:root {
    --bg-gradient: linear-gradient(135deg, #111e15 0%, #0c100e 100%);
    --card-bg: rgba(25, 35, 29, 0.7);
    --card-border: rgba(50, 80, 60, 0.2);
    --primary: #4ade80;
    --primary-hover: #22c55e;
    --primary-glow: rgba(74, 222, 128, 0.15);
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --danger: #ef4444;
    --danger-glow: rgba(239, 68, 68, 0.15);
    --warning: #f59e0b;
    --warning-glow: rgba(245, 158, 11, 0.15);
    --success: #10b981;
    --success-glow: rgba(16, 185, 129, 0.15);
    --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --shadow-premium: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --radius-lg: 16px;
    --radius-md: 12px;
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    background: var(--bg-gradient);
    font-family: var(--font-sans);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Glass background overlay */
.glass-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 30%, rgba(74, 222, 128, 0.05) 0%, transparent 60%);
    z-index: 0;
    pointer-events: none;
}

.app-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 40px 20px;
    position: relative;
    z-index: 1;
}

/* Navigation Header */
.app-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 25px;
    background: rgba(25, 35, 29, 0.5);
    border: 1px solid rgba(50, 80, 60, 0.15);
    border-radius: var(--radius-md);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    margin-bottom: 30px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 1.1rem;
    color: #ffffff;
}

.nav-icon {
    width: 20px;
    height: 20px;
    color: var(--primary);
}

.portfolio-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, rgba(74, 222, 128, 0.1) 0%, rgba(74, 222, 128, 0.2) 100%);
    border: 1px solid rgba(74, 222, 128, 0.3);
    color: #ffffff;
    padding: 8px 16px;
    border-radius: 20px;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: var(--transition-smooth);
}

.portfolio-btn:hover {
    background: linear-gradient(135deg, var(--primary) 0%, #10b981 100%);
    box-shadow: 0 0 15px var(--primary-glow);
    border-color: var(--primary);
    transform: translateY(-2px);
}

.portfolio-btn i {
    width: 14px;
    height: 14px;
}

.btn-sub-icon {
    opacity: 0.7;
    margin-left: 2px;
}

/* Header */
.app-header {
    text-align: center;
    margin-bottom: 40px;
}

.logo-area {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 12px;
}

.logo-area h1 {
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, #ffffff 30%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.header-icon {
    width: 32px;
    height: 32px;
    color: var(--primary);
    filter: drop-shadow(0 0 8px var(--primary));
}

.subtitle {
    color: var(--text-muted);
    font-size: 1.05rem;
    max-width: 600px;
    margin: 0 auto;
    font-weight: 300;
    line-height: 1.5;
}

/* Loader Card */
.model-status-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: var(--radius-lg);
    padding: 30px;
    display: flex;
    align-items: center;
    gap: 24px;
    box-shadow: var(--shadow-premium);
    margin-bottom: 30px;
    transition: var(--transition-smooth);
}

.spinner-container {
    flex-shrink: 0;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid rgba(74, 222, 128, 0.1);
    border-radius: 50%;
    border-top-color: var(--primary);
    animation: spin 1s linear infinite;
}

.status-info {
    flex-grow: 1;
}

.status-info h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.status-info p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 12px;
}

.progress-bar-container {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 3px;
    overflow: hidden;
}

.loader-progress-bar {
    height: 100%;
    width: 0%;
    background: var(--primary);
    border-radius: 3px;
    transition: width 0.3s ease;
    box-shadow: 0 0 10px var(--primary);
}

/* Grid Layout */
.grid-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

/* Card General */
.card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: var(--shadow-premium);
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: var(--transition-smooth);
}

.card:hover {
    border-color: rgba(74, 222, 128, 0.3);
    box-shadow: 0 12px 40px 0 rgba(74, 222, 128, 0.05);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    color: var(--primary);
}

.card-header h2 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-main);
}

.card-header i {
    width: 20px;
    height: 20px;
}

/* Upload Zone */
.upload-zone {
    border: 2px dashed rgba(74, 222, 128, 0.25);
    border-radius: var(--radius-md);
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    background: rgba(74, 222, 128, 0.02);
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex-grow: 1;
}

.upload-zone:hover {
    border-color: var(--primary);
    background: rgba(74, 222, 128, 0.05);
    box-shadow: inset 0 0 12px var(--primary-glow);
}

.upload-icon {
    width: 48px;
    height: 48px;
    color: var(--text-muted);
    margin-bottom: 16px;
    transition: var(--transition-smooth);
}

.upload-zone:hover .upload-icon {
    color: var(--primary);
    transform: translateY(-4px);
    filter: drop-shadow(0 0 6px var(--primary-glow));
}

