/* ============================================================================
   COMPLIX - Professional B2B SaaS Marketing Website
   Color Scheme: Navy #0D2137, Blue #2E75B6, Modern Professional Design
   ============================================================================ */

:root {
    --color-navy: #0D2137;
    --color-navy-dark: #0a1829;
    --color-blue: #2E75B6;
    --color-blue-light: #4A8FD8;
    --color-green: #27AE60;
    --color-red: #E74C3C;
    --color-orange: #F39C12;
    --color-light-gray: #F5F7FA;
    --color-medium-gray: #E8EEF5;
    --color-dark-gray: #34495E;
    --color-text: #2C3E50;
    --color-text-light: #7F8C8D;
    --color-white: #FFFFFF;
    --color-border: #DFE6E9;

    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'Courier New', monospace;

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

    --transition: all 0.3s ease;
    --transition-slow: all 0.6s ease;
    --shadow-sm: 0 2px 8px rgba(13, 33, 55, 0.1);
    --shadow-md: 0 8px 24px rgba(13, 33, 55, 0.12);
    --shadow-lg: 0 16px 40px rgba(13, 33, 55, 0.15);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--color-text);
    line-height: 1.6;
    background-color: var(--color-white);
}

/* ============================================================================
   TYPOGRAPHY
   ============================================================================ */

h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    font-weight: 700;
    color: var(--color-navy);
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: var(--spacing-md);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    margin-bottom: var(--spacing-lg);
}

h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

h4 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

p {
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.text-muted {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

.text-white {
    color: var(--color-white);
}

.text-blue {
    color: var(--color-blue);
}

/* ============================================================================
   LAYOUT
   ============================================================================ */

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

.section {
    padding: var(--spacing-2xl) 0;
}

.section-light {
    background-color: var(--color-light-gray);
}

.section-navy {
    background-color: var(--color-navy);
    color: var(--color-white);
}

.section-navy h2,
.section-navy h3,
.section-navy h4,
.section-navy p {
    color: var(--color-white);
}

.section-navy .text-muted {
    color: rgba(232, 238, 245, 0.7);
}

/* ============================================================================
   NAVIGATION
   ============================================================================ */

nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    padding: var(--spacing-md) 0;
}

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

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-navy);
    letter-spacing: -0.5px;
    text-decoration: none;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--color-text);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--color-blue);
}

.nav-cta {
    background: linear-gradient(135deg, var(--color-blue) 0%, #1B5BA8 100%);
    color: var(--color-white);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: 6px;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 0.95rem;
    text-decoration: none;
    display: inline-block;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(46, 117, 182, 0.3);
}

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

/* ============================================================================
   BUTTONS
   ============================================================================ */

.btn {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    transition: var(--transition);
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-blue) 0%, #1B5BA8 100%);
    color: var(--color-white);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 24px rgba(46, 117, 182, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--color-navy);
    border: 2px solid var(--color-navy);
}

.btn-secondary:hover {
    background: var(--color-navy);
    color: var(--color-white);
    transform: translateY(-3px);
}

.btn-secondary-light {
    background: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-white);
}

.btn-secondary-light:hover {
    background: var(--color-white);
    color: var(--color-navy);
    transform: translateY(-3px);
}

.btn-sm {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.9rem;
}

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: 1.1rem;
}

/* ============================================================================
   HERO SECTION
   ============================================================================ */

.hero {
    margin-top: 70px;
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, var(--color-navy) 0%, #1a3254 100%);
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: rgba(46, 117, 182, 0.1);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(30px); }
}

.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.hero-text h1 {
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
}

.hero-subheading {
    font-size: 1.25rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-xl);
    color: #E8EEF5;
}

.hero-ctas {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.hero-image {
    background: linear-gradient(135deg, rgba(46, 117, 182, 0.2) 0%, rgba(46, 117, 182, 0.05) 100%);
    border-radius: 12px;
    padding: var(--spacing-2xl);
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid rgba(232, 238, 245, 0.3);
    position: relative;
    overflow: hidden;
    color: #A8C5E0;
    font-size: 3rem;
}

