/* ==========================================================================
   ARSH INTERIORS - ADVANCED MASTER STYLESHEET
   ========================================================================== */

/* 1. IMPORTS & VARIABLES */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Playfair+Display:ital,wght@0,600;1,600;1,700&display=swap');

:root {
    /* Brand Colors (Updated to specific requirements) */
    --primary: #ff6b6b;
    --primary-hover: #ff5c5c;
    --primary-light: rgba(255, 107, 107, 0.08);
    
    /* Neutral Palette */
    --text-dark: #111111;
    --text-body: #444444;
    --text-muted: #777777;
    --bg-white: #ffffff;
    --bg-light: #f8f9fa;
    --bg-dark: #1a1a1a;
    --border-color: #e5e7eb;
    
    /* Typography */
    --font-sans: 'Plus Jakarta Sans', sans-serif;
    --font-serif: 'Playfair Display', serif;
    
    /* Utilities */
    --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.12);
    --radius-md: 12px;
    --radius-lg: 20px;
    --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* 2. BASE RESET & TYPOGRAPHY */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    overflow-x: hidden; /* Prevents horizontal scrollbar during animation */
}

body {
    font-family: var(--font-sans);
    color: var(--text-body);
    background-color: var(--bg-white);
    line-height: 1.7;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--text-dark);
    font-weight: 700;
    line-height: 1.2;
}

.serif { font-family: var(--font-serif); }
.highlight { color: var(--primary); font-style: italic; }
.text-center { text-align: center; }
.text-white { color: #ffffff; }

a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }

/* 3. LAYOUT UTILITIES */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}
.section-padding { padding: 100px 0; }
.bg-light { background-color: var(--bg-light); }
.bg-dark { background-color: var(--bg-dark); }
.mt-40 { margin-top: 40px; }
.max-w-800 { max-width: 800px; margin: 0 auto; }

/* 4. BUTTONS */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
    gap: 10px;
}
.btn-primary {
    background-color: var(--primary);
    color: var(--bg-white);
    box-shadow: 0 8px 25px rgba(255, 107, 107, 0.3);
}
.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(255, 92, 92, 0.4);
}
.btn-outline {
    background-color: transparent;
    border-color: var(--text-dark);
    color: var(--text-dark);
}
.btn-outline:hover {
    background-color: var(--text-dark);
    color: var(--bg-white);
}
.btn-large { padding: 16px 36px; font-size: 1.1rem; }
.btn-full { width: 100%; }

/* 5. HEADER & NAVIGATION */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
    padding: 15px 0;
}
.site-header.scrolled { padding: 10px 0; box-shadow: var(--shadow-sm); }

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-dark);
}
.logo-icon { color: var(--text-dark); font-size: 1.6rem; }

.desktop-nav { display: flex; gap: 30px; }
.desktop-nav .nav-link {
    font-weight: 600;
    color: var(--text-body);
    font-size: 1rem;
    position: relative;
}
.desktop-nav .nav-link:hover, .desktop-nav .nav-link.active {
    color: var(--primary);
}
.desktop-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0%;
    height: 2px;
    background-color: var(--primary);
    transition: var(--transition);
}
.desktop-nav .nav-link:hover::after, .desktop-nav .nav-link.active::after {
    width: 100%;
}

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

/* 6. PAGE TRANSITION LOGIC (Left/Right Slide) */
#smooth-wrapper {
    width: 100%;
    position: relative;
    overflow: hidden;
    min-height: 100vh;
    padding-top: 80px; /* Offset for fixed header */
}

.page-content {
    width: 100%;
    opacity: 1;
    transform: translateX(0);
    transition: transform 0.7s cubic-bezier(0.25, 1, 0.5, 1), opacity 0.5s ease;
}

/* Slide out to the left (when clicking a link) */
.page-exit-left {
    transform: translateX(-100%);
    opacity: 0;
}

/* Slide in from the right (Initial state for new page) */
.page-enter-right {
    transform: translateX(100%);
    opacity: 0;
}

/* 7. HERO SECTION */
.hero-section {
    position: relative;
    padding: 80px 0 120px;
    background: linear-gradient(180deg, var(--bg-light) 0%, var(--bg-white) 100%);
}
.hero-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 60px;
    text-align: center;
}
.hero-subtitle {
    display: inline-block;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--primary);
    margin-bottom: 20px;
    font-size: 0.9rem;
}
.hero-title {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    margin-bottom: 24px;
}
.hero-desc {
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto 40px;
    color: var(--text-muted);
}
.hero-actions { display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; }

/* Trust Badges */
.trust-badges-grid {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
    margin-top: 20px;
}
.trust-badge {
    background: var(--bg-white);
    padding: 16px 24px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: 12px;
    border: 1px solid var(--border-color);
    font-weight: 600;
    color: var(--text-dark);
}
.trust-badge i { color: var(--primary); font-size: 1.2rem; }

