/* ==========================================================================
   AScoil® Endüstriyel İklimlendirme Sistemleri - Light Theme & Dropdown Menu
   Manufactured by ASER Mühendislik
   ========================================================================== */

:root {
    --bg-white: #FFFFFF;
    --bg-light: #F8FAFC;
    --bg-subtle: #F1F5F9;
    --bg-card: #FFFFFF;
    --bg-card-hover: #F8FAFC;
    
    --border-color: #E2E8F0;
    --border-highlight: rgba(225, 29, 72, 0.25);
    
    --red-primary: #E11D48;
    --red-hover: #DC2626;
    --red-dark: #9F1239;
    --red-glow: rgba(225, 29, 72, 0.15);
    
    --blue-accent: #0284C7;
    --green-accent: #059669;
    --gold-accent: #D97706;
    --purple-accent: #7C3AED;
    
    --text-main: #0F172A;
    --text-muted: #475569;
    --text-dim: #64748B;
    
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    --container-max: 1280px;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.08);
    --shadow-xl: 0 20px 45px rgba(0,0,0,0.12);
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body.light-theme {
    font-family: var(--font-main);
    background-color: var(--bg-light);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

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

button, input, select, textarea {
    font-family: inherit;
    outline: none;
    border: none;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Typography & Colors */
.text-center { text-align: center; }
.text-red { color: var(--red-primary) !important; }
.text-blue { color: var(--blue-accent) !important; }
.text-green { color: var(--green-accent) !important; }
.text-gold { color: var(--gold-accent) !important; }
.text-purple { color: var(--purple-accent) !important; }

.section-subtitle {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--red-primary);
    letter-spacing: 0.8px;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
    background: rgba(225, 29, 72, 0.08);
    padding: 0.35rem 0.9rem;
    border-radius: 50px;
    border: 1px solid rgba(225, 29, 72, 0.15);
}

.section-title {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--text-main);
    letter-spacing: -0.5px;
    margin-bottom: 1rem;
    line-height: 1.25;
}

.section-lead {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 780px;
    margin: 0 auto;
    font-weight: 400;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0.3rem 0.75rem;
    border-radius: var(--radius-sm);
}
.badge-red { background: rgba(225, 29, 72, 0.1); color: var(--red-primary); border: 1px solid rgba(225, 29, 72, 0.2); }
.badge-gold { background: rgba(217, 119, 6, 0.1); color: var(--gold-accent); border: 1px solid rgba(217, 119, 6, 0.2); }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}
.btn-sm { padding: 0.5rem 1rem; font-size: 0.85rem; }
.btn-lg { padding: 0.9rem 2rem; font-size: 1.05rem; }
.w-100 { width: 100%; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }

.btn-red {
    background: linear-gradient(135deg, var(--red-primary), var(--red-dark));
    color: #fff;
    box-shadow: 0 4px 14px var(--red-glow);
}
.btn-red:hover {
    background: linear-gradient(135deg, var(--red-hover), var(--red-primary));
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(225, 29, 72, 0.3);
}

.btn-outline-red {
    background: transparent;
    color: var(--red-primary);
    border: 1.5px solid var(--red-primary);
}
.btn-outline-red:hover {
    background: var(--red-primary);
    color: #fff;
    transform: translateY(-2px);
}

.btn-outline-dark {
    background: transparent;
    color: var(--text-main);
    border: 1.5px solid var(--text-main);
}
.btn-outline-dark:hover {
    background: var(--text-main);
    color: #fff;
    transform: translateY(-2px);
}

/* TOP ANNOUNCEMENT BAR */
.top-bar {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    padding: 0.5rem 0;
    font-size: 0.825rem;
}
.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.top-bar-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}
.top-text { color: var(--text-muted); font-weight: 500; }
.top-bar-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.top-link { color: var(--text-muted); font-weight: 500; }
.top-link:hover { color: var(--red-primary); }
.divider { color: var(--border-color); }
.lang-switch {
    background: var(--bg-subtle);
    color: var(--text-main);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    border: 1px solid var(--border-color);
}
.lang-switch:hover { background: var(--red-primary); color: #fff; border-color: var(--red-primary); }

