/**
 * PSMetrics Landing Page - Calendly Inspired Design
 * Modern, professional UI/UX with smooth animations
 */

/* ==================== CSS VARIABLES ==================== */
:root {
    /* Primary Colors - Inspired by Calendly */
    --primary-blue: #006BFF;
    --primary-dark: #0B3558;
    --primary-light: #4A90E2;

    /* Secondary Colors */
    --secondary-purple: #8B5CF6;
    --secondary-green: #10B981;
    --accent-lime: #84CC16;

    /* Neutral Colors */
    --slate-50: #F8FAFC;
    --slate-100: #F1F5F9;
    --slate-200: #E2E8F0;
    --slate-300: #CBD5E1;
    --slate-400: #94A3B8;
    --slate-600: #475569;
    --slate-700: #334155;
    --slate-900: #0F172A;

    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-2xl: 64px;
    --spacing-3xl: 80px;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 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;
    --font-size-6xl: 3.75rem;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.2s ease;
    --transition-slow: 0.3s ease;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-base: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;
}

/* ==================== RESET & BASE STYLES ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    color: var(--slate-700);
    line-height: 1.6;
    background: white;
    overflow-x: hidden;
}

/* ==================== HERO SECTION ==================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #006BFF 0%, #0B3558 100%);
    overflow: hidden;
    padding-top: 80px;
}

/* Animated Background Circles */
.hero::before,
.hero::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    animation: float 20s infinite ease-in-out;
}

.hero::before {
    width: 600px;
    height: 600px;
    top: -300px;
    right: -200px;
    animation-delay: 0s;
}

.hero::after {
    width: 400px;
    height: 400px;
    bottom: -200px;
    left: -100px;
    animation-delay: 2s;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-40px) rotate(5deg); }
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-3xl) var(--spacing-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-full);
    color: white;
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-content h1 {
    font-size: clamp(2.5rem, 5vw, 3.75rem);
    font-weight: 900;
    color: white;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.hero-content h1 .highlight {
    background: linear-gradient(135deg, var(--accent-lime), var(--secondary-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-content p {
    font-size: var(--font-size-xl);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* ==================== BUTTONS ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 14px 28px;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: var(--font-size-base);
    text-decoration: none;
    transition: all var(--transition-base);
    cursor: pointer;
    border: 2px solid transparent;
    white-space: nowrap;
}

.btn-primary {
    background: white;
    color: var(--primary-blue);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

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

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-base);
}

.btn:hover .btn-icon {
    transform: translateX(4px);
}

/* ==================== HERO VISUAL ==================== */
.hero-visual {
    position: relative;
    animation: slideInRight 0.8s ease-out;
}

.hero-card {
    background: white;
    border-radius: var(--radius-2xl);
    padding: var(--spacing-lg);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
    transform: rotate(2deg);
    transition: transform var(--transition-slow);
}

.hero-card:hover {
    transform: rotate(0deg) scale(1.02);
}

.hero-card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--slate-100);
}

.hero-card-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-purple));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
}

.hero-card h3 {
    color: var(--slate-900);
    font-size: var(--font-size-2xl);
    margin: 0;
}

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

.hero-card li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--slate-600);
    font-size: var(--font-size-base);
    padding: var(--spacing-xs) 0;
}

.hero-card li::before {
    content: '✓';
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-purple));
    color: white;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

/* ==================== STATS SECTION ==================== */
.stats-section {
    background: var(--slate-50);
    padding: var(--spacing-3xl) var(--spacing-md);
    border-bottom: 1px solid var(--slate-200);
}

.stats-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-md);
    animation: fadeInUp 0.6s ease-out backwards;
}

.stat-item:nth-child(1) { animation-delay: 0.1s; }
.stat-item:nth-child(2) { animation-delay: 0.2s; }
.stat-item:nth-child(3) { animation-delay: 0.3s; }
.stat-item:nth-child(4) { animation-delay: 0.4s; }

.stat-number {
    font-size: var(--font-size-5xl);
    font-weight: 900;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-xs);
    line-height: 1;
}

.stat-label {
    font-size: var(--font-size-base);
    color: var(--slate-600);
    font-weight: 500;
}

