/* 玩家遊戲流程頁 — Arcade Cartridge 視覺。
 * 嵌在 base.html 的暗底頁中，模擬「街機店看 cartridge 牆」對比。
 *
 * 對應 spec §4 視覺規格：
 *   - 街機色票（每 step 一色）+ 卡帶外殼 #1A1D2E + 紙感底 #F7F3ED
 *   - Press Start 2P pixel font 用於 STAGE / EX / TIPS / DURATION 短 label
 *   - cartridge：4px solid border + 6px offset shadow + notch + active 上移 6px
 *   - detail card：8px offset shadow + 兩欄 + extras
 *   - blink 動畫 / pixel-grid 背景
 *   - mobile < 768px 縱排
 *
 * Font note: Press Start 2P 採 self-host，避免外部 CDN 依賴。
 */

@font-face {
    font-family: "Press Start 2P";
    src: url("../fonts/PressStart2P-Regular.5c7e04d0202b.woff2") format("woff2");
    font-style: normal;
    font-weight: 400;
    font-display: swap;
}

:root {
    --pf-shell: #1A1D2E;
    --pf-paper: #F7F3ED;
    --pf-page-bg: #0F1219;
    --pf-ink: #FFF9EA;
    --pf-muted: #C9D1E7;
    --pf-panel: #171B2A;
    --pf-panel-raised: #20263A;
    --pf-panel-line: rgba(247, 243, 237, 0.28);
    --pf-shadow: #05070D;
    --pf-pixel-font: "Press Start 2P", "Courier New", monospace;
    --pf-body-font: "Plus Jakarta Sans", system-ui, sans-serif;
    --pf-mono-font: "JetBrains Mono", "Menlo", monospace;
}

.player-flow-page {
    background: var(--pf-page-bg);
    background-image:
        linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
    background-size: 32px 32px;
    padding: 48px 16px 64px;
    color: var(--pf-paper);
    font-family: var(--pf-body-font);
    min-height: 100vh;
}

/* hero */
.player-flow-hero { text-align: center; margin-bottom: 36px; }
.player-flow-hero__pixel {
    display: inline-block;
    font-family: var(--pf-pixel-font);
    font-size: 13px;
    color: #6CF5A8;
    border: 3px solid #6CF5A8;
    background: rgba(27, 140, 74, 0.16);
    padding: 6px 14px;
    margin-bottom: 14px;
    letter-spacing: 0.1em;
}
.player-flow-hero__title {
    font-size: 44px; font-weight: 800; letter-spacing: -0.04em;
    margin: 0; color: var(--pf-paper);
}
.player-flow-hero__subtitle {
    font-size: 16px; color: var(--pf-muted); margin: 8px 0 0;
}

/* stage banner */
.player-flow-stage { margin: 32px auto; max-width: 1200px; }
.player-flow-stage__banner {
    background:
        linear-gradient(90deg,
            color-mix(in srgb, var(--stage-color) 36%, #101421),
            var(--pf-panel));
    padding: 12px 20px;
    border: 4px solid var(--stage-color);
    border-radius: 4px;
    margin-bottom: 24px;
    box-shadow: 6px 6px 0 0 var(--pf-shadow);
}
.player-flow-stage__pixel {
    font-family: var(--pf-pixel-font);
    font-size: 12px;
    color: var(--pf-ink);
    letter-spacing: 0.08em;
    text-shadow: 2px 2px 0 var(--pf-shadow);
}

/* cartridge row */
.player-flow-stage__cartridges {
    display: flex; flex-wrap: wrap; align-items: center; justify-content: center;
    gap: 12px; row-gap: 36px;
}
.player-flow-arrow {
    color: var(--pf-paper);
    font-size: 24px; font-weight: bold;
}

