/* ===================================
   CSS Variables & Reset
   =================================== */
:root {
    /* Colors */
    --color-primary: #1a5490;
    --color-secondary: #2c7bb6;
    --color-accent: #4a9fd8;
    --color-orange: #f39c12;
    --color-green: #27ae60;
    --color-dark: #2c3e50;
    --color-light: #ecf0f1;
    --color-white: #ffffff;
    
    /* Typography */
    --font-display: 'Poppins', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(26, 84, 144, 0.1);
    --shadow-md: 0 4px 16px rgba(26, 84, 144, 0.15);
    --shadow-lg: 0 8px 32px rgba(26, 84, 144, 0.2);
}

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

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

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

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

/* ===================================
   Utilities
   =================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-subtitle {
    display: inline-block;
    color: var(--color-orange);
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--spacing-xs);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

.section-description {
    max-width: 600px;
    margin: 0 auto;
    color: var(--color-dark);
    opacity: 0.8;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    font-family: var(--font-display);
    font-weight: 600;
    border-radius: 50px;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    transition: width var(--transition-normal);
    z-index: -1;
}

.btn:hover::before {
    width: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary {
    background: var(--color-orange);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ===================================
   WhatsApp Float Button
   =================================== */
.whatsapp-float {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 1.8rem;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    z-index: 1000;
    transition: all var(--transition-normal);
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.6);
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    }
    50% {
        box-shadow: 0 4px 30px rgba(37, 211, 102, 0.7);
    }
}

/* ===================================
   Header & Navigation
   =================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 100;
    transition: all var(--transition-normal);
}

.header.scroll-header {
    box-shadow: var(--shadow-md);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-primary);
    transition: color var(--transition-fast);
}

.nav-logo i {
    font-size: 1.5rem;
    color: var(--color-orange);
}

.nav-logo:hover {
    color: var(--color-secondary);
}

.nav-list {
    display: flex;
    gap: var(--spacing-md);
}

.nav-link {
    font-weight: 600;
    color: var(--color-dark);
    position: relative;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--color-orange);
    transition: width var(--transition-normal);
}

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

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

.nav-toggle,
.nav-close {
    display: none;
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 80px;
    background: linear-gradient(135deg, #0f3460 0%, #1a5490 50%, #2c7bb6 100%);
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(243, 156, 18, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(74, 159, 216, 0.15) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
    padding: var(--spacing-lg) 0;
}

.hero-text {
    animation: fadeInUp 1s ease;
}

.hero-title-small {
    display: block;
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 600;
    color: var(--color-light);
    margin-bottom: 0.5rem;
    opacity: 0.9;
}

.hero-title-large {
    display: block;
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 800;
    color: var(--color-white);
    line-height: 1.1;
    background: linear-gradient(135deg, var(--color-white) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    color: var(--color-light);
    font-size: 1.1rem;
    margin: var(--spacing-md) 0;
    max-width: 500px;
    line-height: 1.8;
}

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

.hero-visual {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    animation: fadeInRight 1s ease 0.3s both;
}

.hero-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: var(--spacing-md);
    border-radius: 20px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all var(--transition-normal);
}

.hero-card:nth-child(3) {
    grid-column: 1 / -1;
}

.hero-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.15);
}

.hero-card-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-sm);
    background: var(--color-orange);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--color-white);
}

.hero-card h3 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 0.5rem;
}

.hero-card p {
    color: var(--color-light);
}

.hero-scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
}

.scroll-down {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-white);
    font-size: 0.9rem;
    animation: bounce 2s infinite;
}

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

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

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

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

.service-card {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

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

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

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

.service-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    transition: all var(--transition-normal);
}

.service-card:hover .service-icon {
    transform: rotate(10deg) scale(1.1);
}

.service-title {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.service-description {
    color: var(--color-dark);
    opacity: 0.8;
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

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

.service-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-dark);
    font-size: 0.9rem;
}

.service-features i {
    color: var(--color-green);
    font-size: 0.8rem;
}

/* ===================================
   About Section
   =================================== */
.about {
    padding: var(--spacing-xl) 0;
    background: var(--color-white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.about-text .section-subtitle {
    text-align: left;
}

.about-text .section-title {
    text-align: left;
    margin-bottom: var(--spacing-md);
}

.about-description {
    color: var(--color-dark);
    opacity: 0.8;
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.about-feature {
    display: flex;
    gap: var(--spacing-sm);
}

