/* ===== CSS VARIABLES & RESET ===== */
:root {
    --bg-primary: #0a0e1a;
    --bg-secondary: #111827;
    --bg-card: #1a1f35;
    --bg-card-hover: #222845;
    --surface: rgba(255,255,255,0.03);
    --border: rgba(255,255,255,0.08);
    --border-hover: rgba(255,255,255,0.15);
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent-gold: #f59e0b;
    --accent-gold-glow: rgba(245,158,11,0.3);
    --accent-blue: #3b82f6;
    --accent-blue-glow: rgba(59,130,246,0.3);
    --accent-purple: #8b5cf6;
    --accent-purple-glow: rgba(139,92,246,0.3);
    --accent-pink: #ec4899;
    --accent-green: #10b981;
    --accent-red: #ef4444;
    --gradient-gold: linear-gradient(135deg, #f59e0b, #d97706);
    --gradient-silver: linear-gradient(135deg, #94a3b8, #64748b);
    --gradient-bronze: linear-gradient(135deg, #d97706, #92400e);
    --gradient-hero: linear-gradient(135deg, #1e1b4b 0%, #0f172a 50%, #0c1222 100%);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.5);
    --shadow-glow-gold: 0 0 30px rgba(245,158,11,0.2);
    --shadow-glow-blue: 0 0 30px rgba(59,130,246,0.15);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
    --font-display: 'Outfit', 'Inter', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-main);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

/* ===== BACKGROUND PARTICLES ===== */
.bg-particles {
    position: fixed; inset: 0;
    pointer-events: none; z-index: 0;
    overflow: hidden;
}
.bg-particles .particle {
    position: absolute;
    border-radius: 50%;
    animation: floatParticle linear infinite;
    opacity: 0;
}
@keyframes floatParticle {
    0% { transform: translateY(100vh) scale(0); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-10vh) scale(1); opacity: 0; }
}

/* ===== HEADER ===== */
.header {
    position: sticky; top: 0; z-index: 100;
    background: rgba(10,14,26,0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 1rem 2rem;
}
.header-content {
    max-width: 1400px; margin: 0 auto;
    display: flex; justify-content: space-between; align-items: center;
    flex-wrap: wrap; gap: 1rem;
}
.logo-section { display: flex; align-items: center; gap: 1rem; }
.logo-icon {
    width: 48px; height: 48px; color: var(--accent-gold);
    filter: drop-shadow(0 0 10px rgba(245,158,11,0.4));
}
.header-title {
    font-family: var(--font-display);
    font-size: 1.5rem; font-weight: 800;
    background: linear-gradient(135deg, var(--accent-gold), #fbbf24, var(--accent-gold));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.header-subtitle { font-size: 0.8rem; color: var(--text-secondary); font-weight: 400; }
.header-stats { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.stat-pill {
    display: flex; align-items: center; gap: 0.4rem;
    background: var(--surface); border: 1px solid var(--border);
    padding: 0.5rem 1rem; border-radius: 100px;
    font-size: 0.85rem;
}
.stat-icon { font-size: 1.1rem; }
.stat-value { font-weight: 700; color: var(--text-primary); }
.stat-label { color: var(--text-secondary); font-size: 0.8rem; }
.live-pill {
    background: rgba(239,68,68,0.1); border-color: rgba(239,68,68,0.3);
    color: var(--accent-red); animation: livePulse 2s ease-in-out infinite;
}
.live-dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--accent-red);
    animation: dotPulse 1.5s ease-in-out infinite;
}
@keyframes livePulse { 0%,100% { opacity: 0.8; } 50% { opacity: 1; } }
@keyframes dotPulse { 0%,100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(239,68,68,0.5); } 50% { transform: scale(1.2); box-shadow: 0 0 0 6px rgba(239,68,68,0); } }

/* ===== MAIN CONTENT ===== */
.main-content {
    max-width: 1400px; margin: 0 auto;
    padding: 2rem; position: relative; z-index: 1;
}

/* ===== SECTION TITLES ===== */
.section-title {
    font-family: var(--font-display);
    font-size: 1.75rem; font-weight: 700;
    display: flex; align-items: center; gap: 0.75rem;
    margin-bottom: 1.5rem;
}
.title-icon { font-size: 1.5rem; }

