/* ==========================================================================
   IzzyGas Website Stylesheet
   Theme: Logo Colors (Deep Indigo, Flame Red, Gold Yellow)
   ========================================================================== */

/* --- CSS Variables & Design Tokens --- */
:root {
    /* Color Palette */
    --logo-indigo: #2e1e5c;
    --logo-indigo-hsl: 256, 51%, 24%;
    --flame-red: #a8001e;
    --flame-red-hsl: 349, 100%, 33%;
    --flame-yellow: #ffd700;
    --flame-yellow-hsl: 51, 100%, 50%;
    
    /* Semantic Colors */
    --bg-dark: #0b071a;          /* Rich deep indigo-black */
    --bg-card: rgba(46, 30, 92, 0.15); /* Glassmorphic card fill */
    --bg-card-hover: rgba(46, 30, 92, 0.3);
    --border-glass: rgba(255, 255, 255, 0.08);
    --border-accent: rgba(168, 0, 30, 0.25);
    --border-accent-focus: rgba(255, 215, 0, 0.4);
    
    /* Text Colors */
    --text-white: #ffffff;
    --text-light: #f1f0f5;
    --text-muted: #9f9aa8;
    --text-dark: #121016;

    /* Gradients */
    --grad-hero: radial-gradient(circle at 70% 30%, rgba(168, 0, 30, 0.15) 0%, rgba(46, 30, 92, 0.1) 40%, transparent 70%);
    --grad-button: linear-gradient(135deg, var(--flame-red) 0%, #d81b3a 100%);
    --grad-accent: linear-gradient(90deg, var(--flame-red) 0%, var(--flame-yellow) 100%);
    --grad-card-glow: radial-gradient(circle at top right, rgba(255, 215, 0, 0.15), transparent 60%);

    /* Typography */
    --font-primary: 'Outfit', sans-serif;
    --font-secondary: 'Plus Jakarta Sans', sans-serif;
    
    /* Transitions */
    --trans-fast: 0.2s ease;
    --trans-medium: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    
    /* Layout & Spacing */
    --container-width: 1200px;
    --header-height: 80px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    scroll-padding-top: calc(var(--header-height) + 16px);
}

body {
    background-color: var(--bg-dark);
    color: var(--text-light);
    font-family: var(--font-secondary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

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

ul {
    list-style: none;
}

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

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
    background: none;
    border: none;
    color: inherit;
}

button {
    cursor: pointer;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 3px solid var(--flame-yellow);
    outline-offset: 3px;
}

/* --- Scrollbar styling --- */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
    background: var(--logo-indigo);
    border-radius: 5px;
    border: 2px solid var(--bg-dark);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--flame-red);
}

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

.highlight-text {
    background: var(--grad-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.d-none {
    display: none !important;
}

/* --- Watermark Backgrounds --- */
.bg-watermark {
    position: absolute;
    background-image: url('Logo.png');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    filter: invert(1) hue-rotate(180deg) opacity(0.05);
    mix-blend-mode: screen;
    pointer-events: none;
    z-index: 0;
}

.hero-watermark {
    top: 5%;
    left: -120px;
    width: 650px;
    height: 650px;
    transform: rotate(-12deg);
}

.contact-watermark {
    bottom: -150px;
    right: -150px;
    width: 600px;
    height: 600px;
    transform: rotate(15deg);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 30px;
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-primary {
    background: var(--grad-button);
    color: var(--text-white);
    box-shadow: 0 4px 15px rgba(168, 0, 30, 0.3);
}

.btn-primary::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #d81b3a 0%, var(--flame-red) 100%);
    opacity: 0;
    z-index: -1;
    transition: opacity var(--trans-fast);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(168, 0, 30, 0.5), 0 0 10px rgba(255, 215, 0, 0.2);
}

.btn-primary:hover::after {
    opacity: 1;
}

.btn-outline {
    border: 2px solid var(--logo-indigo);
    color: var(--text-white);
    background: rgba(46, 30, 92, 0.1);
}

.btn-outline:hover {
    border-color: var(--flame-yellow);
    background: rgba(46, 30, 92, 0.4);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(46, 30, 92, 0.3);
}

