:root {
    --primary: #1a1a2e;
    --primary-light: #16213e;
    --accent: #e94560;
    --accent-hover: #ff6b6b;
    --surface: rgba(255, 255, 255, 0.95);
    --surface-glass: rgba(255, 255, 255, 0.85);
    --text: #1a1a2e;
    --text-muted: #6c757d;
    --border: rgba(0, 0, 0, 0.08);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center center;
    background-attachment: fixed;
    overflow: hidden;
    transition: opacity 0.3s ease;
}

/* ===== FONDOS SALON ===== */
body.salon.opcion01_01 { background-image: url("../img/salon_01_01.jpg"); }
body.salon.opcion01_02 { background-image: url("../img/salon_01_02.jpg"); }
body.salon.opcion01_03 { background-image: url("../img/salon_01_03.jpg"); }
body.salon.opcion02_01 { background-image: url("../img/salon_02_01.jpg"); }
body.salon.opcion02_02 { background-image: url("../img/salon_02_02.jpg"); }
body.salon.opcion02_03 { background-image: url("../img/salon_02_03.jpg"); }
body.salon.opcion03_01 { background-image: url("../img/salon_03_01.jpg"); }
body.salon.opcion03_02 { background-image: url("../img/salon_03_02.jpg"); }
body.salon.opcion03_03 { background-image: url("../img/salon_03_03.jpg"); }

/* ===== FONDOS BAÑOS ===== */
body.bano01.opcion01 { background-image: url("../img/bano01_01.jpg"); }
body.bano01.opcion02 { background-image: url("../img/bano01_02.jpg"); }
body.bano01.opcion03 { background-image: url("../img/bano01_03.jpg"); }
body.bano02.opcion01 { background-image: url("../img/bano02_01.jpg"); }
body.bano02.opcion02 { background-image: url("../img/bano02_02.jpg"); }
body.bano02.opcion03 { background-image: url("../img/bano02_03.jpg"); }

/* ===== LOGO ===== */
.logo-container {
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 100;
}

.logo-container img {
    height: 100px;
    filter: drop-shadow(0 2px 10px rgba(0, 0, 0, 0.2));
    border-radius: 8px;
}

/* ===== NAVEGACION SUPERIOR ===== */
.nav-bar {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    background: var(--surface-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 8px 12px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--border);
    z-index: 100;
}

.nav-btn {
    padding: 10px 24px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
}

.nav-btn:hover {
    color: var(--text);
    background: rgba(0, 0, 0, 0.04);
}

.nav-btn.active {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 2px 8px rgba(26, 26, 46, 0.3);
}

.nav-pdf {
    padding: 10px 20px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
    color: #fff;
    background: var(--accent);
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-pdf:hover {
    background: var(--accent-hover);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(233, 69, 96, 0.3);
}

/* ===== SIDEBAR ===== */
.sidebar {
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100vh;
    background: var(--surface-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-left: 1px solid var(--border);
    padding: 70px 16px 16px;
    overflow-y: auto;
    z-index: 99;
}

@media screen and (min-width: 1920px) {
    .sidebar { width: 320px; }
}

@media screen and (min-width: 2560px) {
    .sidebar { width: 400px; }
}

.sidebar-section {
    margin-bottom: 16px;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.sidebar-section-title {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 8px;
    padding-bottom: 6px;
    border-bottom: 2px solid var(--border);
}

/* ===== BOTONES ===== */
.opcion-btn {
    display: block;
    width: 100%;
    padding: 4px;
    margin-bottom: 6px;
    background: white;
    border: 2px solid rgba(0, 0, 0, 0.08);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.opcion-btn:hover {
    border-color: #e94560;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.opcion-btn.active {
    border-color: #e94560;
    background: linear-gradient(135deg, rgba(233, 69, 96, 0.05), rgba(233, 69, 96, 0.1));
    box-shadow: 0 0 0 2px rgba(233, 69, 96, 0.15);
}

.opcion-btn.active::after {
    content: '';
    position: absolute;
    top: 6px;
    right: 6px;
    width: 18px;
    height: 18px;
    background: #e94560;
    border-radius: 50%;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='11' height='11' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
}

.opcion-btn img {
    width: 100%;
    height: 150px;
    object-fit: contain;
    border-radius: 4px;
}

.botones_salon .opcion-btn img {
    height: 80px;
}

/* ===== NOTA LEGAL ===== */
.legal-note {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 280px;
    background: var(--surface);
    padding: 12px 24px;
    z-index: 50;
    border-top: 1px solid var(--border);
}

.legal-note p {
    font-size: 10px;
    line-height: 1.4;
    color: var(--text-muted);
    text-align: center;
    margin: 0;
}

@media screen and (min-width: 1920px) {
    .legal-note { right: 320px; }
}

@media screen and (min-width: 2560px) {
    .legal-note { right: 400px; }
}