/* === Theme Variables === */
:root {
    /* Surfaces */
    --color-bg: #1a1a2e;
    --color-card: #16213e;
    --color-border: #0f3460;
    --color-input-bg: #1a1a2e;

    /* Text */
    --color-text: #e0e0e0;
    --color-text-secondary: #ccc;
    --color-text-muted: #888;
    --color-text-dim: #666;
    --color-label: #aaa;

    /* Accent */
    --color-accent: #ffd700;
    --color-accent-hover: #ffed4a;
    --color-accent-rgb: 255, 215, 0;

    /* Buttons */
    --color-btn-text: #1a1a2e;
    --color-btn-danger: #e74c3c;
    --color-btn-danger-hover: #c0392b;

    /* Badges */
    --color-badge-easy-bg: #2d6a4f;
    --color-badge-easy-text: #b7e4c7;
    --color-badge-medium-bg: #7f5539;
    --color-badge-medium-text: #ddb892;
    --color-badge-hard-bg: #9d0208;
    --color-badge-hard-text: #ffc2c2;
    --color-badge-active-bg: #2d6a4f;
    --color-badge-active-text: #b7e4c7;
    --color-badge-inactive-bg: #6a2d2d;
    --color-badge-inactive-text: #e4b7b7;
    --color-badge-pending-bg: #6a5a2d;
    --color-badge-pending-text: #e4dbb7;
    --color-badge-ok-bg: #2d6a4f;
    --color-badge-ok-text: #b7e4c7;
    --color-badge-fail-bg: #6a2d2d;
    --color-badge-fail-text: #e4b7b7;
    --color-badge-hub-bg: #4a1a6b;
    --color-badge-hub-text: #d4a5ff;
    --color-badge-neutral-bg: #555;
    --color-badge-neutral-text: #e0e0e0;

    /* Messages */
    --color-msg-ok-bg: #2d6a4f;
    --color-msg-ok-text: #b7e4c7;
    --color-msg-err-bg: #6a2d2d;
    --color-msg-err-text: #e4b7b7;
    --color-msg-warn-bg: #6a5a2d;
    --color-msg-warn-text: #e4dbb7;
    --color-msg-info-bg: #2d4a6a;
    --color-msg-info-text: #b7d4e4;

    /* Ranks */
    --color-rank-1: #ffd700;
    --color-rank-2: #c0c0c0;
    --color-rank-3: #cd7f32;

    /* Progress */
    --color-progress-track: #0f3460;
    --color-progress-fill-start: #ffd700;
    --color-progress-fill-end: #ff8c00;

    /* Special */
    --color-token-box-bg: #0a0a1a;
    --color-logged-in-bg: #0f3460;
    --color-logged-in-border: #ffd700;
    --color-paired-yes: #2ecc71;

    /* Charts */
    --color-chart-tick: #888;
    --color-chart-grid: #0f3460;
    --color-chart-accent2: #4ecdc4;
    --color-chart-accent2-rgb: 78, 205, 196;
}

[data-theme="light"] {
    /* Surfaces */
    --color-bg: #f5f5f5;
    --color-card: #ffffff;
    --color-border: #d0d0d0;
    --color-input-bg: #ffffff;

    /* Text */
    --color-text: #1a1a2e;
    --color-text-secondary: #555;
    --color-text-muted: #666;
    --color-text-dim: #999;
    --color-label: #555;

    /* Accent */
    --color-accent: #b8960c;
    --color-accent-hover: #a07d00;
    --color-accent-rgb: 184, 150, 12;

    /* Buttons */
    --color-btn-text: #ffffff;
    --color-btn-danger: #e74c3c;
    --color-btn-danger-hover: #c0392b;

    /* Badges */
    --color-badge-easy-bg: #d4edda;
    --color-badge-easy-text: #155724;
    --color-badge-medium-bg: #fff3cd;
    --color-badge-medium-text: #856404;
    --color-badge-hard-bg: #f8d7da;
    --color-badge-hard-text: #721c24;
    --color-badge-active-bg: #d4edda;
    --color-badge-active-text: #155724;
    --color-badge-inactive-bg: #f8d7da;
    --color-badge-inactive-text: #721c24;
    --color-badge-pending-bg: #fff3cd;
    --color-badge-pending-text: #856404;
    --color-badge-ok-bg: #d4edda;
    --color-badge-ok-text: #155724;
    --color-badge-fail-bg: #f8d7da;
    --color-badge-fail-text: #721c24;
    --color-badge-hub-bg: #e8d5f5;
    --color-badge-hub-text: #5a2d82;
    --color-badge-neutral-bg: #6c757d;
    --color-badge-neutral-text: #ffffff;

