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

:root {
    /* Brand Colors */
    --dark-blue: #152249;
    --light-blue: #0094F1;
    --off-white: #F6F7F9;
    --blue-grey-01: #3B4D7A;
    --blue-grey-02: #667DA3;
    --blue-grey-03: #C5CCDD;
    
    /* Typography */
    --font-family: 'Lexend', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--dark-blue);
    color: var(--off-white);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* ===========================
   Header
   =========================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(21, 34, 73, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 148, 241, 0.1);
    padding: var(--spacing-sm) 0;
}

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

.logo {
    display: flex;
    align-items: center;
}

.nav {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-link {
    color: var(--blue-grey-03);
    text-decoration: none;
    font-weight: 400;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover {
    color: var(--light-blue);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--light-blue);
    transition: var(--transition);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-link-cta {
    background: var(--light-blue);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
}

.nav-link-cta::after {
    display: none;
}

.nav-link-cta:hover {
    background: #007ACC;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 148, 241, 0.3);
}

/* ===========================
   Hero Section
   =========================== */
.hero {
    position: relative;
    padding: calc(80px + var(--spacing-xl)) 0 var(--spacing-xl);
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

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

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

.hero-badge {
    display: inline-block;
    background: rgba(0, 148, 241, 0.1);
    color: var(--light-blue);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    border: 1px solid rgba(0, 148, 241, 0.3);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    color: var(--off-white);
}

.hero-title .highlight {
    color: var(--light-blue);
    position: relative;
    display: inline-block;
}

.hero-description {
    font-size: 1.15rem;
    color: var(--blue-grey-03);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
    font-weight: 300;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: #007ACC;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 148, 241, 0.3);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--off-white);
    border: 1px solid var(--blue-grey-02);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--light-blue);
    transform: translateY(-2px);
}

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

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

.feature-tag {
    background: rgba(59, 77, 122, 0.3);
    color: var(--blue-grey-03);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.85rem;
    border: 1px solid rgba(59, 77, 122, 0.5);
}

/* Hero Visual */
.hero-visual {
    position: relative;
    height: 500px;
    animation: fadeIn 1s ease-out 0.3s both;
}

.visual-card {
    position: absolute;
    background: linear-gradient(135deg, rgba(0, 148, 241, 0.1), rgba(59, 77, 122, 0.1));
    border: 1px solid rgba(0, 148, 241, 0.2);
    border-radius: 12px;
    padding: 1.5rem;
    backdrop-filter: blur(10px);
    transition: var(--transition);
    animation: float 3s ease-in-out infinite;
}

.visual-card:hover {
    transform: translateY(-10px) scale(1.05);
    border-color: var(--light-blue);
    box-shadow: 0 12px 30px rgba(0, 148, 241, 0.2);
}

.card-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.card-text {
    font-weight: 600;
    color: var(--off-white);
}

.card-1 {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.card-2 {
    top: 10%;
    right: 15%;
    animation-delay: 0.5s;
}

.card-3 {
    bottom: 30%;
    left: 5%;
    animation-delay: 1s;
}

.card-4 {
    bottom: 15%;
    right: 10%;
    animation-delay: 1.5s;
}

.hero-decoration {
    position: absolute;
    top: -10%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 148, 241, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 1;
    animation: pulse 4s ease-in-out infinite;
}

/* ===========================
   Value Proposition
   =========================== */
.value-prop {
    background: linear-gradient(135deg, var(--blue-grey-01), var(--dark-blue));
    padding: var(--spacing-lg) 0;
    border-top: 1px solid rgba(0, 148, 241, 0.1);
    border-bottom: 1px solid rgba(0, 148, 241, 0.1);
}

.value-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.section-subtitle {
    font-size: 1.5rem;
    color: var(--light-blue);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.value-text {
    font-size: 1.1rem;
    color: var(--blue-grey-03);
    line-height: 1.8;
    font-weight: 300;
}

