frontend/assets/style.css

/* ═══════════════════════════════════════════════════════════
   DERMASCAN AI - PROFESSIONAL MEDICAL UI STYLES
   Dark Mode Compatible - Production Grade
   ═══════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Poppins:wght@400;500;600;700;800&display=swap');

/* ═══════════════════════════════════════════════════════════
   CSS VARIABLES - DARK MODE THEME
   ═══════════════════════════════════════════════════════════ */
:root {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --primary-light: #60a5fa;
    --secondary: #10b981;
    --bg-main: #0f172a;
    --bg-card: #1e293b;
    --bg-elevated: #334155;
    --border: #334155;
    --border-light: #475569;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --shadow-sm: 0 1px 2px 0 rgba(0,0,0,0.3);
    --shadow: 0 4px 6px -1px rgba(0,0,0,0.4), 0 2px 4px -1px rgba(0,0,0,0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.5), 0 4px 6px -2px rgba(0,0,0,0.4);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.6), 0 10px 10px -5px rgba(0,0,0,0.5);
    --red: #ef4444;
    --red-light: #7f1d1d;
    --orange: #f97316;
    --orange-light: #7c2d12;
    --yellow: #f59e0b;
    --yellow-light: #78350f;
    --green: #10b981;
    --green-light: #064e3b;
    --blue: #3b82f6;
    --blue-light: #1e3a8a;
}

/* ═══════════════════════════════════════════════════════════
   GLOBAL STYLES
   ═══════════════════════════════════════════════════════════ */
body, p, h1, h2, h3, h4, h5, h6, div, span, label, button { 
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif !important; 
    color: var(--text-primary) !important;
}

h1, h2, h3 {
    font-family: 'Poppins', 'Inter', sans-serif !important;
}

#MainMenu, footer, header { visibility: hidden; }

.block-container {
    padding-top: 2rem !important;
    padding-bottom: 3rem !important;
    max-width: 1200px !important;
}

/* ═══════════════════════════════════════════════════════════
   HEADER
   ═══════════════════════════════════════════════════════════ */
.medical-header {
    background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 50%, #3b82f6 100%);
    border-radius: 20px;
    padding: 2.5rem 2rem;
    text-align: center;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-xl);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.medical-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="40" height="40" patternUnits="userSpaceOnUse"><path d="M 40 0 L 0 0 0 40" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.medical-header-content {
    position: relative;
    z-index: 1;
}

.medical-header h1 { 
    color: white !important; 
    font-size: 2.5rem; 
    font-weight: 800; 
    margin: 0;
    letter-spacing: -0.5px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.medical-header .subtitle { 
    color: rgba(255,255,255,0.95) !important; 
    margin: 0.8rem 0 1.2rem; 
    font-size: 1.1rem;
    font-weight: 500;
}

.medical-header .badges { 
    display: flex; 
    gap: 0.6rem; 
    justify-content: center; 
    flex-wrap: wrap;
    margin-top: 1rem;
}

.badge {
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.25);
    color: white !important;
    padding: 0.4rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

/* ═══════════════════════════════════════════════════════════
   CARDS
   ═══════════════════════════════════════════════════════════ */
.pro-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1.5rem;
    margin-bottom: 1rem;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.pro-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
    border-color: var(--border-light);
}

.pro-card h3 { 
    color: var(--text-primary) !important; 
    margin: 0 0 0.8rem; 
    font-size: 1.2rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pro-card p { 
    color: var(--text-secondary) !important; 
    margin: 0; 
    line-height: 1.7; 
    font-size: 0.95rem;
}

/* ═══════════════════════════════════════════════════════════
   SEVERITY BANNERS
   ═══════════════════════════════════════════════════════════ */
.severity-banner { 
    border-radius: 16px; 
    padding: 1.8rem 2rem; 
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-lg);
    border-left: 6px solid;
    position: relative;
    overflow: hidden;
}

.severity-banner h2 { 
    margin: 0; 
    font-size: 1.6rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.severity-banner h3 { 
    margin: 0.6rem 0 0; 
    font-size: 1.05rem;
    font-weight: 500;
}

.banner-critical { 
    background: linear-gradient(135deg, var(--red-light) 0%, #991b1b 100%);
    border-left-color: var(--red);
}
.banner-critical h2, .banner-critical h3 { color: #fca5a5 !important; }

.banner-high { 
    background: linear-gradient(135deg, var(--orange-light) 0%, #9a3412 100%);
    border-left-color: var(--orange);
}
.banner-high h2, .banner-high h3 { color: #fdba74 !important; }

