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

:root {
    /* Warm, sun-bleached earth tones */
    --sand: #E8DCC4;
    --parchment: #F5EFE0;
    --terracotta: #C67B5C;
    --sage: #8B9B7E;
    --charcoal: #2A2520;
    --ink: #3D3128;
    --aged-white: #FDFBF7;

    /* Shadows with warmth */
    --shadow-warm: rgba(70, 50, 30, 0.12);
    --shadow-deep: rgba(70, 50, 30, 0.20);
}

body {
    background: linear-gradient(135deg, var(--parchment) 0%, var(--sand) 100%);
    background-attachment: fixed;
    color: var(--ink);
    font-family: 'Crimson Text', Georgia, serif;
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    position: relative;
}

/* Organic paper texture overlay */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.4;
    pointer-events: none;
    background-image:
        repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(70, 50, 30, 0.03) 2px, rgba(70, 50, 30, 0.03) 4px),
        repeating-linear-gradient(90deg, transparent, transparent 2px, rgba(70, 50, 30, 0.03) 2px, rgba(70, 50, 30, 0.03) 4px);
    mix-blend-mode: multiply;
}

/* Subtle grain */
body::after {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    opacity: 0.08;
    pointer-events: none;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='2.5' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* Navigation */
nav {
    padding: 2rem clamp(1.5rem, 5vw, 4rem);
    position: relative;
    z-index: 10;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--charcoal);
    text-decoration: none;
    transition: all 0.3s ease;
    letter-spacing: 0.02em;
    font-family: 'Crimson Pro', serif;
}

.back-link::before {
    content: '←';
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

.back-link:hover {
    color: var(--terracotta);
    transform: translateX(-2px);
}

.back-link:hover::before {
    transform: translateX(-3px);
}

header {
    padding: 2rem 2rem 3rem;
    text-align: center;
    position: relative;
    z-index: 10;
}

h1 {
    font-family: 'Crimson Pro', serif;
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 700;
    color: var(--charcoal);
    margin-bottom: 0.75rem;
    letter-spacing: -0.03em;
    line-height: 0.95;
    text-shadow: 2px 2px 0 rgba(139, 155, 126, 0.1);
}

.subtitle {
    font-size: 1.1rem;
    color: var(--sage);
    font-weight: 400;
    font-style: italic;
    letter-spacing: 0.03em;
}

.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 4rem 3rem;
    padding: 2rem clamp(2rem, 5vw, 5rem) 5rem;
    max-width: 1800px;
    margin: 0 auto;
    position: relative;
    z-index: 5;
}

.postcard {
    position: relative;
    background: var(--aged-white);
    padding: 1rem;
    box-shadow:
        0 2px 8px var(--shadow-warm),
        0 8px 24px rgba(70, 50, 30, 0.08);
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    animation: floatIn 0.8s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
    opacity: 0;
    transform-origin: center center;
}

@keyframes floatIn {
    from {
        opacity: 0;
        transform: translateY(30px) rotate(0deg) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) rotate(var(--rotation)) scale(1);
    }
}

/* Staggered animation with varied delays */
.postcard:nth-child(1) { animation-delay: 0.05s; --rotation: -2.1deg; }
.postcard:nth-child(2) { animation-delay: 0.1s; --rotation: 1.8deg; }
.postcard:nth-child(3) { animation-delay: 0.15s; --rotation: -1.2deg; }
.postcard:nth-child(4) { animation-delay: 0.2s; --rotation: 2.4deg; }
.postcard:nth-child(5) { animation-delay: 0.25s; --rotation: -1.8deg; }
.postcard:nth-child(6) { animation-delay: 0.3s; --rotation: 1.5deg; }
.postcard:nth-child(7) { animation-delay: 0.35s; --rotation: -2.3deg; }
.postcard:nth-child(8) { animation-delay: 0.4s; --rotation: 1.9deg; }
.postcard:nth-child(9) { animation-delay: 0.45s; --rotation: -1.4deg; }
.postcard:nth-child(10) { animation-delay: 0.5s; --rotation: 2.2deg; }
.postcard:nth-child(11) { animation-delay: 0.55s; --rotation: -1.7deg; }
.postcard:nth-child(12) { animation-delay: 0.6s; --rotation: 2deg; }
.postcard:nth-child(13) { animation-delay: 0.65s; --rotation: -2deg; }
.postcard:nth-child(14) { animation-delay: 0.7s; --rotation: 1.6deg; }
.postcard:nth-child(15) { animation-delay: 0.75s; --rotation: -1.5deg; }
.postcard:nth-child(16) { animation-delay: 0.8s; --rotation: 2.3deg; }
.postcard:nth-child(17) { animation-delay: 0.85s; --rotation: -1.9deg; }
.postcard:nth-child(18) { animation-delay: 0.9s; --rotation: 1.7deg; }
.postcard:nth-child(19) { animation-delay: 0.95s; --rotation: -2.2deg; }

/* Vintage tape effect on corners */
.postcard::before,
.postcard::after {
    content: '';
    position: absolute;
    width: 50px;
    height: 20px;
    background: rgba(198, 123, 92, 0.3);
    z-index: 10;
    box-shadow: inset 0 0 3px rgba(0, 0, 0, 0.1);
}

.postcard::before {
    top: -8px;
    left: 20%;
    transform: rotate(-5deg);
}

.postcard::after {
    bottom: -8px;
    right: 25%;
    transform: rotate(3deg);
}

.postcard:hover {
    transform: rotate(0deg) translateY(-8px) scale(1.02);
    box-shadow:
        0 8px 24px var(--shadow-deep),
        0 16px 48px rgba(70, 50, 30, 0.15);
    z-index: 20;
}

.postcard img {
    display: block;
    width: 100%;
    height: auto;
    object-fit: cover;
    object-position: center;
    aspect-ratio: 4 / 5;
    border: 3px solid var(--aged-white);
    box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.05);
}

footer {
    text-align: center;
    padding: 4rem 2rem 3rem;
    font-size: 0.9rem;
    color: var(--sage);
    position: relative;
    z-index: 10;
    font-style: italic;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    nav {
        padding: 1.5rem 1.5rem;
    }

    h1 {
        font-size: clamp(2.5rem, 10vw, 4rem);
    }

    .gallery {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
        gap: 3rem 2rem;
        padding: 1.5rem 1.5rem 4rem;
    }

    .postcard {
        padding: 0.75rem;
    }

    .postcard::before,
    .postcard::after {
        width: 40px;
        height: 16px;
    }

    header {
        padding: 2rem 1.5rem 2rem;
    }
}

@media (max-width: 480px) {
    .gallery {
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
        gap: 2.5rem 1.5rem;
    }

    .subtitle {
        font-size: 1rem;
    }
}