/* MAIN NAVBAR & DROPDOWNS */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 0.85rem 0;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo-area {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}
.logo-text {
    display: flex;
    flex-direction: column;
}
.brand-ascoil {
    font-size: 1.85rem;
    font-weight: 900;
    letter-spacing: -0.5px;
    color: var(--red-primary);
    line-height: 1;
}
.trade-mark {
    font-size: 0.9rem;
    vertical-align: super;
}
.brand-sub {
    font-size: 0.625rem;
    font-weight: 800;
    color: var(--text-muted);
    letter-spacing: 1px;
    margin-top: 2px;
}
.powered-by {
    display: flex;
    flex-direction: column;
    padding-left: 1rem;
    border-left: 1px solid var(--border-color);
}
.by-text {
    font-size: 0.575rem;
    color: var(--text-dim);
    letter-spacing: 0.5px;
    font-weight: 700;
}
.aser-text {
    font-size: 0.75rem;
    font-weight: 800;
    color: var(--text-main);
    letter-spacing: 0.5px;
}

/* Nav Menu & Dropdown Hover State */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 1.75rem;
}
.nav-link {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--text-main);
    padding: 0.75rem 0;
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.35rem;
    letter-spacing: 0.3px;
}
.dropdown-icon {
    font-size: 0.65rem;
    transition: var(--transition);
    color: var(--text-dim);
}
.nav-link:hover, .nav-link.active {
    color: var(--red-primary);
}
.nav-link:hover .dropdown-icon {
    transform: rotate(180deg);
    color: var(--red-primary);
}

/* Dropdown Menu Container */
.nav-item.has-dropdown {
    position: relative;
}
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    padding: 0.75rem 0;
    min-width: 250px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 100;
}
.nav-item.has-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}
.dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-main);
    transition: var(--transition);
}
.dropdown-menu a:hover {
    background: var(--bg-light);
    color: var(--red-primary);
    padding-left: 1.5rem;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.mobile-toggle {
    display: none;
    background: transparent;
    color: var(--text-main);
    font-size: 1.5rem;
    cursor: pointer;
}

/* SECTION 1: HERO SLIDER (LIGHT MODE) */
.hero-slider-section {
    position: relative;
    height: 560px;
    overflow: hidden;
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
}
.slider-wrapper {
    position: relative;
    height: 100%;
    width: 100%;
}
.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.8s ease, visibility 0.8s ease;
    display: flex;
    align-items: center;
}
.slide.active {
    opacity: 1;
    visibility: visible;
}
.slide-content {
    max-width: 820px;
    z-index: 2;
}
.slide-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--red-primary);
    background: rgba(225, 29, 72, 0.08);
    border: 1px solid rgba(225, 29, 72, 0.2);
    padding: 0.4rem 1rem;
    border-radius: 50px;
    margin-bottom: 1.25rem;
}
.slide-title {
    font-size: 3rem;
    font-weight: 900;
    line-height: 1.15;
    letter-spacing: -1px;
    color: var(--text-main);
    margin-bottom: 1rem;
}
.slide-desc {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    line-height: 1.6;
}
.slide-stats {
    display: flex;
    gap: 2.5rem;
    margin-bottom: 2.25rem;
    padding: 1.25rem 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}
.stat-item {
    display: flex;
    flex-direction: column;
}
.stat-num {
    font-family: var(--font-mono);
    font-size: 1.85rem;
    font-weight: 800;
    color: var(--text-main);
}
.stat-lbl {
    font-size: 0.825rem;
    color: var(--text-dim);
    font-weight: 600;
}
.slide-btns {
    display: flex;
    gap: 1rem;
}

.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}
.slider-btn:hover {
    background: var(--red-primary);
    border-color: var(--red-primary);
    color: #fff;
}
.prev-btn { left: 2rem; }
.next-btn { right: 2rem; }

