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

:root {
    --deep-navy: #0b2545;
    --teal-accent: #0fb5a6;
    --soft-slate: #6b7b8c;
    --warm-highlight: #ffd166;
    --background-light: #f6f9fb;
    --white: #ffffff;
    --light-grey: #e8ecef;
    --dark-grey: #2c3e50;
    --success: #27ae60;
    --warning: #f39c12;
    --error: #e74c3c;
    
    --shadow-sm: 0 2px 8px rgba(11, 37, 69, 0.1);
    --shadow-md: 0 4px 16px rgba(11, 37, 69, 0.15);
    --shadow-lg: 0 8px 32px rgba(11, 37, 69, 0.2);
    
    --transition: all 0.3s ease;
    --transition-fast: all 0.2s ease;
    
    --border-radius: 8px;
    --border-radius-lg: 12px;
    
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Playfair Display', Georgia, serif;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--dark-grey);
    background-color: var(--background-light);
    font-size: 16px;
    font-weight: 400;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--deep-navy);
    margin-bottom: 1rem;
}

h1 { font-size: 3rem; font-weight: 700; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

p {
    margin-bottom: 1rem;
    font-weight: 400;
}

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

a:hover {
    color: var(--deep-navy);
}

/* Container and Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Utility Classes */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Header */
.header {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: var(--transition);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--deep-navy);
    text-decoration: none;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--teal-accent), var(--deep-navy));
    border-radius: 50%;
    position: relative;
}

.logo-icon::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    background: var(--white);
    clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
}

.logo-icon::after {
    content: '';
    position: absolute;
    top: 60%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 12px;
    height: 2px;
    background: var(--teal-accent);
    border-radius: 1px;
}

/* Navigation */
.nav-list {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    font-weight: 500;
    color: var(--dark-grey);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    transition: var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    background: var(--background-light);
    color: var(--teal-accent);
}

/* Mobile Navigation */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--deep-navy);
    transition: var(--transition-fast);
}

.mobile-overlay {
    display: none;
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(11, 37, 69, 0.9);
    backdrop-filter: blur(10px);
    z-index: 999;
}

.mobile-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
}

.mobile-nav-list {
    list-style: none;
    text-align: center;
}

.mobile-nav-link {
    display: block;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--white);
    padding: 1.5rem 2rem;
    transition: var(--transition-fast);
}

.mobile-nav-link:hover {
    color: var(--teal-accent);
    transform: scale(1.05);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--deep-navy) 0%, var(--teal-accent) 100%);
    color: var(--white);
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero-shapes {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.1;
}

.hero-shapes::before,
.hero-shapes::after {
    content: '';
    position: absolute;
    background: var(--white);
    border-radius: 50%;
}

.hero-shapes::before {
    width: 300px;
    height: 300px;
    top: -150px;
    right: -150px;
}

.hero-shapes::after {
    width: 200px;
    height: 200px;
    bottom: -100px;
    left: -100px;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    color: var(--white);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
}

/* Page Hero */
.page-hero {
    background: linear-gradient(135deg, var(--deep-navy) 0%, var(--teal-accent) 100%);
    color: var(--white);
    padding: 120px 0 60px;
    text-align: center;
}

.page-hero-content h1 {
    color: var(--white);
    font-size: 3rem;
    margin-bottom: 1rem;
}

.page-hero-content p {
    font-size: 1.25rem;
    opacity: 0.9;
}

/* CTA Buttons */
.cta-button {
    display: inline-block;
    background: var(--warm-highlight);
    color: var(--deep-navy);
    font-weight: 600;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
    text-decoration: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.cta-button:hover {
    background: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.cta-button.secondary {
    background: transparent;
    color: var(--teal-accent);
    border: 2px solid var(--teal-accent);
}

.cta-button.secondary:hover {
    background: var(--teal-accent);
    color: var(--white);
}

/* Trust Badges */
.trust-badges {
    background: var(--white);
    padding: 3rem 0;
    border-bottom: 1px solid var(--light-grey);
}

.badges-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.badge {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--background-light);
    border-radius: var(--border-radius-lg);
    transition: var(--transition);
    animation: fadeInUp 0.6s ease forwards;
}

.badge:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.badge-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    position: relative;
}

.badge-icon.residential {
    background: linear-gradient(135deg, var(--teal-accent), var(--deep-navy));
}