.btn-block {
    display: flex;
    width: 100%;
}

/* --- Section Headers --- */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tagline {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 0.85rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--flame-yellow);
    margin-bottom: 8px;
    display: block;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 12px;
}

.section-underline {
    width: 60px;
    height: 4px;
    background: var(--grad-accent);
    margin: 0 auto;
    border-radius: 2px;
}

/* --- Header & Navigation --- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: rgba(11, 7, 26, 0.75);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-glass);
    z-index: 100;
    transition: all 0.3s ease;
}

.site-header.scrolled {
    height: 70px;
    background: rgba(11, 7, 26, 0.95);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo-link {
    display: flex;
    align-items: center;
    background: #ffffff;
    padding: 8px 24px;
    border-radius: 16px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.logo-link:hover {
    transform: translateY(-1px) scale(1.03);
    box-shadow: 0 6px 20px rgba(255, 215, 0, 0.25);
}

.logo-img {
    height: 48px;
    width: auto;
    transition: all var(--trans-fast);
}

.site-header.scrolled .logo-link {
    padding: 6px 18px;
    border-radius: 12px;
}

.site-header.scrolled .logo-img {
    height: 38px;
}

.main-nav {
    display: flex;
}

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

.nav-link {
    font-family: var(--font-primary);
    font-weight: 500;
    font-size: 1.05rem;
    color: var(--text-muted);
    padding: 8px 0;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--grad-accent);
    transition: width 0.3s ease;
}

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

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

.menu-toggle {
    display: none;
    color: var(--text-white);
    font-size: 1.5rem;
}

.phone-cta {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    padding: 10px 20px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-white);
}

.phone-cta:hover {
    border-color: var(--flame-red);
    box-shadow: 0 0 15px rgba(168, 0, 30, 0.3);
    transform: scale(1.03);
}

/* --- Hero Section --- */
.hero-section {
    position: relative;
    padding: calc(var(--header-height) + 60px) 0 80px 0;
    min-height: 90vh;
    display: flex;
    align-items: center;
    background: var(--grad-hero);
    overflow: hidden;
}

.hero-glow {
    position: absolute;
    width: 400px;
    height: 400px;
    background: var(--flame-red);
    filter: blur(150px);
    opacity: 0.15;
    top: 20%;
    right: 10%;
    pointer-events: none;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.badge-gas-safe {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(255, 215, 0, 0.08);
    border: 1px solid rgba(255, 215, 0, 0.3);
    border-radius: 20px;
    color: var(--flame-yellow);
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.85rem;
    margin-bottom: 24px;
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.05);
    animation: pulseGlow 3s infinite ease-in-out;
}

@keyframes pulseGlow {
    0%, 100% { box-shadow: 0 0 15px rgba(255, 215, 0, 0.05); border-color: rgba(255, 215, 0, 0.3); }
    50% { box-shadow: 0 0 25px rgba(255, 215, 0, 0.15); border-color: rgba(255, 215, 0, 0.6); }
}

.hero-title {
    font-size: 3.8rem;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 600px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-features {
    display: flex;
    gap: 32px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-primary);
    font-weight: 500;
    color: var(--text-light);
}

.feature-item i {
    color: var(--flame-red);
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
}

.visual-card {
    position: relative;
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid var(--border-glass);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    transition: transform var(--trans-medium);
}

.visual-card:hover {
    transform: translateY(-8px) scale(1.02);
}

.visual-img {
    width: 100%;
    height: 480px;
    object-fit: cover;
    filter: brightness(0.9);
}

.visual-badge {
    position: absolute;
    bottom: 24px;
    left: 24px;
    right: 24px;
    background: rgba(11, 7, 26, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-accent);
    padding: 16px 24px;
    border-radius: 16px;
    overflow: hidden;
}

.flame-glow-mini {
    position: absolute;
    width: 60px;
    height: 60px;
    background: var(--flame-red);
    filter: blur(20px);
    opacity: 0.4;
    right: -20px;
    bottom: -20px;
}

.badge-title {
    display: block;
    font-family: var(--font-primary);
    font-weight: 700;
    color: var(--text-white);
    font-size: 1.1rem;
    margin-bottom: 2px;
}

