@font-face {
            font-family: "IRANSans";
            src: url("fonts/IRANSansWeb.ttf");
            font-style: normal;
            font-weight: 100 900;
            font-display: swap;
        }

        :root {
            --psn-blue: #0000FE;
            --psn-blue-dark: #0000B8;
            --psn-blue-soft: #EEF2FF;
            --psn-blue-border: #DCE3FF;
            --psn-text: #101828;
            --psn-muted: #667085;
            --psn-light: #F8FAFC;
            --psn-border: #E7ECF5;
            --psn-green: #178A55;
            --psn-shadow: 0 22px 60px rgba(16, 24, 40, .08);
        }

        * {
            box-sizing: border-box;
            text-decoration: none;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            min-height: 100vh;
            background: #FFFFFF;
            color: var(--psn-text);
            font-family: "IRANSans", sans-serif;
        }

        .psn-page {
            position: relative;
            min-height: 100vh;
            overflow: hidden;
            background:
                radial-gradient(circle at 92% 4%, rgba(0, 0, 254, .055), transparent 26rem),
                linear-gradient(180deg, #FFFFFF 0%, #FFFFFF 72%, #F8FAFC 100%);
        }

        .psn-container {
            width: min(1180px, calc(100% - 40px));
            margin: 0 auto;
        }

        /* Decorative engineering lines */
        .psn-page::before,
        .psn-page::after {
            content: "";
            position: absolute;
            z-index: 0;
            pointer-events: none;
            border: 1px solid rgba(0, 0, 254, .07);
            transform: rotate(24deg);
        }

        .psn-page::before {
            width: 320px;
            height: 320px;
            left: -180px;
            top: 150px;
            border-radius: 42px;
        }

        .psn-page::after {
            width: 230px;
            height: 230px;
            right: -130px;
            bottom: 80px;
            border-radius: 50%;
        }

        .psn-header {
            position: relative;
            z-index: 1;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 24px;
            padding: 28px 0;
        }

        .psn-brand {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .psn-brand-mark {
            display: grid;
            place-items: center;
            width: 52px;
            height: 52px;
            border-radius: 16px;
            background: var(--psn-blue);
            color: #FFFFFF;
            font-size: 1.05rem;
            font-weight: 900;
            letter-spacing: .5px;
            box-shadow: 0 10px 24px rgba(0, 0, 254, .22);
        }

        .psn-brand-name {
            margin: 0;
            font-size: 1.05rem;
            font-weight: 900;
            color: var(--psn-text);
        }

        .psn-brand-subtitle {
            margin: 4px 0 0;
            color: var(--psn-muted);
            font-size: .78rem;
        }

        .psn-header-label {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--psn-muted);
            font-size: .82rem;
        }

        .psn-status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--psn-green);
            box-shadow: 0 0 0 5px rgba(23, 138, 85, .10);
        }

        /* Hero */
        .psn-hero {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: minmax(0, 1.25fr) minmax(310px, .75fr);
            gap: 30px;
            align-items: center;
            min-height: 560px;
            padding: 58px 0 64px;
        }

        .psn-hero-content {
            max-width: 700px;
        }

        .psn-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 9px;
            padding: 9px 14px;
            border: 1px solid var(--psn-blue-border);
            border-radius: 999px;
            background: var(--psn-blue-soft);
            color: var(--psn-blue-dark);
            font-size: .82rem;
            font-weight: 800;
        }

        .psn-eyebrow-line {
            width: 25px;
            height: 2px;
            background: var(--psn-blue);
        }

        .psn-hero h1 {
            margin: 24px 0 18px;
            max-width: 680px;
            font-size: clamp(2.1rem, 5vw, 4.3rem);
            line-height: 1.35;
            font-weight: 900;
            letter-spacing: -.8px;
            color: var(--psn-text);
        }

        .psn-hero h1 span {
            color: var(--psn-blue);
        }

        .psn-hero-text {
            max-width: 620px;
            margin: 0;
            color: var(--psn-muted);
            font-size: 1.04rem;
            line-height: 2.25;
            text-align: justify;
        }

        .psn-hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 30px;
        }

        .psn-button {
            display: inline-flex;
            justify-content: center;
            align-items: center;
            min-height: 48px;
            padding: 0 22px;
            border-radius: 13px;
            font-size: .9rem;
            font-weight: 800;
            transition: .25s ease;
        }

        .psn-button-primary {
            background: var(--psn-blue);
            color: #FFFFFF;
            box-shadow: 0 12px 24px rgba(0, 0, 254, .18);
        }

        .psn-button-primary:hover {
            background: var(--psn-blue-dark);
            transform: translateY(-2px);
        }

        .psn-button-secondary {
            border: 1px solid var(--psn-border);
            color: var(--psn-text);
            background: #FFFFFF;
        }