.badge-icon.commercial {
    background: linear-gradient(135deg, var(--warm-highlight), var(--teal-accent));
}

.badge-icon.vrv {
    background: linear-gradient(135deg, var(--deep-navy), var(--soft-slate));
}

.badge-icon.brands {
    background: linear-gradient(135deg, var(--teal-accent), var(--warm-highlight));
}

.badge span {
    font-weight: 600;
    color: var(--deep-navy);
}

/* Main Article */
.main-article {
    background: var(--white);
    padding: 4rem 0;
}

.article-content {
    max-width: 900px;
    margin: 0 auto;
}

.article-header {
    text-align: center;
    margin-bottom: 4rem;
}

.article-header h1 {
    font-size: 3rem;
    color: var(--deep-navy);
    margin-bottom: 1rem;
}

.article-section {
    margin-bottom: 4rem;
    padding: 2rem 0;
}

.article-section h2 {
    font-size: 2.25rem;
    margin-bottom: 2rem;
    color: var(--deep-navy);
    position: relative;
}

.article-section h2::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--teal-accent), var(--warm-highlight));
}

.text-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin: 2rem 0;
}

.callout-box {
    background: linear-gradient(135deg, var(--teal-accent), var(--deep-navy));
    color: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    margin: 2rem 0;
    position: relative;
}

.callout-box::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 2rem;
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom: 8px solid var(--teal-accent);
}

.subsection {
    margin: 2rem 0;
    padding: 1.5rem;
    background: var(--background-light);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--teal-accent);
}

.maintenance-list {
    list-style: none;
    margin: 1.5rem 0;
}

.maintenance-list li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 2rem;
}

.maintenance-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--teal-accent);
    font-weight: bold;
}

.ac-types-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.ac-type-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.ac-type-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.temperature-effects {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin: 2rem 0;
}

.temp-section {
    background: var(--background-light);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
}

.signs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.sign-card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.sign-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.sign-card h4 {
    color: var(--teal-accent);
    margin-bottom: 0.5rem;
}

.strategies-list {
    margin: 2rem 0;
}

.strategy {
    margin: 2rem 0;
    padding: 1.5rem;
    background: var(--background-light);
    border-radius: var(--border-radius);
}

.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.tip-card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: var(--transition);
}

.tip-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.tip-card h4 {
    color: var(--deep-navy);
    margin-bottom: 0.5rem;
}

.cta-section {
    background: linear-gradient(135deg, var(--teal-accent), var(--deep-navy));
    color: var(--white);
    padding: 3rem 2rem;
    border-radius: var(--border-radius-lg);
    text-align: center;
    margin: 3rem 0;
}

.cta-card {
    max-width: 800px;
    margin: 0 auto;
}

.cta-card h2 {
    color: var(--white);
    margin-bottom: 1.5rem;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.conclusion {
    background: var(--background-light);
    padding: 3rem;
    border-radius: var(--border-radius-lg);
    margin: 3rem 0;
}

.final-cta {
    text-align: center;
    margin-top: 2rem;
    padding: 2rem;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

/* Services Teaser */
.services-teaser {
    background: var(--white);
    padding: 4rem 0;
}

.services-teaser h2 {
    text-align: center;
    margin-bottom: 3rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--background-light);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--teal-accent), var(--warm-highlight));
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    border-radius: 50%;
    position: relative;
}

.service-icon.brands-icon {
    background: linear-gradient(135deg, var(--teal-accent), var(--deep-navy));
}

.service-icon.cleaning-icon {
    background: linear-gradient(135deg, var(--warm-highlight), var(--teal-accent));
}

.service-icon.vrv-icon {
    background: linear-gradient(135deg, var(--deep-navy), var(--soft-slate));
}

.service-icon.gas-icon {
    background: linear-gradient(135deg, var(--teal-accent), var(--warm-highlight));
}

.service-icon.maintenance-icon {
    background: linear-gradient(135deg, var(--success), var(--teal-accent));
}

.service-icon.emergency-icon {
    background: linear-gradient(135deg, var(--error), var(--warning));
}

.service-card h3 {
    margin-bottom: 1rem;
    color: var(--deep-navy);
}

.service-card p {
    margin-bottom: 1.5rem;
    color: var(--soft-slate);
}

.service-card a {
    font-weight: 600;
    color: var(--teal-accent);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border: 2px solid var(--teal-accent);
    border-radius: var(--border-radius);
    transition: var(--transition);
    display: inline-block;
}

