@import url('https://fonts.googleapis.com/css2?family=Ma+Shan+Zheng&family=Noto+Serif+SC:wght@400;500;600;700&family=JetBrains+Mono:wght@500&display=swap');

:root {
    --ink-950: #080706;
    --ink-900: #0e0d0b;
    --ink-800: #171513;
    --ink-700: #211f1b;
    --paper: #f5efe3;
    --paper-warm: #ece4d6;
    --paper-shadow: #cfc4b0;
    --cinnabar: #b83a2f;
    --cinnabar-hover: #d44a3d;
    --jade: #2d5a4a;
    --jade-light: #3f7562;
    --gold: #c9a227;
    --gold-dim: #9a7b1a;
    --gold-glow: rgba(201, 162, 39, 0.35);
    --text-light: #ede6d8;
    --text-muted: #7a7268;
    --text-dark: #2a2620;
    --board-wood: #a67c38;
    --board-surface: #d4a853;
    --shadow-deep: 0 16px 48px rgba(0, 0, 0, 0.5);
    --shadow-paper: 0 2px 0 rgba(255,255,255,0.7) inset, 0 8px 32px rgba(0,0,0,0.18);
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --font-display: 'Ma Shan Zheng', cursive;
    --font-body: 'Noto Serif SC', 'Songti SC', serif;
    --font-mono: 'JetBrains Mono', monospace;
    --primary-start: var(--cinnabar);
    --primary-end: var(--gold);
    --bg-color: var(--ink-900);
}

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

html, body {
    height: 100%;
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-light);
    background-color: var(--ink-900);
    background-image:
        radial-gradient(ellipse 80% 50% at 50% -5%, rgba(201, 162, 39, 0.1), transparent 55%),
        radial-gradient(ellipse 40% 30% at 95% 90%, rgba(184, 58, 47, 0.05), transparent),
        linear-gradient(rgba(237, 230, 216, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(237, 230, 216, 0.02) 1px, transparent 1px);
    background-size: 100% 100%, 100% 100%, 40px 40px, 40px 40px;
    -webkit-font-smoothing: antialiased;
}

body::after {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9998;
    opacity: 0.035;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

::selection {
    background: rgba(201, 162, 39, 0.35);
    color: var(--text-light);
}

.brand-title {
    font-family: var(--font-display);
    font-size: 1.75rem !important;
    letter-spacing: 0.25em;
    color: var(--text-light) !important;
    text-shadow: 0 1px 0 rgba(0,0,0,0.4), 0 0 24px var(--gold-glow);
    padding-left: 0.25em;
}

.navbar-theme {
    min-height: 56px;
    padding: 0 20px !important;
    background: rgba(10, 9, 7, 0.88) !important;
    backdrop-filter: blur(16px) saturate(1.2);
    border-bottom: 1px solid rgba(201, 162, 39, 0.2);
    box-shadow: 0 1px 0 rgba(201, 162, 39, 0.08), 0 8px 32px rgba(0, 0, 0, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.navbar-theme .nav-actions {
    position: absolute;
    right: 16px;
    display: flex;
    gap: 8px;
    align-items: center;
}

.navbar-theme .btn-nav {
    padding: 5px 14px;
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    border: 1px solid rgba(201, 162, 39, 0.4);
    background: rgba(201, 162, 39, 0.06);
    color: var(--gold);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: var(--font-body);
    line-height: 1.4;
}

.navbar-theme .btn-nav:hover {
    background: rgba(201, 162, 39, 0.16);
    border-color: var(--gold);
    color: var(--text-light);
}

.container {
    width: 100%;
    min-height: calc(100% - 56px);
    display: flex;
    align-items: center;
    justify-content: center;
}

.paper-panel {
    position: relative;
    background: var(--paper);
    color: var(--text-dark);
    border: 1px solid var(--paper-shadow);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-paper);
}

.paper-panel::before,
.paper-panel::after {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    border-color: var(--gold);
    border-style: solid;
    opacity: 0.45;
    pointer-events: none;
}

.paper-panel::before {
    top: 10px; left: 10px;
    border-width: 1px 0 0 1px;
}

.paper-panel::after {
    bottom: 10px; right: 10px;
    border-width: 0 1px 1px 0;
}

.card {
    --bs-card-bg: var(--paper);
    --bs-card-border-color: var(--paper-shadow);
    background: var(--paper) !important;
    border: 1px solid var(--paper-shadow) !important;
    border-radius: var(--radius-lg) !important;
    box-shadow: var(--shadow-paper) !important;
}

