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

:root {
    /* Color Palette */
    --primary-color: #3b82f6;
    --primary-dark: #2563eb;
    --primary-light: #60a5fa;
    --secondary-color: #8b5cf6;
    --accent-color: #06b6d4;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    
    /* Neutral Colors */
    --white: #ffffff;
    --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;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-card: linear-gradient(145deg, rgba(255,255,255,0.1), rgba(255,255,255,0.05));
    
    /* Spacing - Consolidated */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Shadows - Consolidated */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Border Radius - Consolidated */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Transitions - Consolidated */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

/* Mobile-first base styles */
html {
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--gray-800);
    background: var(--gray-50);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
    width: 100%;
}

/* Navigation - Enhanced Mobile */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--gray-200);
    z-index: 1000;
    transition: var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px; /* Reduced for mobile */
    width: 100%;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 700;
    font-size: var(--font-size-lg);
    color: var(--primary-color);
}

.brand-icon {
    width: 32px;
    height: 32px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-base);
}

.nav-menu {
    display: flex;
    gap: var(--spacing-lg);
}

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

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

.nav-link.active {
    color: var(--primary-color);
    background: rgba(59, 130, 246, 0.1);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 3px;
    padding: var(--spacing-xs);
}

.nav-toggle span {
    width: 20px;
    height: 2px;
    background: var(--gray-600);
    border-radius: 1px;
    transition: var(--transition-fast);
}

/* Mobile Navigation - Enhanced */
@media (max-width: 768px) {
    .nav-container {
        height: 60px;
        padding: 0 var(--spacing-sm);
    }
    
    .nav-brand {
        font-size: var(--font-size-base);
    }
    
    .brand-icon {
        width: 28px;
        height: 28px;
        font-size: var(--font-size-sm);
    }
    
    .nav-menu {
        position: fixed;
        top: 60px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 60px);
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding: var(--spacing-xl) 0;
        gap: var(--spacing-md);
        transition: left var(--transition-normal);
        box-shadow: var(--shadow-lg);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .nav-link {
        padding: var(--spacing-md) var(--spacing-lg);
        width: 90%;
        max-width: 300px;
        text-align: center;
        font-size: var(--font-size-base);
        border-bottom: 1px solid var(--gray-100);
    }
    
    .nav-link:last-child {
        border-bottom: none;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 0 var(--spacing-xs);
    }
    
    .nav-brand {
        font-size: var(--font-size-sm);
    }
    
    .nav-menu {
        padding: var(--spacing-lg) 0;
    }
    
    .nav-link {
        width: 95%;
        padding: var(--spacing-md) var(--spacing-md);
        font-size: var(--font-size-sm);
    }
}

/* Hero Section - Enhanced Mobile */
.hero {
    min-height: 100vh;
    background: var(--gradient-hero);
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 60px; /* Account for fixed navbar */
    /* flex-direction: row; */
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.1;
}

.floating-particles {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(255,255,255,0.3) 2px, transparent 2px),
        radial-gradient(circle at 80% 20%, rgba(255,255,255,0.3) 2px, transparent 2px),
        radial-gradient(circle at 40% 40%, rgba(255,255,255,0.2) 1px, transparent 1px);
    background-size: 100px 100px, 150px 150px, 80px 80px;
    animation: float 20s infinite linear;
}

@keyframes float {
    0% { transform: translateY(0px) rotate(0deg); }
    100% { transform: translateY(-100px) rotate(360deg); }
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
    position: relative;
    z-index: 2;
    text-align: center;
}

.hero-title {
    font-size: clamp(1.875rem, 5vw, 3rem);
    font-weight: 700;
    line-height: 1.2;
    color: white;
    margin-bottom: var(--spacing-md);
}

.gradient-text {
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1rem, 3vw, 1.125rem);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
}

.btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--font-size-sm);
    transition: var(--transition-normal);
    border: none;
    cursor: pointer;
    width: 100%;
}

.btn-primary {
    background: var(--white);
    color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
}

.weather-card-preview {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-xl);
    animation: cardFloat 6s ease-in-out infinite;
    width: 100%;
    max-width: 300px;
}

@keyframes cardFloat {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.preview-icon {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-lg);
}

.preview-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: white;
    font-size: var(--font-size-xs);
}

.status-dot {
    width: 6px;
    height: 6px;
    background: var(--success-color);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.preview-data {
    text-align: center;
}

.preview-temp {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.temp-value {
    font-size: clamp(2rem, 8vw, 3rem);
    font-weight: 700;
    color: white;
}

