/* ==========================================================================
   Dr. Noé Herrera - System Design Stylesheet (Premium Dark Theme)
   Inspired by marcusmedical.com & drnoeherrera.com Original Colors
   ========================================================================== */

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600;700;800;900&family=Poppins:wght@300;400;500;600;700&display=swap');

/* CSS Variables & Tokens */
:root {
    /* Color Palette */
    --color-primary: #1d71b5;         /* Dr. Noe Original Blue */
    --color-primary-rgb: 29, 113, 181;
    --color-primary-light: #449adc;
    --color-primary-dark: #124a77;
    
    --color-accent: #d4af37;          /* Gold / Luxury Accent */
    --color-accent-rgb: 212, 175, 55;
    
    --color-bg-deep: #0a0a0f;         /* Deepest dark background */
    --color-bg-base: #101016;         /* Standard dark background */
    --color-bg-card: #171721;         /* Card background */
    --color-bg-hover: #1e1e2c;        /* Hover background card */
    
    --color-text-primary: #ffffff;    /* Absolute White for Headings */
    --color-text-secondary: #a9a9b6;  /* Soft Gray for Body Text */
    --color-text-muted: #6e6e7c;       /* Muted Gray for small details */
    
    /* Layout & Spacing */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Poppins', sans-serif;
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.2s ease;
    
    --glass-bg: rgba(23, 23, 33, 0.6);
    --glass-border: rgba(255, 255, 255, 0.05);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    
    --container-max-width: 1200px;
}

/* Reset and Base Styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--color-bg-deep);
}

body {
    font-family: var(--font-body);
    font-weight: 300;
    line-height: 1.6;
    color: var(--color-text-secondary);
    background-color: var(--color-bg-deep);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-text-primary);
    font-weight: 700;
    line-height: 1.2;
}

h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); font-weight: 900; }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 800; }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); font-weight: 700; }
h4 { font-size: 1.2rem; font-weight: 600; }

p {
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

a {
    color: var(--color-text-primary);
    text-decoration: none;
    transition: var(--transition-fast);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul, ol {
    list-style: none;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-deep);
}

::-webkit-scrollbar-thumb {
    background: var(--color-bg-card);
    border-radius: 4px;
    border: 1px solid var(--color-bg-deep);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

/* Utilities & Structural Containers */
.container {
    width: 90%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 15px;
}

.section {
    padding: clamp(4rem, 8vw, 8rem) 0;
    position: relative;
}

.section-title {
    text-align: center;
    margin-bottom: clamp(3rem, 6vw, 5rem);
}

.section-title span {
    color: var(--color-primary);
    display: block;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.section-title h2 {
    position: relative;
    padding-bottom: 1rem;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--color-primary);
    border-radius: 2px;
}

.text-center { text-align: center; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 2rem;
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    border-radius: 30px;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-text-primary);
    box-shadow: 0 4px 15px rgba(29, 113, 181, 0.3);
}

.btn-primary:hover {
    background-color: var(--color-primary-light);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(29, 113, 181, 0.5);
}

.btn-outline {
    background-color: transparent;
    border-color: rgba(255, 255, 255, 0.2);
    color: var(--color-text-primary);
}

.btn-outline:hover {
    border-color: var(--color-primary);
    background-color: rgba(29, 113, 181, 0.1);
    color: var(--color-text-primary);
    transform: translateY(-3px);
}

/* Header & Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition-smooth);
    padding: 1.2rem 0;
    background: transparent;
}

.header.sticky {
    padding: 0.8rem 0;
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

.header-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 45px;
    width: auto;
    transition: var(--transition-smooth);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--color-text-secondary);
    position: relative;
    padding: 0.5rem 0;
}

.nav-link:hover, .nav-link.active {
    color: var(--color-text-primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: var(--transition-smooth);
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-actions .btn {
    padding: 0.6rem 1.5rem;
    font-size: 0.75rem;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 28px;
    height: 2px;
    margin-bottom: 6px;
    background-color: var(--color-text-primary);
    transition: var(--transition-smooth);
}

.hamburger span:last-child {
    margin-bottom: 0;
}

/* Hero Section */
.hero {
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
    /* CSS custom properties for mouse-reactive spotlight, set by JS */
    --mx: 60%;
    --my: 50%;
}

/* Surgical background photo layer */
.hero-bg {
    position: absolute;
    inset: 0;
    background-image: url('images/hero-bg.jpg');
    background-size: cover;
    background-position: center right;
    background-repeat: no-repeat;
    z-index: 0;
}

