:root {
    --primary-color: #2a7221;
    --primary-dark: #1e5717;
    --primary-light: #4a9e3f;
    --secondary-color: #c47a2e;
    --accent-color: #e6a157;
    --dark-bg: #1a2a1a;
    --light-bg: #f5f7e9;
    --card-bg: #ffffff;
    --text-primary: #1e2a1f;
    --text-secondary: #5a6b4a;
    --border-color: #e0e6cf;
    --success: #27ae60;
    --warning: #f39c12;
    --danger: #e74c3c;
    --info: #3498db;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, var(--light-bg) 0%, #eef2e2 100%);
    color: var(--text-primary);
    line-height: 1.5;
}

/* Landing Page Styles */
.landing-container {
    position: relative;
    overflow-x: hidden;
}

.animated-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(42,114,33,0.03) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

.landing-nav {
    padding: 1.5rem 2rem;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
}

.logo i {
    background: none;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--primary-color);
}

.btn-login, .btn-register {
    padding: 0.5rem 1.25rem;
    border-radius: 2rem;
}

.btn-login {
    background: transparent;
    border: 1px solid var(--border-color);
}

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

.btn-register:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.hero {
    max-width: 1280px;
    margin: 0 auto;
    padding: 4rem 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.btn-primary, .btn-outline {
    padding: 0.875rem 2rem;
    border-radius: 2rem;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

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

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
}

.stats-banner {
    display: flex;
    gap: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.floating-cards {
    position: relative;
    height: 400px;
}

.card-sample {
    position: absolute;
    background: white;
    padding: 1rem 1.5rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: float 3s ease-in-out infinite;
}

.sweet-card {
    top: 20%;
    left: 20%;
    animation-delay: 0s;
}

.flour-card {
    top: 50%;
    right: 10%;
    animation-delay: 0.5s;
}

.waxy-card {
    bottom: 20%;
    left: 30%;
    animation-delay: 1s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* Features Section */
.features {
    padding: 5rem 2rem;
    background: white;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-tag {
    display: inline-block;
    background: rgba(42,114,33,0.1);
    color: var(--primary-color);
    padding: 0.25rem 1rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--light-bg);
    padding: 2rem;
    border-radius: 1.5rem;
    transition: var(--transition);
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.feature-icon i {
    font-size: 2rem;
    color: white;
}

.feature-card h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* How It Works */
.how-it-works {
    padding: 5rem 2rem;
    background: var(--light-bg);
}

.steps {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.step {
    text-align: center;
    flex: 1;
    min-width: 200px;
    position: relative;
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin: 0 auto 1rem;
}

.step-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.step h3 {
    margin-bottom: 0.5rem;
}

.step p {
    color: var(--text-secondary);
}

.step-arrow {
    font-size: 2rem;
    color: var(--border-color);
}

/* Research Section */
.research {
    padding: 5rem 2rem;
    background: white;
}

.research-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.research-list {
    list-style: none;
    margin: 1.5rem 0;
}

.research-list li {
    margin: 0.75rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.research-list li i {
    color: var(--success);
}

.confusion-matrix {
    background: var(--light-bg);
    padding: 1.5rem;
    border-radius: 1rem;
}

.matrix-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.5rem;
    margin-top: 1rem;
}

.matrix-cell {
    padding: 0.5rem;
    text-align: center;
    background: white;
    border-radius: 0.5rem;
}

.matrix-cell.header {
    background: var(--primary-color);
    color: white;
    font-weight: 600;
}

/* Demo Section */
.demo {
    padding: 5rem 2rem;
    background: linear-gradient(135deg, var(--primary-dark), var(--secondary-color));
}

.demo-card {
    text-align: center;
    color: white;
}

.demo-card h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.demo-card p {
    margin-bottom: 2rem;
}

.demo-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.demo-card .btn-outline {
    border-color: white;
    color: white;
}

.demo-card .btn-outline:hover {
    background: white;
    color: var(--primary-color);
}

