/* Reset & Base Styles */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

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

:root {
    /* Fonts */
    --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

    /* Transition speeds */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

    /* Light Theme Variables */
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --bg-glass: rgba(255, 255, 255, 0.8);
    --border-glass: rgba(255, 255, 255, 0.4);
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    
    /* Branding Colors */
    --color-cooling: #0ea5e9; /* Cool blue */
    --color-cooling-hover: #0284c7;
    --color-heating: #f97316; /* Warm orange */
    --color-heating-hover: #ea580c;
    --color-accent: #6366f1; /* Indigo */
    --color-success: #10b981;
    --color-error: #ef4444;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
    --radius-round: 9999px;
}

[data-theme="dark"] {
    /* Dark Theme Variables */
    --bg-primary: #0b0f19;
    --bg-secondary: #131b2e;
    --bg-tertiary: #1e293b;
    --bg-glass: rgba(19, 27, 46, 0.8);
    --border-glass: rgba(255, 255, 255, 0.05);
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: #1e293b;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -4px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 8px 10px -6px rgba(0, 0, 0, 0.4);
}

html {
    scroll-behavior: smooth;
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    line-height: 1.6;
}

/* Typography & Links */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    letter-spacing: -0.025em;
    line-height: 1.25;
}

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

/* Utilities */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.text-gradient-cooling {
    background: linear-gradient(135deg, var(--color-cooling), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.text-gradient-heating {
    background: linear-gradient(135deg, var(--color-heating), #ec4899);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
    outline: none;
}

.btn-primary-cooling {
    background-color: var(--color-cooling);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(14, 165, 233, 0.4);
}

.btn-primary-cooling:hover {
    background-color: var(--color-cooling-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(14, 165, 233, 0.5);
}

.btn-primary-heating {
    background-color: var(--color-heating);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(249, 115, 22, 0.4);
}

.btn-primary-heating:hover {
    background-color: var(--color-heating-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(249, 115, 22, 0.5);
}

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--border-color);
    transform: translateY(-2px);
}

.btn-gray {
    background-color: #64748b;
    color: white;
    box-shadow: 0 4px 14px 0 rgba(100, 116, 139, 0.3);
}

.btn-gray:hover {
    background-color: #475569;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(100, 116, 139, 0.4);
}

[data-theme="dark"] .btn-gray {
    background-color: #475569;
    color: white;
    box-shadow: 0 4px 14px 0 rgba(71, 85, 105, 0.3);
}

[data-theme="dark"] .btn-gray:hover {
    background-color: #334155;
    box-shadow: 0 6px 20px 0 rgba(71, 85, 105, 0.4);
}

.btn-icon {
    width: 2.75rem;
    height: 2.75rem;
    padding: 0;
    border-radius: var(--radius-md);
}

/* Header & Navbar */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-glass);
    transition: background-color var(--transition-normal), border var(--transition-normal);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 5.5rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text-primary);
}

.logo-text {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.03em;
    display: flex;
    align-items: center;
}

.logo-highlight {
    background: linear-gradient(135deg, var(--color-cooling), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-left: 0.25rem;
}

.logo-text-group {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
}

.logo-subtitle {
    font-size: 0.68rem;
    font-weight: 700;
    color: var(--text-muted);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-top: 0.15rem;
}

.logo-icon {
    display: flex;
    position: relative;
    width: 2rem;
    height: 2rem;
}

.logo-blue {
    color: var(--color-cooling);
}

.logo-orange {
    color: var(--color-heating);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-cooling);
    transition: width var(--transition-normal);
}

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

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

/* Theme Toggle Button */
.theme-toggle {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.theme-toggle:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.theme-toggle .sun-icon {
    display: none;
}

[data-theme="dark"] .theme-toggle .sun-icon {
    display: block;
}

[data-theme="dark"] .theme-toggle .moon-icon {
    display: none;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    position: relative;
    padding: 7rem 0 5rem 0;
    min-height: 85vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -10%;
    right: -10%;
    width: 50vw;
    height: 50vw;
    border-radius: var(--radius-round);
    background: radial-gradient(circle, rgba(14, 165, 233, 0.15) 0%, rgba(99, 102, 241, 0.05) 50%, rgba(255,255,255,0) 70%);
    z-index: -1;
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -10%;
    left: -10%;
    width: 40vw;
    height: 40vw;
    border-radius: var(--radius-round);
    background: radial-gradient(circle, rgba(249, 115, 22, 0.1) 0%, rgba(236, 72, 153, 0.02) 50%, rgba(255,255,255,0) 70%);
    z-index: -1;
    pointer-events: none;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: 4rem;
    align-items: flex-start;
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.badge {
    align-self: flex-start;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-round);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-cooling);
}

.badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--color-cooling);
    box-shadow: 0 0 8px var(--color-cooling);
    animation: pulse 2s infinite;
}

.hero-title {
    font-size: 3.5rem;
    line-height: 1.15;
    font-weight: 800;
}

.hero-subtitle-main {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--text-secondary);
    line-height: 1.2;
}

.hero-description {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 540px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--text-primary);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Modern Card/Image for Hero Right Side */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image-container {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-color);
    aspect-ratio: 1/1;
    width: 100%;
    max-width: 520px;
    margin-left: auto;
    transition: transform var(--transition-slow);
}

@media (min-width: 1025px) {
    .hero-image-container {
        margin-top: 3.8rem;
    }
}

.hero-visual-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: 2rem;
    width: 100%;
    max-width: 440px;
    position: relative;
    overflow: hidden;
}

.visual-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 8px;
    background: linear-gradient(90deg, var(--color-cooling), var(--color-heating));
}

.visual-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.visual-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
}

.visual-status {
    padding: 0.25rem 0.75rem;
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--radius-round);
}

.visual-screen {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.screen-title {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.screen-value-container {
    display: flex;
    align-items: baseline;
    gap: 0.25rem;
}

.screen-value {
    font-size: 4rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
}

.screen-unit {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-cooling);
}

.screen-mode {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-cooling);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.visual-controls {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
}

.control-btn {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.75rem;
    cursor: pointer;
    font-weight: 600;
    color: var(--text-primary);
    transition: all var(--transition-fast);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

.control-btn:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--text-muted);
    transform: translateY(-2px);
}

.control-btn.active-cooling {
    background-color: rgba(14, 165, 233, 0.1);
    border-color: var(--color-cooling);
    color: var(--color-cooling);
}

.control-btn.active-heating {
    background-color: rgba(249, 115, 22, 0.1);
    border-color: var(--color-heating);
    color: var(--color-heating);
}

/* Sections Base Styling */
.section {
    padding: 6rem 0;
}

.section-bg-tertiary {
    background-color: var(--bg-tertiary);
}

#servicios {
    /* Section padding is default */
}

/* Background Carousel Slider (Scoped inside services-banner-card) */
.services-slider-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

.services-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    opacity: 0;
    transition: opacity var(--transition-slow);
    z-index: 1;
}

.services-slide.active {
    opacity: 1;
    z-index: 2;
}

.services-slider-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 3;
    background-color: rgba(15, 23, 42, 0.30); /* Soft dark overlay for image clarity, no blur */
    transition: background-color var(--transition-normal);
}

[data-theme="dark"] .services-slider-overlay {
    background-color: rgba(15, 23, 42, 0.50); /* Dark overlay for high contrast, no blur */
}

/* Slider Navigation Arrows */
.services-slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 15;
    background-color: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: white;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.services-slider-arrow:hover {
    background-color: var(--color-cooling);
    color: white;
    border-color: var(--color-cooling);
    transform: translateY(-50%) scale(1.08);
    box-shadow: var(--shadow-md);
}

.services-slider-arrow.prev {
    left: 1.5rem;
}

.services-slider-arrow.next {
    right: 1.5rem;
}

/* Header Banner Card */
.services-banner-card {
    position: relative;
    overflow: hidden;
    width: 100%;
    max-width: 100% !important; /* Override standard .section-header max-width */
    min-height: 440px;
    border-radius: var(--radius-xl);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 3.5rem 5rem;
    margin: 0 auto 3.5rem auto;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    background-color: var(--bg-secondary);
}

[data-theme="dark"] .services-banner-card {
    border-color: rgba(255, 255, 255, 0.08);
}

.services-banner-content {
    position: relative;
    z-index: 10;
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    text-align: center;
}

.services-banner-card .section-subtitle {
    color: #38bdf8 !important; /* Sky blue */
    font-weight: 700;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.8);
}

.services-banner-card .section-title {
    color: white !important;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.8), 0 0 15px rgba(0, 0, 0, 0.5);
}

