/* ???????????????????????????????????????????????????????????????????????????
   Prezzi Carburanti Italia ? BMW-Style Design System
   Inspired by bmw.samuelecorona.it
   ??????????????????????????????????????????????????????????????????????????? */

/* ?? Tokens ??????????????????????????????????????????????????????????????? */
:root {
    --bg: #07111d;
    --bg2: #091827;
    --card: rgba(12, 27, 45, 0.88);
    --card-solid: #0a1b2d;
    --card-hover: rgba(18, 38, 62, 0.92);
    --line: rgba(74, 112, 148, 0.42);
    --line-light: rgba(74, 112, 148, 0.2);
    --text: #f4f7fb;
    --muted: #9fb2c7;
    --dim: #5a7a96;
    --blue: #3f8cff;
    --blue-bg: rgba(63, 140, 255, 0.12);
    --green: #64e78b;
    --green-bg: rgba(100, 231, 139, 0.12);
    --amber: #ffc65b;
    --amber-bg: rgba(255, 198, 91, 0.12);
    --red: #ff6b6b;
    --red-bg: rgba(255, 107, 107, 0.12);
    --purple: #a78bfa;
    --radius: 20px;
    --radius-sm: 12px;
    --radius-xs: 8px;
    --shadow: 0 20px 60px rgba(0,0,0,0.18);
    --shadow-sm: 0 4px 20px rgba(0,0,0,0.15);
    --font: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
    --font-mono: 'SF Mono', 'Fira Code', Consolas, monospace;
}

/* ?? Reset & Base ????????????????????????????????????????????????????????? */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }
body {
    font-family: var(--font);
    background:
        radial-gradient(circle at 15% 10%, #163152 0, transparent 32%),
        radial-gradient(circle at 90% 4%, #0e3154 0, transparent 30%),
        linear-gradient(180deg, var(--bg2), var(--bg));
    background-attachment: fixed;
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Ambient glow blobs */
body::before, body::after {
    content: '';
    position: fixed;
    filter: blur(90px);
    opacity: 0.15;
    pointer-events: none;
    border-radius: 50%;
    z-index: 0;
}
body::before {
    width: 360px; height: 360px;
    background: #277eff;
    top: 120px; left: -150px;
}
body::after {
    width: 420px; height: 420px;
    background: #0ad0a0;
    right: -220px; top: 500px;
}

.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 14px;
    position: relative;
    z-index: 2;
    width: min(1240px, 100% - 28px);
}

/* ?? Header ??????????????????????????????????????????????????????????????? */
.header {
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    background: rgba(7, 17, 29, 0.8);
    border-bottom: 1px solid var(--line-light);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}
.header h1 {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--text) 0%, var(--blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.subtitle { font-size: 0.82rem; color: var(--muted); }
.header-right { display: flex; align-items: center; gap: 10px; }

.badge {
    background: var(--blue-bg);
    color: var(--blue);
    padding: 5px 14px;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
    border: 1px solid rgba(63, 140, 255, 0.2);
}

.btn-icon {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius-xs);
    padding: 7px 11px;
    cursor: pointer;
    font-size: 1.05rem;
    color: var(--muted);
    transition: all 0.2s;
}
.btn-icon:hover { background: var(--card-hover); color: var(--text); }

/* ?? Loading ?????????????????????????????????????????????????????????????? */
.loading-overlay {
    text-align: center;
    padding: 60px 20px;
    color: var(--muted);
}
.spinner {
    width: 40px; height: 40px;
    border: 3px solid var(--line);
    border-top-color: var(--blue);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 16px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ?? Error ???????????????????????????????????????????????????????????????? */
.error-banner {
    background: var(--red-bg);
    color: var(--red);
    padding: 12px 20px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 107, 107, 0.25);
    margin: 20px 0;
    font-weight: 500;
}

