/* ============================================================
   kakuritsu.com — Vol. 02
   A zen-modern Tokyo magazine on probability.
   Seed: zen, magazine-spread, rounded-sans, jewel-tones,
         cursor-follow, abstract-shapes, city-urban, playful.
   ============================================================ */

:root {
    /* Paper & ink */
    --paper:        #f8f5ee;
    --paper-deep:   #efe8d6;
    --ink:          #1a1a22;
    --gutter-gray:  #b8b3a8;

    /* Jewel tones */
    --amethyst:     #7e3ff2;
    --ruby:         #d6336c;
    --peridot:      #2faa6e;
    --sapphire:     #1b6ec2;
    --citrine:      #e9b949;

    /* Editorial geometry */
    --gutter-x:     clamp(32px, 7vw, 120px);
    --gutter-y:     clamp(40px, 8vh, 96px);
    --rule:         1px solid var(--ink);
    --rule-soft:    1px solid var(--gutter-gray);

    /* Type scales */
    --type-display: clamp(48px, 10vw, 156px);
    --type-h2:      clamp(40px, 6vw, 92px);
    --type-body:    clamp(15px, 1.15vw, 17px);
    --type-meta:    11px;

    /* Easings */
    --ease-soft:    cubic-bezier(0.2, 0.7, 0.2, 1);
    --ease-pop:    cubic-bezier(0.34, 1.56, 0.64, 1);

    /* Active jewel — set by JS as user scrolls */
    --active-jewel: var(--amethyst);
}

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

html, body {
    background: var(--paper);
    color: var(--ink);
    font-family: 'Nunito', 'Quicksand', system-ui, sans-serif;
    font-size: var(--type-body);
    line-height: 1.85;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
    cursor: none;
}

@media (pointer: coarse) {
    body { cursor: auto; }
}

a { color: inherit; text-decoration: none; }
em { font-style: italic; color: var(--gutter-gray); }
button { font: inherit; color: inherit; background: none; border: 0; cursor: none; }

/* ============================================================
   CURSOR ORB
   ============================================================ */
#cursor-orb {
    position: fixed;
    top: 0;
    left: 0;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--active-jewel);
    mix-blend-mode: multiply;
    opacity: 0.55;
    pointer-events: none;
    z-index: 9000;
    transform: translate(-9999px, -9999px);
    transition: background 600ms var(--ease-soft), opacity 200ms var(--ease-soft), width 200ms var(--ease-soft), height 200ms var(--ease-soft);
    will-change: transform, background;
}

#cursor-orb.is-large {
    width: 56px;
    height: 56px;
    opacity: 0.4;
}

@media (pointer: coarse) {
    #cursor-orb { display: none; }
}

/* ============================================================
   PROGRESS BAR (top)
   ============================================================ */
#progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: transparent;
    z-index: 8000;
}
#progress-fill {
    height: 100%;
    width: 0%;
    background: var(--active-jewel);
    transition: width 120ms linear, background 600ms var(--ease-soft);
}

/* ============================================================
   MASTHEAD CORNER
   ============================================================ */
#masthead-corner {
    position: fixed;
    top: clamp(20px, 3vh, 36px);
    right: clamp(20px, 3vw, 40px);
    z-index: 7000;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 4px;
    cursor: none;
    transition: transform 200ms var(--ease-soft);
}
#masthead-corner:hover {
    transform: translateY(-2px);
}
.masthead-mark {
    font-family: 'Quicksand', sans-serif;
    font-weight: 700;
    font-size: 22px;
    letter-spacing: -0.04em;
    color: var(--ink);
}
.masthead-meta {
    font-family: 'Quicksand', sans-serif;
    font-weight: 500;
    font-size: 10px;
    letter-spacing: 0.22em;
    color: var(--gutter-gray);
    text-transform: uppercase;
}

/* ============================================================
   MAGAZINE / SPREADS
   ============================================================ */
#magazine {
    width: 100%;
}

.spread {
    position: relative;
    width: 100%;
    min-height: 100vh;
    padding: var(--gutter-y) var(--gutter-x);
    display: flex;
    align-items: stretch;
    justify-content: center;
    overflow: hidden;
}

.spread-inner {
    width: 100%;
    max-width: 1400px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(40px, 6vw, 96px);
    align-items: stretch;
}