.services-banner-card .section-description {
    color: #f1f5f9 !important; /* Muted white-gray */
    max-width: 800px;
    margin: 0 auto;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.8);
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 4rem auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.section-subtitle {
    text-transform: uppercase;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-cooling);
    letter-spacing: 0.1em;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 800;
}

.section-description {
    color: var(--text-secondary);
}

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.service-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2.5rem 2rem;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

[data-theme="dark"] .service-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
}

.service-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: var(--color-cooling);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-cooling);
    background-color: var(--bg-secondary);
}

[data-theme="dark"] .service-card:hover {
    background-color: var(--bg-secondary);
}

.service-card:hover::after {
    transform: scaleX(1);
}

.service-card.heating-card::after {
    background-color: var(--color-heating);
}

.service-icon-box {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.service-icon-cooling {
    background-color: rgba(14, 165, 233, 0.1);
    color: var(--color-cooling);
}

.service-icon-heating {
    background-color: rgba(249, 115, 22, 0.1);
    color: var(--color-heating);
}

.service-card-title {
    font-size: 1.35rem;
    font-weight: 700;
}

.service-card-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    flex-grow: 1;
}

.service-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-cooling);
    margin-top: 0.5rem;
}

.heating-card .service-link {
    color: var(--color-heating);
}

.service-link i {
    transition: transform var(--transition-fast);
}

.service-card:hover .service-link i {
    transform: translateX(4px);
}

/* BTU Calculator Section */
.calculator-container {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    max-width: 940px;
    margin: 0 auto;
}

.calc-form-side {
    padding: 2.25rem 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.calc-results-side {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: white;
    padding: 2.25rem 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

[data-theme="dark"] .calc-results-side {
    background: linear-gradient(135deg, #131b2e 0%, #1e293b 100%);
}

.calc-results-side::before {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(14, 165, 233, 0.2) 0%, transparent 70%);
    top: -50px;
    right: -50px;
}

.calc-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

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

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    transition: all var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-cooling);
    background-color: var(--bg-secondary);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
}

.result-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    z-index: 1;
}

.result-placeholder-icon {
    font-size: 4rem;
    color: rgba(14, 165, 233, 0.4);
    animation: float 3s ease-in-out infinite;
}

.result-content {
    display: none;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
    z-index: 1;
    animation: fadeIn var(--transition-normal);
}

.result-badge {
    background-color: rgba(14, 165, 233, 0.15);
    color: var(--color-cooling);
    border: 1px solid rgba(14, 165, 233, 0.3);
    padding: 0.5rem 1.25rem;
    border-radius: var(--radius-round);
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
}

.result-value-box {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.result-value {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1;
    background: linear-gradient(135deg, #38bdf8, #818cf8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.result-label {
    font-size: 0.95rem;
    color: #94a3b8;
    margin-top: 0.5rem;
}

.result-details {
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 1.15rem;
    border-radius: var(--radius-md);
    width: 100%;
    max-width: 320px;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
}

.detail-name {
    color: #94a3b8;
}

.detail-val {
    font-weight: 600;
    color: white;
}

/* Appointment / Quote Form Section */
#citas {
    padding: 4.5rem 0;
}

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

.appointment-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.info-header {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.appointment-features {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.app-feature-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.app-feature-icon {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius-md);
    background-color: rgba(14, 165, 233, 0.1);
    color: var(--color-cooling);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
    flex-shrink: 0;
}

.app-feature-text {
    display: flex;
    flex-direction: column;
}

.app-feature-title {
    font-weight: 700;
    font-size: 1.05rem;
}

.app-feature-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.appointment-form-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: 2.25rem 3rem;
    position: relative;
    max-width: 800px;
    margin: 0 0 0 auto;
    width: 100%;
}

.booking-form {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.radio-group {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
}

.radio-label {
    border: 1px solid var(--border-color);
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: 0.8rem 0.5rem;
    text-align: center;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.85rem;
    transition: all var(--transition-fast);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.35rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.radio-input {
    display: none;
}

.radio-input:checked + .radio-label {
    border-color: var(--color-cooling);
    background-color: rgba(14, 165, 233, 0.08);
    color: var(--color-cooling);
}

.radio-input:checked + .radio-label.heating-select {
    border-color: #ef4444; /* Red */
    background-color: rgba(239, 68, 68, 0.08);
    color: #ef4444;
}