/* ?? Stats banner ????????????????????????????????????????????????????????? */
.stats-banner {
    display: flex;
    gap: 24px;
    padding: 14px 0;
    font-size: 0.88rem;
    color: var(--muted);
    border-bottom: 1px solid var(--line-light);
    margin-bottom: 8px;
}
.stats-banner strong { color: var(--text); font-family: var(--font-mono); }

/* ?? Sections ????????????????????????????????????????????????????????????? */
.section { margin: 36px 0; }
.section h2 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}
.section h2 small {
    font-weight: 400;
    color: var(--dim);
    font-size: 0.78rem;
}
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 16px;
}
.section-header h2 { margin-bottom: 0; }
.hint { color: var(--dim); font-size: 0.82rem; margin: -8px 0 12px; }

/* ?? Cards ???????????????????????????????????????????????????????????????? */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 14px;
}

.card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 22px;
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: transform 0.2s, box-shadow 0.2s;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }

.card-label {
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--muted);
    margin-bottom: 10px;
}
.card-price {
    font-size: 2.2rem;
    font-weight: 800;
    font-family: var(--font-mono);
    line-height: 1.1;
    margin-bottom: 8px;
}
.card-price .unit {
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--muted);
    font-family: var(--font);
}

.card-delta {
    font-size: 0.82rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 4px;
}
.card-delta.up { color: var(--red); }
.card-delta.down { color: var(--green); }
.card-delta.flat { color: var(--dim); }

.card-range {
    font-size: 0.75rem;
    color: var(--dim);
    margin-top: 6px;
}

.card-fuel-benzina { border-left: 3px solid var(--green); }
.card-fuel-gasolio { border-left: 3px solid var(--blue); }
.card-fuel-gpl { border-left: 3px solid var(--amber); }
.card-fuel-metano { border-left: 3px solid var(--purple); }

/* ?? Chart ???????????????????????????????????????????????????????????????? */
.chart-wrapper {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 22px;
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(12px);
    position: relative;
    height: 340px;
}
.chart-legend {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-top: 14px;
    flex-wrap: wrap;
}
.chart-legend span {
    font-size: 0.78rem;
    color: var(--muted);
    display: flex;
    align-items: center;
    gap: 5px;
}

/* ?? Buttons ?????????????????????????????????????????????????????????????? */
.btn-group { display: flex; gap: 4px; }
.btn-sm {
    padding: 5px 14px;
    font-size: 0.78rem;
    border: 1px solid var(--line);
    background: var(--card);
    color: var(--muted);
    border-radius: var(--radius-xs);
    cursor: pointer;
    font-weight: 500;
    transition: all 0.15s;
    font-family: var(--font);
}
.btn-sm:hover { background: var(--card-hover); color: var(--text); }
.btn-sm.active { background: var(--blue); color: #fff; border-color: var(--blue); }

/* ?? Tables ??????????????????????????????????????????????????????????????? */
.table-responsive { overflow-x: auto; }
.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    font-size: 0.88rem;
}
.data-table th {
    background: rgba(12, 27, 45, 0.95);
    padding: 11px 14px;
    text-align: left;
    font-weight: 600;
    font-size: 0.72rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    cursor: pointer;
    user-select: none;
    white-space: nowrap;
}
.data-table th:hover { color: var(--blue); }
.data-table td {
    padding: 11px 14px;
    border-top: 1px solid var(--line-light);
    font-family: var(--font-mono);
    font-size: 0.85rem;
}
.data-table tbody tr { cursor: pointer; transition: background 0.1s; }
.data-table tbody tr:hover { background: var(--card-hover); }

.price-cell { font-weight: 600; }
.delta-cell { font-size: 0.78rem; font-weight: 600; }
.delta-cell.up { color: var(--red); }
.delta-cell.down { color: var(--green); }
.delta-cell.flat { color: var(--dim); }

/* ?? Map ?????????????????????????????????????????????????????????????????? */
.map-container {
    height: 450px;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);

