/* ============================================
   ppzz.ee -- Evolved-Minimal Puzzle Platform
   Burgundy-Cream Palette / Tilt-3D / Particles
   ============================================
   Typography: "Space Grotesk" (Google Fonts) bold titles.
   Body: "Inter" (Google Fonts) for descriptions.
   Floating particle dots in burgundy and gold.
   Tilt-3d puzzle card interactions.
   Generous spacing between sections.
   ============================================ */

/* --- Reset & Base --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --cream: #FFF5EB;
    --burgundy: #6B1D2A;
    --charcoal: #2A2A2A;
    --warm-gray: #6B665E;
    --wine-rose: #9E4A5A;
    --dusty-gold: #C4A84C;
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.7;
    font-weight: 400;
    color: var(--warm-gray);
    background-color: var(--cream);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* --- Particles --- */
#particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.particle {
    position: absolute;
    left: var(--x);
    top: var(--y);
    width: var(--size);
    height: var(--size);
    border-radius: 50%;
    opacity: 0;
    animation: particleFloat var(--duration) var(--delay) infinite ease-in-out;
}

.particle--burgundy {
    background-color: var(--burgundy);
}

.particle--gold {
    background-color: var(--dusty-gold);
}

@keyframes particleFloat {
    0% {
        opacity: 0;
        transform: translateY(0) translateX(0);
    }
    15% {
        opacity: 0.6;
    }
    50% {
        opacity: 0.4;
        transform: translateY(-60px) translateX(20px);
    }
    85% {
        opacity: 0.6;
    }
    100% {
        opacity: 0;
        transform: translateY(-120px) translateX(-10px);
    }
}

/* --- Section Shared --- */
.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 700;
    color: var(--charcoal);
    margin-bottom: 3rem;
    text-align: center;
}

/* --- Hero --- */
.hero {
    position: relative;
    width: 100vw;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
}

.hero__inner {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem;
}

.hero__title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 5rem);
    font-weight: 700;
    color: var(--charcoal);
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

.hero__subtitle {
    font-family: var(--font-body);
    font-size: clamp(1.1rem, 2vw, 1.5rem);
    font-weight: 400;
    color: var(--wine-rose);
    letter-spacing: 0.04em;
}

/* --- Featured Puzzles --- */
.featured {
    position: relative;
    width: 100vw;
    padding: 6rem 2rem;
    z-index: 1;
}

.featured__inner {
    max-width: 900px;
    margin: 0 auto;
}

.puzzle-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.puzzle-card {
    position: relative;
    background: #FFFFFF;
    border-radius: 16px;
    padding: 2.5rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    transform-style: preserve-3d;
    perspective: 800px;
    box-shadow: 0 4px 20px rgba(107, 29, 42, 0.06);
}

.puzzle-card:hover {
    box-shadow: 0 12px 40px rgba(107, 29, 42, 0.12);
}

.puzzle-card__face {
    transform-style: preserve-3d;
}

.puzzle-card__icon {
    margin-bottom: 1.5rem;
}

.puzzle-card__icon svg {
    display: inline-block;
}

.puzzle-card__title {
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--charcoal);
    margin-bottom: 0.75rem;
}

.puzzle-card__desc {
    font-family: var(--font-body);
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--warm-gray);
}

/* --- About --- */
.about {
    position: relative;
    width: 100vw;
    padding: 8rem 2rem;
    z-index: 1;
    background: linear-gradient(180deg, transparent 0%, rgba(107, 29, 42, 0.03) 50%, transparent 100%);
}

.about__inner {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.about__text {
    font-family: var(--font-body);
    font-size: 1.15rem;
    line-height: 1.85;
    color: var(--warm-gray);
}

/* --- More Puzzles --- */
.more-puzzles {
    position: relative;
    width: 100vw;
    padding: 6rem 2rem;
    z-index: 1;
}

.more-puzzles__inner {
    max-width: 900px;
    margin: 0 auto;
}

.puzzle-grid--small {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.puzzle-card--small {
    padding: 1.75rem 1.5rem;
    border-radius: 12px;
}

.puzzle-card--small .puzzle-card__title {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.puzzle-card--small .puzzle-card__desc {
    font-size: 0.88rem;
}

/* --- Footer --- */
.footer {
    position: relative;
    width: 100vw;
    padding: 4rem 2rem;
    z-index: 1;
    text-align: center;
}

.footer__inner {
    max-width: 900px;
    margin: 0 auto;
}

.footer__text {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--wine-rose);
    letter-spacing: 0.03em;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .puzzle-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .puzzle-grid--small {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero {
        min-height: 80vh;
    }

    .featured,
    .more-puzzles {
        padding: 4rem 1.5rem;
    }

    .about {
        padding: 5rem 1.5rem;
    }
}

@media (max-width: 480px) {
    .puzzle-grid--small {
        grid-template-columns: 1fr;
    }
}