/* yesan.xyz - Japanese-minimal budget architecture */

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

:root {
    --stone-dark: #1C1917;
    --stone-mid: #44403C;
    --parchment: #F0EBE3;
    --parchment-warm: #E8DFD2;
    --terracotta: #C2703E;
    --terracotta-light: #D4A574;
    --ember: #E07A3A;
    --rust: #A45A2E;
}

body {
    font-family: 'Inter', sans-serif;
    font-weight: 300;
    font-size: clamp(0.95rem, 1.5vw, 1.1rem);
    line-height: 1.75;
    color: var(--parchment);
    background: var(--stone-dark);
    overflow-x: hidden;
}

.site-header {
    text-align: center;
    padding: clamp(60px, 12vw, 140px) clamp(20px, 4vw, 40px) clamp(30px, 6vw, 60px);
}

.site-title {
    font-family: 'Bricolage Grotesque', sans-serif;
    font-weight: 800;
    font-size: clamp(3rem, 8vw, 6rem);
    letter-spacing: -0.02em;
    color: var(--parchment);
    margin-bottom: 0.5rem;
}

.site-sub {
    font-family: 'Inter', sans-serif;
    font-weight: 300;
    font-size: clamp(0.85rem, 1.4vw, 1rem);
    color: var(--terracotta-light);
    letter-spacing: 0.08em;
}

/* Tatami Grid */
.tatami-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: clamp(8px, 1.5vw, 16px);
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 clamp(16px, 3vw, 32px) 10vh;
}

/* Cards */
.card {
    position: relative;
    background: linear-gradient(145deg, rgba(68,64,60,0.5), rgba(28,25,23,0.9));
    border: 1px solid rgba(194,112,62,0.12);
    border-radius: 4px;
    padding: clamp(20px, 3vw, 36px);
    cursor: pointer;
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 500ms ease, transform 500ms cubic-bezier(0.23,1,0.32,1);
}

.card.visible {
    opacity: 1;
    transform: translateY(0);
}

.card-1x1 { grid-column: span 2; }
.card-2x1 { grid-column: span 4; }
.card-1x2 { grid-column: span 2; grid-row: span 2; }

@media(hover:hover){
    .card:hover {
        border-color: rgba(224,122,58,0.3);
        transform: perspective(800px) rotateX(-2deg) translateY(-4px);
        box-shadow: 0 12px 40px rgba(0,0,0,0.4), 0 0 30px rgba(224,122,58,0.06);
        transition-duration: 400ms;
    }
    .card:hover .card-depth {
        opacity: 1;
        transform: translateY(0);
    }
}

.card-face {
    position: relative;
    z-index: 2;
}

.card-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 1rem;
}

.card-icon svg {
    width: 100%;
    height: 100%;
}

.card h2 {
    font-family: 'Bricolage Grotesque', sans-serif;
    font-weight: 700;
    font-size: clamp(1.4rem, 3vw, 2.2rem);
    letter-spacing: -0.01em;
    color: var(--parchment);
    margin-bottom: 0.5rem;
}

.card-depth {
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 400ms ease, transform 400ms ease;
    margin-top: 0.75rem;
}

.card-depth p {
    color: var(--parchment-warm);
    font-size: clamp(0.88rem, 1.3vw, 1rem);
    margin-bottom: 0.5rem;
}

.card-depth p:last-child { margin-bottom: 0; }

/* Final card */
.card-final {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    grid-column: span 6;
}

.final-quote {
    font-family: 'Bricolage Grotesque', sans-serif;
    font-weight: 400;
    font-size: clamp(1.4rem, 3vw, 2rem);
    color: var(--terracotta-light);
    font-style: italic;
    margin-bottom: 1rem;
}

.final-mark {
    font-family: 'Inter', sans-serif;
    font-weight: 300;
    font-size: 0.85rem;
    letter-spacing: 0.12em;
    color: var(--terracotta);
    opacity: 0.6;
}

/* Responsive */
@media (max-width: 768px) {
    .tatami-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .card-1x1, .card-2x1, .card-1x2 {
        grid-column: span 2;
        grid-row: span 1;
    }
    .card-final { grid-column: span 2; }
    .card-depth { opacity: 1; transform: translateY(0); }
}

@media (max-width: 480px) {
    .tatami-grid {
        grid-template-columns: 1fr;
    }
    .card-1x1, .card-2x1, .card-1x2, .card-final {
        grid-column: span 1;
    }
}