.page {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    min-height: calc(100vh - 2 * var(--gutter-y));
}

.page-verso { padding-right: clamp(0px, 2vw, 24px); }
.page-recto { padding-left: clamp(0px, 2vw, 24px); }

.page-number {
    position: absolute;
    bottom: 0;
    left: 0;
    font-family: 'Quicksand', sans-serif;
    font-weight: 500;
    font-size: var(--type-meta);
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--gutter-gray);
}
.page-recto .page-number {
    left: auto;
    right: 0;
}

.spread-eyebrow {
    display: inline-block;
    font-family: 'Quicksand', sans-serif;
    font-weight: 500;
    font-size: var(--type-meta);
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: var(--gutter-gray);
    margin-bottom: 24px;
}

.spread-title {
    font-family: 'Quicksand', sans-serif;
    font-weight: 700;
    font-size: var(--type-h2);
    line-height: 0.95;
    letter-spacing: -0.025em;
    color: var(--ink);
    margin-bottom: 28px;
}

.pull-quote {
    font-family: 'Quicksand', sans-serif;
    font-weight: 500;
    font-size: clamp(18px, 1.6vw, 22px);
    line-height: 1.55;
    color: var(--ink);
    max-width: 36ch;
    margin-bottom: 28px;
    letter-spacing: -0.005em;
}

.dropcap {
    float: left;
    font-family: 'Zen Maru Gothic', 'Quicksand', sans-serif;
    font-weight: 700;
    font-size: 4em;
    line-height: 0.85;
    margin: 0.05em 0.12em -0.05em 0;
    color: var(--active-jewel);
    transition: color 600ms var(--ease-soft);
}

/* ============================================================
   COVER (Spread 01)
   ============================================================ */
.spread-cover { background: var(--paper); }

.cover-verso {
    align-items: flex-start;
    justify-content: center;
}

.cover-title {
    font-family: 'Zen Maru Gothic', sans-serif;
    font-weight: 900;
    font-size: clamp(160px, 28vw, 420px);
    line-height: 0.85;
    letter-spacing: -0.04em;
    color: var(--ink);
    writing-mode: vertical-rl;
    height: 100%;
    display: flex;
    align-items: center;
    gap: 0.05em;
}

.cover-kanji {
    display: inline-block;
    transform: translateY(40px);
    opacity: 0;
    transition: transform 900ms var(--ease-pop), opacity 900ms var(--ease-soft);
}
.cover-kanji.is-in { transform: translateY(0); opacity: 1; }
.cover-kanji[data-char="率"] {
    color: var(--amethyst);
    transition-delay: 200ms;
}

.cover-romaji {
    position: absolute;
    bottom: 32px;
    left: 0;
    font-family: 'Quicksand', sans-serif;
    font-weight: 600;
    font-size: 16px;
    letter-spacing: 0.28em;
    text-transform: lowercase;
    color: var(--gutter-gray);
}

.cover-recto {
    justify-content: space-between;
}

.masthead {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 56px;
}
.masthead-issue {
    font-family: 'Quicksand', sans-serif;
    font-weight: 700;
    font-size: 13px;
    letter-spacing: 0.32em;
    text-transform: uppercase;
    color: var(--ink);
}
.masthead-date {
    font-family: 'Quicksand', sans-serif;
    font-weight: 500;
    font-size: 12px;
    letter-spacing: 0.26em;
    text-transform: uppercase;
    color: var(--gutter-gray);
}
.masthead-rule {
    width: 56px;
    height: 1px;
    background: var(--ink);
    margin: 12px 0;
}
.masthead-tag {
    font-family: 'Quicksand', sans-serif;
    font-weight: 500;
    font-size: 11px;
    letter-spacing: 0.32em;
    text-transform: uppercase;
    color: var(--ink);
}

.cover-lead {
    font-family: 'Nunito', sans-serif;
    font-weight: 400;
    font-size: clamp(15px, 1.2vw, 18px);
    line-height: 1.85;
    color: var(--ink);
    max-width: 38ch;
    margin-bottom: 24px;
}

.cover-subtext {
    font-family: 'Quicksand', sans-serif;
    font-weight: 500;
    font-size: 14px;
    letter-spacing: 0.04em;
    color: var(--gutter-gray);
    margin-bottom: 48px;
}

