/* ============================================
   Zeiterfassung - Main Stylesheet
   ============================================ */

/* ============ CSS VARIABLES ============ */
:root {
    /* Colors */
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-primary-light: #3b82f6;

    --color-success: #10b981;
    --color-success-light: #d1fae5;
    --color-warning: #f59e0b;
    --color-warning-light: #fef3c7;
    --color-danger: #ef4444;
    --color-danger-light: #fee2e2;
    --color-info: #3b82f6;
    --color-info-light: #dbeafe;

    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-text-muted: #9ca3af;

    --color-bg: #f9fafb;
    --color-bg-white: #ffffff;
    --color-bg-dark: #111827;

    --color-border: #e5e7eb;
    --color-border-dark: #d1d5db;

    /* Typography - Google Fonts Inter */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 200ms ease;
}

/* ============ RESET ============ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: var(--color-primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

img {
    max-width: 100%;
    height: auto;
}

/* ============ TYPOGRAPHY ============ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }

p { margin-bottom: var(--spacing-md); }

.text-muted { color: var(--color-text-muted); }
.text-light { color: var(--color-text-light); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-danger { color: var(--color-danger); }
.text-center { text-align: center; }
.text-right { text-align: right; }

/* ============ LAYOUT ============ */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.main-content {
    flex: 1;
    padding: var(--spacing-xl) var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.main-content.full-width {
    max-width: none;
}

/* ============ NAVBAR ============ */
.navbar {
    background: var(--color-bg-white);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    font-size: var(--font-size-lg);
    color: var(--color-text);
    text-decoration: none;
}

.brand-icon {
    width: 32px;
    height: 32px;
    background: var(--color-primary);
    color: white;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition-fast);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-links a {
    color: var(--color-text-light);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    text-decoration: none;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--color-primary);
    background: var(--color-info-light);
}

.nav-user {
    position: relative;
}

.user-menu-toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.user-menu-toggle:hover {
    background: var(--color-bg);
}

.user-avatar {
    width: 36px;
    height: 36px;
    background: var(--color-primary);
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.user-dropdown {
    position: absolute;
    right: 0;
    top: 100%;
    padding-top: var(--spacing-sm);
    background: transparent;
    min-width: 200px;
    display: none;
    z-index: 50;
}

.user-dropdown::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: var(--spacing-sm);
}

.user-dropdown-inner {
    background: var(--color-bg-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.nav-user:hover .user-dropdown {
    display: block;
}

.user-dropdown-inner .dropdown-header {
    padding: var(--spacing-md);
}

.dropdown-header strong {
    display: block;
}

.user-role {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.dropdown-divider {
    height: 1px;
    background: var(--color-border);
    margin: var(--spacing-xs) 0;
}

.user-dropdown-inner a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text);
    text-decoration: none;
}

.user-dropdown-inner a:hover {
    background: var(--color-bg);
}

.logout-link {
    color: var(--color-danger) !important;
}

/* ============ FOOTER ============ */
.footer {
    background: var(--color-bg-white);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-lg);
    margin-top: auto;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-links a {
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
}

.footer-copy {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

/* ============ BUTTONS ============ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 500;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: var(--transition-fast);
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-dark);
}

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

.btn-secondary:hover:not(:disabled) {
    background: var(--color-border);
}

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

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

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm);
}

.btn-block {
    width: 100%;
}

/* ============ FORMS ============ */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-base);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg-white);
    transition: var(--transition-fast);
}

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

.form-input.error,
.form-select.error {
    border-color: var(--color-danger);
}

.form-error {
    color: var(--color-danger);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
}

.form-hint {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
}

/* ============ CARDS ============ */
.card {
    background: var(--color-bg-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

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

.card-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin: 0;
}

/* ============ ALERTS ============ */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.alert-success {
    background: var(--color-success-light);
    color: #065f46;
}

.alert-warning {
    background: var(--color-warning-light);
    color: #92400e;
}

.alert-danger {
    background: var(--color-danger-light);
    color: #991b1b;
}

.alert-info {
    background: var(--color-info-light);
    color: #1e40af;
}

.alert-close {
    background: none;
    border: none;
    font-size: var(--font-size-xl);
    cursor: pointer;
    opacity: 0.5;
}

