@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

:root {
    /* Bảng màu Light Mode - Sống động & Tương phản cao */
    --bg-main: #f0f4f8; /* Xanh nhạt dịu mắt */
    --card-bg: #ffffff;
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --border-color: #cbd5e0;
    --accent: #3182ce;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.dark {
    /* Bảng màu Dark Mode - Sâu & Sắc nét */
    --bg-main: #0f172a;
    --card-bg: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --border-color: #334155;
    --accent: #60a5fa;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-size: 15px;
    line-height: 1.6;
    transition: background-color 0.4s cubic-bezier(0.4, 0, 0.2, 1), color 0.4s;
    -webkit-font-smoothing: antialiased;
}

/* Card Style - Giữ hiệu ứng cũ, tăng độ nổi khối */
.minimal-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.minimal-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

/* Typography */
h1, h2, h3 {
    letter-spacing: -0.03em;
    font-weight: 800;
}

.font-mono {
    font-family: 'JetBrains Mono', monospace !important;
}

/* Table Design - Tăng tương phản dòng */
.excel-table {
    border-collapse: separate;
    border-spacing: 0;
    width: 100%;
}

.excel-table th {
    background-color: rgba(49, 130, 206, 0.1); /* Nhấn bằng màu accent nhạt */
    color: var(--accent);
    font-weight: 800;
    text-transform: uppercase;
    font-size: 11px;
    padding: 14px 16px;
    border-bottom: 2px solid var(--accent);
    text-align: center;
}

.dark .excel-table th {
    background-color: rgba(96, 165, 250, 0.1);
}

.excel-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
}

/* States - Màu sắc rực rỡ, dễ nhận diện */
.cell-running {
    background-color: #fffbeb !important; /* Amber 50 */
    color: #b45309 !important; /* Amber 700 */
    font-weight: 800;
    border-left: 4px solid #f59e0b !important;
}

.dark .cell-running {
    background-color: #451a03 !important;
    color: #fbbf24 !important;
}

.cell-completed {
    background-color: #ecfdf5 !important; /* Emerald 50 */
    color: #047857 !important; /* Emerald 700 */
    font-weight: 600;
}

.dark .cell-completed {
    background-color: #064e3b !important;
    color: #34d399 !important;
}

.cell-waiting {
    color: var(--text-secondary);
    background-color: transparent;
}

.time-arrival-highlight {
    background-color: #f5f3ff !important; /* Violet 50 */
    color: #6d28d2 !important; /* Violet 700 */
    font-weight: 800;
}

.dark .time-arrival-highlight {
    background-color: #2e1065 !important;
    color: #a78bfa !important;
}

/* Gantt Chart - Giữ nguyên layout, làm đậm màu sắc */
.gantt-container {
    display: flex;
    overflow-x: auto;
    padding: 24px 0 48px 0;
    gap: 4px;
}

.gantt-block {
    border-radius: 8px;
    height: 54px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    color: white;
    position: relative;
    min-width: 60px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: transform 0.2s;
}

.gantt-block:hover {
    transform: scale(1.05);
    z-index: 10;
}

.gantt-label {
    position: absolute;
    bottom: -30px;
    left: 0;
    font-size: 12px;
    font-family: 'JetBrains Mono', monospace;
    font-weight: 700;
    color: var(--text-primary);
}

/* Stats Cards */
.stat-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 36px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--text-primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Input & Select - Thiết kế hiện đại hơn */
input, select {
    border: 2px solid var(--border-color) !important;
    background: var(--card-bg) !important;
    color: var(--text-primary) !important;
    border-radius: 10px !important;
    padding: 12px !important;
    font-weight: 600 !important;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

input:focus, select:focus {
    border-color: var(--accent) !important;
    box-shadow: 0 0 0 4px rgba(49, 130, 206, 0.2) !important;
    outline: none;
}

/* Buttons */
.theme-btn, .lang-btn {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    color: var(--text-primary);
    font-weight: 700;
    padding: 10px 18px;
    border-radius: 12px;
    transition: all 0.2s;
}

.theme-btn:hover, .lang-btn:hover {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

.lang-btn.active {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
    box-shadow: 0 4px 12px rgba(49, 130, 206, 0.3);
}

/* Animations */
.animate-row {
    animation: fadeInSlide 0.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes fadeInSlide {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-main);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 20px;
    border: 2px solid var(--bg-main);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}