.slider-dots {
    position: absolute;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    gap: 0.75rem;
}
.dot {
    width: 36px;
    height: 6px;
    border-radius: 3px;
    background: var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}
.dot.active {
    background: var(--red-primary);
    width: 50px;
}

/* SECTION 2: KURUMSAL (ABOUT & VISION MISSION) */
.about-section {
    padding: 6rem 0;
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
}
.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: center;
}
.lead-text {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 1rem;
    line-height: 1.6;
}
.body-text {
    font-size: 0.975rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    line-height: 1.6;
}
.about-cards-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}
.about-mini-card {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    border-radius: var(--radius-md);
}
.about-mini-card .icon-lg {
    font-size: 1.8rem;
    margin-bottom: 0.75rem;
}
.about-mini-card h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}
.about-mini-card p {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.about-image-card {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}
.about-image-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.about-experience-badge {
    position: absolute;
    bottom: 1.5rem;
    left: 1.5rem;
    right: 1.5rem;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border-color);
    padding: 1.25rem;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: 1rem;
}
.exp-years {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 900;
    color: var(--red-primary);
}
.exp-text {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-main);
}

/* SECTION 3: PROBLEM SOLVER */
.problem-solver-section {
    padding: 6rem 0;
    background: var(--bg-light);
}
.solver-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.75rem;
    margin-top: 3rem;
}
.solver-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.solver-card:hover {
    border-color: var(--border-highlight);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.solver-problem, .solver-solution {
    display: flex;
    gap: 1.25rem;
    align-items: flex-start;
}
.prob-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: #FEE2E2;
    color: #DC2626;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    flex-shrink: 0;
}
.sol-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: #D1FAE5;
    color: var(--green-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    flex-shrink: 0;
}
.prob-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: #DC2626;
    font-weight: 700;
}
.solver-card h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.3rem;
    color: var(--text-main);
}
.solver-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
}
.solver-arrow {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--red-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.8rem;
    background: rgba(225, 29, 72, 0.08);
    border-radius: var(--radius-sm);
    width: fit-content;
}

/* SECTION 4: QUICK ACCESS & TOOLS */
.quick-access-section {
    padding: 6rem 0;
    background: var(--bg-white);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}
.quick-tools-grid {
    display: grid;
    grid-template-columns:  1fr 1fr;
    gap: 1.75rem;
    margin-top: 3rem;
}
.quick-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    position: relative;
    box-shadow: var(--shadow-sm);
}
.card-header-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-family: var(--font-mono);
    font-size: 0.725rem;
    font-weight: 700;
    color: var(--red-primary);
    background: rgba(225, 29, 72, 0.08);
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
    width: fit-content;
}
.quick-card h3 {
    font-size: 1.3rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}
.quick-card p {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

/* Calculator Form */
.calc-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
    gap: 0.75rem;
}
.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}
.form-group label {
    font-size: 0.775rem;
    font-weight: 700;
    color: var(--text-main);
}
.form-group input, .form-group select, .form-group textarea {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.65rem 0.85rem;
    color: var(--text-main);
    font-size: 0.9rem;
    transition: var(--transition);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    border-color: var(--red-primary);
    background: var(--bg-white);
    box-shadow: 0 0 0 3px rgba(225, 29, 72, 0.15);
}

.calc-results {
    margin-top: 1.5rem;
    background: var(--bg-light);
    border: 1px solid var(--border-highlight);
    border-radius: var(--radius-md);
    padding: 1.25rem;
}
.calc-results.hidden { display: none; }
.res-badge {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--green-accent);
    font-weight: 700;
    margin-bottom: 0.75rem;
}
.res-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.85rem;
}
.res-item {
    display: flex;
    flex-direction: column;
}
.res-item .lbl {
    font-size: 0.725rem;
    color: var(--text-dim);
    font-weight: 600;
}
.res-item .val {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-main);
}
.res-item.highlight {
    grid-column: span 2;
    background: rgba(225, 29, 72, 0.08);
    padding: 0.65rem 0.85rem;
    border-radius: var(--radius-sm);
    border: 1px dashed var(--red-primary);
}
.val-code {
    font-family: var(--font-mono);
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--red-primary);
}

