/* ============================================
   Modern Commute Log Website - CSS
   Color Scheme: Indigo (#6366f1) & Emerald (#10b981)
   ============================================ */

/* CSS Variables for Color Scheme */
:root {
    /* Primary Color - Indigo */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-darker: #4338ca;
    --primary-light: #818cf8;
    --primary-lighter: #a5b4fc;
    --primary-lightest: #c7d2fe;
    
    /* Secondary Color - Emerald */
    --secondary: #10b981;
    --secondary-dark: #059669;
    --secondary-darker: #047857;
    --secondary-light: #34d399;
    --secondary-lighter: #6ee7b7;
    --secondary-lightest: #a7f3d0;
    
    /* Neutral Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 200ms ease-in-out;
    --transition-slow: 300ms ease-in-out;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    padding: 0;
    margin: 0;
}

/* ============================================
   Navigation Bar - Modern & Responsive
   ============================================ */
.navbar {
    background: var(--bg-primary);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

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

.nav-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xs);
    align-items: center;
}

.nav-link {
    color: var(--text-primary);
    padding: var(--spacing-xs) var(--spacing-sm);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9375rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    position: relative;
    display: block;
}

.nav-link:hover {
    background-color: var(--primary-lightest);
    color: var(--primary-dark);
}

.nav-link:active {
    transform: scale(0.98);
}

/* Active link indicator */
.nav-link.active {
    color: var(--primary);
    background-color: var(--primary-lightest);
}

/* Hamburger Menu Button */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    flex-direction: column;
    gap: 4px;
    width: 40px;
    height: 40px;
    justify-content: center;
    align-items: center;
    border-radius: var(--radius-md);
    transition: background-color var(--transition-base);
}

.nav-toggle:hover {
    background-color: var(--bg-tertiary);
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Mobile Menu Styles */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 64px;
        flex-direction: column;
        background-color: var(--bg-primary);
        width: 100%;
        text-align: center;
        transition: left var(--transition-slow);
        box-shadow: var(--shadow-lg);
        padding: var(--spacing-md) 0;
        gap: 0;
        border-top: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-link {
        width: 100%;
        padding: var(--spacing-sm) var(--spacing-md);
        border-radius: 0;
    }
    
    .nav-link:hover {
        background-color: var(--bg-tertiary);
    }
}

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

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h2 {
    font-size: 2rem;
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: var(--primary-dark);
}

@media (max-width: 768px) {
    h2 {
        font-size: 1.75rem;
    }
}

/* ============================================
   Forms - Modern Styling
   ============================================ */
form {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    max-width: 600px;
    margin: 0 auto;
    width: 100%;
}

label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9375rem;
}

select,
input[type="text"],
input[type="password"],
input[type="date"],
input[type="number"] {
    width: 100%;
    padding: 0.75rem 1rem;
    margin-bottom: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: inherit;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: all var(--transition-base);
    -webkit-appearance: none;
    appearance: none;
}

select:focus,
input[type="text"]:focus,
input[type="password"]:focus,
input[type="date"]:focus,
input[type="number"]:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-lightest);
}

select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236366f1' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 12px;
    padding-right: 2.5rem;
}

/* Radio Buttons */
.timeOfDay {
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--bg-secondary);
    border-radius: var(--radius-md);
}

.timeOfDay p {
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--text-primary);
}

.radio-option {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.radio-option:last-child {
    margin-bottom: 0;
}

.timeOfDay input[type="radio"] {
    appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    margin-right: var(--spacing-xs);
    position: relative;
    cursor: pointer;
    transition: all var(--transition-base);
    flex-shrink: 0;
}

.timeOfDay input[type="radio"]:checked {
    border-color: var(--primary);
    background-color: var(--primary);
}

.timeOfDay input[type="radio"]:checked::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: white;
}

.timeOfDay input[type="radio"] + label {
    margin-left: 0;
    margin-bottom: 0;
    font-weight: 500;
    cursor: pointer;
}

/* Checkboxes */
input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--primary);
}

/* Buttons */
button {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 0.875rem 1.75rem;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
    font-family: inherit;
    display: inline-block;
    width: auto;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-darker) 100%);
}

button:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

button:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--primary-lightest);
}

/* Secondary/Danger Button */
button[type="button"][style*="background-color: #d32f2f"],
button.danger {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
}

button[type="button"][style*="background-color: #d32f2f"]:hover,
button.danger:hover {
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
}

/* ============================================
   Tables - Responsive Design
   ============================================ */
table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-lg) 0;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

thead {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: white;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

tbody tr {
    transition: background-color var(--transition-fast);
}

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

tbody tr:last-child td {
    border-bottom: none;
}

/* Hide mobile card elements on desktop */
tbody tr .card-header,
tbody tr .card-details {
    display: none;
}