.temp-unit {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.8);
}

.preview-humidity {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--font-size-base);
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    border: 2px solid white;
    border-top: none;
    border-right: none;
    transform: rotate(-45deg);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0) rotate(-45deg); }
    40% { transform: translateY(-10px) rotate(-45deg); }
    60% { transform: translateY(-5px) rotate(-45deg); }
}

/* Tablet Hero Layout */
@media (min-width: 769px) and (max-width: 1024px) {
    .hero-content {
        flex-direction: row;
        gap: var(--spacing-2xl);
        text-align: left;
        padding: 0 var(--spacing-md);
    }
    
    .hero-buttons {
        flex-direction: row;
        width: auto;
        max-width: none;
    }
    
    .btn {
        width: auto;
    }
    
    .weather-card-preview {
        max-width: 350px;
    }
}

/* Desktop Hero Layout */
@media (min-width: 1025px) {
    .hero-content {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-3xl);
        text-align: left;
    }
    
    .hero-buttons {
        flex-direction: row;
        width: auto;
        max-width: none;
    }
    
    .btn {
        width: auto;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
}

/* Section Styles - Mobile First */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    padding: 0 var(--spacing-sm);
}

.section-title {
    font-size: clamp(1.5rem, 4vw, 2.25rem);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: var(--font-size-base);
    color: var(--gray-600);
    max-width: 100%;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* Dashboard Section - Enhanced Mobile */
.dashboard {
    padding: var(--spacing-2xl) 0;
    background: var(--white);
}

.status-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
    padding: 0 var(--spacing-sm);
}

.status-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-200);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.status-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.status-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.temperature-card::before { background: linear-gradient(135deg, #f59e0b, #d97706); }
.humidity-card::before { background: linear-gradient(135deg, #06b6d4, #0891b2); }
.heat-index-card::before { background: linear-gradient(135deg, #ef4444, #dc2626); }
.location-card::before { background: linear-gradient(135deg, #10b981, #059669); }

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.card-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
    color: white;
    flex-shrink: 0;
}

.temperature-card .card-icon { background: linear-gradient(135deg, #f59e0b, #d97706); }
.humidity-card .card-icon { background: linear-gradient(135deg, #06b6d4, #0891b2); }
.heat-index-card .card-icon { background: linear-gradient(135deg, #ef4444, #dc2626); }
.location-card .card-icon { background: linear-gradient(135deg, #10b981, #059669); }

.card-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--gray-400);
}

.status-indicator.normal { background: var(--success-color); }
.status-indicator.warning { background: var(--warning-color); }
.status-indicator.danger { background: var(--error-color); }
.status-indicator.active { background: var(--success-color); animation: pulse 2s infinite; }

.status-text {
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--gray-600);
}

.metric-value {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
}

.value {
    font-size: clamp(2rem, 6vw, 2.5rem);
    font-weight: 700;
    color: var(--gray-900);
}

.unit {
    font-size: var(--font-size-base);
    color: var(--gray-500);
}

.metric-label {
    font-size: var(--font-size-xs);
    color: var(--gray-600);
    margin-bottom: var(--spacing-xs);
}

.metric-trend {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.trend-icon {
    font-size: var(--font-size-xs);
    color: var(--success-color);
}

.trend-text {
    font-size: var(--font-size-xs);
    color: var(--gray-500);
}

.location-text {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--gray-900);
}

.coordinates {
    font-size: var(--font-size-xs);
    color: var(--gray-500);
    margin-top: var(--spacing-xs);
}

/* Tablet Dashboard */
@media (min-width: 769px) {
    .status-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: var(--spacing-xl);
        padding: 0 var(--spacing-md);
    }
    
    .status-card {
        padding: var(--spacing-xl);
    }
    
    .card-icon {
        width: 50px;
        height: 50px;
        font-size: var(--font-size-xl);
    }
}

/* Desktop Dashboard */
@media (min-width: 1025px) {
    .dashboard {
        padding: var(--spacing-3xl) 0;
    }
    
    .status-grid {
        margin-bottom: var(--spacing-3xl);
    }
}

/* Alert System - Mobile First */
.alert-system {
    background: var(--gray-50);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    border: 1px solid var(--gray-200);
    margin: var(--spacing-lg) var(--spacing-sm);
}

.alert-header {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    align-items: flex-start;
}

.alert-header h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--gray-900);
}

.alert-toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    width: 100%;
    justify-content: space-between;
}

.toggle-label {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
}

.toggle-switch {
    width: 44px;
    height: 24px;
    background: var(--gray-300);
    border-radius: 12px;
    position: relative;
    cursor: pointer;
    transition: var(--transition-fast);
}

