/* ===================================================================
   reiwa.day -- v2
   Cyberpunk archival chronicle of the Reiwa era.
   Card-grid layout, deep burgundy palette, marble-texture surfaces,
   path-draw-svg botanical animations, serif-classic typography.
   =================================================================== */

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Noto Serif JP', 'Playfair Display', Georgia, serif;
    background: #4A1A2E;
    color: #F0E8E0;
    font-size: clamp(16px, 1.5vw, 18px);
    line-height: 1.75;
    overflow-x: hidden;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* ---- Marble texture mixin ---- */
/* CSS-generated marble: layered radial + linear gradients + noise */
.marble {
    background-color: #F0E8E0;
    background-image:
        radial-gradient(ellipse at 20% 30%, rgba(200,184,168,0.55) 0%, transparent 40%),
        radial-gradient(ellipse at 80% 60%, rgba(200,184,168,0.45) 0%, transparent 45%),
        radial-gradient(ellipse at 50% 80%, rgba(200,160,120,0.18) 0%, transparent 50%),
        linear-gradient(115deg, transparent 30%, rgba(200,184,168,0.30) 31%, transparent 33%),
        linear-gradient(75deg, transparent 55%, rgba(200,184,168,0.22) 56%, transparent 58%),
        linear-gradient(160deg, transparent 70%, rgba(74,26,46,0.10) 71%, transparent 72%),
        linear-gradient(180deg, #F0E8E0 0%, #EADFD2 100%);
}

.marble-dark {
    background-color: #4A1A2E;
    background-image:
        radial-gradient(ellipse at 25% 20%, rgba(200,184,168,0.10) 0%, transparent 40%),
        radial-gradient(ellipse at 75% 70%, rgba(200,160,120,0.08) 0%, transparent 45%),
        linear-gradient(110deg, transparent 40%, rgba(200,184,168,0.06) 41%, transparent 43%),
        linear-gradient(70deg, transparent 60%, rgba(200,184,168,0.05) 61%, transparent 63%),
        linear-gradient(180deg, #4A1A2E 0%, #2A0A1A 100%);
}

/* =============================================================
   CALENDAR GATE
   ============================================================= */
.calendar-gate {
    position: relative;
    min-height: 100vh;
    background: #4A1A2E;
    background-image:
        radial-gradient(ellipse at 20% 80%, rgba(74,139,107,0.05) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(200,160,120,0.06) 0%, transparent 60%),
        linear-gradient(180deg, #4A1A2E 0%, #3A1424 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 80px 32px 120px;
}

.gate-marble-panel {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 18vw;
    min-width: 140px;
    max-width: 280px;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 1.2s ease, transform 1.2s ease;
    background-color: #4A1A2E;
    background-image:
        radial-gradient(ellipse at 30% 30%, rgba(200,184,168,0.12) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(200,160,120,0.08) 0%, transparent 50%),
        linear-gradient(120deg, transparent 35%, rgba(200,184,168,0.07) 36%, transparent 38%),
        linear-gradient(80deg, transparent 60%, rgba(200,184,168,0.05) 61%, transparent 63%);
}

.gate-marble-panel.is-revealed {
    opacity: 0.55;
    transform: translateY(0);
}

.gate-panel-left {
    left: 0;
    border-right: 1px solid rgba(200,160,120,0.18);
}

.gate-panel-right {
    right: 0;
    border-left: 1px solid rgba(200,160,120,0.18);
}

.gate-frame-wrapper {
    position: relative;
    width: min(800px, 92vw);
    aspect-ratio: 800 / 540;
    z-index: 2;
}

.gate-frame {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

/* Path-draw setup */
.gate-frame .frame-rect,
.gate-frame .frame-rect-inner,
.gate-frame .frame-flora path,
.gate-frame .frame-flora circle,
.gate-frame .frame-flora ellipse {
    stroke-dasharray: 1200;
    stroke-dashoffset: 1200;
    transition: stroke-dashoffset 2.5s ease;
}

.gate-frame.is-drawing .frame-rect,
.gate-frame.is-drawing .frame-rect-inner,
.gate-frame.is-drawing .frame-flora path,
.gate-frame.is-drawing .frame-flora circle,
.gate-frame.is-drawing .frame-flora ellipse {
    stroke-dashoffset: 0;
}

.gate-content {
    position: relative;
    z-index: 3;
    text-align: center;
    padding: clamp(24px, 6vw, 64px);
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 1.2s ease 1.5s;
}