.service-card a:hover {
    background: var(--teal-accent);
    color: var(--white);
}

/* Testimonials */
.testimonials {
    background: var(--background-light);
    padding: 4rem 0;
}

.testimonials h2 {
    text-align: center;
    margin-bottom: 3rem;
}

.testimonials-slider {
    max-width: 600px;
    margin: 0 auto;
    position: relative;
    height: 200px;
}

.testimonial {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    opacity: 0;
    transition: opacity 0.6s ease;
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    text-align: center;
}

.testimonial.active {
    opacity: 1;
}

.testimonial p {
    font-style: italic;
    margin-bottom: 1rem;
    color: var(--dark-grey);
}

.testimonial cite {
    font-weight: 600;
    color: var(--teal-accent);
}

/* About Page Styles */
.about-intro {
    background: var(--white);
    padding: 4rem 0;
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text h2 {
    margin-bottom: 2rem;
}

.about-stats {
    background: var(--background-light);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    text-align: center;
}

.stat-item {
    margin-bottom: 2rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--teal-accent);
    font-family: var(--font-heading);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--soft-slate);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.why-choose-us {
    background: var(--background-light);
    padding: 4rem 0;
}

.why-choose-us h2 {
    text-align: center;
    margin-bottom: 3rem;
}

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

.feature-item {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.feature-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1.5rem;
    border-radius: 50%;
    position: relative;
}

.feature-icon.safety-icon {
    background: linear-gradient(135deg, var(--success), var(--teal-accent));
}

.feature-icon.reliability-icon {
    background: linear-gradient(135deg, var(--teal-accent), var(--deep-navy));
}

.feature-icon.expertise-icon {
    background: linear-gradient(135deg, var(--warm-highlight), var(--teal-accent));
}

.feature-icon.support-icon {
    background: linear-gradient(135deg, var(--deep-navy), var(--soft-slate));
}

.brands-section {
    background: var(--white);
    padding: 4rem 0;
    text-align: center;
}

.brands-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin: 2rem 0;
}

.brand-pill {
    background: var(--background-light);
    color: var(--deep-navy);
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    font-weight: 600;
    transition: var(--transition);
    border: 2px solid transparent;
}

.brand-pill:hover {
    background: var(--teal-accent);
    color: var(--white);
    transform: scale(1.05);
}

.brands-note {
    margin-top: 2rem;
    font-style: italic;
    color: var(--soft-slate);
}

.team-section {
    background: var(--background-light);
    padding: 4rem 0;
}

.team-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.team-credentials {
    list-style: none;
    margin: 1.5rem 0;
}

.team-credentials li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 2rem;
}

.team-credentials li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--teal-accent);
    font-weight: bold;
}

.values-list {
    margin-top: 1.5rem;
}

.value-item {
    background: var(--white);
    padding: 1.5rem;
    margin: 1rem 0;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.value-item:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
}

.value-item h4 {
    color: var(--teal-accent);
    margin-bottom: 0.5rem;
}

.service-area {
    background: var(--white);
    padding: 4rem 0;
}

.service-area-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: center;
}

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

.map-container {
    background: var(--background-light);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    position: relative;
}

.map-container h3 {
    color: var(--deep-navy);
    margin-bottom: 0.5rem;
}

.coverage-badge {
    background: var(--teal-accent);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-top: 1rem;
    display: inline-block;
}

/* Solutions Page */
.solutions-intro {
    background: var(--white);
    padding: 4rem 0;
    text-align: center;
}

.intro-content {
    max-width: 800px;
    margin: 0 auto;
}

.solutions-accordion {
    background: var(--background-light);
    padding: 4rem 0;
}

.accordion {
    max-width: 900px;
    margin: 0 auto;
}

.accordion-item {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.accordion-header {
    width: 100%;
    background: none;
    border: none;
    padding: 1.5rem 2rem;
    text-align: left;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--deep-navy);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.accordion-header:hover {
    background: var(--background-light);
}

.accordion-icon {
    width: 20px;
    height: 20px;
    position: relative;
    transition: var(--transition);
}

.accordion-icon::before,
.accordion-icon::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    background: var(--teal-accent);
    transition: var(--transition);
}

