/* ==========================================================================
   KEEPS BRAND PROTECTION - Styles
   Mobile-First Responsive Design
   ========================================================================== */

/* CSS Variables for consistent theming */
:root {
    --primary-color: #1a56db;
    --primary-dark: #1e429f;
    --secondary-color: #0e7490;
    --accent-color: #dc2626;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-dark: #111827;
    --border-color: #e5e7eb;
    --success-color: #059669;
    --error-color: #dc2626;
    --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);
    --transition: all 0.3s ease;
    --max-width: 1200px;
}

/* ==========================================================================
   Base Styles & Reset
   ========================================================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
}

body.menu-open {
    overflow: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

h1 {
    font-size: 2rem;
}

h2 {
    font-size: 1.75rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
}

/* ==========================================================================
   Layout Utilities
   ========================================================================== */

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.25rem;
}

.section-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.125rem;
    max-width: 700px;
    margin: 0 auto 3rem;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-block;
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border-radius: 0.5rem;
    transition: var(--transition);
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

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

.btn-submit {
    width: 100%;
    margin-top: 1rem;
}

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

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.site-header.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    max-width: var(--max-width);
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--primary-color);
}

.logo-text {
    font-weight: 800;
    letter-spacing: 0.5px;
}

/* Mobile menu toggle */
.mobile-menu-toggle {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
    padding: 0.5rem;
    z-index: 1001;
}

.mobile-menu-toggle span {
    display: block;
    width: 1.5rem;
    height: 2px;
    background-color: var(--text-primary);
    transition: var(--transition);
}

.mobile-menu-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: rotate(45deg) translate(0.5rem, 0.5rem);
}

.mobile-menu-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: rotate(-45deg) translate(0.5rem, -0.5rem);
}

/* Navigation menu */
.nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background-color: var(--bg-primary);
    box-shadow: var(--shadow-xl);
    padding: 5rem 2rem 2rem;
    transition: right 0.3s ease;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

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

.nav-menu li a {
    display: block;
    padding: 0.75rem 0;
    font-weight: 500;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
}

.nav-menu li a:hover {
    color: var(--primary-color);
}

.nav-menu .btn-nav {
    background-color: var(--primary-color);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    text-align: center;
    border-bottom: none;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
    padding: 8rem 0 4rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.hero::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(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.hero h1 {
    font-size: 2.25rem;
    margin-bottom: 1.25rem;
    color: white;
}

.hero-tagline {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.95;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
    margin-bottom: 3rem;
}

.hero .btn-primary {
    background-color: white;
    color: var(--primary-color);
}

.hero .btn-primary:hover {
    background-color: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
}

.hero .btn-secondary {
    border-color: white;
    color: white;
}

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

.hero-stats {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 3rem;
    padding-top: 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.stat {
    text-align: center;
}

.stat strong {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.stat span {
    font-size: 0.95rem;
    opacity: 0.9;
}

/* ==========================================================================
   Services Section
   ========================================================================== */

.services {
    padding: 4rem 0;
    background-color: var(--bg-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    background-color: var(--bg-primary);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

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

.service-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.service-card > p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.service-features {
    display: grid;
    gap: 0.75rem;
}

.service-features li {
    padding-left: 1.75rem;
    position: relative;
    color: var(--text-secondary);
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: 700;
}

/* ==========================================================================
   Trust & Social Proof Section
   ========================================================================== */

.trust-section {
    padding: 4rem 0;
    background-color: var(--bg-primary);
}

.trust-badges {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin: 3rem 0;
    text-align: center;
}

.badge {
    padding: 1.5rem;
}

.badge svg {
    margin: 0 auto 1rem;
    color: var(--primary-color);
}

.badge strong {
    display: block;
    color: var(--primary-color);
}

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

/* Case Studies */
.case-studies {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 3rem;
}

.case-study {
    background-color: var(--bg-secondary);
    border-radius: 1rem;
    padding: 2rem;
    border-left: 4px solid var(--primary-color);
}

.case-study-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.case-study-header h3 {
    font-size: 1.25rem;
    margin: 0;
}

.case-study-tag {
    background-color: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 600;
}

.case-study-result {
    color: var(--text-secondary);
    font-style: italic;
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.case-study-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.case-study-stats div {
    text-align: center;
}

.case-study-stats strong {
    display: block;
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */

.contact-section {
    padding: 4rem 0;
    background-color: var(--bg-secondary);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    margin-top: 2rem;
}