/* Responsive Table - Mobile Card View */
@media (max-width: 768px) {
    table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    thead {
        display: none;
    }
    
    tbody {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    tbody tr {
        display: block;
        margin-bottom: 0;
        border: 1px solid var(--border-color);
        border-radius: var(--radius-lg);
        padding: 0;
        background: var(--bg-primary);
        box-shadow: var(--shadow-md);
        cursor: pointer;
        transition: all var(--transition-base);
        overflow: hidden;
    }
    
    tbody tr:hover {
        box-shadow: var(--shadow-lg);
        transform: translateY(-2px);
    }
    
    tbody tr.expanded {
        box-shadow: var(--shadow-xl);
    }
    
    /* Card Header - Always Visible */
    tbody tr .card-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
    }
    
    tbody tr .card-main-info {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-xs);
        flex: 1;
    }
    
    tbody tr .card-day-name {
        font-weight: 700;
        font-size: 1.125rem;
        color: var(--primary-dark);
        line-height: 1.2;
    }
    
    tbody tr .card-time-mode {
        display: flex;
        gap: var(--spacing-sm);
        align-items: center;
        flex-wrap: wrap;
    }
    
    tbody tr .card-time-badge {
        display: inline-flex;
        align-items: center;
        padding: 0.25rem 0.75rem;
        border-radius: var(--radius-sm);
        font-size: 0.875rem;
        font-weight: 600;
        text-transform: capitalize;
        background: var(--primary-lightest);
        color: var(--primary-dark);
    }
    
    tbody tr .card-mode-badge {
        display: inline-flex;
        align-items: center;
        padding: 0.25rem 0.75rem;
        border-radius: var(--radius-sm);
        font-size: 0.875rem;
        font-weight: 600;
        background: var(--secondary-lightest);
        color: var(--secondary-darker);
    }
    
    tbody tr .card-expand-icon {
        width: 24px;
        height: 24px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--text-secondary);
        transition: transform var(--transition-base);
        flex-shrink: 0;
    }
    
    tbody tr.expanded .card-expand-icon {
        transform: rotate(180deg);
    }
    
    tbody tr .card-expand-icon::after {
        content: '▼';
        font-size: 0.75rem;
    }
    
    /* Card Details - Hidden by Default */
    tbody tr .card-details {
        display: none;
        padding: 0 var(--spacing-md) var(--spacing-md) var(--spacing-md);
        border-top: 1px solid var(--border-color);
        margin-top: var(--spacing-xs);
        padding-top: var(--spacing-md);
    }
    
    tbody tr.expanded .card-details {
        display: block;
        animation: slideDown var(--transition-slow) ease-out;
    }
    
    tbody tr .card-detail-item {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: var(--spacing-xs) 0;
        border-bottom: 1px solid var(--bg-tertiary);
    }
    
    tbody tr .card-detail-item:last-child {
        border-bottom: none;
    }
    
    tbody tr .card-detail-label {
        font-weight: 600;
        color: var(--text-secondary);
        font-size: 0.875rem;
    }
    
    tbody tr .card-detail-value {
        color: var(--text-primary);
        font-weight: 500;
        text-align: right;
    }
    
    /* Hide all table cells - we'll use data attributes instead */
    tbody td {
        display: none;
    }
    
    /* Highlight styles for mobile */
    tbody tr.warning {
        border-left: 4px solid #ef4444;
    }
    
    tbody tr.info {
        border-left: 4px solid #3b82f6;
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        max-height: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        max-height: 500px;
        transform: translateY(0);
    }
}

/* ============================================
   Select Dropdowns
   ============================================ */
select {
    cursor: pointer;
}

/* ============================================
   Input Groups
   ============================================ */
.input-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.input-group label {
    flex: 1;
    min-width: 150px;
    margin-bottom: 0;
}

.input-group input[type="number"] {
    flex: 2;
    min-width: 120px;
    margin-bottom: 0;
}

.input-group input[type="checkbox"] {
    margin-left: auto;
}

@media (max-width: 768px) {
    .input-group {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .input-group label {
        width: 100%;
    }
    
    .input-group input[type="number"] {
        width: 100%;
    }
    
    .input-group input[type="checkbox"] {
        margin-left: 0;
    }
}

/* ============================================
   Cost Display
   ============================================ */
#totalCost {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-dark) 100%);
    color: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    text-align: center;
    margin: var(--spacing-lg) auto;
    max-width: 600px;
}

@media (max-width: 768px) {
    #totalCost {
        font-size: 1.25rem;
        padding: var(--spacing-md);
    }
}

/* ============================================
   Login Page
   ============================================ */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: var(--spacing-md);
}

.login-form {
    padding: var(--spacing-xl);
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 400px;
}

.login-form label {
    font-weight: 600;
    margin-top: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
}

.login-form input[type="text"],
.login-form input[type="password"] {
    width: 100%;
    padding: 0.875rem 1rem;
    margin-top: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.login-form input[type="text"]:focus,
.login-form input[type="password"]:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-lightest);
}

.login-form button {
    width: 100%;
    margin-top: var(--spacing-md);
    padding: 0.875rem;
    font-size: 1rem;
}

/* ============================================
   Feedback Messages
   ============================================ */
#feedback {
    margin: var(--spacing-md) auto;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    max-width: 600px;
    text-align: center;
    font-weight: 500;
}

#feedback.success {
    background-color: var(--secondary-lightest);
    color: var(--secondary-darker);
    border: 1px solid var(--secondary-light);
}

#feedback.error {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

/* ============================================
   Utility Classes
   ============================================ */
.text-center {
    text-align: center;
}

.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); }

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

form, table, .login-form {
    animation: fadeIn 0.4s ease-out;
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .navbar {
        display: none;
    }
    
    body {
        background: white;
    }
    
    table {
        box-shadow: none;
    }
}