:root {
    --primary-color: #e63946; /* Đỏ thương hiệu */
    --secondary-color: #1d3557; /* Xanh đậm chuyên nghiệp */
    --accent-color: #f1faee;
    --text-dark: #333;
    --text-light: #f8f9fa;
    --success: #2a9d8f;
    --error: #e76f51;
    --shadow: 0 4px 6px rgba(0,0,0,0.1);
}

body {
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    line-height: 1.6;
    background-color: #fcfcfc;
    color: var(--text-dark);
}

/* Header & Navigation */
header {
    background: #000; /* Màu đen sang trọng cho Sushi Bar */
    color: #fff;
    padding: 2rem 1rem;
    text-align: center;
    border-bottom: 4px solid var(--primary-color);
}

header h1 {
    margin: 0;
    font-size: 1.8rem;
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* Container */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

main {
    padding-bottom: 50px;
}

/* Hero Section / Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-color);
    color: #fff;
    padding: 12px 25px;
    text-decoration: none;
    border-radius: 50px;
    margin: 10px 5px;
    font-weight: bold;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: var(--shadow);
    border: none;
    cursor: pointer;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.15);
}

.call-btn {
    background: var(--success);
}

/* Status Badges */
.status-badge {
    display: inline-block;
    padding: 8px 20px;
    border-radius: 20px;
    font-weight: bold;
    margin: 20px 0;
    font-size: 1.1rem;
}

.status-badge.open {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #10b981;
}

.status-badge.closed {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #ef4444;
}

/* Countdown Box */
.countdown-box {
    background: #fff;
    border: 1px solid #eee;
    padding: 15px;
    border-radius: 12px;
    margin: 15px 0;
    box-shadow: var(--shadow);
}

#countdown {
    font-family: monospace;
    color: var(--primary-color);
    font-size: 1.2rem;
    display: block;
    margin-top: 5px;
}

/* Opening Hours List */
.opening-hours {
    background: #fff;
    padding: 25px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    margin-top: 30px;
    text-align: left;
}

.opening-hours h2 {
    text-align: center;
    margin-top: 0;
    color: var(--secondary-color);
}

.opening-hours ul {
    list-style: none;
    padding: 0;
}

.opening-hours li {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid #f0f0f0;
}

.opening-hours li:last-child {
    border-bottom: none;
}

.opening-hours li.today {
    color: var(--primary-color);
    font-weight: bold;
    background: #fff5f5;
    margin: 0 -10px;
    padding: 10px;
    border-radius: 8px;
}

/* Footer */
footer {
    background: #1a1a1a;
    color: #999;
    text-align: center;
    padding: 30px 15px;
    margin-top: 40px;
    font-size: 0.9rem;
}

footer a {
    color: #ccc;
    text-decoration: none;
    margin: 0 10px;
}

footer a:hover {
    color: #fff;
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 600px) {
    header h1 { font-size: 1.4rem; }
    .btn { width: 90%; }
}