/* Footer */
.footer {
    background: #1a1a1a;
    color: #999;
    padding: 3rem 2rem 1rem;
}

.footer-content {
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section .logo {
    justify-content: center;
    margin-bottom: 1rem;
}

.footer-section h4 {
    color: white;
    margin-bottom: 1rem;
}

.footer-section a {
    display: block;
    color: #999;
    text-decoration: none;
    margin: 0.5rem 0;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--primary-light);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #333;
}

/* Auth Pages */
.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.auth-container {
    width: 100%;
    max-width: 480px;
    padding: 1rem;
}

.auth-card {
    background: white;
    border-radius: 2rem;
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header .logo {
    justify-content: center;
    margin-bottom: 1rem;
}

.auth-header h2 {
    margin-bottom: 0.5rem;
}

.auth-form .form-group {
    margin-bottom: 1.25rem;
}

.auth-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.auth-form input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    font-size: 1rem;
    transition: var(--transition);
}

.auth-form input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(42,114,33,0.1);
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

.demo-credentials {
    margin-top: 1.5rem;
    padding: 1rem;
    background: var(--light-bg);
    border-radius: 0.75rem;
    font-size: 0.875rem;
}

.demo-credentials code {
    display: block;
    margin: 0.25rem 0;
    font-family: monospace;
}

.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.auth-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

/* App Layout */
.app-wrapper {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    background: white;
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-nav {
    flex: 1;
    padding: 1.5rem 0;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
    margin: 0.25rem 0;
}

.nav-item:hover {
    background: var(--light-bg);
}

.nav-item.active {
    background: linear-gradient(90deg, rgba(42,114,33,0.1), transparent);
    border-right: 3px solid var(--primary-color);
    color: var(--primary-color);
}

.nav-item i {
    width: 20px;
}

.sidebar-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.logout-btn {
    width: 100%;
    padding: 0.75rem;
    background: transparent;
    border: 1px solid var(--danger);
    color: var(--danger);
    border-radius: 0.75rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: var(--transition);
}

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

.main-content {
    flex: 1;
    margin-left: 260px;
    padding: 1.5rem;
}

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.page-title h1 {
    font-size: 1.75rem;
    margin-bottom: 0.25rem;
}

.page-title p {
    color: var(--text-secondary);
}

.top-bar-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: white;
    padding: 1.5rem;
    border-radius: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-icon {
    width: 60px;
    height: 60px;
    background: rgba(42,114,33,0.1);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon i {
    font-size: 1.75rem;
    color: var(--primary-color);
}

.stat-info h3 {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.stat-number {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-change {
    font-size: 0.75rem;
}

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

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

/* Charts */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.chart-card {
    background: white;
    padding: 1.5rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-sm);
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

/* Analysis Page */
.analysis-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.tab-btn {
    padding: 0.75rem 1.5rem;
    background: transparent;
    border: none;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
    color: var(--text-secondary);
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.analysis-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.upload-zone {
    border: 2px dashed var(--border-color);
    border-radius: 1rem;
    padding: 3rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.upload-zone:hover {
    border-color: var(--primary-color);
    background: rgba(42,114,33,0.05);
}

.upload-zone i {
    font-size: 3rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.image-preview {
    margin-top: 1rem;
    text-align: center;
}

.image-preview img {
    max-width: 100%;
    max-height: 300px;
    border-radius: 0.5rem;
}

.results-section {
    background: white;
    border-radius: 1rem;
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.analysis-results {
    min-height: 300px;
}

.placeholder-results {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
}

.placeholder-results i {
    font-size: 3rem;
    margin-bottom: 1rem;
}

/* Camera Tab */
.camera-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.camera-preview {
    background: #000;
    border-radius: 1rem;
    overflow: hidden;
    position: relative;
}

.camera-preview video {
    width: 100%;
    height: auto;
}

.capture-btn {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
}

/* Batch Upload */
.batch-upload-zone {
    border: 2px dashed var(--border-color);
    border-radius: 1rem;
    padding: 3rem;
    text-align: center;
    cursor: pointer;
}

