* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-base);
            background: var(--bg);
            color: var(--text);
            font-size: var(--fs-base);
            line-height: 1.85;
            padding-bottom: calc(var(--sticky-phone-h) + env(safe-area-inset-bottom));
            overflow-x: hidden;
            width: 100%;
        }

        img,
        svg {
            display: block;
            max-width: 100%;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 clamp(1rem, 3vw, 1.3rem);
            width: 100%;
        }

        :focus-visible {
            outline: 3px solid var(--accent-500);
            outline-offset: 2px;
            border-radius: var(--r-sm);
        }

        .skip-link {
            position: absolute;
            right: -999px;
            top: 0;
            background: var(--primary-800);
            color: #fff;
            padding: 0.8rem 1.2rem;
            z-index: 100;
            border-radius: 0 0 var(--r-sm) var(--r-sm);
            font-weight: 700;
            font-size: var(--fs-sm);
        }

        .skip-link:focus {
            right: var(--sp-3);
        }

        @media (prefers-reduced-motion: reduce) {
            html {
                scroll-behavior: auto;
            }

            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }
        }

        /* ---------- Header ---------- */


        /* ---------- Hero ---------- */
        .hero {
            position: relative;
            padding: var(--sp-5) 0;
            background: radial-gradient(1100px 480px at 85% -15%, var(--primary-100) 0%, transparent 60%), var(--bg);
        }

        .breadcrumb {
            font-size: var(--fs-2xs);
            color: var(--text-muted);
            margin-bottom: var(--sp-3);
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem;
            align-items: center;
        }

        .breadcrumb a {
            color: var(--primary-600);
            font-weight: 600;
        }

        .breadcrumb span[aria-hidden] {
            color: var(--text-muted);
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--trust-100);
            color: var(--trust-600);
            font-weight: 700;
            font-size: var(--fs-2xs);
            padding: 0.45rem 0.9rem;
            border-radius: var(--r-pill);
            margin-bottom: var(--sp-3);
        }

        .pulse-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--trust-500);
            animation: pulse 1.8s infinite;
            flex-shrink: 0;
        }

        @keyframes pulse {
            0% {
                box-shadow: 0 0 0 0 rgba(46, 143, 88, .55);
            }

            70% {
                box-shadow: 0 0 0 9px rgba(46, 143, 88, 0);
            }

            100% {
                box-shadow: 0 0 0 0 rgba(46, 143, 88, 0);
            }
        }

        h1 {
            font-size: var(--fs-3xl);
            font-weight: 900;
            line-height: 1.32;
            color: var(--primary-900);
            max-width: 22ch;
            letter-spacing: -0.01em;
        }

        h1 .hl {
            color: var(--accent-600);
        }

        .hero-grid {
            display: grid;
            gap: var(--sp-5);
            align-items: center;
            margin-top: var(--sp-2);
        }

        @media (min-width: 960px) {
            .hero-grid {
                grid-template-columns: 1.15fr 0.85fr;
            }
        }

        .hero-lead {
            margin-top: var(--sp-3);
            font-size: var(--fs-md);
            color: var(--text-secondary);
            max-width: 60ch;
        }

        .hero-lead strong {
            color: var(--primary-800);
        }

        .hero-actions {
            margin-top: var(--sp-4);
            display: flex;
            flex-wrap: wrap;
            gap: var(--sp-2);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            font-weight: 800;
            font-size: var(--fs-sm);
            padding: 0.95rem 1.6rem;
            min-height: var(--touch);
            border-radius: var(--r-pill);
            border: none;
            cursor: pointer;
            transition: transform var(--transition), background var(--transition), box-shadow var(--transition);
            white-space: nowrap;
        }

        .btn-accent {
            background: var(--accent-500);
            color: #fff;
            box-shadow: var(--shadow-accent);
        }

        .btn-accent:hover {
            background: var(--accent-600);
            transform: translateY(-2px);
        }

        .btn-primary-outline {
            background: var(--surface);
            color: var(--primary-700);
            border: 1.5px solid var(--primary-200);
            box-shadow: var(--shadow-sm);
        }

        .btn-primary-outline:hover {
            border-color: var(--primary-400);
            transform: translateY(-2px);
        }

        /* Hero visual: quick facts card */
        .facts-card {
            background: var(--surface);
            border: 1px solid var(--border-soft);
            border-radius: var(--r-lg);
            box-shadow: var(--shadow-lg);
            padding: var(--sp-4);
        }

        .facts-card-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-bottom: var(--sp-3);
            border-bottom: 1px dashed var(--border);
            margin-bottom: var(--sp-3);
        }

        .facts-card-head span:first-child {
            font-weight: 800;
            color: var(--primary-800);
            font-size: var(--fs-sm);
        }

