:root {
    /* --- TEMA DARK (Por defecto) --- */
    --bg-main: #141619;
    --bg-gradient: radial-gradient(circle at top center, #1a2a3a 0%, #0f1214 80%);
    --text-main: #e0e0e0;
    --text-title: #ffffff;
    --text-muted: rgba(255, 255, 255, 0.6);
    --text-extra-muted: rgba(255, 255, 255, 0.4);
    --card-bg: rgba(20, 25, 30, 0.85);
    --card-border: rgba(0, 210, 255, 0.3);
    --card-hover-border: rgba(0, 210, 255, 0.5);
    --card-shadow: rgba(0, 210, 255, 0.1);
    --propuesta-bg: rgba(30, 35, 40, 0.9);
    --propuesta-border: rgba(255, 255, 255, 0.1);
    --cyan-primary: #0dcaf0;
    --green-accent: #00ff9d;
    --voto-box-bg: rgba(0, 0, 0, 0.3);
    --voto-count-color: #00ff9d;
    --filter-border: rgba(255, 255, 255, 0.2);
    --filter-text: rgba(255, 255, 255, 0.7);
    --filter-active-bg: rgba(0, 210, 255, 0.2);
    --input-bg: rgba(0, 0, 0, 0.3);
    --input-border: rgba(255, 255, 255, 0.15);
    --shadow-color: rgba(0, 0, 0, 0.5);
    --modal-bg: #1a1d21;
    --modal-border: #2d3238;
}

[data-theme='light'] {
    /* --- TEMA LIGHT --- */
    --bg-main: #f8f9fa;
    --bg-gradient: radial-gradient(circle at top center, #ffffff 0%, #f0f2f5 80%);
    --text-main: #212529;
    --text-title: #1a1d21;
    --text-muted: #495057;
    --text-extra-muted: #6c757d;
    --card-bg: #ffffff;
    --card-border: rgba(0, 0, 0, 0.1);
    --card-hover-border: #00768a;
    --card-shadow: rgba(0, 0, 0, 0.05);
    --propuesta-bg: #ffffff;
    --propuesta-border: rgba(0, 0, 0, 0.1);
    --cyan-primary: #00768a;
    --green-accent: #198754;
    --voto-box-bg: #f1f3f5;
    --voto-count-color: #198754;
    --filter-border: #dee2e6;
    --filter-text: #495057;
    --filter-active-bg: rgba(0, 118, 138, 0.1);
    --input-bg: #ffffff;
    --input-border: #ced4da;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --modal-bg: #ffffff;
    --modal-border: #dee2e6;
}

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

h1,
h2,
h3,
h4,
h5,
h6,
.text-white {
    color: var(--text-title) !important;
}

.tech-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    padding: 1.5rem;
    margin-bottom: 1rem;
    box-shadow: 0 4px 15px var(--shadow-color);
}

.propuesta-card {
    background: var(--propuesta-bg);
    border: 1px solid var(--propuesta-border);
    border-radius: 12px;
    padding: 1.25rem;
    margin-bottom: 1rem;
    transition: all 0.3s;
}

.propuesta-card:hover {
    border-color: var(--card-hover-border);
    box-shadow: 0 5px 20px var(--card-shadow);
}

.voto-box {
    background: var(--voto-box-bg);
    border-radius: 10px;
    padding: 0.75rem;
    text-align: center;
    min-width: 70px;
}

.voto-count {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--voto-count-color);
    line-height: 1;
}

.voto-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    color: var(--text-extra-muted);
}

.btn-votar {
    background: linear-gradient(135deg, var(--cyan-primary), var(--green-accent));
    border: none;
    color: #fff;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    transition: all 0.3s;
}

[data-theme='light'] .btn-votar {
    color: #fff;
}

.btn-votar:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 15px var(--card-shadow);
}

.btn-votar:disabled {
    background: var(--filter-border);
    color: var(--text-extra-muted);
    cursor: not-allowed;
}

.cat-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    background: color-mix(in srgb, var(--cat-color, var(--cyan-primary)), transparent 85%);
    color: var(--cat-color, var(--cyan-primary));
    border: 1px solid color-mix(in srgb, var(--cat-color, var(--cyan-primary)), transparent 60%);
}

[data-theme='light'] .cat-badge {
    background: color-mix(in srgb, var(--cat-color, var(--cyan-primary)), transparent 92%);
    color: color-mix(in srgb, var(--cat-color, var(--cyan-primary)), black 30%);
    border: 1px solid color-mix(in srgb, var(--cat-color, var(--cyan-primary)), black 15%);
}

.cat-filter {
    display: inline-block;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    margin: 0.25rem;
    font-size: 0.8rem;
    text-decoration: none;
    border: 1px solid var(--filter-border);
    color: var(--filter-text);
    transition: all 0.2s;
}

.cat-filter:hover,
.cat-filter.active {
    background: var(--filter-active-bg);
    border-color: var(--cyan-primary);
    color: var(--text-title);
}

.stat-box {
    text-align: center;
    padding: 1rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--cyan-primary);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-extra-muted);
    text-transform: uppercase;
}

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

.form-control:focus,
.form-select:focus {
    background: var(--input-bg);
    border-color: var(--cyan-primary);
    box-shadow: 0 0 10px var(--card-shadow);
    color: var(--text-main);
}

.form-control::placeholder {
    color: var(--text-extra-muted);
}

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

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

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

.alert-success {
    background: rgba(25, 135, 84, 0.2);
    border-color: #198754;
    color: #75b798;
}

[data-theme='light'] .alert-success {
    background: #d1e7dd;
    color: #0f5132;
}

.alert-danger {
    background: rgba(220, 53, 69, 0.2);
    border-color: #dc3545;
    color: #ea868f;
}

[data-theme='light'] .alert-danger {
    background: #f8d7da;
    color: #842029;
}

.alert-warning {
    background: rgba(255, 193, 7, 0.2);
    border-color: #ffc107;
    color: #ffda6a;
}

[data-theme='light'] .alert-warning {
    background: #fff3cd;
    color: #664d03;
}

/* 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);
}

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

.text-muted-dynamic {
    color: var(--text-muted);
}

.text-extra-muted {
    color: var(--text-extra-muted);
}

.info-card-warning {
    border-color: rgba(255, 193, 7, 0.3);
}

[data-theme='light'] .info-card-warning {
    border-color: #ffeeba !important;
    background-color: #fff3cd !important;
}

[data-theme='light'] .info-card-warning .text-warning {
    color: #856404 !important;
}

[data-theme='light'] .info-card-warning .text-white {
    color: #000 !important;
}

[data-theme='light'] .content-wrapper .text-muted,
[data-theme='light'] .content-wrapper small {
    color: var(--text-extra-muted) !important;
}

/* Ajustes específicos para legibilidad en modo claro */
[data-theme='light'] .text-warning {
    color: #856404 !important;
}