:root {

    /* =========================
       COLORS
    ========================== */

    --bg-primary: #050505;
    --bg-secondary: #0b0b0b;
    --bg-card: #101010;
    --bg-hover: #151515;

    --border-primary: rgba(0, 255, 213, 0.18);
    --border-strong: rgba(0, 255, 213, 0.45);

    --text-primary: #ffffff;
    --text-secondary: #b5b5b5;
    --text-muted: #7a7a7a;

    --primary: #00ffd5;
    --primary-hover: #00c2a3;

    --secondary: #00bfff;

    --accent: #8b5cf6;
    --danger: #ff4d6d;
    --success: #00ff9f;
    --warning: #ffc857;

    /* =========================
       SHADOW
    ========================== */

    --shadow-soft:
        0 0 20px rgba(0, 255, 213, 0.08);

    --shadow-medium:
        0 0 30px rgba(0, 255, 213, 0.14);

    /* =========================
       RADIUS
    ========================== */

    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 22px;

    /* =========================
       TRANSITION
    ========================== */

    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;

    /* =========================
       CONTAINER
    ========================== */

    --container-width: 1400px;
}

/* =========================
   GLOBAL RESET
========================== */

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

/* =========================
   BODY
========================== */

body {
    overflow-x: hidden;

    background:
        radial-gradient(
            circle at top,
            rgba(0, 255, 213, 0.05),
            transparent 35%
        ),
        var(--bg-primary);

    color: var(--text-primary);

    font-family:
        'Segoe UI',
        sans-serif;

    min-height: 100vh;
}

/* =========================
   CONTAINER
========================== */

.container {

    width: 100%;

    max-width:
        var(--container-width);

    margin:
        auto;

    padding-inline:
        20px;
}

/* =========================
   BUTTON PRIMARY
========================== */

.btn-primary {

    background:
        var(--primary);

    color:
        #000;

    border:
        none;

    padding:
        12px 22px;

    border-radius:
        var(--radius-sm);

    font-weight:
        700;

    cursor:
        pointer;

    transition:
        var(--transition-normal);

    box-shadow:
        var(--shadow-soft);
}

.btn-primary:hover {

    background:
        var(--primary-hover);

    transform:
        translateY(-2px);

    box-shadow:
        var(--shadow-medium);
}

/* =========================
   BUTTON OUTLINE
========================== */

.btn-outline {

    background:
        transparent;

    color:
        var(--primary);

    border:
        1px solid var(--border-strong);

    padding:
        12px 22px;

    border-radius:
        var(--radius-sm);

    font-weight:
        700;

    cursor:
        pointer;

    transition:
        var(--transition-normal);
}

.btn-outline:hover {

    background:
        rgba(0,255,213,0.08);

    transform:
        translateY(-2px);
}

/* =========================
   CARD
========================== */

.card {

    background:
        linear-gradient(
            180deg,
            rgba(255,255,255,0.02),
            rgba(255,255,255,0.01)
        );

    border:
        1px solid var(--border-primary);

    border-radius:
        var(--radius-md);

    box-shadow:
        var(--shadow-soft);

    transition:
        var(--transition-normal);
}

.card:hover {

    border-color:
        var(--border-strong);

    transform:
        translateY(-4px);

    box-shadow:
        var(--shadow-medium);
}

/* =========================
   INPUT
========================== */

.input {

    width:
        100%;

    background:
        var(--bg-secondary);

    border:
        1px solid var(--border-primary);

    color:
        var(--text-primary);

    padding:
        14px 16px;

    border-radius:
        var(--radius-sm);

    outline:
        none;

    transition:
        var(--transition-fast);
}

.input:focus {

    border-color:
        var(--primary);

    box-shadow:
        0 0 0 3px rgba(0,255,213,0.1);
}
/* =========================
   PRODUCT CARD SYSTEM
========================= */

.product-grid {
    display: flex;
    justify-content: center;

    margin-top: 40px;

    max-width: 520px;

    margin-left: auto;
    margin-right: auto;

    padding: 30px;
}

.product-card {
    width: 100%;
    max-width: 100%;

    background: rgba(0, 15, 15, 0.95);
    border: 1px solid rgba(0, 255, 200, 0.15);
    border-radius: 20px;
    overflow: hidden;
    transition: 0.3s ease;
    position: relative;

    box-shadow:
        0 0 30px rgba(0, 255, 200, 0.08);
}

.product-card:hover {
    transform: translateY(-6px);
    border-color: rgba(0, 255, 200, 0.35);

    box-shadow:
        0 0 40px rgba(0, 255, 200, 0.15);
}

.product-card:hover .product-thumbnail img {
    transform: scale(1.04);
}

.product-thumbnail {
    width: 100%;
    aspect-ratio: 16 / 9;

    background: #071111;

    padding: 10px;

    overflow: hidden;

    border-radius: 18px;
}

.product-thumbnail img {
    width: 100%;
    height: 100%;

    display: block;

    object-fit: cover;
    object-position: center;

    transition: 0.4s ease;

    border-radius: 14px;
}

.product-content {
    padding: 22px;
    text-align: center;
}

.product-category {
    display: inline-block;

    padding: 6px 14px;

    border-radius: 999px;

    background:
        rgba(0, 255, 200, 0.08);

    color:
        #00ffe1;

    font-size:
        12px;

    margin-bottom:
        18px;

    border:
        1px solid rgba(0, 255, 200, 0.18);
}

.product-title {
    font-size: 18px;
    font-weight: 700;

    margin-bottom: 14px;

    color: white;
}

.product-description {
    font-size: 14px;

    color: #cbd5e1;

    line-height: 1.7;

    margin-bottom: 22px;
}

.product-price {
    font-size: 18px;

    font-weight: 800;

    color: #00ffe1;

    margin-bottom: 22px;
}

.product-actions {
    display: flex;

    gap: 10px;
}

.btn-buy,
.btn-detail {
    flex: 1;

    padding: 11px 18px;

    border-radius: 12px;

    font-weight: 700;

    font-size: 14px;

    cursor: pointer;

    transition: 0.3s ease;
}

.btn-buy {
    background: #00ffe1;

    color: black;

    border: none;
}

.btn-buy:hover {
    background: white;

    transform: translateY(-2px);
}

.btn-detail {
    background: transparent;

    border:
        1px solid rgba(0,255,225,0.4);

    color:
        #00ffe1;
}

.btn-detail:hover {
    background:
        rgba(0,255,225,0.08);

    transform:
        translateY(-2px);
}
.featured-wrapper {
    max-width: 760px;

    margin: 60px auto;

    padding: 40px;

    border: 1px solid rgba(0,255,200,0.25);

    border-radius: 28px;

    background:
        radial-gradient(
            circle at top,
            rgba(0,255,200,0.06),
            transparent 70%
        );

    box-shadow:
        0 0 40px rgba(0,255,200,0.08);
}