/* ── Skill Progression Dashboard ── */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --bg-primary: #0a0a1a;
    --bg-card: #12122a;
    --bg-card-hover: #1a1a3a;
    --border-subtle: rgba(99, 102, 241, 0.15);
    --border-hover: rgba(99, 102, 241, 0.35);
    --text-primary: #e8e8f0;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --accent: #6366f1;
    --accent-glow: rgba(99, 102, 241, 0.25);

    /* Tier colors */
    --tier-awakening: #6b7280;
    --tier-learning: #3b82f6;
    --tier-developing: #f59e0b;
    --tier-competent: #22c55e;
    --tier-expert: #8b5cf6;
    --tier-master: #ef4444;
}

body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    min-height: 100vh;
}

/* ── Header ── */
.progress-header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 24px;
    border-bottom: 1px solid var(--border-subtle);
    background: rgba(10, 10, 26, 0.95);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(8px);
}

.progress-logo {
    font-size: 20px;
    font-weight: 800;
    color: var(--accent);
    text-decoration: none;
    letter-spacing: 2px;
}

.progress-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-secondary);
    flex: 1;
}

.progress-nav {
    display: flex;
    gap: 16px;
}

.progress-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}

.progress-nav a:hover {
    color: var(--text-primary);
}

.progress-auth {
    margin-left: 8px;
}

.progress-auth .header-login-btn {
    color: var(--accent);
    text-decoration: none;
    font-size: 14px;
    padding: 6px 14px;
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    transition: border-color 0.2s, background 0.2s;
}

.progress-auth .header-login-btn:hover {
    border-color: var(--border-hover);
    background: var(--accent-glow);
}

/* ── Hero Stats ── */
.progress-hero {
    text-align: center;
    padding: 48px 24px 32px;
}

.progress-subtitle {
    font-size: 22px;
    font-weight: 400;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
}

.hero-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.hero-stat-value {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
}

.hero-stat-label {
    font-size: 13px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ── Section Headings ── */
.section-heading {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
    padding-left: 12px;
    border-left: 3px solid var(--accent);
}

/* ── Training Pipeline ── */
.progress-pipeline {
    padding: 24px 24px 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.pipeline-stages {
    display: flex;
    align-items: center;
    gap: 0;
    overflow-x: auto;
    padding: 12px 0;
}

.pipeline-stage {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 130px;
    flex: 1;
    position: relative;
}

.pipeline-node {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    color: #fff;
    position: relative;
    z-index: 2;
    border: 3px solid transparent;
    transition: transform 0.3s, box-shadow 0.3s;
}

.pipeline-node:hover {
    transform: scale(1.1);
}

.pipeline-stage-label {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 8px;
    text-align: center;
    font-weight: 500;
}

.pipeline-stage-count {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 2px;
}

.pipeline-connector {
    height: 3px;
    flex: 0.5;
    min-width: 20px;
    background: var(--border-subtle);
    position: relative;
    top: -18px;
}

.pipeline-connector.active {
    background: linear-gradient(90deg, var(--accent), var(--accent-glow));
    animation: pipelineFlow 2s linear infinite;
}

@keyframes pipelineFlow {
    0% { opacity: 0.6; }
    50% { opacity: 1; }
    100% { opacity: 0.6; }
}

/* Pipeline node colors by stage */
.pipeline-node.stage-0 { background: var(--tier-awakening); border-color: rgba(107, 114, 128, 0.4); }
.pipeline-node.stage-1 { background: var(--tier-learning); border-color: rgba(59, 130, 246, 0.4); }
.pipeline-node.stage-2 { background: var(--tier-developing); border-color: rgba(245, 158, 11, 0.4); }
.pipeline-node.stage-3 { background: var(--tier-competent); border-color: rgba(34, 197, 94, 0.4); }
.pipeline-node.stage-4 { background: var(--tier-expert); border-color: rgba(139, 92, 246, 0.4); }
.pipeline-node.stage-5 { background: var(--tier-master); border-color: rgba(239, 68, 68, 0.4); }

.pipeline-node.stage-0:hover { box-shadow: 0 0 16px rgba(107, 114, 128, 0.5); }
.pipeline-node.stage-1:hover { box-shadow: 0 0 16px rgba(59, 130, 246, 0.5); }
.pipeline-node.stage-2:hover { box-shadow: 0 0 16px rgba(245, 158, 11, 0.5); }
.pipeline-node.stage-3:hover { box-shadow: 0 0 16px rgba(34, 197, 94, 0.5); }
.pipeline-node.stage-4:hover { box-shadow: 0 0 16px rgba(139, 92, 246, 0.5); }
.pipeline-node.stage-5:hover { box-shadow: 0 0 16px rgba(239, 68, 68, 0.5); }

/* ── Overview / Tier Chart ── */
.progress-overview {
    padding: 24px;
    max-width: 1000px;
    margin: 0 auto;
}

.overview-chart-wrap {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
    display: flex;
    justify-content: center;
}

#tier-chart {
    max-width: 100%;
    height: auto;
}

/* ── Top Performers ── */
.top-performers {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}

.top-performer-card {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    padding: 12px 20px;
    min-width: 200px;
}

.top-performer-rank {
    font-size: 24px;
    font-weight: 800;
    color: var(--accent);
    min-width: 28px;
}

.top-performer-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-card-hover);
    object-fit: cover;
}

