/*
Theme Name: Astra Child
Theme URI: 
Template: astra
Author: Antigravity
Author URI: 
Description: Custom child theme for Earth Air Condition - Premium Modern Style.
Version: 1.2.0
Text Domain: astra-child
*/

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

/* ==========================================================================
   Design System Variables (Premium Modern Style)
   ========================================================================== */
:root {
    --hvac-primary: #0ea5e9; /* Sleek vibrant blue */
    --hvac-primary-dark: #0284c7;
    --hvac-secondary: #0f172a; /* Deep navy/slate for dark contrast */
    --hvac-accent: #38bdf8;
    
    --hvac-bg-main: #f8fafc;
    --hvac-bg-card: rgba(255, 255, 255, 0.85); /* For glassmorphism */
    
    --hvac-text-main: #1e293b;
    --hvac-text-light: #64748b;
    --hvac-text-white: #ffffff;
    
    --hvac-border: #e2e8f0;
    
    --hvac-shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
    --hvac-shadow-md: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -1px rgba(0,0,0,0.03);
    --hvac-shadow-lg: 0 10px 25px -3px rgba(0,0,0,0.05), 0 4px 6px -2px rgba(0,0,0,0.03);
    --hvac-shadow-hover: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
    
    --hvac-gradient-hero: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --hvac-gradient-primary: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
    
    --hvac-whatsapp: #10b981; 
    --hvac-whatsapp-hover: #059669;
    
    --hvac-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --hvac-radius-md: 12px;
    --hvac-radius-lg: 24px;
}

/* ==========================================================================
   Base Styles
   ========================================================================== */
body {
    color: var(--hvac-text-main);
    background-color: var(--hvac-bg-main);
    font-family: 'Inter', sans-serif;
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--hvac-secondary);
    font-weight: 700;
    margin-top: 0;
    line-height: 1.2;
}

a {
    color: var(--hvac-primary);
    text-decoration: none;
    transition: var(--hvac-transition);
}
a:hover {
    color: var(--hvac-primary-dark);
}

/* ==========================================================================
   Layout Helpers & Components
   ========================================================================== */
.hvac-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    box-sizing: border-box;
}

.hvac-section {
    padding: 80px 0;
}

/* Buttons */
.hvac-btn-primary {
    background: var(--hvac-gradient-primary);
    color: var(--hvac-text-white) !important;
    padding: 14px 28px;
    border: none;
    border-radius: var(--hvac-radius-md);
    font-weight: 600;
    font-size: 15px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    cursor: pointer;
    box-shadow: 0 4px 14px 0 rgba(14, 165, 233, 0.39);
    transition: var(--hvac-transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.hvac-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(14, 165, 233, 0.4);
    text-decoration: none;
}

.hvac-btn-whatsapp {
    background-color: var(--hvac-whatsapp);
    color: var(--hvac-text-white) !important;
    padding: 16px 32px;
    border: none;
    border-radius: var(--hvac-radius-md);
    font-weight: 600;
    font-size: 16px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    box-shadow: 0 4px 14px 0 rgba(16, 185, 129, 0.39);
    transition: var(--hvac-transition);
}
.hvac-btn-whatsapp:hover {
    background-color: var(--hvac-whatsapp-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hvac-hero {
    background: var(--hvac-gradient-hero);
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.hvac-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(14,165,233,0.15) 0%, rgba(255,255,255,0) 70%);
    border-radius: 50%;
    z-index: 1;
}

.hvac-hero-content {
    position: relative;
    z-index: 2;
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    align-items: center;
}

/* Vertical Slider */
.hvac-hero-slider {
    flex: 1.5;
    min-width: 300px;
    position: relative;
    height: 400px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--hvac-radius-lg);
    overflow: hidden;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.hvac-v-slider {
    position: relative;
    width: 100%;
    height: 100%;
}

.hvac-v-slide {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    opacity: 0;
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 30px;
    box-sizing: border-box;
}

.hvac-v-slide.active {
    top: 0;
    opacity: 1;
}
.hvac-v-slide.prev {
    top: -100%;
    opacity: 0;
}

.hvac-v-slide-img {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}
.hvac-v-slide-img img {
    max-height: 250px;
    object-fit: contain;
    filter: drop-shadow(0 10px 15px rgba(0,0,0,0.3));
    animation: float 6s ease-in-out infinite;
}