.hero-image::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background:
        linear-gradient(90deg, transparent 0%, rgba(46, 117, 182, 0.1) 50%, transparent 100%),
        linear-gradient(45deg, rgba(46, 117, 182, 0.05) 25%, transparent 25%);
    background-size: 100% 100%, 20px 20px;
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* ============================================================================
   GRID LAYOUTS
   ============================================================================ */

.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

/* ============================================================================
   CARDS
   ============================================================================ */

.card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: var(--spacing-lg);
    transition: var(--transition);
}

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

.card-feature {
    text-align: center;
    padding: var(--spacing-xl);
}

.card-feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    display: inline-block;
}

.card-pricing {
    padding: var(--spacing-2xl) var(--spacing-lg);
    border: 2px solid var(--color-border);
    border-radius: 12px;
    text-align: center;
}

.card-pricing.featured {
    border-color: var(--color-blue);
    background: linear-gradient(135deg, rgba(46, 117, 182, 0.05) 0%, rgba(46, 117, 182, 0.02) 100%);
    transform: scale(1.05);
}

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

.card-pricing .price {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-navy);
    margin: var(--spacing-lg) 0;
}

.card-pricing .billing-period {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

.card-pricing ul {
    list-style: none;
    margin: var(--spacing-lg) 0;
    text-align: left;
}

.card-pricing ul li {
    padding: var(--spacing-sm) 0;
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.card-pricing ul li::before {
    content: '✓';
    color: var(--color-green);
    font-weight: bold;
    font-size: 1.2rem;
}

/* ============================================================================
   TESTIMONIALS
   ============================================================================ */

.testimonial-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: var(--spacing-lg);
    margin: var(--spacing-md) 0;
}

.testimonial-content {
    font-style: italic;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-light);
}

.testimonial-author {
    font-weight: 600;
    color: var(--color-navy);
}

.testimonial-title {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.star-rating {
    color: var(--color-orange);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 2px;
}

/* ============================================================================
   FEATURE SECTION
   ============================================================================ */

.feature-section {
    margin: var(--spacing-2xl) 0;
}

.feature-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.feature-content.reverse {
    grid-template-columns: 1fr 1fr;
}

.feature-content.reverse > *:first-child {
    order: 2;
}

.feature-image {
    background: linear-gradient(135deg, rgba(46, 117, 182, 0.1) 0%, rgba(46, 117, 182, 0.05) 100%);
    border-radius: 12px;
    padding: var(--spacing-2xl);
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--color-border);
    color: #A8C5E0;
    font-size: 4rem;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    padding: var(--spacing-md) 0;
    display: flex;
    gap: var(--spacing-md);
}

.feature-list li::before {
    content: '→';
    color: var(--color-blue);
    font-weight: bold;
    font-size: 1.5rem;
    flex-shrink: 0;
}

/* ============================================================================
   COMPARISON TABLE
   ============================================================================ */

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-lg) 0;
}

.comparison-table th {
    background-color: var(--color-navy);
    color: var(--color-white);
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
}

.comparison-table td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.comparison-table tr:hover {
    background-color: var(--color-light-gray);
}

.comparison-table .check {
    color: var(--color-green);
    font-weight: bold;
}

.comparison-table .cross {
    color: var(--color-red);
    font-weight: bold;
}

/* ============================================================================
   ACCORDION
   ============================================================================ */

.accordion {
    margin: var(--spacing-lg) 0;
}

.accordion-item {
    border: 1px solid var(--color-border);
    border-radius: 8px;
    margin-bottom: var(--spacing-md);
    overflow: hidden;
}

.accordion-header {
    padding: var(--spacing-lg);
    background-color: var(--color-light-gray);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.accordion-header:hover {
    background-color: var(--color-medium-gray);
}