.banner-medium { 
    background: linear-gradient(135deg, var(--yellow-light) 0%, #92400e 100%);
    border-left-color: var(--yellow);
}
.banner-medium h2, .banner-medium h3 { color: #fcd34d !important; }

.banner-low { 
    background: linear-gradient(135deg, var(--green-light) 0%, #065f46 100%);
    border-left-color: var(--green);
}
.banner-low h2, .banner-low h3 { color: #86efac !important; }

/* ═══════════════════════════════════════════════════════════
   METRICS
   ═══════════════════════════════════════════════════════════ */
.metric-card {
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: 16px;
    padding: 1.5rem;
    text-align: center;
    min-height: 140px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.metric-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
    border-color: var(--primary);
}

.metric-card .label {
    color: var(--text-muted) !important;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.metric-card .value { 
    font-size: 2rem; 
    font-weight: 800; 
    margin: 0.5rem 0;
    font-family: 'Poppins', sans-serif;
}

.metric-card .sublabel { 
    color: var(--text-muted) !important; 
    font-size: 0.8rem;
    font-weight: 500;
    margin-top: 0.3rem;
}

/* ═══════════════════════════════════════════════════════════
   INFO ITEMS
   ═══════════════════════════════════════════════════════════ */
.info-item {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1rem 1.2rem;
    margin-bottom: 0.6rem;
    color: var(--text-secondary) !important;
    font-size: 0.92rem;
    line-height: 1.6;
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
    transition: all 0.2s ease;
}

.info-item:hover {
    background: var(--bg-card);
    box-shadow: var(--shadow-sm);
    transform: translateX(4px);
    border-color: var(--border-light);
}

.info-item-icon {
    font-size: 1.2rem;
    flex-shrink: 0;
    margin-top: 0.1rem;
}

/* ═══════════════════════════════════════════════════════════
   WARNING & DISCLAIMER
   ═══════════════════════════════════════════════════════════ */
.warning-box {
    background: linear-gradient(135deg, var(--red-light) 0%, #991b1b 100%);
    border: 2px solid var(--red);
    border-radius: 12px;
    padding: 1.2rem 1.5rem;
    color: #fca5a5 !important;
    font-size: 0.95rem;
    margin: 1rem 0;
    box-shadow: var(--shadow);
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.warning-box-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.disclaimer-box {
    background: var(--yellow-light);
    border: 2px solid var(--yellow);
    border-radius: 12px;
    padding: 1rem 1.5rem;
    color: #fcd34d !important;
    font-size: 0.85rem;
    line-height: 1.6;
    margin: 1.5rem 0;
    box-shadow: var(--shadow-sm);
}

/* ═══════════════════════════════════════════════════════════
   EMERGENCY CARD
   ═══════════════════════════════════════════════════════════ */
.emergency-card {
    background: linear-gradient(135deg, var(--red-light) 0%, #991b1b 100%);
    border: 2px solid var(--red);
    border-radius: 12px;
    padding: 1.2rem;
    margin-top: 1rem;
    box-shadow: var(--shadow);
}

.emergency-card h4 { 
    color: #fca5a5 !important; 
    margin: 0 0 0.8rem; 
    font-size: 1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.emergency-card p { 
    color: #fecaca !important; 
    margin: 0.4rem 0; 
    font-size: 0.9rem;
    font-weight: 500;
}

/* ═══════════════════════════════════════════════════════════
   PLACEHOLDER
   ═══════════════════════════════════════════════════════════ */
.upload-placeholder {
    background: var(--bg-card);
    border: 3px dashed var(--border);
    border-radius: 20px;
    padding: 4rem 2rem;
    text-align: center;
    margin-top: 2rem;
    transition: all 0.3s ease;
}

.upload-placeholder:hover {
    border-color: var(--primary);
    background: var(--bg-elevated);
    box-shadow: var(--shadow-lg);
}

.upload-placeholder .icon { 
    font-size: 4rem; 
    margin-bottom: 1rem;
    opacity: 0.6;
}

.upload-placeholder h3 { 
    color: var(--text-primary) !important; 
    font-weight: 600; 
    margin-top: 1rem;
    font-size: 1.3rem;
}

.upload-placeholder p { 
    color: var(--text-muted) !important; 
    font-size: 0.95rem; 
    margin-top: 0.8rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

/* ═══════════════════════════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════════════════════════ */
.stButton > button {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%) !important;
    color: white !important;
    border: none !important;
    padding: 0.8rem 2rem !important;
    border-radius: 12px !important;
    font-size: 1rem !important;
    font-weight: 600 !important;
    box-shadow: var(--shadow) !important;
    transition: all 0.3s ease !important;
}

