/* ===================================
   SafeSphere - Main Styles
   =================================== */

/* ===================================
   Reset & Base Styles
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Primary Colors */
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    
    /* Status Colors */
    --success-color: #10b981;
    --success-light: #d1fae5;
    --warning-color: #f59e0b;
    --warning-light: #fef3c7;
    --danger-color: #ef4444;
    --danger-light: #fee2e2;
    
    /* Neutral Colors */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--gray-800);
    background-color: var(--gray-50);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===================================
   Header & Navigation
   =================================== */
.header {
    background: white;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo i {
    font-size: 2rem;
}

.nav {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-link {
    color: var(--gray-600);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
    background: var(--gray-100);
}

.nav-link.admin-link {
    background: var(--primary-color);
    color: white;
}

.nav-link.admin-link:hover {
    background: var(--primary-dark);
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: var(--spacing-xl) 0;
    color: white;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero-content {
    animation: fadeInUp 0.8s ease;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: rgba(255, 255, 255, 0.2);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 2rem;
    font-size: 0.875rem;
    margin-bottom: var(--spacing-md);
    backdrop-filter: blur(10px);
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    line-height: 1.1;
}

.hero-tagline {
    font-size: 1.75rem;
    font-weight: 500;
    margin-bottom: var(--spacing-md);
    opacity: 0.95;
}

.hero-description {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.shield-animation {
    width: 300px;
    height: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    backdrop-filter: blur(10px);
    animation: float 3s ease-in-out infinite;
}

.shield-animation i {
    font-size: 150px;
    color: white;
}

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===================================
   Buttons
   =================================== */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: white;
    color: var(--primary-color);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.125rem;
    transition: var(--transition-normal);
    border: none;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary {
    background: var(--gray-200);
    color: var(--gray-700);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.btn-secondary:hover {
    background: var(--gray-300);
}

.btn-analyze {
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 1.125rem;
    border: none;
    cursor: pointer;
    transition: var(--transition-normal);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    box-shadow: var(--shadow-md);
}

.btn-analyze:hover:not(:disabled) {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-analyze:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-clear {
    background: white;
    color: var(--gray-700);
    border: 2px solid var(--gray-300);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.btn-clear:hover {
    border-color: var(--gray-400);
    background: var(--gray-50);
}

/* ===================================
   How It Works Section
   =================================== */
.how-it-works {
    padding: var(--spacing-xl) 0;
    background: white;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--gray-900);
}

.section-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-lg);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.step-card {
    text-align: center;
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    background: var(--gray-50);
    transition: var(--transition-normal);
}

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

.step-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-size: 2rem;
}

.step-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--gray-900);
}

.step-card p {
    color: var(--gray-600);
    line-height: 1.7;
}

/* ===================================
   Analyzer Section
   =================================== */
.analyzer {
    padding: var(--spacing-xl) 0;
    background: var(--gray-50);
}

.analyzer-container {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    margin-top: var(--spacing-lg);
}

.input-section {
    margin-bottom: var(--spacing-lg);
}

.input-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    color: var(--gray-800);
}

.content-input {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-lg);
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    resize: vertical;
    transition: var(--transition-fast);
}

.content-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.input-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

/* Loading State */
.loading-state {
    text-align: center;
    padding: var(--spacing-xl);
}

.loader {
    width: 50px;
    height: 50px;
    border: 4px solid var(--gray-200);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    margin: 0 auto var(--spacing-md);
    animation: spin 1s linear infinite;
}

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

/* Results Section */
.results-section {
    animation: fadeInUp 0.5s ease;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--gray-200);
}

.results-header h3 {
    font-size: 1.75rem;
    color: var(--gray-900);
}

.risk-display {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: var(--spacing-lg);
    align-items: center;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
}

.risk-display.safe {
    background: var(--success-light);
    border: 2px solid var(--success-color);
}

.risk-display.low {
    background: #dbeafe;
    border: 2px solid #3b82f6;
}

.risk-display.medium {
    background: var(--warning-light);
    border: 2px solid var(--warning-color);
}

.risk-display.high {
    background: var(--danger-light);
    border: 2px solid var(--danger-color);
}

.risk-icon-wrapper {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2.5rem;
}

.risk-display.safe .risk-icon-wrapper {
    background: var(--success-color);
    color: white;
}

.risk-display.low .risk-icon-wrapper {
    background: #3b82f6;
    color: white;
}

.risk-display.medium .risk-icon-wrapper {
    background: var(--warning-color);
    color: white;
}

.risk-display.high .risk-icon-wrapper {
    background: var(--danger-color);
    color: white;
}

