/* Main Styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fa;
    color: #333;
}

/* Card Styles */
.card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    margin-bottom: 20px;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.card-img-top {
    height: 200px;
    object-fit: cover;
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('/static/img/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    color: white;
    padding: 100px 0;
    margin-bottom: 40px;
}

/* Rating Stars */
.rating {
    color: #ffc107;
    font-size: 1.2rem;
}

.rating-form .star {
    cursor: pointer;
    font-size: 1.5rem;
}

.rating-form .star:hover,
.rating-form .star.active {
    color: #ffc107;
}

/* Sustainability Badge */
.sustainability-score {
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.score-1, .score-2 {
    color: #dc3545;
}

.score-3 {
    color: #fd7e14;
}

.score-4, .score-5 {
    color: #28a745;
}

/* Form Styles */
.form-container {
    background-color: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* Recommendation Results */
.recommendation-item {
    position: relative;
    margin-bottom: 20px;
}

.recommendation-item img {
    width: 100%;
    border-radius: 5px;
    transition: transform 0.3s ease;
}

.recommendation-item img:hover {
    transform: scale(1.05);
}

/* Dashboard */
.dashboard-stats {
    background-color: white;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
}

.stat-card {
    text-align: center;
    padding: 15px;
    border-radius: 5px;
    background-color: #f8f9fa;
}

.stat-card i {
    font-size: 2rem;
    margin-bottom: 10px;
}

/* Sustainability Page */
.sustainability-factor {
    background-color: white;
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.sustainability-factor h3 {
    color: #28a745;
    margin-bottom: 15px;
}

/* Dark Mode Auth Pages */
.auth-page {
    min-height: calc(100vh - 200px);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #121212;
    color: #f8f9fa;
}

.auth-container {
    background-color: #1e1e1e;
    color: #f8f9fa;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
    width: 100%;
    max-width: 400px;
    position: relative;
    overflow: hidden;
}

.auth-container::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.03), transparent);
    transform: rotate(45deg);
    animation: shimmer 3s infinite;
    z-index: 0;
    pointer-events: none;
}

@keyframes shimmer {
    0% {
        transform: translate(-50%, -50%) rotate(0deg);
    }
    100% {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

.auth-header {
    position: relative;
    text-align: center;
    margin-bottom: 15px;
    z-index: 1;
}

.auth-header h2 {
    font-size: 1.8rem;
    margin-bottom: 5px;
    font-weight: 700;
    background: linear-gradient(45deg, #6a11cb, #2575fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.auth-header p {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-bottom: 0;
}

.auth-header .auth-icon {
    font-size: 28px;
    margin-bottom: 5px;
    color: #6a11cb;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.8;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.auth-form {
    position: relative;
    z-index: 1;
}

.auth-input-group {
    position: relative;
    margin-bottom: 15px;
}

.auth-input-group i {
    position: absolute;
    top: 50%;
    left: 10px;
    transform: translateY(-50%);
    color: #6c757d;
    transition: all 0.3s ease;
}

.auth-input-group input {
    background-color: #333;
    border: none;
    border-radius: 6px;
    padding: 8px 8px 8px 35px;
    height: 38px;
    width: 100%;
    color: #fff;
    transition: all 0.3s ease;
}

.auth-input-group input:focus {
    background-color: #444;
    box-shadow: 0 0 0 2px rgba(106, 17, 203, 0.5);
}

.auth-input-group input:focus + i {
    color: #6a11cb;
}

.auth-btn {
    display: block;
    width: 100%;
    padding: 8px;
    background: linear-gradient(45deg, #6a11cb, #2575fc);
    border: none;
    border-radius: 8px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    z-index: 1;
    height: 38px;
}

.auth-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: all 0.6s ease;
    z-index: -1;
}

.auth-btn:hover::before {
    left: 100%;
}

.auth-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 7px 14px rgba(0, 0, 0, 0.3);
}

.auth-btn:active {
    transform: translateY(0);
}

.auth-footer {
    margin-top: 20px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.auth-footer a {
    color: #6a11cb;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.auth-footer a:hover {
    text-decoration: underline;
    color: #2575fc;
}

