/* 
  Fresh Air Techs - Professional Light Mode Design
  Clean, high-performance, and authoritative.
*/

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

:root {
    /* Color Palette - Exact RTF Matches */
    --brand-orange: #FB7B0D;
    --brand-purple: #3B2F86;
    --brand-blue: #1C4AE0;
    --brand-blue-hover: #163bb3;

    /* Neutral Palette */
    --white: #FFFFFF;
    --slate-50: #f8fafc;
    --slate-100: #f1f5f9;
    --slate-200: #e2e8f0;
    --slate-800: #1e293b;
    --slate-900: #0f172a;
    --slate-950: #020617;

    /* Typography */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;
    --h1-fluid: clamp(1.875rem, 6vw, 3.75rem);
    --h2-fluid: clamp(2rem, 5vw, 3.5rem);
    --body-fluid: clamp(1rem, 2vw, 1.125rem);

    /* Spacing */
    --section-padding: 80px 5%;
    --container-width: 1200px;

    /* Transitions */
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--white);
    color: var(--slate-800);
    font-family: var(--font-body);
    line-height: 1.6;
    font-size: var(--body-fluid);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
    font-family: var(--font-heading);
    text-transform: uppercase;
    letter-spacing: -0.01em;
    line-height: 1.1;
}

h1 {
    font-size: var(--h1-fluid);
    color: var(--slate-950);
}

h2 {
    font-size: var(--h2-fluid);
    color: var(--brand-purple);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    width: 100%;
}

/* Grid System */
.grid {
    display: grid;
    gap: 2rem;
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 968px) {

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
}

/* Utility Classes */
.text-cobalt {
    color: var(--brand-blue);
}

.text-orange {
    color: var(--brand-orange);
}

.text-purple {
    color: var(--brand-purple);
}

.bg-slate {
    background-color: var(--slate-50);
}

.bg-purple {
    background-color: var(--brand-purple);
    color: white;
}

.reveal-text {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease-out;
}

.reveal-text.active {
    opacity: 1;
    transform: translateY(0);
}

/* Visibility Utilities */
.hide-on-mobile {
    display: block;
}

.show-on-mobile {
    display: none;
}

@media (max-width: 768px) {
    .hide-on-mobile {
        display: none !important;
    }

    .show-on-mobile {
        display: block !important;
    }

    .show-on-mobile.btn {
        display: inline-flex !important;
    }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1.25rem 2.5rem;
    font-family: var(--font-heading);
    font-weight: 800;
    border-radius: 6px;
    cursor: pointer;
    border: none;
    transition: var(--transition-smooth);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.btn-primary {
    background-color: var(--brand-blue);
    color: white;
}

.btn-primary:hover {
    background-color: var(--brand-blue-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(28, 74, 224, 0.2);
}

.btn-outline {
    border: 2px solid var(--brand-purple);
    color: var(--brand-purple);
    background: transparent;
}

.btn-outline:hover {
    background-color: var(--brand-purple);
    color: #ffffff;
}

/* Navigation */
nav {
    position: sticky;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: var(--transition-smooth);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}

nav.scrolled {
    background: rgba(255, 255, 255, 0.95);
    padding: 0.75rem 0;
    backdrop-filter: blur(20px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 5%;
}

.logo img {
    height: 50px;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

@media (max-width: 968px) {
    .nav-links {
        display: none;
    }
}

.nav-links a {
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    color: var(--brand-purple);
}

.nav-links a:hover {
    color: var(--brand-orange);
}

/* Hero Section */
.hero {
    padding: 40px 0 80px;
    background: linear-gradient(rgba(255, 255, 255, 0.85), rgba(255, 255, 255, 0.85)), url('../images/hero-fresh-air-techs-duct-cleaning.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 4rem;
    align-items: center;
}

.hero-content span {
    font-weight: 800;
    letter-spacing: 0.2em;
    font-size: 0.8rem;
    margin-bottom: 1.5rem;
    display: block;
    color: var(--brand-blue);
}

.hero-content h1 {
    margin-bottom: 2rem;
}

.hero-content p {
    font-size: 1.15rem;
    color: var(--slate-800);
    max-width: 550px;
    margin: 0 0 2.5rem 0;
}

.hero-btns {
    display: flex;
    gap: 1rem;
}

.mobile-hero-btns {
    display: none;
}

.special-offer {
    background: white;
    padding: 3.5rem;
    border-radius: 12px;
    text-align: center;
    border: 1px solid var(--slate-100);
    box-shadow: 0 30px 60px -12px rgba(0, 0, 0, 0.1);
    position: relative;
    z-index: 10;
}

.offer-label {
    font-size: 0.75rem;
    font-weight: 900;
    color: var(--brand-purple);
    letter-spacing: 0.2em;
}

