/* ----------------------------------------------------
   BAJAJ SOLAR - CENTRAL STYLESHEET (VANILLA CSS)
---------------------------------------------------- */

/* --- Custom Properties & Theme Setup --- */
:root {
    /* Color Palette tokens - Primary Theme (Light Setup default overrides) */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Transitions */
    --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);
    
    /* Layout constants */
    --container-width: 1200px;
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    --header-height: 80px;
}

/* Light Theme Variables */
body.light-theme {
    --bg-main: #f8fafc;
    --card-bg: #ffffff;
    --bg-opacity: rgba(255, 255, 255, 0.7);
    --text-main: #0f172a;
    --text-muted: #475569;
    --border: rgba(15, 23, 42, 0.08);
    --primary: #0f172a;
    --primary-glow: rgba(15, 23, 42, 0.1);
    --accent: #ff7600; /* Warm Solar Orange */
    --accent-glow: rgba(255, 118, 0, 0.15);
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.04), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.06), 0 10px 10px -5px rgba(0, 0, 0, 0.03);
    --header-bg: rgba(248, 250, 252, 0.8);
    --badge-bg: rgba(255, 118, 0, 0.1);
}

/* Dark Theme Variables (Active by Default) */
body.dark-theme {
    --bg-main: #0b0f19; /* Deep Space Slate */
    --card-bg: #131929; /* Card Blue-Grey */
    --bg-opacity: rgba(19, 25, 41, 0.6);
    --text-main: #f1f5f9;
    --text-muted: #94a3b8;
    --border: rgba(255, 255, 255, 0.07);
    --primary: #ffffff;
    --primary-glow: rgba(255, 255, 255, 0.1);
    --accent: #ffa41b; /* Vibrant Gold Orange */
    --accent-glow: rgba(255, 164, 27, 0.25);
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 12px 20px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 25px 35px -5px rgba(0, 0, 0, 0.5), 0 10px 15px -5px rgba(0, 0, 0, 0.4);
    --header-bg: rgba(11, 15, 25, 0.8);
    --badge-bg: rgba(255, 164, 27, 0.12);
}

/* --- Base & Reset Rules --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
}

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

/* --- Layout Utility --- */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

.text-center { text-align: center; }
.w-100 { width: 100%; }

/* --- Badge & Tag Styles --- */
.badge {
    display: inline-block;
    padding: 6px 14px;
    background-color: var(--badge-bg);
    color: var(--accent);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.85rem;
    border-radius: 30px;
    border: 1px solid var(--accent-glow);
    margin-bottom: 20px;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.section-tag {
    display: inline-block;
    color: var(--accent);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.highlight {
    color: var(--accent);
    background: linear-gradient(120deg, var(--accent) 0%, #ffdf6d 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* --- Button Typography --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: var(--border-radius-sm);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 1.5px solid transparent;
}

.btn-primary {
    background-color: var(--accent);
    color: #ffffff;
    box-shadow: 0 4px 14px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    background-color: #ff9100;
    box-shadow: 0 6px 20px var(--accent-glow);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-main);
    border-color: var(--border);
}

.btn-secondary:hover {
    background-color: var(--border);
    transform: translateY(-1px);
}

.btn-lg {
    padding: 14px 32px;
    font-size: 1.05rem;
    border-radius: var(--border-radius-md);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.85rem;
    border-radius: 6px;
}

/* --- Announcement Bar --- */
.announcement-bar {
    background-color: var(--accent);
    color: #ffffff;
    font-size: 0.85rem;
    font-weight: 500;
    padding: 8px 0;
    text-align: center;
}

.announcement-content {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.announcement-link {
    font-weight: 700;
    text-decoration: underline;
}

/* --- Header & Navigation Bar --- */
.header {
    height: var(--header-height);
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--header-bg);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    transition: background-color var(--transition-normal);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-text {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.35rem;
    color: var(--text-main);
    letter-spacing: -0.01em;
}

.logo-text span {
    color: var(--accent);
}

.logo-icon {
    animation: rotate-sun 25s linear infinite;
}

@keyframes rotate-sun {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.nav-menu {
    display: flex;
    gap: 32px;
}