.gate-content.is-revealed {
    opacity: 1;
}

.gate-era {
    font-family: 'Fira Code', monospace;
    font-size: 13px;
    letter-spacing: 0.4em;
    color: #C8A040;
    margin-bottom: 24px;
    text-transform: uppercase;
}

.gate-wordmark {
    font-family: 'Playfair Display', Georgia, serif;
    font-weight: 700;
    font-size: clamp(54px, 10vw, 112px);
    line-height: 1;
    color: #F0E8E0;
    letter-spacing: -0.02em;
    margin-bottom: 18px;
    text-shadow: 0 2px 24px rgba(74,26,46,0.5);
}

.gate-dot {
    color: #C8A040;
    font-style: italic;
    display: inline-block;
    transform: translateY(-0.05em);
}

.gate-tagline {
    font-family: 'Playfair Display', Georgia, serif;
    font-style: italic;
    font-weight: 400;
    font-size: clamp(16px, 1.8vw, 22px);
    color: #C8B8A8;
    margin-bottom: 32px;
    letter-spacing: 0.02em;
}

.gate-meta {
    font-family: 'Fira Code', monospace;
    font-size: 12px;
    letter-spacing: 0.18em;
    color: #C8A040;
    text-transform: uppercase;
    opacity: 0.85;
}

.gate-scroll-cue {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    z-index: 3;
    opacity: 0;
    transition: opacity 1s ease 2.5s;
}

.gate-scroll-cue.is-revealed {
    opacity: 0.7;
}

.cue-line {
    width: 1px;
    height: 36px;
    background: linear-gradient(to bottom, transparent, #C8A040);
    animation: scrollPulse 2.4s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { transform: scaleY(1); opacity: 0.7; }
    50% { transform: scaleY(1.4); opacity: 1; }
}

.cue-text {
    font-family: 'Fira Code', monospace;
    font-size: 11px;
    color: #C8B8A8;
    letter-spacing: 0.3em;
    text-transform: uppercase;
}

/* =============================================================
   SECTION SHARED HEADER
   ============================================================= */
.section-header {
    max-width: 1000px;
    margin: 0 auto 56px;
    padding: 0 32px;
    text-align: left;
    border-left: 2px solid #C8A040;
    padding-left: 24px;
}

.section-label {
    font-family: 'Fira Code', monospace;
    font-size: 12px;
    letter-spacing: 0.3em;
    color: #C8A040;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.section-title {
    font-family: 'Playfair Display', Georgia, serif;
    font-weight: 700;
    font-size: clamp(28px, 4vw, 52px);
    line-height: 1.1;
    color: #F0E8E0;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.section-lede {
    font-family: 'Noto Serif JP', 'Playfair Display', Georgia, serif;
    font-style: italic;
    font-size: clamp(16px, 1.4vw, 18px);
    line-height: 1.7;
    color: #C8B8A8;
    max-width: 640px;
}

/* =============================================================
   DAY GRID
   ============================================================= */
.day-grid-section {
    padding: 120px 0 100px;
    background: linear-gradient(180deg, #4A1A2E 0%, #3A1424 100%);
    position: relative;
}

.day-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 32px;
}

@media (max-width: 760px) {
    .day-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
}

@media (max-width: 460px) {
    .day-grid {
        grid-template-columns: 1fr;
    }
}

.day-card {
    position: relative;
    aspect-ratio: 1 / 1.18;
    padding: 22px 20px;
    border: 1px solid #4A1A2E;
    border-radius: 2px;
    background-color: #F0E8E0;
    background-image:
        radial-gradient(ellipse at 25% 25%, rgba(200,184,168,0.6) 0%, transparent 45%),
        radial-gradient(ellipse at 75% 75%, rgba(200,184,168,0.5) 0%, transparent 50%),
        radial-gradient(ellipse at 60% 30%, rgba(200,160,120,0.18) 0%, transparent 50%),
        linear-gradient(115deg, transparent 30%, rgba(200,184,168,0.32) 31%, transparent 33%),
        linear-gradient(75deg, transparent 55%, rgba(200,184,168,0.24) 56%, transparent 58%),
        linear-gradient(160deg, transparent 65%, rgba(74,26,46,0.08) 66%, transparent 67%),
        linear-gradient(180deg, #F0E8E0 0%, #EADFD2 100%);
    color: #4A1A2E;
    overflow: hidden;
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.9s ease, transform 0.9s ease, box-shadow 0.4s ease, border-color 0.4s ease;
    cursor: default;
}