        .status-badge {
            background: var(--trust-100);
            color: var(--trust-600);
            font-size: var(--fs-2xs);
            font-weight: 700;
            padding: 0.3rem 0.7rem;
            border-radius: var(--r-pill);
        }

        .fact-row {
            display: flex;
            align-items: center;
            gap: var(--sp-2);
            padding: 0.7rem 0;
            border-bottom: 1px solid var(--border-soft);
            font-size: var(--fs-sm);
        }

        .fact-row:last-child {
            border-bottom: none;
        }

        .fact-icon {
            width: 34px;
            height: 34px;
            border-radius: var(--r-sm);
            background: var(--primary-50);
            color: var(--primary-600);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 1.1rem;
        }

        .fact-row-text b {
            display: block;
            color: var(--text);
            font-weight: 700;
        }

        .fact-row-text small {
            color: var(--text-muted);
        }

        /* ---------- Section shells ---------- */
        section {
            padding: var(--sp-6) 0;
            scroll-margin-top: 80px;
        }

        .section-alt {
            background: var(--bg-alt);
        }

        .section-head {
            max-width: 68ch;
            margin-bottom: var(--sp-5);
        }

        .section-head .eyebrow {
            background: var(--primary-50);
            color: var(--primary-600);
        }

        h2 {
            font-size: var(--fs-2xl);
            font-weight: 800;
            color: var(--primary-900);
            line-height: 1.35;
        }

        h2+p {
            margin-top: var(--sp-2);
            color: var(--text-secondary);
            font-size: var(--fs-md);
        }

        h3 {
            font-size: var(--fs-lg);
            font-weight: 800;
            color: var(--primary-800);
            margin-bottom: var(--sp-2);
        }

        p {
            max-width: 75ch;
        }

        /* ---------- Story / mission ---------- */
        .story-wrap {
            display: grid;
            gap: var(--sp-4);
        }

        @media (min-width: 860px) {
            .story-wrap {
                grid-template-columns: 1.1fr 0.9fr;
                align-items: start;
            }
        }

        .story-wrap p+p {
            margin-top: var(--sp-2);
            color: var(--text-secondary);
        }

        .mission-card {
            background: var(--surface);
            border: 1px solid var(--border-soft);
            border-radius: var(--r-lg);
            padding: var(--sp-4);
            box-shadow: var(--shadow-sm);
        }

        .mission-card h3 {
            font-size: var(--fs-md);
        }

        .mission-list {
            display: flex;
            flex-direction: column;
            gap: var(--sp-2);
            margin-top: var(--sp-2);
        }

        .mission-list li {
            display: flex;
            gap: 0.6rem;
            align-items: flex-start;
            font-size: var(--fs-sm);
            color: var(--text-secondary);
        }

        .mission-list .dot {
            flex-shrink: 0;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-500);
            margin-top: 0.55rem;
        }

        /* ---------- Timeline ---------- */
        .timeline {
            position: relative;
            padding-inline-start: var(--sp-4);
        }

        .timeline::before {
            content: "";
            position: absolute;
            inset-inline-start: 6px;
            top: 6px;
            bottom: 6px;
            width: 2px;
            background: var(--border);
        }

        .timeline-item {
            position: relative;
            padding-bottom: var(--sp-4);
        }

        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .timeline-item::before {
            content: "";
            position: absolute;
            inset-inline-start: -1.55rem;
            top: 4px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--primary-600);
            border: 3px solid var(--bg);
            box-shadow: 0 0 0 2px var(--primary-200);
        }

        .timeline-item b {
            display: block;
            color: var(--primary-800);
            font-weight: 800;
            font-size: var(--fs-sm);
            margin-bottom: 0.2rem;
        }

        .timeline-item span {
            color: var(--text-secondary);
            font-size: var(--fs-sm);
        }

        /* ---------- USP / why us ---------- */
        .why-us-panel {
            background: var(--primary-800);
            border-radius: var(--r-lg);
            padding: var(--sp-5) clamp(1.2rem, 4vw, 2.5rem);
            color: var(--text-on-dark);
        }

        .why-us-panel .section-head h2 {
            color: #fff;
        }

        .why-us-panel .section-head p {
            color: var(--text-on-dark-muted);
        }

        .why-us-panel .eyebrow {
            background: rgba(255, 255, 255, .1);
            color: var(--accent-300);
        }

        .why-grid {
            display: grid;
            gap: var(--sp-3);
            grid-template-columns: 1fr;
        }

        @media (min-width: 620px) {
            .why-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        .why-item {
            display: flex;
            gap: var(--sp-2);
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .09);
            border-radius: var(--r-md);
            padding: var(--sp-3);
        }

        .why-item .check {
            width: 30px;
            height: 30px;
            flex-shrink: 0;
            border-radius: 50%;
            background: var(--trust-500);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: var(--fs-sm);
        }

        .why-item b {
            display: block;
            font-size: var(--fs-sm);
            font-weight: 700;
            margin-bottom: 0.2rem;
        }