/* Downloads List */
.download-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}
.download-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    padding: 0.85rem 1rem;
    border-radius: var(--radius-md);
    transition: var(--transition);
}
.download-list li:hover {
    border-color: var(--red-primary);
    background: var(--bg-white);
    box-shadow: var(--shadow-sm);
}
.download-list strong {
    font-size: 0.875rem;
    display: block;
    line-height: 1.3;
    color: var(--text-main);
}
.download-list small {
    font-size: 0.725rem;
    color: var(--text-dim);
}
.btn-icon-dl {
    margin-left: auto;
    background: rgba(225, 29, 72, 0.1);
    color: var(--red-primary);
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}
.btn-icon-dl:hover {
    background: var(--red-primary);
    color: #fff;
}

/* Canvas Simulation */
.canvas-container {
    background: #0B1120;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}
#vortexCanvas {
    width: 100%;
    height: 200px;
    border-radius: var(--radius-sm);
    background: #0F172A;
}
.canvas-controls {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
    width: 100%;
}
.btn-sim-mode {
    flex: 1;
    padding: 0.45rem;
    font-size: 0.775rem;
    font-weight: 700;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border-radius: var(--radius-sm);
    cursor: pointer;
}
.btn-sim-mode.active {
    background: var(--red-primary);
    color: #fff;
}
.sim-info {
    margin-top: 0.85rem;
    font-size: 0.775rem;
    color: var(--text-muted);
}

/* SECTION 5: PRODUCTS GRID MATRIX */
.products-grid-section {
    padding: 6rem 0;
    background: var(--bg-light);
}
.products-grid-section .section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 3rem;
}
.matrix-filter-buttons {
    display: flex;
    gap: 0.5rem;
    background: var(--bg-white);
    padding: 0.35rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}
.filter-btn {
    padding: 0.5rem 1rem;
    font-size: 0.825rem;
    font-weight: 700;
    background: transparent;
    color: var(--text-muted);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}
.filter-btn.active, .filter-btn:hover {
    background: var(--red-primary);
    color: #fff;
}

.products-matrix {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
}
.product-code-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.product-code-card:hover {
    border-color: var(--red-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.card-top {
    margin-bottom: 1.25rem;
}
.type-badge {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 800;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    letter-spacing: 1px;
    display: inline-block;
    margin-bottom: 0.5rem;
}
.type-badge.red { background: rgba(225, 29, 72, 0.1); color: var(--red-primary); }
.type-badge.blue { background: rgba(2, 132, 199, 0.1); color: var(--blue-accent); }
.type-badge.green { background: rgba(5, 150, 105, 0.1); color: var(--green-accent); }
.type-badge.gold { background: rgba(217, 119, 6, 0.1); color: var(--gold-accent); }

.type-code-name {
    font-family: var(--font-mono);
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text-main);
    line-height: 1.2;
}
.system-tag {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

.specs-table {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    margin-bottom: 1.5rem;
    background: var(--bg-light);
    padding: 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}
.spec-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.825rem;
}
.spec-name { color: var(--text-dim); }
.spec-val {
    font-family: var(--font-mono);
    font-weight: 700;
    color: var(--text-main);
    text-align: right;
}

.card-footer-actions {
    margin-top: auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

/* SECTION 6: FILTRATION */
.filtration-section {
    padding: 6rem 0;
    background: var(--bg-white);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}
.filter-classes-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
}
.filter-class-card {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    padding: 1.75rem;
    border-radius: var(--radius-lg);
    position: relative;
}
.filter-class-card.highlight-red {
    border-color: var(--red-primary);
    background: rgba(225, 29, 72, 0.03);
}
.f-class-num {
    font-family: var(--font-mono);
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--red-primary);
    margin-bottom: 0.5rem;
}
.filter-class-card h4 {
    font-size: 1.1rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}
.filter-class-card p {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* SECTION 7: SECTOR MAP */
.sector-map-section {
    padding: 6rem 0;
    background: var(--bg-light);
}
.sector-tabs {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: 2.5rem;
    margin-bottom: 2.5rem;
}
.sector-tab-btn {
    padding: 0.75rem 1.25rem;
    font-size: 0.9rem;
    font-weight: 700;
    background: var(--bg-white);
    color: var(--text-muted);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.6rem;
    box-shadow: var(--shadow-sm);
}
.sector-tab-btn.active, .sector-tab-btn:hover {
    background: var(--red-primary);
    color: #fff;
    border-color: var(--red-primary);
}