.card.shadow, .card.shadow-sm { box-shadow: var(--shadow-paper) !important; }

.btn-primary {
    --bs-btn-bg: var(--cinnabar);
    --bs-btn-border-color: var(--cinnabar);
    --bs-btn-hover-bg: var(--cinnabar-hover);
    --bs-btn-hover-border-color: var(--cinnabar-hover);
    background: var(--cinnabar) !important;
    border: none !important;
    color: var(--paper) !important;
    font-weight: 600;
    font-family: var(--font-body);
    letter-spacing: 0.12em;
    border-radius: var(--radius-sm) !important;
    box-shadow: 0 2px 0 rgba(0,0,0,0.15), 0 6px 20px rgba(184, 58, 47, 0.3);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 0 rgba(0,0,0,0.12), 0 10px 28px rgba(184, 58, 47, 0.38);
}

.btn-primary:active { transform: translateY(0); }

.btn-outline-primary {
    border: 1px solid var(--jade) !important;
    color: var(--jade) !important;
    background: transparent !important;
    letter-spacing: 0.08em;
    font-family: var(--font-body);
    border-radius: var(--radius-sm) !important;
}

.btn-outline-primary:hover {
    background: var(--jade) !important;
    color: var(--paper) !important;
}

.form-field {
    margin-bottom: 18px;
}

.form-field label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: 0.06em;
    margin-bottom: 6px;
}

.form-control {
    height: 44px;
    padding: 10px 14px;
    background: var(--paper-warm) !important;
    border: 1px solid var(--paper-shadow) !important;
    color: var(--text-dark) !important;
    border-radius: var(--radius-sm) !important;
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control::placeholder { color: #b0a898; }

.form-control:focus {
    border-color: var(--gold) !important;
    box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.15) !important;
    outline: none;
}

.btn-close {
    filter: invert(0.3) sepia(0.3);
    opacity: 0.6;
}

.btn-close:hover { opacity: 1; }

.toast {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    padding: 11px 24px;
    border-radius: var(--radius-sm);
    color: var(--paper);
    font-size: 0.9rem;
    z-index: 10000;
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.3s ease;
    box-shadow: var(--shadow-deep);
    letter-spacing: 0.06em;
    border: 1px solid rgba(255,255,255,0.1);
}

.app-toast-stack {
    position: fixed;
    top: 24px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10020;
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: min(420px, calc(100vw - 24px));
    pointer-events: none;
}

.app-toast-item {
    padding: 12px 16px;
    border-radius: 14px;
    background: rgba(42, 38, 32, 0.96);
    color: var(--paper);
    border: 1px solid rgba(201, 162, 39, 0.32);
    box-shadow: var(--shadow-deep);
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity 0.2s ease, transform 0.2s ease;
    text-align: center;
    letter-spacing: 0.04em;
}

.app-toast-item.is-show {
    opacity: 1;
    transform: translateY(0);
}

.app-toast-item.is-success {
    border-color: rgba(63, 117, 98, 0.42);
}

.app-toast-item.is-warn {
    border-color: rgba(212, 74, 61, 0.42);
}

.app-dialog-mask {
    position: fixed;
    inset: 0;
    z-index: 10030;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: rgba(8, 7, 6, 0.72);
    backdrop-filter: blur(6px);
    opacity: 0;
    transition: opacity 0.18s ease;
}

.app-dialog-mask.is-open {
    opacity: 1;
}

.app-dialog {
    width: min(420px, 100%);
    padding: 20px;
    border-radius: var(--radius-lg);
    background: var(--paper);
    color: var(--text-dark);
    border: 1px solid var(--paper-shadow);
    box-shadow: var(--shadow-paper);
    transform: translateY(8px);
    transition: transform 0.18s ease;
}

.app-dialog-mask.is-open .app-dialog {
    transform: translateY(0);
}

.app-dialog-title {
    margin-bottom: 10px;
    font-family: var(--font-body);
    font-size: 1.05rem;
    font-weight: 700;
}

.app-dialog-body {
    font-size: 0.95rem;
    color: var(--text-dark);
    white-space: pre-line;
    line-height: 1.65;
}

.announce-dialog {
    width: min(440px, 100%);
}

.announce-version {
    display: inline-block;
    margin-bottom: 8px;
    padding: 2px 10px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: #6b5344;
    background: rgba(201, 162, 39, 0.18);
    border: 1px solid rgba(201, 162, 39, 0.35);
}