.toggle-switch.active {
    background: var(--primary-color);
}

.toggle-slider {
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    position: absolute;
    top: 2px;
    left: 2px;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.toggle-switch.active .toggle-slider {
    transform: translateX(20px);
}

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

.alert-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: white;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    transition: var(--transition-fast);
}

.alert-item:hover {
    box-shadow: var(--shadow-md);
}

.alert-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    color: var(--gray-600);
    align-self: flex-start;
}

.alert-content {
    flex: 1;
}

.alert-title {
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-sm);
}

.alert-message {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
}

.alert-time {
    font-size: var(--font-size-xs);
    color: var(--gray-400);
}

/* Tablet Alerts */
@media (min-width: 769px) {
    .alert-system {
        margin: var(--spacing-xl) auto;
        max-width: 800px;
    }
    
    .alert-header {
        flex-direction: row;
        justify-content: space-between;
    }
    
    .alert-toggle {
        width: auto;
        justify-content: flex-start;
    }
    
    .alert-item {
        flex-direction: row;
        align-items: flex-start;
    }
}

/* Analytics Section - Mobile First */
.analytics {
    padding: var(--spacing-2xl) 0;
    background: var(--gray-50);
}

.charts-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    padding: 0 var(--spacing-sm);
}

.chart-container {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-200);
    margin-bottom: var(--spacing-lg);
}

.chart-header {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    align-items: flex-start;
}

.chart-header h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--gray-900);
}

.chart-controls {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.chart-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--gray-300);
    background: white;
    color: var(--gray-600);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    cursor: pointer;
    transition: var(--transition-fast);
    white-space: nowrap;
}

.chart-btn:hover {
    background: var(--gray-50);
}

.chart-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.chart-wrapper {
    height: 250px;
    position: relative;
    width: 80%;
}

/* Tablet Analytics */
@media (min-width: 69px) {
    .charts-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: var(--spacing-xl);
        padding: 0 var(--spacing-md);
    }
    
    .chart-header {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
    
    .chart-container {
        padding: var(--spacing-xl);
        margin-bottom: 0;
    }
    
    .chart-wrapper {
        height: 500px;
    }
}

/* How It Works Section - Mobile First */
.how-it-works {
    padding: var(--spacing-2xl) 0;
    background: white;
}

.workflow-diagram {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
    padding: 0 var(--spacing-sm);
}

.workflow-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    position: relative;
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
    transition: var(--transition-normal);
    text-align: center;
}

.workflow-step:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.step-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-xl);
    flex-shrink: 0;
    position: relative;
}

.step-icon::after {
    content: attr(data-step);
    position: absolute;
    top: -8px;
    right: -8px;
    width: 20px;
    height: 20px;
    background: var(--warning-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: white;
}

.workflow-step[data-step="1"] .step-icon::after { content: "1"; }
.workflow-step[data-step="2"] .step-icon::after { content: "2"; }
.workflow-step[data-step="3"] .step-icon::after { content: "3"; }
.workflow-step[data-step="4"] .step-icon::after { content: "4"; }
.workflow-step[data-step="5"] .step-icon::after { content: "5"; }

.step-content h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-xs);
}

.step-content p {
    color: var(--gray-600);
    line-height: 1.6;
    font-size: var(--font-size-sm);
}

.step-connector {
    display: none; /* Hide on mobile */
}

.tech-stack {
    text-align: center;
    padding: 0 var(--spacing-sm);
}

.tech-stack h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-lg);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: var(--spacing-md);
}

.tech-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    transition: var(--transition-normal);
}

.tech-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    background: white;
}

.tech-item i {
    font-size: var(--font-size-xl);
    color: var(--primary-color);
}

.tech-item span {
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--gray-700);
}

/* Tablet How It Works */
@media (min-width: 769px) {
    .workflow-step {
        flex-direction: row;
        text-align: left;
        gap: var(--spacing-xl);
    }
    
    .step-icon {
        width: 70px;
        height: 70px;
        font-size: var(--font-size-2xl);
    }
    
    .step-content h3 {
        font-size: var(--font-size-xl);
    }
    
    .step-content p {
        font-size: var(--font-size-base);
    }
    
    .tech-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        gap: var(--spacing-lg);
    }
    
    .tech-item {
        padding: var(--spacing-lg);
    }
}

/* About Section - Mobile First */
.about {
    padding: var(--spacing-2xl) 0;
    background: var(--gray-50);
}

.about-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    align-items: center;
    padding: 0 var(--spacing-sm);
    text-align: center;
}