/* Dark cinematic overlay — keeps text readable and preserves B&W mood */
.hero-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        105deg,
        rgba(10, 10, 15, 0.92) 0%,
        rgba(10, 10, 15, 0.80) 45%,
        rgba(10, 10, 15, 0.55) 75%,
        rgba(10, 10, 15, 0.40) 100%
    );
    z-index: 1;
}

/* Mouse-reactive spotlight: a subtle radial glow that tracks the cursor */
.hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(
        ellipse 50% 55% at var(--mx) var(--my),
        rgba(29, 113, 181, 0.12) 0%,
        rgba(212, 175, 55, 0.04) 40%,
        transparent 70%
    );
    z-index: 2;
    transition: background 0.08s ease;
    pointer-events: none;
}

/* Ambient floating glow orbs (CSS-only, no JS needed) */
.hero-glow-1 {
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(29, 113, 181, 0.14) 0%, transparent 68%);
    top: -8%;
    right: 5%;
    z-index: 3;
    pointer-events: none;
    animation: pulseGlow 18s infinite alternate;
}

.hero-glow-2 {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.07) 0%, transparent 68%);
    bottom: -20%;
    left: -5%;
    z-index: 3;
    pointer-events: none;
    animation: pulseGlow 24s infinite alternate-reverse;
}

@keyframes pulseGlow {
    0%   { transform: scale(1)    translate(0,   0);   opacity: 0.7; }
    50%  { transform: scale(1.1)  translate(20px, -15px); opacity: 1;   }
    100% { transform: scale(1.15) translate(-25px, 20px); opacity: 0.8; }
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 3rem;
    align-items: center;
}

.hero-subtitle {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-primary);
    letter-spacing: 4px;
    text-transform: uppercase;
    margin-bottom: 1rem;
    display: inline-block;
}

.hero-title {
    margin-bottom: 1.5rem;
}

.hero-title span {
    display: block;
    color: var(--color-primary);
    font-weight: 400;
    font-size: 0.6em;
    letter-spacing: 1px;
    margin-top: 0.5rem;
}

.hero-desc {
    font-size: 1.05rem;
    color: var(--color-text-secondary);
    margin-bottom: 2.5rem;
    max-width: 600px;
}

.hero-btns {
    display: flex;
    gap: 1.5rem;
}

.hero-image-wrapper {
    position: relative;
    display: flex;
    justify-content: center;
}

.hero-image-container {
    width: 100%;
    max-width: 420px;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    border: 1px solid var(--glass-border);
    box-shadow: 0 30px 60px rgba(0,0,0,0.6);
    position: relative;
    transform: perspective(1000px) rotateY(-5deg);
    transition: var(--transition-smooth);
}

.hero-image-container:hover {
    transform: perspective(1000px) rotateY(0deg) scale(1.02);
}

.hero-image-container img {
    width: 100%;
    height: 520px;
    object-fit: cover;
    object-position: center;
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 4rem;
    align-items: flex-start;
}

.about-image {
    position: relative;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

.about-image img {
    width: 100%;
    height: auto;
    max-height: 550px;
    object-fit: cover;
    border-radius: var(--border-radius-md);
}

.about-badge {
    position: absolute;
    bottom: 25px;
    right: 25px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius-sm);
    text-align: center;
    box-shadow: 0 15px 30px rgba(0,0,0,0.3);
}

.about-badge .number {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
    display: block;
}

.about-badge .text {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-top: 0.25rem;
}

.about-content h2 {
    margin-bottom: 1.5rem;
}

.about-bio {
    font-size: 1rem;
    margin-bottom: 2rem;
}

/* Tabbed Accordion (BUAP, UNAM, certifications) */
.about-tabs {
    margin-top: 2rem;
}

.tab-header {
    display: flex;
    border-bottom: 1px solid var(--glass-border);
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.tab-btn {
    background: none;
    border: none;
    color: var(--color-text-secondary);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 0.8rem 0;
    cursor: pointer;
    position: relative;
    transition: var(--transition-fast);
}

.tab-btn:hover {
    color: var(--color-text-primary);
}

.tab-btn.active {
    color: var(--color-primary);
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--color-primary);
}

.tab-content {
    display: none;
    animation: fadeIn 0.5s ease forwards;
}

.tab-content.active {
    display: block;
}

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

.tab-list li {
    position: relative;
    padding-left: 25px;
    margin-bottom: 1.2rem;
}

