:root {
    --bg: #0f1115;
    --card-bg: #181c24;
    --card-border: rgba(255, 255, 255, 0.08);
    --primary: #0066ff;
    --primary-hover: #0052cc;
    --accent: #00d2ff;
    --whatsapp: #25d366;
    --text: #f3f4f6;
    --text-dim: #9ca3af;
}

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: 'Plus Jakarta Sans', sans-serif;
    margin: 0;
    line-height: 1.6;
    scroll-behavior: smooth;
}

h1, h2, h3 { 
    font-weight: 700;
    letter-spacing: -0.02em;
}

/* NAVBAR & LOGO */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 8%;
    background: rgba(15, 17, 21, 0.85);
    backdrop-filter: blur(16px);
    position: sticky; 
    top: 0; 
    z-index: 1000;
    border-bottom: 1px solid var(--card-border);
}

.logo-img {
    max-height: 48px; /* Un poco más alto para mayor presencia */
    width: auto;
    display: block;
    /* Elimina el fondo blanco si la imagen tiene contraste claro/oscuro */
    mix-blend-mode: lighten; 
    filter: brightness(1.2); /* Resalta el logotipo en el fondo oscuro */
}

.logo-text {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--text);
    text-decoration: none;
}

.nav-links a { 
    color: var(--text-dim); 
    text-decoration: none; 
    margin-left: 25px; 
    transition: 0.3s; 
    font-size: 0.95rem; 
    font-weight: 500;
}

.nav-links a:hover { color: var(--text); }
.btn-admin {
    border: 1px solid var(--card-border);
    padding: 8px 16px;
    border-radius: 8px;
}

/* HERO */
.hero {
    padding: 90px 8%;
    text-align: center;
    background: radial-gradient(circle at 50% 20%, rgba(0, 102, 255, 0.12) 0%, transparent 60%);
}

.badge { 
    background: rgba(0, 102, 255, 0.1); 
    color: var(--accent); 
    padding: 6px 16px; 
    border-radius: 50px; 
    font-size: 0.85rem; 
    font-weight: 600;
    border: 1px solid rgba(0, 210, 255, 0.2); 
}

.hero h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); margin: 25px 0; color: #fff; }
.hero h1 span { color: var(--accent); }
.hero p { max-width: 620px; margin: 0 auto 35px; color: var(--text-dim); font-size: 1.1rem; }

.btn-primary { 
    background: var(--primary); 
    color: #fff; 
    padding: 12px 28px; 
    border-radius: 8px; 
    text-decoration: none; 
    font-weight: 600; 
    transition: 0.3s; 
    display: inline-block; 
}
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-2px); }

.btn-secondary {
    background: transparent;
    color: var(--text);
    padding: 12px 28px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    border: 1px solid var(--card-border);
    margin-left: 10px;
    transition: 0.3s;
}
.btn-secondary:hover { background: rgba(255,255,255,0.05); }

/* FEATURES */
.f-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; padding: 40px 8%; }
.f-item { 
    background: var(--card-bg); 
    padding: 30px; 
    border-radius: 12px; 
    border: 1px solid var(--card-border); 
}
.f-item h3 { color: var(--text); margin-top: 0; font-size: 1.2rem; }
.f-item p { color: var(--text-dim); margin-bottom: 0; font-size: 0.95rem; }

/* CATALOGO */
.catalog-section { padding: 60px 8%; }
.section-title { text-align: center; margin-bottom: 40px; }
.section-title h2 span { color: var(--accent); }
.section-title p { color: var(--text-dim); }

.container { 
    display: grid; 
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); 
    gap: 25px; 
}

.card {
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--card-border);
    overflow: hidden;
    transition: 0.3s;
}
.card:hover { border-color: rgba(0, 102, 255, 0.4); transform: translateY(-4px); }

.img-container { 
    height: 240px; 
    overflow: hidden; 
    background: #000; 
}

.img-container img { 
    width: 100%; 
    height: 100%; 
    object-fit: contain; /* Muestra el producto completo sin recortar */
    padding: 10px;
    box-sizing: border-box;
    cursor: pointer;
    transition: 0.4s;
}
.card:hover img { transform: scale(1.03); }

.card-info { padding: 20px; }
.card-info h3 { margin: 0 0 10px; font-size: 1.1rem; }
.price-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 15px; }
.price { font-size: 1.3rem; font-weight: 700; color: var(--text); }
.stock { font-size: 0.8rem; color: var(--text-dim); background: rgba(255,255,255,0.05); padding: 4px 8px; border-radius: 4px; }

.btn-buy {
    display: block; 
    text-align: center; 
    background: var(--whatsapp); 
    color: #fff;
    padding: 10px; 
    border-radius: 8px; 
    text-decoration: none;
    font-weight: 600; 
    font-size: 0.9rem;
    transition: 0.3s;
}
.btn-buy:hover { opacity: 0.9; }

/* LOGIN PAGE */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg);
}

.login-card {
    background: var(--card-bg);
    width: 100%;
    max-width: 380px;
    padding: 35px;
    border-radius: 16px;
    border: 1px solid var(--card-border);
    text-align: center;
}

.login-header p { color: var(--text-dim); font-size: 0.85rem; margin-top: 10px; }

.input-group { text-align: left; margin-bottom: 18px; }
.input-group label { display: block; color: var(--text-dim); font-size: 0.8rem; font-weight: 600; margin-bottom: 6px; }
.input-group input {
    width: 100%;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--card-border);
    padding: 10px 14px;
    border-radius: 8px;
    color: white;
    box-sizing: border-box;
}
.input-group input:focus { outline: none; border-color: var(--primary); }

.btn-login {
    width: 100%;
    background: var(--primary);
    color: white;
    padding: 12px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.3s;
}
.btn-login:hover { background: var(--primary-hover); }

/* PANEL ADMIN */
.admin-page { padding: 40px 8%; }
.admin-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 30px; }
.btn-logout { color: #ff4d4d; text-decoration: none; margin-left: 15px; font-weight: 600; }

.admin-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.form-card, .stock-card { background: var(--card-bg); padding: 25px; border-radius: 12px; border: 1px solid var(--card-border); }

.stock-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; gap: 10px; }
.stock-row input[type="number"] { width: 60px; padding: 6px; background: #000; border: 1px solid var(--card-border); color: #fff; border-radius: 6px; }
.btn-update { background: var(--primary); color: #fff; border: none; padding: 6px 12px; border-radius: 6px; cursor: pointer; }

/* MODAL */
.modal {
    display: none; position: fixed; z-index: 2000;
    left: 0; top: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.9); align-items: center; justify-content: center;
    flex-direction: column;
}
.modal-content { max-width: 80%; max-height: 80vh; border-radius: 8px; }
.close { position: absolute; top: 20px; right: 30px; color: white; font-size: 35px; cursor: pointer; }

footer { text-align: center; padding: 40px; color: var(--text-dim); font-size: 0.85rem; border-top: 1px solid var(--card-border); }