.nav-link {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-muted);
    position: relative;
    padding: 6px 0;
}

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

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.theme-toggle-btn {
    background: none;
    border: 1px solid var(--border);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-main);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.theme-toggle-btn:hover {
    background-color: var(--border);
    border-color: var(--accent);
}

body.dark-theme .sun-icon { display: block; }
body.dark-theme .moon-icon { display: none; }
body.light-theme .sun-icon { display: none; }
body.light-theme .moon-icon { display: block; }

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    padding: 4px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--text-main);
    transition: var(--transition-fast);
}

/* --- Mobile Drawer Menu --- */
.mobile-drawer {
    position: fixed;
    top: 0;
    right: -320px;
    width: 300px;
    height: 100vh;
    background-color: var(--card-bg);
    border-left: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    z-index: 200;
    display: flex;
    flex-direction: column;
    padding: 30px 24px;
    transition: right var(--transition-normal);
}

.mobile-drawer.open {
    right: 0;
}

.drawer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.drawer-close {
    font-size: 2.2rem;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    line-height: 0.5;
}

.drawer-close:hover {
    color: var(--accent);
}

.drawer-menu {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.drawer-link {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 500;
    color: var(--text-muted);
}

.drawer-link:hover {
    color: var(--accent);
    padding-left: 6px;
}

.drawer-footer {
    margin-top: auto;
}

.drawer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(11, 15, 25, 0.6);
    backdrop-filter: blur(4px);
    z-index: 199;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

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

/* --- Hero Section --- */
.hero-section {
    padding: 80px 0 100px;
    position: relative;
    overflow: hidden;
}

.hero-bg-glow {
    position: absolute;
    top: -20%;
    right: -10%;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    filter: blur(50px);
    z-index: -1;
    pointer-events: none;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    line-height: 1.15;
    margin-bottom: 24px;
}

.hero-content p {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 540px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 50px;
}

.hero-trust {
    display: flex;
    align-items: center;
    gap: 24px;
}

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

.trust-num {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 4px;
}

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

.trust-divider {
    width: 1px;
    height: 35px;
    background-color: var(--border);
}

.hero-visual {
    position: relative;
}

.solar-illustration-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-lg);
    padding: 30px;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.solar-grid-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 130%;
    height: 130%;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 60%);
    z-index: 0;
    pointer-events: none;
}

.hero-svg {
    position: relative;
    z-index: 1;
}

/* Hero animations */
.sun-circle {
    transform-origin: 120px 80px;
    animation: rotate-sun 60s linear infinite;
}

.sun-pulse {
    transform-origin: 120px 80px;
    animation: pulse 3s ease-in-out infinite alternate;
}

@keyframes pulse {
    0% { transform: scale(0.9); opacity: 0.15; }
    100% { transform: scale(1.1); opacity: 0.35; }
}

.battery-charge {
    animation: battery-flow 4s infinite alternate;
}

@keyframes battery-flow {
    0% { fill: var(--border); opacity: 0.2; }
    30% { fill: var(--accent); opacity: 0.4; }
    60% { fill: var(--accent); opacity: 0.7; }
    100% { fill: var(--accent); opacity: 1; }
}

/* --- Stats Counter Section --- */
.stats-section {
    padding: 40px 0;
    background-color: var(--card-bg);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    position: relative;
    z-index: 10;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.stat-card {
    display: flex;
    align-items: center;
    gap: 20px;
}

.stat-icon-wrapper {
    background-color: var(--bg-main);
    color: var(--accent);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    flex-shrink: 0;
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1.1;
    color: var(--text-main);
}

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

/* --- About Us Section --- */
.about-section {
    padding: 100px 0;
}

.about-container {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    gap: 80px;
    align-items: center;
}

.about-visual {
    position: relative;
}

.about-card-glow {
    position: absolute;
    bottom: -10%;
    left: -10%;
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    filter: blur(40px);
    z-index: -1;
}

.about-img-frame {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: visible;
}

.about-accent-box {
    position: absolute;
    bottom: 24px;
    left: -24px;
    background-color: var(--accent);
    color: #ffffff;
    padding: 20px 24px;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    z-index: 10;
    max-width: 240px;
}