.accordion-header h4 {
    margin: 0;
    color: var(--color-navy);
    font-size: 1.1rem;
}

.accordion-toggle {
    font-size: 1.5rem;
    transition: var(--transition);
}

.accordion-toggle.open {
    transform: rotate(180deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.accordion-content.open {
    max-height: 500px;
    padding: var(--spacing-lg);
}

.accordion-content p {
    margin: 0;
}

/* ============================================================================
   FORMS
   ============================================================================ */

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

label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--color-navy);
}

input[type="text"],
input[type="email"],
input[type="number"],
input[type="tel"],
select,
textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="number"]:focus,
input[type="tel"]:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--color-blue);
    box-shadow: 0 0 0 3px rgba(46, 117, 182, 0.1);
}

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

.form-error {
    color: var(--color-red);
    font-size: 0.9rem;
    margin-top: var(--spacing-xs);
    display: none;
}

input:invalid ~ .form-error,
select:invalid ~ .form-error {
    display: block;
}

/* ============================================================================
   AUTHORITY BADGES
   ============================================================================ */

.authority-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.authority-badge {
    background: var(--color-white);
    border: 2px solid var(--color-border);
    border-radius: 12px;
    padding: var(--spacing-lg);
    text-align: center;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 150px;
}

.authority-badge:hover {
    border-color: var(--color-blue);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

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

.authority-badge-name {
    font-weight: 600;
    color: var(--color-navy);
    font-size: 1.1rem;
}

.authority-badge-desc {
    font-size: 0.85rem;
    color: var(--color-text-light);
    margin-top: var(--spacing-xs);
}

/* ============================================================================
   STATS SECTION
   ============================================================================ */

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

.stat-card {
    text-align: center;
    padding: var(--spacing-lg);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-blue);
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    font-size: 1.1rem;
    color: var(--color-text);
}

/* ============================================================================
   CTA SECTION
   ============================================================================ */

.cta-section {
    background: linear-gradient(135deg, var(--color-navy) 0%, #1a3254 100%);
    color: var(--color-white);
    padding: var(--spacing-2xl);
    border-radius: 12px;
    text-align: center;
    margin: var(--spacing-2xl) 0;
}

.cta-section h2 {
    color: var(--color-white);
    margin-bottom: var(--spacing-lg);
}

.cta-section p {
    color: #E8EEF5;
    font-size: 1.2rem;
    margin-bottom: var(--spacing-xl);
}

/* ============================================================================
   FOOTER
   ============================================================================ */

footer {
    background-color: var(--color-navy);
    color: var(--color-white);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

footer a {
    color: #E8EEF5;
    text-decoration: none;
    transition: var(--transition);
}

footer a:hover {
    color: var(--color-white);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

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

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-bottom {
    border-top: 1px solid rgba(232, 238, 245, 0.2);
    padding-top: var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.footer-bottom p {
    margin: 0;
    color: #A8C5E0;
    font-size: 0.9rem;
}

/* ============================================================================
   RESPONSIVE DESIGN
   ============================================================================ */

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

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

    .hero-content {
        grid-template-columns: 1fr;
    }

    .feature-content {
        grid-template-columns: 1fr;
    }

    .feature-content.reverse > *:first-child {
        order: unset;
    }

    .card-pricing.featured {
        transform: scale(1);
    }

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

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

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

@media (max-width: 480px) {
    :root {
        --spacing-lg: 1.5rem;
        --spacing-xl: 2rem;
        --spacing-2xl: 2.5rem;
    }

    h1 {
        font-size: 1.75rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .container {
        padding: 0 var(--spacing-md);
    }

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

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

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

    .btn {
        width: 100%;
    }

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

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

    .comparison-table {
        font-size: 0.9rem;
    }

    .comparison-table th,
    .comparison-table td {
        padding: var(--spacing-sm);
    }

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

/* ============================================================================
   UTILITY CLASSES
   ============================================================================ */

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

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

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

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

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

.hidden {
    display: none;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}