/* Dark filter on map tiles to match BMW theme */
.map-container .leaflet-tile-pane {
    filter: brightness(0.6) invert(1) contrast(3) hue-rotate(200deg) saturate(0.3) brightness(0.7);
}
.map-container .leaflet-overlay-pane { filter: none; }

.map-controls {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
}
.search-box-inline { max-width: 280px; }
.search-box-inline input { padding: 7px 14px; font-size: 0.82rem; }

/* Leaflet popup */
.station-popup { font-family: var(--font); min-width: 200px; }
.station-popup h4 { font-size: 0.88rem; margin: 0 0 4px; color: #1a1d26; }
.station-popup .popup-addr { font-size: 0.73rem; color: #666; margin-bottom: 8px; }
.station-popup .popup-prices { display: flex; flex-wrap: wrap; gap: 6px; }
.station-popup .popup-fuel {
    background: #f0f2f8;
    border-radius: 8px;
    padding: 5px 9px;
    font-size: 0.76rem;
}
.station-popup .popup-fuel strong { font-size: 0.88rem; font-family: var(--font-mono); }
.station-popup .popup-vs { font-size: 0.68rem; margin-top: 1px; }
.station-popup .popup-vs .better { color: #10b981; }
.station-popup .popup-vs .worse { color: #ef4444; }
.station-popup .popup-actions { margin-top: 8px; }
.station-popup .popup-fav-btn {
    background: none;
    border: 1px solid #ddd;
    border-radius: 6px;
    padding: 4px 10px;
    cursor: pointer;
    font-size: 0.78rem;
    transition: all 0.15s;
}
.station-popup .popup-fav-btn:hover { background: #fef3c7; }

/* ?? Favorites ???????????????????????????????????????????????????????????? */
.fav-empty {
    background: var(--card);
    border: 2px dashed var(--line);
    border-radius: var(--radius);
    padding: 28px;
    text-align: center;
    color: var(--muted);
}

.fav-list { display: flex; flex-direction: column; gap: 12px; }

.fav-card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 18px;
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(12px);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.fav-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
}

.fav-card-info h4 { font-size: 0.92rem; font-weight: 700; margin-bottom: 2px; }
.fav-card-info .fav-address { font-size: 0.78rem; color: var(--muted); }
.fav-card-info .fav-badge {
    display: inline-block;
    font-size: 0.68rem;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 12px;
    margin-top: 6px;
}
.fav-badge.cheap { background: var(--green-bg); color: var(--green); border: 1px solid rgba(100,231,139,0.2); }
.fav-badge.expensive { background: var(--red-bg); color: var(--red); border: 1px solid rgba(255,107,107,0.2); }
.fav-badge.average { background: var(--blue-bg); color: var(--blue); border: 1px solid rgba(63,140,255,0.2); }

.fav-remove {
    background: none;
    border: none;
    color: var(--dim);
    cursor: pointer;
    font-size: 1.05rem;
    padding: 4px;
    border-radius: 6px;
    transition: color 0.15s, background 0.15s;
    flex-shrink: 0;
}
.fav-remove:hover { color: var(--red); background: var(--red-bg); }

.fav-prices {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 8px;
}

.fav-fuel {
    background: rgba(7, 17, 29, 0.6);
    border: 1px solid var(--line-light);
    border-radius: var(--radius-sm);
    padding: 10px;
}
.fav-fuel-label { font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); font-weight: 600; }
.fav-fuel-price { font-size: 1.15rem; font-weight: 700; font-family: var(--font-mono); margin: 3px 0; }
.fav-fuel-vs { font-size: 0.7rem; }
.fav-fuel-vs .better { color: var(--green); font-weight: 600; }
.fav-fuel-vs .worse { color: var(--red); font-weight: 600; }
.fav-fuel-vs .same { color: var(--dim); }

/* ?? Modal ???????????????????????????????????????????????????????????????? */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(6px);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal {
    background: var(--card-solid);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    width: 100%;
    max-width: 600px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 22px;
    border-bottom: 1px solid var(--line-light);
}
.modal-header h3 { font-size: 1.02rem; font-weight: 700; }

