* {
    box-sizing: border-box;
}
html,
body {
    margin: 0;
    padding: 0;
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, sans-serif;
    background: radial-gradient(circle at 30% 20%, #1b2430, #0c1015 65%);
    color: #e5e7eb;
    -webkit-font-smoothing: antialiased;
}
body {
    line-height: 1.45;
}

.swatch::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.55), rgba(0, 0, 0, 0.05));
    mix-blend-mode: multiply;
    pointer-events: none;
    opacity: 0.55;
    transition: 0.35s opacity, 0.4s transform;
}
.swatch.light::after {
    background: linear-gradient(to top, rgba(0, 0, 0, 0.62), rgba(0, 0, 0, 0));
}
.swatch.light {
    color: #111827;
}

.page-header {
    position: relative;
    padding: 4.5rem 1.5rem 3rem;
    text-align: center;
    overflow: hidden;
}
.hero-sheen {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 65% 40%, rgba(116, 101, 224, 0.35), transparent 60%), radial-gradient(circle at 30% 70%, rgba(0, 232, 255, 0.25), transparent 55%),
        linear-gradient(130deg, rgba(255, 0, 247, 0.15), transparent 60%);
    opacity: 0.9;
    pointer-events: none;
    mix-blend-mode: screen;
}
.hero {
    position: relative;
    max-width: 1050px;
    margin: 0 auto;
}
.page-header h1 {
    margin: 0 0 1.1rem;
}
.hero-title {
    --grad1: linear-gradient(95deg, #f1f5f9, #c7d2fe 38%, #f0abfc 60%, #bae6fd);
    --grad2: linear-gradient(92deg, #6366f1 0%, #8b5cf6 35%, #a855f7 55%, #ec4899 78%, #f472b6 100%);
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.55rem 0.75rem;
    font-size: clamp(2.7rem, 6.4vw, 4.4rem);
    line-height: 1.02;
    font-weight: 700;
    letter-spacing: -1.4px;
    position: relative;
    text-align: center;
}
.hero-title .hero-word {
    position: relative;
    display: inline-block;
    background: var(--grad1);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-title .accent {
    background: var(--grad2);
    -webkit-background-clip: text;
    background-clip: text;
    position: relative;
}
.hero-title .accent {
    text-shadow: 0 0 6px rgba(139, 92, 246, 0.45), 0 0 14px rgba(236, 72, 153, 0.35), 0 1px 2px rgba(0, 0, 0, 0.4);
}
.hero-title .accent::before {
    content: "";
    position: absolute;
    left: -4%;
    right: -4%;
    bottom: -8%;
    height: 40%;
    background: radial-gradient(circle at 50% 85%, rgba(236, 72, 153, 0.55), rgba(139, 92, 246, 0) 70%);
    filter: blur(10px) saturate(160%);
    opacity: 0.7;
    pointer-events: none;
}
.hero-title .tail {
    background: linear-gradient(90deg, #94a3b8, #cbd5e1 45%, #e2e8f0);
    -webkit-background-clip: text;
    background-clip: text;
}
.hero-title .brand-text::after {
    content: "";
    position: absolute;
    left: 2%;
    bottom: 6%;
    width: 96%;
    height: 38%;
    background: radial-gradient(circle at 15% 85%, rgba(116, 101, 224, 0.55), transparent 70%), radial-gradient(circle at 85% 20%, rgba(0, 232, 255, 0.35), transparent 65%);
    filter: blur(14px) saturate(140%);
    opacity: 0.6;
    z-index: -1;
    pointer-events: none;
}
.hero-title::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -0.35rem;
    width: 62%;
    height: 0.55rem;
    background: linear-gradient(90deg, rgba(99, 102, 241, 0.9), rgba(139, 92, 246, 0.8), rgba(236, 72, 153, 0.85));
    filter: blur(14px) brightness(1.05);
    opacity: 0.55;
    border-radius: 2rem;
    pointer-events: none;
}
@media (prefers-reduced-motion: no-preference) {
    .hero-title .accent {
        background-size: 200% 100%;
        animation: accentShift 6s linear infinite;
    }
}
@keyframes accentShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}
@media (prefers-reduced-motion: no-preference) {
    .hero-title .hero-word {
        animation: fadeSlide 0.9s cubic-bezier(0.4, 0.08, 0.25, 1) backwards;
    }
    .hero-title .hero-word:nth-child(2) {
        animation-delay: 0.08s;
    }
    .hero-title .hero-word:nth-child(3) {
        animation-delay: 0.16s;
    }
    .hero-title .hero-word:nth-child(4) {
        animation-delay: 0.24s;
    }
}
@keyframes fadeSlide {
    0% {
        opacity: 0;
        transform: translateY(22px) scale(0.98);
        filter: blur(4px);
    }
    60% {
        filter: blur(0);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}
.page-header h1 .thin {
    font-weight: 200;
    letter-spacing: 0.5px;
}
.page-header h1 .accent {
    background: linear-gradient(90deg, #6366f1, #8b5cf6 55%, #ec4899);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 1px 0 0 #ec4899, 0 0 2px #8b5cf6;
}
.page-header .tagline {
    margin: 0.25rem 0 1.75rem;
    font-weight: 500;
    color: #a2b1c7;
    font-size: clamp(0.9rem, 1.6vw, 1.05rem);
}

