@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap');

:root {
    --primary-color: #d32f2f; /* Deerma Red */
    --primary-hover: #b71c1c;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(255, 255, 255, 0.18);
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.025);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

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

html {
    scroll-behavior: smooth;
    font-family: 'Outfit', sans-serif;
    color: var(--text-dark);
}

body {
    background-color: var(--bg-light);
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

/* --- Navbar --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    padding: 1rem 0;
    box-shadow: var(--shadow-sm);
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo span {
    color: var(--primary-color);
}

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

.nav-links a {
    font-weight: 500;
    font-size: 1.05rem;
    position: relative;
    transition: color 0.3s;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

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

.btn-primary {
    background-color: var(--primary-color);
    color: var(--bg-white);
    padding: 0.8rem 1.8rem;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    display: inline-block;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(211, 47, 47, 0.3);
}

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

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../images/hero_bg.png');
    background-size: cover;
    background-position: center;
    z-index: -2;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(255,255,255,0.9) 0%, rgba(255,255,255,0.4) 60%, rgba(255,255,255,0) 100%);
    z-index: -1;
}

.hero-content {
    max-width: 600px;
}

.hero-tag {
    display: inline-block;
    background: rgba(211, 47, 47, 0.1);
    color: var(--primary-color);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

/* --- About Section --- */
.section {
    padding: 6rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.section-subtitle {
    color: var(--text-light);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* --- Products Section --- */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.product-card {
    background: var(--bg-white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.4s ease;
    position: relative;
    group: hover;
}

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

.product-img {
    height: 300px;
    width: 100%;
    overflow: hidden;
    background-color: #f0f0f0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.product-img img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    transition: transform 0.6s ease;
}

.product-card:hover .product-img img {
    transform: scale(1.08);
}

.product-info {
    padding: 2rem;
}

.product-category {
    font-size: 0.85rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.product-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.product-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    font-weight: 600;
    transition: gap 0.3s ease;
}

.product-card:hover .product-link {
    gap: 0.8rem;
}

/* --- Features Section --- */
.features {
    background-color: var(--bg-white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    text-align: center;
}

.feature-item {
    padding: 2rem;
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: rgba(211, 47, 47, 0.1);
    color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    transition: all 0.3s ease;
}

.feature-item:hover .feature-icon {
    background: var(--primary-color);
    color: white;
    transform: rotateY(180deg);
}

.feature-item h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.feature-item p {
    color: var(--text-light);
    line-height: 1.6;
}

/* --- App Promo --- */
.promo {
    background: linear-gradient(135deg, #1f2937, #111827);
    color: white;
    border-radius: 30px;
    padding: 4rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 4rem;
    box-shadow: var(--shadow-lg);
}

.promo-content {
    max-width: 50%;
}

.promo h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.promo p {
    color: #9ca3af;
    font-size: 1.1rem;
    margin-bottom: 2rem;
    line-height: 1.6;
}

/* --- Footer --- */
footer {
    background-color: #111827;
    color: white;
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-about .logo {
    color: white;
    margin-bottom: 1.5rem;
}

.footer-about p {
    color: #9ca3af;
    line-height: 1.6;
    max-width: 400px;
}

.footer-links h4 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-links a {
    color: #9ca3af;
    transition: color 0.3s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: #9ca3af;
    font-size: 0.9rem;
}

/* --- Animations --- */
.fade-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

/* --- Responsive --- */
@media (max-width: 992px) {
    .promo {
        flex-direction: column;
        text-align: center;
        padding: 3rem 2rem;
    }
    .promo-content {
        max-width: 100%;
    }
    .hero h1 {
        font-size: 3rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .hero {
        padding-top: 100px;
    }
    .hero-overlay {
        background: linear-gradient(to right, rgba(255,255,255,0.95) 0%, rgba(255,255,255,0.85) 100%);
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}