:root {
    color-scheme: dark;

    /* Brand theme tokens: change these values to reshape the whole identity. */
    --page-bg: #050706;
    --card: rgba(16, 19, 18, 0.9);
    --card-strong: rgba(22, 26, 24, 0.96);
    --surface: rgba(8, 11, 10, 0.82);
    --surface-soft: rgba(8, 11, 10, 0.2);
    --surface-muted: rgba(0, 0, 0, 0.2);
    --deep-accent-bg: #061009;
    --banner-bg: rgba(4, 6, 5, 0.92);
    --footer-bg: rgba(4, 6, 5, 0.9);
    --text: #eef5ef;
    --muted: #9ca6a0;
    --metal: #b6bcb8;
    --accent: #28ff82;
    --accent-soft: #9dffc7;
    --accent-ink: #031007;
    --accent-rgb: 40, 255, 130;
    --accent-line: rgba(var(--accent-rgb), 0.42);
    --field-border: rgba(182, 188, 184, 0.2);
    --field-border-soft: rgba(182, 188, 184, 0.16);
    --bg-oracle-text: "01 10 11 00 01 10 01 11";
    --bg-oracle-color: rgba(var(--accent-rgb), 0.08);
    --bg-oracle-spacing: 0.28em;
    --bg-top-glow: rgba(var(--accent-rgb), 0.16);
    --bg-grid-line: rgba(255, 255, 255, 0.025);
    --bg-grid-line-alt: rgba(255, 255, 255, 0.02);
    --bg-scan-line: rgba(var(--accent-rgb), 0.035);
    --bg-base: linear-gradient(145deg, rgba(5, 7, 6, 0.98) 0%, rgba(20, 24, 22, 0.98) 48%, rgba(6, 8, 7, 0.98) 100%);
    --button-glow: linear-gradient(145deg, rgba(var(--accent-rgb), 0.1), var(--surface-soft) 42%);
    --active-button-bg: linear-gradient(145deg, var(--accent), var(--accent-soft));
    --panel-light: linear-gradient(145deg, rgba(255, 255, 255, 0.08), transparent 32%);
    --panel-aura: linear-gradient(315deg, rgba(var(--accent-rgb), 0.08), transparent 42%);
    --card-fill: linear-gradient(135deg, rgba(53, 59, 56, 0.9), rgba(13, 17, 15, 0.96));
    --image-filter: grayscale(18%) contrast(1.06) saturate(0.92);
    --logo-filter: none;
}

body[data-theme="saffron"] {
    color-scheme: light;
    --page-bg: #fbf6e8;
    --card: rgba(255, 251, 240, 0.88);
    --card-strong: rgba(255, 249, 235, 0.94);
    --surface: rgba(255, 248, 232, 0.84);
    --surface-soft: rgba(255, 212, 124, 0.22);
    --surface-muted: rgba(255, 241, 211, 0.72);
    --deep-accent-bg: #fff7df;
    --banner-bg: rgba(255, 250, 239, 0.9);
    --footer-bg: rgba(255, 250, 239, 0.9);
    --text: #2a241b;
    --muted: #675f52;
    --metal: #856e43;
    --accent: #d9851b;
    --accent-soft: #2d8c83;
    --accent-ink: #fffaf0;
    --accent-rgb: 217, 133, 27;
    --field-border: rgba(120, 86, 39, 0.22);
    --field-border-soft: rgba(120, 86, 39, 0.16);
    --bg-oracle-text: "AUM  RAM  OM  SHANTI  JYOTI";
    --bg-oracle-color: rgba(217, 133, 27, 0.11);
    --bg-oracle-spacing: 0.16em;
    --bg-top-glow: rgba(255, 202, 113, 0.32);
    --bg-grid-line: rgba(120, 86, 39, 0.08);
    --bg-grid-line-alt: rgba(45, 140, 131, 0.06);
    --bg-scan-line: rgba(217, 133, 27, 0.05);
    --bg-base: linear-gradient(145deg, rgba(251, 246, 232, 0.98) 0%, rgba(255, 238, 196, 0.96) 52%, rgba(230, 247, 240, 0.98) 100%);
    --button-glow: linear-gradient(145deg, rgba(217, 133, 27, 0.18), rgba(45, 140, 131, 0.08) 48%);
    --active-button-bg: linear-gradient(145deg, #d9851b, #f3c95e);
    --panel-light: linear-gradient(145deg, rgba(255, 255, 255, 0.7), transparent 34%);
    --panel-aura: linear-gradient(315deg, rgba(45, 140, 131, 0.12), transparent 46%);
    --card-fill: linear-gradient(135deg, rgba(255, 253, 246, 0.94), rgba(255, 241, 211, 0.88));
    --image-filter: contrast(1.05) saturate(1.08) sepia(0.08);
    --logo-filter: invert(1);
}