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

.hvac-v-slide-content {
    flex: 1;
    padding-left: 20px;
}
.hvac-v-slide-content h2 {
    color: var(--hvac-text-white);
    font-size: 2.2rem;
    margin-bottom: 15px;
    font-weight: 800;
}
.hvac-v-slide-content p {
    color: #94a3b8;
    font-size: 1.1rem;
    line-height: 1.6;
}

.hvac-v-slider-controls {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 10;
}
.hvac-v-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: var(--hvac-transition);
}
.hvac-v-dot.active {
    background: var(--hvac-primary);
    transform: scale(1.3);
}

.hvac-glass-card {
    flex: 1;
    min-width: 320px;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--hvac-radius-lg);
    padding: 40px;
    color: var(--hvac-text-white);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    transition: var(--hvac-transition);
}

.hvac-glass-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.2);
}

.hvac-glass-card h3 {
    color: var(--hvac-text-white);
    font-size: 1.5rem;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 15px;
}
.hvac-glass-card h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--hvac-primary);
    border-radius: 3px;
}

.hvac-contact-item {
    margin-bottom: 20px;
    display: flex;
    align-items: flex-start;
    gap: 15px;
}
.hvac-contact-icon {
    font-size: 20px;
    color: var(--hvac-primary);
    background: rgba(14, 165, 233, 0.1);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}
.hvac-contact-detail strong {
    display: block;
    font-size: 0.9rem;
    color: #94a3b8;
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.hvac-contact-detail span {
    font-size: 1.1rem;
    font-weight: 500;
}
.hvac-contact-phone {
    font-size: 1.7rem !important;
    font-weight: 700;
    color: var(--hvac-primary);
    text-shadow: 0 0 20px rgba(14,165,233,0.3);
}

/* Features Grid */
.hvac-features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.hvac-feature-box {
    text-align: center;
    padding: 40px 20px;
    background: #f8fafc;
    border-radius: var(--hvac-radius-lg);
    transition: var(--hvac-transition);
}

.hvac-feature-box:hover {
    transform: translateY(-5px);
    box-shadow: var(--hvac-shadow-md);
    background: #ffffff;
}

.hvac-feature-icon {
    font-size: 40px;
    margin-bottom: 20px;
}

.hvac-feature-box h4 {
    font-size: 1.25rem;
    margin-bottom: 10px;
}

.hvac-feature-box p {
    color: var(--hvac-text-light);
    line-height: 1.6;
    margin: 0;
}

@media (max-width: 768px) {
    .hvac-features-grid {
        grid-template-columns: 1fr;
    }
    .hvac-v-slide {
        flex-direction: column;
        padding: 20px;
        text-align: center;
    }
    .hvac-v-slide-content {
        padding-left: 0;
        margin-top: 20px;
    }
}

/* ==========================================================================
   Products Section
   ========================================================================== */
.hvac-section-title {
    text-align: center;
    margin-bottom: 50px;
}
.hvac-section-title h2 {
    font-size: 2.5rem;
    color: var(--hvac-secondary);
    margin-bottom: 15px;
}
.hvac-section-title p {
    color: var(--hvac-text-light);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

.hvac-grid-products {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

.hvac-product-card {
    background: var(--hvac-bg-card);
    border-radius: var(--hvac-radius-md);
    overflow: hidden;
    box-shadow: var(--hvac-shadow-md);
    transition: var(--hvac-transition);
    border: 1px solid var(--hvac-border);
    position: relative;
    display: flex;
    flex-direction: column;
}

.hvac-product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--hvac-shadow-hover);
    border-color: #cbd5e1;
}

.hvac-product-image {
    height: 220px;
    background: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid var(--hvac-border);
    padding: 20px;
    position: relative;
    overflow: hidden;
}

.hvac-product-image img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    transition: transform 0.5s ease;
}

.hvac-product-card:hover .hvac-product-image img {
    transform: scale(1.05);
}

.hvac-product-content {
    padding: 24px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.hvac-product-content h3 {
    font-size: 1.25rem;
    margin-bottom: 10px;
    color: var(--hvac-text-main);
}