.badge-desc {
    display: block;
    color: var(--text-muted);
    font-size: 0.85rem;
}

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

.about-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 64px;
    align-items: center;
}

.about-image-wrapper {
    position: relative;
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid var(--border-glass);
}

.about-img {
    width: 100%;
    height: 480px;
    object-fit: cover;
}

.about-overlay-card {
    position: absolute;
    bottom: 32px;
    right: 32px;
    background: var(--logo-indigo);
    border: 1px solid rgba(255, 215, 0, 0.3);
    padding: 24px;
    border-radius: 16px;
    max-width: 220px;
    text-align: center;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
}

.overlay-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--flame-yellow);
    font-family: var(--font-primary);
    line-height: 1;
    margin-bottom: 4px;
}

.overlay-text {
    font-size: 0.85rem;
    color: var(--text-white);
    font-weight: 600;
}

.about-subtitle {
    font-size: 1.6rem;
    margin-bottom: 16px;
    color: var(--text-white);
}

.about-text {
    color: var(--text-muted);
    margin-bottom: 24px;
    font-size: 1.05rem;
}

.qualities-list {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.quality-card {
    display: flex;
    gap: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    padding: 20px;
    border-radius: 16px;
    transition: all 0.3s ease;
}

.quality-card:hover {
    border-color: var(--border-accent);
    transform: translateX(4px);
    background: var(--bg-card-hover);
}

.quality-icon {
    width: 48px;
    height: 48px;
    background: rgba(168, 0, 30, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--flame-red);
    flex-shrink: 0;
}

.quality-card:hover .quality-icon {
    background: var(--flame-red);
    color: var(--text-white);
}

.quality-info h4 {
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.quality-info p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* --- Services Section --- */
.services-section {
    padding: 100px 0;
    background: radial-gradient(circle at 10% 70%, rgba(46, 30, 92, 0.08) 0%, transparent 60%);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 32px;
    margin-bottom: 80px;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: 24px;
    padding: 40px;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--grad-card-glow);
    opacity: 0;
    transition: opacity var(--trans-fast);
    pointer-events: none;
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--border-accent);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

.service-card:hover::before {
    opacity: 1;
}

.service-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: rgba(46, 30, 92, 0.4);
    border: 1px solid rgba(255, 215, 0, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--flame-yellow);
    margin-bottom: 24px;
    transition: all 0.3s ease;
}

.service-card:hover .service-icon {
    background: var(--flame-red);
    color: var(--text-white);
    border-color: var(--flame-red);
    transform: scale(1.05);
}

.service-title {
    font-size: 1.4rem;
    margin-bottom: 12px;
}

.service-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 24px;
}

.service-bullets {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.service-bullets li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    color: var(--text-light);
}

.service-bullets li i {
    width: 16px;
    height: 16px;
    color: var(--flame-red);
}

/* --- Estimator Widget --- */
.estimator-container {
    background: linear-gradient(135deg, rgba(20, 15, 41, 0.8) 0%, rgba(46, 30, 92, 0.2) 100%);
    border: 1px solid var(--border-glass);
    border-radius: 24px;
    padding: 48px;
    margin-top: 80px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

.estimator-header {
    text-align: center;
    margin-bottom: 40px;
}

.estimator-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: rgba(168, 0, 30, 0.15);
    border: 1px solid rgba(168, 0, 30, 0.4);
    border-radius: 20px;
    color: var(--flame-red);
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 0.8rem;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.estimator-title {
    font-size: 2rem;
    margin-bottom: 8px;
}

.estimator-subtitle {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.estimator-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
    align-items: center;
}

.estimator-field {
    margin-bottom: 28px;
}

.field-label {
    display: block;
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-white);
    margin-bottom: 12px;
}

.options-group {
    display: flex;
    gap: 12px;
}

.option-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 16px 12px;
    border-radius: 16px;
    border: 1px solid var(--border-glass);
    background: rgba(11, 7, 26, 0.4);
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.85rem;
    transition: all 0.3s ease;
}

.option-btn i {
    width: 20px;
    height: 20px;
    color: var(--text-muted);
    transition: color 0.3s ease;
}