.auth-or {
    display: flex;
    align-items: center;
    margin: 20px 0;
    color: #6c757d;
}

.auth-or::before,
.auth-or::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid #444;
}

.auth-or span {
    padding: 0 10px;
}

.auth-remember {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.auth-remember input[type="checkbox"] {
    margin-right: 8px;
}

/* Dark Mode Forms */
.dark-form .form-control {
    background-color: #333;
    border-color: #444;
    color: #fff;
}

.dark-form .form-control:focus {
    background-color: #444;
    border-color: #6a11cb;
    box-shadow: 0 0 0 0.25rem rgba(106, 17, 203, 0.25);
}

.dark-form .form-label,
.dark-form .form-check-label {
    color: #f8f9fa;
}

/* Enhanced Responsive Design */

/* Mobile First Approach - Base styles for mobile */
@media (max-width: 576px) {
    /* Typography adjustments */
    body {
        font-size: 14px;
        line-height: 1.5;
    }
    
    /* Navigation */
    .navbar-brand {
        font-size: 1.1rem;
    }
    
    .navbar-nav .nav-link {
        padding: 0.5rem 0.75rem !important;
        font-size: 0.9rem;
    }
    
    /* Hero section */
    .hero {
        padding: 40px 0;
        height: 60vh;
        min-height: 400px;
    }
    
    .hero h1 {
        font-size: 2rem;
        margin-bottom: 1rem;
    }
    
    .hero .lead {
        font-size: 1rem;
        margin-bottom: 1.5rem;
    }
    
    .hero-btn {
        padding: 10px 20px;
        font-size: 1rem;
        width: 100%;
        margin-top: 1rem;
    }
    
    /* Cards */
    .card-img-top {
        height: 180px;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .card-title {
        font-size: 1.1rem;
    }
    
    /* Dashboard */
    .dashboard-header {
        padding: 1.5rem;
        margin-bottom: 1.5rem;
    }
    
    .dashboard-header h1 {
        font-size: 1.8rem;
    }
    
    .dashboard-header p {
        font-size: 0.95rem;
        max-width: 100%;
    }
    
    .stat-card {
        padding: 1rem;
        margin-bottom: 1rem;
    }
    
    .stat-card h3 {
        font-size: 1.5rem;
    }
    
    .stat-card i {
        font-size: 2rem;
    }
    
    /* Forms */
    .auth-container {
        padding: 1.5rem;
        margin: 1rem;
    }
    
    .auth-header h2 {
        font-size: 1.5rem;
    }
    
    .form-container {
        padding: 1.5rem;
    }
    
    /* Sustainability score */
    .sustainability-score {
        width: 35px;
        height: 35px;
        font-size: 0.9rem;
    }
    
    /* Modal adjustments */
    .modal-xl {
        max-width: 95%;
        margin: 0.5rem;
    }
    
    .modal-body iframe {
        height: 400px;
    }
    
    /* Footer */
    footer {
        padding: 2rem 0 !important;
    }
    
    footer .col-md-6,
    footer .col-md-3 {
        margin-bottom: 1.5rem;
    }
    
    /* Container adjustments */
    .container {
        padding-left: 15px;
        padding-right: 15px;
    }
}

/* Small devices (landscape phones, 576px and up) */
@media (min-width: 576px) and (max-width: 767px) {
    .hero {
        padding: 50px 0;
        height: 65vh;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .hero .lead {
        font-size: 1.1rem;
    }
    
    .card-img-top {
        height: 200px;
    }
    
    .dashboard-header h1 {
        font-size: 2rem;
    }
    
    .stat-card h3 {
        font-size: 1.8rem;
    }
}

/* Medium devices (tablets, 768px and up) */
@media (min-width: 768px) and (max-width: 991px) {
    .hero {
        padding: 60px 0;
        height: 70vh;
    }
    
    .hero h1 {
        font-size: 2.8rem;
    }
    
    .hero .lead {
        font-size: 1.2rem;
    }
    
    .card-img-top {
        height: 220px;
    }
    
    .dashboard-header h1 {
        font-size: 2.2rem;
    }
    
    .stat-card h3 {
        font-size: 1.9rem;
    }
    
    /* Grid adjustments for tablets */
    .col-md-4 {
        margin-bottom: 1.5rem;
    }
    