.hvac-product-price {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--hvac-primary);
    margin-bottom: 20px;
}

.hvac-product-meta {
    margin-top: auto;
}

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

@media (max-width: 992px) {
    .hvac-grid-3-col {
        grid-template-columns: repeat(2, 1fr) !important;
    }
}

@media (max-width: 600px) {
    .hvac-grid-3-col {
        grid-template-columns: 1fr !important;
    }
}

/* Projects Gallery */
.hvac-projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.hvac-project-item {
    position: relative;
    border-radius: var(--hvac-radius-md);
    overflow: hidden;
    aspect-ratio: 4/3;
    cursor: pointer;
}

.hvac-project-img {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transition: transform 0.5s ease;
}

.hvac-project-item:hover .hvac-project-img {
    transform: scale(1.1);
}

.hvac-project-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(15, 23, 42, 0.9));
    padding: 30px 20px 20px;
    color: #fff;
    transform: translateY(20px);
    opacity: 0.9;
    transition: var(--hvac-transition);
}

.hvac-project-item:hover .hvac-project-overlay {
    transform: translateY(0);
    opacity: 1;
}

.hvac-project-overlay h3 {
    color: #fff;
    margin: 0 0 5px 0;
    font-size: 1.2rem;
}

.hvac-project-location {
    font-size: 0.85rem;
    color: #cbd5e1;
    display: flex;
    align-items: center;
    gap: 5px;
}

@media (max-width: 992px) {
    .hvac-projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 600px) {
    .hvac-projects-grid {
        grid-template-columns: 1fr;
    }
}

/* ==========================================================================
   Banner & Inquiry Form
   ========================================================================== */
.hvac-quote-banner {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    padding: 60px 0;
    text-align: center;
    border-top: 1px solid #bae6fd;
    border-bottom: 1px solid #bae6fd;
    position: relative;
}

.hvac-inquiry-section {
    background: var(--hvac-secondary);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.hvac-inquiry-section::before {
    content: '';
    position: absolute;
    bottom: -50%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(14,165,233,0.1) 0%, rgba(255,255,255,0) 70%);
    border-radius: 50%;
}

.hvac-inquiry-card {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 50px;
    border-radius: var(--hvac-radius-lg);
    width: 100%;
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 2;
    box-shadow: 0 25px 50px -12px rgba(0,0,0,0.5);
}

.hvac-inquiry-card h3 {
    color: var(--hvac-text-white);
    font-size: 2rem;
    margin-bottom: 30px;
}

.hvac-form-group {
    margin-bottom: 20px;
    text-align: left;
}

.hvac-input {
    width: 100%;
    padding: 16px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--hvac-radius-md);
    color: var(--hvac-text-white);
    font-size: 1rem;
    font-family: 'Inter', sans-serif;
    transition: var(--hvac-transition);
    box-sizing: border-box;
}

.hvac-input:focus {
    outline: none;
    border-color: var(--hvac-primary);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.1);
}

.hvac-input::placeholder {
    color: #94a3b8;
}

/* ==========================================================================
   Header & Footer Overrides
   ========================================================================== */
.custom-header-top {
    background: var(--hvac-text-white);
    padding: 20px 0;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    position: relative;
    z-index: 10;
}
.header-logo {
    font-size: 28px;
    font-weight: 800;
    color: var(--hvac-secondary);
    letter-spacing: -0.5px;
}
.header-logo span {
    color: var(--hvac-primary);
}
.custom-header-nav {
    background: var(--hvac-text-white);
    border-top: 1px solid var(--hvac-border);
    border-bottom: 1px solid var(--hvac-border);
}
.custom-header-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
}
.custom-header-nav li a {
    color: var(--hvac-text-main);
    padding: 18px 24px;
    display: block;
    font-weight: 500;
    font-size: 15px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.custom-header-nav li a:hover {
    color: var(--hvac-primary);
    background: var(--hvac-bg-main);
}

.custom-footer {
    margin-top: 0;
}
.footer-top {
    background: #0b1120;
    color: var(--hvac-text-white);
    padding: 80px 0 60px;
}
.footer-bottom {
    background: #020617;
    padding: 25px 0;
    text-align: center;
    font-size: 14px;
    color: #64748b;
}