.sector-content-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 3rem;
    box-shadow: var(--shadow-md);
}
.sector-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}
.sector-text h3 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--text-main);
}
.sector-text p {
    font-size: 1.05rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}
.sector-features-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}
.sector-features-list li {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    font-size: 0.95rem;
}
.sector-features-list li i {
    color: var(--green-accent);
}
.sector-img-box {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    height: 340px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}
.sector-img-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.sector-img-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.9), transparent);
    padding: 1.5rem;
    color: #fff;
}
.sector-code-tag {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 700;
    color: #FF4D6D;
}

/* SECTION 8: CASE STUDY */
.case-study-section {
    padding: 6rem 0;
    background: var(--bg-white);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}
.case-study-box {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 3.5rem;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 3.5rem;
    box-shadow: var(--shadow-md);
}
.case-title {
    font-size: 2.2rem;
    font-weight: 900;
    margin-top: 1rem;
    margin-bottom: 1rem;
    line-height: 1.2;
    color: var(--text-main);
}
.case-desc {
    font-size: 1.05rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}
.case-metrics-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
    margin-bottom: 2rem;
}
.metric-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    padding: 1.25rem;
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
}
.m-val {
    font-family: var(--font-mono);
    font-size: 2.2rem;
    font-weight: 900;
}
.m-lbl {
    font-size: 0.825rem;
    color: var(--text-dim);
    font-weight: 600;
}

.case-quote {
    background: rgba(225, 29, 72, 0.06);
    border-left: 4px solid var(--red-primary);
    padding: 1.25rem 1.5rem;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}
.quote-icon {
    color: var(--red-primary);
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}
.case-quote p {
    font-style: italic;
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}
.case-quote small {
    color: var(--text-muted);
    font-weight: 700;
}

.comparison-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    padding: 2rem;
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    height: 100%;
    box-shadow: var(--shadow-sm);
}
.comparison-card h3 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--text-main);
}
.bar-comparison {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}
.bar-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}
.bar-lbl {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 600;
}
.bar-bg {
    background: var(--bg-subtle);
    border-radius: 50px;
    height: 28px;
    overflow: hidden;
}
.bar-fill {
    height: 100%;
    display: flex;
    align-items: center;
    padding-left: 0.85rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    color: #fff;
    border-radius: 50px;
}
.bar-fill.red { background: linear-gradient(90deg, #EF4444, #991B1B); }
.bar-fill.green { background: linear-gradient(90deg, #10B981, #047857); }

.card-divider {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 1.5rem 0;
}
.case-specs-list {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    font-size: 0.875rem;
}

/* SECTION 9: TRUST & CERTS */
.trust-section {
    padding: 6rem 0;
    background: var(--bg-light);
}
.certs-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1.25rem;
    margin-top: 3rem;
}
.cert-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem 1rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.cert-card:hover {
    border-color: var(--red-primary);
    transform: translateY(-3px);
}
.cert-icon {
    font-size: 2.2rem;
    color: var(--red-primary);
    margin-bottom: 1rem;
}
.cert-card h4 {
    font-size: 0.95rem;
    font-weight: 800;
    margin-bottom: 0.35rem;
}
.cert-card p {
    font-size: 0.75rem;
    color: var(--text-dim);
    line-height: 1.3;
}