.accordion-icon::before {
    width: 20px;
    height: 2px;
    transform: translate(-50%, -50%);
}

.accordion-icon::after {
    width: 2px;
    height: 20px;
    transform: translate(-50%, -50%);
}

.accordion-header[aria-expanded="true"] .accordion-icon {
    transform: rotate(45deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.accordion-content.open {
    max-height: 1000px;
}

.solution-details {
    padding: 0 2rem 2rem;
}

.solution-details h4 {
    color: var(--teal-accent);
    margin: 1.5rem 0 1rem;
}

.solution-details ul {
    list-style: none;
    margin: 1rem 0;
}

.solution-details li {
    padding: 0.25rem 0;
    position: relative;
    padding-left: 1.5rem;
}

.solution-details li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--teal-accent);
    font-weight: bold;
}

.service-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
    padding: 1.5rem;
    background: var(--background-light);
    border-radius: var(--border-radius);
}

.detail-item {
    font-size: 0.9rem;
}

.detail-item strong {
    color: var(--deep-navy);
    display: block;
    margin-bottom: 0.25rem;
}

.pricing-guide {
    background: var(--white);
    padding: 4rem 0;
}

.pricing-factors {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.factor {
    background: var(--background-light);
    padding: 1.5rem;
    border-radius: var(--border-radius);
}

.factor h4 {
    color: var(--teal-accent);
    margin-bottom: 0.5rem;
}

.pricing-note {
    background: linear-gradient(135deg, var(--teal-accent), var(--deep-navy));
    color: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    text-align: center;
    margin-top: 2rem;
}

.cta-cards {
    background: var(--background-light);
    padding: 4rem 0;
}

.cta-cards-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.cta-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: var(--transition);
}

.cta-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.cta-card-content {
    padding: 2rem;
    text-align: center;
}

/* Maintenance Guide */
.guide-intro {
    background: var(--white);
    padding: 4rem 0;
}

.intro-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.download-section {
    margin-top: 3rem;
}

.download-card {
    background: linear-gradient(135deg, var(--teal-accent), var(--deep-navy));
    color: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    text-align: center;
    max-width: 400px;
    margin: 0 auto;
}

.download-card h3 {
    color: var(--white);
    margin-bottom: 1rem;
}

.maintenance-sections {
    background: var(--background-light);
    padding: 4rem 0;
}

.sections-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.maintenance-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: var(--transition);
}

.maintenance-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.card-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1rem;
    border-radius: 50%;
    position: relative;
}

.card-icon.monthly-icon {
    background: linear-gradient(135deg, var(--teal-accent), var(--deep-navy));
}

.card-icon.quarterly-icon {
    background: linear-gradient(135deg, var(--warm-highlight), var(--teal-accent));
}

.card-icon.annual-icon {
    background: linear-gradient(135deg, var(--success), var(--teal-accent));
}

.card-icon.emergency-icon {
    background: linear-gradient(135deg, var(--error), var(--warning));
}

.card-content {
    padding: 2rem;
    text-align: center;
}

.collapsible-content {
    margin-top: 1.5rem;
}

.collapsible-toggle {
    background: var(--teal-accent);
    color: var(--white);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
}

.collapsible-toggle:hover {
    background: var(--deep-navy);
}

.tips-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    padding: 0;
}

.tips-content.open {
    max-height: 1000px;
    padding: 1.5rem 0 0;
}

.tips-content h4 {
    color: var(--deep-navy);
    margin: 1.5rem 0 0.5rem;
}

.tips-content ul {
    list-style: none;
    margin: 1rem 0;
    text-align: left;
}

.tips-content li {
    padding: 0.25rem 0;
    position: relative;
    padding-left: 1.5rem;
}

.tips-content li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--teal-accent);
    font-weight: bold;
}

.professional-note {
    background: var(--background-light);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin: 1.5rem 0;
    border-left: 4px solid var(--teal-accent);
}

.emergency-contact {
    background: var(--background-light);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin: 1.5rem 0;
    text-align: center;
}

.emergency-button {
    background: var(--error);
    color: var(--white);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    display: inline-block;
    margin-top: 1rem;
    transition: var(--transition);
}

.emergency-button:hover {
    background: var(--deep-navy);
    transform: translateY(-2px);
}

.maintenance-tips {
    background: var(--white);
    padding: 4rem 0;
}

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

.tip-item {
    background: var(--background-light);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    text-align: center;
    transition: var(--transition);
}

