/* ==========================================================================
   CSS Variables
   ========================================================================== */
:root {
    --bg-primary: #07111F;
    --bg-secondary: #0B1728;
    --bg-card: #101D33;
    --text-primary: #F8FAFC;
    --text-secondary: #94A3B8;
    --accent-blue: #3B82F6;
    --accent-cyan: #22D3EE;
    --accent-green: #22C55E;
    --border-color: rgba(148, 163, 184, 0.18);
    --font-family: 'Inter', system-ui, -apple-system, sans-serif;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 24px;
    --radius-full: 9999px;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

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

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

ul {
    list-style: none;
}

img, svg {
    max-width: 100%;
    display: block;
}

/* ==========================================================================
   Typography
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
}

.hero-title span {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto var(--spacing-md);
    font-weight: 400;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--spacing-xs);
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
}

/* ==========================================================================
   Layout & Utility
   ========================================================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

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

.bg-secondary {
    background-color: var(--bg-secondary);
}

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

.bg-blue { background-color: rgba(59, 130, 246, 0.1); color: var(--accent-blue); }
.bg-cyan { background-color: rgba(34, 211, 238, 0.1); color: var(--accent-cyan); }
.bg-green { background-color: rgba(34, 197, 94, 0.1); color: var(--accent-green); }

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    cursor: pointer;
    border: none;
    font-size: 1rem;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
    color: white;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.5);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* ==========================================================================
   Navigation
   ========================================================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(7, 17, 31, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    transition: var(--transition);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9375rem;
}

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

.mobile-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.mobile-toggle span {
    width: 100%;
    height: 3px;
    background-color: var(--text-primary);
    border-radius: 3px;
    transition: var(--transition);
}

/* Mobile Menu Overlay */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--bg-primary);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

.mobile-menu.active {
    opacity: 1;
    pointer-events: all;
}

.mobile-links {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.mobile-links a {
    font-size: 1.5rem;
    font-weight: 600;
}

@media (max-width: 768px) {
    .nav-links, .nav-cta {
        display: none;
    }
    .mobile-toggle {
        display: flex;
    }
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    padding-top: 180px;
    padding-bottom: var(--spacing-xl);
    text-align: center;
    position: relative;
}

/* Background Glow */
.hero::before {
    content: '';
    position: absolute;
    top: -20%;
    left: 50%;
    transform: translateX(-50%);
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, rgba(7, 17, 31, 0) 70%);
    z-index: -1;
    border-radius: 50%;
    pointer-events: none;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    color: var(--accent-cyan);
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: var(--spacing-md);
}

.trust-badges {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    margin-top: 4rem;
    padding-top: 3rem;
    border-top: 1px solid var(--border-color);
}

.badge-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

.badge-item svg {
    width: 20px;
    height: 20px;
    color: var(--text-primary);
}

@media (max-width: 600px) {
    .hero-actions {
        flex-direction: column;
    }
    .trust-badges {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
}

/* ==========================================================================
   Cards General
   ========================================================================== */
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    transition: var(--transition);
}

.card:hover {
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* ==========================================================================
   Services Section
   ========================================================================== */
.section-header {
    margin-bottom: var(--spacing-lg);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.service-card {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-icon svg {
    width: 24px;
    height: 24px;
}

.service-card h3 {
    font-size: 1.25rem;
}

.service-card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

/* ==========================================================================
   Expertise Section
   ========================================================================== */
.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.expertise-card {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.expertise-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(148, 163, 184, 0.1);
}

.expertise-number {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent-cyan);
    opacity: 0.8;
}

.expertise-header h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin: 0;
}

.expertise-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.expertise-list li {
    position: relative;
    padding-left: 1.5rem;
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.expertise-list li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--accent-blue);
    font-weight: bold;
}

/* ==========================================================================
   Process Section
   ========================================================================== */
.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.step-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.step-card:hover {
    border-color: rgba(255, 255, 255, 0.15);
    background-color: rgba(16, 29, 51, 0.8);
}

.step-number {
    font-size: 4rem;
    font-weight: 800;
    color: rgba(255, 255, 255, 0.03);
    position: absolute;
    top: -10px;
    right: 10px;
    line-height: 1;
}

.step-content {
    position: relative;
    z-index: 1;
}

.step-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.step-content p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

/* ==========================================================================
   Partners Section
   ========================================================================== */
.partners-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.partner-categories .section-title,
.partner-benefits .section-title {
    text-align: left;
    margin-bottom: var(--spacing-xs);
}

.partner-categories .section-description {
    text-align: left;
    margin-bottom: var(--spacing-md);
}

.category-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.tag {
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    color: var(--text-primary);
    transition: var(--transition);
}

.tag:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.benefits-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: var(--spacing-md);
}

.benefits-list li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    font-size: 1.0625rem;
    color: var(--text-primary);
}

.benefits-list svg {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

@media (max-width: 900px) {
    .partners-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-text {
    font-size: 1.125rem;
    color: var(--text-secondary);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.about-text p {
    line-height: 1.8;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 3rem;
    background: linear-gradient(145deg, var(--bg-card), rgba(7, 17, 31, 0.5));
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
}

.contact-info {
    max-width: 500px;
}

.contact-info .section-title {
    text-align: left;
    margin-bottom: var(--spacing-xs);
}

.contact-info .section-description {
    text-align: left;
    margin-bottom: var(--spacing-md);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--text-primary);
    font-size: 1.0625rem;
}

.contact-item svg {
    width: 24px;
    height: 24px;
    color: var(--accent-blue);
}

@media (max-width: 900px) {
    .contact-card {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
        padding: 2rem;
    }
    
    .contact-info {
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .contact-info .section-title,
    .contact-info .section-description {
        text-align: center;
    }
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 3rem;
}

.footer-brand .logo {
    margin-bottom: 0.5rem;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.footer-contact a {
    color: var(--text-secondary);
}

.footer-contact a:hover {
    color: var(--text-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(148, 163, 184, 0.1);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

@media (max-width: 600px) {
    .footer-content {
        flex-direction: column;
        gap: 2rem;
    }
}