/* LayerLytix Landing Page Styles
 * Brand: Analytics aggregation platform
 * Colors: Light blue/green, clean, professional
 * Font: Poppins
 */

/* ========================================
   CSS VARIABLES
   ======================================== */
:root {
    /* Brand Colors */
    --color-primary: #66bb6a;
    --color-primary-dark: #2e7d32;
    --color-primary-light: #81c784;
    --color-secondary: #1976d2;
    --color-accent: #6108d5;

    /* Background Colors */
    --bg-gradient-start: #dbeafe;
    --bg-gradient-end: #ffffff;
    --bg-white: #ffffff;
    --bg-light: #f8fafc;
    --bg-card: #ffffff;

    /* Text Colors */
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-muted: #999999;
    --text-white: #ffffff;

    /* Border Colors */
    --border-light: #e2e8f0;
    --border-medium: #cbd5e1;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 400ms ease;

    /* Container */
    --container-max: 1200px;
    --container-narrow: 800px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-weight: 400;
    line-height: 1.6;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 50%);
    min-height: 100vh;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--color-primary-dark);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary);
}

/* ========================================
   TYPOGRAPHY
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
}

h2 {
    font-size: 2rem;
    font-weight: 600;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: var(--spacing-md);
}

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

.text-muted {
    color: var(--text-secondary);
}

/* ========================================
   LAYOUT
   ======================================== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.container-narrow {
    max-width: var(--container-narrow);
}

.section {
    padding: var(--spacing-3xl) 0;
}

.section-alt {
    background: var(--bg-white);
}

/* ========================================
   HEADER & NAVIGATION
   ======================================== */
.header {
    background: var(--bg-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    max-width: var(--container-max);
    margin: 0 auto;
}

.logo {
    height: 50px;
    width: auto;
}

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

.nav a {
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-secondary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav a:hover {
    color: var(--color-primary-dark);
    background: var(--bg-light);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-primary);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

.hero-logo {
    max-width: 400px;
    margin: 0 auto var(--spacing-xl);
}

.hero h1 {
    font-size: 2.75rem;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
    font-weight: 300;
}

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

/* ========================================
   BUTTONS
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--text-white);
    box-shadow: 0 4px 15px rgba(102, 187, 106, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 187, 106, 0.4);
    color: var(--text-white);
}

.btn-secondary {
    background: var(--bg-white);
    color: var(--color-primary-dark);
    border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
    background: var(--color-primary);
    color: var(--text-white);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border-medium);
}

.btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary-dark);
}

/* ========================================
   FEATURES SECTION
   ======================================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.feature-card {
    background: var(--bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all var(--transition-normal);
}

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

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--color-primary-light) 100%);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.feature-card h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary-dark);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 0;
}

/* ========================================
   HOW IT WORKS
   ======================================== */
.steps {
    display: flex;
    justify-content: center;
    gap: var(--spacing-2xl);
    flex-wrap: wrap;
    margin-top: var(--spacing-2xl);
}

.step {
    flex: 1;
    min-width: 250px;
    max-width: 350px;
    text-align: center;
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--color-primary);
    color: var(--text-white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto var(--spacing-lg);
}

.step h3 {
    margin-bottom: var(--spacing-sm);
}

.step p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Connector line between steps */
.step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 30px;
    right: -30px;
    width: 60px;
    height: 2px;
    background: var(--border-medium);
}

/* ========================================
   INTEGRATIONS
   ======================================== */
.integrations-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-2xl);
    flex-wrap: wrap;
    margin-top: var(--spacing-2xl);
}

.integration-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.integration-logo:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.integration-logo svg {
    width: 48px;
    height: 48px;
}

.integration-logo span {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ========================================
   PRICING SECTION
   ======================================== */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.pricing-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    position: relative;
    transition: all var(--transition-normal);
}

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

.pricing-card.featured {
    border: 2px solid var(--color-primary);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: var(--text-white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.pricing-tier {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-sm);
}

.pricing-price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.pricing-price span {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-secondary);
}

.pricing-features {
    list-style: none;
    margin-bottom: var(--spacing-xl);
    text-align: left;
}

.pricing-features li {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-light);
    font-size: 0.95rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.pricing-features li::before {
    content: '✓';
    color: var(--color-primary);
    font-weight: 700;
}

/* ========================================
   CONTACT FORM
   ======================================== */
.contact-form-wrapper {
    max-width: 600px;
    margin: 0 auto;
    background: var(--bg-card);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

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

.form-label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--border-light);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 1rem;
    transition: all var(--transition-fast);
    background: var(--bg-white);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(102, 187, 106, 0.2);
}

.form-textarea {
    min-height: 150px;
    resize: vertical;
}

.form-submit {
    width: 100%;
    margin-top: var(--spacing-md);
}

.form-note {
    text-align: center;
    margin-top: var(--spacing-md);
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background: var(--text-primary);
    color: var(--text-white);
    padding: var(--spacing-2xl) 0;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.footer-logo {
    height: 40px;
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
}

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

.footer-copy {
    width: 100%;
    text-align: center;
    padding-top: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
}

.footer-copy a {
    color: inherit;
    text-decoration: none;
    cursor: pointer;
}

.footer-copy a:hover {
    color: var(--color-primary-light);
}

/* ========================================
   UTILITIES
   ======================================== */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
}

.section-header h2 {
    margin-bottom: var(--spacing-md);
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

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

    .hero-logo {
        max-width: 280px;
    }

    .nav {
        display: none;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .nav.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-white);
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-md);
    }

    .step:not(:last-child)::after {
        display: none;
    }

    .steps {
        flex-direction: column;
        align-items: center;
    }

    .footer-inner {
        flex-direction: column;
        text-align: center;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-cta {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease forwards;
}

/* Stagger animation delays */
.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }
.animate-delay-4 { animation-delay: 0.4s; }