0.55);
    color: var(--color-ink-muted);
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.72rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.surface-card {
    background: var(--color-surface-strong);
    color: var(--color-ink-dark);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-light);
    box-shadow: var(--shadow-md);
}

.surface-card--glass {
    background: var(--color-surface-dark);
    color: var(--color-ink);
    border: 1px solid var(--color-border-dark);
    box-shadow: var(--shadow-lg);
}

.site-body--light .site-grid {
    background-image:
        linear-gradient(rgba(22, 35, 78, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(22, 35, 78, 0.06) 1px, transparent 1px);
    opacity: 0.42;
}

.site-body--light .site-glow {
    filter: blur(22px);
    opacity: 1;
}

.site-body--light .site-header {
    border-bottom: 1px solid rgba(22, 35, 78, 0.1);
    box-shadow: 0 12px 40px rgba(22, 35, 78, 0.06);
}

.site-body--light .brand__logo {
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(22, 35, 78, 0.1);
    box-shadow: 0 12px 28px rgba(22, 35, 78, 0.08);
    filter: none;
}

.site-body--light .brand__tag {
    color: rgba(22, 35, 78, 0.54);
}

.site-body--light .site-nav a:hover {
    background: rgba(22, 35, 78, 0.06);
    color: var(--color-primary);
}

.site-body--light .btn--primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, #20336f 100%);
    color: #f8fafc;
    box-shadow: 0 18px 32px rgba(22, 35, 78, 0.16);
}

.site-body--light .btn--primary:hover {
    box-shadow: 0 22px 42px rgba(22, 35, 78, 0.2);
}

.site-body--light .btn--ghost {
    border-color: rgba(22, 35, 78, 0.12);
    color: var(--color-primary);
    background: rgba(255, 255, 255, 0.72);
}

.site-body--light .btn--ghost:hover {
    border-color: rgba(22, 35, 78, 0.2);
    color: var(--color-primary);
    background: rgba(22, 35, 78, 0.04);
}

.site-body--light .site-menu-toggle {
    border-color: rgba(22, 35, 78, 0.12);
    background: rgba(255, 255, 255, 0.84);
    color: var(--color-primary);
}

.site-body--light .site-footer {
    border-top: 1px solid rgba(22, 35, 78, 0.1);
    color: rgba(22, 35, 78, 0.62);
}

.site-body--light .surface-card--glass {
    color: var(--color-ink-dark);
    background: rgba(255, 255, 255, 0.78);
    border-color: rgba(22, 35, 78, 0.12);
    box-shadow: 0 20px 40px rgba(22, 35, 78, 0.08);
}

@media (max-width: 900px) {
    .site-header {
        position: sticky;
        top: 0;
        padding: 16px 0;
    }

    .site-header__inner {
        display: block;
        gap: 12px;
        position: relative;
        width: 100%;
    }

    .site-header__top {
        position: relative;
        display: block;
        align-items: center;
        width: 100%;
        min-height: 52px;
        padding-right: 68px;
    }

    .site-header__drawer {
        display: grid;
        gap: 14px;
        width: 100%;
        flex: none;
        min-width: 0;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transform: translateY(-10px);
        pointer-events: none;
        transition: max-height 0.28s ease, opacity 0.22s ease, transform 0.22s ease, padding 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
        padding: 0 18px;
        border-radius: 24px;
        border: 1px solid transparent;
        background: var(--color-surface-dark);
        box-shadow: 0 22px 48px rgba(6, 12, 34, 0);
    }

    .site-header.is-menu-open .site-header__drawer {
        max-height: 520px;
        opacity: 1;
        transform: translateY(0);
        pointer-events: auto;
        padding: 18px;
        border-color: var(--color-border-dark);
        box-shadow: 0 22px 48px rgba(6, 12, 34, 0.2);
    }

    .site-menu-toggle {
        position: absolute;
        display: inline-flex;
        top: 0;
        right: 0;
        margin-left: 0;
    }

    .site-nav {
        width: 100%;
        flex: none;
        flex-direction: column;
        align-items: stretch;
        justify-content: flex-start;
        gap: 6px;
        overflow: visible;
    }

    .site-nav a {
        justify-content: flex-start;
        padding: 12px 0;
        border-radius: 0;
        border-bottom: 1px solid var(--color-border-dark);
        font-size: 1rem;
    }

    .site-nav a:last-child {
        border-bottom: 0;
    }

    .site-actions {
        width: 100%;
        flex-direction: column;
        align-items: stretch;
        padding-top: 6px;
    }

    .site-actions .btn {
        width: 100%;
    }

    .brand {
        display: inline-flex;
        max-width: 100%;
    }
}

@media (max-width: 720px) {
    .site-shell {
        padding: 0 18px;
    }

    .brand__logo {
        height: 50px;
    }

    .site-header__drawer {
        padding-inline: 16px;
    }

    .site-header.is-menu-open .site-header__drawer {
        padding: 16px;
    }

    .site-main {
        padding: 32px 0 60px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .site-grid,
    .site-glow {
        animation: none;
    }

    .site-header__drawer,
    .site-menu-toggle,
    .site-menu-toggle span,
    .site-nav a,
    .btn {
        transition: none;
    }
}

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

@keyframes float {
    0%,
    100% {
        transform: translate(-2%, -2%);
    }
    50% {
        transform: translate(2%, 2%);
    }
}

@keyframes grid-drift {
    from {
        transform: translateY(0) rotate(-12deg);
    }
    to {
        transform: translateY(120px) rotate(-12deg);
    }
}