:root {
    --bg-dark: #070b14;
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-border: rgba(255, 255, 255, 0.08);
    --accent-green: #39ff14;
    --text-main: #ffffff;
    --text-muted: #8892b0;
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --radius: 12px;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-body);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.header {
    text-align: center;
    padding: 60px 0 40px;
    border-bottom: 1px solid var(--card-border);
    margin-bottom: 40px;
}

.logo-img {
    max-width: 400px;
    width: 100%;
    height: auto;
    margin-bottom: 20px;
    filter: drop-shadow(0 0 10px rgba(255,255,255,0.2));
}

.subtitle {
    color: var(--accent-green);
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: 4px;
    font-size: 1rem;
}

.controls {
    display: flex;
    justify-content: center;
    margin-bottom: 40px;
}

.search-input {
    width: 100%;
    max-width: 500px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: white;
    padding: 15px 25px;
    border-radius: var(--radius);
    font-size: 1rem;
    font-family: var(--font-body);
    outline: none;
    transition: all 0.3s ease;
}

.search-input:focus {
    border-color: var(--accent-green);
    box-shadow: 0 0 15px rgba(57, 255, 20, 0.2);
}

.loading {
    text-align: center;
    padding: 50px;
    color: var(--text-muted);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255,255,255,0.1);
    border-radius: 50%;
    border-top-color: var(--accent-green);
    animation: spin 1s ease-in-out infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 25px;
    padding-bottom: 80px;
}

.product-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 16px;
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease, border-color 0.3s ease;
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-5px);
    border-color: rgba(57, 255, 20, 0.5);
}

.vial-container {
    position: relative;
    width: 100%;
    aspect-ratio: 1 / 1;
    margin-bottom: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.vial-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 10px 15px rgba(0,0,0,0.5));
}

/* CSS Dynamic Overlay on the Vial */
.vial-overlay {
    position: absolute;
    top: 55%;
    left: 50%;
    width: 80%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.overlay-name {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.1rem;
    color: #ffffff;
    line-height: 1.1;
    margin-bottom: 8px;
    text-transform: uppercase;
    text-shadow: 0 2px 4px rgba(0,0,0,0.8);
}

.overlay-dosage {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 0.75rem;
    color: #ffffff;
    border: 1px solid rgba(255,255,255,0.5);
    padding: 2px 6px;
    border-radius: 4px;
    display: inline-block;
}

/* Card details below image */
.product-info {
    text-align: center;
    margin-top: auto;
}

.product-name {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    margin-bottom: 5px;
    color: white;
}

.product-dosage {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.product-price {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--accent-green);
    font-weight: 700;
}

.price-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 400;
    margin-left: 5px;
}

.variant-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin-bottom: 15px;
}

.variant-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--card-border);
    color: var(--text-muted);
    padding: 4px 10px;
    border-radius: var(--radius);
    font-size: 0.8rem;
    font-family: var(--font-body);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.variant-btn:hover {
    border-color: rgba(255, 255, 255, 0.3);
    color: white;
}

.variant-btn.active {
    background: rgba(57, 255, 20, 0.1);
    border-color: var(--accent-green);
    color: var(--accent-green);
}