/* ========================================
   okurairi.com — Chrome-Plated Vault
   ======================================== */

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

:root {
    --chrome: #c8cdd0;
    --archive-black: #0d0f12;
    --frosted: #e8ecef;
    --red: #c4342d;
    --patina: #5a7f6e;
    --cream: #f5f0e6;
    --gold: #b8943e;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--archive-black);
    color: var(--frosted);
    font-family: 'IBM Plex Sans', sans-serif;
    font-weight: 400;
    font-size: clamp(0.9rem, 1.2vw, 1.05rem);
    line-height: 1.65;
    overflow-x: hidden;
}

.svg-defs {
    position: absolute;
    width: 0;
    height: 0;
}

/* ========================================
   VAULT DOOR
   ======================================== */

#vault-door {
    position: relative;
    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--archive-black);
    overflow: hidden;
}

.vault-surface {
    position: relative;
    width: 80vw;
    max-width: 900px;
    height: 60vh;
    background: linear-gradient(135deg, #b0b5b9, #c8cdd0 30%, #e8ecef 50%, #c8cdd0 70%, #a8adb1);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.8s ease-in-out;
    z-index: 2;
}

.vault-surface::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='0.08'/%3E%3C/svg%3E");
    pointer-events: none;
}

.vault-surface.visible {
    opacity: 1;
}

.vault-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.vault-title {
    font-family: 'Bungee Shade', cursive;
    font-size: clamp(3rem, 8vw, 7rem);
    color: var(--archive-black);
    text-shadow: 
        -1px -1px 0 rgba(0,0,0,0.4),
        1px 1px 0 rgba(255,255,255,0.3),
        0 0 20px rgba(0,0,0,0.1);
    letter-spacing: 0.04em;
    min-height: 1.2em;
    line-height: 1.2;
}

.vault-subtitle {
    font-family: 'Archivo Black', sans-serif;
    font-size: clamp(1rem, 2.5vw, 1.6rem);
    letter-spacing: 0.3em;
    color: var(--archive-black);
    opacity: 0;
    transition: opacity 0.6s ease-in-out 0.3s;
    margin-top: 1rem;
}

.vault-subtitle.visible {
    opacity: 0.7;
}

.security-light {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--red);
    margin: 2rem auto 0;
    opacity: 0;
    transition: opacity 0.4s ease;
    animation: pulse-attention 3s ease-in-out infinite;
}

.security-light.visible {
    opacity: 1;
}

@keyframes pulse-attention {
    0%, 100% { filter: brightness(0.6); box-shadow: 0 0 6px var(--red); }
    50% { filter: brightness(1); box-shadow: 0 0 18px var(--red), 0 0 40px rgba(196,52,45,0.3); }
}

/* Vault split halves for scroll reveal */
.vault-top-half,
.vault-bottom-half {
    position: absolute;
    left: 0;
    width: 100%;
    height: 50vh;
    z-index: 10;
    pointer-events: none;
    transition: transform 0.6s ease-in-out;
}

.vault-top-half {
    top: 0;
    background: var(--archive-black);
    transform: translateY(-100%);
    border-bottom: 1px solid var(--gold);
}

.vault-bottom-half {
    bottom: 0;
    background: var(--archive-black);
    transform: translateY(100%);
    border-top: 1px solid var(--gold);
}

.vault-top-half.closing {
    transform: translateY(0);
}

.vault-bottom-half.closing {
    transform: translateY(0);
}

.scroll-hint {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    z-index: 3;
    opacity: 0;
    transition: opacity 0.6s ease 2s;
}

.scroll-hint.visible {
    opacity: 0.5;
}

.scroll-hint-text {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--chrome);
    display: block;
    margin-bottom: 0.5rem;
}

.scroll-arrow {
    width: 1px;
    height: 20px;
    background: var(--chrome);
    margin: 0 auto;
    animation: arrow-bounce 2s ease-in-out infinite;
}

@keyframes arrow-bounce {
    0%, 100% { transform: translateY(0); opacity: 0.3; }
    50% { transform: translateY(8px); opacity: 0.8; }
}

/* ========================================
   DRAWER NAVIGATION
   ======================================== */

#drawer-nav {
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    z-index: 100;
    display: none;
}

#drawer-nav.active {
    display: block;
}

.cabinet-rail {
    position: absolute;
    left: 0;
    top: 0;
    width: 40px;
    height: 100%;
    background: linear-gradient(180deg, #9a9fa3, #c8cdd0 30%, #b0b5b9 70%, #8a8f93);
    border-right: 1px solid rgba(184, 148, 62, 0.3);
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 2px;
}

.drawer-tab {
    width: 48px;
    height: 40px;
    background: var(--gold);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: 4px;
    cursor: pointer;
    transition: all 0.3s ease-in-out;
    border-radius: 0 3px 3px 0;
    position: relative;
}

.drawer-tab:hover {
    width: 56px;
    background: var(--red);
}

.tab-label {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.55rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--archive-black);
    writing-mode: vertical-rl;
    text-orientation: mixed;
    transform: rotate(180deg);
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.drawer-tab:hover .tab-label {
    opacity: 1;
}

.drawer-panel {
    position: absolute;
    left: 40px;
    top: 0;
    width: 280px;
    height: 100%;
    background: rgba(232, 236, 239, 0.12);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-right: 1px solid rgba(184, 148, 62, 0.2);
    transform: translateX(-280px);
    transition: transform 0.4s ease-in-out;
    padding: 2rem 1.2rem;
    overflow-y: auto;
    pointer-events: none;
}