.upload-prompt {
    font-size: 1rem;
    margin-bottom: 8px;
    color: var(--text-main);
}

.upload-prompt span {
    color: var(--primary);
    font-weight: 500;
    text-decoration: underline;
}

.upload-formats {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Preview Container */
.preview-container {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex-grow: 1;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.preview-img {
    max-width: 100%;
    max-height: 350px;
    object-fit: contain;
    border-radius: var(--radius-md);
}

.reset-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #ffffff;
    padding: 6px 12px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 6px;
    backdrop-filter: blur(4px);
    transition: var(--transition-smooth);
}

.reset-btn:hover {
    background: var(--danger);
    border-color: var(--danger);
    box-shadow: 0 0 10px var(--danger-glow);
}

.reset-btn i {
    width: 14px;
    height: 14px;
}

/* Results Idle & Processing */
.result-idle, .result-processing {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex-grow: 1;
    text-align: center;
    color: var(--text-muted);
}

.scan-icon {
    width: 64px;
    height: 64px;
    color: rgba(74, 222, 128, 0.2);
    margin-bottom: 16px;
}

.processing-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    border-top-color: var(--primary);
    animation: spin 1s linear infinite;
    margin-bottom: 16px;
}

/* Diagnosis Output styling */
.result-display {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.diagnosis-header {
    margin-bottom: 20px;
}

.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.badge.healthy {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.badge.infected {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.badge.warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.result-display h3 {
    font-size: 1.8rem;
    font-weight: 700;
    color: #ffffff;
}

.confidence-section {
    background: rgba(0, 0, 0, 0.15);
    padding: 16px;
    border-radius: var(--radius-md);
    margin-bottom: 24px;
    border: 1px solid rgba(255, 255, 255, 0.02);
}

.confidence-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    margin-bottom: 8px;
    color: var(--text-muted);
}

.confidence-header span:last-child {
    font-weight: 600;
    color: var(--primary);
}

.confidence-bar-bg {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
    overflow: hidden;
}

.confidence-bar-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--primary) 0%, #10b981 100%);
    border-radius: 4px;
    transition: width 0.8s cubic-bezier(0.1, 0.8, 0.2, 1);
    box-shadow: 0 0 10px rgba(74, 222, 128, 0.3);
}

.divider {
    border: 0;
    height: 1px;
    background: rgba(255, 255, 255, 0.08);
    margin-bottom: 24px;
}

/* Care Recommendations */
.care-section {
    flex-grow: 1;
}

.care-header {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-main);
    margin-bottom: 10px;
}

.care-header h4 {
    font-size: 0.95rem;
    font-weight: 600;
}

.care-header i {
    width: 16px;
    height: 16px;
    color: var(--primary);
}

.care-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin-bottom: 20px;
}

.care-tips-list {
    list-style: none;
    padding-left: 0;
}

.care-tips-list li {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin-bottom: 10px;
    position: relative;
    padding-left: 20px;
}

.care-tips-list li::before {
    content: "•";
    color: var(--primary);
    font-weight: bold;
    font-size: 1.2rem;
    position: absolute;
    left: 4px;
    top: -2px;
}

.mt-4 {
    margin-top: 1.5rem;
}

/* Footer */
.app-footer {
    text-align: center;
    margin-top: 50px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-muted);
    font-size: 0.85rem;
}

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

/* Responsive Grid */
@media (max-width: 768px) {
    .grid-layout {
        grid-template-columns: 1fr;
    }
    
    .app-container {
        padding: 20px 15px;
    }
    
    .logo-area h1 {
        font-size: 1.8rem;
    }
    
    .app-nav {
        padding: 12px 18px;
    }
}

/* Warning State */
.result-warning {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex-grow: 1;
    text-align: center;
    padding: 20px;
    animation: fadeIn 0.4s ease;
}

.warning-icon {
    width: 64px;
    height: 64px;
    color: var(--warning);
    margin-bottom: 16px;
    filter: drop-shadow(0 0 8px var(--warning-glow));
}

.result-warning h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 12px;
}

.result-warning p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
    max-width: 320px;
    margin-bottom: 24px;
}

.warning-retry-btn {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1) 0%, rgba(245, 158, 11, 0.2) 100%);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: #ffffff;
    padding: 10px 20px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition-smooth);
}

.warning-retry-btn:hover {
    background: linear-gradient(135deg, var(--warning) 0%, #d97706 100%);
    box-shadow: 0 0 15px var(--warning-glow);
    border-color: var(--warning);
    transform: translateY(-2px);
}

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