.batch-preview {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 1rem;
    margin: 1rem 0;
}

.batch-item {
    position: relative;
}

.batch-item img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: 0.5rem;
}

.batch-item .remove-btn {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--danger);
    color: white;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.progress-bar {
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    margin: 1rem 0;
}

.progress-fill {
    height: 100%;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

/* History Table */
.filters-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: white;
    border-radius: 1rem;
    align-items: center;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.filter-group input, .filter-group select {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
}

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

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

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

.history-table tr:hover {
    background: rgba(42,114,33,0.05);
}

.preview-thumb {
    width: 50px;
    height: 50px;
    object-fit: cover;
    border-radius: 0.5rem;
}

/* Comparison Page */
.comparison-selector {
    background: white;
    border-radius: 1rem;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.seed-slots {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.slot {
    flex: 1;
    border: 2px solid var(--border-color);
    border-radius: 1rem;
    overflow: hidden;
}

.slot-header {
    background: var(--light-bg);
    padding: 0.75rem;
    text-align: center;
    font-weight: 600;
}

.slot-content {
    padding: 1.5rem;
    text-align: center;
}

.slot-content.empty {
    min-height: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.vs-divider {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--text-secondary);
}

.comparison-results {
    background: white;
    border-radius: 1rem;
    padding: 1.5rem;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
}

.comparison-table th, .comparison-table td {
    padding: 0.75rem;
    text-align: center;
    border: 1px solid var(--border-color);
}

.comparison-table th {
    background: var(--light-bg);
}

/* Profile Page */
.profile-container {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 2rem;
}

.profile-sidebar {
    background: white;
    border-radius: 1rem;
    padding: 1.5rem;
    text-align: center;
}

.profile-avatar {
    position: relative;
    width: 150px;
    height: 150px;
    margin: 0 auto 1rem;
}

.profile-avatar img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
}

.change-avatar-btn {
    position: absolute;
    bottom: 0;
    right: 0;
    background: var(--primary-color);
    color: white;
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    cursor: pointer;
}

.profile-stats {
    text-align: left;
    margin-top: 1rem;
}

.stat-item {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

.profile-content {
    background: white;
    border-radius: 1rem;
    padding: 1.5rem;
}

.profile-tabs {
    display: flex;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
}

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

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.25rem;
    font-weight: 500;
}

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
}

/* Dataset Page */
.dataset-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.variety-gallery, .quality-levels, .model-architecture, .educational-section {
    margin-bottom: 3rem;
}

.variety-grid, .quality-grid, .resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.variety-card, .quality-card, .resource-card {
    background: white;
    border-radius: 1rem;
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.architecture-diagram {
    background: var(--light-bg);
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
}

.layer {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    margin: 0.25rem;
}

.arrow {
    display: inline-block;
    margin: 0 0.5rem;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        z-index: 1000;
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .stats-banner {
        justify-content: center;
    }
    
    .steps {
        flex-direction: column;
    }
    
    .step-arrow {
        transform: rotate(90deg);
    }
    
    .research-content {
        grid-template-columns: 1fr;
    }
    
    .analysis-grid {
        grid-template-columns: 1fr;
    }
    
    .profile-container {
        grid-template-columns: 1fr;
    }
    
    .seed-slots {
        flex-direction: column;
    }
    
    .vs-divider {
        transform: rotate(90deg);
    }
}

/* Dark Mode */
body.dark-mode {
    background: var(--dark-bg);
    color: #fff;
}

body.dark-mode .sidebar,
body.dark-mode .stat-card,
body.dark-mode .chart-card,
body.dark-mode .results-section,
body.dark-mode .profile-sidebar,
body.dark-mode .profile-content,
body.dark-mode .variety-card,
body.dark-mode .quality-card,
body.dark-mode .resource-card {
    background: #2d2d2d;
    color: #fff;
}

body.dark-mode .nav-item {
    color: #fff;
}

body.dark-mode .nav-item:hover {
    background: #3d3d3d;
}