.tab-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--color-primary);
    font-weight: bold;
}

.tab-list li h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
    color: var(--color-text-primary);
}

.tab-list li p {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-bottom: 0;
}

.tab-list li span {
    display: inline-block;
    background: rgba(29, 113, 181, 0.1);
    color: var(--color-primary);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: 0.35rem;
}

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--color-bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-md);
    padding: 2.5rem;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: linear-gradient(135deg, rgba(29, 113, 181, 0.1) 0%, rgba(0,0,0,0) 100%);
    z-index: -1;
    opacity: 0;
    transition: var(--transition-smooth);
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: rgba(29, 113, 181, 0.3);
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

.service-card:hover::before {
    opacity: 1;
}

.service-icon {
    font-size: 2.5rem;
    color: var(--color-primary);
    margin-bottom: 1.5rem;
}

.service-card h3 {
    margin-bottom: 1rem;
    transition: var(--transition-fast);
}

.service-card:hover h3 {
    color: var(--color-primary-light);
}

.service-card p {
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin-bottom: 0;
}

/* Ultrasonic Rhinoplasty Featured Section */
.ultrasonic-featured {
    background: linear-gradient(135deg, #101016 0%, #1c273a 100%);
    border: 1px solid rgba(29, 113, 181, 0.2);
    border-radius: var(--border-radius-lg);
    padding: 4rem;
    margin-top: 5rem;
    box-shadow: 0 30px 60px rgba(0,0,0,0.5);
    position: relative;
    overflow: hidden;
}

.ultrasonic-featured::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(29, 113, 181, 0.15) 0%, rgba(0,0,0,0) 60%);
    pointer-events: none;
}

.ultrasonic-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: center;
}

.ultrasonic-content h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--color-primary-light);
}

.ultrasonic-content .highlight {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    color: var(--color-text-primary);
    font-weight: 500;
    margin-bottom: 1.5rem;
    border-left: 3px solid var(--color-primary);
    padding-left: 15px;
}

.ultrasonic-content p {
    margin-bottom: 2rem;
}

.ultrasonic-info {
    background: rgba(10, 10, 15, 0.5);
    border: 1px solid var(--glass-border);
    padding: 2.5rem;
    border-radius: var(--border-radius-md);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.ultrasonic-info h4 {
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 1rem;
    color: var(--color-accent);
}

.ultrasonic-list {
    margin-bottom: 2rem;
}

.ultrasonic-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 0.8rem;
    font-size: 0.9rem;
    color: var(--color-text-primary);
}

.ultrasonic-list li svg {
    color: var(--color-primary-light);
    flex-shrink: 0;
}

.price-box {
    border-top: 1px solid var(--glass-border);
    padding-top: 1.5rem;
}

.price-box p {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-bottom: 0.5rem;
}

.price-detail {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* Before / After Comparison Slider */
.results-slider-container {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    border: 1px solid var(--glass-border);
    box-shadow: 0 30px 60px rgba(0,0,0,0.5);
}

.slider-wrapper {
    position: relative;
    width: 100%;
    height: 480px;
    user-select: none;
    -webkit-user-select: none;
    overflow: hidden;
}

.slider-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Before image is absolute and covers the after image */
.img-before {
    z-index: 2;
    clip-path: polygon(0 0, 50% 0, 50% 100%, 0 100%);
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.img-after {
    z-index: 1;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Slider Handle (Bar + Draggable circle) */
.slider-handle {
    position: absolute;
    top: 0;
    left: 50%;
    width: 4px;
    height: 100%;
    background-color: var(--color-text-primary);
    z-index: 10;
    cursor: ew-resize;
    transform: translateX(-50%);
    box-shadow: 0 0 10px rgba(0,0,0,0.5);
}

.slider-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 48px;
    height: 48px;
    background-color: var(--color-primary);
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.4), 0 0 0 4px rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-primary);
    pointer-events: none;
    transition: var(--transition-fast);
}

.slider-handle:hover .slider-button,
.slider-handle:active .slider-button {
    background-color: var(--color-primary-light);
    box-shadow: 0 0 15px rgba(29, 113, 181, 0.8), 0 0 0 6px rgba(255, 255, 255, 0.3);
}

/* Arrow SVGs in Handle Button */
.slider-button::before,
.slider-button::after {
    content: '';
    position: absolute;
    width: 0;
    height: 0;
    border-style: solid;
}