/* ===== PODIUM ===== */
.podium-section { margin-bottom: 3rem; }
.podium-container {
    display: flex; justify-content: center; align-items: flex-end;
    gap: 1.5rem; min-height: 320px; padding-top: 2rem;
}
.podium-card {
    position: relative; width: 280px;
    border-radius: var(--radius-lg);
    padding: 1.5rem; text-align: center;
    transition: transform 0.4s cubic-bezier(0.34,1.56,0.64,1);
    cursor: default;
}
.podium-card:hover { transform: translateY(-8px) scale(1.03); }
.podium-card.gold {
    background: linear-gradient(180deg, rgba(245,158,11,0.15) 0%, rgba(245,158,11,0.05) 100%);
    border: 2px solid rgba(245,158,11,0.4);
    box-shadow: var(--shadow-glow-gold);
    order: 2; min-height: 280px;
}
.podium-card.silver {
    background: linear-gradient(180deg, rgba(148,163,184,0.12) 0%, rgba(148,163,184,0.04) 100%);
    border: 2px solid rgba(148,163,184,0.3);
    order: 1; min-height: 240px;
}
.podium-card.bronze {
    background: linear-gradient(180deg, rgba(217,119,6,0.12) 0%, rgba(217,119,6,0.04) 100%);
    border: 2px solid rgba(217,119,6,0.3);
    order: 3; min-height: 220px;
}
.podium-medal {
    font-size: 3rem; margin-bottom: 0.5rem;
    filter: drop-shadow(0 2px 8px rgba(0,0,0,0.3));
    animation: medalBounce 3s ease-in-out infinite;
}
@keyframes medalBounce { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
.podium-likes {
    font-family: var(--font-display);
    font-size: 2.5rem; font-weight: 900;
    margin-bottom: 0.25rem;
}
.gold .podium-likes { color: var(--accent-gold); }
.silver .podium-likes { color: #c0c0c0; }
.bronze .podium-likes { color: #cd7f32; }
.podium-likes-label { font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 0.75rem; }
.podium-name {
    font-size: 0.8rem; color: var(--text-secondary);
    line-height: 1.4;
    display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.podium-link {
    display: inline-flex; align-items: center; gap: 0.35rem;
    margin-top: 0.75rem; padding: 0.4rem 0.8rem;
    border-radius: 100px; font-size: 0.75rem; font-weight: 600;
    text-decoration: none; transition: all 0.3s;
}
.gold .podium-link { background: rgba(245,158,11,0.15); color: var(--accent-gold); }
.gold .podium-link:hover { background: rgba(245,158,11,0.3); }
.silver .podium-link { background: rgba(148,163,184,0.15); color: #c0c0c0; }
.silver .podium-link:hover { background: rgba(148,163,184,0.3); }
.bronze .podium-link { background: rgba(217,119,6,0.15); color: #cd7f32; }
.bronze .podium-link:hover { background: rgba(217,119,6,0.3); }

/* ===== CONTROLS ===== */
.controls-section { margin-bottom: 2rem; }
.controls-bar {
    display: flex; justify-content: space-between; align-items: center;
    flex-wrap: wrap; gap: 1rem;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 1rem 1.5rem;
}
.search-container { position: relative; flex: 1; min-width: 200px; max-width: 400px; }
.search-icon {
    position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
    width: 18px; height: 18px; color: var(--text-muted);
}
.search-input {
    width: 100%; padding: 0.6rem 1rem 0.6rem 2.5rem;
    background: var(--surface); border: 1px solid var(--border);
    border-radius: 100px; color: var(--text-primary);
    font-size: 0.9rem; font-family: var(--font-main);
    transition: all 0.3s;
}
.search-input:focus { outline: none; border-color: var(--accent-blue); box-shadow: 0 0 0 3px var(--accent-blue-glow); }
.search-input::placeholder { color: var(--text-muted); }
.view-controls { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.btn-sort, .btn-update {
    display: inline-flex; align-items: center; gap: 0.4rem;
    padding: 0.5rem 1rem; border-radius: 100px;
    font-size: 0.85rem; font-weight: 500; font-family: var(--font-main);
    border: 1px solid var(--border); cursor: pointer; transition: all 0.3s;
}
.btn-sort { background: transparent; color: var(--text-secondary); }
.btn-sort:hover { background: var(--surface); color: var(--text-primary); }
.btn-sort.active { background: rgba(59,130,246,0.15); color: var(--accent-blue); border-color: rgba(59,130,246,0.3); }
.btn-update {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    color: white; border: none; font-weight: 600;
}
.btn-update:hover { transform: translateY(-1px); box-shadow: var(--shadow-glow-blue); }