.announce-body {
    white-space: normal;
    max-height: min(52vh, 360px);
    overflow-y: auto;
}

.announce-section {
    margin: 14px 0 6px;
    font-size: 0.92rem;
    font-weight: 700;
    color: #5c4030;
}

.announce-section:first-child {
    margin-top: 0;
}

.announce-list {
    margin: 0 0 4px;
    padding-left: 1.15rem;
    color: var(--text-dark);
}

.announce-list li {
    margin: 4px 0;
    line-height: 1.55;
}

.announce-p {
    margin: 0 0 8px;
    line-height: 1.55;
}

.app-dialog-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 18px;
}

.app-dialog-desc {
    margin-bottom: 12px;
    font-size: 0.92rem;
    color: var(--text-muted, #6e5d4d);
    line-height: 1.5;
}

.app-dialog-input {
    margin-top: 4px;
    border-radius: 10px;
    border: 1px solid rgba(215, 194, 163, 0.95);
    background: rgba(255, 251, 245, 0.95);
    padding: 10px 12px;
}

.app-dialog-hint {
    margin-top: 8px;
    font-size: 0.82rem;
    color: var(--text-muted, #6e5d4d);
    line-height: 1.4;
}

.toast.show {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.btn-logout {
    padding: 5px 14px;
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    border: 1px solid rgba(184, 58, 47, 0.45);
    background: rgba(184, 58, 47, 0.08);
    color: var(--cinnabar);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: var(--font-body);
    line-height: 1.4;
}

.btn-logout:hover {
    background: rgba(184, 58, 47, 0.18);
    border-color: var(--cinnabar);
    color: var(--text-light);
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--gold, #c9a227);
    text-decoration: none;
    font-size: 0.88rem;
    padding: 7px 14px;
    border: 1px solid rgba(201, 162, 39, 0.4);
    border-radius: var(--radius-sm, 8px);
    transition: background 0.25s ease, border-color 0.25s ease, color 0.25s ease, transform 0.25s ease;
    letter-spacing: 0.05em;
    white-space: nowrap;
    cursor: pointer;
}

.back-link:hover {
    background: rgba(201, 162, 39, 0.14);
    border-color: var(--gold, #c9a227);
    color: var(--text-light, #ede6d8);
    transform: translateY(-1px);
}

.role-toast {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.85);
    padding: 18px 36px;
    background: var(--paper);
    color: var(--text-dark);
    font-size: 1.2rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    border: 2px solid var(--gold);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-deep);
    z-index: 10001;
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.3s ease;
    pointer-events: none;
}

.role-toast.show {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}
.toast.error { background: var(--cinnabar); }
.toast.success { background: var(--jade); }

.profile-link {
    color: var(--jade);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: color 0.2s, border-color 0.2s;
}

.profile-link:hover {
    color: var(--cinnabar);
    border-bottom-color: var(--cinnabar);
}

.stat-chip {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    padding: 10px 14px;
    background: var(--paper-warm);
    border: 1px solid var(--paper-shadow);
    border-radius: var(--radius-sm);
    min-width: 72px;
}

.stat-chip .val {
    font-family: var(--font-mono);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-dark);
    line-height: 1.2;
}

.stat-chip .lbl {
    font-size: 0.72rem;
    color: var(--text-muted);
    letter-spacing: 0.04em;
    margin-top: 2px;
}

.stat-chip.highlight .val { color: var(--cinnabar); }

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

.nav-friend-link {
    position: relative;
    color: var(--text-light);
    text-decoration: none;
    margin-right: 16px;
    font-size: 0.95rem;
}

.nav-friend-link:hover { color: var(--gold); }

.friend-badge {
    position: absolute;
    top: -6px;
    right: -10px;
    background: #dc3545;
    color: #fff;
    font-size: 11px;
    min-width: 18px;
    height: 18px;
    line-height: 18px;
    text-align: center;
    border-radius: 9px;
    padding: 0 4px;
}

.nav-friend-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: rgba(201, 162, 39, 0.18);
    border: 1px solid rgba(201, 162, 39, 0.55);
    border-radius: var(--radius-sm);
    font-weight: 600;
}

.nav-friend-btn:hover {
    background: rgba(201, 162, 39, 0.32);
    color: var(--gold) !important;
}

.nav-friend-btn .friend-icon {
    font-size: 1.1rem;
    line-height: 1;
}