.risk-info h4 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-xs);
}

.risk-display.safe h4 { color: var(--success-color); }
.risk-display.low h4 { color: #3b82f6; }
.risk-display.medium h4 { color: var(--warning-color); }
.risk-display.high h4 { color: var(--danger-color); }

.risk-description {
    color: var(--gray-700);
    line-height: 1.6;
}

/* Score Circle */
.risk-score {
    position: relative;
}

.score-circle {
    position: relative;
    width: 120px;
    height: 120px;
}

.score-circle svg {
    transform: rotate(-90deg);
}

.score-bg {
    fill: none;
    stroke: var(--gray-200);
    stroke-width: 8;
}

.score-progress {
    fill: none;
    stroke-width: 8;
    stroke-linecap: round;
    transition: stroke-dashoffset 1s ease;
    stroke-dasharray: 314;
}

.score-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.score-text span {
    display: block;
}

#scoreValue {
    font-size: 2rem;
    font-weight: 700;
}

.score-label {
    font-size: 0.75rem;
    color: var(--gray-600);
    text-transform: uppercase;
}

/* Detailed Analysis */
.detailed-analysis,
.recommendations {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
}

.detailed-analysis h4,
.recommendations h4 {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--gray-900);
}

.analysis-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.detail-item {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: white;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary-color);
}

.detail-item i {
    color: var(--primary-color);
    margin-top: 2px;
}

.recommendations-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.recommendations-list li {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: white;
    border-radius: var(--radius-md);
}

.recommendations-list i {
    color: var(--success-color);
    margin-top: 2px;
}

/* ===================================
   Safety Tips Section
   =================================== */
.safety-tips {
    padding: var(--spacing-xl) 0;
    background: white;
}

.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.tip-card {
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    transition: var(--transition-normal);
    border: 2px solid transparent;
}

.tip-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.tip-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.tip-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--gray-900);
}

.tip-card p {
    color: var(--gray-600);
    line-height: 1.7;
}

/* ===================================
   Statistics Section
   =================================== */
.statistics {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.stat-card {
    text-align: center;
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    transition: var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.2);
}

.stat-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.stat-value {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 1.125rem;
    opacity: 0.9;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--gray-700);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: var(--spacing-md);
}

.footer-logo i {
    font-size: 2rem;
    color: var(--primary-light);
}

.footer-description {
    line-height: 1.7;
    opacity: 0.8;
}

.footer-section h4 {
    color: white;
    margin-bottom: var(--spacing-md);
    font-size: 1.125rem;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a {
    color: var(--gray-300);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--primary-light);
    padding-left: var(--spacing-xs);
}

.footer-bottom {
    margin-top: var(--spacing-lg);
}

.disclaimer {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.disclaimer i {
    font-size: 1.5rem;
    color: var(--warning-color);
    flex-shrink: 0;
}

.disclaimer p {
    line-height: 1.7;
    font-size: 0.875rem;
}

.footer-credits {
    text-align: center;
    opacity: 0.6;
    font-size: 0.875rem;
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 968px) {
    .hero .container {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-image {
        display: none;
    }
    
    .steps-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .risk-display {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .risk-score {
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .nav {
        flex-wrap: wrap;
        gap: var(--spacing-sm);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-tagline {
        font-size: 1.25rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .input-actions {
        flex-direction: column;
    }
    
    .btn-analyze,
    .btn-clear {
        width: 100%;
        justify-content: center;
    }
}

/* ===================================
   Additional Responsive Design
   =================================== */

@media (max-width: 968px) {
    .risk-icon-wrapper {
        margin: 0 auto;
    }
    
    .risk-info {
        text-align: center;
    }
}

@media (max-width: 768px) {
    .header .container {
        flex-wrap: wrap;
    }
    
    .nav {
        order: 3;
        width: 100%;
        margin-top: var(--spacing-sm);
        justify-content: space-between;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none; /* Firefox */
    }
    
    .nav::-webkit-scrollbar {
        display: none; /* Safari and Chrome */
    }

    .nav-link {
        flex-shrink: 0;
    }
    
    .analyzer-container {
        padding: var(--spacing-lg);
    }
    
    .risk-display {
        padding: var(--spacing-md);
    }
    
    .results-header h3 {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .hero-title {
        font-size: 2rem;
    }
    
    .hero-tagline {
        font-size: 1.1rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .risk-info h4 {
        font-size: 1.5rem;
    }

    .score-circle {
        width: 100px;
        height: 100px;
    }

    #scoreValue {
        font-size: 1.75rem;
    }
}