.day-card.is-revealed {
    opacity: 1;
    transform: translateY(0);
}

.day-card:hover {
    box-shadow: 0 8px 32px rgba(0,0,0,0.32), 0 0 0 1px #C8A040 inset;
    border-color: #C8A040;
}

/* Marble vein overlays per card */
.day-card::before {
    content: '';
    position: absolute;
    top: 6px;
    right: 6px;
    bottom: 6px;
    left: 6px;
    border: 1px solid rgba(74,26,46,0.18);
    pointer-events: none;
}

.day-card-corner {
    position: absolute;
    width: 56px;
    height: 56px;
    pointer-events: none;
}

.day-card-corner svg {
    width: 100%;
    height: 100%;
    display: block;
}

.day-card-corner.tl { top: 6px; left: 6px; }
.day-card-corner.br { bottom: 6px; right: 6px; transform: rotate(180deg); }

.day-card-corner path,
.day-card-corner circle,
.day-card-corner ellipse {
    stroke-dasharray: 200;
    stroke-dashoffset: 200;
    transition: stroke-dashoffset 2s ease;
}

.day-card.is-revealed .day-card-corner path,
.day-card.is-revealed .day-card-corner circle,
.day-card.is-revealed .day-card-corner ellipse {
    stroke-dashoffset: 0;
}

.day-card-date {
    font-family: 'Fira Code', monospace;
    font-size: 11px;
    letter-spacing: 0.2em;
    color: #4A1A2E;
    opacity: 0.65;
    margin-bottom: 4px;
    text-transform: uppercase;
}

.day-card-num {
    font-family: 'Playfair Display', Georgia, serif;
    font-weight: 700;
    font-size: 44px;
    line-height: 1;
    color: #4A1A2E;
    margin: 14px 0 6px;
}

.day-card-num-sup {
    font-family: 'Playfair Display', Georgia, serif;
    font-style: italic;
    font-size: 16px;
    color: #C8A040;
    vertical-align: super;
    margin-left: 4px;
}

.day-card-jp {
    font-family: 'Noto Serif JP', serif;
    font-size: 14px;
    color: #4A1A2E;
    opacity: 0.78;
    margin-bottom: 18px;
}

.day-card-flora {
    font-family: 'Playfair Display', Georgia, serif;
    font-style: italic;
    font-size: 15px;
    color: #4A1A2E;
    margin-top: auto;
    border-top: 1px solid rgba(74,26,46,0.22);
    padding-top: 10px;
}

.day-card-flora-jp {
    font-family: 'Noto Serif JP', serif;
    font-style: normal;
    font-size: 12px;
    color: #C8A040;
    margin-left: 6px;
    letter-spacing: 0.05em;
}

.day-card-stamp {
    position: absolute;
    bottom: 14px;
    right: 14px;
    width: 28px;
    height: 28px;
    border: 1px solid #C8A040;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Fira Code', monospace;
    font-size: 9px;
    color: #C8A040;
    letter-spacing: 0.1em;
    background: rgba(240,232,224,0.4);
}

/* Featured card variant: spans 2 columns */
.day-card.is-featured {
    grid-column: span 2;
    aspect-ratio: 2.04 / 1.18;
}

@media (max-width: 460px) {
    .day-card.is-featured {
        grid-column: span 1;
        aspect-ratio: 1 / 1.18;
    }
}

.day-card.is-featured .day-card-num {
    font-size: 64px;
}

.day-card.is-featured .day-card-flora {
    font-size: 17px;
}

/* Today card */
.day-card.is-today {
    background-color: #4A1A2E;
    background-image:
        radial-gradient(ellipse at 25% 25%, rgba(200,184,168,0.10) 0%, transparent 50%),
        radial-gradient(ellipse at 75% 75%, rgba(200,160,120,0.10) 0%, transparent 50%),
        linear-gradient(120deg, transparent 35%, rgba(200,184,168,0.06) 36%, transparent 38%),
        linear-gradient(80deg, transparent 60%, rgba(200,184,168,0.05) 61%, transparent 63%),
        linear-gradient(180deg, #4A1A2E 0%, #2A0A1A 100%);
    color: #F0E8E0;
    border-color: #C8A040;
}

.day-card.is-today .day-card-date,
.day-card.is-today .day-card-num,
.day-card.is-today .day-card-jp,
.day-card.is-today .day-card-flora {
    color: #F0E8E0;
}

.day-card.is-today .day-card-num-sup {
    color: #D88BAF;
}

.day-card.is-today .day-card-flora {
    border-top-color: rgba(240,232,224,0.22);
}