.accent-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.accent-body {
    font-size: 0.8rem;
    opacity: 0.9;
}

.about-svg {
    box-shadow: var(--shadow-md);
    border-radius: var(--border-radius-lg);
    background-color: var(--card-bg);
}

.about-content h2 {
    font-size: 2.75rem;
    margin-bottom: 24px;
    line-height: 1.2;
}

.lead-text {
    font-size: 1.1rem;
    color: var(--text-main);
    font-weight: 500;
    margin-bottom: 20px;
}

.about-content p {
    color: var(--text-muted);
    margin-bottom: 24px;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-top: 30px;
}

.about-feat-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.feat-icon {
    color: var(--accent);
    flex-shrink: 0;
}

.about-feat-item span {
    font-weight: 600;
    font-size: 0.95rem;
}

/* --- Products Catalog Section --- */
.products-section {
    padding: 100px 0;
    background-color: var(--bg-opacity);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.section-header {
    max-width: 600px;
    margin: 0 auto 50px;
}

.section-header h2 {
    font-size: 2.75rem;
    margin-bottom: 16px;
}

.section-desc {
    color: var(--text-muted);
}

/* Category Filter Tabs */
.filter-wrapper {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.filter-btn {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    color: var(--text-muted);
    padding: 10px 20px;
    border-radius: 30px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.filter-btn:hover {
    color: var(--text-main);
    border-color: var(--text-muted);
}

.filter-btn.active {
    background-color: var(--accent);
    color: #ffffff;
    border-color: var(--accent);
    box-shadow: 0 4px 12px var(--accent-glow);
}

/* Products Grid Layout */
.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

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

.product-card:hover {
    transform: translateY(-6px);
    border-color: var(--accent-glow);
    box-shadow: var(--shadow-md);
}

.prod-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background-color: var(--accent);
    color: #ffffff;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 20px;
    z-index: 2;
    text-transform: uppercase;
}

.prod-visual {
    background-color: var(--bg-main);
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid var(--border);
    padding: 20px;
    position: relative;
}

.prod-svg {
    transition: transform var(--transition-normal);
}

.product-card:hover .prod-svg {
    transform: scale(1.1);
}

.prod-info {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.prod-cat-label {
    font-size: 0.8rem;
    color: var(--accent);
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: 8px;
    letter-spacing: 0.05em;
}

.prod-info h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    line-height: 1.3;
}

.prod-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 24px;
    flex-grow: 1;
}

.prod-action {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    border-top: 1px solid var(--border);
    padding-top: 16px;
}

.prod-meta {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* --- Solar Estimator Calculator --- */
.calculator-section {
    padding: 100px 0;
    position: relative;
}

.calculator-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.calc-content h2 {
    font-size: 2.75rem;
    margin-bottom: 20px;
}

.calc-content p {
    color: var(--text-muted);
    margin-bottom: 40px;
}

.calc-inputs-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-md);
    padding: 36px;
    box-shadow: var(--shadow-sm);
}

.calc-input-group {
    margin-bottom: 30px;
}

.calc-input-group:last-child {
    margin-bottom: 0;
}

.calc-input-group label {
    display: block;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 12px;
}

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

.slider-val {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.3rem;
    color: var(--accent);
}

/* Premium Range Input Styling */
.slider-input {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--border);
    outline: none;
}

.slider-input::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    box-shadow: 0 0 10px var(--accent-glow);
    transition: transform var(--transition-fast);
}

.slider-input::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

.slider-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 8px;
}

/* Radio Tab Options */
.radio-toggle-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background-color: var(--bg-main);
    border: 1px solid var(--border);
    padding: 6px;
    border-radius: 8px;
    gap: 6px;
}

.radio-toggle-lbl input[type="radio"] {
    display: none;
}

.toggle-btn-txt {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 40px;
    border-radius: 6px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.radio-toggle-lbl input[type="radio"]:checked + .toggle-btn-txt {
    background-color: var(--card-bg);
    color: var(--text-main);
    box-shadow: var(--shadow-sm);
}

body.dark-theme .radio-toggle-lbl input[type="radio"]:checked + .toggle-btn-txt {
    border: 1px solid var(--border);
}