/* cartridge card */
.player-flow-cartridge {
    flex: 0 0 auto;
    width: 200px;
    background: var(--pf-paper);
    border: 4px solid var(--pf-shell);
    border-radius: 6px;
    box-shadow: 6px 6px 0 0 var(--pf-shell);
    padding: 14px 12px 16px;
    color: var(--pf-shell);
    cursor: pointer;
    position: relative;
    transition: transform 0.15s ease;
    user-select: none;
}
.player-flow-cartridge::before {
    /* notch */
    content: "";
    position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
    width: 60px; height: 10px;
    background: inherit;
    border-left: 4px solid var(--pf-shell);
    border-right: 4px solid var(--pf-shell);
    border-top: 4px solid var(--pf-shell);
    border-radius: 4px 4px 0 0;
}
.player-flow-cartridge:hover { transform: translateY(-2px); }
.player-flow-cartridge[data-active="true"] {
    background:
        linear-gradient(145deg,
            color-mix(in srgb, var(--step-color) 70%, #0F1219),
            color-mix(in srgb, var(--step-color) 42%, #0F1219));
    color: var(--pf-ink);
    border-color: var(--step-color);
    transform: translateY(-6px);
    transition: transform 0.2s cubic-bezier(.5,1.6,.5,1);
    box-shadow:
        6px 6px 0 0 var(--pf-shadow),
        0 0 0 4px color-mix(in srgb, var(--step-color) 32%, transparent),
        inset 0 0 0 2px rgba(255, 255, 255, 0.16);
}
.player-flow-cartridge__stage-label {
    display: block;
    font-family: var(--pf-pixel-font);
    font-size: 10px;
    letter-spacing: 0.05em;
    color: var(--pf-shell);
    opacity: 0.5;
    margin-bottom: 6px;
}
.player-flow-cartridge[data-active="true"] .player-flow-cartridge__stage-label {
    color: var(--pf-ink);
    opacity: 0.9;
}
.player-flow-cartridge__icon {
    width: 56px; height: 56px;
    margin: 0 auto 10px;
    background: var(--step-accent);
    border: 3px solid var(--step-color);
    border-radius: 4px;
    display: flex; align-items: center; justify-content: center;
    color: var(--step-color);
    box-shadow: inset 2px 2px 0 0 rgba(255,255,255,0.3);
}
.player-flow-cartridge[data-active="true"] .player-flow-cartridge__icon {
    background: rgba(15, 18, 25, 0.42);
    border-color: var(--pf-ink);
    color: var(--pf-ink);
}
.player-flow-cartridge__title {
    font-size: 18px; font-weight: 800; text-align: center;
    letter-spacing: -0.02em; margin: 0 0 2px;
    color: var(--pf-shell);
}
.player-flow-cartridge[data-active="true"] .player-flow-cartridge__title {
    color: var(--pf-ink);
}
.player-flow-cartridge__subtitle {
    font-family: var(--pf-mono-font);
    font-size: 10px; text-align: center;
    text-transform: uppercase; letter-spacing: 0.08em;
    color: var(--pf-shell);
    opacity: 0.5; margin: 0;
}
.player-flow-cartridge[data-active="true"] .player-flow-cartridge__subtitle {
    color: var(--pf-ink);
    opacity: 0.85;
}
.player-flow-cartridge__short {
    margin-top: 10px; padding-top: 10px;
    border-top: 2px dashed #E0DACE;
    font-size: 11px; line-height: 1.5; text-align: center; opacity: 0.7;
    color: var(--pf-shell);
}
.player-flow-cartridge[data-active="true"] .player-flow-cartridge__short {
    border-top-color: rgba(255, 249, 234, 0.46);
    color: var(--pf-ink);
    opacity: 0.95;
}

/* detail card */
.player-flow-detail {
    max-width: 1200px; margin: 32px auto 0; position: relative;
}
.player-flow-detail__card {
    background:
        linear-gradient(180deg, var(--pf-panel-raised), var(--pf-panel));
    color: var(--pf-ink);
    border: 4px solid color-mix(in srgb, var(--step-color) 70%, var(--pf-panel-line));
    box-shadow: 8px 8px 0 0 var(--pf-shadow);
    padding: 28px;
    position: relative;
    transition: opacity 0.25s ease, transform 0.25s ease;
}
.player-flow-detail__card[data-visible="false"] { display: none; }
.player-flow-detail__card[data-visible="true"]  { display: block; opacity: 1; transform: translateY(0); }