.radio-input:checked + .radio-label.maintenance-select {
    border-color: #f59e0b; /* Amber/Yellow */
    background-color: rgba(245, 158, 11, 0.08);
    color: #f59e0b;
}

.radio-input:checked + .radio-label.other-select {
    border-color: #10b981; /* Green */
    background-color: rgba(16, 185, 129, 0.08);
    color: #10b981;
}

/* FAQ Section */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.faq-item {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.faq-item:hover {
    border-color: var(--text-muted);
}

.faq-question-btn {
    width: 100%;
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: none;
    border: none;
    text-align: left;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    cursor: pointer;
    outline: none;
}

.faq-icon {
    font-size: 1.25rem;
    color: var(--text-muted);
    transition: transform var(--transition-normal);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal) ease-out;
}

.faq-answer-content {
    padding: 0 1.5rem 1.5rem 1.5rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
    border-top: 1px solid transparent;
}

/* Active FAQ Item State */
.faq-item.active {
    box-shadow: var(--shadow-md);
    border-color: var(--color-cooling);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
    color: var(--color-cooling);
}

.faq-item.active .faq-answer-content {
    border-top-color: var(--border-color);
}

/* Footer Section */
.footer {
    background-color: #0b0f19;
    color: #94a3b8;
    padding: 5rem 0 2rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    margin-top: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-column {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.35rem;
    font-weight: 800;
    color: white;
}

.footer-desc {
    font-size: 0.9rem;
    line-height: 1.6;
}

.footer-socials {
    display: flex;
    gap: 0.75rem;
}

.social-link {
    width: 2.25rem;
    height: 2.25rem;
    border-radius: var(--radius-md);
    background-color: rgba(255, 255, 255, 0.05);
    color: #cbd5e1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.social-link:hover {
    background-color: var(--color-cooling);
    color: white;
    transform: translateY(-2px);
}

.footer-title {
    color: white;
    font-size: 1.05rem;
    font-weight: 700;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-link {
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

.footer-link:hover {
    color: var(--color-cooling);
}

.contact-info-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    font-size: 0.9rem;
}

.contact-info-item {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
}

.contact-info-item i {
    color: var(--color-cooling);
    margin-top: 0.25rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
}

.footer-legal-links {
    display: flex;
    gap: 1.5rem;
}

.footer-legal-link:hover {
    color: white;
}

/* Success Modal / Confetti Animation Container */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(11, 15, 25, 0.75);
    backdrop-filter: blur(8px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 3rem;
    text-align: center;
    max-width: 480px;
    width: 90%;
    box-shadow: var(--shadow-xl);
    transform: scale(0.9);
    transition: transform var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.modal-overlay.active .modal-card {
    transform: scale(1);
}

.modal-icon {
    width: 4.5rem;
    height: 4.5rem;
    border-radius: 50%;
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.25rem;
    margin: 0 auto 1.5rem auto;
    animation: scaleUp 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

.modal-title {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.modal-desc {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

/* Animations */
@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(14, 165, 233, 0.5);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(14, 165, 233, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(14, 165, 233, 0);
    }
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
    100% {
        transform: translateY(0px);
    }
}

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

@keyframes scaleUp {
    from {
        transform: scale(0);
    }
    to {
        transform: scale(1);
    }
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    .hero-visual {
        order: -1;
    }
    .hero {
        padding-top: 5.5rem;
    }
    .calculator-container {
        grid-template-columns: 1fr;
    }
    .calc-results-side {
        padding: 3rem;
    }
    .appointment-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    .appointment-form-card {
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.75rem;
    }
    .hero-subtitle-main {
        font-size: 2.1rem;
    }
    .menu-toggle {
        display: block;
    }
    .nav-menu {
        position: fixed;
        top: 5.5rem;
        left: 0;
        width: 100%;
        height: calc(100vh - 5.5rem);
        background-color: var(--bg-secondary);
        flex-direction: column;
        padding: 3rem 1.5rem;
        gap: 2rem;
        transform: translateX(-100%);
        transition: transform var(--transition-normal);
        border-top: 1px solid var(--border-color);
        box-shadow: var(--shadow-lg);
    }
    .nav-menu.active {
        transform: translateX(0);
    }
    .nav-actions {
        display: none;
    }
    .nav-menu .nav-actions-mobile {
        display: flex;
        flex-direction: column;
        width: 100%;
        gap: 1rem;
        margin-top: 2rem;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
    .calc-form-side {
        padding: 2rem;
    }
    .services-banner-card {
        padding: 2.5rem 3rem;
        min-height: 360px;
    }
    .services-slider-arrow {
        width: 2.5rem;
        height: 2.5rem;
    }
    .services-slider-arrow.prev {
        left: 0.75rem;
    }
    .services-slider-arrow.next {
        right: 0.75rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.25rem;
    }
    .hero-subtitle-main {
        font-size: 1.7rem;
    }
    .hero-buttons {
        flex-direction: column;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
    .radio-group {
        grid-template-columns: 1fr;
    }
    .appointment-form-card {
        padding: 1.5rem;
    }
    .modal-card {
        padding: 2rem;
    }
    .services-banner-card {
        padding: 2rem 1.25rem;
        min-height: 320px;
    }
    .services-slider-arrow {
        display: none;
    }
}