    /* Navigation improvements */
    .navbar-nav .nav-link {
        padding: 0.6rem 1rem !important;
    }
}

/* Large devices (desktops, 992px and up) */
@media (min-width: 992px) and (max-width: 1199px) {
    .hero {
        padding: 80px 0;
        height: 75vh;
    }
    
    .hero h1 {
        font-size: 3.2rem;
    }
    
    .card-img-top {
        height: 240px;
    }
    
    .dashboard-header h1 {
        font-size: 2.4rem;
    }
}

/* Extra large devices (large desktops, 1200px and up) */
@media (min-width: 1200px) {
    .hero {
        padding: 100px 0;
        height: 80vh;
    }
    
    .hero h1 {
        font-size: 3.5rem;
    }
    
    .card-img-top {
        height: 250px;
    }
    
    .dashboard-header h1 {
        font-size: 2.5rem;
    }
}

/* Landscape orientation adjustments */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        height: 100vh;
        padding: 20px 0;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero .lead {
        font-size: 1rem;
        margin-bottom: 1rem;
    }
    
    .modal-body iframe {
        height: 300px;
    }
}

/* High DPI displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .card-img-top,
    .item-img {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Print styles */
@media print {
    .navbar,
    .modal,
    .btn,
    footer {
        display: none !important;
    }
    
    .hero {
        background: none !important;
        color: #000 !important;
        padding: 20px 0 !important;
    }
    
    .card {
        border: 1px solid #ccc !important;
        box-shadow: none !important;
    }
    
    .container {
        max-width: 100% !important;
    }
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .card {
        background-color: #232323;
        border-color: rgba(255, 255, 255, 0.1);
    }
    
    .form-control {
        background-color: #333;
        border-color: #444;
        color: #fff;
    }
}

/* Focus improvements for keyboard navigation */
@media (any-hover: none) {
    .card:hover,
    .btn:hover,
    .nav-link:hover {
        transform: none;
        box-shadow: none;
    }
    
    .card:focus,
    .btn:focus,
    .nav-link:focus {
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    }
}

/* Additional responsive utilities */
.responsive-text {
    font-size: clamp(0.9rem, 2.5vw, 1.1rem);
}

.responsive-heading {
    font-size: clamp(1.5rem, 5vw, 3rem);
}

.responsive-spacing {
    padding: clamp(1rem, 3vw, 2rem);
}

/* Touch-friendly improvements */
@media (pointer: coarse) {
    .btn {
        min-height: 44px;
        min-width: 44px;
    }
    
    .nav-link {
        min-height: 44px;
        display: flex;
        align-items: center;
    }
    
    .card {
        cursor: pointer;
    }
    
    .rating .star {
        font-size: 1.8rem;
        padding: 0.2rem;
    }
}

/* Improved scrolling on mobile */
@media (max-width: 768px) {
    body {
        -webkit-overflow-scrolling: touch;
    }
    
    .container-fluid {
        overflow-x: hidden;
    }
}

/* Better image loading */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Loading states */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Smooth transitions for all interactive elements */
* {
    transition: all 0.3s ease;
}

/* Disable transitions for users who prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
    * {
        transition: none !important;
        animation: none !important;
    }
}

/* Modal styles for recommendation system */
.modal-xl {
    max-width: 90%;
}

.modal-body iframe {
    min-height: 650px;
    border: none;
    overflow: hidden;
}

@media (max-width: 768px) {
    .modal-xl {
        max-width: 95%;
    }
    
    .modal-body iframe {
        height: 500px;
    }
}

/* Compact Navbar */
.navbar-compact {
    padding-top: 0.3rem;
    padding-bottom: 0.3rem;
}

.navbar-compact .navbar-brand {
    font-size: 1.1rem;
}

.navbar-compact .nav-link {
    padding-top: 0.3rem;
    padding-bottom: 0.3rem;
    font-size: 0.9rem;
}