/* =========================================
   CSS Reset & Variables
========================================= */

:root {
    /* Color Palette */
    --primary-blue: #0052FF;
    --primary-hover: #0043D6;
    --bg-white: #FFFFFF;
    --bg-light: #F8F9FA;
    --bg-dark: #0B0D17;
    
    --text-black: #1A1A1A;
    --text-gray: #4A5568;
    --text-light-gray: #A0AEC0;
    --border-color: #E2E8F0;

    --font-heading: 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Box Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-floating: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    --radius-md: 12px;
    --radius-lg: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--text-gray);
    background-color: var(--bg-white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-black);
    line-height: 1.2;
    font-weight: 700;
}

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

ul {
    list-style: none;
}

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

/* =========================================
   Utility Classes
========================================= */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-white { color: var(--bg-white) !important; }
.text-white-50 { color: rgba(255,255,255,0.7) !important; }
.text-blue { color: var(--primary-blue) !important; }

.bg-light { background-color: var(--bg-light); }
.bg-dark { background-color: var(--bg-dark); }
.bg-white { background-color: var(--bg-white); }

.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }
.mb-4 { margin-bottom: 2rem; }

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

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

/* =========================================
   Buttons
========================================= */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    gap: 0.5rem;
}

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

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

.btn-outline {
    background-color: transparent;
    border-color: var(--border-color);
    color: var(--text-black);
}

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

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

.btn-white:hover {
    background-color: rgba(255, 255, 255, 0.9);
    color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-full {
    width: 100%;
}

.btn-whatsapp {
    background-color: rgba(37, 211, 102, 0.1);
    color: #25D366;
    border-color: transparent;
}

.btn-whatsapp:hover {
    background-color: #25D366;
    color: white;
}

.btn-hover-scale:hover {
    transform: scale(1.02);
}

/* =========================================
   Header Layout
========================================= */

.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 0;
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0,0,0,0.05);
    transition: var(--transition);
}

.navbar.scrolled {
    padding: 0.75rem 0;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-sm);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-black);
    letter-spacing: -0.05em;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    font-weight: 500;
    color: var(--text-gray);
}

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

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-black);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background-color: var(--bg-white);
    z-index: 2000;
    padding: 2rem;
    transition: right 0.4s ease;
    display: flex;
    flex-direction: column;
}

.mobile-menu.open {
    right: 0;
}

.close-menu {
    align-self: flex-end;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-black);
    margin-bottom: 2rem;
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.mobile-nav-links a {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-black);
}

/* =========================================
   Hero Section
========================================= */

.hero {
    padding: 10rem 0 6rem;
    overflow: hidden;
}

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

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background-color: var(--bg-light);
    color: var(--primary-blue);
    border-radius: 100px;
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(0, 82, 255, 0.1);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
    color: var(--text-black);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-gray);
    margin-bottom: 2.5rem;
    max-width: 90%;
}

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

.hero-image {
    position: relative;
    perspective: 1000px;
}

.header-preview-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-floating);
    transform: rotateY(-5deg) rotateX(5deg);
    transition: transform 0.5s ease;
}

.header-preview-card:hover {
    transform: rotateY(0) rotateX(0);
}

.dots {
    background-color: #E2E8F0;
    padding: 0.75rem 1rem;
    display: flex;
    gap: 0.5rem;
}

.dots span {
    display: block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: #CBD5E1;
}

.dots span:nth-child(1) { background-color: #FF5F56; }
.dots span:nth-child(2) { background-color: #FFBD2E; }
.dots span:nth-child(3) { background-color: #27C93F; }

.header-preview-card img {
    width: 100%;
    display: block;
}

/* =========================================
   Features Section
========================================= */

.features {
    padding: 8rem 0;
}

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

.feature-card {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    border-radius: var(--radius-md);
    transition: var(--transition);
    margin-bottom: 1rem;
    border: 1px solid transparent;
}

.feature-card:hover, .feature-card.active-card {
    background-color: var(--bg-white);
    box-shadow: var(--shadow-md);
    border-color: var(--border-color);
}