/* Custom Logo Styling */
.logo-img {
    height: 3.5rem;
    width: auto;
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.08));
}

[data-theme="dark"] .logo-img {
    filter: drop-shadow(0 2px 4px rgba(255, 255, 255, 0.05));
    opacity: 0.95;
}

.logo-img-footer {
    height: 2.8rem;
    width: auto;
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
    opacity: 0.9;
}

.logo-img-footer:hover {
    transform: scale(1.03);
    opacity: 1;
}

/* Admin Panel Settings & Tabs Styles */
.admin-tab-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-weight: 500;
    cursor: pointer;
    padding: 0.5rem 1rem;
    border-bottom: 2px solid transparent;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all var(--transition-fast);
}

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

.admin-tab-btn.active {
    color: var(--text-primary);
    font-weight: 600;
    border-bottom-color: var(--color-cooling);
}

.config-field {
    animation: fadeIn var(--transition-fast) forwards;
}

.spin {
    animation: spin 1s linear infinite;
    display: inline-block;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Admin Login Styles */
#btn-toggle-password {
    opacity: 0.7;
    transition: opacity var(--transition-fast), color var(--transition-fast);
}

#btn-toggle-password:hover {
    opacity: 1;
    color: var(--color-cooling);
}

.error-message {
    animation: fadeIn var(--transition-fast) forwards;
}

/* ==========================================
   8. Floating Admin Control Panel & Alerts
   ========================================== */
#admin-floating-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 1999;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

#admin-floating-btn {
    border-radius: 9999px;
    padding: 0.8rem 1.4rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    box-shadow: 0 10px 25px -5px rgba(14, 165, 233, 0.4), 0 8px 10px -6px rgba(14, 165, 233, 0.4);
    font-weight: 700;
    border: none;
    cursor: pointer;
    background-color: var(--color-cooling);
    color: white;
    transition: all 0.3s ease;
    position: relative;
    font-family: var(--font-sans);
    font-size: 0.9rem;
}

#admin-floating-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px -5px rgba(14, 165, 233, 0.5), 0 10px 15px -6px rgba(14, 165, 233, 0.5);
    background-color: var(--color-cooling-dark);
}

#admin-notification-badge {
    position: absolute;
    top: -6px;
    right: -6px;
    background-color: var(--color-error);
    color: white;
    border-radius: 50%;
    width: 22px;
    height: 22px;
    font-size: 0.75rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--bg-primary);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.badge-pulse {
    animation: badgeBouncePulse 1.5s infinite ease-in-out;
}

@keyframes badgeBouncePulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.2);
        box-shadow: 0 0 10px rgba(239, 68, 68, 0.8);
    }
}

/* Toast Notifications Container */
#toast-container {
    position: fixed;
    top: 2rem;
    right: 2rem;
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    pointer-events: none;
}

.toast {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-left: 4px solid var(--color-cooling);
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    min-width: 280px;
    max-width: 380px;
    box-shadow: 0 10px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    pointer-events: auto;
    animation: slideInRight 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.toast.hide {
    animation: slideOutRight 0.3s ease forwards;
}

.toast-success {
    border-left-color: var(--color-success);
}

.toast-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    text-align: left;
}

.toast-title {
    font-weight: 700;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.toast-msg {
    font-size: 0.8rem;
    color: var(--text-muted);
}

@keyframes slideInRight {
    from {
        transform: translateX(120%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOutRight {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(120%);
        opacity: 0;
    }
}