:root {
    --bg: #0a0a14;
    --bg-soft: #11111f;
    --card: rgba(255, 255, 255, 0.04);
    --card-border: rgba(255, 255, 255, 0.09);
    --text: #f4f5fb;
    --text-muted: #a3a6c2;
    --cyan: #28d8ec;
    --blue: #3b82f6;
    --purple: #7c3aed;
    --pink: #d98be8;
    --radius: 22px;
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    min-height: 100dvh;
    overflow-x: hidden;
    position: relative;
    -webkit-font-smoothing: antialiased;
}

/* Background glows */
.bg-glow {
    position: fixed;
    border-radius: 50%;
    filter: blur(110px);
    opacity: 0.5;
    pointer-events: none;
    z-index: 0;
}

.bg-glow--one {
    width: 45vw;
    height: 45vw;
    max-width: 620px;
    max-height: 620px;
    background: var(--cyan);
    top: -12vw;
    left: -8vw;
}

.bg-glow--two {
    width: 42vw;
    height: 42vw;
    max-width: 560px;
    max-height: 560px;
    background: var(--purple);
    bottom: -14vw;
    right: -10vw;
}

.bg-glow--three {
    width: 36vw;
    height: 36vw;
    max-width: 460px;
    max-height: 460px;
    background: var(--pink);
    bottom: -8vw;
    left: 20vw;
    opacity: 0.32;
}

/* Layout */
.page {
    position: relative;
    z-index: 1;
    max-width: 1180px;
    margin: 0 auto;
    padding: clamp(2.5rem, 6vw, 5.5rem) clamp(1.25rem, 4vw, 2.5rem) 3rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    min-height: 100dvh;
}

/* Hero */
.hero {
    text-align: center;
    max-width: 700px;
    margin-bottom: clamp(2.5rem, 6vw, 4rem);
}

.hero__logo {
    display: block;
    width: clamp(96px, 17vw, 150px);
    height: auto;
    margin: 0 auto 1.75rem;
    filter: drop-shadow(0 8px 30px rgba(60, 130, 246, 0.35));
}

.hero__badge {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--cyan);
    padding: 0.4rem 0.95rem;
    border: 1px solid rgba(40, 216, 236, 0.3);
    border-radius: 999px;
    background: rgba(40, 216, 236, 0.07);
    margin-bottom: 1.5rem;
}

.hero__title {
    font-size: clamp(2rem, 6vw, 3.4rem);
    font-weight: 800;
    line-height: 1.08;
    letter-spacing: -0.02em;
    background: linear-gradient(120deg, #ffffff 20%, var(--cyan) 60%, var(--pink) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    margin-bottom: 1.1rem;
}

.hero__subtitle {
    font-size: clamp(1rem, 2.4vw, 1.2rem);
    line-height: 1.6;
    color: var(--text-muted);
}

/* Cards grid */
.cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: clamp(1rem, 2.5vw, 1.6rem);
    width: 100%;
}

.card {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
    padding: clamp(1.5rem, 3vw, 2.1rem);
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    text-decoration: none;
    color: inherit;
    overflow: hidden;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: transform 0.45s var(--ease), border-color 0.45s var(--ease), box-shadow 0.45s var(--ease);
    isolation: isolate;
}

/* Accent glow per card */
.card::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: var(--radius);
    background: radial-gradient(80% 70% at var(--mx, 50%) var(--my, 0%), var(--accent-soft), transparent 70%);
    opacity: 0;
    transition: opacity 0.45s var(--ease);
    z-index: -1;
}

.card--password { --accent: var(--cyan); --accent-soft: rgba(40, 216, 236, 0.16); }
.card--clock { --accent: var(--blue); --accent-soft: rgba(59, 130, 246, 0.16); }
.card--phishing { --accent: var(--purple); --accent-soft: rgba(124, 58, 237, 0.18); }
.card--footprint { --accent: var(--pink); --accent-soft: rgba(217, 139, 232, 0.16); }