.option-btn:hover {
    border-color: var(--flame-red);
    background: rgba(46, 30, 92, 0.2);
}

.option-btn.active {
    border-color: var(--flame-yellow);
    background: var(--logo-indigo);
    color: var(--text-white);
    box-shadow: 0 0 15px rgba(46, 30, 92, 0.5);
}

.option-btn.active i {
    color: var(--flame-yellow);
}

.slider-label-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.slider-value {
    font-family: var(--font-primary);
    font-weight: 700;
    color: var(--flame-yellow);
    font-size: 1.1rem;
}

.range-slider {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.1);
    outline: none;
}

.range-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--flame-red);
    cursor: pointer;
    box-shadow: 0 0 10px rgba(168, 0, 30, 0.5);
    transition: all 0.1s ease;
}

.range-slider::-webkit-slider-thumb:hover {
    background: var(--flame-yellow);
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.8);
    transform: scale(1.1);
}

.estimator-results {
    display: flex;
    justify-content: center;
}

.result-card {
    width: 100%;
    background: rgba(11, 7, 26, 0.6);
    border: 1px solid var(--border-accent);
    border-radius: 20px;
    padding: 32px;
    text-align: center;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
    position: relative;
    overflow: hidden;
}

.result-card::before {
    content: '';
    position: absolute;
    width: 120px;
    height: 120px;
    background: var(--flame-yellow);
    filter: blur(60px);
    opacity: 0.1;
    top: -40px;
    left: -40px;
}

.result-title {
    display: block;
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.result-price {
    font-family: var(--font-primary);
    font-weight: 800;
    font-size: 2.2rem;
    color: var(--flame-yellow);
    margin-bottom: 16px;
    text-shadow: 0 0 20px rgba(255, 215, 0, 0.2);
}

.result-disclaimer {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 28px;
    line-height: 1.5;
}

/* --- Gallery Section --- */
.gallery-section {
    padding: 100px 0;
}

.gallery-filters {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 20px;
    border-radius: 25px;
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.9rem;
    border: 1px solid var(--border-glass);
    background: var(--bg-card);
    transition: all 0.3s ease;
}

.filter-btn:hover {
    border-color: var(--flame-red);
}

.filter-btn.active {
    background: var(--grad-button);
    border-color: var(--flame-red);
    color: var(--text-white);
    box-shadow: 0 4px 15px rgba(168, 0, 30, 0.3);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 24px;
}

.gallery-item {
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-glass);
    transition: transform var(--trans-medium), border-color var(--trans-medium);
}

.gallery-item:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 215, 0, 0.3);
}

.gallery-img-container {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4 / 3;
}

.gallery-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.gallery-item:hover .gallery-img {
    transform: scale(1.05);
}

.gallery-watermark {
    position: absolute;
    top: 12px;
    left: 12px;
    background: #ffffff;
    padding: 4px 10px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.25);
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.gallery-watermark img {
    height: 18px;
    width: auto;
}

.gallery-item:hover .gallery-watermark {
    opacity: 0;
    transform: translateY(-5px);
}

.gallery-hover {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(11, 7, 26, 0.95) 0%, rgba(46, 30, 92, 0.4) 100%);
    opacity: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 24px;
    transition: opacity 0.3s ease;
    z-index: 3;
}

.gallery-item:hover .gallery-hover {
    opacity: 1;
}

.gallery-category {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--flame-yellow);
    font-family: var(--font-primary);
    font-weight: 700;
    margin-bottom: 4px;
}

.gallery-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-white);
}

.view-large-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--flame-red);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.gallery-item:hover .view-large-btn {
    opacity: 1;
    transform: translateY(0);
}

.view-large-btn:hover {
    background: var(--flame-yellow);
    color: var(--text-dark);
}

/* --- Reviews Section --- */
.reviews-section {
    padding: 100px 0;
    background: linear-gradient(180deg, transparent 0%, rgba(46, 30, 92, 0.08) 100%);
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.review-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: 20px;
    padding: 32px;
    transition: all 0.3s ease;
}

.review-card:hover {
    border-color: var(--border-accent);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