.modal .search-box { padding: 14px 22px; max-width: none; }

.station-results {
    overflow-y: auto;
    max-height: 400px;
    padding: 0 10px 10px;
}

.station-result {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 14px;
    margin: 4px 0;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background 0.1s;
}
.station-result:hover { background: var(--card-hover); }

.station-result-info { flex: 1; }
.station-result-name { font-weight: 600; font-size: 0.88rem; }
.station-result-addr { font-size: 0.75rem; color: var(--muted); }
.station-result-price { text-align: right; font-size: 0.82rem; font-weight: 600; color: var(--blue); font-family: var(--font-mono); }

.station-result .star-btn {
    background: none;
    border: none;
    font-size: 1.3rem;
    cursor: pointer;
    padding: 4px;
    transition: transform 0.15s;
}
.station-result .star-btn:hover { transform: scale(1.2); }

/* ?? Search ??????????????????????????????????????????????????????????????? */
.search-box { position: relative; max-width: 500px; }
.search-box input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    background: rgba(7, 17, 29, 0.7);
    color: var(--text);
    outline: none;
    transition: border-color 0.2s;
    font-family: var(--font);
}
.search-box input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(63, 140, 255, 0.15); }
.search-box input::placeholder { color: var(--dim); }

.search-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--card-solid);
    border: 1px solid var(--line);
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
    box-shadow: var(--shadow);
    display: none;
    z-index: 50;
    max-height: 300px;
    overflow-y: auto;
}
.search-dropdown.open { display: block; }
.search-item {
    padding: 10px 16px;
    cursor: pointer;
    font-size: 0.88rem;
    transition: background 0.1s;
    display: flex;
    justify-content: space-between;
}
.search-item:hover, .search-item.active { background: var(--card-hover); }
.search-item .prov { color: var(--dim); font-size: 0.78rem; }

/* ?? Comune detail ???????????????????????????????????????????????????????? */
.comune-detail {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 22px;
    margin-top: 16px;
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(12px);
}
.comune-detail h3 { font-size: 1.08rem; margin-bottom: 14px; }
.comune-detail h3 small { color: var(--muted); }
.comune-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 10px;
}
.comune-fuel-card {
    background: rgba(7, 17, 29, 0.6);
    border: 1px solid var(--line-light);
    border-radius: var(--radius-sm);
    padding: 14px;
}
.comune-fuel-label { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); font-weight: 600; }
.comune-fuel-price { font-size: 1.4rem; font-weight: 700; font-family: var(--font-mono); margin: 4px 0; }
.comune-fuel-vs { font-size: 0.75rem; color: var(--dim); }
.comune-fuel-vs .better { color: var(--green); font-weight: 600; }
.comune-fuel-vs .worse { color: var(--red); font-weight: 600; }

/* ?? Footer ??????????????????????????????????????????????????????????????? */
.footer {
    margin-top: 48px;
    padding: 28px 0;
    border-top: 1px solid var(--line-light);
    text-align: center;
    color: var(--dim);
    font-size: 0.8rem;
}
.footer a { color: var(--blue); text-decoration: none; }
.footer a:hover { text-decoration: underline; }

/* ?? Responsive ??????????????????????????????????????????????????????????? */
@media (max-width: 768px) {
    .header h1 { font-size: 1.2rem; }
    .cards-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .card { padding: 16px; border-radius: 16px; }
    .card-price { font-size: 1.6rem; }
    .chart-wrapper { height: 260px; padding: 14px; }
    .map-container { height: 350px; }
    .map-controls { flex-direction: column; align-items: stretch; }
    .stats-banner { flex-direction: column; gap: 4px; }
}

@media (max-width: 480px) {
    .cards-grid { grid-template-columns: 1fr 1fr; }
    .card { padding: 14px; }
    .card-price { font-size: 1.35rem; }
    .data-table { font-size: 0.78rem; }
    .data-table th, .data-table td { padding: 9px 10px; }
}