.alert-close:hover {
    opacity: 1;
}

/* ============ TABLES ============ */
.table-container {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.table th {
    font-weight: 600;
    background: var(--color-bg);
}

.table tbody tr:hover {
    background: var(--color-bg);
}

/* ============ BADGES ============ */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
    font-weight: 500;
    border-radius: var(--radius-full);
}

.badge-success {
    background: var(--color-success-light);
    color: #065f46;
}

.badge-warning {
    background: var(--color-warning-light);
    color: #92400e;
}

.badge-danger {
    background: var(--color-danger-light);
    color: #991b1b;
}

.badge-info {
    background: var(--color-info-light);
    color: #1e40af;
}

/* ============ CLOCK BUTTON ============ */
.clock-button {
    width: 180px;
    height: 180px;
    border-radius: var(--radius-full);
    border: none;
    font-size: var(--font-size-xl);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    box-shadow: var(--shadow-lg);
}

.clock-button.clock-in {
    background: var(--color-success);
    color: white;
}

.clock-button.clock-in:hover {
    transform: scale(1.05);
    box-shadow: 0 0 0 8px rgb(16 185 129 / 0.2);
}

.clock-button.clock-out {
    background: var(--color-danger);
    color: white;
}

.clock-button.clock-out:hover {
    transform: scale(1.05);
    box-shadow: 0 0 0 8px rgb(239 68 68 / 0.2);
}

.clock-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

.clock-time {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

/* ============ STATS GRID ============ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: var(--color-bg-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xs);
}

.stat-value {
    font-size: var(--font-size-2xl);
    font-weight: 600;
}

.stat-value.positive {
    color: var(--color-success);
}

.stat-value.negative {
    color: var(--color-danger);
}

.stat-sub {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-top: var(--spacing-xs);
}

/* ============ PROGRESS BAR ============ */
.progress {
    height: 8px;
    background: var(--color-bg);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: var(--color-primary);
    border-radius: var(--radius-full);
    transition: width var(--transition-normal);
}

.progress-bar.success {
    background: var(--color-success);
}

/* ============ DASHBOARD ============ */
.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.clock-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-2xl);
}

.today-info {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.today-date {
    font-size: var(--font-size-lg);
    color: var(--color-text-light);
}

.today-status {
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
}

/* ============ AUTH PAGES ============ */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
}

.auth-container {
    width: 100%;
    max-width: 420px;
    padding: var(--spacing-lg);
}

.auth-card {
    background: var(--color-bg-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
}

.auth-logo {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.auth-logo .brand-icon {
    width: 48px;
    height: 48px;
    font-size: var(--font-size-xl);
    margin: 0 auto var(--spacing-md);
}

.auth-title {
    font-size: var(--font-size-2xl);
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.auth-subtitle {
    text-align: center;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
}

.auth-footer {
    text-align: center;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    color: var(--color-text-light);
}

/* ============ LANDING PAGE (Split Screen) ============ */
.landing-page {
    background: var(--color-bg);
}

.landing-container {
    display: grid;
    grid-template-columns: 65% 35%;
    min-height: 100vh;
}

.landing-info {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    padding: var(--spacing-2xl);
    display: flex;
    flex-direction: column;
}

.landing-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-2xl);
}

.landing-brand .brand-icon {
    background: rgba(255,255,255,0.2);
}

.landing-info h1 {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.landing-subtitle {
    font-size: var(--font-size-lg);
    opacity: 0.9;
    margin-bottom: var(--spacing-2xl);
}

/* Pricing Table */
.pricing-table {
    background: rgba(255,255,255,0.1);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.pricing-table table {
    width: 100%;
    border-collapse: collapse;
}

.pricing-table th,
.pricing-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.pricing-table th {
    font-weight: 600;
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.8;
}

.pricing-table td:last-child {
    text-align: center;
    color: #4ade80;
    font-weight: 600;
}