.cover-anchor {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: auto;
}
.anchor-lozenge {
    width: 80px;
    height: 28px;
    border-radius: 14px;
    background: var(--amethyst);
    transform: scale(0);
    transition: transform 800ms var(--ease-pop);
    transition-delay: 600ms;
}
.cover-anchor.is-in .anchor-lozenge { transform: scale(1); }
.anchor-caption {
    font-family: 'Quicksand', sans-serif;
    font-weight: 500;
    font-size: 12px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--gutter-gray);
    opacity: 0;
    transform: translateX(-8px);
    transition: opacity 600ms var(--ease-soft), transform 600ms var(--ease-soft);
    transition-delay: 900ms;
}
.cover-anchor.is-in .anchor-caption { opacity: 1; transform: translateX(0); }

/* ============================================================
   METER (Spread 02)
   ============================================================ */
.spread-meter { background: var(--paper); }

.meter-recto {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 32px;
    text-align: center;
}

.meter-dots {
    display: flex;
    gap: clamp(28px, 4vw, 56px);
    margin-bottom: 12px;
}
.meter-dot {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    opacity: 0.35;
    transition: opacity 240ms var(--ease-soft), transform 240ms var(--ease-soft);
}
.meter-dot.is-active {
    opacity: 1;
    transform: translateY(-2px);
}
.meter-dot-mark {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--gutter-gray);
    transition: background 240ms var(--ease-soft), transform 240ms var(--ease-soft);
}
.meter-dot[data-threshold="33"].is-active .meter-dot-mark { background: var(--peridot); }
.meter-dot[data-threshold="66"].is-active .meter-dot-mark { background: var(--citrine); }
.meter-dot[data-threshold="100"].is-active .meter-dot-mark { background: var(--ruby); transform: scale(1.15); }
.meter-dot-label {
    font-family: 'Quicksand', sans-serif;
    font-weight: 500;
    font-size: 11px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--gutter-gray);
}

.meter-readout {
    font-family: 'Quicksand', sans-serif;
    font-weight: 700;
    font-size: clamp(120px, 18vw, 240px);
    line-height: 1;
    color: var(--ruby);
    letter-spacing: -0.06em;
    display: flex;
    align-items: flex-start;
    gap: 4px;
    transition: color 200ms var(--ease-soft);
}
#meter-value {
    display: inline-block;
    min-width: 2.6ch;
    text-align: right;
}
.meter-percent {
    font-size: 0.4em;
    font-weight: 500;
    margin-top: 0.55em;
    color: var(--ink);
}

.meter-caption {
    font-family: 'Quicksand', sans-serif;
    font-weight: 500;
    font-size: 16px;
    letter-spacing: 0.04em;
    color: var(--ink);
    max-width: 32ch;
    min-height: 2.6em;
    transition: color 200ms var(--ease-soft);
}

.meter-bar {
    width: min(440px, 80%);
    height: 6px;
    background: var(--paper-deep);
    border-radius: 3px;
    overflow: hidden;
    margin-top: 8px;
}
.meter-bar-fill {
    height: 100%;
    width: 42%;
    background: var(--ruby);
    border-radius: 3px;
    transition: width 120ms linear, background 200ms var(--ease-soft);
}

/* ============================================================
   CITY (Spread 03)
   ============================================================ */
.spread-city { background: var(--paper); }

.city-caption {
    font-family: 'Quicksand', sans-serif;
    font-weight: 500;
    font-size: 14px;
    letter-spacing: 0.04em;
    color: var(--ink);
    margin-top: 16px;
    max-width: 36ch;
    min-height: 5em;
    transition: color 200ms var(--ease-soft);
}

.city-recto {
    display: flex;
    align-items: flex-end;
    justify-content: center;
}

.skyline {
    position: relative;
    width: 100%;
    height: min(70vh, 560px);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 4px;
}

.building {
    position: relative;
    flex: 1 1 auto;
    max-width: 64px;
    min-width: 18px;
    border-radius: 6px 6px 0 0;
    transition: transform 280ms var(--ease-soft), filter 280ms var(--ease-soft);
    cursor: none;
    transform-origin: bottom center;
}

