:root {
    --primary: #0f172a; /* Navy */
    --accent: #f97316;  /* Orange */
    --bg-light: #f8fafc;
    --text-dark: #1e293b;
    --text-muted: #64748b;
    --white: #ffffff;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.6;
}

/* Navbar */
nav {
    background-color: var(--white);
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    top: 0;
    z-index: 1000;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
    letter-spacing: -1px;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    margin-left: 20px;
    font-weight: 500;
    transition: color 0.3s;
}

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

/* Hero Section */
header {
    text-align: center;
    padding: 4rem 5%;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: var(--white);
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.container {
    max-width: 1200px;
    margin: -2rem auto 4rem auto;
    padding: 0 5%;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
    padding: 0 0 30px 0; 
}

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

.card-img {
    width: 100%;
    height: 250px;
    background-color: #e2e8f0;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 1rem;
}

.card-img img {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
}

.transparent-image-card {
    background-color: white !important;
}

.card-content {
    padding: .5rem;
    flex-grow: 1;
}

.card-tag {
    background: #f1f5f9;
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 8px;
    border-radius: 4px;
    text-transform: uppercase;
}

.card-title {
    font-size: 1.25rem;
    margin: 0.5rem 0;
    font-weight: 700;
}

.card-description {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1.5rem 1.5rem 1.5rem;
}

.price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.btn-buy {
    background-color: var(--accent);
    color: var(--white);
    text-decoration: none;
    padding: 10px 20px;
    margin-inline: 25px;
    border-radius: 6px;
    text-align: center;
    font-weight: 600;
    transition: filter 0.3s;
}

.btn-buy:hover {
    filter: brightness(1.1);
}

footer {
    background: var(--text-dark);
    color: var(--white);
    padding: 60px 5% 30px;
    text-align: center;
}

footer a {
    color: var(--white);
}

footer a:hover {
    color: var(--accent);
    text-decoration: underline;
}

@media (max-width: 600px) {
    header h1 { font-size: 1.8rem; }
    .nav-links a { font-size: 0.9rem; }
}

.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    background: none;
    border: none;
    gap: 6px;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: var(--primary);
    transition: 0.3s;
}

/* Mobile (Max 768px) */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .nav-links {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--white);
        padding: 0;
        
        /* Hidden */
        opacity: 0;
        visibility: hidden;
        transform: translateY(-20px);
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        pointer-events: none;
        box-shadow: 0 10px 15px rgba(0,0,0,0.1);
    }

    .nav-links.active {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
        padding: 1.5rem 0;
        pointer-events: auto;
        padding-inline: 20px;
    }

    .nav-links a {
        margin: 10px 0;
        opacity: 0;
        transform: translateX(-10px);
        transition: 0.3s ease;
    }

    .nav-links.active a {
        opacity: 1;
        transform: translateX(0);
        transition-delay: 0.2s;
    }

    .menu-toggle.is-active .bar:nth-child(2) { opacity: 0; }
    .menu-toggle.is-active .bar:nth-child(1) { transform: translateY(9px) rotate(45deg); }
    .menu-toggle.is-active .bar:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }
}