.tip-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.tip-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    border-radius: 50%;
    position: relative;
}

.tip-icon.humidity-icon {
    background: linear-gradient(135deg, var(--teal-accent), var(--deep-navy));
}

.tip-icon.dust-icon {
    background: linear-gradient(135deg, var(--soft-slate), var(--deep-navy));
}

.tip-icon.temperature-icon {
    background: linear-gradient(135deg, var(--warm-highlight), var(--teal-accent));
}

.tip-icon.timing-icon {
    background: linear-gradient(135deg, var(--success), var(--teal-accent));
}

.warning-signs {
    background: var(--background-light);
    padding: 4rem 0;
}

.warning-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin: 2rem 0;
}

.warning-item {
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
}

.warning-item.urgent {
    background: linear-gradient(135deg, var(--error), #c0392b);
    color: var(--white);
}

.warning-item.scheduled {
    background: linear-gradient(135deg, var(--warning), #d68910);
    color: var(--white);
}

.warning-item h4 {
    color: inherit;
    margin-bottom: 1rem;
}

.warning-item ul {
    list-style: none;
}

.warning-item li {
    padding: 0.25rem 0;
    position: relative;
    padding-left: 1.5rem;
}

.warning-item li::before {
    content: '⚠';
    position: absolute;
    left: 0;
    font-size: 1.1rem;
}

.professional-cta {
    background: var(--white);
    padding: 4rem 0;
    text-align: center;
}

.professional-cta .cta-content {
    max-width: 800px;
    margin: 0 auto;
}

/* Contact Page */
.contact-main {
    background: var(--white);
    padding: 4rem 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
}

.contact-form {
    max-width: 600px;
}

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

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--deep-navy);
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--light-grey);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--teal-accent);
    box-shadow: 0 0 0 3px rgba(15, 181, 166, 0.1);
}

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

.error-message {
    display: block;
    color: var(--error);
    font-size: 0.875rem;
    margin-top: 0.25rem;
    min-height: 1.2rem;
}

.submit-button {
    background: var(--teal-accent);
    color: var(--white);
    border: none;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
}

.submit-button:hover {
    background: var(--deep-navy);
    transform: translateY(-2px);
}

.success-message {
    background: var(--success);
    color: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    text-align: center;
    margin-top: 2rem;
}

.success-content h3 {
    color: var(--white);
    margin-bottom: 0.5rem;
}

.success-icon {
    width: 60px;
    height: 60px;
    background: var(--white);
    border-radius: 50%;
    margin: 0 auto 1rem;
    position: relative;
}

.success-icon::before {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--success);
    font-size: 2rem;
    font-weight: bold;
}

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

.contact-info-card,
.business-hours-card,
.singapore-map-card {
    background: var(--background-light);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.contact-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    position: relative;
    flex-shrink: 0;
}

.contact-icon.email-icon {
    background: linear-gradient(135deg, var(--teal-accent), var(--deep-navy));
}

.contact-icon.phone-icon {
    background: linear-gradient(135deg, var(--warm-highlight), var(--teal-accent));
}

.contact-icon.location-icon {
    background: linear-gradient(135deg, var(--success), var(--teal-accent));
}

.contact-details h4 {
    color: var(--deep-navy);
    margin-bottom: 0.25rem;
}

.contact-details small {
    color: var(--soft-slate);
    font-size: 0.875rem;
}

.hours-list {
    margin: 1.5rem 0;
}

.hours-item {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--light-grey);
}

.hours-item:last-child {
    border-bottom: none;
}

.day {
    font-weight: 500;
    color: var(--deep-navy);
}

.time {
    color: var(--soft-slate);
}

.emergency-note {
    background: var(--white);
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-top: 1rem;
    border-left: 4px solid var(--error);
}

.singapore-outline {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    position: relative;
    min-height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.map-label {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--deep-navy);
}

.coverage-points {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.point {
    position: absolute;
    width: 12px;
    height: 12px;
    background: var(--teal-accent);
    border-radius: 50%;
    font-size: 0.75rem;
    color: var(--deep-navy);
    font-weight: 600;
}