.brand-nav {
    position: absolute;
    top: 0.85rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.35rem;
    background: rgba(17, 23, 31, 0.55);
    padding: 0.35rem 0.55rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(12px);
    border-radius: 100vmax;
    box-shadow: 0 4px 18px -4px rgba(0, 0, 0, 0.5);
    width: fit-content;
}
.brand-nav a {
    text-decoration: none;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    padding: 0.55rem 0.95rem 0.5rem;
    color: #e2e8f0;
    position: relative;
    border-radius: 100vmax;
    transition: 0.3s;
}
.brand-nav a:hover,
.brand-nav a:focus-visible {
    background: linear-gradient(135deg, #323e52, #212a35);
    color: #fff;
}

.format-toggle {
    display: inline-flex;
    background: rgba(255, 255, 255, 0.07);
    padding: 0.4rem;
    gap: 0.35rem;
    border-radius: 0.85rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 2px 8px -2px rgba(0, 0, 0, 0.5) inset, 0 4px 16px -6px rgba(0, 0, 0, 0.4);
}
.fmt-btn {
    background: linear-gradient(145deg, #222d38, #1a222b);
    color: #d8e1ec;
    font-size: 0.65rem;
    letter-spacing: 0.15em;
    font-weight: 700;
    text-transform: uppercase;
    border: 1px solid #2e3b46;
    padding: 0.55rem 0.9rem 0.45rem;
    border-radius: 0.65rem;
    cursor: pointer;
    position: relative;
    transition: 0.3s;
}
.fmt-btn.active {
    background: linear-gradient(155deg, #6366f1, #8b5cf6 60%, #6366f1);
    color: #fff;
    border-color: #6366f1;
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.25) inset, 0 4px 18px -4px rgba(99, 102, 241, 0.6);
}
.fmt-btn:not(.active):hover {
    background: #253240;
}

.content {
    max-width: 1450px;
    margin: 0 auto 5rem;
    padding: 0 1.7rem 4rem;
    display: grid;
    gap: 4.5rem;
}
.brand-block {
    position: relative;
    background: linear-gradient(145deg, #141a21, #1b242e 70%, #141a21);
    padding: 2.25rem 2rem 2.4rem;
    border: 1px solid #1f2730;
    border-radius: 1.5rem;
    box-shadow: 0 2px 6px -2px rgba(0, 0, 0, 0.55), 0 10px 32px -8px rgba(0, 0, 0, 0.55);
    overflow: hidden;
}
.brand-block::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 85% 15%, rgba(255, 255, 255, 0.06), transparent 60%);
    pointer-events: none;
}

.brand-head {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    gap: 1rem 1.75rem;
    margin: 0 0 1.75rem;
    position: relative;
    z-index: 2;
}
.brand-title {
    margin: 0;
    font-size: clamp(1.65rem, 3.1vw, 2.45rem);
    line-height: 1.05;
    letter-spacing: -1px;
    font-weight: 650;
    background: linear-gradient(90deg, #f1f5f9, #d1d5db);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.brand-title .subtitle {
    display: inline-block;
    font-size: clamp(0.65rem, 1vw, 0.8rem);
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    background: linear-gradient(90deg, #6366f1, #8b5cf6);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    position: relative;
    top: -0.2rem;
    margin-left: 0.75rem;
}
.brand-block[data-brand="verglas"]::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 20% 80%, rgba(116, 101, 224, 0.18), transparent 65%);
    mix-blend-mode: color-dodge;
    opacity: 0.9;
    pointer-events: none;
}
.brand-block[data-brand="educatr"]::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 80% 75%, rgba(21, 17, 80, 0.4), transparent 70%);
    mix-blend-mode: overlay;
    opacity: 0.65;
    pointer-events: none;
}
.brand-block[data-brand="igloocode"]::after {
    content: "";
    display: none;
}

.first-brand {
    margin-top: 1rem;
}

.group-heading {
    margin: 2.25rem 0 0.9rem;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: #708095;
    background: linear-gradient(90deg, #4d5b68, #8695a4);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    position: relative;
}
.group-heading:first-of-type {
    margin-top: 0.25rem;
}
.group-heading::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -0.45rem;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.18), transparent);
}

.swatches {
    --min: 160px;
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fill, minmax(var(--min), 1fr));
    align-items: stretch;
}
@media (max-width: 850px) {
    .swatches {
        --min: 140px;
        gap: 0.85rem;
    }
}
@media (max-width: 600px) {
    .swatches {
        --min: 130px;
    }
}

