:root {
    --primary-color: #3b82f6;
    --primary-light: #60a5fa;
    --primary-dark: #1d4ed8;
    --secondary-color: #10b981;
    --bg-color: #0f172a;
    --surface-color: rgba(30, 41, 59, 0.65);
    --surface-border: rgba(255, 255, 255, 0.1);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --border-radius-lg: 20px;
    --border-radius-md: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', system-ui, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Background */
.background-elements { position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; z-index: -1; overflow: hidden; pointer-events: none; }
.blob { position: absolute; filter: blur(100px); opacity: 0.4; animation: float 20s infinite alternate ease-in-out; border-radius: 50%; }
.blob-1 { top: -20%; left: -10%; width: 60vw; height: 60vw; background: radial-gradient(circle, rgba(59,130,246,0.5) 0%, transparent 70%); }
.blob-2 { bottom: -30%; right: -20%; width: 70vw; height: 70vw; background: radial-gradient(circle, rgba(16,185,129,0.3) 0%, transparent 70%); animation-delay: -5s; }
.blob-3 { top: 30%; left: 40%; width: 45vw; height: 45vw; background: radial-gradient(circle, rgba(139,92,246,0.3) 0%, transparent 70%); animation-delay: -10s; }

@keyframes float {
    0% { transform: translate(0,0) scale(1); }
    50% { transform: translate(50px,-50px) scale(1.1); }
    100% { transform: translate(-30px,30px) scale(0.9); }
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; width: 100%; }

/* Hero */
.hero { padding: 80px 0 50px; text-align: center; }

.hero h1 {
    font-size: clamp(2.2rem, 5vw, 3.8rem);
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.03em;
    line-height: 1.1;
}
.hero h1 span {
    background: linear-gradient(135deg, var(--primary-light), var(--secondary-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-muted);
    margin-bottom: 3rem;
    font-weight: 300;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
}

/* Search Panel */
.search-glass-panel {
    background: var(--surface-color);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--surface-border);
    border-radius: var(--border-radius-lg);
    padding: 28px;
    box-shadow: 0 25px 50px -12px rgba(0,0,0,0.5);
    max-width: 960px;
    margin: 0 auto;
    position: relative;
}
.search-glass-panel::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
}

.search-controls { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 20px; align-items: end; }

.input-group { display: flex; flex-direction: column; text-align: left; }
.input-group label {
    font-size: 0.8rem; font-weight: 600; margin-bottom: 8px;
    color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em;
}

.input-group input, .input-group select {
    width: 100%; padding: 14px 18px;
    background: rgba(15,23,42,0.7);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--border-radius-md);
    color: var(--text-main); font-size: 1rem; font-family: inherit;
    transition: var(--transition); outline: none; appearance: none;
}
.input-group select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2394a3b8'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    background-size: 18px;
    padding-right: 44px;
}
.input-group input:focus, .input-group select:focus {
    border-color: var(--primary-light);
    box-shadow: 0 0 0 4px rgba(96,165,250,0.15);
    background: rgba(15,23,42,0.9);
}
.input-group input::placeholder { color: rgba(148,163,184,0.5); }

.search-with-btn { position: relative; display: flex; align-items: center; }
.search-with-btn input { padding-right: 50px; }
.btn-icon {
    position: absolute; right: 8px;
    background: rgba(59,130,246,0.15); border: none;
    color: var(--primary-light);
    width: 34px; height: 34px; border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; transition: var(--transition);
}
.btn-icon:hover { background: rgba(59,130,246,0.3); color: #fff; }

/* Results */
main { flex: 1; }

.results-header {
    display: flex; justify-content: space-between; align-items: center;
    margin: 20px 0 28px;
    border-bottom: 1px solid var(--surface-border);
    padding-bottom: 18px;
}
.results-header h2 { font-size: 1.4rem; font-weight: 500; }