.slider-button::before {
    border-width: 6px 8px 6px 0;
    border-color: transparent var(--color-text-primary) transparent transparent;
    left: 12px;
}

.slider-button::after {
    border-width: 6px 0 6px 8px;
    border-color: transparent transparent transparent var(--color-text-primary);
    right: 12px;
}

/* Label Badges */
.slider-label {
    position: absolute;
    bottom: 20px;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    color: var(--color-text-primary);
    padding: 0.4rem 1rem;
    border-radius: 4px;
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    z-index: 5;
    border: 1px solid rgba(255, 255, 255, 0.1);
    pointer-events: none;
}

.label-before {
    left: 20px;
}

.label-after {
    right: 20px;
}

/* Results Selection Tabs (Rinoplastia Estética, Rinoplastia Revisional, etc.) */
.results-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.results-tab-btn {
    background: var(--color-bg-card);
    border: 1px solid var(--glass-border);
    color: var(--color-text-secondary);
    padding: 0.6rem 1.5rem;
    border-radius: 20px;
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.results-tab-btn:hover {
    color: var(--color-text-primary);
    border-color: rgba(29, 113, 181, 0.5);
    background: var(--color-bg-hover);
}

.results-tab-btn.active {
    background: var(--color-primary);
    color: var(--color-text-primary);
    border-color: var(--color-primary);
    box-shadow: 0 4px 15px rgba(29, 113, 181, 0.3);
}

/* Facilities Section (Instalaciones Slider) */
.facilities-carousel {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.carousel-viewport {
    width: 100%;
    overflow: hidden;
    border-radius: var(--border-radius-md);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

.carousel-track {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    width: 100%;
}

.carousel-slide {
    min-width: 100%;
    width: 100%;
    position: relative;
}

.carousel-slide img {
    width: 100%;
    height: 500px;
    object-fit: cover;
}

.carousel-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(to top, rgba(10,10,15,0.95) 0%, rgba(10,10,15,0) 100%);
    padding: 3rem 2rem 2rem;
    color: var(--color-text-primary);
}

.carousel-caption h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.carousel-caption p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-bottom: 0;
}

/* Carousel Nav Buttons */
.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(16, 16, 22, 0.8);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-primary);
    transition: var(--transition-fast);
    z-index: 10;
}

.carousel-btn:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.carousel-btn-prev { left: -25px; }
.carousel-btn-next { right: -25px; }

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 1.5rem;
}

.carousel-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-bg-card);
    border: 1px solid var(--glass-border);
    cursor: pointer;
    transition: var(--transition-fast);
}

.carousel-dot.active {
    background: var(--color-primary);
    width: 25px;
    border-radius: 5px;
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 3rem;
    align-items: stretch;
}

.contact-info-wrapper {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-card {
    background: var(--color-bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-md);
    padding: 2rem;
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
    transition: var(--transition-fast);
}

.contact-card:hover {
    border-color: rgba(29, 113, 181, 0.3);
    background: var(--color-bg-hover);
}

.contact-card-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(29, 113, 181, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary-light);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.contact-card-content h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.contact-card-content p,
.contact-card-content a {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-bottom: 0;
}

.contact-card-content a:hover {
    color: var(--color-primary-light);
}

.contact-map {
    border-radius: var(--border-radius-md);
    overflow: hidden;
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    height: 100%;
    min-height: 380px;
}

.contact-map iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* Footer Section */
.footer {
    background: #08080c;
    border-top: 1px solid var(--glass-border);
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-logo img {
    height: 50px;
    margin-bottom: 1.5rem;
}

.footer-about p {
    font-size: 0.88rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
    max-width: 320px;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-bg-card);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
    transition: var(--transition-fast);
}

.social-link:hover {
    background: var(--color-primary);
    color: var(--color-text-primary);
    border-color: var(--color-primary);
    transform: translateY(-3px);
}

.footer-nav h4 {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.footer-nav h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--color-primary);
}

.footer-nav-list li {
    margin-bottom: 0.8rem;
}

.footer-nav-list a {
    font-size: 0.88rem;
    color: var(--color-text-secondary);
}

.footer-nav-list a:hover {
    color: var(--color-primary-light);
    padding-left: 5px;
}

.footer-copyright {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-copyright p {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-bottom: 0;
}