/* 8. SERVICES OVERVIEW GRID */
.section-header { margin-bottom: 60px; }
.section-header h2 { font-size: 2.8rem; margin-bottom: 15px; }
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}
.service-card {
    background: var(--bg-white);
    padding: 40px 30px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}
.card-icon {
    width: 70px;
    height: 70px;
    background: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 24px;
}
.service-card h3 { font-size: 1.5rem; margin-bottom: 16px; }
.service-card p { color: var(--text-muted); margin-bottom: 24px; }
.card-link { font-weight: 700; color: var(--primary); display: inline-flex; align-items: center; gap: 8px; }
.card-link:hover { gap: 12px; color: var(--primary-hover); }

/* 9. ADVANCED FORM (COST CALCULATOR) */
.estimator-wrapper {
    background: var(--bg-white);
    max-width: 900px;
    margin: 0 auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    padding: 50px;
}
.estimator-header { text-align: center; margin-bottom: 40px; }
.estimator-header h2 { font-size: 2.4rem; margin-bottom: 10px; }
.form-step { display: none; animation: fadeIn 0.5s ease forwards; }
.form-step.active { display: block; }

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

.form-step h3 { margin-bottom: 24px; font-size: 1.4rem; color: var(--text-dark); border-bottom: 2px solid var(--bg-light); padding-bottom: 10px; }

.input-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 30px; }
.full-width { grid-column: 1 / -1; }
.input-group label { display: block; font-weight: 600; font-size: 0.9rem; margin-bottom: 8px; color: var(--text-body); }
.input-icon-wrapper { position: relative; }
.input-icon-wrapper i { position: absolute; left: 16px; top: 50%; transform: translateY(-50%); color: var(--text-muted); font-size: 1.1rem; }
.input-icon-wrapper input, .input-icon-wrapper select {
    width: 100%;
    padding: 16px 16px 16px 45px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-light);
    font-family: var(--font-sans);
    font-size: 1rem;
    color: var(--text-dark);
    transition: var(--transition);
    appearance: none;
}
.input-icon-wrapper input:focus, .input-icon-wrapper select:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--bg-white);
}

/* Visual Checkbox Cards for Form */
.visual-selection-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 30px; }
.custom-checkbox-card { cursor: pointer; display: block; }
.hidden-cb { display: none; }
.card-content {
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px 15px;
    text-align: center;
    transition: var(--transition);
    background: var(--bg-light);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}
.card-content i { font-size: 2.5rem; color: var(--text-muted); transition: var(--transition); }
.card-content span { font-weight: 700; color: var(--text-dark); }
.hidden-cb:checked + .card-content {
    border-color: var(--primary);
    background: var(--primary-light);
    transform: translateY(-3px);
    box-shadow: var(--shadow-sm);
}
.hidden-cb:checked + .card-content i { color: var(--primary); }

.form-actions { display: flex; gap: 15px; }
.form-actions .btn { flex: 1; }

/* 10. PRICING TRANSPARENCY SECTION */
.rate-highlight-box {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 40px;
    border-radius: var(--radius-lg);
    position: relative;
    text-align: left;
}
.highlight-icon { font-size: 2.5rem; color: var(--primary); margin-bottom: 20px; }
.rate-highlight-box h4 { color: #ffffff; font-size: 1.5rem; margin-bottom: 15px; }
.rate-highlight-box p { color: #cccccc; font-size: 1.1rem; }
.rate-highlight-box strong { color: var(--primary); font-size: 1.3rem; }

/* 11. FOOTER */
.site-footer {
    background: var(--text-dark);
    color: #ffffff;
    padding: 80px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}
.footer-logo { font-size: 1.8rem; font-weight: 800; color: #ffffff; display: flex; align-items: center; gap: 10px; margin-bottom: 20px; }
.brand-col p { color: #aaaaaa; max-width: 400px; }
.footer-col h4 { color: #ffffff; font-size: 1.2rem; margin-bottom: 24px; position: relative; padding-bottom: 10px; }
.footer-col h4::after { content: ''; position: absolute; left: 0; bottom: 0; width: 40px; height: 2px; background: var(--primary); }
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul li a { color: #aaaaaa; transition: var(--transition); display: inline-flex; align-items: center; gap: 10px; }
.footer-col ul li a:hover { color: var(--primary); padding-left: 5px; }
.footer-col ul li i { color: var(--primary); }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.1); padding: 24px 0; color: #777777; font-size: 0.9rem; }

/* 12. RESPONSIVE DESIGN (TABLET & MOBILE) */
@media (max-width: 992px) {
    .hero-title { font-size: 3rem; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .estimator-wrapper { padding: 40px 30px; }
}

@media (max-width: 768px) {
    .desktop-nav, .header-cta { display: none; }
    .mobile-menu-btn { display: block; }
    
    .hero-section { padding: 40px 0 80px; }
    .hero-title { font-size: 2.2rem; }
    .hero-actions { flex-direction: column; }
    .btn-large { width: 100%; }
    
    .input-grid, .visual-selection-grid { grid-template-columns: 1fr; }
    .estimator-wrapper { padding: 30px 20px; }
    .form-actions { flex-direction: column-reverse; }
    
    .footer-grid { grid-template-columns: 1fr; gap: 40px; }
}