.pricing-table tfoot td {
    border-bottom: none;
    padding-top: var(--spacing-md);
    font-size: var(--font-size-lg);
}

.pricing-table tfoot td:last-child {
    color: white;
    font-size: var(--font-size-xl);
}

.pricing-note {
    text-align: center;
    font-size: var(--font-size-sm);
    opacity: 0.8;
    margin-top: var(--spacing-md);
    margin-bottom: 0;
}

.landing-links {
    margin-top: auto;
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.landing-links a {
    color: rgba(255,255,255,0.7);
    font-size: var(--font-size-sm);
    text-decoration: none;
}

.landing-links a:hover {
    color: white;
}

/* Login Side */
.landing-login {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
}

.login-card {
    width: 100%;
    max-width: 380px;
}

.login-card h2 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.login-divider {
    display: flex;
    align-items: center;
    margin: var(--spacing-lg) 0;
}

.login-divider::before,
.login-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--color-border);
}

.login-divider span {
    padding: 0 var(--spacing-md);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.login-footer {
    text-align: center;
    margin-top: var(--spacing-lg);
}

.login-footer a {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.login-subtitle {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
}

/* Register Card - wider */
.register-card {
    max-width: 480px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-hint-small {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin: calc(-1 * var(--spacing-sm)) 0 var(--spacing-md) 0;
}

.checkbox-group {
    margin: var(--spacing-md) 0;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.checkbox-label input[type="checkbox"] {
    margin-top: 2px;
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.checkbox-label a {
    color: var(--color-primary);
}

/* Benefits List (Register Page) */
.benefits-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.benefit-check {
    width: 24px;
    height: 24px;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    flex-shrink: 0;
    color: #4ade80;
}

.benefit-item strong {
    display: block;
    margin-bottom: 2px;
}

.benefit-item p {
    font-size: var(--font-size-sm);
    opacity: 0.8;
    margin: 0;
}

/* Price Highlight */
.price-highlight {
    background: rgba(255,255,255,0.15);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.price-amount {
    font-size: var(--font-size-4xl);
    font-weight: 700;
}

.price-period {
    font-size: var(--font-size-lg);
    opacity: 0.8;
}

/* Mobile Landing */
@media (max-width: 900px) {
    .landing-container {
        grid-template-columns: 1fr;
    }

    .landing-info {
        padding: var(--spacing-xl);
        order: 2;
    }

    .landing-login {
        padding: var(--spacing-xl);
        order: 1;
    }

    .landing-info h1,
    .landing-info h2 {
        font-size: var(--font-size-2xl);
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .register-card {
        max-width: 100%;
    }
}

/* ============ MODAL ============ */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--color-bg-white);
    border-radius: var(--radius-xl);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: var(--transition-normal);
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.modal-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: var(--font-size-xl);
    cursor: pointer;
    color: var(--color-text-muted);
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--color-bg-white);
        flex-direction: column;
        padding: var(--spacing-lg);
        transform: translateX(-100%);
        transition: var(--transition-normal);
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-links {
        flex-direction: column;
    }

    .nav-user {
        margin-top: auto;
        padding-top: var(--spacing-lg);
        border-top: 1px solid var(--color-border);
    }

    .user-dropdown {
        position: static;
        padding-top: 0;
        display: block;
    }

    .user-dropdown-inner {
        box-shadow: none;
        border: none;
        background: transparent;
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }

    .landing-hero h1 {
        font-size: var(--font-size-2xl);
    }

    .landing-cta {
        flex-direction: column;
    }

    .footer-container {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .clock-button {
        width: 150px;
        height: 150px;
    }
}

/* ============ LOADING ============ */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.btn .loading {
    border-color: rgba(255,255,255,0.3);
    border-top-color: white;
}

/* ============ UTILITIES ============ */
.hidden { display: none !important; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.p-1 { padding: var(--spacing-sm); }
.p-2 { padding: var(--spacing-md); }
.p-3 { padding: var(--spacing-lg); }

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-1 { gap: var(--spacing-sm); }
.gap-2 { gap: var(--spacing-md); }
.gap-3 { gap: var(--spacing-lg); }