.review-stars {
    display: flex;
    gap: 4px;
    margin-bottom: 16px;
}

.star-filled {
    width: 18px;
    height: 18px;
    fill: var(--flame-yellow);
    color: var(--flame-yellow);
}

.review-text {
    font-style: italic;
    color: var(--text-light);
    font-size: 0.95rem;
    margin-bottom: 24px;
}

.review-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author-initials {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--logo-indigo);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-primary);
    font-weight: 700;
    color: var(--flame-yellow);
    font-size: 0.9rem;
}

.author-name {
    display: block;
    font-weight: 600;
    color: var(--text-white);
    font-size: 0.9rem;
}

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

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

.contact-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 64px;
}

.contact-info-panel {
    display: flex;
    flex-direction: column;
}

.contact-subtitle {
    font-size: 1.8rem;
    margin-bottom: 16px;
}

.contact-desc {
    color: var(--text-muted);
    margin-bottom: 32px;
    font-size: 1.05rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 40px;
}

.contact-detail-item {
    display: flex;
    gap: 16px;
    align-items: center;
}

.detail-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(46, 30, 92, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--flame-yellow);
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.contact-detail-item:hover .detail-icon {
    background: var(--flame-red);
    color: var(--text-white);
}

.detail-content {
    display: flex;
    flex-direction: column;
}

.detail-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.detail-value {
    font-family: var(--font-primary);
    font-weight: 600;
    color: var(--text-white);
    font-size: 1.05rem;
}

.gas-safe-badge-container {
    margin-top: auto;
}

.gas-safe-box {
    display: inline-flex;
    flex-direction: column;
    background: var(--logo-indigo);
    border: 1px solid rgba(255, 215, 0, 0.3);
    padding: 16px 24px;
    border-radius: 12px;
    text-align: center;
}

.gas-safe-number {
    font-family: var(--font-primary);
    font-weight: 700;
    color: var(--flame-yellow);
    font-size: 1.1rem;
}

.gas-safe-sub {
    font-size: 0.8rem;
    color: var(--text-light);
}

.contact-form-panel {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: relative;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

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

.form-group label {
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.85rem;
    margin-bottom: 8px;
    color: var(--text-white);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px 16px;
    border-radius: 10px;
    border: 1px solid var(--border-glass);
    background: rgba(11, 7, 26, 0.4);
    font-family: var(--font-secondary);
    color: var(--text-light);
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.2);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--flame-yellow);
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.15);
}

.form-group.error input,
.form-group.error select,
.form-group.error textarea {
    border-color: var(--flame-red);
}

.error-msg {
    color: #ff4d6d;
    font-size: 0.75rem;
    margin-top: 4px;
    display: none;
}

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

.form-privacy-note {
    color: var(--text-muted);
    font-size: 0.82rem;
    line-height: 1.5;
}

.form-privacy-note a,
.footer-bottom a,
.legal-container a {
    color: var(--flame-yellow);
    text-decoration: underline;
    text-underline-offset: 3px;
}

/* Form success banner */
.success-message {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-dark);
    border-radius: 20px;
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 16px;
    padding: 24px;
    z-index: 10;
}

.success-message i {
    width: 56px;
    height: 56px;
    color: var(--flame-yellow);
}

.success-message h4 {
    font-size: 1.4rem;
    color: var(--text-white);
}

.success-message p {
    color: var(--text-muted);
    font-size: 0.95rem;
    max-width: 320px;
}

/* --- Footer --- */
.site-footer {
    background: #06040d;
    border-top: 1px solid var(--border-glass);
    padding: 80px 0 0 0;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr 0.8fr 1.2fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-logo-wrapper {
    display: inline-flex;
    align-items: center;
    background: #ffffff;
    padding: 8px 24px;
    border-radius: 16px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
    margin-bottom: 24px;
    transition: all 0.3s ease;
}

.footer-logo-wrapper:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 215, 0, 0.25);
}

.footer-logo {
    height: 48px;
    width: auto;
}

.footer-brand-desc {
    line-height: 1.6;
}

.site-footer h4 {
    color: var(--text-white);
    font-size: 1.1rem;
    margin-bottom: 24px;
    position: relative;
}