.about-feature-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--color-orange), #e67e22);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 1.3rem;
    flex-shrink: 0;
}

.about-feature-text h4 {
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 0.3rem;
}

.about-feature-text p {
    color: var(--color-dark);
    opacity: 0.8;
    font-size: 0.95rem;
}

.about-visual {
    position: relative;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.stat-card {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    padding: var(--spacing-md);
    border-radius: 20px;
    text-align: center;
    color: var(--color-white);
    transition: all var(--transition-normal);
}

.stat-card:nth-child(3) {
    grid-column: 1 / -1;
}

.stat-card:hover {
    transform: translateY(-10px);
}

.stat-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
}

/* ===================================
   Contact Section
   =================================== */
.contact {
    padding: var(--spacing-xl) 0;
    background: var(--color-light);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-lg);
}

.contact-info h3 {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.contact-text {
    color: var(--color-dark);
    opacity: 0.8;
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.contact-detail {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
}

.contact-detail-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 1.3rem;
    flex-shrink: 0;
}

.contact-detail-text h4 {
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 0.3rem;
}

.contact-detail-text a {
    color: var(--color-secondary);
    transition: color var(--transition-fast);
}

.contact-detail-text a:hover {
    color: var(--color-orange);
}

.contact-detail-text p {
    color: var(--color-dark);
    opacity: 0.8;
}

.social-links {
    margin-top: var(--spacing-md);
}

.social-links h4 {
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.social-link {
    display: inline-flex;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 1.3rem;
    transition: all var(--transition-normal);
}

.social-link:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

/* Contact Form */
.contact-form {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

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

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

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

.form-group input,
.form-group select,
.form-group textarea {
    padding: 1rem;
    border: 2px solid var(--color-light);
    border-radius: 10px;
    font-family: var(--font-body);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-secondary);
    box-shadow: 0 0 0 3px rgba(44, 123, 182, 0.1);
}

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

.btn-submit {
    grid-column: 1 / -1;
    justify-self: start;
}

.form-message {
    grid-column: 1 / -1;
    padding: var(--spacing-sm);
    border-radius: 10px;
    text-align: center;
    font-weight: 600;
    display: none;
}

.form-message.success {
    display: block;
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.form-message.error {
    display: block;
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.footer-logo i {
    font-size: 1.5rem;
    color: var(--color-orange);
}

.footer-about p {
    opacity: 0.9;
    line-height: 1.8;
}

.footer-links h4,
.footer-services h4,
.footer-contact h4 {
    font-family: var(--font-display);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.footer-links ul,
.footer-services ul,
.footer-contact ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer-links a,
.footer-services a {
    color: var(--color-white);
    opacity: 0.8;
    transition: all var(--transition-fast);
}

.footer-links a:hover,
.footer-services a:hover {
    opacity: 1;
    padding-left: 5px;
}

.footer-contact ul li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    opacity: 0.9;
}

.footer-contact i {
    color: var(--color-orange);
}

.footer-contact a {
    color: var(--color-white);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom p {
    opacity: 0.8;
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    transition: all var(--transition-normal);
}

.footer-social a:hover {
    background: var(--color-orange);
    transform: translateY(-5px);
}

/* ===================================
   Responsive Design
   =================================== */
@media screen and (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text {
        order: 1;
    }
    
    .hero-visual {
        order: 2;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-text .section-subtitle,
    .about-text .section-title {
        text-align: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media screen and (max-width: 768px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background: var(--color-white);
        padding: var(--spacing-lg) var(--spacing-md);
        box-shadow: var(--shadow-lg);
        transition: right var(--transition-normal);
    }
    
    .nav-menu.show-menu {
        right: 0;
    }
    
    .nav-list {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .nav-toggle,
    .nav-close {
        display: block;
        font-size: 1.5rem;
        color: var(--color-primary);
        cursor: pointer;
    }
    
    .nav-close {
        position: absolute;
        top: 1rem;
        right: 1rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .contact-form {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
    
    .whatsapp-float {
        bottom: 1rem;
        right: 1rem;
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
}

@media screen and (max-width: 480px) {
    .hero-visual {
        grid-template-columns: 1fr;
    }
    
    .hero-card:nth-child(3) {
        grid-column: 1;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .stat-card:nth-child(3) {
        grid-column: 1;
    }
}

/* ===================================
   Animations & Transitions
   =================================== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

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

/* Smooth scrolling for all browsers */
@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}