    /* Messages */
    --color-msg-ok-bg: #d4edda;
    --color-msg-ok-text: #155724;
    --color-msg-err-bg: #f8d7da;
    --color-msg-err-text: #721c24;
    --color-msg-warn-bg: #fff3cd;
    --color-msg-warn-text: #856404;
    --color-msg-info-bg: #d1ecf1;
    --color-msg-info-text: #0c5460;

    /* Ranks */
    --color-rank-1: #b8960c;
    --color-rank-2: #6c757d;
    --color-rank-3: #8b5e3c;

    /* Progress */
    --color-progress-track: #d0d0d0;
    --color-progress-fill-start: #b8960c;
    --color-progress-fill-end: #d4a00a;

    /* Special */
    --color-token-box-bg: #f0f0f0;
    --color-logged-in-bg: #e8f0fe;
    --color-logged-in-border: #b8960c;
    --color-paired-yes: #28a745;

    /* Charts */
    --color-chart-tick: #666;
    --color-chart-grid: #d0d0d0;
    --color-chart-accent2: #2a9d8f;
    --color-chart-accent2-rgb: 42, 157, 143;
}

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

/* === Base === */
body {
    background: var(--color-bg);
    color: var(--color-text);
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
    min-height: 100vh;
    padding: 0;
    line-height: 1.6;
}
h1 { color: var(--color-accent); margin-bottom: 0.5rem; }
h2 { color: var(--color-accent); margin-bottom: 1rem; font-size: 1.1rem; }
p { line-height: 1.6; margin-bottom: 1rem; }
a { color: var(--color-accent); text-decoration: none; }
a:hover { text-decoration: none; }

/* === Site Header === */
.site-header {
    background: var(--color-card);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
}
.site-header-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    height: 56px;
    gap: 1.5rem;
}
.site-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-accent);
    font-weight: bold;
    font-size: 1.1rem;
    white-space: nowrap;
}
.site-logo img { height: 32px; width: 32px; }
.site-logo:hover { color: var(--color-accent-hover); }
.site-nav {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    flex: 1;
}
.site-nav a { color: var(--color-text-secondary); font-size: 0.9rem; white-space: nowrap; }
.site-nav a:hover, .site-nav a.active { color: var(--color-accent); }
.site-user {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    white-space: nowrap;
    margin-left: auto;
}
.site-user .user-name { color: var(--color-text-muted); font-size: 0.85rem; }
.site-user a { color: var(--color-text-secondary); font-size: 0.9rem; }
.site-user a:hover { color: var(--color-accent); }

/* === Theme toggle === */
.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    padding: 4px 6px;
    color: var(--color-accent);
    line-height: 1;
    border-radius: 4px;
    transition: opacity 0.2s;
}
.theme-toggle:hover { opacity: 0.8; }

/* === Hamburger button (hidden on desktop) === */
.hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    margin-left: auto;
    flex-direction: column;
    gap: 5px;
}
.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text-secondary);
    border-radius: 2px;
    transition: transform 0.2s, opacity 0.2s;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* === Nav collapse wrapper (transparent on desktop) === */
.nav-collapse {
    display: contents;
}

/* === Site Content === */
.site-content { max-width: 1200px; margin: 0 auto; padding: 2rem; }

/* === Layout: centered pages (login, setup, hud_link) === */
.page-centered {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: calc(100vh - 57px);
}

@media (max-width: 768px) {
    .site-header-inner { padding: 0 1rem; gap: 0; flex-wrap: wrap; height: auto; min-height: 56px; }
    .site-logo { padding: 12px 0; }
    .site-logo span { display: none; }

    .hamburger { display: flex; }

    .theme-toggle { margin-left: auto; margin-right: 0.5rem; }
    .hamburger { margin-left: 0; }

    .nav-collapse {
        display: none;
        width: 100%;
        flex-direction: column;
        gap: 0.5rem;
        padding: 0 0 1rem;
        border-top: 1px solid var(--color-border);
    }
    .nav-collapse.open { display: flex; }

    .site-nav {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    .site-nav a { font-size: 1rem; padding: 0.25rem 0; }

