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

:root {
    --primary: #dc2626;
    --primary-dark: #b91c1c;
    --primary-light: #f87171;
    --secondary: #f59e0b;
    --secondary-dark: #d97706;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --bg: #ffffff;
    --bg-secondary: #f8fafc;
    --text: #1e293b;
    --text-light: #64748b;
    --border: #e2e8f0;
    --shadow: rgba(0, 0, 0, 0.1);
    --spacing: 1rem;
    --radius: 0.75rem;
    --nav-height: 64px;
    --bottom-nav-height: 72px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-secondary);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

body:has(.app-container) {
    padding-bottom: var(--bottom-nav-height);
}

.app-container-login {
    min-height: 100vh;
}

.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.app-header {
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 1rem var(--spacing);
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 4px var(--shadow);
}

.app-header h1 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text);
    margin: 0;
}

.app-header img {
    height: 32px;
    width: auto;
    object-fit: contain;
    flex-shrink: 0;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.btn-logout {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem;
    color: var(--text-light);
    text-decoration: none;
    border-radius: 0.375rem;
    transition: all 0.2s;
    cursor: pointer;
}

.btn-logout:hover {
    background: var(--bg-secondary);
    color: var(--primary);
}

.user-name {
    font-size: 0.875rem;
    color: var(--text-light);
}

.badge {
    padding: 0.25rem 0.5rem;
    border-radius: 0.375rem;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge.admin {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
}

.app-main {
    flex: 1;
    padding: var(--spacing);
    padding-bottom: calc(var(--spacing) + var(--bottom-nav-height));
}

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

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border);
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text);
}

.card-subtitle {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-top: 0.25rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    touch-action: manipulation;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--secondary-dark) 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.3);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-block {
    width: 100%;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    min-height: 36px;
}

/* Forms */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text);
    font-size: 0.875rem;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.875rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 1rem;
    background: var(--bg);
    color: var(--text);
    min-height: 44px;
    -webkit-appearance: none;
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-error {
    color: var(--danger);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* Bottom Navigation */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg);
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-around;
    align-items: center;
    height: var(--bottom-nav-height);
    z-index: 1000;
    box-shadow: 0 -2px 8px var(--shadow);
    padding-bottom: env(safe-area-inset-bottom);
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: var(--text-light);
    font-size: 0.75rem;
    padding: 0.5rem;
    min-width: 60px;
    transition: color 0.2s;
    touch-action: manipulation;
}

.nav-item svg {
    margin-bottom: 0.25rem;
}

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

.nav-item span {
    font-size: 0.625rem;
}

/* Lists */
.list {
    list-style: none;
}

.list-item {
    padding: var(--spacing);
    border-bottom: 1px solid var(--border);
    background: var(--bg);
}

.list-item:last-child {
    border-bottom: none;
}

/* Status badges */
.status {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
}

.status.planned {
    background: #fef3c7;
    color: #92400e;
}

.status.booked {
    background: #dbeafe;
    color: #1e40af;
}

.status.paid {
    background: #d1fae5;
    color: #065f46;
}

/* Timeline */
.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0.5rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border);
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
    padding-left: 1.5rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -1.75rem;
    top: 0.25rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--primary);
    border: 2px solid var(--bg);
}

/* Filters */
.filter-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: var(--spacing);
}

.filter-chip {
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    background: var(--bg);
    border: 1px solid var(--border);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s;
    touch-action: manipulation;
}

.filter-chip.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* Empty state */
.empty-state {
    text-align: center;
    padding: 3rem var(--spacing);
    color: var(--text-light);
}

.empty-state svg {
    width: 64px;
    height: 64px;
    margin: 0 auto 1rem;
    opacity: 0.5;
}

/* Loading */
.loading {
    text-align: center;
    padding: 2rem;
    color: var(--text-light);
}

/* Responsive adjustments */
@media (max-width: 480px) {
    .app-main {
        padding: 0.75rem;
    }
    
    .card {
        padding: 0.75rem;
    }
}

/* Utility classes */
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-light); }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }