/*
 * Apple-style Premium CSS Stylesheet for Water Audit Decision Support System
 * Custom Glassmorphism & Responsive Design
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
    /* Color Palette - Premium Dark Theme by default */
    --bg-color: #060913;
    --card-bg: rgba(13, 18, 33, 0.65);
    --card-border: rgba(255, 255, 255, 0.08);
    --text-primary: #f3f4f6;
    --text-secondary: #a1a8b9;
    --text-muted: #626a7e;
    
    --accent-color: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.25);
    
    --success-color: #10b981;
    --success-glow: rgba(16, 185, 129, 0.25);
    
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    
    /* Font Declarations */
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    
    /* Glassmorphism Blur */
    --glass-blur: 32px;
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Light Theme Variables */
body.light-theme {
    --bg-color: #f3f6fa;
    --card-bg: rgba(255, 255, 255, 0.75);
    --card-border: rgba(0, 0, 0, 0.06);
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    --accent-color: #2563eb;
    --accent-glow: rgba(37, 99, 235, 0.15);
    
    --success-color: #059669;
    --success-glow: rgba(5, 150, 105, 0.15);
    
    --warning-color: #d97706;
    --danger-color: #dc2626;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    transition: background-color 0.5s ease, color 0.3s ease;
}

/* Ambient Glowing Background Orbs */
.bg-glow-container {
    position: fixed;
    width: 100vw;
    height: 100vh;
    top: 0;
    left: 0;
    overflow: hidden;
    z-index: 1;
    pointer-events: none;
}

.bg-glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.18;
    mix-blend-mode: screen;
    animation: orbFloat 25s infinite ease-in-out alternate;
}

body.light-theme .bg-glow-orb {
    opacity: 0.12;
    mix-blend-mode: multiply;
    filter: blur(100px);
}

.orb-1 {
    width: 45vw;
    height: 45vw;
    background: radial-gradient(circle, var(--accent-color) 0%, transparent 80%);
    top: -10vw;
    left: -10vw;
}

.orb-2 {
    width: 55vw;
    height: 55vw;
    background: radial-gradient(circle, #8b5cf6 0%, transparent 80%);
    bottom: -15vw;
    right: -15vw;
    animation-delay: -5s;
}

.orb-3 {
    width: 35vw;
    height: 35vw;
    background: radial-gradient(circle, var(--success-color) 0%, transparent 80%);
    top: 25vh;
    left: 45vw;
    animation-delay: -10s;
}

@keyframes orbFloat {
    0% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(6%, 8%) scale(1.08); }
    100% { transform: translate(-4%, -6%) scale(0.92); }
}

/* Master Layout Container */
#app-container {
    position: relative;
    width: 100%;
    z-index: 2;
    display: flex;
    flex-direction: column;
}

/* Header Navbar */
#app-header {
    height: 80px;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--card-border);
    background: rgba(6, 9, 19, 0.4);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 10;
}

body.light-theme #app-header {
    background: rgba(243, 246, 250, 0.4);
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.app-header-logo-img {
    transition: var(--transition-smooth);
    border-radius: 6px;
}

.header-logo:hover .app-header-logo-img {
    transform: scale(1.04);
}

.header-title {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 20px;
    letter-spacing: -0.5px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.badge-premium {
    font-size: 11px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-color), #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    border: 1px solid rgba(139, 92, 246, 0.4);
    padding: 2px 8px;
    border-radius: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Theme Toggle button */
.theme-toggle-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    width: 36px;
    height: 36px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-smooth);
}

body.light-theme .theme-toggle-btn {
    background: rgba(0, 0, 0, 0.03);
}

.theme-toggle-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: scale(1.05);
}

body.light-theme .theme-toggle-btn:hover {
    background: rgba(0, 0, 0, 0.06);
}

/* Back to Home Button */
.btn-back-home {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-size: 13px;
    font-weight: 700;
    text-decoration: none;
    transition: var(--transition-smooth);
    cursor: pointer;
}

body.light-theme .btn-back-home {
    background: rgba(0, 0, 0, 0.03);
}

.btn-back-home:hover {
    background: rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.3);
    color: var(--accent-color);
    transform: translateY(-1px);
}

body.light-theme .btn-back-home:hover {
    background: rgba(37, 99, 235, 0.08);
    border-color: rgba(37, 99, 235, 0.2);
}

.btn-back-icon {
    font-size: 14px;
    transition: transform 0.2s ease;
}

.btn-back-home:hover .btn-back-icon {
    transform: translateX(-3px);
}

@media (max-width: 480px) {
    .btn-back-text {
        display: none;
    }
    .btn-back-home {
        padding: 8px 12px;
    }
}

/* Dashboard Grid Layout */
.dashboard-grid {
    display: grid;
    grid-template-columns: 430px 1fr;
    gap: 24px;
    padding: 24px 40px;
    max-width: 1500px;
    margin: 0 auto;
    width: 100%;
}

.dashboard-panel {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.panel-right {
    min-height: 500px;
}

/* Premium Card Glassmorphism */
.card.glassmorphic {
    background: var(--card-bg);
    backdrop-filter: blur(var(--glass-blur)) saturate(180%);
    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(180%);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 28px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    transition: var(--transition-smooth);
    width: 100%;
}

.card.glassmorphic:hover {
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.22);
}

.card-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 18px;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.card-subtitle {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 24px;
}

.font-sm {
    margin-bottom: 16px;
}

/* Form Styles */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 12px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    color: var(--text-secondary);
    padding-left: 2px;
}

.custom-select-wrapper {
    position: relative;
    width: 100%;
}

.custom-select-wrapper select {
    width: 100%;
    padding: 13px 16px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 13.5px;
    outline: none;
    appearance: none;
    transition: var(--transition-smooth);
    cursor: pointer;
}

body.light-theme .custom-select-wrapper select {
    background: rgba(0, 0, 0, 0.02);
}

.custom-select-wrapper select:hover {
    background: rgba(255, 255, 255, 0.08);
}

body.light-theme .custom-select-wrapper select:hover {
    background: rgba(0, 0, 0, 0.04);
}

.custom-select-wrapper select:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 4px var(--accent-glow);
}

/* Prevent unreadable options in select dropdowns on different browsers */
.custom-select-wrapper select option {
    background: #0f121d;
    color: #f3f4f6;
}

body.light-theme .custom-select-wrapper select option {
    background: #ffffff;
    color: #1e293b;
}

.custom-select-wrapper::after {
    content: "";
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    width: 10px;
    height: 6px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 10 6'%3E%3Cpath stroke='%239ca3af' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m1 1 4 4 4-4'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    pointer-events: none;
}

/* Upload Dropzone Styling */
.upload-dropzone {
    width: 100%;
    min-height: 180px;
    border: 2px dashed var(--card-border);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.02);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: var(--transition-smooth);
    padding: 20px;
}

body.light-theme .upload-dropzone {
    background: rgba(0, 0, 0, 0.015);
}

.upload-dropzone:hover, .upload-dropzone.dragover {
    border-color: var(--accent-color);
    background: rgba(59, 130, 246, 0.05);
    box-shadow: 0 0 20px var(--accent-glow);
}

.upload-content {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    pointer-events: none;
    transition: var(--transition-smooth);
}

.upload-icon {
    font-size: 36px;
    margin-bottom: 4px;
}

.upload-text-main {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 14px;
    color: var(--text-primary);
}

.upload-text-sub {
    font-size: 11px;
    color: var(--text-muted);
}

.upload-preview-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(13, 18, 33, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
}

body.light-theme .upload-preview-container {
    background: rgba(255, 255, 255, 0.95);
}

.upload-preview-container img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 8px;
}

.btn-remove-img {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: #fff;
    font-size: 11px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
    z-index: 5;
}

.btn-remove-img:hover {
    background: var(--danger-color);
    transform: scale(1.1);
    border-color: transparent;
}

/* Action Buttons */
.btn-primary {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
    border: none;
    border-radius: 14px;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 14px;
    letter-spacing: -0.2px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.3);
    transition: var(--transition-smooth);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(37, 99, 235, 0.45);
}

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

.btn-primary:disabled {
    background: var(--text-muted);
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Placeholder and Loading States styling */
.placeholder-card, .loading-card {
    min-height: 480px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.placeholder-content {
    max-width: 380px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
}

.placeholder-icon {
    font-size: 54px;
    animation: iconFloat 4s infinite ease-in-out alternate;
}

@keyframes iconFloat {
    0% { transform: translateY(0) rotate(0deg); }
    100% { transform: translateY(-10px) rotate(4deg); }
}

.placeholder-card h3 {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.placeholder-card p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.loading-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    text-align: center;
}

.spinner-ring {
    width: 52px;
    height: 52px;
    border: 4px solid rgba(59, 130, 246, 0.1);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-title {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.loading-text {
    font-size: 13px;
    color: var(--text-secondary);
    max-width: 360px;
    line-height: 1.5;
    animation: textPulse 1.6s infinite alternate;
}

@keyframes textPulse {
    from { opacity: 0.5; }
    to { opacity: 1; }
}

/* Results: Stats Highlight Cards */
.results-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin-bottom: 20px;
}

.stat-card {
    padding: 20px 14px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    min-height: 104px;
}

.stat-label {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

.stat-value {
    font-family: var(--font-heading);
    font-size: 26px;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
}

.stat-unit {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
}

.stat-water {
    border-color: rgba(59, 130, 246, 0.18);
    background: radial-gradient(circle at top right, rgba(59, 130, 246, 0.08), transparent), var(--card-bg);
}

body.light-theme .stat-water {
    border-color: rgba(37, 99, 235, 0.15);
    background: radial-gradient(circle at top right, rgba(37, 99, 235, 0.06), transparent), var(--card-bg);
}

