:root {
    /* --- TEMA DARK (Por defecto) --- */
    --bg-body-gradient: radial-gradient(circle at top center, #1a2a3a 0%, #0f1214 80%);
    --bg-main: #0f1214;
    --text-main: #e0e0e0;
    --text-title: #ffffff;
    --text-muted-color: #e0e0e0;

    --card-bg: rgba(20, 25, 30, 0.8);
    --card-border: rgba(0, 210, 255, 0.3);
    --card-shadow: rgba(0, 210, 255, 0.05);

    --input-bg: rgba(0, 0, 0, 0.3);
    --input-border: rgba(255, 255, 255, 0.15);
    --input-text: #ffffff;
    --input-focus-bg: rgba(0, 0, 0, 0.5);
    --input-focus-border: #00d2ff;
    --input-focus-shadow: rgba(0, 210, 255, 0.25);
    --input-placeholder: #6c757d;

    --accent-color: #00d2ff;
    --label-color: #00d2ff;
    --input-group-bg: rgba(255, 255, 255, 0.05);
    --input-group-border: rgba(255, 255, 255, 0.15);

    --btn-bg: rgba(0, 85, 164, 0.6);
    --btn-border: #00d2ff;
    --btn-text: #ffffff;
    --btn-hover-bg: #00d2ff;
    --btn-hover-text: #000000;

    --result-card-bg: rgba(15, 20, 25, 0.95);
    --result-card-border: #198754;
    --result-card-shadow: rgba(25, 135, 84, 0.15);
    --result-text-color: #00ff9d;
    --result-text-shadow: rgba(0, 255, 157, 0.5);

    --detail-card-bg: rgba(255, 255, 255, 0.03);
    --detail-border-color: rgba(255, 255, 255, 0.05);
    --detail-strong-color: #ffffff;

    --fixed-cost-color: #0dcaf0;
    --variable-cost-color: #ffc107;

    --header-border-bottom: #6c757d;
    /* Equivalent to border-secondary */

    --shadow-color: rgba(0, 0, 0, 0.5);
    --modal-bg: #1c1e21;
    --modal-border: #444;
}

[data-theme='light'] {
    /* --- TEMA LIGHT --- */
    --bg-body-gradient: #f8f9fa;
    /* No gradient, solid background */
    --bg-main: #f8f9fa;
    --text-main: #212529;
    --text-title: #1a1d21;
    --text-muted-color: #6c757d;

    --card-bg: #ffffff;
    --card-border: #dee2e6;
    --card-shadow: rgba(0, 0, 0, 0.1);

    --input-bg: #ffffff;
    --input-border: #ced4da;
    --input-text: #495057;
    --input-focus-bg: #ffffff;
    --input-focus-border: #00768a;
    --input-focus-shadow: rgba(0, 118, 138, 0.25);
    --input-placeholder: #adb5bd;

    --accent-color: #00768a;
    --label-color: #00768a;
    --input-group-bg: #e9ecef;
    --input-group-border: #ced4da;

    --btn-bg: #00768a;
    --btn-border: #00768a;
    --btn-text: #ffffff;
    --btn-hover-bg: #005c6b;
    --btn-hover-text: #ffffff;

    --result-card-bg: #e8f5e9;
    --result-card-border: #198754;
    --result-card-shadow: rgba(25, 135, 84, 0.1);
    --result-text-color: #198754;
    --result-text-shadow: none;

    --detail-card-bg: #f8f9fa;
    --detail-border-color: #dee2e6;
    --detail-strong-color: #212529;

    --fixed-cost-color: #00768a;
    /* Darker cyan */
    --variable-cost-color: #78652a;
    /* Darker yellow/warning as requested in history */

    --header-border-bottom: #dee2e6;

    --shadow-color: rgba(0, 0, 0, 0.15);
    --modal-bg: #ffffff;
    --modal-border: #dee2e6;
}

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

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

/* Shadow only in dark mode or handled via variable if needed, cleaned up for light mode consistency */
[data-theme='dark'] h1,
[data-theme='dark'] h2,
[data-theme='dark'] h3,
[data-theme='dark'] h4,
[data-theme='dark'] h5 {
    text-shadow: 0 0 10px rgba(0, 210, 255, 0.3);
}

