/* =========================================
   VARIABLES & DESIGN TOKENS
   ========================================= */
:root {
    /* Color Palette */
    --clr-bg: #f8fafc;
    --clr-bg-alt: #ffffff;
    --clr-primary: #0f172a;      /* Deep Blue */
    --clr-accent: #06b6d4;       /* Electric Cyan */
    --clr-accent-hover: #0891b2;
    --clr-lime: #84cc16;         /* Lime Green Accent */
    --clr-whatsapp: #25d366;     /* Emerald Green */
    --clr-whatsapp-hover: #1da851;
    --clr-text-main: #334155;
    --clr-text-light: #94a3b8;
    --clr-white: #ffffff;
    --clr-border: #e2e8f0;

    /* Typography */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing & Layout */
    --max-width: 1200px;
    --transition: all 0.3s ease;
    --radius: 8px;
    --radius-lg: 16px;
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* =========================================
   RESET & BASE
   ========================================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--clr-primary);
    line-height: 1.2;
}

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

ul {
    list-style: none;
}

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

.container {
    width: 90%;
    max-width: var(--max-width);
    margin: 0 auto;
}

/* =========================================
   BUTTONS
   ========================================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    font-family: var(--font-body);
}

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

.btn-primary:hover {
    background-color: #1e293b;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-accent {
    background-color: var(--clr-accent);
    color: var(--clr-white);
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-accent:hover {
    background-color: var(--clr-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -5px rgba(6, 182, 212, 0.4);
}

.btn-outline {
    background-color: transparent;
    color: var(--clr-primary);
    border-color: var(--clr-primary);
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

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

/* =========================================
   HEADER & NAV
   ========================================= */
.header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid var(--clr-border);
    padding: 1rem 0;
}

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

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

.logo-img {
    height: 45px;
    width: auto;
    display: block;
    transition: var(--transition);
}

.logo:hover .logo-img {
    transform: scale(1.03);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

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

.nav-link {
    font-weight: 500;
    color: var(--clr-text-main);
    position: relative;
}

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

.nav-link:hover {
    color: var(--clr-primary);
}

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

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--clr-primary);
    cursor: pointer;
}

/* =========================================
   HERO SECTION
   ========================================= */
.hero {
    padding-top: 120px;
    padding-bottom: 4rem;
    background: linear-gradient(135deg, var(--clr-bg) 0%, #e2e8f0 100%);
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    color: var(--clr-primary);
}

.hero-content h1 span {
    color: var(--clr-accent);
    position: relative;
    display: inline-block;
}

.hero-content h1 span::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 0;
    width: 100%;
    height: 8px;
    background-color: var(--clr-lime);
    opacity: 0.4;
    z-index: -1;
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--clr-text-main);
    margin-bottom: 2.5rem;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.hero-image {
    position: relative;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-img-marketing {
    width: 100%;
    max-width: 550px;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    animation: float 6s ease-in-out infinite;
}

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

/* =========================================
   SOCIAL PROOF
   ========================================= */
.social-proof {
    padding: 3rem 0;
    background-color: var(--clr-white);
    border-bottom: 1px solid var(--clr-border);
}

.social-proof-title {
    text-align: center;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--clr-text-light);
    margin-bottom: 2rem;
    font-weight: 600;
}

.logos-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 4rem;
    opacity: 0.6;
    filter: grayscale(100%);
}

.logo-item {
    font-size: 3rem;
    color: var(--clr-primary);
    transition: var(--transition);
}

.client-logo {
    font-size: 1.5rem;
    font-family: var(--font-heading);
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.client-logo i {
    font-size: 2.2rem;
}

.logo-item:hover {
    filter: grayscale(0%);
    opacity: 1;
    color: var(--clr-accent);
}

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

.section-header {
    text-align: center;
    margin-bottom: 4rem;
    max-width: 600px;
    margin-inline: auto;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--clr-text-light);
}

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

.service-card {
    background-color: var(--clr-white);
    padding: 3rem 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--clr-border);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--clr-accent);
}

.service-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(6, 182, 212, 0.1);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--clr-accent);
    margin-bottom: 1.5rem;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background-color: var(--clr-accent);
    color: var(--clr-white);
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