/* Select input styling */
.select-input {
    width: 100%;
    height: 48px;
    background-color: var(--bg-main);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-sm);
    color: var(--text-main);
    padding: 0 16px;
    font-family: var(--font-body);
    font-size: 0.9rem;
    outline: none;
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.select-input:focus {
    border-color: var(--accent);
}

/* Calculator Results Side */
.calc-results {
    position: relative;
}

.results-grid-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 110%;
    height: 110%;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 60%);
    z-index: 0;
    pointer-events: none;
}

.results-card {
    position: relative;
    z-index: 1;
    background-color: var(--card-bg);
    border: 1.5px solid var(--accent-glow);
    border-radius: var(--border-radius-lg);
    padding: 44px;
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
}

.results-card h3 {
    font-size: 1.75rem;
    margin-bottom: 24px;
    text-align: center;
}

.result-highlight-box {
    background-color: var(--bg-opacity);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-md);
    padding: 24px;
    text-align: center;
    margin-bottom: 30px;
}

.res-lbl {
    display: block;
    font-size: 0.85rem;
    text-transform: uppercase;
    color: var(--text-muted);
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: 0.05em;
}

.res-val {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 2.5rem;
    color: var(--accent);
    line-height: 1;
}

.result-details-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 36px;
}

.res-detail-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.95rem;
}

.res-detail-lbl {
    color: var(--text-muted);
}

.res-detail-val {
    font-weight: 700;
}

.res-detail-val.accent-val {
    color: var(--accent);
}

.calc-cta-wrapper {
    border-top: 1px solid var(--border);
    padding-top: 24px;
}

.calc-disclaimer {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 20px;
    text-align: center;
    line-height: 1.4;
}

/* --- Benefits grid --- */
.benefits-section {
    padding: 100px 0;
    background-color: var(--bg-opacity);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.benefit-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-md);
    padding: 30px;
    transition: transform var(--transition-normal);
}

.benefit-card:hover {
    transform: translateY(-4px);
}

.benefit-icon {
    color: var(--accent);
    margin-bottom: 20px;
}

.benefit-card h3 {
    font-size: 1.15rem;
    margin-bottom: 12px;
}

.benefit-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* --- Contact Us Section --- */
.contact-section {
    padding: 100px 0;
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
}

.contact-info-panel h2 {
    font-size: 2.75rem;
    margin-bottom: 16px;
}

.contact-lead {
    color: var(--text-muted);
    font-size: 1.05rem;
    margin-bottom: 40px;
}

.contact-details-box {
    display: flex;
    flex-direction: column;
    gap: 36px;
}

.contact-detail-row {
    display: flex;
    gap: 20px;
}

.detail-icon-circle {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    color: var(--accent);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.detail-text-col h4 {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.detail-text-col p {
    font-size: 1.05rem;
    font-weight: 600;
}

.landmark-text {
    display: block;
    margin-top: 4px;
    font-size: 0.85rem;
    color: var(--accent);
    font-weight: 500;
}

.maps-directions-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--accent);
    font-weight: 600;
    margin-top: 6px;
    text-decoration: underline;
    transition: color var(--transition-fast);
}

.maps-directions-link:hover {
    color: var(--text-main);
}


.contact-link-val {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--text-main);
    display: inline-block;
}

.contact-link-val:hover {
    color: var(--accent);
}

.contact-sub-lbl {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* Callback Survey Form Card */
.contact-form-panel {
    display: flex;
    justify-content: flex-end;
}

.form-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-lg);
    padding: 40px;
    width: 100%;
    max-width: 520px;
    box-shadow: var(--shadow-md);
}

.form-card h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.form-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 30px;
}

.form-row {
    margin-bottom: 20px;
}

.form-row.split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

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

.form-group label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-control {
    width: 100%;
    background-color: var(--bg-main);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-sm);
    color: var(--text-main);
    padding: 12px 16px;
    font-family: var(--font-body);
    font-size: 0.9rem;
    outline: none;
    transition: border-color var(--transition-fast);
}