.swatch {
    position: relative;
    background: var(--swatch);
    border-radius: 1rem;
    padding: 1rem 0.9rem 0.85rem;
    min-height: 150px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    overflow: hidden;
    isolation: isolate;
    box-shadow: 0 2px 8px -2px rgba(0, 0, 0, 0.5), 0 6px 22px -6px rgba(0, 0, 0, 0.55);
}
.swatch {
    pointer-events: auto;
}
.swatch.bordered {
    outline: 1px solid #2a3039;
}

.swatch.dark {
    color: #f8fafc;
}
.swatch.light .code {
    color: #374151;
}
.swatch.dark .code {
    color: #d1d5db;
}
.swatch:hover::after {
    opacity: 0.33;
}
.swatch:hover {
    transform: translateY(-4px);
}
.swatch:focus-visible {
    outline: 3px solid #8b5cf6;
    outline-offset: 3px;
}
.swatch:focus-within {
    outline: 2px solid #6366f1;
    outline-offset: 2px;
}
.swatch {
    cursor: pointer;
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.swatch:active {
    transform: translateY(2px);
}
.swatch.copied {
    box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.6), 0 0 0 6px rgba(96, 165, 250, 0.15);
}

.copy-indicator {
    position: absolute;
    top: 0.6rem;
    right: 0.65rem;
    font-size: 0.6rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    background: rgba(0, 0, 0, 0.5);
    padding: 0.3rem 0.5rem 0.28rem;
    border-radius: 0.45rem;
    color: #f1f5f9;
    opacity: 0;
    transform: translateY(-4px);
    pointer-events: none;
    transition: 0.25s ease;
    text-transform: uppercase;
}
.swatch.light .copy-indicator {
    background: rgba(0, 0, 0, 0.5);
}
.swatch.copied .copy-indicator {
    opacity: 1;
    transform: translateY(0);
}

#copy-toast {
    position: fixed;
    bottom: 1.35rem;
    left: 50%;
    transform: translateX(-50%) translateY(22px);
    background: linear-gradient(135deg, #1d242c, #10151a);
    color: #f1f5f9;
    padding: 0.85rem 1.15rem 0.9rem;
    border-radius: 0.9rem;
    font-size: 0.78rem;
    box-shadow: 0 6px 28px -8px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.05) inset;
    opacity: 0;
    pointer-events: none;
    transition: 0.4s ease;
    z-index: 1000;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    border: 1px solid #28323d;
}
#copy-toast.visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.label {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    opacity: 0.92;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.35);
}
.code {
    font-size: 0.65rem;
    font-weight: 600;
    margin-top: 0.4rem;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
    padding: 0.25rem 0.5rem 0.22rem;
    border-radius: 0.5rem;
    background: rgba(255, 255, 255, 0.14);
    backdrop-filter: blur(4px) saturate(160%);
    align-self: flex-start;
    letter-spacing: 0.05em;
    box-shadow: 0 2px 4px -2px rgba(0, 0, 0, 0.4) inset;
}
.swatch.light .code {
    background: rgba(0, 0, 0, 0.08);
}

.hero-title .thin {
    font-weight: 200;
    letter-spacing: 0.4px;
}
.hero-title .brand-text {
    background: linear-gradient(92deg, #d9e3ff, #bcd0ff 35%, #a5b4fc 70%, #c4b5fd);
    -webkit-background-clip: text;
    background-clip: text;
    padding-right: 0.14em;
    margin-right: -0.14em;
    -webkit-text-stroke: 0.5px rgba(255, 255, 255, 0.06);
    text-shadow: 0 0 1px rgba(196, 196, 220, 0.6), 1px 0 0 rgba(196, 196, 220, 0.35);
}

@media (hover: none) {
    .swatch {
        min-height: 120px;
    }
}
@media (max-width: 980px) {
    .brand-head {
        flex-direction: column;
        align-items: flex-start;
    }
    .brand-note {
        max-width: 100%;
    }
}
@media (max-width: 760px) {
    .page-header {
        padding: 3.5rem 1rem 2.5rem;
    }
    .brand-nav {
        top: 0.55rem;
    }
}
@media (max-width: 620px) {
    .page-header h1 {
        font-size: clamp(2.1rem, 7.5vw, 3.1rem);
    }
    .format-toggle {
        display: flex;
    }
}
@media (max-width: 520px) {
    .brand-nav a {
        padding: 0.45rem 0.75rem 0.4rem;
        font-size: 0.6rem;
    }
    .fmt-btn {
        padding: 0.5rem 0.75rem 0.42rem;
    }
}

.page-footer {
    text-align: center;
    font-size: 0.72rem;
    color: #6b7280;
    padding: 1.5rem 1rem 3.5rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}