/* ========================================
   c-metric - Style CSS
   Modern, Minimalist, Professional
   ======================================== */

/* CSS Variables */
:root {
    --primary: #28509E;
    --primary-dark: #1e3a73;
    --primary-light: #3a63b8;
    --gray-dark: #5D5D5D;
    --gray-light: #BDBDBD;
    --gray-lighter: #f5f5f5;
    --white: #FFFFFF;
    --black: #1a1a2e;
    --text: #333333;
    --text-light: #666666;

    --font-primary: 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;

    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);

    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.2s ease;
}

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

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

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

ul {
    list-style: none;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

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

.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--primary);
    margin-bottom: 12px;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    margin-bottom: 16px;
}

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

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-header .section-desc {
    margin: 0 auto;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

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

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

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

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

.btn-large {
    padding: 18px 48px;
    font-size: 1rem;
}

/* ========================================
   Navigation
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0,0,0,0.05);
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: var(--shadow-sm);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px;
}

.logo img {
    height: 36px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 40px;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition-fast);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 24px;
}

.lang-selector {
    display: flex;
    gap: 8px;
}

.lang-btn {
    padding: 6px 12px;
    font-size: 0.8125rem;
    font-weight: 600;
    background: transparent;
    border: 1px solid var(--gray-light);
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.lang-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

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

.nav-cta {
    padding: 12px 24px;
    background: var(--primary);
    color: var(--white);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 6px;
    transition: var(--transition);
}

.nav-cta:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--black);
    transition: var(--transition-fast);
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 73px;
    left: 0;
    right: 0;
    background: var(--white);
    padding: 24px;
    box-shadow: var(--shadow-md);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.mobile-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.mobile-menu a {
    display: block;
    padding: 16px 0;
    font-size: 1rem;
    font-weight: 500;
    border-bottom: 1px solid var(--gray-lighter);
}

.mobile-lang-selector {
    display: flex;
    gap: 8px;
    margin-top: 16px;
}

/* ========================================
   Hero Section with Image Background
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 120px 24px 80px;
    position: relative;
    overflow: hidden;
}

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

.hero-bg-slide {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
}

.hero-bg-slide.active {
    opacity: 1;
}

.hero-bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(30, 58, 115, 0.85) 0%, rgba(40, 80, 158, 0.75) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    color: var(--white);
    margin-bottom: 24px;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    color: rgba(255,255,255,0.9);
    margin-bottom: 40px;
    font-weight: 400;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 64px;
    margin-top: 80px;
    position: relative;
    z-index: 1;
}

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

.stat-number {
    display: block;
    font-size: 3rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1;
}

.stat-label {
    display: block;
    font-size: 0.875rem;
    color: rgba(255,255,255,0.8);
    margin-top: 8px;
    font-weight: 500;
}

/* ========================================
   Services Section
   ======================================== */
.services {
    padding: 120px 0;
    background: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.service-card {
    padding: 40px 32px;
    background: var(--white);
    border: 1px solid var(--gray-lighter);
    border-radius: 16px;
    transition: var(--transition);
}

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

.service-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(40, 80, 158, 0.1);
    border-radius: 12px;
    margin-bottom: 24px;
}

.service-icon svg {
    width: 32px;
    height: 32px;
    stroke: var(--primary);
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.service-card p {
    color: var(--text-light);
    font-size: 0.9375rem;
    line-height: 1.7;
}

/* ========================================
   About Section
   ======================================== */
.about {
    padding: 120px 0;
    background: var(--gray-lighter);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-content .section-title {
    margin-bottom: 24px;
}

.about-content p {
    color: var(--text-light);
    margin-bottom: 24px;
    font-size: 1.0625rem;
    line-height: 1.8;
}

.about-features {
    margin-top: 32px;
}

.feature {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.feature svg {
    width: 24px;
    height: 24px;
    stroke: var(--primary);
    flex-shrink: 0;
}

.feature span {
    font-weight: 500;
    color: var(--text);
}

.about-visual {
    display: flex;
    justify-content: center;
}

.about-card {
    width: 100%;
    max-width: 400px;
    aspect-ratio: 1;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 48px;
    color: var(--white);
}

.about-card-icon svg {
    width: 80px;
    height: 80px;
    stroke: var(--white);
    margin-bottom: 24px;
}

.about-card span {
    font-size: 1.25rem;
    font-weight: 600;
}

/* ========================================
   Portfolio Section
   ======================================== */
.portfolio {
    padding: 120px 0;
    background: var(--white);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.portfolio-card {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    aspect-ratio: 4/3;
}

.portfolio-image {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.portfolio-overlay {
    padding: 32px;
    color: var(--white);
    text-align: left;
}

.portfolio-category {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.8;
    margin-bottom: 12px;
}