.point.north { top: 10px; left: 50%; transform: translateX(-50%); }
.point.south { bottom: 10px; left: 50%; transform: translateX(-50%); }
.point.east { top: 50%; right: 10px; transform: translateY(-50%); }
.point.west { top: 50%; left: 10px; transform: translateY(-50%); }
.point.central { top: 50%; left: 50%; transform: translate(-50%, -50%); }

.emergency-contact {
    background: var(--background-light);
    padding: 4rem 0;
}

.emergency-banner {
    background: linear-gradient(135deg, var(--error), #c0392b);
    color: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

.emergency-content {
    display: flex;
    align-items: center;
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.emergency-icon {
    width: 80px;
    height: 80px;
    background: var(--white);
    border-radius: 50%;
    flex-shrink: 0;
    position: relative;
}

.emergency-icon::before {
    content: '🚨';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2rem;
}

.emergency-text h3 {
    color: var(--white);
    margin-bottom: 0.5rem;
}

.emergency-button {
    background: var(--white);
    color: var(--error);
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 700;
    transition: var(--transition);
    white-space: nowrap;
}

.emergency-button:hover {
    background: var(--warm-highlight);
    color: var(--deep-navy);
    transform: translateY(-2px);
}

.response-promise {
    background: var(--white);
    padding: 4rem 0;
}

.response-promise h2 {
    text-align: center;
    margin-bottom: 3rem;
}

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

.promise-item {
    background: var(--background-light);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    text-align: center;
    transition: var(--transition);
}

.promise-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.promise-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    border-radius: 50%;
    position: relative;
}

.promise-icon.response-icon {
    background: linear-gradient(135deg, var(--teal-accent), var(--deep-navy));
}

.promise-icon.quote-icon {
    background: linear-gradient(135deg, var(--warm-highlight), var(--teal-accent));
}

.promise-icon.quality-icon {
    background: linear-gradient(135deg, var(--success), var(--teal-accent));
}

/* Footer */
.footer {
    background: var(--deep-navy);
    color: var(--white);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.footer-logo .logo-icon {
    width: 30px;
    height: 30px;
}

.footer-logo span {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
}

.footer-section h4 {
    color: var(--white);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: #b0c4de;
    transition: var(--transition-fast);
}

.footer-section a:hover {
    color: var(--teal-accent);
}

.footer-bottom {
    border-top: 1px solid #34495e;
    padding-top: 1rem;
    text-align: center;
    color: #b0c4de;
    font-size: 0.9rem;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

/* Focus Styles for Accessibility */
*:focus {
    outline: 3px solid var(--teal-accent);
    outline-offset: 2px;
}

button:focus,
.cta-button:focus,
.nav-link:focus {
    outline: 3px solid var(--warm-highlight);
}

/* Mobile Responsive Design */
@media (max-width: 1024px) {
    .container {
        padding: 0 1.5rem;
    }
    
    .text-columns,
    .temperature-effects,
    .team-content,
    .about-content,
    .service-area-content,
    .contact-grid,
    .warning-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .cta-cards-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    /* Hide desktop nav, show mobile */
    .nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    /* Typography adjustments */
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.5rem; }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .page-hero-content h1 {
        font-size: 2.5rem;
    }
    
    /* Layout adjustments */
    .hero,
    .page-hero {
        padding: 100px 0 60px;
        text-align: center;
    }
    
    .article-section {
        margin-bottom: 3rem;
        padding: 1.5rem 0;
    }
    
    .badges-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .services-grid,
    .features-grid,
    .sections-grid {
        grid-template-columns: 1fr;
    }
    
    .signs-grid,
    .tips-grid,
    .pricing-factors,
    .promise-grid {
        grid-template-columns: 1fr;
    }
    
    /* Footer adjustments */
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    /* Form adjustments */
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    /* Emergency banner */
    .emergency-content {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .emergency-text {
        order: 2;
    }
    
    .emergency-button {
        order: 3;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    
    .hero-title,
    .page-hero-content h1 {
        font-size: 2rem;
    }
    
    .badges-grid {
        grid-template-columns: 1fr;
    }
    
    .brand-pill {
        font-size: 0.9rem;
        padding: 0.5rem 1rem;
    }
    
    .service-card,
    .maintenance-card,
    .feature-item,
    .tip-item {
        padding: 1.5rem;
    }
    
    .accordion-header {
        padding: 1rem 1.5rem;
        font-size: 1.1rem;
    }
    
    .solution-details {
        padding: 0 1.5rem 1.5rem;
    }
}