:root {
    /* --- TEMA DARK (Por defecto) --- */
    --bg-main: radial-gradient(circle at top center, #1a2a3a 0%, #0f1214 80%);
    --text-main: #e0e0e0;
    --text-title: #ffffff;
    --card-bg: rgba(20, 25, 30, 0.8);
    --card-border: rgba(0, 210, 255, 0.3);
    --cyan-primary: #00d2ff;
    --shadow-color: rgba(0, 210, 255, 0.1);
    --input-bg: rgba(0, 0, 0, 0.5);
    --input-focus-bg: rgba(0, 0, 0, 0.7);
    --placeholder-color: #8899aa;
    --item-bg: rgba(20, 25, 30, 0.6);
    --item-hover-bg: rgba(0, 210, 255, 0.1);
    --success-accent: #198754;
    --warning-accent: #ffc107;
    --danger-accent: #dc3545;
    --info-accent: #0dcaf0;
    --badge-bg: #212529;
    --header-shadow: rgba(0, 0, 0, 0.5);
    --title-glow: 0 0 10px rgba(0, 210, 255, 0.3);
}

[data-theme='light'] {
    /* --- TEMA LIGHT --- */
    --bg-main: #f8f9fa;
    --text-main: #212529;
    --text-title: #1a1d21;
    --card-bg: #ffffff;
    --card-border: rgba(0, 0, 0, 0.15);
    --cyan-primary: #005662;
    /* Cyan más oscuro para legibilidad */
    --shadow-color: rgba(0, 0, 0, 0.1);
    --input-bg: #ffffff;
    --input-focus-bg: #ffffff;
    --placeholder-color: #495057;
    /* Placeholder mucho más oscuro */
    --item-bg: #ffffff;
    --item-hover-bg: rgba(0, 86, 98, 0.05);
    --success-accent: #0f5132;
    --warning-accent: #664d03;
    --danger-accent: #842029;
    --info-accent: #055160;
    --badge-bg: #e9ecef;
    --header-shadow: rgba(0, 0, 0, 0.15);
    --title-glow: none;
}

body {
    background: var(--bg-main) !important;
    color: var(--text-main);
    min-height: 100vh;
}

h1,
h2,
h3,
h4,
h5 {
    color: var(--text-title);
    text-shadow: var(--title-glow);
}

.text-muted {
    color: var(--text-main) !important;
    opacity: 0.9;
}

/* --- CONTENEDORES HUD --- */
.tech-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    box-shadow: 4px 4px 15px var(--shadow-color);
    padding: 2rem;
    margin-bottom: 2rem;
}

/* --- BARRA DE BÚSQUEDA STICKY --- */
.search-container {
    position: sticky;
    top: 56px;
    background: var(--card-bg);
    border-bottom: 2px solid var(--cyan-primary);
    backdrop-filter: blur(10px);
    padding: 1.5rem 0;
    z-index: 100;
    box-shadow: var(--header-shadow);
    margin-bottom: 2rem;
}

.form-control,
.form-select {
    background-color: var(--input-bg);
    border: 1px solid var(--card-border);
    color: var(--text-main);
    border-radius: 0.5rem;
}

.form-control:focus,
.form-select:focus {
    background-color: var(--input-focus-bg);
    border-color: var(--cyan-primary);
    box-shadow: 0 0 15px var(--shadow-color);
    color: var(--text-main);
}

.form-control::-webkit-input-placeholder {
    color: var(--placeholder-color) !important;
    opacity: 1 !important;
}

.form-control::-moz-placeholder {
    color: var(--placeholder-color) !important;
    opacity: 1 !important;
}

.form-control:-ms-input-placeholder {
    color: var(--placeholder-color) !important;
    opacity: 1 !important;
}

.form-control::placeholder {
    color: var(--placeholder-color) !important;
    opacity: 1 !important;
}

[data-theme='light'] select.form-select {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e");
}

.form-select option {
    background-color: var(--card-bg);
    color: var(--text-main);
}

.form-label {
    color: var(--cyan-primary);
    font-weight: 600;
    font-size: 0.9rem;
}

.input-group-text {
    background-color: var(--input-bg);
    border: 1px solid var(--card-border);
    border-right: none;
    color: var(--cyan-primary);
}

/* --- LISTA DE ACCESORIOS --- */
.categoria-header {
    color: var(--cyan-primary);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 1px solid var(--card-border);
    padding-bottom: 0.5rem;
    margin-top: 2rem;
    display: flex;
    align-items: center;
}

.accesorio-item {
    background-color: var(--item-bg);
    border: 1px solid var(--card-border);
    color: var(--text-main);
    transition: all 0.2s ease;
    border-radius: 8px;
    margin-bottom: 0.5rem;
    text-decoration: none;
    display: flex;
    overflow: hidden;
}