/* ===== RANKING GRID ===== */
.ranking-section { margin-bottom: 3rem; }
.ranking-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 1rem; }
.rank-card {
    position: relative;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 1.25rem;
    transition: all 0.4s cubic-bezier(0.34,1.56,0.64,1);
    overflow: hidden;
    animation: cardSlideIn 0.5s ease-out forwards;
    opacity: 0;
}
@keyframes cardSlideIn { to { opacity: 1; transform: translateY(0); } }
.rank-card { transform: translateY(20px); }
.rank-card:hover { border-color: var(--border-hover); transform: translateY(-4px); box-shadow: var(--shadow-md); }
.rank-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple), var(--accent-pink));
    opacity: 0; transition: opacity 0.3s;
}
.rank-card:hover::before { opacity: 1; }
.rank-card.top-1::before { opacity: 1; background: var(--gradient-gold); }
.rank-card.top-2::before { opacity: 1; background: var(--gradient-silver); }
.rank-card.top-3::before { opacity: 1; background: var(--gradient-bronze); }
.card-header { display: flex; align-items: flex-start; gap: 1rem; margin-bottom: 0.75rem; }
.rank-badge {
    flex-shrink: 0; width: 40px; height: 40px;
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
    font-family: var(--font-display); font-weight: 800; font-size: 1rem;
    background: var(--surface); border: 2px solid var(--border); color: var(--text-secondary);
}
.top-1 .rank-badge { background: rgba(245,158,11,0.15); border-color: var(--accent-gold); color: var(--accent-gold); }
.top-2 .rank-badge { background: rgba(148,163,184,0.1); border-color: #c0c0c0; color: #c0c0c0; }
.top-3 .rank-badge { background: rgba(217,119,6,0.1); border-color: #cd7f32; color: #cd7f32; }
.card-info { flex: 1; min-width: 0; }
.card-obra-name {
    font-size: 0.82rem; font-weight: 500; color: var(--text-primary);
    line-height: 1.4; margin-bottom: 0.25rem;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.card-short-name { font-size: 0.7rem; color: var(--text-muted); }
.card-body { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.likes-display { display: flex; align-items: center; gap: 0.5rem; }
.likes-heart {
    font-size: 1.5rem;
    animation: heartBeat 2s ease-in-out infinite;
}
@keyframes heartBeat { 0%,100% { transform: scale(1); } 14% { transform: scale(1.15); } 28% { transform: scale(1); } 42% { transform: scale(1.1); } }
.likes-count {
    font-family: var(--font-display);
    font-size: 1.75rem; font-weight: 800;
    background: linear-gradient(135deg, var(--accent-pink), var(--accent-purple));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.card-actions { display: flex; gap: 0.5rem; }
.btn-icon {
    width: 36px; height: 36px;
    border-radius: 50%; border: 1px solid var(--border);
    background: transparent; color: var(--text-secondary);
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; transition: all 0.3s;
}
.btn-icon:hover { background: var(--surface); color: var(--text-primary); border-color: var(--border-hover); }
.btn-icon.btn-fb:hover { color: #1877f2; border-color: rgba(24,119,242,0.4); background: rgba(24,119,242,0.1); }
.btn-icon.btn-edit:hover { color: var(--accent-green); border-color: rgba(16,185,129,0.4); background: rgba(16,185,129,0.1); }
.likes-bar-container { margin-top: 0.75rem; }
.likes-bar {
    height: 4px; border-radius: 2px; background: var(--surface);
    overflow: hidden;
}
.likes-bar-fill {
    height: 100%; border-radius: 2px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
    transition: width 1s ease-out;
}
.likes-percent { font-size: 0.7rem; color: var(--text-muted); margin-top: 0.25rem; text-align: right; }

/* ===== CHART ===== */
.chart-section { margin-bottom: 3rem; }
.chart-container {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 2rem;
    overflow-x: auto;
}
#likesChart { width: 100%; max-height: 500px; }