.sort-options { display: flex; gap: 10px; }
.btn-sort {
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--surface-border);
    color: var(--text-muted);
    padding: 8px 18px; border-radius: 30px;
    cursor: pointer; font-size: 0.85rem; font-weight: 500;
    transition: var(--transition);
}
.btn-sort:hover { background: rgba(255,255,255,0.08); color: var(--text-main); }
.btn-sort.active { background: rgba(59,130,246,0.15); border-color: rgba(59,130,246,0.5); color: #93c5fd; }

/* Grid */
.stations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
    margin-bottom: 40px;
}

/* Station Card */
.station-card {
    background: var(--surface-color);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--surface-border);
    border-radius: var(--border-radius-lg);
    padding: 24px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    animation: fadeIn 0.4s ease-out both;
}
.station-card::before {
    content: ''; position: absolute; top: 0; left: 0;
    width: 100%; height: 3px;
    background: linear-gradient(90deg, var(--primary-light), var(--secondary-color));
    opacity: 0; transform: scaleX(0); transform-origin: left;
    transition: var(--transition);
}
.station-card:hover { transform: translateY(-6px); box-shadow: 0 18px 35px -8px rgba(0,0,0,0.4); border-color: rgba(255,255,255,0.18); }
.station-card:hover::before { opacity: 1; transform: scaleX(1); }

.card-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 16px; }
.brand-badge {
    background: rgba(59,130,246,0.12);
    padding: 4px 12px; border-radius: 20px;
    font-size: 0.7rem; font-weight: 700; letter-spacing: 0.08em;
    text-transform: uppercase; color: #93c5fd;
    border: 1px solid rgba(59,130,246,0.2);
}
.open-badge {
    font-size: 0.7rem; font-weight: 600;
    padding: 4px 10px; border-radius: 20px;
}
.open-badge.open { color: #6ee7b7; background: rgba(16,185,129,0.1); border: 1px solid rgba(16,185,129,0.25); }
.open-badge.closed { color: #fca5a5; background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.2); }

.station-name { font-size: 1.2rem; font-weight: 600; margin-bottom: 8px; color: var(--text-main); line-height: 1.3; }

.station-address {
    font-size: 0.9rem; color: var(--text-muted);
    display: flex; align-items: flex-start; gap: 8px; margin-bottom: 20px;
}
.station-address svg { flex-shrink: 0; width: 16px; height: 16px; margin-top: 3px; color: var(--primary-light); }

.card-footer {
    margin-top: auto; padding-top: 18px;
    border-top: 1px solid rgba(255,255,255,0.06);
    display: flex; gap: 10px;
}

.btn-live-price {
    flex: 1;
    background: linear-gradient(135deg, rgba(59,130,246,0.2), rgba(16,185,129,0.15));
    border: 1px solid rgba(59,130,246,0.3);
    color: var(--primary-light);
    padding: 11px 14px; border-radius: var(--border-radius-md);
    cursor: pointer; font-size: 0.85rem; font-weight: 600;
    font-family: inherit;
    text-decoration: none;
    transition: var(--transition);
    display: flex; align-items: center; justify-content: center; gap: 7px;
}
.btn-live-price:hover {
    background: linear-gradient(135deg, rgba(59,130,246,0.35), rgba(16,185,129,0.25));
    border-color: rgba(59,130,246,0.6);
    color: #fff;
    transform: translateY(-1px);
}

/* Detail page link button */
.btn-detail {
    display: flex; align-items: center; justify-content: center; gap: 6px;
    padding: 11px 14px; border-radius: var(--border-radius-md);
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--text-muted); font-size: 0.85rem; font-weight: 500;
    text-decoration: none; white-space: nowrap;
    transition: var(--transition);
}
.btn-detail:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.25);
    color: var(--text-main);
    transform: translateY(-1px);
}

