/* ===================================
   CSS Variables - Dark Theme
   =================================== */
:root {
    /* Colors */
    --color-bg: #0A0F18;
    --color-surface: #141A22;
    --color-surface-light: #1C2630;
    --color-text-main: #FFFFFF;
    --color-text-muted: #A9B1B8;
    --color-accent: #F2B705;
    --color-accent-hover: #D9A404;
    --color-accent-blue: #1A73E8;
    --color-border: #2A3440;

    /* Typography */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-accent: 0 4px 20px rgba(242, 183, 5, 0.3);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--color-bg);
    color: var(--color-text-main);
    line-height: 1.6;
    font-size: 16px;
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

button {
    border: none;
    cursor: pointer;
    font-family: inherit;
    transition: var(--transition-normal);
}

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

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--color-text-main), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-semibold);
    font-size: 1rem;
    transition: all var(--transition-normal);
    cursor: pointer;
}

.btn-primary {
    background-color: var(--color-surface-light);
    color: var(--color-text-main);
    border: 1px solid var(--color-border);
}

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

.btn-accent {
    background: linear-gradient(135deg, var(--color-accent), #FFC520);
    color: #000;
    font-weight: var(--font-weight-bold);
}

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

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

.btn-secondary:hover {
    background-color: var(--color-accent);
    color: #000;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* ===================================
   Header
   =================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: var(--spacing-md) 0;
    transition: all var(--transition-normal);
}

.header.scrolled {
    background-color: rgba(10, 15, 24, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-sm) 0;
}

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

.logo img {
    height: 50px;
    transition: var(--transition-normal);
}

.header.scrolled .logo img {
    height: 40px;
}

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

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

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

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

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

.nav-toggle {
    display: none;
    background: transparent;
    color: var(--color-text-main);
    font-size: 1.5rem;
    padding: 0.5rem;
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: 80px;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../img/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: -2;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(10, 15, 24, 0.9), rgba(26, 115, 232, 0.2));
    z-index: -1;
}

.hero-content {
    text-align: center;
    z-index: 1;
    max-width: 900px;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: var(--font-weight-extrabold);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
    animation: fadeInUp 0.8s ease;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 1s ease;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1.2s ease;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===================================
   Services Section
   =================================== */
.services {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-bg);
}

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

.service-card {
    background-color: var(--color-surface);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    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-accent), var(--color-accent-blue));
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

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

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

.service-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--color-accent), #FFC520);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #000;
    margin-bottom: var(--spacing-md);
}

.service-title {
    font-size: 1.375rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
}

.service-description {
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* ===================================
   Why Us Section
   =================================== */
.why-us {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-surface);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.benefit-item {
    text-align: center;
    padding: var(--spacing-lg);
}

.benefit-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-accent-blue), #4A9FFF);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--color-text-main);
    margin: 0 auto var(--spacing-md);
    transition: var(--transition-normal);
}

.benefit-item:hover .benefit-icon {
    transform: rotate(360deg) scale(1.1);
}

.benefit-title {
    font-size: 1.25rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
}

.benefit-description {
    color: var(--color-text-muted);
}

/* ===================================
   About Section
   =================================== */
.about {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-bg);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.about-text h2 {
    margin-bottom: var(--spacing-md);
}

.about-text p {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.about-text strong {
    color: var(--color-accent);
}

.about-text .btn {
    margin-top: var(--spacing-md);
}

.about-image {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(242, 183, 5, 0.1), rgba(26, 115, 232, 0.1));
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ===================================
   Contact Section
   =================================== */
.contact {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-surface);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
}

.contact-form {
    background-color: var(--color-surface-light);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-main);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-main);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition-normal);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(242, 183, 5, 0.1);
}

.form-group textarea {
    resize: vertical;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-info-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--color-surface-light);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    transition: var(--transition-normal);
}

.contact-info-item:hover {
    border-color: var(--color-accent);
    transform: translateX(5px);
}

.contact-info-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--color-accent), #FFC520);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #000;
    flex-shrink: 0;
}

.contact-info-content h4 {
    font-size: 1.125rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: 0.25rem;
}

.contact-info-content p,
.contact-info-content a {
    color: var(--color-text-muted);
    line-height: 1.6;
}

.contact-info-content a:hover {
    color: var(--color-accent);
}

.contact-map {
    margin-top: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
}

.contact-map iframe {
    display: block;
    width: 100%;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background-color: var(--color-bg);
    padding: var(--spacing-2xl) 0 var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo {
    height: 50px;
    margin-bottom: var(--spacing-sm);
}

.footer-description {
    color: var(--color-text-muted);
    line-height: 1.6;
}

.footer-title {
    font-size: 1.125rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    color: var(--color-accent);
}

.footer-links li,
.footer-contact li {
    margin-bottom: var(--spacing-xs);
}

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

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

.footer-contact li {
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

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

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

.social-links a {
    width: 40px;
    height: 40px;
    background-color: var(--color-surface-light);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-main);
    transition: var(--transition-normal);
}

.social-links a:hover {
    background: linear-gradient(135deg, var(--color-accent), #FFC520);
    color: #000;
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    color: var(--color-text-muted);
}

/* ===================================
   Floating WhatsApp Button
   =================================== */
.whatsapp-float {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #25D366, #128C7E);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #fff;
    box-shadow: var(--shadow-lg);
    z-index: 999;
    transition: var(--transition-normal);
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
}

@keyframes pulse {

    0%,
    100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
    }

    50% {
        box-shadow: 0 0 0 20px rgba(37, 211, 102, 0);
    }
}

/* ===================================
   Chat Widget
   =================================== */
.chat-toggle {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-accent-blue), #4A9FFF);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: #fff;
    box-shadow: var(--shadow-lg);
    z-index: 999;
}

.chat-toggle:hover {
    transform: scale(1.1);
}

.chat-widget {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 350px;
    max-height: 500px;
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
    z-index: 998;
    display: none;
    flex-direction: column;
    overflow: hidden;
}

.chat-widget.active {
    display: flex;
}

.chat-header {
    background: linear-gradient(135deg, var(--color-accent-blue), #4A9FFF);
    padding: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #fff;
}

.chat-header-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: var(--font-weight-semibold);
}

.chat-close {
    background: transparent;
    color: #fff;
    font-size: 1.25rem;
    padding: 0.25rem;
}

.chat-body {
    flex: 1;
    padding: var(--spacing-md);
    overflow-y: auto;
    background-color: var(--color-surface-light);
}

.chat-message {
    margin-bottom: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    max-width: 80%;
}

.bot-message {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
}

.chat-footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    display: flex;
    gap: var(--spacing-xs);
}

.chat-input {
    flex: 1;
    padding: 0.75rem;
    background-color: var(--color-surface-light);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-main);
    font-family: inherit;
}

.chat-send {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-accent), #FFC520);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #000;
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: rgba(10, 15, 24, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        justify-content: flex-start;
        padding: var(--spacing-xl);
        transform: translateX(-100%);
        transition: transform var(--transition-normal);
    }

    .nav.active {
        transform: translateX(0);
    }

    .nav-list {
        flex-direction: column;
        gap: var(--spacing-md);
        width: 100%;
    }

    .nav-list li {
        width: 100%;
        text-align: center;
    }

    .nav-toggle {
        display: block;
    }

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

    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
    }

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

    .whatsapp-float {
        bottom: 90px;
        right: 20px;
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }

    .chat-toggle {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }

    .chat-widget {
        width: calc(100% - 40px);
        right: 20px;
    }
}

@media (max-width: 480px) {
    .services-grid {
        grid-template-columns: 1fr;
    }

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