/* ===== MODAL ===== */
.modal-overlay {
    position: fixed; inset: 0; z-index: 1000;
    background: rgba(0,0,0,0.7); backdrop-filter: blur(8px);
    display: none; align-items: center; justify-content: center;
    padding: 2rem;
}
.modal-overlay.active { display: flex; }
.modal-content {
    background: var(--bg-secondary); border: 1px solid var(--border);
    border-radius: var(--radius-xl); width: 100%; max-width: 700px;
    max-height: 85vh; display: flex; flex-direction: column;
    box-shadow: var(--shadow-lg);
    animation: modalSlide 0.3s ease-out;
}
@keyframes modalSlide { from { transform: translateY(30px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.modal-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 1.25rem 1.5rem; border-bottom: 1px solid var(--border);
}
.modal-title { display: flex; align-items: center; gap: 0.75rem; font-family: var(--font-display); font-size: 1.2rem; font-weight: 700; }
.modal-close {
    width: 36px; height: 36px; border-radius: 50%;
    border: none; background: var(--surface);
    color: var(--text-secondary); font-size: 1.5rem;
    cursor: pointer; transition: all 0.3s;
    display: flex; align-items: center; justify-content: center;
}
.modal-close:hover { background: rgba(239,68,68,0.15); color: var(--accent-red); }
.modal-body { padding: 1.25rem 1.5rem; overflow-y: auto; flex: 1; }
.modal-instructions { font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 1rem; line-height: 1.6; }
.modal-list { display: flex; flex-direction: column; gap: 0.75rem; }
.modal-item {
    display: flex; align-items: center; gap: 1rem;
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius-md); padding: 0.75rem 1rem;
    transition: all 0.3s;
}
.modal-item:hover { border-color: var(--border-hover); }
.modal-rank { font-family: var(--font-display); font-weight: 700; color: var(--text-muted); width: 24px; text-align: center; flex-shrink: 0; }
.modal-item-name { flex: 1; font-size: 0.8rem; color: var(--text-secondary); line-height: 1.3; }
.modal-item-link {
    flex-shrink: 0; color: #1877f2; text-decoration: none; font-size: 0.75rem; font-weight: 600;
    padding: 0.3rem 0.6rem; border-radius: 100px; background: rgba(24,119,242,0.1);
    transition: all 0.3s;
}
.modal-item-link:hover { background: rgba(24,119,242,0.2); }
.modal-item-input {
    width: 80px; padding: 0.4rem 0.6rem;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-sm); color: var(--text-primary);
    font-family: var(--font-display); font-weight: 600; font-size: 0.9rem;
    text-align: center; transition: all 0.3s;
}
.modal-item-input:focus { outline: none; border-color: var(--accent-blue); box-shadow: 0 0 0 3px var(--accent-blue-glow); }
.modal-footer { padding: 1rem 1.5rem; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; }
.btn-save {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.65rem 1.5rem; border-radius: 100px;
    background: linear-gradient(135deg, var(--accent-green), #059669);
    color: white; font-weight: 600; font-size: 0.9rem;
    border: none; cursor: pointer; transition: all 0.3s;
    font-family: var(--font-main);
}
.btn-save:hover { transform: translateY(-1px); box-shadow: 0 0 20px rgba(16,185,129,0.3); }