/* Pagination */
.pagination { display: flex; justify-content: center; align-items: center; gap: 8px; margin-bottom: 64px; flex-wrap: wrap; }
.page-btn {
    background: var(--surface-color); border: 1px solid var(--surface-border);
    color: var(--text-muted); width: 40px; height: 40px; border-radius: 10px;
    cursor: pointer; font-size: 0.9rem; transition: var(--transition); font-family: inherit;
}
.page-btn:hover { background: rgba(255,255,255,0.08); color: var(--text-main); }
.page-btn.active { background: rgba(59,130,246,0.2); border-color: rgba(59,130,246,0.5); color: #93c5fd; font-weight: 700; }
.page-btn:disabled { opacity: 0.3; cursor: not-allowed; }

/* Modal */
.modal-backdrop {
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.7); backdrop-filter: blur(8px);
    z-index: 100; display: flex; align-items: center; justify-content: center;
    padding: 20px;
}
.modal-box {
    background: #1e293b;
    border: 1px solid var(--surface-border);
    border-radius: var(--border-radius-lg);
    padding: 36px; max-width: 480px; width: 100%;
    position: relative;
    box-shadow: 0 40px 80px -20px rgba(0,0,0,0.8);
    animation: fadeIn 0.25s ease-out;
}
.modal-close {
    position: absolute; top: 16px; right: 16px;
    background: rgba(255,255,255,0.05); border: none; color: var(--text-muted);
    width: 32px; height: 32px; border-radius: 8px; cursor: pointer;
    font-size: 0.9rem; transition: var(--transition);
}
.modal-close:hover { background: rgba(255,255,255,0.12); color: #fff; }
.modal-box h3 { font-size: 1.4rem; font-weight: 700; margin-bottom: 4px; }
.modal-subtitle { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 24px; }
.modal-price-list { display: flex; flex-direction: column; gap: 12px; margin-bottom: 20px; }
.modal-price-row {
    display: flex; justify-content: space-between; align-items: center;
    background: rgba(255,255,255,0.04); padding: 14px 18px; border-radius: var(--border-radius-md);
    border: 1px solid var(--surface-border);
}
.modal-fuel-label { font-weight: 500; }
.modal-price-val { font-size: 1.5rem; font-weight: 700; font-variant-numeric: tabular-nums; color: #6ee7b7; }
.modal-price-val span { font-size: 0.9rem; font-weight: 500; color: var(--text-muted); }
.modal-loading { text-align: center; padding: 24px 0; color: var(--text-muted); }
.modal-note { font-size: 0.78rem; color: rgba(148,163,184,0.5); text-align: center; }

/* Empty state */
.empty-state {
    text-align: center; padding: 60px 20px;
    background: rgba(255,255,255,0.02); border-radius: 20px;
    border: 1px dashed rgba(255,255,255,0.1);
    grid-column: 1 / -1;
}
.empty-state h3 { font-size: 1.2rem; margin-bottom: 8px; }
.empty-state p { color: var(--text-muted); }

/* Footer */
footer {
    border-top: 1px solid var(--surface-border);
    padding: 32px 0; text-align: center;
    color: var(--text-muted); font-size: 0.85rem;
    background: rgba(15,23,42,0.8);
}
footer a { color: var(--primary-light); text-decoration: none; }
footer a:hover { text-decoration: underline; }

@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
@keyframes spin { to { transform: rotate(360deg); } }

/* Responsive */
@media (max-width: 900px) {
    .search-controls { grid-template-columns: 1fr 1fr; }
    .search-controls .input-group:first-child { grid-column: 1 / -1; }
}
@media (max-width: 640px) {
    .hero { padding: 60px 0 36px; }
    .search-glass-panel { padding: 20px; }
    .search-controls { grid-template-columns: 1fr; }
    .results-header { flex-direction: column; align-items: flex-start; gap: 14px; }
    .sort-options { width: 100%; }
    .btn-sort { flex: 1; text-align: center; padding: 8px 8px; font-size: 0.78rem; }
    .stations-grid { grid-template-columns: 1fr; }
}