.player-flow-detail__tag {
    position: absolute; top: -18px; left: 24px;
    background: var(--pf-page-bg); color: var(--pf-ink);
    font-family: var(--pf-pixel-font); font-size: 11px;
    padding: 8px 14px;
    border: 4px solid var(--step-color);
    letter-spacing: 0.05em;
    box-shadow: 4px 4px 0 0 var(--pf-shadow);
}
.player-flow-detail__body {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 28px; margin-top: 8px;
}
.player-flow-detail__title {
    font-size: 32px; font-weight: 800; letter-spacing: -0.03em;
    margin: 0 0 4px;
    color: #FFFFFF;
}
.player-flow-detail__subtitle {
    font-family: var(--pf-mono-font); font-size: 13px;
    color: color-mix(in srgb, var(--step-color) 52%, #FFFFFF);
    text-transform: uppercase; letter-spacing: 0.1em;
    margin: 0 0 16px;
}
.player-flow-detail__what {
    font-size: 15px; line-height: 1.7; margin: 0;
    color: var(--pf-ink);
}
.player-flow-detail__example {
    margin-top: 18px; padding: 12px 14px;
    background:
        linear-gradient(90deg,
            color-mix(in srgb, var(--step-color) 18%, #0F1219),
            rgba(15, 18, 25, 0.72));
    border: 3px solid var(--step-color);
    font-family: var(--pf-mono-font); font-size: 12px; line-height: 1.6;
    color: var(--pf-ink);
}
.player-flow-detail__example-label {
    font-weight: 700;
    color: #FFFFFF;
    margin-right: 6px;
}

.player-flow-detail__tips {
    background: #0F1321;
    border: 3px solid var(--pf-panel-line);
    padding: 20px;
    box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.04);
}
.player-flow-detail__tips-header {
    font-family: var(--pf-pixel-font); font-size: 11px;
    margin: 0 0 14px; letter-spacing: 0.05em;
    color: #FFFFFF;
}
.player-flow-detail__tips ol {
    list-style: none; padding: 0; margin: 0;
    counter-reset: tips;
}
.player-flow-detail__tips li {
    display: grid; grid-template-columns: 24px 1fr;
    gap: 10px; margin-bottom: 10px;
    font-size: 14px; line-height: 1.5;
    counter-increment: tips;
    color: var(--pf-muted);
}
.player-flow-detail__tips li::before {
    content: counter(tips);
    width: 16px; height: 16px;
    background: color-mix(in srgb, var(--step-color) 72%, #05070D);
    color: #FFFFFF;
    font-family: var(--pf-mono-font); font-size: 11px;
    display: flex; align-items: center; justify-content: center;
    margin-top: 2px;
}

.player-flow-detail__extras {
    margin-top: 16px; padding-top: 16px;
    border-top: 2px dashed rgba(255, 249, 234, 0.36);
}
.player-flow-detail__extras-title {
    font-family: var(--pf-pixel-font); font-size: 10px;
    margin: 0 0 10px; letter-spacing: 0.05em;
    color: #FFFFFF;
}
.player-flow-detail__extras ul {
    list-style: none; padding: 0; margin: 0;
}
.player-flow-detail__extras li {
    padding: 6px 0; font-size: 13px;
    color: var(--pf-muted);
}
.player-flow-detail__extras strong {
    color: #FFFFFF;
}

.player-flow-detail__extras[data-extras-kind="reward_strategies"] .player-flow-detail__extras-title {
    white-space: nowrap;
    writing-mode: horizontal-tb;
}
.player-flow-detail__extras[data-extras-kind="reward_strategies"] ul {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
}
.player-flow-detail__extras[data-extras-kind="reward_strategies"] li {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
    padding: 10px;
    border: 2px solid rgba(255, 249, 234, 0.22);
    background: rgba(255, 255, 255, 0.04);
}
.player-flow-detail__extras[data-extras-kind="reward_strategies"] strong {
    display: block;
    white-space: nowrap;
}

.player-flow-footer-hint {
    text-align: center; margin-top: 32px;
    font-family: var(--pf-mono-font); font-size: 11px;
    color: var(--pf-muted);
    letter-spacing: 0.1em;
}

[data-blink] { animation: pf-blink 0.6s steps(2) infinite; }

@keyframes pf-blink { to { opacity: 0; } }

/* mobile */
@media (max-width: 768px) {
    .player-flow-hero__title { font-size: 32px; }
    .player-flow-stage__cartridges { flex-direction: column; gap: 24px; }
    .player-flow-arrow { transform: rotate(90deg); }
    .player-flow-detail__body { grid-template-columns: 1fr; }
    .player-flow-detail__extras[data-extras-kind="reward_strategies"] ul {
        grid-template-columns: 1fr;
    }
}