.about-text h2 {
    font-size: clamp(1.5rem, 4vw, 2.25rem);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-lg);
}

.about-description {
    font-size: var(--font-size-base);
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: var(--spacing-xl);
    max-width: 100%;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    width: 100%;
}

.feature-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
    padding: var(--spacing-sm);
}

.feature-item i {
    width: 36px;
    height: 36px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-base);
    flex-shrink: 0;
    margin-top: 2px;
}

.feature-item h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-xs);
}

.feature-item p {
    color: var(--gray-600);
    font-size: var(--font-size-sm);
}

.about-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.visual-container {
    position: relative;
    width: 280px;
    height: 280px;
    max-width: 90vw;
}

.floating-card {
    position: absolute;
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-sm);
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    border: 1px solid var(--gray-200);
    transition: var(--transition-normal);
    font-size: var(--font-size-xs);
}

.floating-card:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
}

.card-1 {
    top: 10px;
    left: 10px;
    width: 80px;
    animation: float1 6s ease-in-out infinite;
}

.card-2 {
    top: 40px;
    right: 10px;
    width: 70px;
    animation: float2 6s ease-in-out infinite 2s;
}

.card-3 {
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 90px;
    animation: float3 6s ease-in-out infinite 4s;
}

@keyframes float1 {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
}

@keyframes float2 {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

@keyframes float3 {
    0%, 100% { transform: translateX(-50%) translateY(0px); }
    50% { transform: translateX(-50%) translateY(-10px); }
}

.floating-card i {
    font-size: var(--font-size-base);
    color: var(--primary-color);
}

.floating-card span {
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--gray-700);
}

/* Tablet About */
@media (min-width: 769px) {
    .about-content {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-2xl);
        text-align: left;
        padding: 0 var(--spacing-md);
    }
    
    .about-text {
        text-align: left;
    }
    
    .about-description {
        max-width: 500px;
    }
    
    .visual-container {
        width: 300px;
        height: 300px;
    }
    
    .floating-card {
        font-size: var(--font-size-sm);
    }
    
    .card-1, .card-2, .card-3 {
        width: auto;
    }
}

/* Footer - Enhanced Mobile */
.footer {
    background: var(--gray-900);
    color: white;
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    align-items: center;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    padding: 0 var(--spacing-sm);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    font-size: var(--font-size-lg);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: center;
}

.footer-links a {
    color: var(--gray-400);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: white;
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: center;
}

.social-link {
    width: 36px;
    height: 36px;
    background: var(--gray-800);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    text-decoration: none;
    transition: var(--transition-fast);
}

.social-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--gray-800);
    padding: var(--spacing-md) var(--spacing-sm);
}

.footer-bottom p {
    color: var(--gray-400);
    font-size: var(--font-size-xs);
}

/* Tablet Footer */
@media (min-width: 769px) {
    .footer-content {
        flex-direction: row;
        justify-content: space-between;
        padding: 0 var(--spacing-md);
    }
    
    .footer-links {
        flex-direction: row;
        gap: var(--spacing-xl);
    }
    
    .footer-brand {
        font-size: var(--font-size-xl);
    }
    
    .social-link {
        width: 40px;
        height: 40px;
    }
}

/* Small Mobile Optimizations */
@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-xs);
    }
    
    .hero {
        padding-top: 60px;
        min-height: calc(100vh - 60px);
    }
    
    .section-header,
    .dashboard,
    .analytics,
    .how-it-works,
    .about {
        padding-left: var(--spacing-xs);
        padding-right: var(--spacing-xs);
    }
    
    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .status-card,
    .chart-container,
    .alert-system {
        padding: var(--spacing-md);
        margin: var(--spacing-sm);
    }
    
    .value {
        font-size: 1.75rem;
    }
    
    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }
    
    .workflow-step {
        padding: var(--spacing-md);
    }
    
    .step-icon {
        width: 50px;
        height: 50px;
        font-size: var(--font-size-lg);
    }
    
    .visual-container {
        width: 250px;
        height: 250px;
    }
}

/* Utility Classes - Enhanced */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus States */
.btn:focus,
.nav-link:focus,
.chart-btn:focus,
.social-link:focus,
.toggle-switch:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .navbar,
    .hero,
    .footer,
    .scroll-indicator {
        display: none;
    }
    
    .dashboard,
    .analytics,
    .about {
        page-break-inside: avoid;
        break-inside: avoid;
    }
    
    .container {
        max-width: none;
        padding: 0;
    }
}

/* High DPI Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .status-indicator,
    .status-dot {
        transform: scale(0.8);
    }
}