/* SECTION 10: DEALER NETWORK */
.dealer-section {
    padding: 6rem 0;
    background: var(--bg-white);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}
.dealers-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
}
.dealer-card {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
}
.dealer-region {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 800;
    color: var(--red-primary);
    letter-spacing: 0.5px;
    display: block;
    margin-bottom: 0.4rem;
}
.dealer-card h4 {
    font-size: 1.1rem;
    font-weight: 800;
    margin-bottom: 0.75rem;
}
.dealer-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.35rem;
}

/* SECTION 11: CONTACT & DISCOVERY */
.contact-section {
    padding: 6rem 0;
    background: var(--bg-light);
}
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 4rem;
    align-items: center;
}
.contact-info-col h2 {
    font-size: 2.3rem;
    font-weight: 900;
    margin-top: 1rem;
    margin-bottom: 1rem;
    line-height: 1.25;
}
.contact-info-col p {
    font-size: 1.05rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
}
.info-items {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}
.info-item {
    display: flex;
    gap: 1.25rem;
    align-items: flex-start;
}
.item-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: rgba(225, 29, 72, 0.1);
    color: var(--red-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}
.info-item strong {
    display: block;
    font-size: 0.95rem;
    margin-bottom: 0.2rem;
}
.info-item p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin: 0;
}

.discovery-form {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
}
.discovery-form h3 {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 0.35rem;
}
.form-sub {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

/* FOOTER */
.footer {
    background: #0F172A;
    color: #94A3B8;
    padding-top: 4rem;
    padding-bottom: 2rem;
    font-size: 0.875rem;
}
.footer-top {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 3rem;
    margin-bottom: 3rem;
}
.footer-brand p {
    margin-top: 1rem;
    margin-bottom: 1.5rem;
    line-height: 1.6;
    color: #94A3B8;
}
.social-links {
    display: flex;
    gap: 0.75rem;
}
.social-links a {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
}
.social-links a:hover {
    background: var(--red-primary);
}

.footer-col h4 {
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
}
.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}
.footer-col a { color: #94A3B8; }
.footer-col a:hover {
    color: #fff;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid #1E293B;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
}
.footer-legal {
    display: flex;
    gap: 0.75rem;
}

/* MODAL OVERLAY */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.75);
    backdrop-filter: blur(6px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}
.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}
.modal-container {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    width: 90%;
    max-width: 720px;
    max-height: 90vh;
    overflow-y: auto;
    padding: 2.5rem;
    position: relative;
    box-shadow: var(--shadow-xl);
}
.modal-close {
    position: absolute;
    top: 1.25rem;
    right: 1.5rem;
    background: transparent;
    color: var(--text-muted);
    font-size: 2rem;
    cursor: pointer;
}
.modal-close:hover { color: var(--text-main); }

.modal-header {
    margin-bottom: 1.5rem;
}
.modal-header h2 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-top: 0.5rem;
    color: var(--text-main);
}
.modal-body {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-muted);
}
.modal-footer {
    margin-top: 2rem;
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

/* RESPONSIVE DESIGN */
@media (max-width: 1024px) {
    .quick-tools-grid { grid-template-columns: 1fr; }
    .products-matrix { grid-template-columns: repeat(2, 1fr); }
    .certs-grid { grid-template-columns: repeat(3, 1fr); }
    .dealers-grid { grid-template-columns: repeat(2, 1fr); }
    .filter-classes-grid { grid-template-columns: repeat(2, 1fr); }
    .case-study-box { grid-template-columns: 1fr; }
    .footer-top { grid-template-columns: 1fr 1fr; }
    .sector-detail-grid { grid-template-columns: 1fr; }
    .about-grid { grid-template-columns: 1fr; }
    .contact-wrapper { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .nav-menu { display: none; }
    .mobile-toggle { display: block; }
    .slide-title { font-size: 2.1rem; }
    .products-matrix { grid-template-columns: 1fr; }
    .solver-grid { grid-template-columns: 1fr; }
    .dealers-grid { grid-template-columns: 1fr; }
    .filter-classes-grid { grid-template-columns: 1fr; }
    .certs-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-top { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
}