.building.is-near {
    transform: translateY(-12px);
    filter: brightness(1.1);
}

.building.is-active {
    transform: translateY(-22px) scale(1.04);
}

.building::after {
    content: "";
    position: absolute;
    top: 12%;
    left: 18%;
    width: 64%;
    height: 4px;
    background: var(--paper);
    border-radius: 2px;
    opacity: 0.45;
}

/* ============================================================
   DIE (Spread 04)
   ============================================================ */
.spread-die { background: var(--paper); }

.die-instruction {
    font-family: 'Quicksand', sans-serif;
    font-weight: 500;
    font-size: 13px;
    letter-spacing: 0.06em;
    color: var(--gutter-gray);
    margin-top: 16px;
}

.die-recto {
    display: grid;
    grid-template-rows: 1fr auto;
    gap: 32px;
    align-items: stretch;
}

.die-stage {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    perspective: 1200px;
    min-height: 280px;
}

.die {
    --die-size: clamp(160px, 22vw, 240px);
    width: var(--die-size);
    height: var(--die-size);
    position: relative;
    transform-style: preserve-3d;
    animation: die-tumble 24s linear infinite;
    transition: transform 800ms cubic-bezier(0.34, 1.16, 0.64, 1);
    will-change: transform;
}

.die.is-paused {
    animation-play-state: paused;
}

.die.is-rolling {
    animation: none;
}

@keyframes die-tumble {
    0%   { transform: rotateX(-22deg) rotateY(-32deg); }
    25%  { transform: rotateX(-22deg) rotateY(58deg); }
    50%  { transform: rotateX(58deg) rotateY(58deg); }
    75%  { transform: rotateX(58deg) rotateY(-32deg); }
    100% { transform: rotateX(-22deg) rotateY(-32deg); }
}

.die-face {
    position: absolute;
    width: var(--die-size);
    height: var(--die-size);
    background: var(--paper);
    border: 2px solid var(--ink);
    border-radius: 22px;
    box-shadow: 0 0 0 1px var(--paper) inset;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    grid-template-rows: 1fr 1fr 1fr;
    padding: 18%;
}

.die-face-top {
    transform: rotateX(90deg) translateZ(calc(var(--die-size) / 2));
    background: var(--sapphire);
    border-color: var(--sapphire);
}
.die-face-top .pip { background: var(--paper); }

.die-face-left {
    transform: rotateY(-90deg) translateZ(calc(var(--die-size) / 2));
    background: var(--paper);
}
.die-face-left .pip { background: var(--ink); }

.die-face-right {
    transform: rotateY(0deg) translateZ(calc(var(--die-size) / 2));
    background: var(--paper);
}
.die-face-right .pip { background: var(--ink); }

.pip {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    align-self: center;
    justify-self: center;
}

.pip-c   { grid-column: 2; grid-row: 2; }
.pip-tl  { grid-column: 1; grid-row: 1; }
.pip-tr  { grid-column: 3; grid-row: 1; }
.pip-bl  { grid-column: 1; grid-row: 3; }
.pip-br  { grid-column: 3; grid-row: 3; }
.pip-ml  { grid-column: 1; grid-row: 2; }
.pip-mr  { grid-column: 3; grid-row: 2; }

.die-captions {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px 32px;
    font-family: 'Quicksand', sans-serif;
    font-weight: 500;
    font-size: 14px;
    color: var(--ink);
    line-height: 1.45;
}
.die-captions li {
    opacity: 0.35;
    transition: opacity 240ms var(--ease-soft), color 240ms var(--ease-soft);
}
.die-captions li.is-active {
    opacity: 1;
    color: var(--sapphire);
}
.die-face-num {
    font-family: 'Zen Maru Gothic', sans-serif;
    font-weight: 700;
    color: var(--sapphire);
    margin-right: 8px;
}

/* ============================================================
   GARDEN (Spread 05)
   ============================================================ */
.spread-garden { background: var(--paper); }

.garden-instruction {
    font-family: 'Quicksand', sans-serif;
    font-weight: 500;
    font-size: 13px;
    letter-spacing: 0.04em;
    color: var(--gutter-gray);
    margin-top: 16px;
    max-width: 32ch;
}