.footer-copyright a {
    color: var(--color-text-secondary);
}

.footer-copyright a:hover {
    color: var(--color-primary-light);
}

/* Booking Page Specific Styles (agendar-cita.html) */
.booking-page-body {
    background-color: var(--color-bg-deep);
}

.booking-header {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--glass-border);
    padding: 1.5rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.booking-hero {
    padding: 5rem 0 3rem;
    text-align: center;
}

.booking-container {
    max-width: 750px;
    margin: 0 auto 6rem;
    background: var(--color-bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    padding: 3rem;
    box-shadow: var(--glass-shadow);
}

/* Step Progress Indicator */
.booking-steps {
    display: flex;
    justify-content: space-between;
    margin-bottom: 3rem;
    position: relative;
}

.booking-steps::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 5%;
    right: 5%;
    height: 2px;
    background: var(--glass-border);
    z-index: 1;
}

.step-indicator {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 80px;
}

.step-num {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background-color: var(--color-bg-base);
    border: 2px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--color-text-secondary);
    transition: var(--transition-fast);
}

.step-indicator.active .step-num {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-text-primary);
    box-shadow: 0 0 15px rgba(29, 113, 181, 0.4);
}

.step-indicator.completed .step-num {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-bg-deep);
}

.step-text {
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 0.5rem;
    color: var(--color-text-muted);
}

.step-indicator.active .step-text {
    color: var(--color-text-primary);
}

/* Form Styles */
.booking-panel {
    display: none;
    animation: fadeIn 0.4s ease forwards;
}

.booking-panel.active {
    display: block;
}

.form-group-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
}

.form-control {
    width: 100%;
    background-color: rgba(10, 10, 15, 0.5);
    border: 1px solid var(--glass-border);
    padding: 0.9rem 1.2rem;
    color: var(--color-text-primary);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-body);
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(29, 113, 181, 0.15);
    background-color: rgba(10, 10, 15, 0.8);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

/* Service Options Grid */
.booking-service-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 2rem;
}

.booking-service-card {
    background: rgba(10, 10, 15, 0.4);
    border: 1px solid var(--glass-border);
    padding: 1.2rem 1.5rem;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 15px;
}

.booking-service-card:hover {
    border-color: rgba(29, 113, 181, 0.4);
    background: rgba(10, 10, 15, 0.8);
}

.booking-service-card.selected {
    border-color: var(--color-primary);
    background: rgba(29, 113, 181, 0.1);
    box-shadow: 0 0 10px rgba(29, 113, 181, 0.15);
}

.service-radio {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 2px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.booking-service-card.selected .service-radio {
    border-color: var(--color-primary);
}

.booking-service-card.selected .service-radio::after {
    content: '';
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--color-primary);
}

.service-card-info h4 {
    font-size: 0.95rem;
    font-weight: 600;
}

/* Date and Time Selector styles */
.datetime-layout {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 2rem;
}

.calendar-wrapper {
    background: rgba(10, 10, 15, 0.4);
    border: 1px solid var(--glass-border);
    padding: 1.5rem;
    border-radius: var(--border-radius-sm);
}

.time-slots-wrapper {
    display: flex;
    flex-direction: column;
}

.time-slots-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.8rem;
    max-height: 300px;
    overflow-y: auto;
    padding-right: 5px;
}

.time-slot {
    background: rgba(10, 10, 15, 0.4);
    border: 1px solid var(--glass-border);
    padding: 0.8rem;
    border-radius: var(--border-radius-sm);
    text-align: center;
    cursor: pointer;
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    transition: var(--transition-fast);
}

.time-slot:hover {
    border-color: var(--color-primary);
    color: var(--color-primary-light);
}

.time-slot.selected {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-text-primary);
}

/* Calendar styling (Mock layout) */
.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.calendar-header h4 {
    font-size: 1rem;
}

.calendar-nav-btn {
    background: none;
    border: none;
    color: var(--color-text-primary);
    cursor: pointer;
}

.calendar-days-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 5px;
    text-align: center;
}

.calendar-day-name {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--color-text-muted);
    padding-bottom: 5px;
}

.calendar-day {
    padding: 0.6rem 0;
    font-size: 0.85rem;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition-fast);
}

.calendar-day.disabled {
    color: var(--color-text-muted);
    opacity: 0.3;
    pointer-events: none;
}

.calendar-day:not(.disabled):hover {
    background-color: var(--color-primary-dark);
}

.calendar-day.selected {
    background-color: var(--color-primary);
    color: var(--color-text-primary);
    font-weight: 700;
}