.day-card.is-today::before {
    border-color: rgba(200,160,120,0.32);
}

/* =============================================================
   SEASON SECTIONS
   ============================================================= */
.season {
    padding: 120px 32px;
    display: grid;
    grid-template-columns: 80px 1fr 360px;
    gap: 48px;
    max-width: 1280px;
    margin: 0 auto;
    align-items: start;
    position: relative;
}

@media (max-width: 880px) {
    .season {
        grid-template-columns: 1fr;
        gap: 24px;
        padding: 80px 24px;
    }
}

.season-meta {
    border-top: 2px solid #C8A040;
    padding-top: 16px;
    text-align: left;
}

.season-roman {
    font-family: 'Fira Code', monospace;
    font-size: 11px;
    letter-spacing: 0.3em;
    color: #C8A040;
    margin-bottom: 20px;
}

.season-kanji {
    font-family: 'Noto Serif JP', serif;
    font-weight: 700;
    font-size: 56px;
    line-height: 1;
    color: #F0E8E0;
}

.season-body {
    max-width: 600px;
}

.season-title {
    font-family: 'Playfair Display', Georgia, serif;
    font-weight: 700;
    font-size: clamp(28px, 3.6vw, 46px);
    line-height: 1.1;
    color: #F0E8E0;
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}

.season-period {
    font-family: 'Fira Code', monospace;
    font-size: 12px;
    letter-spacing: 0.25em;
    color: #C8A040;
    text-transform: uppercase;
    margin-bottom: 24px;
}

.season-text {
    font-family: 'Noto Serif JP', 'Playfair Display', Georgia, serif;
    font-size: clamp(15px, 1.3vw, 17px);
    line-height: 1.85;
    color: #C8B8A8;
    margin-bottom: 32px;
}

.season-flora {
    list-style: none;
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    border-top: 1px solid rgba(200,184,168,0.18);
    padding-top: 20px;
}

.season-flora li {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 80px;
}

.flora-name {
    font-family: 'Playfair Display', Georgia, serif;
    font-style: italic;
    font-size: 16px;
    color: #F0E8E0;
}

.flora-jp {
    font-family: 'Noto Serif JP', serif;
    font-size: 14px;
    color: #D88BAF;
}

.flora-month {
    font-family: 'Fira Code', monospace;
    font-size: 10px;
    letter-spacing: 0.2em;
    color: #C8A040;
    text-transform: uppercase;
}

.season-svg-wrap {
    position: relative;
    width: 100%;
    max-width: 360px;
    aspect-ratio: 1;
    background-color: #F0E8E0;
    background-image:
        radial-gradient(ellipse at 30% 30%, rgba(200,184,168,0.55) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 70%, rgba(200,184,168,0.45) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(200,160,120,0.18) 0%, transparent 60%),
        linear-gradient(115deg, transparent 30%, rgba(200,184,168,0.28) 31%, transparent 33%),
        linear-gradient(75deg, transparent 55%, rgba(200,184,168,0.22) 56%, transparent 58%),
        linear-gradient(160deg, transparent 70%, rgba(74,26,46,0.08) 71%, transparent 72%),
        linear-gradient(180deg, #F0E8E0 0%, #EADFD2 100%);
    border: 1px solid rgba(200,160,120,0.4);
    padding: 20px;
}

.season-svg-wrap::before {
    content: '';
    position: absolute;
    top: 8px;
    right: 8px;
    bottom: 8px;
    left: 8px;
    border: 1px solid rgba(74,26,46,0.18);
    pointer-events: none;
}

.season-svg {
    width: 100%;
    height: 100%;
    display: block;
}

/* Season SVG path-draw */
.season-svg .season-stem,
.season-svg .season-flowers path,
.season-svg .season-flowers circle,
.season-svg .season-flowers ellipse {
    stroke-dasharray: 600;
    stroke-dashoffset: 600;
    transition: stroke-dashoffset 2s ease;
}

.season.is-revealed .season-svg .season-stem,
.season.is-revealed .season-svg .season-flowers path,
.season.is-revealed .season-svg .season-flowers circle,
.season.is-revealed .season-svg .season-flowers ellipse {
    stroke-dashoffset: 0;
}

/* Seasonal palette emphases */
.season-spring {
    background: linear-gradient(180deg, #3A1424 0%, #4A1A2E 100%);
}

.season-spring .flora-jp { color: #D88BAF; }

.season-summer {
    background: linear-gradient(180deg, #4A1A2E 0%, #3A1828 100%);
}

.season-summer .flora-jp { color: #4A8B6B; }
.season-summer .season-kanji { color: #4A8B6B; }