body[data-theme="lotus"] {
    color-scheme: light;
    --page-bg: #f8f7ff;
    --card: rgba(255, 255, 255, 0.88);
    --card-strong: rgba(255, 255, 255, 0.94);
    --surface: rgba(255, 255, 255, 0.78);
    --surface-soft: rgba(130, 110, 220, 0.14);
    --surface-muted: rgba(238, 242, 255, 0.72);
    --deep-accent-bg: #f7f3ff;
    --banner-bg: rgba(252, 250, 255, 0.9);
    --footer-bg: rgba(252, 250, 255, 0.9);
    --text: #252037;
    --muted: #635e72;
    --metal: #756993;
    --accent: #7b61d1;
    --accent-soft: #d15d8f;
    --accent-ink: #ffffff;
    --accent-rgb: 123, 97, 209;
    --field-border: rgba(72, 61, 115, 0.2);
    --field-border-soft: rgba(72, 61, 115, 0.14);
    --bg-oracle-text: "LOTUS  LIGHT  AUM  SOURCE";
    --bg-oracle-color: rgba(123, 97, 209, 0.1);
    --bg-oracle-spacing: 0.18em;
    --bg-top-glow: rgba(209, 93, 143, 0.28);
    --bg-grid-line: rgba(72, 61, 115, 0.07);
    --bg-grid-line-alt: rgba(209, 93, 143, 0.05);
    --bg-scan-line: rgba(123, 97, 209, 0.04);
    --bg-base: linear-gradient(145deg, rgba(248, 247, 255, 0.98) 0%, rgba(239, 245, 255, 0.96) 50%, rgba(255, 239, 247, 0.98) 100%);
    --button-glow: linear-gradient(145deg, rgba(123, 97, 209, 0.16), rgba(209, 93, 143, 0.08) 48%);
    --active-button-bg: linear-gradient(145deg, #7b61d1, #d15d8f);
    --panel-light: linear-gradient(145deg, rgba(255, 255, 255, 0.78), transparent 34%);
    --panel-aura: linear-gradient(315deg, rgba(209, 93, 143, 0.12), transparent 46%);
    --card-fill: linear-gradient(135deg, rgba(255, 255, 255, 0.94), rgba(241, 244, 255, 0.88));
    --image-filter: contrast(1.04) saturate(1.12) hue-rotate(-4deg);
    --logo-filter: invert(1);
}