/* ===========================
   Services Section
   =========================== */
.services {
    padding: var(--spacing-xl) 0;
    background: var(--dark-blue);
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: var(--spacing-sm);
    color: var(--off-white);
    font-weight: 700;
}

.section-intro {
    text-align: center;
    font-size: 1.1rem;
    color: var(--blue-grey-03);
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
    font-weight: 300;
}

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

.service-card {
    background: linear-gradient(135deg, rgba(59, 77, 122, 0.1), rgba(0, 148, 241, 0.05));
    border: 1px solid rgba(0, 148, 241, 0.2);
    border-radius: 12px;
    padding: var(--spacing-md);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--light-blue), transparent);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: var(--light-blue);
    box-shadow: 0 12px 30px rgba(0, 148, 241, 0.2);
    background: linear-gradient(135deg, rgba(59, 77, 122, 0.15), rgba(0, 148, 241, 0.1));
}

.service-icon {
    width: 60px;
    height: 60px;
    background: rgba(0, 148, 241, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
    color: var(--light-blue);
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: var(--light-blue);
    color: white;
    transform: scale(1.1) rotate(5deg);
}

.service-title {
    font-size: 1.3rem;
    color: var(--off-white);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.service-description {
    color: var(--blue-grey-03);
    line-height: 1.7;
    font-weight: 300;
}

/* ===========================
   How We Work Section
   =========================== */
.how-we-work {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(180deg, var(--dark-blue), var(--blue-grey-01));
}

.process-timeline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    position: relative;
}

.process-step {
    position: relative;
    padding: var(--spacing-md);
    background: rgba(0, 148, 241, 0.05);
    border: 1px solid rgba(0, 148, 241, 0.2);
    border-radius: 12px;
    transition: var(--transition);
}

.process-step:hover {
    transform: translateY(-8px);
    border-color: var(--light-blue);
    box-shadow: 0 12px 30px rgba(0, 148, 241, 0.2);
    background: rgba(0, 148, 241, 0.1);
}

.step-number {
    font-size: 3rem;
    font-weight: 700;
    color: rgba(0, 148, 241, 0.3);
    line-height: 1;
    margin-bottom: var(--spacing-sm);
    transition: var(--transition);
}

.process-step:hover .step-number {
    color: var(--light-blue);
    transform: scale(1.1);
}

.step-title {
    font-size: 1.3rem;
    color: var(--off-white);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.step-description {
    color: var(--blue-grey-03);
    line-height: 1.7;
    font-weight: 300;
}

/* ===========================
   CTA Section
   =========================== */
.cta-section {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--blue-grey-01), var(--dark-blue));
    border-top: 1px solid rgba(0, 148, 241, 0.2);
    text-align: center;
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
}

.cta-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--off-white);
    font-weight: 700;
}

.cta-description {
    font-size: 1.15rem;
    color: var(--blue-grey-03);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
    font-weight: 300;
}

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

/* ===========================
   Footer
   =========================== */
.footer {
    background: rgba(21, 34, 73, 0.8);
    padding: var(--spacing-lg) 0 var(--spacing-md);
    border-top: 1px solid rgba(0, 148, 241, 0.1);
}

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

.footer-logo {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer-tagline {
    color: var(--blue-grey-03);
    font-size: 0.9rem;
    font-weight: 300;
}

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

.footer-link {
    color: var(--blue-grey-03);
    text-decoration: none;
    font-size: 0.95rem;
    transition: var(--transition);
}

.footer-link:hover {
    color: var(--light-blue);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(0, 148, 241, 0.1);
    color: var(--blue-grey-03);
    font-size: 0.9rem;
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.5;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.05);
    }
}

/* ===========================
   Responsive Design
   =========================== */
@media (max-width: 968px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .hero-visual {
        height: 400px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .nav {
        gap: var(--spacing-sm);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .process-timeline {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .cta-title {
        font-size: 2rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .nav {
        display: none;
    }
    
    .hero {
        padding: calc(80px + var(--spacing-md)) 0 var(--spacing-md);
    }
    
    .hero-visual {
        display: none;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}