.drawer-panel.open {
    transform: translateX(0);
    pointer-events: all;
}

.drawer-panel-content {
    font-family: 'IBM Plex Sans', sans-serif;
}

.drawer-panel-content h4 {
    font-family: 'Archivo Black', sans-serif;
    font-size: 1rem;
    color: var(--gold);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.drawer-panel-content .panel-item {
    padding: 0.8rem 0;
    border-bottom: 1px solid rgba(200, 205, 208, 0.15);
    cursor: pointer;
    transition: color 0.2s ease;
}

.drawer-panel-content .panel-item:hover {
    color: var(--red);
}

.panel-item-title {
    font-family: 'Archivo Black', sans-serif;
    font-size: 0.85rem;
    display: block;
}

.panel-item-date {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    color: var(--patina);
    display: block;
    margin-top: 0.2rem;
}

/* ========================================
   WAVE DIVIDERS
   ======================================== */

.wave-divider {
    width: 100%;
    height: 40px;
    overflow: hidden;
    padding: 1rem 0;
}

.wave-divider svg {
    width: 100%;
    height: 100%;
}

.seismo-wave {
    animation: wave-pulse 4s ease-in-out infinite;
}

@keyframes wave-pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

/* ========================================
   CATALOG GRID
   ======================================== */

#catalog {
    padding: 4rem 2rem 4rem 60px;
    min-height: 100vh;
    position: relative;
}

#catalog::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.5' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
    pointer-events: none;
}

.catalog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    position: relative;
}

.specimen-card {
    position: relative;
    background: rgba(232, 236, 239, 0.08);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid;
    border-image: linear-gradient(135deg, #c8cdd0, #e8ecef, #c8cdd0) 1;
    padding: 2rem 1.5rem;
    overflow: hidden;
    transition: transform 0.3s ease-in-out, box-shadow 0.3s ease-in-out;
    will-change: transform;
}

.specimen-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.specimen-card:hover .stamp-overlay {
    opacity: 0.5;
}

.specimen-card.span-2 {
    grid-row: span 2;
}

.specimen-card.tilted {
    transform: rotate(1deg);
}

.specimen-card.tilted:hover {
    transform: rotate(1deg) translateY(-4px);
}

.specimen-card.tilted-reverse {
    transform: rotate(-1.5deg);
}

.specimen-card.tilted-reverse:hover {
    transform: rotate(-1.5deg) translateY(-4px);
}

.pressed-flower {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    height: 80%;
    pointer-events: none;
}

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

.card-date {
    font-family: 'IBM Plex Mono', monospace;
    font-weight: 500;
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--chrome);
    opacity: 0.7;
}

.card-id {
    font-family: 'IBM Plex Mono', monospace;
    font-weight: 500;
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    color: var(--gold);
    float: right;
}

.card-title {
    font-family: 'Archivo Black', sans-serif;
    font-size: clamp(1.2rem, 3vw, 2rem);
    color: var(--cream);
    margin: 0.8rem 0 0.6rem;
    line-height: 1.2;
}

.card-desc {
    font-family: 'IBM Plex Sans', sans-serif;
    font-weight: 400;
    font-size: clamp(0.85rem, 1.1vw, 0.95rem);
    line-height: 1.6;
    color: var(--frosted);
    opacity: 0.8;
    margin-bottom: 1rem;
}

.card-tag {
    font-family: 'IBM Plex Mono', monospace;
    font-weight: 500;
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--patina);
    background: rgba(90, 127, 110, 0.12);
    padding: 0.25rem 0.6rem;
    display: inline-block;
}

.stamp-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(-12deg);
    font-family: 'IBM Plex Mono', monospace;
    font-weight: 500;
    font-size: 2.5rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--red);
    opacity: 0.25;
    pointer-events: none;
    white-space: nowrap;
    z-index: 3;
    transition: opacity 0.3s ease-in-out;
    border: 3px solid var(--red);
    padding: 0.2rem 0.8rem;
    border-radius: 4px;
}

/* Sonar ping on hover */
.specimen-card::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    border: 1px solid var(--red);
    opacity: 0;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 4;
}

.specimen-card:hover::after {
    animation: sonar-ping 0.8s ease-out;
}

@keyframes sonar-ping {
    0% { width: 0; height: 0; opacity: 0.6; }
    100% { width: 200px; height: 200px; opacity: 0; }
}

/* ========================================
   FOOTER
   ======================================== */

#vault-footer {
    padding: 4rem 2rem 6rem 60px;
    text-align: center;
}

.footer-text {
    font-family: 'IBM Plex Sans', sans-serif;
    font-weight: 400;
    font-size: 1rem;
    color: var(--chrome);
    opacity: 0.5;
    margin-bottom: 0.5rem;
}

.footer-code {
    font-family: 'IBM Plex Mono', monospace;
    font-weight: 500;
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--red);
    opacity: 0.4;
    display: block;
    margin-top: 2rem;
    animation: pulse-attention 4s ease-in-out infinite;
}

/* ========================================
   BOTTOM WAVEFORM MONITOR
   ======================================== */

#waveform-monitor {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 20px;
    z-index: 200;
    background: rgba(13, 15, 18, 0.8);
    border-top: 1px solid rgba(200, 205, 208, 0.1);
}

#waveform-svg {
    width: 100%;
    height: 100%;
}

#waveform-path {
    opacity: 0.3;
    transition: opacity 0.3s ease;
}

/* ========================================
   RESPONSIVE
   ======================================== */

@media (max-width: 768px) {
    #catalog {
        padding: 2rem 1rem 2rem 50px;
    }

    .catalog-grid {
        grid-template-columns: 1fr;
    }

    .specimen-card.span-2 {
        grid-row: span 1;
    }

    .vault-surface {
        width: 92vw;
        height: 50vh;
    }

    .stamp-overlay {
        font-size: 1.5rem;
    }

    .drawer-panel {
        width: 220px;
        transform: translateX(-220px);
    }
}