.garden-reset {
    display: inline-block;
    margin-top: 24px;
    padding: 10px 22px;
    border: 1.5px solid var(--ink);
    border-radius: 999px;
    background: var(--paper);
    font-family: 'Quicksand', sans-serif;
    font-weight: 600;
    font-size: 12px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ink);
    transition: background 200ms var(--ease-soft), color 200ms var(--ease-soft), transform 200ms var(--ease-soft);
}
.garden-reset:hover {
    background: var(--citrine);
    border-color: var(--citrine);
    color: var(--ink);
    transform: translateY(-2px);
}

.garden-recto {
    display: flex;
    align-items: stretch;
    justify-content: center;
}

.garden-tree {
    width: 100%;
    height: 100%;
    max-height: 80vh;
}

.branch {
    fill: none;
    stroke: var(--ink);
    stroke-linecap: round;
    transition: stroke 200ms var(--ease-soft);
    cursor: none;
}
.branch.is-dragging {
    stroke: var(--citrine);
}

.leaf {
    transition: fill 240ms var(--ease-soft), transform 240ms var(--ease-soft);
    transform-box: fill-box;
    transform-origin: center;
}

/* ============================================================
   COLOPHON
   ============================================================ */
.spread-colophon { background: var(--paper-deep); }

.colophon-inner {
    display: grid;
    grid-template-columns: 1.2fr 1fr 0.6fr;
    gap: clamp(32px, 5vw, 80px);
    align-items: center;
}

.colophon-block { }

.colophon-title {
    font-family: 'Quicksand', sans-serif;
    font-weight: 700;
    font-size: clamp(48px, 7vw, 96px);
    line-height: 0.95;
    letter-spacing: -0.025em;
    color: var(--amethyst);
    margin: 16px 0;
}

.colophon-line {
    font-family: 'Nunito', sans-serif;
    font-weight: 400;
    font-size: clamp(15px, 1.2vw, 18px);
    line-height: 1.7;
    color: var(--ink);
    max-width: 30ch;
}

.colophon-credits dl {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.credit-row {
    display: grid;
    grid-template-columns: 90px 1fr;
    gap: 16px;
    border-top: 1px solid var(--gutter-gray);
    padding-top: 8px;
}
.credit-row dt {
    font-family: 'Quicksand', sans-serif;
    font-weight: 600;
    font-size: 11px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--gutter-gray);
    padding-top: 2px;
}
.credit-row dd {
    font-family: 'Nunito', sans-serif;
    font-weight: 500;
    font-size: 14px;
    color: var(--ink);
}

.colophon-die-stage {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}
.mini-die {
    width: 64px;
    height: 64px;
    border-radius: 14px;
    background: var(--paper);
    border: 2px solid var(--ink);
    display: grid;
    place-items: center;
    transition: transform 700ms var(--ease-pop);
}
.mini-die.is-rolling {
    transform: rotate(720deg);
}
.mini-die .pip {
    background: var(--amethyst);
    width: 14px;
    height: 14px;
}
.colophon-caption {
    font-family: 'Quicksand', sans-serif;
    font-weight: 500;
    font-size: 11px;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: var(--gutter-gray);
}

/* ============================================================
   ENTRANCE STATES
   ============================================================ */
.fade-up {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 800ms var(--ease-soft), transform 800ms var(--ease-soft);
    will-change: opacity, transform;
}
.fade-up.is-in {
    opacity: 1;
    transform: translateY(0);
}

.spread .fade-up.delay-1 { transition-delay: 100ms; }
.spread .fade-up.delay-2 { transition-delay: 200ms; }
.spread .fade-up.delay-3 { transition-delay: 320ms; }
.spread .fade-up.delay-4 { transition-delay: 460ms; }

/* ============================================================
   RESPONSIVE — STACK SPREADS ON NARROW SCREENS
   ============================================================ */
@media (max-width: 880px) {
    .spread-inner {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    .page {
        min-height: auto;
    }
    .page-verso, .page-recto {
        padding: 0;
    }
    .cover-title {
        writing-mode: horizontal-tb;
        font-size: clamp(160px, 38vw, 280px);
        height: auto;
        flex-direction: row;
    }
    .colophon-inner {
        grid-template-columns: 1fr;
    }
    .die-captions {
        grid-template-columns: 1fr;
    }
}