        .why-item span {
            font-size: var(--fs-xs);
            color: var(--text-on-dark-muted);
        }

        .stats-row {
            margin-top: var(--sp-5);
            display: flex;
            flex-wrap: wrap;
            gap: var(--sp-4);
            padding-top: var(--sp-4);
            border-top: 1px dashed rgba(255, 255, 255, .15);
        }

        .stat b {
            font-size: var(--fs-xl);
            font-weight: 900;
            color: var(--accent-300);
            display: block;
        }

        .stat span {
            font-size: var(--fs-xs);
            color: var(--text-on-dark-muted);
        }

        /* ---------- Team / technicians ---------- */
        .team-grid {
            display: grid;
            gap: var(--sp-3);
            grid-template-columns: 1fr;
        }

        @media (min-width: 620px) {
            .team-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 960px) {
            .team-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        .team-card {
            background: var(--surface);
            border: 1px solid var(--border-soft);
            border-radius: var(--r-lg);
            padding: var(--sp-3);
            text-align: center;
            box-shadow: var(--shadow-sm);
        }

        .team-avatar {
            width: 64px;
            height: 64px;
            margin: 0 auto var(--sp-2);
            border-radius: 50%;
            background: var(--primary-100);
            color: var(--primary-700);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            font-weight: 800;
        }

        .team-card b {
            display: block;
            font-size: var(--fs-sm);
            color: var(--primary-800);
        }

        .team-card span {
            font-size: var(--fs-xs);
            color: var(--text-muted);
        }

        .team-card .badge {
            display: inline-block;
            margin-top: var(--sp-2);
            font-size: var(--fs-2xs);
            font-weight: 700;
            color: var(--trust-600);
            background: var(--trust-100);
            padding: 0.3rem 0.7rem;
            border-radius: var(--r-pill);
        }

        /* ---------- Coverage ---------- */
        .coverage {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        .chip {
            background: var(--surface);
            border: 1px solid var(--border);
            color: var(--text-secondary);
            font-weight: 600;
            font-size: var(--fs-2xs);
            padding: 0.4rem 0.8rem;
            border-radius: var(--r-pill);
        }

        .chip.karaj {
            background: var(--accent-100);
            color: var(--accent-700);
            border-color: transparent;
        }

        /* ---------- Certifications ---------- */
        .cert-grid {
            display: grid;
            gap: var(--sp-3);
            grid-template-columns: 1fr;
        }

        @media (min-width: 620px) {
            .cert-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        .cert-card {
            display: flex;
            gap: var(--sp-2);
            align-items: flex-start;
            background: var(--surface);
            border: 1px solid var(--border-soft);
            border-radius: var(--r-md);
            padding: var(--sp-3);
        }

        .cert-icon {
            width: 44px;
            height: 44px;
            flex-shrink: 0;
            border-radius: var(--r-sm);
            background: var(--primary-50);
            color: var(--primary-600);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
        }

        .cert-card b {
            display: block;
            font-size: var(--fs-sm);
            color: var(--primary-800);
            margin-bottom: 0.2rem;
        }

        .cert-card span {
            font-size: var(--fs-xs);
            color: var(--text-secondary);
        }

        /* ---------- Final CTA ---------- */
        .final-cta {
            text-align: center;
            background: linear-gradient(160deg, var(--primary-700), var(--primary-900));
            border-radius: var(--r-lg);
            padding: var(--sp-6) clamp(1rem, 5vw, 2rem);
            color: var(--text-on-dark);
        }

        .final-cta h2 {
            color: #fff;
        }

        .final-cta p {
            color: var(--text-on-dark-muted);
            max-width: 50ch;
            margin: var(--sp-2) auto var(--sp-4);
        }

        .final-cta .hero-actions {
            justify-content: center;
        }

        /* ---------- Footer ---------- */
       
        /* ---------- Sticky mobile call bar ---------- */
        .sticky-bar {
            position: fixed;
            inset-inline: 0;
            bottom: 0;
            height: var(--sticky-phone-h);
            padding-bottom: env(safe-area-inset-bottom);
            background: var(--surface);
            border-top: 1px solid var(--border);
            box-shadow: 0 -8px 24px rgba(9, 58, 79, .12);
            display: flex;
            z-index: 50;
        }

        .sticky-bar a {
            flex: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            font-weight: 800;
            font-size: var(--fs-sm);
            min-height: var(--touch);
        }

        .sticky-bar .call {
            color: var(--primary-700);
        }

        .sticky-bar .book {
            background: var(--accent-500);
            color: #fff;
        }

        @media (max-width: 380px) {
            :root {
                --sticky-phone-h: 56px;
            }

            .btn {
                padding-inline: 1.1rem;
            }
        }

        @media print {

            .sticky-bar,
            header {
                display: none !important;
            }
        }