.accesorio-item:hover {
    background-color: var(--item-hover-bg);
    border-color: var(--cyan-primary);
    color: var(--text-title);
    transform: translateX(5px);
}

.accesorio-imagen {
    width: 120px;
    height: 120px;
    object-fit: cover;
    border-right: 1px solid var(--card-border);
    background: #000;
}

.no-image-placeholder {
    width: 120px;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--input-bg);
    color: var(--placeholder-color);
    font-size: 2rem;
    border-right: 1px solid var(--card-border);
}

/* --- ALERTAS --- */
.alert-hud {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    border-left: 4px solid;
}

.alert-success {
    background: rgba(25, 135, 84, 0.1);
    color: var(--success-accent);
    border-color: var(--success-accent);
}

.alert-danger {
    background: rgba(220, 53, 69, 0.1);
    color: var(--danger-accent);
    border-color: var(--danger-accent);
}

.alert-warning {
    background: rgba(255, 193, 7, 0.1);
    color: var(--warning-accent);
    border-color: var(--warning-accent);
}

.alert-info {
    background: rgba(13, 202, 240, 0.1);
    color: var(--info-accent);
    border-color: var(--info-accent);
}

.btn-action {
    background: var(--cyan-primary);
    border: 1px solid var(--cyan-primary);
    color: #fff;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 1px;
    transition: all 0.3s ease;
}

.btn-action:hover {
    background: transparent;
    color: var(--cyan-primary);
    box-shadow: 0 0 15px var(--shadow-color);
}

/* --- THEME TOGGLE --- */
.theme-toggle {
    position: fixed;
    top: 80px;
    right: 20px;
    width: 45px;
    height: 45px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 1000;
    box-shadow: 0 4px 15px var(--shadow-color);
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    transform: scale(1.1);
}

.theme-toggle i {
    font-size: 1.2rem;
    color: var(--cyan-primary);
}

/* --- REGLAS DE PROTECCIÓN MODO CLARO --- */
[data-theme='light'] .content-wrapper .text-info,
[data-theme='light'] .content-wrapper .text-success,
[data-theme='light'] .content-wrapper .text-warning,
[data-theme='light'] .content-wrapper .text-danger,
[data-theme='light'] .content-wrapper .btn-outline-info {
    font-weight: 600;
}

[data-theme='light'] .content-wrapper .text-success {
    color: var(--success-accent) !important;
}

[data-theme='light'] .content-wrapper .text-warning {
    color: var(--warning-accent) !important;
}

[data-theme='light'] .content-wrapper .text-info {
    color: var(--info-accent) !important;
}

[data-theme='light'] .content-wrapper .text-danger {
    color: var(--danger-accent) !important;
}

[data-theme='light'] .content-wrapper .btn-outline-info {
    color: var(--info-accent);
    border-color: var(--info-accent);
}

[data-theme='light'] .content-wrapper .btn-outline-info:hover {
    background-color: var(--info-accent);
    color: #fff;
}

/* Estilos de Tabla Temáticos */
.content-wrapper .table {
    color: var(--text-main);
}

.content-wrapper .table thead th {
    color: var(--cyan-primary);
    border-bottom: 2px solid var(--card-border);
    background-color: transparent;
}

.content-wrapper .table tbody td {
    border-bottom: 1px solid var(--card-border);
    background-color: transparent;
}

.content-wrapper .table-hover tbody tr:hover {
    background-color: var(--item-hover-bg);
}

[data-theme='light'] .content-wrapper .table {
    border-color: var(--card-border);
}

[data-theme='light'] .content-wrapper .table-hover tbody tr:hover {
    background-color: var(--item-hover-bg);
    color: var(--text-main);
}

[data-theme='light'] .content-wrapper .table th {
    border-bottom: 2px solid var(--card-border);
    color: var(--cyan-primary);
}

.tm-badge {
    background-color: var(--badge-bg);
    color: var(--text-main);
    border: 1px solid var(--card-border);
}

[data-theme='light'] .content-wrapper .border-secondary {
    border-color: var(--card-border) !important;
}

.border-top-success {
    border-top: 4px solid var(--success-accent) !important;
}

.border-top-warning {
    border-top: 4px solid var(--warning-accent) !important;
}

.btn-submit-success {
    background: rgba(25, 135, 84, 0.6);
    border-color: var(--success-accent);
    color: #fff;
}

.btn-submit-success:hover {
    background: var(--success-accent);
    color: #fff;
}

[data-theme='light'] .btn-submit-success {
    background: var(--success-accent);
    color: #fff;
}