/* ===================================
   VARIABLES & RESET
   =================================== */
:root {
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --secondary: #0f172a;
    --secondary-light: #1e293b;
    --accent: #10b981;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-dark: #0f172a;
    --border: #e2e8f0;
    --shadow: rgba(15, 23, 42, 0.08);
    --shadow-lg: rgba(15, 23, 42, 0.15);
    --gradient: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
    --gradient-accent: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-primary);
    line-height: 1.6;
    background: var(--bg-primary);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

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

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.lead {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--text-primary);
}

/* ===================================
   BUTTONS
   =================================== */
.btn-primary, .btn-secondary {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient);
    color: white;
    box-shadow: 0 4px 12px var(--shadow-lg);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px var(--shadow-lg);
}

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

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

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* ===================================
   NAVIGATION
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    box-shadow: 0 4px 20px var(--shadow);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-image {
    height: 50px;
    width: auto;
    transition: transform 0.3s ease;
}

.logo-image:hover {
    transform: scale(1.05);
}

.logo-text {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
}

.logo-accent {
    color: var(--primary);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.nav-menu .btn-primary {
    padding: 0.5rem 1.25rem;
    color: white;
}

.nav-menu .btn-primary:hover {
    color: white;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 0.35rem;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* ===================================
   HERO SECTION
   =================================== */
.hero {
    position: relative;
    padding: 10rem 0 8rem;
    background: var(--bg-secondary);
    overflow: hidden;
}

.hero-image-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.85) 0%, rgba(37, 99, 235, 0.75) 100%);
    z-index: 1;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(37, 99, 235, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(16, 185, 129, 0.05) 0%, transparent 50%);
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    text-align: center;
    margin: 0 auto;
}

.hero-content .hero-title,
.hero-content .hero-subtitle {
    color: white;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-title {
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===================================
   SERVICES SECTION
   =================================== */
.services {
    padding: 6rem 0;
    background: var(--bg-primary);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

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

.service-card {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 2rem;
    transition: all 0.3s ease;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px var(--shadow-lg);
    border-color: var(--primary);
}

.service-card-highlight {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.03) 0%, rgba(16, 185, 129, 0.03) 100%);
    border-color: var(--primary);
}

.service-image {
    width: 100%;
    height: 200px;
    margin-bottom: 1.5rem;
    border-radius: 0.75rem;
    overflow: hidden;
    position: relative;
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.5s ease;
}

.service-card:hover .service-image img {
    transform: scale(1.1);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.service-icon svg {
    width: 30px;
    height: 30px;
    color: white;
}

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

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

.service-features {
    list-style: none;
    padding: 0;
}

.service-features li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.service-features li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
}

/* ===================================
   EXPERTISE SECTION
   =================================== */
.expertise {
    padding: 6rem 0;
    background: var(--bg-dark);
    background-image: url('../images/expertise-background.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    position: relative;
    color: white;
}

.expertise::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.9);
    z-index: 0;
}

.expertise .container {
    position: relative;
    z-index: 1;
}

.expertise .section-header h2,
.expertise .section-header p {
    color: white;
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.expertise-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 1rem;
    padding: 2rem;
    transition: all 0.3s ease;
}

.expertise-item:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--primary);
    transform: translateY(-4px);
}

.expertise-item h4 {
    color: white;
    margin-bottom: 0.75rem;
    font-size: 1.25rem;
}

.expertise-item p {
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
}

/* ===================================
   ABOUT SECTION
   =================================== */
.about {
    padding: 6rem 0;
    background: var(--bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text h2 {
    margin-bottom: 1.5rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

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

.about-main-image {
    width: 100%;
    border-radius: 1rem;
    margin-bottom: 2rem;
    box-shadow: 0 8px 30px var(--shadow-lg);
    object-fit: cover;
    max-height: 400px;
}

.about-card {
    background: var(--bg-primary);
    border-radius: 1rem;
    padding: 2.5rem;
    box-shadow: 0 8px 30px var(--shadow-lg);
    border: 1px solid var(--border);
}

.about-card h3 {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

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

.commitment-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
}

.commitment-list li:last-child {
    border-bottom: none;
}

.commitment-list svg {
    width: 24px;
    height: 24px;
    color: var(--accent);
    flex-shrink: 0;
}

/* ===================================
   CONTACT SECTION
   =================================== */
.contact {
    padding: 6rem 0;
    background: var(--bg-primary);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
    margin-top: 3rem;
}

.contact-info h3 {
    margin-bottom: 2rem;
}

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

.benefit {
    display: flex;
    gap: 1.5rem;
}

.benefit-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient);
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.benefit-icon svg {
    width: 24px;
    height: 24px;
    color: white;
}

.benefit h4 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

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

.contact-form-wrapper {
    background: var(--bg-secondary);
    border-radius: 1rem;
    padding: 2.5rem;
    border: 1px solid var(--border);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

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

.form-group label {
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    font-family: inherit;
    font-size: 1rem;
    background: var(--bg-primary);
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

.form-note {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-top: 0.5rem;
}

.form-success {
    text-align: center;
    padding: 3rem;
}

.form-success svg {
    width: 60px;
    height: 60px;
    color: var(--accent);
    margin-bottom: 1.5rem;
}

.form-success h3 {
    color: var(--accent);
    margin-bottom: 1rem;
}

.form-success.hidden {
    display: none;
}

/* ===================================
   FOOTER
   =================================== */
.footer {
    background: var(--bg-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    height: 60px;
    width: auto;
    margin-bottom: 1rem;
}

.footer-col h4 {
    color: white;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.footer-col h5 {
    color: white;
    margin-bottom: 1rem;
}

.footer-col p {
    color: rgba(255, 255, 255, 0.6);
}

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

.footer-col ul li {
    margin-bottom: 0.75rem;
}

.footer-col ul li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-col ul li a:hover {
    color: var(--primary);
}

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

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    margin: 0;
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */
@media (max-width: 968px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px var(--shadow-lg);
        padding: 2rem 0;
        align-items: stretch;
    }

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

    .nav-menu li {
        margin: 0.5rem 0;
    }

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

    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }

    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }

    h1 { font-size: 2.25rem; }
    h2 { font-size: 2rem; }

    .hero {
        padding: 8rem 0 6rem;
    }

    .hero-image {
        object-position: center;
    }

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

    .service-image {
        height: 180px;
    }

    .expertise {
        background-attachment: scroll;
    }

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

    .about-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

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

    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .container {
        padding: 0 1.5rem;
    }

    h1 { font-size: 1.875rem; }
    h2 { font-size: 1.75rem; }

    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-cta .btn-primary,
    .hero-cta .btn-secondary {
        width: 100%;
        text-align: center;
    }

    .service-image {
        height: 160px;
    }

    .about-main-image {
        max-height: 300px;
    }

    .about-stats {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

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

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

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

.service-card,
.expertise-item,
.benefit {
    animation: fadeInUp 0.6s ease-out;
}

/* Smooth scrolling offset for fixed navbar */
section {
    scroll-margin-top: 80px;
}