:root {
    --bg-color: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --accent-color: #38bdf8;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --glass-border: rgba(255, 255, 255, 0.1);
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    background-image: 
        radial-gradient(at 0% 0%, rgba(56, 189, 248, 0.1) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(139, 92, 246, 0.1) 0px, transparent 50%);
    color: var(--text-primary);
    min-height: 100vh;
    padding: 2rem;
}

header {
    max-width: 1200px;
    margin: 0 auto 3rem auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

h1 {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(to right, #f8fafc, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.search-container {
    background: var(--card-bg);
    padding: 1rem 1.5rem;
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(12px);
    display: flex;
    gap: 1rem;
    align-items: center;
}

.search-container select, .search-container button {
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s;
}

.search-container select:hover, .search-container button:hover {
    border-color: var(--accent-color);
}

.search-container button.active {
    background: var(--accent-color);
    color: var(--bg-color);
    font-weight: 600;
}

.main-content {
    max-width: 1200px;
    margin: 0 auto;
}

/* Monthly View Styles */
.monthly-view {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.paysheet-card-large {
    width: 100%;
    max-width: 600px;
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    overflow: hidden;
    backdrop-filter: blur(16px);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    transition: transform 0.3s ease;
}

.paysheet-card-large:hover {
    transform: scale(1.01);
}

.paysheet-card-large img {
    width: 100%;
    height: auto;
    display: block;
}

.paysheet-stats {
    padding: 2rem;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    background: rgba(15, 23, 42, 0.4);
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.25rem;
}

.stat-value {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--accent-color);
}

/* Annual View Styles */
.annual-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.annual-summary-card {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.1), rgba(139, 92, 246, 0.1));
    border: 1px solid var(--accent-color);
    padding: 2rem;
    border-radius: 20px;
    display: flex;
    justify-content: space-around;
    align-items: center;
    margin-bottom: 2rem;
    backdrop-filter: blur(10px);
}

.summary-stat {
    text-align: center;
}

.summary-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.month-mini-card {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.5rem;
    transition: all 0.3s;
    cursor: pointer;
}

.month-mini-card:hover {
    border-color: var(--accent-color);
    background: rgba(56, 189, 248, 0.05);
}

.month-name {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

/* Mobile View Adjustments */
@media (max-width: 768px) {
    body {
        padding: 1rem;
    }

    header {
        flex-direction: column;
        align-items: flex-start;
    }

    .search-container {
        width: 100%;
        flex-direction: column;
        align-items: stretch;
    }

    .annual-summary-card {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }

    .summary-value {
        font-size: 1.75rem;
    }

    .stat-value {
        font-size: 1rem;
    }
}