/* ==================== FEATURES SECTION ==================== */
.features-section {
    padding: var(--spacing-3xl) var(--spacing-md);
    background: white;
}

.section-header {
    max-width: 800px;
    margin: 0 auto var(--spacing-2xl);
    text-align: center;
}

.section-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(0, 107, 255, 0.1);
    color: var(--primary-blue);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
}

.section-header h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
    color: var(--slate-900);
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

.section-header p {
    font-size: var(--font-size-lg);
    color: var(--slate-600);
    line-height: 1.8;
}

.features-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    background: white;
    border: 2px solid var(--slate-100);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    transition: all var(--transition-slow);
    animation: fadeInUp 0.6s ease-out backwards;
}

.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }
.feature-card:nth-child(4) { animation-delay: 0.4s; }
.feature-card:nth-child(5) { animation-delay: 0.5s; }
.feature-card:nth-child(6) { animation-delay: 0.6s; }

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-blue);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-purple));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
    transition: transform var(--transition-slow);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

.feature-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--slate-900);
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    color: var(--slate-600);
    line-height: 1.7;
    font-size: var(--font-size-base);
}

/* ==================== HOW IT WORKS SECTION ==================== */
.how-it-works {
    background: var(--slate-50);
    padding: var(--spacing-3xl) var(--spacing-md);
}

.steps-container {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    gap: var(--spacing-xl);
}

.step-item {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-base);
    animation: fadeInUp 0.6s ease-out backwards;
}

.step-item:nth-child(1) { animation-delay: 0.1s; }
.step-item:nth-child(2) { animation-delay: 0.2s; }
.step-item:nth-child(3) { animation-delay: 0.3s; }

.step-number {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-purple));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
    font-weight: 900;
    color: white;
}

.step-content h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--slate-900);
    margin-bottom: var(--spacing-xs);
}

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

/* ==================== PRODUCTS PREVIEW ==================== */
.products-preview {
    padding: var(--spacing-3xl) var(--spacing-md);
    background: white;
}

.products-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.product-card {
    background: white;
    border: 2px solid var(--slate-100);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-slow);
    animation: fadeInUp 0.6s ease-out backwards;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-blue);
}

.product-image {
    width: 100%;
    height: 220px;
    object-fit: cover;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-purple));
}

.product-content {
    padding: var(--spacing-md);
}

.product-category {
    display: inline-block;
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    color: var(--primary-blue);
    background: rgba(0, 107, 255, 0.1);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.05em;
}

.product-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--slate-900);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.product-description {
    font-size: var(--font-size-sm);
    color: var(--slate-600);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
    border-top: 2px solid var(--slate-100);
}

.product-price {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.price-old {
    font-size: var(--font-size-sm);
    text-decoration: line-through;
    color: var(--slate-400);
}

.price-new {
    font-size: var(--font-size-3xl);
    font-weight: 900;
    color: var(--primary-blue);
}

.product-btn {
    padding: 12px 24px;
    background: var(--primary-blue);
    color: white;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--font-size-sm);
    transition: all var(--transition-base);
}

.product-btn:hover {
    background: var(--primary-dark);
    transform: scale(1.05);
}

/* ==================== CTA SECTION ==================== */
.cta-section {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-dark));
    padding: var(--spacing-3xl) var(--spacing-md);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
}

.cta-container {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.cta-container h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
    color: white;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.cta-container p {
    font-size: var(--font-size-xl);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

/* ==================== ANIMATIONS ==================== */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

/* ==================== RESPONSIVE DESIGN ==================== */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .hero-visual {
        order: -1;
    }
}

@media (max-width: 768px) {
    .hero {
        padding-top: 60px;
    }

    .hero-container {
        padding: var(--spacing-xl) var(--spacing-sm);
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-content p {
        font-size: var(--font-size-base);
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .features-grid,
    .products-grid {
        grid-template-columns: 1fr;
    }

    .step-item {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .step-number {
        margin: 0 auto var(--spacing-sm);
    }

    .stats-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 1.75rem;
    }

    .section-header h2 {
        font-size: 1.75rem;
    }

    .stat-number {
        font-size: var(--font-size-4xl);
    }
}

/* ==================== UTILITY CLASSES ==================== */
.text-center {
    text-align: center;
}

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

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

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