.footer-links ul, .footer-services ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a:hover, .footer-services a:hover {
    color: var(--flame-yellow);
    padding-left: 4px;
}

.footer-contact p {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.footer-icon {
    width: 16px;
    height: 16px;
    color: var(--flame-red);
}

.gas-safe-footer-badge {
    margin-top: 24px;
    display: inline-block;
    padding: 8px 16px;
    background: rgba(255, 215, 0, 0.05);
    border: 1px solid rgba(255, 215, 0, 0.2);
    border-radius: 6px;
}

.safe-badge-txt {
    color: var(--flame-yellow);
    font-family: var(--font-primary);
    font-weight: 700;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.03);
    padding: 24px 0;
}

.footer-bottom-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

/* --- Lightbox --- */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(6, 4, 13, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
}

.lightbox-img {
    max-width: 80%;
    max-height: 75vh;
    border-radius: 12px;
    border: 1px solid var(--border-glass);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    opacity: 0;
    transform: scale(0.95);
    transition: all 0.3s ease;
}

.lightbox.active .lightbox-img {
    opacity: 1;
    transform: scale(1);
}

.lightbox-close, .lightbox-prev, .lightbox-next {
    position: absolute;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-glass);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    transition: all 0.3s ease;
}

.lightbox-close:hover, .lightbox-prev:hover, .lightbox-next:hover {
    background: var(--flame-red);
    border-color: var(--flame-red);
}

.lightbox-close {
    top: 24px;
    right: 24px;
}

.lightbox-prev {
    left: 24px;
}

.lightbox-next {
    right: 24px;
}

.lightbox-caption {
    position: absolute;
    bottom: 24px;
    font-family: var(--font-primary);
    font-weight: 500;
    color: var(--text-white);
    font-size: 1.1rem;
}

.caption-category {
    color: var(--flame-yellow);
}

/* --- Legal Pages --- */
.simple-header {
    position: sticky;
}

.legal-page {
    padding: 140px 0 80px;
    background: radial-gradient(circle at 80% 10%, rgba(168, 0, 30, 0.12), transparent 35%);
}

.legal-container {
    max-width: 860px;
}

.legal-container h1 {
    font-size: 2.6rem;
    margin-bottom: 16px;
}

.legal-container h2 {
    font-size: 1.35rem;
    margin: 32px 0 10px;
}

.legal-container p {
    color: var(--text-muted);
    margin-bottom: 14px;
}

.legal-footer {
    padding: 24px 0;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }
}

/* --- Responsive Media Queries --- */

@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1.1fr 0.9fr;
        gap: 32px;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-visual {
        order: 2;
    }
    
    .about-img {
        height: 380px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}

@media (max-width: 768px) {
    /* Mobile Menu Toggle */
    .menu-toggle {
        display: block;
    }
    
    .main-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background: rgba(11, 7, 26, 0.98);
        backdrop-filter: blur(16px);
        flex-direction: column;
        align-items: center;
        padding-top: 60px;
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
        border-top: 1px solid var(--border-glass);
    }
    
    .main-nav.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }
    
    .nav-list {
        flex-direction: column;
        align-items: center;
        gap: 40px;
    }
    
    .nav-link {
        font-size: 1.3rem;
    }
    
    .header-cta {
        display: none;
    }
    
    /* Hero */
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .badge-gas-safe {
        justify-content: center;
    }
    
    .hero-title {
        font-size: 2.6rem;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-features {
        justify-content: center;
        flex-wrap: wrap;
        gap: 20px;
    }
    
    .hero-visual {
        max-width: 400px;
        margin: 0 auto;
    }
    
    .visual-img {
        height: 320px;
    }
    
    /* Estimator */
    .estimator-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .options-group {
        flex-direction: column;
    }
    
    /* Contact */
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    /* Section */
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .lightbox-img {
        max-width: 95%;
    }
    
    .lightbox-prev, .lightbox-next {
        width: 36px;
        height: 36px;
    }
    
    .lightbox-prev {
        left: 8px;
    }
    
    .lightbox-next {
        right: 8px;
    }
}