:root {
    --deck-ink: #0f2735;
    --deck-ink-soft: #415b6b;
    --deck-paper: #f6f3ec;
    --deck-surface: rgba(255, 255, 255, 0.88);
    --deck-line: rgba(15, 39, 53, 0.12);
    --deck-accent: #cc6a40;
    --deck-accent-soft: rgba(204, 106, 64, 0.12);
    --deck-dark: #112f42;
}

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

html,
body {
    margin: 0;
    min-height: 100%;
}

body {
    color: var(--deck-ink);
    font-family: "Inter", "Helvetica Neue", Arial, sans-serif;
    background:
        radial-gradient(circle at 88% 8%, rgba(204, 106, 64, 0.18), transparent 30%),
        linear-gradient(180deg, #fcfbf8 0%, var(--deck-paper) 100%);
}

.skip-link {
    position: fixed;
    top: -4rem;
    left: 1rem;
    z-index: 1000;
    padding: 0.5rem 0.75rem;
    border-radius: 0.55rem;
    background: #fff;
    color: var(--deck-ink);
}

.skip-link:focus-visible {
    top: 1rem;
}

.deck-topbar {
    position: sticky;
    top: 0;
    z-index: 40;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--deck-line);
    background: rgba(252, 251, 248, 0.9);
    backdrop-filter: blur(12px);
}

.deck-brand {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
}

.deck-brand__name {
    font-family: "Space Grotesk", "Inter", sans-serif;
    font-size: 1rem;
    font-weight: 700;
}

.deck-brand__tag {
    font-size: 0.68rem;
    letter-spacing: 0.09em;
    text-transform: uppercase;
    color: var(--deck-ink-soft);
}

.deck-controls {
    display: flex;
    align-items: center;
    gap: 0.45rem;
}

.deck-btn {
    border: 1px solid rgba(15, 39, 53, 0.18);
    border-radius: 999px;
    padding: 0.4rem 0.75rem;
    background: #fff;
    color: var(--deck-ink);
    font-weight: 600;
    cursor: pointer;
}

.deck-btn--ghost {
    background: transparent;
}

.deck-btn:hover,
.deck-btn:focus-visible {
    border-color: var(--deck-accent);
    color: var(--deck-accent);
}

.deck-btn.is-active {
    border-color: var(--deck-accent);
    color: var(--deck-accent);
    background: var(--deck-accent-soft);
}

.deck-counter {
    min-width: 4.5rem;
    text-align: center;
    font-size: 0.85rem;
    font-weight: 700;
}

.deck {
    scroll-snap-type: y mandatory;
}

.slide {
    min-height: calc(100vh - 3.5rem);
    scroll-snap-align: start;
    padding: clamp(2.25rem, 6vw, 4.5rem) 1rem;
    display: flex;
    align-items: center;
}

.slide__inner {
    width: min(100%, 72rem);
    margin: 0 auto;
    border: 1px solid var(--deck-line);
    border-radius: 1.4rem;
    background: var(--deck-surface);
    box-shadow: 0 18px 46px rgba(15, 39, 53, 0.08);
    padding: clamp(1.5rem, 4vw, 3rem);
}

.slide__kicker {
    margin: 0 0 0.85rem;
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--deck-accent);
}

h1,
h2 {
    margin: 0 0 1rem;
    font-family: "Space Grotesk", "Inter", sans-serif;
    line-height: 0.95;
    letter-spacing: -0.03em;
}

h1 {
    font-size: clamp(2.35rem, 7vw, 5.5rem);
    max-width: 12ch;
}

h2 {
    font-size: clamp(1.9rem, 5.4vw, 4rem);
    max-width: 17ch;
}

.slide__lead {
    max-width: 64ch;
    font-size: clamp(1.04rem, 2.5vw, 1.32rem);
    line-height: 1.65;
    color: var(--deck-ink);
}

ul,
ol {
    margin: 1.1rem 0 1rem;
    padding-left: 1.4rem;
    max-width: 76ch;
}

li {
    margin-bottom: 0.6rem;
    line-height: 1.6;
    color: var(--deck-ink-soft);
}

.slide__footnote {
    margin: 1.2rem 0 0;
    max-width: 66ch;
    line-height: 1.6;
    color: var(--deck-ink-soft);
}

.slide--cover .slide__inner,
.slide--cta .slide__inner {
    position: relative;
    overflow: hidden;
    color: #fff;
    background:
        linear-gradient(150deg, rgba(15, 39, 53, 0.98), rgba(21, 59, 81, 0.97)),
        linear-gradient(180deg, rgba(204, 106, 64, 0.2), transparent);
}

.slide--cover .slide__inner::after,
.slide--cta .slide__inner::after {
    content: "";
    position: absolute;
    inset: auto -8% -35% auto;
    width: clamp(12rem, 35vw, 24rem);
    height: clamp(12rem, 35vw, 24rem);
    border-radius: 50%;
    background: radial-gradient(circle, rgba(204, 106, 64, 0.45), transparent 70%);
}

.slide--cover .slide__kicker,
.slide--cta .slide__kicker,
.slide--cover .slide__lead,
.slide--cta .slide__lead,
.slide--cover .slide__footnote,
.slide--cta .slide__footnote {
    color: rgba(255, 255, 255, 0.92);
}

.cta-link {
    display: inline-block;
    margin-top: 1.4rem;
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 0.8rem;
    padding: 0.8rem 1rem;
    color: #fff;
    font-weight: 700;
    text-decoration: none;
}

.cta-link:hover,
.cta-link:focus-visible {
    background: rgba(255, 255, 255, 0.12);
}

.deck-side-nav {
    position: fixed;
    inset: 50% 0 auto 0;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    padding: 0 0.7rem;
    pointer-events: none;
    z-index: 50;
}

.deck-arrow {
    pointer-events: auto;
    width: 2.6rem;
    height: 2.6rem;
    border: 1px solid rgba(15, 39, 53, 0.22);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.88);
    color: var(--deck-ink);
    font-size: 1.3rem;
    line-height: 1;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 10px 26px rgba(15, 39, 53, 0.12);
}

.deck-arrow:hover,
.deck-arrow:focus-visible {
    border-color: var(--deck-accent);
    color: var(--deck-accent);
}

@media (max-width: 991px) {
    .deck-side-nav {
        display: none;
    }

    .slide {
        min-height: auto;
    }
}

@media (max-width: 640px) {
    .deck-topbar {
        flex-direction: column;
        align-items: flex-start;
    }

    .deck-controls {
        width: 100%;
        justify-content: space-between;
    }

    h2 {
        max-width: none;
    }
}