.content-wrapper .text-muted {
    color: var(--text-muted-color) !important;
}

/* 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(--accent-color);
}

/* --- WRAPPER --- */
.content-wrapper {
    max-width: 1600px;
    margin: 0 auto;
}

/* Header fixes for full width */
.navbar .container-fluid,
header .container-fluid,
nav .container-fluid {
    max-width: none !important;
    width: 100% !important;
}

/* --- TARJETA TECH GENERAL --- */
.tech-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    box-shadow: 0 0 20px var(--card-shadow);
    padding: 2rem;
    margin-bottom: 2rem;
}

/* --- FORMULARIOS --- */
.form-control {
    background-color: var(--input-bg);
    border: 1px solid var(--input-border);
    color: var(--input-text);
    font-size: 1.1rem;
    padding: 0.7rem;
}

[data-theme='dark'] .form-control:focus {
    box-shadow: 0 0 0 0.25rem var(--input-focus-shadow);
}

.form-control:focus {
    background-color: var(--input-focus-bg);
    border-color: var(--input-focus-border);
    color: var(--input-text);
}

.form-control::placeholder {
    color: var(--input-placeholder);
    opacity: 0.8;
}

.form-label {
    color: var(--label-color);
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
    margin-bottom: 0.4rem;
    font-weight: 600;
}

/* Iconos dentro de inputs */
.input-group-text {
    background-color: var(--input-group-bg);
    border: 1px solid var(--input-group-border) !important;
    /* Force override bootstrap */
    border-right: none !important;
    color: var(--accent-color);
}

.input-group .form-control {
    border-left: none;
}

/* --- BOTONES --- */
.btn-action {
    background: var(--btn-bg);
    border: 1px solid var(--btn-border);
    color: var(--btn-text);
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 1px;
    transition: all 0.3s;
}

.btn-action:hover {
    background: var(--btn-hover-bg);
    color: var(--btn-hover-text);
    box-shadow: 0 0 15px var(--accent-color);
    border-color: var(--btn-border);
}

[data-theme='light'] .btn-action:hover {
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
}

/*Icons color override*/
.tco-icon {
    color: var(--accent-color) !important;
}

/* --- TARJETA RESULTADO FINAL --- */
.resultado-final-card {
    background: var(--result-card-bg);
    border: 2px solid var(--result-card-border);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 0 30px var(--result-card-shadow) inset;
    margin-bottom: 2rem;
}

.resultado-final-card h2 {
    color: var(--text-title);
    font-weight: 400;
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
    text-shadow: none;
    /* Reset shadow for inner elements if handled by container or var */
}

.resultado-valor-total {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--result-text-color);
    text-shadow: 0 0 20px var(--result-text-shadow);
}

[data-theme='light'] .resultado-valor-total {
    text-shadow: none;
}

/* --- TARJETAS DETALLE --- */
.coste-detalle-card {
    background: var(--detail-card-bg);
    border-left: 4px solid;
    padding: 1.5rem;
    border-radius: 0 8px 8px 0;
    height: 100%;
    color: var(--text-muted-color);
}

/* Tipo Fijo */
.card-fijo {
    border-color: var(--fixed-cost-color);
}

.card-fijo h5 {
    color: var(--fixed-cost-color);
}

/* Tipo Variable */
.card-variable {
    border-color: var(--variable-cost-color);
}

.card-variable h5 {
    color: var(--variable-cost-color);
}

.coste-detalle-card strong {
    color: var(--detail-strong-color);
    font-weight: 600;
    float: right;
}

.coste-detalle-card p {
    border-bottom: 1px solid var(--detail-border-color);
    padding-bottom: 0.5rem;
    margin-bottom: 0.5rem;
}

.coste-detalle-card p:last-child {
    border-bottom: none;
}


/* Scoped Bootstrap Overrides */
.tco-section-title {
    color: var(--text-title);
    /* Was text-white */
    border-bottom: 1px solid var(--header-border-bottom) !important;
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
}

.tco-text-info {
    color: var(--fixed-cost-color) !important;
}

.tco-text-warning {
    color: var(--variable-cost-color) !important;
}