:root {
    --primary-color: #dc3545;
    --bg-color: #f5f5f5;
    --card-bg: #ffffff;
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-muted: #999999;
    --border-color: #e0e0e0;
    --top-bar-bg: #1a1a1a;
    --stat-card-bg: #f0f0f0;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    padding-bottom: 70px;
    -webkit-tap-highlight-color: transparent;
}

/* Typography */
.welcome-text { font-size: 16px; font-weight: 500; }
.user-details { font-size: 12px; color: var(--text-secondary); }
.stat-number { font-size: 24px; font-weight: 600; color: var(--text-primary); }
.stat-label { font-size: 11px; text-transform: uppercase; color: var(--text-secondary); }
.section-title { font-size: 14px; font-weight: 600; color: var(--text-primary); }
.card-title { font-size: 13px; font-weight: 500; }
.nav-label { font-size: 11px; }

/* Top Bar */
.top-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 50px;
    background-color: var(--top-bar-bg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    z-index: 1000;
    color: white;
}

.top-bar-right {
    display: flex;
    align-items: center;
}

.top-bar .time {
    font-size: 16px;
}

/* Welcome Card */
.welcome-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 20px;
    margin: 70px 12px 12px 12px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

/* Statistics */
.stats-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin: 0 12px;
}

.stat-card {
    background-color: var(--stat-card-bg);
    padding: 15px;
    text-align: center;
}

/* Section Header */
.section-header {
    margin: 20px 12px 10px 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-header i {
    color: var(--primary-color);
}

/* Quick Action Grid */
.quick-actions-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin: 0 12px;
}

.action-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 20px 10px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: inherit;
}

.icon-container {
    width: 50px;
    height: 50px;
    background-color: rgba(220, 53, 69, 0.1);
    border-radius: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--primary-color);
    font-size: 20px;
}

/* Bottom Navigation */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 65px;
    background-color: #ffffff;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-around;
    align-items: center;
    z-index: 1000;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: var(--text-muted);
    flex: 1;
}

.nav-item i {
    font-size: 20px;
    margin-bottom: 4px;
}

.nav-item.active {
    color: var(--primary-color);
}

.home-btn-container {
    position: relative;
    flex: 1;
    display: flex;
    justify-content: center;
}

.home-btn {
    width: 55px;
    height: 55px;
    background-color: #333333;
    border-radius: 50%;
    margin-top: -25px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-size: 20px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
    border: none;
    transition: background-color 0.2s;
}

.home-btn.active {
    background-color: var(--primary-color);
}

/* Footer */
footer {
    text-align: center;
    padding: 20px;
    font-size: 11px;
    color: var(--text-muted);
}