body[data-theme="aurora"] {
    color-scheme: dark;
    --page-bg: #071113;
    --card: rgba(10, 24, 27, 0.88);
    --card-strong: rgba(12, 30, 33, 0.95);
    --surface: rgba(7, 21, 24, 0.82);
    --surface-soft: rgba(83, 220, 198, 0.13);
    --surface-muted: rgba(255, 255, 255, 0.06);
    --deep-accent-bg: #041113;
    --banner-bg: rgba(6, 17, 20, 0.9);
    --footer-bg: rgba(6, 17, 20, 0.9);
    --text: #f2fffb;
    --muted: #a9c3be;
    --metal: #c4ddd6;
    --accent: #53dcc6;
    --accent-soft: #ffd56b;
    --accent-ink: #041113;
    --accent-rgb: 83, 220, 198;
    --field-border: rgba(196, 221, 214, 0.2);
    --field-border-soft: rgba(196, 221, 214, 0.14);
    --bg-oracle-text: "NORTH  STAR  AUM  LIGHT";
    --bg-oracle-color: rgba(83, 220, 198, 0.08);
    --bg-oracle-spacing: 0.2em;
    --bg-top-glow: rgba(255, 213, 107, 0.18);
    --bg-grid-line: rgba(255, 255, 255, 0.025);
    --bg-grid-line-alt: rgba(83, 220, 198, 0.03);
    --bg-scan-line: rgba(83, 220, 198, 0.035);
    --bg-base: linear-gradient(145deg, rgba(7, 17, 19, 0.98) 0%, rgba(18, 44, 45, 0.98) 48%, rgba(22, 23, 41, 0.98) 100%);
    --button-glow: linear-gradient(145deg, rgba(83, 220, 198, 0.14), rgba(255, 213, 107, 0.08) 42%);
    --active-button-bg: linear-gradient(145deg, #53dcc6, #ffd56b);
    --panel-light: linear-gradient(145deg, rgba(255, 255, 255, 0.08), transparent 32%);
    --panel-aura: linear-gradient(315deg, rgba(255, 213, 107, 0.08), transparent 42%);
    --card-fill: linear-gradient(135deg, rgba(24, 52, 54, 0.9), rgba(11, 25, 29, 0.96));
    --image-filter: grayscale(6%) contrast(1.05) saturate(1.08);
    --logo-filter: none;
}

* {
    box-sizing: border-box;
}

[hidden] {
    display: none !important;
}

html {
    scroll-behavior: smooth;
    background: var(--page-bg);
}

body {
    --neon-border-soft: rgba(var(--accent-rgb), 0.22);
    --neon-border: rgba(var(--accent-rgb), 0.32);
    --neon-border-strong: rgba(var(--accent-rgb), 0.78);
    --neon-line: rgba(var(--accent-rgb), 0.74);
    --neon-sheen: rgba(var(--accent-rgb), 0.08);
    --neon-shadow: rgba(var(--accent-rgb), 0.16);
    --neon-shadow-strong: rgba(var(--accent-rgb), 0.54);
    position: relative;
    min-height: 100vh;
    margin: 0;
    background: transparent;
    color: var(--text);
    font-family: "Rajdhani", Arial, sans-serif;
    letter-spacing: 0;
    overflow-x: hidden;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -2;
    background:
        radial-gradient(circle at 50% -10%, var(--bg-top-glow), transparent 28rem),
        var(--bg-base),
        linear-gradient(var(--bg-grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--bg-grid-line-alt) 1px, transparent 1px);
    background-size: auto, auto, 56px 56px, 56px 56px;
    opacity: 1;
}

body::after {
    content: var(--bg-oracle-text);
    position: fixed;
    inset: 0;
    z-index: -1;
    color: var(--bg-oracle-color);
    font-family: "Share Tech Mono", monospace;
    font-size: 1rem;
    line-height: 2.2;
    letter-spacing: var(--bg-oracle-spacing);
    overflow: hidden;
    pointer-events: none;
    white-space: pre-wrap;
    word-spacing: 1.2rem;
    background:
        repeating-linear-gradient(
            90deg,
            transparent 0 30px,
            var(--bg-scan-line) 30px 31px,
            transparent 31px 72px
        );
    opacity: 0.42;
}

.info-banner {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 5;
    width: 100%;
    min-height: 58px;
    padding: 8px 14px;
    border-bottom: 1px solid var(--neon-border);
    background: var(--banner-bg);
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.42);
    backdrop-filter: blur(8px);
}

.banner-inner {
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr) 42px;
    gap: 12px;
    width: 100%;
    align-items: center;
}

.banner-message {
    grid-column: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-width: 0;
}

.info-banner p {
    margin: 0;
    color: var(--accent-soft);
    font-family: "Rajdhani", Arial, sans-serif;
    font-weight: 600;
    font-size: clamp(0.68rem, 2vw, 0.84rem);
    line-height: 1.25;
    text-align: center;
    text-transform: uppercase;
}