.top-performer-info {
    display: flex;
    flex-direction: column;
}

.top-performer-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.top-performer-level {
    font-size: 12px;
    color: var(--text-muted);
}

/* ── Grid Controls ── */
.progress-grid-section {
    padding: 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.grid-controls {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.sort-controls {
    display: flex;
    align-items: center;
    gap: 8px;
}

.sort-controls label {
    font-size: 13px;
    color: var(--text-muted);
}

.sort-controls select {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    padding: 6px 12px;
    font-size: 13px;
    cursor: pointer;
}

.sort-controls select:focus {
    outline: 2px solid var(--accent);
    outline-offset: 1px;
}

.filter-chips {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    flex: 1;
}

.filter-chip {
    padding: 5px 14px;
    border-radius: 16px;
    font-size: 12px;
    font-weight: 600;
    border: 1px solid var(--border-subtle);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
    text-transform: capitalize;
}

.filter-chip:hover {
    border-color: var(--border-hover);
    color: var(--text-primary);
}

.filter-chip.active {
    color: #fff;
}

.filter-chip[data-tier="all"].active { background: var(--accent); border-color: var(--accent); }
.filter-chip[data-tier="Awakening"].active { background: var(--tier-awakening); border-color: var(--tier-awakening); }
.filter-chip[data-tier="Learning"].active { background: var(--tier-learning); border-color: var(--tier-learning); }
.filter-chip[data-tier="Developing"].active { background: var(--tier-developing); border-color: var(--tier-developing); }
.filter-chip[data-tier="Competent"].active { background: var(--tier-competent); border-color: var(--tier-competent); }
.filter-chip[data-tier="Expert"].active { background: var(--tier-expert); border-color: var(--tier-expert); }
.filter-chip[data-tier="Master"].active { background: var(--tier-master); border-color: var(--tier-master); }

/* ── Bot Progress Grid ── */
.progress-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
}

.bot-progress-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    padding: 16px;
    cursor: pointer;
    transition: border-color 0.2s, transform 0.15s, box-shadow 0.2s;
    text-decoration: none;
    display: block;
    color: inherit;
}

.bot-progress-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.bot-card-top {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.bot-card-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-card-hover);
    object-fit: cover;
    flex-shrink: 0;
}

.bot-card-info {
    flex: 1;
    min-width: 0;
}

.bot-card-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.bot-card-pairs {
    font-size: 12px;
    color: var(--text-muted);
    font-variant-numeric: tabular-nums;
}

/* Tier Badge */
.tier-badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 700;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    flex-shrink: 0;
}

.tier-badge[data-tier="Awakening"] { background: var(--tier-awakening); }
.tier-badge[data-tier="Learning"] { background: var(--tier-learning); }
.tier-badge[data-tier="Developing"] { background: var(--tier-developing); }
.tier-badge[data-tier="Competent"] { background: var(--tier-competent); }
.tier-badge[data-tier="Expert"] { background: var(--tier-expert); }
.tier-badge[data-tier="Master"] { background: var(--tier-master); }

/* Progress Bar */
.bot-card-progress {
    margin-top: 8px;
}

.progress-bar-bg {
    height: 6px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 3px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    border-radius: 3px;
    width: 0;
    transition: width 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.progress-bar-fill[data-tier="Awakening"] { background: var(--tier-awakening); }
.progress-bar-fill[data-tier="Learning"] { background: var(--tier-learning); }
.progress-bar-fill[data-tier="Developing"] { background: var(--tier-developing); }
.progress-bar-fill[data-tier="Competent"] { background: var(--tier-competent); }
.progress-bar-fill[data-tier="Expert"] { background: var(--tier-expert); }
.progress-bar-fill[data-tier="Master"] { background: var(--tier-master); }

.progress-bar-label {
    display: flex;
    justify-content: space-between;
    margin-top: 4px;
}

.progress-bar-pct {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    font-variant-numeric: tabular-nums;
}

.progress-bar-tier {
    font-size: 11px;
    color: var(--text-muted);
}

/* ── Loading ── */
.progress-loading {
    text-align: center;
    padding: 80px 24px;
    color: var(--text-muted);
    font-size: 14px;
}

.progress-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--border-subtle);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 16px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ── Footer ── */
.progress-footer {
    text-align: center;
    padding: 32px 24px;
    color: var(--text-muted);
    font-size: 13px;
    border-top: 1px solid var(--border-subtle);
    margin-top: 48px;
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .progress-header {
        flex-wrap: wrap;
        gap: 8px;
        padding: 12px 16px;
    }

    .progress-title {
        order: 3;
        flex-basis: 100%;
        font-size: 14px;
    }

    .hero-stats {
        gap: 24px;
    }

    .hero-stat-value {
        font-size: 28px;
    }

    .pipeline-stages {
        padding-bottom: 8px;
    }

    .pipeline-stage {
        min-width: 100px;
    }

    .pipeline-node {
        width: 44px;
        height: 44px;
        font-size: 12px;
    }

    .progress-grid {
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
        gap: 12px;
    }

    .grid-controls {
        flex-direction: column;
        align-items: flex-start;
    }

    .top-performers {
        flex-direction: column;
        align-items: center;
    }

    .overview-chart-wrap {
        padding: 16px 8px;
    }
}

@media (max-width: 480px) {
    .progress-nav {
        display: none;
    }

    .progress-grid {
        grid-template-columns: 1fr;
    }

    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }
}