.portfolio-overlay h3 {
    font-size: 1.375rem;
    color: var(--white);
    margin-bottom: 12px;
}

.portfolio-overlay p {
    font-size: 0.9375rem;
    opacity: 0.9;
    line-height: 1.6;
}

.portfolio-card:hover .portfolio-overlay {
    background: rgba(0,0,0,0.3);
}

/* ========================================
   Process Section
   ======================================== */
.process {
    padding: 120px 0;
    background: var(--gray-lighter);
    color: var(--text);
}

.process .section-tag {
    color: var(--primary);
}

.process .section-title {
    color: var(--black);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
}

.process-step {
    text-align: center;
    padding: 40px 24px;
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
}

.process-number {
    font-size: 4rem;
    font-weight: 800;
    color: var(--primary);
    opacity: 0.15;
    line-height: 1;
    margin-bottom: 24px;
}

.process-step h3 {
    font-size: 1.5rem;
    color: var(--black);
    margin-bottom: 16px;
}

.process-step p {
    color: var(--text-light);
    font-size: 0.9375rem;
    line-height: 1.7;
}

/* ========================================
   CTA Section
   ======================================== */
.cta {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    text-align: center;
    color: var(--white);
}

.cta h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    color: var(--white);
    margin-bottom: 16px;
}

.cta p {
    font-size: 1.125rem;
    opacity: 0.9;
    margin-bottom: 32px;
}

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

/* ========================================
   Contact Section
   ======================================== */
.contact {
    padding: 120px 0;
    background: var(--gray-lighter);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
}

.contact-info .section-title {
    margin-bottom: 16px;
}

.contact-info > p {
    color: var(--text-light);
    margin-bottom: 32px;
    font-size: 1.0625rem;
}

.contact-details {
    margin-top: 32px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 20px;
}

.contact-item svg {
    width: 24px;
    height: 24px;
    stroke: var(--primary);
    flex-shrink: 0;
    margin-top: 2px;
}

.contact-item span {
    font-size: 1rem;
    color: var(--text);
    line-height: 1.6;
}

.contact-map {
    margin-top: 24px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.contact-map iframe {
    display: block;
}

.contact-form {
    background: var(--white);
    padding: 48px;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    font-size: 1rem;
    font-family: var(--font-primary);
    border: 1px solid var(--gray-light);
    border-radius: 8px;
    transition: var(--transition-fast);
    background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(40, 80, 158, 0.1);
}

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

.contact-form .btn {
    width: 100%;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    padding: 80px 0 40px;
    background: var(--black);
    color: var(--white);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 64px;
    margin-bottom: 48px;
}

.footer-brand img {
    height: 36px;
    margin-bottom: 16px;
    filter: brightness(0) invert(1);
}

.footer-brand p {
    color: rgba(255,255,255,0.6);
    font-size: 0.9375rem;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
    color: rgba(255,255,255,0.5);
}

.footer-links a {
    display: block;
    color: rgba(255,255,255,0.8);
    padding: 8px 0;
    font-size: 0.9375rem;
}

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

.footer-contact p {
    color: rgba(255,255,255,0.8);
    font-size: 0.9375rem;
    margin-bottom: 8px;
}

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
}

.footer-bottom p {
    color: rgba(255,255,255,0.5);
    font-size: 0.875rem;
}

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

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

.animate-fadeInUp {
    animation: fadeInUp 0.8s ease forwards;
}

.animate-fadeIn {
    animation: fadeIn 0.6s ease forwards;
}

/* Scroll animations */
.scroll-reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
    .about-grid {
        gap: 48px;
    }

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

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 48px;
    }

    .footer-brand {
        grid-column: 1 / -1;
    }
}

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

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

    .mobile-menu {
        display: block;
    }

    .hero {
        padding: 100px 24px 60px;
    }

    .hero-stats {
        flex-direction: column;
        gap: 32px;
    }

    .stat-number {
        font-size: 2.5rem;
    }

    .services {
        padding: 80px 0;
    }

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

    .about {
        padding: 80px 0;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .about-visual {
        order: -1;
    }

    .about-card {
        max-width: 300px;
    }

    .portfolio {
        padding: 80px 0;
    }

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

    .process {
        padding: 80px 0;
    }

    .process-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .cta {
        padding: 60px 0;
    }

    .contact {
        padding: 80px 0;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .contact-form {
        padding: 32px;
    }

    .footer {
        padding: 60px 0 32px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
        text-align: center;
    }

    .footer-brand img {
        margin: 0 auto 16px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

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

    .hero-cta .btn {
        width: 100%;
    }

    .section-header {
        margin-bottom: 48px;
    }

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

    .service-card {
        padding: 32px 24px;
    }

    .logo img {
        height: 28px;
    }
}