.stButton > button:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%) !important;
    box-shadow: var(--shadow-lg) !important;
    transform: translateY(-2px) !important;
}

.stLinkButton > a {
    background: linear-gradient(135deg, var(--secondary) 0%, #059669 100%) !important;
    color: white !important;
    border: none !important;
    border-radius: 12px !important;
    font-weight: 600 !important;
    text-decoration: none !important;
    padding: 0.8rem 2rem !important;
    box-shadow: var(--shadow) !important;
    transition: all 0.3s ease !important;
    display: inline-block !important;
}

.stLinkButton > a:hover {
    background: linear-gradient(135deg, #059669 0%, var(--secondary) 100%) !important;
    box-shadow: var(--shadow-lg) !important;
    transform: translateY(-2px) !important;
}

/* ═══════════════════════════════════════════════════════════
   TABS
   ═══════════════════════════════════════════════════════════ */
.stTabs [data-baseweb="tab-list"] { 
    gap: 8px;
    background: var(--bg-elevated);
    padding: 0.5rem;
    border-radius: 12px;
}

.stTabs [data-baseweb="tab"] {
    background: transparent !important;
    border: none !important;
    border-radius: 8px !important;
    color: var(--text-muted) !important;
    font-size: 0.9rem !important;
    font-weight: 600 !important;
    padding: 0.6rem 1.2rem !important;
    transition: all 0.2s ease !important;
}

.stTabs [data-baseweb="tab"]:hover {
    background: var(--bg-card) !important;
    color: var(--primary) !important;
}

.stTabs [aria-selected="true"] {
    background: var(--primary) !important;
    color: white !important;
    box-shadow: var(--shadow-sm) !important;
}

/* ═══════════════════════════════════════════════════════════
   SIDEBAR
   ═══════════════════════════════════════════════════════════ */
section[data-testid="stSidebar"] {
    background: var(--bg-card) !important;
    border-right: 1px solid var(--border) !important;
}

section[data-testid="stSidebar"] > div {
    padding-top: 2rem !important;
}

section[data-testid="stSidebar"] h3 {
    color: var(--text-primary) !important;
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
    padding: 0 0.5rem;
}

section[data-testid="stSidebar"] .stSelectbox label {
    color: var(--text-primary) !important;
    font-weight: 600 !important;
    font-size: 0.85rem !important;
}

section[data-testid="stSidebar"] .stExpander {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 10px;
    margin-bottom: 0.5rem;
    box-shadow: var(--shadow-sm);
}

section[data-testid="stSidebar"] .stExpander:hover {
    box-shadow: var(--shadow);
    border-color: var(--border-light);
}

/* Hide tooltips globally */
[data-testid="stTooltipIcon"] {
    display: none !important;
    visibility: hidden !important;
}

.stTooltipIcon {
    display: none !important;
    visibility: hidden !important;
}

/* Hide all title tooltips */
[title] {
    position: relative !important;
}

[title]:hover::after,
[title]:hover::before {
    display: none !important;
    content: none !important;
}

/* Specifically target keyboard_double tooltip */
[title="keyboard_double"],
[aria-label="keyboard_double"],
button[title="keyboard_double"],
div[title="keyboard_double"],
span[title="keyboard_double"] {
    pointer-events: auto !important;
}

[title="keyboard_double"]::after,
[title="keyboard_double"]::before {
    display: none !important;
    visibility: hidden !important;
    content: none !important;
}

/* Hide Streamlit's built-in tooltips */
.stTooltip {
    display: none !important;
}

div[data-baseweb="tooltip"] {
    display: none !important;
}

/* Remove title attribute display */
button::after,
div::after,
span::after,
section::after {
    content: none !important;
}

/* ═══════════════════════════════════════════════════════════
   FILE UPLOADER
   ═══════════════════════════════════════════════════════════ */
.stFileUploader {
    background: var(--bg-card);
    border: 2px dashed var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s ease;
}

.stFileUploader:hover {
    border-color: var(--primary);
    background: var(--bg-elevated);
}

/* ═══════════════════════════════════════════════════════════
   MAP & IMAGE CONTAINERS
   ═══════════════════════════════════════════════════════════ */
.map-container {
    border: 2px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    margin: 1rem 0;
}

.image-container {
    border: 2px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    background: var(--bg-elevated);
}

/* ═══════════════════════════════════════════════════════════
   CHART LEGEND
   ═══════════════════════════════════════════════════════════ */
.chart-legend {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    font-size: 0.85rem;
    margin-top: 1rem;
    padding: 1rem;
    background: var(--bg-elevated);
    border-radius: 12px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--text-secondary) !important;
}