.price {
    display: flex;
    justify-content: center;
    align-items: baseline;
    margin: 1.5rem 0;
    color: var(--brand-orange);
}

.currency {
    font-size: 2.5rem;
    font-weight: 800;
    margin-right: 0.25rem;
}

.amount {
    font-size: 9rem;
    font-weight: 900;
    line-height: 0.8;
}

.special-offer p {
    font-family: var(--font-heading);
    font-weight: 800;
    margin-bottom: 2.5rem;
    color: var(--brand-purple);
    font-size: 1.25rem;
    max-width: 100%;
}

/* Services Section */
section {
    padding: var(--section-padding);
}

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

.section-header h2 {
    margin-bottom: 1.5rem;
}

.service-card {
    padding: 3.5rem 2.5rem;
    border-radius: 12px;
    background: white;
    border: 1px solid var(--slate-100);
    transition: var(--transition-smooth);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
    border-color: var(--brand-orange);
}

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

.service-card h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
    color: var(--brand-purple);
}

/* Why Choose Us Icons */
.feature-list {
    margin: 2rem 0;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.feature-list li {
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.9rem;
    color: var(--brand-purple);
}

.feature-list i {
    color: var(--brand-orange);
    font-size: 1.25rem;
}

/* Before/After Section */

/* Before After Grid & Mobile Slider */
.ba-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.ba-card {
    aspect-ratio: 1/1;
    border-radius: var(--radius-md);
    overflow: hidden;
    position: relative;
    box-shadow: var(--shadow-md);
    cursor: pointer;
    background-color: var(--slate-100);
}

.ba-card img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease;
}

.ba-card:hover img {
    transform: scale(1.02);
}

/* Testimonial Slider */
.testimonial-slider {
    position: relative;
    max-width: 900px;
    margin: 4rem auto 0;
    overflow: hidden;
}

.testimonial-container {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.testimonial-card {
    min-width: 100%;
    padding: 3.5rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    opacity: 0.5;
    transform: scale(0.95);
    transition: var(--transition-smooth);
}

.testimonial-card.active {
    opacity: 1;
    transform: scale(1);
}

.rating {
    color: var(--brand-orange);
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
}

.testimonial-card blockquote {
    font-weight: 500;
    font-style: italic;
    color: var(--brand-purple);
    margin-bottom: 2rem;
    font-size: 1.25rem;
    line-height: 1.6;
}

.testimonial-author {
    border-top: 1px solid var(--slate-100);
    padding-top: 1.5rem;
    margin-top: 1.5rem;
}

.testimonial-author strong {
    color: var(--brand-purple);
    display: block;
    font-size: 1.1rem;
    text-transform: uppercase;
}

.testimonial-author span {
    font-size: 0.85rem;
    color: var(--brand-orange);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.slider-nav {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2.5rem;
}

.slider-nav button {
    background: white;
    border: 2px solid var(--brand-orange);
    color: var(--brand-orange);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.slider-nav button:hover {
    background: var(--brand-orange);
    color: white;
}

/* FAQ */
.faq-accordion {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 1rem;
    padding: 2rem;
    background: white;
    border: 1px solid var(--slate-100);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.faq-item:hover {
    border-color: var(--brand-orange);
}

.faq-question {
    font-weight: 800;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--brand-purple);
    font-size: 1.1rem;
}

.faq-answer {
    margin-top: 1.25rem;
    display: none;
    color: var(--slate-800);
    padding-right: 2rem;
}

/* Contact Section */
.contact-wrapper {
    background: white;
    padding: 5rem;
    border-radius: 20px;
    border: 1px solid var(--slate-100);
    box-shadow: 0 40px 80px -20px rgba(0, 0, 0, 0.08);
}

.contact-info h3 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--brand-purple);
}

.info-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.info-item i {
    font-size: 1.5rem;
    color: var(--brand-orange);
}

.input-wrap {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}

.input-wrap label {
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--brand-purple);
}

.lead-form input,
.lead-form select,
.lead-form textarea {
    padding: 1.125rem;
    background: var(--slate-50);
    border: 1px solid var(--slate-200);
    color: var(--brand-purple);
    border-radius: 6px;
    font-family: var(--font-body);
    font-size: 1rem;
}

.lead-form select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%233B2F86'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1.5rem;
}

.lead-form textarea {
    height: 120px;
    resize: none;
}

/* Contact Placeholder (Phase 4) */
.placeholder-container {
    height: 100%;
    min-height: 600px;
    /* Increased height for GHL form */
    display: block;
    width: 100%;
}

.form-placeholder {
    display: none;
    /* Hide old placeholder styles */
}



/* Importance Sections - Alternating Layout */
.importance-sections {
    background: white;
    padding: 6rem 0;
}

.importance-container {
    display: flex;
    flex-direction: column;
    gap: 6rem;
}