.info-banner img {
    grid-column: 3;
    width: 42px;
    aspect-ratio: 1;
    border: 1px solid rgba(var(--accent-rgb), 0.2);
    border-radius: 0;
    object-fit: cover;
    object-position: center top;
    box-shadow: 0 0 8px rgba(var(--accent-rgb), 0.08);
}

.donation-button {
    flex: 0 0 auto;
    min-height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 9px 15px;
    border: 1px solid rgba(var(--accent-rgb), 0.72);
    border-radius: 6px;
    background:
        var(--active-button-bg),
        var(--accent);
    color: var(--accent-ink);
    font-weight: 700;
    line-height: 1;
    text-decoration: none;
    text-transform: uppercase;
    box-shadow: 0 10px 26px rgba(var(--accent-rgb), 0.14);
    transition: transform 160ms ease, box-shadow 160ms ease;
}

.banner-donation {
    min-height: 34px;
    padding: 8px 12px;
    font-size: 0.82rem;
}

.donation-button:hover,
.donation-button:focus-visible {
    transform: translateY(-1px);
    box-shadow: 0 12px 30px rgba(var(--accent-rgb), 0.2);
}

.theme-switcher {
    position: fixed;
    top: 66px;
    left: 50%;
    z-index: 4;
    display: flex;
    gap: 4px;
    width: min(100% - 28px, 420px);
    padding: 4px;
    border: 1px solid var(--field-border-soft);
    border-radius: 8px;
    background: var(--banner-bg);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
    backdrop-filter: blur(8px);
    transform: translateX(-50%);
}

.theme-choice {
    flex: 1 1 0;
    min-height: 26px;
    padding: 6px 7px;
    border: 1px solid transparent;
    border-radius: 6px;
    background: var(--page-bg);
    color: var(--muted);
    font: inherit;
    font-size: 0.7rem;
    font-weight: 700;
    line-height: 1;
    text-transform: uppercase;
    cursor: pointer;
    transition: border-color 160ms ease, background 160ms ease, color 160ms ease, transform 160ms ease;
}

.theme-choice:hover,
.theme-choice:focus-visible,
.theme-choice.is-active {
    border-color: var(--neon-border-strong);
    background: var(--active-button-bg);
    color: var(--accent-ink);
    transform: translateY(-1px);
}

.contact-footer {
    position: fixed;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 5;
    display: flex;
    justify-content: center;
    padding: 10px 14px;
    border-top: 1px solid var(--neon-border-soft);
    background: var(--footer-bg);
    box-shadow: 0 -8px 22px rgba(0, 0, 0, 0.36);
    backdrop-filter: blur(8px);
}

.footer-contact {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    column-gap: 2px;
    row-gap: 8px;
}

.contact-label {
    color: var(--muted);
    font-size: 0.94rem;
    font-weight: 500;
    line-height: 1;
    margin-right: 5px;
    text-decoration: underline;
    text-underline-offset: 3px;
    text-transform: none;
}

.footer-contact a {
    width: 28px;
    min-height: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    color: var(--accent-soft);
    text-decoration: none;
    opacity: 0.82;
    transition: color 160ms ease, opacity 160ms ease, transform 160ms ease;
}

.footer-contact a:hover,
.footer-contact a:focus-visible {
    color: var(--accent);
    opacity: 1;
    transform: translateY(-1px);
}

.footer-contact svg {
    width: 23px;
    height: 23px;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.8;
}

.footer-contact .line-contact svg {
    width: 21px;
    height: 21px;
}

@media (max-width: 620px) {
    .info-banner {
        min-height: 70px;
        padding: 8px 10px;
    }

    .theme-switcher {
        top: 76px;
        width: min(100% - 20px, 560px);
        padding: 4px;
    }

    .theme-choice {
        min-height: 25px;
        padding: 6px 4px;
        font-size: 0.66rem;
    }

    .banner-inner {
        grid-template-columns: minmax(0, 1fr) 34px;
        gap: 8px;
    }

    .banner-message {
        grid-column: 1;
        justify-content: flex-start;
    }

    .info-banner img {
        grid-column: 2;
        width: 34px;
    }

    .banner-donation {
        min-height: 30px;
        padding: 7px 9px;
        font-size: 0.72rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
}