.stat-area {
    border-color: rgba(139, 92, 246, 0.18);
    background: radial-gradient(circle at top right, rgba(139, 92, 246, 0.08), transparent), var(--card-bg);
}

body.light-theme .stat-area {
    border-color: rgba(139, 92, 246, 0.12);
    background: radial-gradient(circle at top right, rgba(139, 92, 246, 0.05), transparent), var(--card-bg);
}

.stat-score {
    border-color: rgba(16, 185, 129, 0.18);
    background: radial-gradient(circle at top right, rgba(16, 185, 129, 0.08), transparent), var(--card-bg);
}

body.light-theme .stat-score {
    border-color: rgba(16, 185, 129, 0.12);
    background: radial-gradient(circle at top right, rgba(16, 185, 129, 0.05), transparent), var(--card-bg);
}

/* General Report Summary Section */
.summary-card {
    margin-bottom: 20px;
}

.summary-text {
    font-size: 13.5px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Detected Plants Section */
.plants-card {
    margin-bottom: 20px;
}

.plant-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.plant-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--card-border);
    border-radius: 14px;
    padding: 18px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    transition: var(--transition-smooth);
}

body.light-theme .plant-card {
    background: rgba(0, 0, 0, 0.015);
}

.plant-card:hover {
    background: rgba(255, 255, 255, 0.04);
    transform: translateX(4px);
    border-color: rgba(255, 255, 255, 0.15);
}

body.light-theme .plant-card:hover {
    background: rgba(0, 0, 0, 0.03);
    border-color: rgba(0, 0, 0, 0.12);
}

.plant-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.plant-name {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 14.5px;
    color: var(--text-primary);
}

.plant-meta {
    display: flex;
    align-items: center;
    gap: 8px;
}

.plant-badge-status {
    font-size: 9.5px;
    font-weight: 700;
    padding: 4px 8px;
    border-radius: 6px;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}

.status-optimal {
    background: rgba(16, 185, 129, 0.12);
    color: var(--success-color);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.status-lawn-protected {
    background: rgba(59, 130, 246, 0.12);
    color: var(--accent-color);
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.status-replace {
    background: rgba(239, 68, 68, 0.12);
    color: var(--danger-color);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.plant-liters-badge {
    font-size: 11px;
    font-weight: 700;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    padding: 3px 8px;
    border-radius: 6px;
    border: 1px solid var(--card-border);
}

body.light-theme .plant-liters-badge {
    background: rgba(0, 0, 0, 0.04);
}

.plant-recommendation {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.plant-alternative {
    font-size: 12.5px;
    font-weight: 600;
    background: rgba(245, 158, 11, 0.08);
    border: 1px dashed rgba(245, 158, 11, 0.3);
    color: #f59e0b;
    padding: 10px 12px;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 4px;
}

body.light-theme .plant-alternative {
    background: rgba(217, 119, 6, 0.05);
    border-color: rgba(217, 119, 6, 0.2);
    color: #d97706;
}

/* Lawn Optimization Card (Protected State Display) */
.lawn-card {
    border-color: rgba(16, 185, 129, 0.25);
    background: radial-gradient(circle at top right, rgba(16, 185, 129, 0.08), transparent), var(--card-bg);
    margin-top: 10px;
    box-shadow: 0 10px 30px rgba(16, 185, 129, 0.05);
}

body.light-theme .lawn-card {
    border-color: rgba(5, 150, 105, 0.2);
    background: radial-gradient(circle at top right, rgba(5, 150, 105, 0.05), transparent), var(--card-bg);
}

.lawn-card:hover {
    border-color: rgba(16, 185, 129, 0.45);
    box-shadow: 0 12px 36px rgba(16, 185, 129, 0.15);
}

.lawn-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.lawn-badge {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success-color);
    border: 1px solid rgba(16, 185, 129, 0.3);
    font-size: 9px;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 6px;
    letter-spacing: 0.5px;
}

.lawn-tips-list {
    margin-top: 18px;
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.lawn-tips-list li {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
    position: relative;
    padding-left: 24px;
}

.lawn-tips-list li::before {
    content: "🌱";
    position: absolute;
    left: 2px;
    top: 1px;
    font-size: 12px;
}

/* Animations for stats entry */
.animate-stat {
    animation: statEntrance 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
    transform: translateY(12px);
}

.results-stats-grid > div:nth-child(2) {
    animation-delay: 0.15s;
}

@keyframes statEntrance {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================================================
   Responsive Styles
   ========================================================================== */
@media (max-width: 1200px) {
    .results-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
        padding: 20px;
        gap: 20px;
    }
}

@media (max-width: 768px) {
    #app-header {
        padding: 0 20px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .results-stats-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .card.glassmorphic {
        padding: 20px;
    }
}