    .site-user {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
        border-top: 1px solid var(--color-border);
        padding-top: 0.5rem;
        margin-left: 0;
    }
    .site-user a { font-size: 1rem; padding: 0.25rem 0; }
}

/* === Layout: container === */
.container { max-width: 900px; margin: 0 auto; padding: 20px; }

/* === Layout: grid === */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
    max-width: 1000px;
}

/* === Navigation === */
.nav { margin-bottom: 2rem; }
.nav a { color: var(--color-accent); text-decoration: none; margin: 0 0.5rem; }
.nav a:hover { text-decoration: none; }
.nav .spacer { flex: 1; }
.nav .user-info { color: var(--color-text-muted); font-size: 0.9em; }

/* === Cards === */
.card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}
.card h2 { color: var(--color-accent); margin-bottom: 1rem; font-size: 1.2rem; }
.card h3 { color: var(--color-accent); margin-bottom: 0.5rem; }
.card p { margin-bottom: 0.3rem; font-size: 0.9rem; }

/* === Forms === */
label { display: block; margin-bottom: 0.3rem; color: var(--color-label); font-size: 0.85rem; }
input, select, textarea {
    background: var(--color-input-bg);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    padding: 0.5rem;
    border-radius: 6px;
    width: 100%;
    margin-bottom: 1rem;
    font-family: inherit;
}
input[readonly] { color: var(--color-text-muted); cursor: default; }
textarea { min-height: 80px; resize: vertical; }

/* === Buttons === */
.btn {
    background: var(--color-accent);
    color: var(--color-btn-text);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    font-weight: bold;
    font-size: 0.9rem;
}
.btn:hover { background: var(--color-accent-hover); }
.btn-sm { padding: 0.3rem 0.6rem; font-size: 0.8rem; }
.btn-danger { background: var(--color-btn-danger); color: #fff; }
.btn-danger:hover { background: var(--color-btn-danger-hover); }

/* === Badges === */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: bold;
    vertical-align: middle;
    margin-left: 0.5rem;
}
.badge-easy { background: var(--color-badge-easy-bg); color: var(--color-badge-easy-text); }
.badge-medium { background: var(--color-badge-medium-bg); color: var(--color-badge-medium-text); }
.badge-hard { background: var(--color-badge-hard-bg); color: var(--color-badge-hard-text); }
.badge-active { background: var(--color-badge-active-bg); color: var(--color-badge-active-text); }
.badge-inactive { background: var(--color-badge-inactive-bg); color: var(--color-badge-inactive-text); }
.badge-pending { background: var(--color-badge-pending-bg); color: var(--color-badge-pending-text); }
.badge-ok { background: var(--color-badge-ok-bg); color: var(--color-badge-ok-text); }
.badge-fail { background: var(--color-badge-fail-bg); color: var(--color-badge-fail-text); }
.badge-hub { background: var(--color-badge-hub-bg); color: var(--color-badge-hub-text); }
.badge-neutral { background: var(--color-badge-neutral-bg); color: var(--color-badge-neutral-text); }

/* === Tables === */
table { width: 100%; border-collapse: collapse; margin-top: 0.5rem; display: block; overflow-x: auto; }
th, td { padding: 0.4rem 0.5rem; text-align: left; border-bottom: 1px solid var(--color-border); font-size: 0.85rem; }
th { color: var(--color-accent); text-transform: uppercase; font-size: 0.75rem; }

/* === Messages === */
.msg { padding: 0.5rem; border-radius: 6px; margin-bottom: 1rem; font-size: 0.9rem; }
.msg-ok { background: var(--color-msg-ok-bg); color: var(--color-msg-ok-text); }
.msg-err { background: var(--color-msg-err-bg); color: var(--color-msg-err-text); }
.msg-warn { background: var(--color-msg-warn-bg); color: var(--color-msg-warn-text); }
.error { background: var(--color-msg-err-bg); color: var(--color-msg-err-text); padding: 0.5rem; border-radius: 6px; margin-bottom: 1rem; font-size: 0.9rem; }
.success { background: var(--color-msg-ok-bg); color: var(--color-msg-ok-text); padding: 0.5rem; border-radius: 6px; margin-bottom: 1rem; font-size: 0.9rem; }
.info { background: var(--color-msg-info-bg); color: var(--color-msg-info-text); padding: 0.5rem; border-radius: 6px; margin-bottom: 1rem; font-size: 0.9rem; }