.card:hover,
.card:focus-visible {
    transform: translateY(-6px);
    border-color: color-mix(in srgb, var(--accent) 55%, transparent);
    box-shadow: 0 20px 45px -20px color-mix(in srgb, var(--accent) 60%, transparent);
    outline: none;
}

.card:hover::before,
.card:focus-visible::before {
    opacity: 1;
}

.card__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 16px;
    margin-bottom: 1.4rem;
    color: var(--accent);
    background: color-mix(in srgb, var(--accent) 14%, transparent);
    border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
    transition: transform 0.45s var(--ease);
}

.card:hover .card__icon {
    transform: scale(1.07) rotate(-3deg);
}

.card__icon svg {
    width: 28px;
    height: 28px;
}

.card__title {
    font-size: clamp(1.15rem, 2.4vw, 1.4rem);
    font-weight: 700;
    line-height: 1.25;
    margin-bottom: 0.6rem;
}

.card__desc {
    font-size: 0.95rem;
    line-height: 1.55;
    color: var(--text-muted);
    margin-bottom: 1.6rem;
    flex-grow: 1;
}

.card__cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--accent);
}

.card__cta svg {
    width: 18px;
    height: 18px;
    transition: transform 0.4s var(--ease);
}

.card:hover .card__cta svg {
    transform: translateX(5px);
}

/* Footer */
.footer {
    width: 100%;
    margin-top: auto;
    padding-top: clamp(2.5rem, 6vw, 4rem);
}

.footer-inner {
    max-width: 720px;
    margin: 0 auto;
    text-align: center;
    padding-top: clamp(1.75rem, 4vw, 2.5rem);
    border-top: 1px solid var(--card-border);
}

.footer-demo-notice {
    font-size: 0.92rem;
    line-height: 1.6;
    color: var(--text-muted);
    margin-bottom: 0.9rem;
}

.footer-copy {
    font-size: 0.82rem;
    line-height: 1.6;
    color: color-mix(in srgb, var(--text-muted) 75%, transparent);
}

.footer a {
    color: var(--cyan);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s var(--ease);
}

.footer a:hover {
    color: var(--pink);
    text-decoration: underline;
    text-underline-offset: 3px;
}

/* Entrance animation */
.hero,
.card {
    opacity: 0;
    transform: translateY(24px);
    animation: rise 0.7s var(--ease) forwards;
}

.hero { animation-delay: 0.05s; }
.card--password { animation-delay: 0.18s; }
.card--clock { animation-delay: 0.28s; }
.card--phishing { animation-delay: 0.38s; }
.card--footprint { animation-delay: 0.48s; }

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

/* Responsive */
@media (max-width: 1100px) {
    .cards {
        grid-template-columns: repeat(2, 1fr);
        max-width: 760px;
    }
}

@media (max-width: 860px) {
    .cards {
        grid-template-columns: 1fr;
        max-width: 520px;
    }

    .card {
        flex-direction: row;
        flex-wrap: wrap;
        align-items: center;
    }

    .card__icon {
        margin-bottom: 0;
        margin-right: 1.1rem;
        width: 50px;
        height: 50px;
    }

    .card__icon svg {
        width: 24px;
        height: 24px;
    }

    .card__title {
        margin-bottom: 0;
        flex: 1;
    }

    .card__desc {
        flex-basis: 100%;
        margin-top: 0.9rem;
        margin-bottom: 1.1rem;
    }
}

@media (hover: none) {
    .card:active {
        transform: translateY(-3px) scale(0.99);
        border-color: color-mix(in srgb, var(--accent) 55%, transparent);
    }
}

@media (prefers-reduced-motion: reduce) {
    .hero,
    .card {
        animation: none;
        opacity: 1;
        transform: none;
    }

    .card,
    .card__icon,
    .card__cta svg {
        transition: none;
    }
}