.feature-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(0, 82, 255, 0.1);
    border-radius: 12px;
}

.feature-text h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.feature-text p {
    font-size: 1rem;
}

.rounded-image {
    border-radius: var(--radius-lg);
    object-fit: cover;
    height: 100%;
    min-height: 500px;
}

/* =========================================
   Portfolio Section
========================================= */

.portfolio {
    padding: 8rem 0;
}

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

.portfolio-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    aspect-ratio: 4/3;
    cursor: pointer;
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent 60%);
    display: flex;
    align-items: flex-end;
    padding: 2rem;
    opacity: 0;
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-overlay h4 {
    color: white;
    font-size: 1.5rem;
    transform: translateY(20px);
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-overlay h4 {
    transform: translateY(0);
}

/* =========================================
   Pricing Section
========================================= */

.pricing {
    padding: 8rem 0;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    align-items: stretch;
}

.pricing-card {
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 3rem 2rem;
    box-shadow: var(--shadow-md);
    position: relative;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    text-align: left;
    display: flex;
    flex-direction: column;
}

.pricing-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.pricing-card.popular {
    background-color: var(--primary-blue);
    color: white;
    border-color: var(--primary-blue);
    transform: scale(1.05);
    z-index: 10;
}

.pricing-card.popular:hover {
    transform: scale(1.05) translateY(-5px);
}

.popular-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background-color: #FFFFFF;
    color: var(--primary-blue);
    padding: 0.25rem 1rem;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    box-shadow: var(--shadow-sm);
}

.tier-name {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.price {
    display: flex;
    align-items: baseline;
    margin-bottom: 2rem;
    color: var(--text-black);
}

.price .currency {
    font-size: 1.5rem;
    font-weight: 600;
}

.price .amount {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.price .period {
    color: var(--text-gray);
    margin-left: 0.5rem;
}

.features-list-ul {
    margin-bottom: 2.5rem;
    flex-grow: 1;
}

.features-list-ul li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    line-height: 1.4;
}

.check-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    color: var(--primary-blue);
}

.popular .check-icon {
    color: white;
}

/* =========================================
   Footer & Contact Section
========================================= */

.footer {
    padding: 6rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    margin-bottom: 6rem;
}

.footer-title {
    font-size: 3rem;
    color: white;
    margin-bottom: 1rem;
}

.footer-subtitle {
    color: var(--text-light-gray);
    font-size: 1.125rem;
}

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

.contact-item {
    display: flex;
    flex-direction: column;
}

.contact-label {
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    color: var(--text-light-gray);
    margin-bottom: 0.25rem;
}

.contact-link {
    font-size: 1.25rem;
    font-weight: 500;
    color: white;
}

.contact-link:hover {
    color: var(--primary-blue);
}

.footer-form-wrapper {
    background-color: #1A1C23;
    padding: 3rem;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255,255,255,0.05);
}

.contact-form .form-group {
    margin-bottom: 1.5rem;
}

.contact-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-light-gray);
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 1rem;
    border-radius: var(--radius-md);
    background-color: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    color: white;
    font-family: inherit;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    background-color: rgba(255,255,255,0.1);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: var(--text-light-gray);
    font-size: 0.875rem;
}

.social-links {
    display: flex;
    gap: 1.5rem;
}

.social-links a:hover {
    color: white;
}

/* =========================================
   Responsive Design
========================================= */

@media (min-width: 992px) {
    .d-none-desktop { display: none !important; }
}

@media (max-width: 991px) {
    .d-none-mobile { display: none !important; }
    .d-block-mobile { display: block !important; }
    
    .nav-links { display: none; }
    .menu-toggle { display: block; }

    .hero-container,
    .features-grid,
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .hero {
        padding: 8rem 0 4rem;
        text-align: center;
    }

    .hero-actions {
        justify-content: center;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin-left: auto;
        margin-right: auto;
    }

    .pricing-card.popular {
        transform: scale(1);
    }

    .pricing-card.popular:hover {
        transform: translateY(-5px);
    }

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

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-form-wrapper {
        padding: 2rem 1.5rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}