/* === Utility === */
.sub { color: var(--color-text-muted); font-size: 0.85rem; }
.loading { text-align: center; padding: 40px; color: var(--color-text-muted); }
.empty { color: var(--color-text-dim); font-style: italic; padding: 6px 0; font-size: 0.9rem; }

/* === Directory === */
.land-list { display: grid; gap: 16px; }
.land-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 16px;
    text-decoration: none;
    color: inherit;
    transition: border-color 0.2s;
    display: block;
}
.land-card:hover { border-color: var(--color-accent); }
.land-card h2 { color: var(--color-accent); font-size: 1.2em; margin-bottom: 4px; }
.land-meta { color: var(--color-text-muted); font-size: 0.9em; }
.subtitle { color: var(--color-text-muted); margin-bottom: 24px; }
.coins-info { margin-top: 8px; font-size: 0.95em; }

/* === Land detail === */
.meta { color: var(--color-text-muted); margin-bottom: 20px; font-size: 0.95em; }
.section {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 16px;
}
.section h3 { color: var(--color-accent); margin-bottom: 8px; font-size: 1.1em; }
.tier-row {
    display: flex;
    justify-content: space-between;
    padding: 4px 0;
    border-bottom: 1px solid var(--color-border);
}
.tier-row:last-child { border-bottom: none; }
.tier-reward { font-weight: 600; }
.hint-note { color: var(--color-text-muted); font-style: italic; }
.hint-item {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    padding: 10px;
    margin-bottom: 8px;
}
.hint-tier { color: var(--color-accent); font-weight: 600; font-size: 0.9em; }
.hint-label { margin-top: 4px; }
.back { display: inline-block; margin-bottom: 16px; font-size: 0.9em; }

/* === Leaderboard === */
.tabs { margin-bottom: 1.5rem; }
.tab {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    padding: 0.5rem 1.2rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    margin-right: 0.5rem;
}
.tab.active { background: var(--color-accent); color: var(--color-btn-text); font-weight: bold; border-color: var(--color-accent); }
.rank-1 { color: var(--color-rank-1); font-weight: bold; font-size: 1.1rem; }
.rank-2 { color: var(--color-rank-2); font-weight: bold; }
.rank-3 { color: var(--color-rank-3); font-weight: bold; }

/* === Me === */
.progress-bar { background: var(--color-progress-track); border-radius: 8px; height: 24px; margin: 0.5rem 0; overflow: hidden; }
.progress-fill { background: linear-gradient(90deg, var(--color-progress-fill-start), var(--color-progress-fill-end)); height: 100%; border-radius: 8px; transition: width 0.3s; }
.logged-in { background: var(--color-logged-in-bg); border: 1px solid var(--color-logged-in-border); padding: 1rem; border-radius: 8px; margin-bottom: 1rem; }

/* === Owner Stats === */
.stats-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    max-width: 1000px;
    margin-bottom: 1.5rem;
}
.stat-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 1.2rem;
    text-align: center;
}
.stat-value {
    color: var(--color-accent);
    font-size: 2rem;
    font-weight: bold;
    line-height: 1.2;
}
.stat-label {
    color: var(--color-text-muted);
    font-size: 0.85rem;
    margin-top: 0.3rem;
}
.stats-charts {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    max-width: 1000px;
    margin-bottom: 1.5rem;
}
.chart-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 1.2rem;
}
.chart-card h3 {
    color: var(--color-accent);
    font-size: 0.95rem;
    margin-bottom: 0.8rem;
}
@media (max-width: 600px) {
    .stats-cards { grid-template-columns: 1fr; }
    .stats-charts { grid-template-columns: 1fr; }
}

/* === Owner === */
.token-box {
    background: var(--color-token-box-bg);
    border: 2px solid var(--color-accent);
    padding: 0.8rem;
    border-radius: 6px;
    font-family: monospace;
    font-size: 0.75rem;
    word-break: break-all;
    margin: 0.5rem 0;
    user-select: all;
    cursor: text;
}
.api-key-box {
    background: var(--color-input-bg);
    border: 1px solid var(--color-border);
    padding: 0.5rem;
    border-radius: 6px;
    font-family: monospace;
    font-size: 0.8rem;
    word-break: break-all;
    margin-bottom: 0.5rem;
}
.paired-yes { color: var(--color-paired-yes); }
.paired-no { color: var(--color-text-muted); }