.calendar-day.today {
    border: 1px solid var(--color-primary);
}

/* Summary Panel */
.summary-box {
    background: rgba(10, 10, 15, 0.4);
    border: 1px solid var(--glass-border);
    padding: 2rem;
    border-radius: var(--border-radius-sm);
    margin-bottom: 2rem;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 0.8rem 0;
}

.summary-row:last-child {
    border-bottom: none;
}

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

.summary-value {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    text-align: right;
}

.summary-value.highlight {
    color: var(--color-accent);
    font-weight: 700;
}

/* Deposit disclaimer box */
.deposit-disclaimer {
    background: rgba(212, 175, 55, 0.08);
    border: 1px dashed var(--color-accent);
    padding: 1.2rem;
    border-radius: var(--border-radius-sm);
    display: flex;
    gap: 15px;
    align-items: flex-start;
}

.deposit-disclaimer svg {
    color: var(--color-accent);
    flex-shrink: 0;
    margin-top: 2px;
}

.deposit-disclaimer p {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-bottom: 0;
    line-height: 1.5;
}

/* Nav buttons for steps */
.booking-actions {
    display: flex;
    justify-content: space-between;
    margin-top: 2.5rem;
    border-top: 1px solid var(--glass-border);
    padding-top: 2rem;
}

.booking-actions .btn {
    min-width: 140px;
}

/* Success panel style */
.success-panel {
    text-align: center;
    padding: 2rem 0;
}

.success-icon {
    width: 80px;
    height: 80px;
    background-color: rgba(212, 175, 55, 0.1);
    color: var(--color-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin: 0 auto 2rem;
    box-shadow: 0 0 30px rgba(212, 175, 55, 0.2);
}

.success-panel h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.success-panel p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    max-width: 500px;
    margin: 0 auto 2.5rem;
}

.success-details {
    background: rgba(10, 10, 15, 0.4);
    border: 1px solid var(--glass-border);
    padding: 2rem;
    border-radius: var(--border-radius-md);
    max-width: 500px;
    margin: 0 auto 2.5rem;
    text-align: left;
}

.success-details h4 {
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 0.5rem;
    font-size: 0.95rem;
    color: var(--color-accent);
}

.success-details li {
    margin-bottom: 0.6rem;
    font-size: 0.88rem;
}

.success-details li span {
    font-weight: 600;
    color: var(--color-text-primary);
}

/* Responsive Breakpoints */
@media (max-width: 991px) {
    .nav-menu {
        display: none; /* Handled dynamically by Mobile Navigation in script.js */
    }
    
    .nav-actions {
        display: none;
    }
    
    .hamburger {
        display: block;
    }
    
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 4rem;
        text-align: center;
    }
    
    .hero-subtitle {
        justify-content: center;
    }
    
    .hero-btns {
        justify-content: center;
    }
    
    .hero-image-container {
        transform: none;
    }
    
    .hero-image-container:hover {
        transform: scale(1.02);
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .about-image {
        max-width: 500px;
        margin: 0 auto;
    }
    
    .ultrasonic-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    .contact-map {
        order: -1;
    }
    
    .datetime-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 4rem 0;
    }
    
    .hero {
        height: auto;
        padding-top: 140px;
        padding-bottom: 60px;
    }
    
    .hero-image-container img {
        height: 400px;
    }
    
    .ultrasonic-featured {
        padding: 2.5rem 1.5rem;
    }
    
    .slider-wrapper {
        height: 320px;
    }
    
    .carousel-slide img {
        height: 350px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    .footer-copyright {
        flex-direction: column;
        text-align: center;
    }
    
    .booking-container {
        padding: 1.5rem;
    }
    
    .form-group-grid,
    .booking-service-grid {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .form-group-grid .form-group {
        margin-bottom: 1.5rem;
    }
    
    .booking-service-card {
        margin-bottom: 1rem;
    }
}

/* Mobile Nav Overlay Menu */
.mobile-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--color-bg-deep);
    z-index: 999;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transform: translateY(-100%);
    transition: var(--transition-smooth);
}

.mobile-nav.open {
    transform: translateY(0);
}

.mobile-nav-list {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    margin-bottom: 3rem;
}

.mobile-nav-link {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.mobile-nav .btn {
    width: 200px;
}

/* Hero content must sit above all background layers */
.hero > .container {
    position: relative;
    z-index: 10;
}