/* =========================================
   PORTFOLIO SECTION
   ========================================= */
.portfolio {
    padding: 6rem 0;
    background-color: var(--clr-white);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.portfolio-item {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    background-color: var(--clr-bg);
    border: 1px solid var(--clr-border);
}

.portfolio-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--clr-accent);
}

.portfolio-image {
    width: 100%;
    aspect-ratio: 4/3;
    overflow: hidden;
}

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

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.05);
}

.portfolio-content {
    padding: 1.5rem;
}

.portfolio-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--clr-primary);
}

.portfolio-content p {
    color: var(--clr-text-light);
    font-size: 0.95rem;
}

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

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.contact-info p {
    font-size: 1.1rem;
    color: var(--clr-text-light);
    margin-bottom: 2rem;
}

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

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.1rem;
    font-weight: 500;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--clr-accent);
}

.contact-form-wrapper {
    background-color: var(--clr-white);
    padding: 3rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--clr-border);
}

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--clr-primary);
}

.form-group input[type="text"],
.form-group input[type="tel"],
.form-group textarea {
    padding: 1rem;
    border: 1px solid var(--clr-border);
    border-radius: var(--radius);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
    background-color: var(--clr-white);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--clr-accent);
    box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.2);
}

.checkbox-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 0.5rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-weight: 400;
}

.checkbox-label input[type="checkbox"] {
    width: 1.2rem;
    height: 1.2rem;
    accent-color: var(--clr-accent);
}

.btn-submit {
    background-color: var(--clr-primary);
    color: var(--clr-white);
    padding: 1.2rem;
    font-size: 1.1rem;
    margin-top: 1rem;
    grid-column: 1 / -1;
}

.btn-submit:hover {
    background-color: var(--clr-accent);
    box-shadow: 0 10px 20px -5px rgba(6, 182, 212, 0.4);
}

/* =========================================
   FOOTER
   ========================================= */
.footer {
    background-color: var(--clr-primary);
    color: var(--clr-white);
    padding: 4rem 0 0;
}

.footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand .logo {
    margin-bottom: 1.5rem;
    display: inline-flex;
}

.footer-brand p {
    color: var(--clr-text-light);
    margin-bottom: 1.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    font-size: 1.2rem;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--clr-accent);
    transform: translateY(-3px);
}

.footer h4 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: var(--clr-white);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.footer-links a {
    color: var(--clr-text-light);
}

.footer-links a:hover {
    color: var(--clr-accent);
    padding-left: 5px;
}

.footer-contact p {
    color: var(--clr-text-light);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-contact i {
    color: var(--clr-accent);
    font-size: 1.2rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1.5rem 0;
    text-align: center;
    color: var(--clr-text-light);
    font-size: 0.9rem;
}

/* =========================================
   FLOATING WHATSAPP BUTTON
   ========================================= */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: var(--clr-whatsapp);
    color: var(--clr-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.2rem;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    transition: var(--transition);
}

.whatsapp-float:hover {
    background-color: var(--clr-whatsapp-hover);
    transform: scale(1.1);
}

/* =========================================
   MEDIA QUERIES
   ========================================= */
@media (max-width: 992px) {
    .hero-container,
    .contact-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .hero-content {
        text-align: center;
        order: 2;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-content h1 {
        font-size: 2.8rem;
    }
    
    .hero-image {
        order: 1;
        max-width: 400px;
        margin: 0 auto;
    }

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

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--clr-white);
        flex-direction: column;
        padding: 2rem;
        box-shadow: var(--shadow-md);
        clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
        transition: clip-path 0.4s ease-in-out;
        gap: 1.5rem;
    }

    .nav-menu.active {
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    }

    .nav-list {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
    }

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

    .checkbox-group {
        grid-template-columns: 1fr;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .logos-grid {
        gap: 2rem;
    }
    
    .logo-item {
        font-size: 2.5rem;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2.2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .contact-form-wrapper {
        padding: 1.5rem;
    }
    
    .whatsapp-float {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
        font-size: 1.8rem;
    }
}