/* Rigo-AI Soil Analysis Platform - Main Styles */

:root {
    --primary-green: #04CB57;
    --dark-green: #039647;
    --light-green: #E8F8F0;
    --earth-brown: #8B4513;
    --soil-tan: #D2B48C;
    --text-dark: #2C3E50;
    --text-light: #7F8C8D;
    --white: #FFFFFF;
    --shadow: rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

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

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

.slide-in-left {
    animation: slideInLeft 0.6s ease-out;
}

.slide-in-right {
    animation: slideInRight 0.6s ease-out;
}

.pulse-animation {
    animation: pulse 2s infinite;
}

/* Navigation */
.navbar {
    background: var(--white);
    box-shadow: 0 2px 10px var(--shadow);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-green);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-brand i {
    font-size: 2rem;
}

.nav-link {
    color: var(--text-dark);
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover {
    color: var(--primary-green);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary-green);
    transition: var(--transition);
    transform: translateX(-50%);
}

.nav-link:hover::after {
    width: 80%;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--light-green) 0%, var(--white) 100%);
    padding: 6rem 0;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: var(--primary-green);
    opacity: 0.05;
    border-radius: 50%;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-content .highlight {
    color: var(--primary-green);
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.hero-image {
    position: relative;
}

.hero-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 60px var(--shadow);
}

/* Buttons */
.btn {
    padding: 0.875rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: var(--dark-green);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(4, 203, 87, 0.3);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary-green);
    border: 2px solid var(--primary-green);
}

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

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Upload Area */
.upload-section {
    padding: 4rem 0;
    background: var(--white);
}

.upload-area {
    border: 3px dashed var(--primary-green);
    border-radius: 20px;
    padding: 4rem 2rem;
    text-align: center;
    background: var(--light-green);
    transition: var(--transition);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.upload-area:hover,
.upload-area.drag-over {
    border-color: var(--dark-green);
    background: rgba(4, 203, 87, 0.1);
    transform: scale(1.02);
}

.upload-icon {
    font-size: 4rem;
    color: var(--primary-green);
}

.upload-area h3 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.upload-area p {
    color: var(--text-light);
}

#imageUpload {
    display: none;
}

/* Image Preview */
.image-preview {
    position: relative;
    display: none;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 40px var(--shadow);
}

.preview-image {
    width: 100%;
    height: auto;
    display: block;
}

.preview-overlay {
    position: absolute;
    top: 1rem;
    right: 1rem;
}

.btn-remove {
    background: rgba(255, 255, 255, 0.9);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.btn-remove:hover {
    background: #ff4444;
    color: var(--white);
    transform: scale(1.1);
}

/* Results Container */
.results-container {
    display: none;
    padding: 4rem 0;
    background: var(--light-green);
}

.results-content {
    background: var(--white);
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 10px 40px var(--shadow);
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid var(--light-green);
}

.confidence-badge {
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.1rem;
}

.soil-type-card {
    background: var(--light-green);
    padding: 2rem;
    border-radius: 15px;
    margin-bottom: 2rem;
}

.soil-type-card h3 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.soil-description {
    color: var(--text-light);
    font-size: 1.1rem;
}

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

.char-card {
    background: var(--white);
    border: 2px solid var(--light-green);
    border-radius: 15px;
    padding: 1.5rem;
    text-align: center;
    transition: var(--transition);
}

.char-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px var(--shadow);
}

.char-card i {
    font-size: 2.5rem;
    color: var(--primary-green);
    margin-bottom: 1rem;
}

.char-card h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.char-card p {
    color: var(--text-light);
}

/* Nutrients Section */
.nutrients-section,
.ph-section,
.recommendations-section {
    margin-bottom: 2rem;
    padding: 2rem;
    background: var(--light-green);
    border-radius: 15px;
}

.nutrients-section h3,
.ph-section h3,
.recommendations-section h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.nutrient-item {
    margin-bottom: 1.5rem;
}

.nutrient-item label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.progress-bar {
    background: var(--white);
    height: 30px;
    border-radius: 15px;
    position: relative;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    border-radius: 15px;
    transition: width 1s ease-out;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: 1rem;
}

.progress-fill span {
    color: var(--white);
    font-weight: 700;
    font-size: 0.9rem;
}

/* pH Indicator */
.ph-indicator {
    display: flex;
    align-items: center;
    gap: 2rem;
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
}

.ph-value {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-green);
}

.ph-range {
    font-size: 1.2rem;
    color: var(--text-dark);
    font-weight: 600;
}

.ph-status {
    color: var(--text-light);
}

/* Recommendations List */
.recommendations-list {
    list-style: none;
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
}

.recommendations-list li {
    padding: 1rem;
    margin-bottom: 0.5rem;
    border-left: 4px solid var(--primary-green);
    background: var(--light-green);
    border-radius: 5px;
}

/* Action Buttons */
.action-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.95);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-content {
    text-align: center;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--light-green);
    border-top-color: var(--primary-green);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

.loading-text {
    font-size: 1.2rem;
    color: var(--text-dark);
    font-weight: 600;
}

/* Notifications */
.notification {
    position: fixed;
    top: 2rem;
    right: 2rem;
    background: var(--white);
    padding: 1rem 1.5rem;
    border-radius: 10px;
    box-shadow: 0 10px 40px var(--shadow);
    display: flex;
    align-items: center;
    gap: 1rem;
    z-index: 10000;
    min-width: 300px;
}

.notification-success {
    border-left: 4px solid var(--primary-green);
}

.notification-error {
    border-left: 4px solid #ff4444;
}

.notification i {
    font-size: 1.5rem;
}

.notification-success i {
    color: var(--primary-green);
}

.notification-error i {
    color: #ff4444;
}

.fade-out {
    animation: fadeIn 0.3s ease-out reverse;
}

/* Features Section */
.features-section {
    padding: 4rem 0;
    background: var(--white);
}

.feature-card {
    text-align: center;
    padding: 2rem;
    border-radius: 15px;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px var(--shadow);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--light-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: var(--primary-green);
}

.feature-card h3 {
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.feature-card p {
    color: var(--text-light);
}

/* Footer */
.footer {
    background: var(--text-dark);
    color: var(--white);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    color: var(--primary-green);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--white);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-light);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }

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

    .action-buttons {
        flex-direction: column;
    }

    .ph-indicator {
        flex-direction: column;
        text-align: center;
    }

    .notification {
        right: 1rem;
        left: 1rem;
        min-width: auto;
    }
}