:root {
    --primary: #22C55E;
    --primary-light: #4ADE80;
    --primary-dark: #16A34A;
    --primary-gradient: linear-gradient(135deg, #22C55E 0%, #16A34A 100%);
    --accent: #1D4ED8;
    --bg: #FFFFFF;
    --card-bg: #FFFFFF;
    --text: #0A0A0A;
    --text-muted: #64748b;
    --border: #E5E7EB;
    --success: #22C55E;
}

* {
    -webkit-tap-highlight-color: transparent;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg);
    color: var(--text);
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    user-select: none;
}

.app-container {
    max-width: 500px;
    margin: 0 auto;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    background: var(--bg);
}

.view-content {
    flex: 1;
    padding: 16px;
    padding-bottom: 90px; /* Space for bottom nav */
    padding-top: 70px; /* Space for header */
}

/* App Header */
.app-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    max-width: 500px;
    margin: 0 auto;
    height: 60px;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    border-bottom: 1px solid var(--border);
    z-index: 100;
}

/* Bottom Navigation */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    max-width: 500px;
    margin: 0 auto;
    height: 75px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(15px);
    display: flex;
    justify-content: space-around;
    align-items: center;
    border-top: 1px solid var(--border);
    padding-bottom: env(safe-area-inset-bottom);
    z-index: 100;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--text-muted);
    font-size: 11px;
    font-weight: 500;
    text-decoration: none;
    transition: color 0.2s;
    width: 25%;
}

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

.nav-item i {
    font-size: 24px;
    margin-bottom: 4px;
}

/* Cards */
.card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 16px;
    margin-bottom: 16px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

/* Forms */
.input-group {
    margin-bottom: 16px;
}

label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-muted);
}

input, select, textarea {
    width: 100%;
    padding: 12px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: #fff;
    font-size: 16px;
}

input:focus {
    outline: none;
    border-color: var(--primary);
}

.btn {
    width: 100%;
    padding: 14px;
    border-radius: 12px;
    border: none;
    font-weight: 700;
    font-size: 16px;
    cursor: pointer;
    transition: transform 0.1s;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 4px 12px rgba(34, 197, 94, 0.3);
}

.bg-gradient-primary {
    background: var(--primary-gradient);
}

/* Animations */
.fade-in {
    animation: fadeIn 0.3s ease-in-out;
}

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

/* Hide elements */
.hidden {
    display: none !important;
}

/* Specific UI Elements */
.badge {
    padding: 4px 8px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
}

.badge-warning { background: #fef3c7; color: #92400e; }
.badge-danger { background: #fee2e2; color: #b91c1c; }
.badge-success { background: #dcfce7; color: #15803d; }