/* =========================================
   Base Styles & Variables
   ========================================= */
:root {
    --bg-color: #F7F7F7; /* Off-white */
    --text-color: #111111; /* Deep black */
    --accent-color: #000000;
    --border-color: rgba(0, 0, 0, 0.08);
    --font-primary: 'Open Sans', 'Google Sans', sans-serif; /* Fallback to Open Sans as Google Sans isn't perfectly public via fonts.googleapis */
}

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

html {
    scroll-behavior: smooth;
}

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

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

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 300;
    margin-bottom: 3rem;
    letter-spacing: -0.02em;
}

.section-title.center {
    text-align: center;
}

/* =========================================
   Typography
   ========================================= */
h1 { font-size: clamp(3rem, 6vw, 5rem); font-weight: 300; letter-spacing: -0.04em; line-height: 1.1; margin-bottom: 1rem; }
h2 { font-weight: 300; }
h3 { font-size: 1.25rem; font-weight: 400; margin-bottom: 0.5rem; }
h4 { font-size: 1.1rem; font-weight: 600; margin-bottom: 0.25rem; }
p { color: #555; }

/* =========================================
   Animations
   ========================================= */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 1s cubic-bezier(0.2, 0.8, 0.2, 1), transform 1s cubic-bezier(0.2, 0.8, 0.2, 1);
}

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

/* =========================================
   Section A: Hero
   ========================================= */
.hero-section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding-top: 2rem;
    position: relative;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 4rem;
    z-index: 10;
}

.logo {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 0.1em;
}

nav a {
    color: var(--text-color);
    text-decoration: none;
    margin-left: 2rem;
    font-size: 0.9rem;
    font-weight: 400;
    transition: opacity 0.3s ease;
}

nav a:hover {
    opacity: 0.5;
}

.hero-content {
    max-width: 800px;
    margin-bottom: 4rem;
    z-index: 10;
}

.video-container {
    width: 100%;
    border-radius: 0;
    overflow: hidden;
    line-height: 0;
}

.video-container video {
    width: 100%;
    height: auto;
    display: block;
}

/* =========================================
   Section B: Top Sellers
   ========================================= */
.top-sellers-section {
    padding: 8rem 0;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 3rem 2rem;
}

.product-card {
    cursor: pointer;
}

.product-card img {
    border-radius: 4px;
    margin-bottom: 1.5rem;
    transition: transform 0.5s ease, box-shadow 0.5s ease;
    aspect-ratio: 4/5;
    object-fit: cover;
    background: #eee;
}

.product-card:hover img {
    transform: scale(1.02);
    box-shadow: 0 15px 30px rgba(0,0,0,0.08);
}

/* =========================================
   Section C: Premium Offerings
   ========================================= */
.premium-section {
    padding: 8rem 0;
    position: relative;
}

.bg-texture-1 {
    background-image: url('assets/bg_texture_1_1781552265136.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.premium-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 4rem;
}

.premium-card .image-wrapper {
    position: relative;
    border-radius: 4px;
    margin-bottom: 2rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    overflow: hidden;
    aspect-ratio: 3/4;
}

.premium-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.price-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.premium-card:hover .image-wrapper img {
    transform: scale(1.05);
}

.premium-card:hover .price-overlay {
    opacity: 1;
}

/* =========================================
   Section D: Enterprise
   ========================================= */
.enterprise-section {
    padding: 8rem 0;
}

.enterprise-section .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: center;
}

.packages-list {
    margin-top: 3rem;
}

.package-item {
    padding: 2rem 0;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
}

.package-icon {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
    color: var(--accent-color);
}

.package-text h4 {
    margin-bottom: 0.25rem;
}

.package-item:first-child {
    border-top: 1px solid var(--border-color);
}

/* =========================================
   Section E: Clients
   ========================================= */
.clients-section {
    padding: 8rem 0;
}

.bg-texture-2 {
    background-image: linear-gradient(rgba(247, 247, 247, 0.9), rgba(247, 247, 247, 0.9)), url('https://images.unsplash.com/photo-1561089489-0268579cfd86?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.review-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    padding: 3rem 2rem;
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,0.5);
    text-align: center;
}

.client-logo {
    display: flex;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--accent-color);
}

.review-text {
    font-style: italic;
    margin-bottom: 1.5rem;
    color: #333;
}

.client-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: #777;
}

/* =========================================
   Section F: Contact
   ========================================= */
.contact-section {
    padding: 8rem 0;
    background-color: #fff;
}

.contact-wrapper {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.contact-wrapper h2 {
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

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

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 1rem;
    border: none;
    border-bottom: 1px solid var(--border-color);
    background: transparent;
    font-family: inherit;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-bottom-color: var(--accent-color);
}

.contact-form button {
    margin-top: 1rem;
    padding: 1.2rem;
    background: var(--text-color);
    color: #fff;
    border: none;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s ease;
}

.contact-form button:hover {
    background: #333;
}

/* =========================================
   Footer
   ========================================= */
footer {
    padding: 4rem 0;
    border-top: 1px solid var(--border-color);
    background-color: #fff;
}

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

/* =========================================
   Responsive
   ========================================= */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        gap: 1.5rem;
    }
    nav a {
        margin: 0 1rem;
    }
    .enterprise-section .container {
        grid-template-columns: 1fr;
        gap: 4rem;
    }
    .premium-grid {
        grid-template-columns: 1fr;
    }
}