.season-autumn {
    background: linear-gradient(180deg, #3A1828 0%, #4A1A2E 100%);
}

.season-autumn .flora-jp { color: #C8A040; }
.season-autumn .season-kanji { color: #C8A040; }

.season-winter {
    background: linear-gradient(180deg, #4A1A2E 0%, #2A0A1A 100%);
}

.season-winter .flora-jp { color: #C8B8A8; }
.season-winter .season-kanji { color: #C8B8A8; }

/* =============================================================
   INDEX TABLET (era index)
   ============================================================= */
.index-tablet {
    padding: 100px 32px;
    background: #2A0A1A;
    background-image:
        radial-gradient(ellipse at 20% 50%, rgba(200,184,168,0.06) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 50%, rgba(200,160,120,0.05) 0%, transparent 60%),
        linear-gradient(180deg, #2A0A1A 0%, #1F0613 100%);
}

.index-rows {
    max-width: 1000px;
    margin: 0 auto;
    border-top: 1px solid rgba(200,160,120,0.3);
}

.index-row {
    display: grid;
    grid-template-columns: 100px 1fr 1fr 80px;
    gap: 24px;
    padding: 22px 16px;
    border-bottom: 1px solid rgba(200,184,168,0.12);
    align-items: baseline;
    opacity: 0;
    transform: translateX(-12px);
    transition: opacity 0.7s ease, transform 0.7s ease, background-color 0.3s ease;
}

.index-row.is-revealed {
    opacity: 1;
    transform: translateX(0);
}

.index-row:hover {
    background: rgba(200,160,120,0.05);
}

@media (max-width: 760px) {
    .index-row {
        grid-template-columns: 80px 1fr 60px;
    }
    .index-row .index-cell-jp {
        display: none;
    }
}

.index-cell-year {
    font-family: 'Fira Code', monospace;
    font-size: 14px;
    letter-spacing: 0.18em;
    color: #C8A040;
    text-transform: uppercase;
}

.index-cell-event {
    font-family: 'Playfair Display', Georgia, serif;
    font-weight: 400;
    font-size: 18px;
    color: #F0E8E0;
}

.index-cell-jp {
    font-family: 'Noto Serif JP', serif;
    font-size: 15px;
    color: #C8B8A8;
}

.index-cell-marker {
    font-family: 'Fira Code', monospace;
    font-size: 11px;
    color: #D88BAF;
    text-align: right;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

/* =============================================================
   TWILIGHT FOOTER
   ============================================================= */
.twilight-footer {
    padding: 80px 32px 60px;
    background: #2A0A1A;
    background-image:
        radial-gradient(ellipse at 20% 80%, rgba(200,184,168,0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(200,160,120,0.06) 0%, transparent 50%),
        linear-gradient(180deg, #2A0A1A 0%, #1A050D 100%);
}

.footer-marble {
    max-width: 1000px;
    margin: 0 auto;
    border-top: 1px solid rgba(200,160,120,0.4);
    padding-top: 48px;
    position: relative;
}

.footer-flora-wrap {
    position: absolute;
    top: -40px;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 80px;
    background: #2A0A1A;
    padding: 16px 24px;
}

.footer-flora {
    width: 100%;
    height: 100%;
    display: block;
}

.footer-flora path,
.footer-flora circle {
    stroke-dasharray: 400;
    stroke-dashoffset: 400;
    transition: stroke-dashoffset 2s ease;
}

.twilight-footer.is-revealed .footer-flora path,
.twilight-footer.is-revealed .footer-flora circle {
    stroke-dashoffset: 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 40px;
}

@media (max-width: 640px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

.footer-col {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.footer-label {
    font-family: 'Fira Code', monospace;
    font-size: 11px;
    letter-spacing: 0.3em;
    color: #C8A040;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.footer-line {
    font-family: 'Playfair Display', Georgia, serif;
    font-weight: 700;
    font-size: 22px;
    color: #F0E8E0;
}

.footer-col:nth-child(3) .footer-line {
    font-family: 'Noto Serif JP', serif;
}

.footer-line-sub {
    font-family: 'Playfair Display', Georgia, serif;
    font-style: italic;
    font-size: 13px;
    color: #C8B8A8;
}

.footer-rule {
    font-family: 'Playfair Display', Georgia, serif;
    font-style: italic;
    font-size: 14px;
    color: #C8B8A8;
    text-align: center;
    border-top: 1px solid rgba(200,184,168,0.18);
    padding-top: 20px;
    letter-spacing: 0.02em;
}