/* ===== SINGLE UPDATE POPOVER ===== */
.popover-overlay {
    position: fixed; inset: 0; z-index: 1001;
    background: rgba(0,0,0,0.5); backdrop-filter: blur(4px);
    display: none; align-items: center; justify-content: center;
}
.popover-overlay.active { display: flex; }
.popover-content {
    background: var(--bg-secondary); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 1.5rem;
    width: 100%; max-width: 380px; box-shadow: var(--shadow-lg);
    animation: modalSlide 0.2s ease-out;
}
.popover-title { font-family: var(--font-display); font-size: 1.1rem; font-weight: 700; margin-bottom: 0.5rem; }
.popover-obra { font-size: 0.8rem; color: var(--text-secondary); margin-bottom: 1rem; line-height: 1.4; }
.popover-input-group { margin-bottom: 1rem; }
.popover-input-group label { font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 0.4rem; display: block; }
.popover-input {
    width: 100%; padding: 0.6rem 1rem;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-sm); color: var(--text-primary);
    font-family: var(--font-display); font-weight: 700; font-size: 1.2rem;
    text-align: center;
}
.popover-input:focus { outline: none; border-color: var(--accent-blue); box-shadow: 0 0 0 3px var(--accent-blue-glow); }
.popover-actions { display: flex; gap: 0.75rem; justify-content: flex-end; }
.btn-cancel, .btn-confirm {
    padding: 0.5rem 1.25rem; border-radius: 100px;
    font-weight: 600; font-size: 0.85rem; cursor: pointer;
    border: none; font-family: var(--font-main); transition: all 0.3s;
}
.btn-cancel { background: var(--surface); color: var(--text-secondary); border: 1px solid var(--border); }
.btn-cancel:hover { background: rgba(239,68,68,0.1); color: var(--accent-red); }
.btn-confirm { background: linear-gradient(135deg, var(--accent-green), #059669); color: white; }
.btn-confirm:hover { transform: translateY(-1px); }

/* ===== FOOTER ===== */
.footer {
    text-align: center; padding: 2rem;
    border-top: 1px solid var(--border);
    color: var(--text-muted); font-size: 0.85rem;
}
.footer-note { font-size: 0.75rem; margin-top: 0.5rem; }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
    .header { padding: 0.75rem 1rem; }
    .header-content { flex-direction: column; align-items: flex-start; }
    .main-content { padding: 1rem; }
    .podium-container { flex-direction: column; align-items: center; min-height: auto; }
    .podium-card { width: 100%; max-width: 340px; order: unset !important; min-height: auto !important; }
    .ranking-grid { grid-template-columns: 1fr; }
    .controls-bar { flex-direction: column; align-items: stretch; }
    .search-container { max-width: none; }
    .view-controls { justify-content: center; }
}

/* ===== TOAST ===== */
.toast-container {
    position: fixed; bottom: 2rem; right: 2rem; z-index: 2000;
    display: flex; flex-direction: column; gap: 0.5rem;
}
.toast {
    display: flex; align-items: center; gap: 0.75rem;
    background: var(--bg-secondary); border: 1px solid var(--border);
    border-radius: var(--radius-md); padding: 0.75rem 1.25rem;
    box-shadow: var(--shadow-lg); font-size: 0.85rem;
    animation: toastIn 0.3s ease-out;
    min-width: 250px;
}
.toast.success { border-color: rgba(16,185,129,0.4); }
.toast.success .toast-icon { color: var(--accent-green); }
@keyframes toastIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
.toast-icon { font-size: 1.2rem; }
.toast.warning { border-color: rgba(245,158,11,0.4); }
.toast.warning .toast-icon { color: var(--accent-gold); }
.toast.error { border-color: rgba(239,68,68,0.4); }
.toast.error .toast-icon { color: var(--accent-red); }

/* DB Status */
.db-connected { background: rgba(16,185,129,0.1); border-color: rgba(16,185,129,0.3); }
.db-disconnected { background: rgba(239,68,68,0.1); border-color: rgba(239,68,68,0.3); }
.db-warning { background: rgba(245,158,11,0.1); border-color: rgba(245,158,11,0.3); }
.db-error { background: rgba(239,68,68,0.1); border-color: rgba(239,68,68,0.3); }

/* Modal instructions */
.modal-instructions ol { padding-left: 1.25rem; margin: 0.5rem 0; }
.modal-instructions li { margin-bottom: 0.25rem; }
.modal-note { color: var(--accent-green); font-weight: 500; margin-top: 0.5rem; }
.modal-footer { justify-content: space-between; align-items: center; }
.modal-last-update { font-size: 0.75rem; color: var(--text-muted); }

/* Popover video link */
.popover-video-link {
    display: block; text-align: center; margin-bottom: 1rem;
    padding: 0.6rem 1rem; border-radius: var(--radius-sm);
    background: rgba(24,119,242,0.1); border: 1px solid rgba(24,119,242,0.3);
    color: #1877f2; text-decoration: none; font-weight: 600; font-size: 0.85rem;
    transition: all 0.3s;
}
.popover-video-link:hover { background: rgba(24,119,242,0.2); }