.importance-row {
    display: flex;
    align-items: center;
    gap: 4rem;
}

.importance-row:nth-child(even) {
    flex-direction: row-reverse;
}

.importance-content {
    flex: 1;
}

.importance-image {
    flex: 1;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.importance-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}

.importance-image:hover img {
    transform: scale(1.03);
}

/* Why Choose Us - 2x2 Grid */
.grid-2-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

@media (max-width: 768px) {

    .importance-row,
    .importance-row:nth-child(even) {
        flex-direction: column;
        gap: 2rem;
    }

    .grid-2-2 {
        grid-template-columns: 1fr;
    }

    .hero {
        padding-top: 35px;
        /* Reduced by ~70% from 160px */
        padding-bottom: 40px;
    }

    .hero-content h1 {
        font-size: 2.0rem;
        /* Specific check for mobile H1 */
    }

    .ba-grid {
        display: flex;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        gap: 1rem;
        padding-bottom: 1rem;
        /* Space for scrollbar if visible */
        -webkit-overflow-scrolling: touch;
    }

    .ba-card {
        min-width: 85%;
        /* Show part of next card to encourage scroll */
        scroll-snap-align: center;
    }

    .container {
        padding: 0 5px;
        /* Mobile edge padding */
    }
}

/* Footer */
footer {
    padding: 80px 0 0;
    background: #0a1640;
    color: white;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 3rem;
    align-items: start;
}

.footer-logo img {
    height: 60px;
    /* Slightly larger logo */
    margin-bottom: 1rem;
}

.footer-nav h4,
.social-links h4,
.footer-info h4 {
    color: var(--brand-orange);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.footer-nav ul li,
.social-icons a,
.footer-info p {
    margin-bottom: 0.8rem;
    opacity: 0.9;
    font-size: 0.95rem;
}

.social-icons {
    display: flex;
    flex-direction: column;
}

.footer-info i {
    color: var(--brand-orange);
    margin-right: 0.5rem;
}

/* Footer Bottom Bar */
.footer-bottom {
    background: #081235;
    /* Slightly darker shade */
    padding: 1.5rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    margin-top: 4rem;
}

.footer-bottom .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    font-size: 0.85rem;
}

.footer-bottom p {
    margin: 0;
    opacity: 0.7;
}

.footer-legal a {
    color: white;
    opacity: 0.7;
    transition: opacity 0.3s;
}

.footer-legal a:hover {
    opacity: 1;
    color: var(--brand-orange);
}

.footer-managed a {
    color: var(--brand-orange);
    font-weight: 600;
}

@media (max-width: 968px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2.5rem;
    }

    .footer-logo {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .footer-bottom .container {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media (max-width: 968px) {
    .nav-wrapper {
        padding: 0 20px;
    }

    .hero-grid {
        grid-template-columns: 1fr;
    }

    .ba-grid {
        grid-template-columns: 1fr;
    }

    .testimonial-grid {
        grid-template-columns: 1fr;
    }

    .feature-list {
        grid-template-columns: 1fr;
    }

    .contact-wrapper {
        padding: 3rem 2rem;
    }

    .special-offer {
        padding: 2.5rem 1.5rem;
    }

    .amount {
        font-size: 7rem;
    }
}

/* Mobile Optimizations */
@media (max-width: 768px) {

    /* Header */
    .logo img {
        height: 35px;
    }

    nav {
        padding: 0.6rem 0;
    }

    /* Hero */
    .hero {
        padding-top: 80px;
        padding-bottom: 2rem;
    }

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

    .hero-content p {
        margin-left: auto;
        margin-right: auto;
    }

    .mobile-hero-btns {
        display: flex;
        flex-direction: column;
        align-items: center;
        /* Center the buttons */
        gap: 1rem;
        margin-top: 2rem;
        width: 100%;
    }

    .mobile-hero-btns .btn {
        width: 50%;
        /* 50% size as requested */
        padding: 0.75rem 1rem;
        /* Smaller padding */
        font-size: 0.8rem;
        /* Smaller font */
    }

    /* Testimonials - Make it smaller */
    .testimonial-card {
        padding: 1.5rem;
        min-height: auto;
    }

    .testimonial-card blockquote {
        font-size: 0.9rem;
        margin-bottom: 1rem;
        line-height: 1.4;
    }

    .testimonial-author {
        padding-top: 1rem;
        margin-top: 1rem;
    }

    .testimonial-author strong {
        font-size: 0.9rem;
    }

    .testimonial-author span {
        font-size: 0.75rem;
    }

    .rating {
        font-size: 1rem;
        margin-bottom: 0.75rem;
    }

    /* Contact Section */
    .contact-wrapper {
        padding: 1.5rem;
    }

    .contact-info {
        text-align: center;
        margin-bottom: 2rem;
    }
}