.contact-info h2,
.contact-form-wrapper h2 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.contact-info p,
.contact-form-wrapper > p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
}

.contact-item svg {
    flex-shrink: 0;
    color: var(--primary-color);
    margin-top: 0.25rem;
}

.contact-item strong {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.contact-item p {
    color: var(--text-secondary);
    margin: 0;
}

/* Form Styles */
.contact-form-wrapper {
    background-color: var(--bg-primary);
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-lg);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.875rem;
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
    background-color: var(--bg-primary);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.checkbox-group {
    flex-direction: row;
    align-items: start;
    gap: 0.75rem;
}

.checkbox-group input[type="checkbox"] {
    width: 1.25rem;
    height: 1.25rem;
    margin-top: 0.125rem;
    cursor: pointer;
}

.checkbox-group label {
    margin-bottom: 0;
    font-weight: 400;
    cursor: pointer;
}

.error-message {
    color: var(--error-color);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    display: none;
}

.form-group.error .error-message {
    display: block;
}

.form-group.error input,
.form-group.error select,
.form-group.error textarea {
    border-color: var(--error-color);
}

.form-success {
    display: none;
    background-color: #d1fae5;
    border: 2px solid var(--success-color);
    color: #065f46;
    padding: 1rem;
    border-radius: 0.5rem;
    margin-top: 1rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
    background-color: var(--bg-dark);
    color: var(--text-light);
    padding: 3rem 0 1.5rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    color: white;
    font-weight: 700;
    font-size: 1.125rem;
}

.footer-col h3 {
    color: white;
    font-size: 1.125rem;
    margin-bottom: 1rem;
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-col ul li a {
    color: var(--text-light);
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: white;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: var(--transition);
}

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

.footer-emergency {
    margin-top: 1rem;
    padding: 1rem;
    background-color: rgba(220, 38, 38, 0.1);
    border-left: 3px solid var(--accent-color);
    border-radius: 0.25rem;
}

.footer-emergency strong {
    color: var(--accent-color);
    font-size: 1.125rem;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    font-size: 0.875rem;
}

/* ==========================================================================
   Responsive Design - Tablet
   ========================================================================== */

@media (min-width: 768px) {
    /* Typography */
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2.5rem;
    }

    /* Navigation */
    .mobile-menu-toggle {
        display: none;
    }

    .nav-menu {
        position: static;
        width: auto;
        max-width: none;
        height: auto;
        background: none;
        box-shadow: none;
        padding: 0;
        flex-direction: row;
        align-items: center;
        gap: 2rem;
    }

    .nav-menu li a {
        border-bottom: none;
        padding: 0;
    }

    .nav-menu .btn-nav {
        padding: 0.625rem 1.25rem;
    }

    /* Hero */
    .hero {
        padding: 10rem 0 6rem;
    }

    .hero h1 {
        font-size: 3rem;
    }

    .hero-tagline {
        font-size: 1.25rem;
    }

    .hero-cta {
        flex-direction: row;
        justify-content: center;
    }

    .hero-stats {
        grid-template-columns: repeat(3, 1fr);
    }

    /* Services */
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Trust Badges */
    .trust-badges {
        grid-template-columns: repeat(2, 1fr);
    }

    .case-studies {
        grid-template-columns: 1fr;
    }

    /* Contact */
    .contact-grid {
        grid-template-columns: 1fr 1.5fr;
        gap: 4rem;
    }

    /* Footer */
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ==========================================================================
   Responsive Design - Desktop
   ========================================================================== */

@media (min-width: 1024px) {
    /* Typography */
    h1 {
        font-size: 3rem;
    }

    .hero h1 {
        font-size: 3.5rem;
    }

    /* Services */
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2.5rem;
    }

    /* Trust */
    .trust-badges {
        grid-template-columns: repeat(4, 1fr);
    }

    .case-studies {
        grid-template-columns: repeat(3, 1fr);
    }

    /* Footer */
    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr 1.5fr;
    }
}

/* ==========================================================================
   Accessibility
   ========================================================================== */

/* Focus visible for keyboard navigation */
*:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Skip to main content link */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    z-index: 9999;
}

.skip-link:focus {
    top: 0;
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Print Styles */
@media print {
    .site-header,
    .hero-cta,
    .mobile-menu-toggle,
    .contact-form,
    .site-footer {
        display: none;
    }
    
    body {
        font-size: 12pt;
        color: black;
    }
}