.form-control:focus {
    border-color: var(--accent);
}

textarea.form-control {
    resize: vertical;
}

.error-msg {
    color: #ef4444;
    font-size: 0.75rem;
    margin-top: 4px;
    font-weight: 500;
    display: none;
}

.form-group.has-error .form-control {
    border-color: #ef4444;
}

.form-group.has-error .error-msg {
    display: block;
}

.form-submit-btn {
    margin-top: 10px;
    position: relative;
}

/* Spinner for loading state */
.submit-spinner {
    display: none;
    position: absolute;
    animation: rotate-sun 1s linear infinite;
}

.form-submit-btn.loading span {
    opacity: 0;
}

.form-submit-btn.loading .submit-spinner {
    display: block;
}

/* --- Footer Area --- */
.footer-bottom {
    background-color: var(--card-bg);
    border-top: 1px solid var(--border);
    padding: 60px 0;
    margin-top: 60px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 60px;
}

.footer-logo-col p {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 16px;
    max-width: 280px;
}

.footer-links-col {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links-col h4 {
    font-size: 1rem;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent);
}

.footer-links-col a {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-links-col a:hover {
    color: var(--text-main);
}

.foot-txt-detail {
    font-size: 0.8rem;
    color: var(--text-muted);
    display: block;
}

/* --- Specifications details Modal Pop-up --- */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 300;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

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

.modal-dialog {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    width: 90%;
    max-width: 600px;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 302;
    transform: scale(0.9);
    transition: transform var(--transition-normal);
    overflow: hidden;
}

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

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 1.35rem;
}

.modal-close {
    font-size: 2rem;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    line-height: 0.5;
}

.modal-close:hover {
    color: var(--accent);
}

.modal-body {
    padding: 24px;
    max-height: 70vh;
    overflow-y: auto;
}

/* Modal specification tables */
.spec-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 16px;
}

.spec-table tr {
    border-bottom: 1px solid var(--border);
}

.spec-table td {
    padding: 12px 8px;
    font-size: 0.9rem;
}

.spec-table td:first-child {
    font-weight: 600;
    color: var(--text-muted);
    width: 40%;
}

.spec-table td:last-child {
    font-weight: 500;
}

.spec-bullets {
    margin-top: 16px;
    padding-left: 20px;
}

.spec-bullets li {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.modal-footer {
    padding: 20px 24px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(11, 15, 25, 0.7);
    backdrop-filter: blur(5px);
    z-index: 301;
}

/* --- Floating Toasts --- */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 400;
    display: flex;
    flex-direction: column;
    gap: 12px;
    pointer-events: none;
}

.toast {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-left: 4px solid var(--accent);
    color: var(--text-main);
    padding: 16px 24px;
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-md);
    font-size: 0.85rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 280px;
    max-width: 380px;
    transform: translateY(20px);
    opacity: 0;
    animation: toast-entrance 0.3s forwards, toast-exit 0.3s 3.7s forwards;
    pointer-events: auto;
}

.toast-success {
    border-left-color: #10b981;
}

.toast-error {
    border-left-color: #ef4444;
}

@keyframes toast-entrance {
    to { transform: translateY(0); opacity: 1; }
}

@keyframes toast-exit {
    to { transform: translateY(-20px); opacity: 0; }
}


/* ----------------------------------------------------
   RESPONSIVE DESIGN (MEDIA QUERIES)
---------------------------------------------------- */

@media (max-width: 1024px) {
    :root {
        --header-height: 70px;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 50px;
        text-align: center;
    }
    
    .hero-content p {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-trust {
        justify-content: center;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
    
    .about-container {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .about-visual {
        max-width: 480px;
        margin: 0 auto;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .calculator-container {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .contact-form-panel {
        justify-content: center;
    }
    
    .form-card {
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .nav-menu, .nav-actions .nav-cta {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .calc-results .results-card {
        padding: 24px;
    }
    
    .res-val {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row.split {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .about-accent-box {
        left: 12px;
        bottom: -12px;
    }
    
    .theme-toggle-btn {
        width: 36px;
        height: 36px;
    }
}