        .psn-button-secondary:hover {
            border-color: var(--psn-blue);
            color: var(--psn-blue);
            transform: translateY(-2px);
        }

        /* Right visual card */
        .psn-visual {
            position: relative;
            min-height: 400px;
            display: grid;
            place-items: center;
        }

        .psn-visual-orbit {
            position: absolute;
            width: 330px;
            height: 330px;
            border: 1px solid rgba(0, 0, 254, .13);
            border-radius: 50%;
        }

        .psn-visual-orbit::before,
        .psn-visual-orbit::after {
            content: "";
            position: absolute;
            border-radius: 50%;
            background: var(--psn-blue);
        }

        .psn-visual-orbit::before {
            width: 9px;
            height: 9px;
            top: 22px;
            right: 80px;
            box-shadow: 0 0 0 7px rgba(0, 0, 254, .08);
        }

        .psn-visual-orbit::after {
            width: 6px;
            height: 6px;
            bottom: 52px;
            left: 30px;
            background: var(--psn-green);
        }

        .psn-visual-card {
            position: relative;
            z-index: 2;
            width: min(100%, 360px);
            padding: 27px;
            border: 1px solid var(--psn-blue-border);
            border-radius: 28px;
            background: rgba(255, 255, 255, .94);
            box-shadow: var(--psn-shadow);
        }

        .psn-visual-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 26px;
        }

        .psn-visual-title {
            color: var(--psn-muted);
            font-size: .78rem;
            font-weight: 800;
        }

        .psn-visual-code {
            color: var(--psn-blue);
            font-size: .75rem;
            font-weight: 900;
            direction: ltr;
        }

        .psn-ring {
            position: relative;
            width: 168px;
            height: 168px;
            margin: 0 auto 25px;
            border: 13px solid #EDF1FF;
            border-top-color: var(--psn-blue);
            border-right-color: var(--psn-blue);
            border-radius: 50%;
            transform: rotate(-30deg);
        }

        .psn-ring-center {
            position: absolute;
            inset: 0;
            display: grid;
            place-items: center;
            transform: rotate(30deg);
            text-align: center;
        }

        .psn-ring-center strong {
            display: block;
            color: var(--psn-text);
            font-size: 1.35rem;
            font-weight: 900;
        }

        .psn-ring-center small {
            display: block;
            margin-top: 4px;
            color: var(--psn-muted);
            font-size: .75rem;
        }

        .psn-visual-progress {
            height: 7px;
            overflow: hidden;
            border-radius: 999px;
            background: #EEF1F6;
        }

        .psn-visual-progress span {
            display: block;
            width: 78%;
            height: 100%;
            border-radius: inherit;
            background: linear-gradient(90deg, var(--psn-blue), #5666FF);
        }

        .psn-visual-caption {
            margin: 18px 0 0;
            color: var(--psn-muted);
            text-align: center;
            font-size: .83rem;
            line-height: 1.9;
        }

        /* Information cards */
        .psn-info-strip {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            padding-bottom: 36px;
        }

        .psn-info-card {
            padding: 22px;
            border: 1px solid var(--psn-border);
            border-radius: 20px;
            background: #FFFFFF;
            box-shadow: 0 12px 30px rgba(16, 24, 40, .045);
        }

        .psn-info-number {
            color: var(--psn-blue);
            font-size: 1.6rem;
            font-weight: 900;
        }

        .psn-info-card h2 {
            margin: 10px 0 7px;
            font-size: .98rem;
        }

        .psn-info-card p {
            margin: 0;
            color: var(--psn-muted);
            font-size: .82rem;
            line-height: 1.9;
        }

        /* Footer */
        .psn-footer {
            position: relative;
            z-index: 1;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 20px;
            padding: 22px 0 30px;
            border-top: 1px solid var(--psn-border);
            color: var(--psn-muted);
            font-size: .78rem;
        }

        .psn-footer p {
            margin: 0;
        }

        .psn-footer strong {
            color: var(--psn-text);
        }

        @media (max-width: 900px) {
            .psn-hero {
                grid-template-columns: 1fr;
                padding-top: 34px;
            }

            .psn-hero-content {
                max-width: none;
            }

            .psn-visual {
                min-height: 350px;
            }
        }

        @media (max-width: 640px) {
            .psn-container {
                width: min(100% - 28px, 1180px);
            }

            .psn-header {
                padding: 18px 0;
            }

            .psn-header-label {
                display: none;
            }

            .psn-brand-mark {
                width: 44px;
                height: 44px;
                border-radius: 13px;
            }

            .psn-hero h1 {
                font-size: 2rem;
                letter-spacing: 0;
            }

            .psn-hero-text {
                font-size: .92rem;
                line-height: 2.1;
            }

            .psn-hero-actions {
                display: grid;
                grid-template-columns: 1fr;
            }

            .psn-button {
                width: 100%;
            }

            .psn-info-strip {
                grid-template-columns: 1fr;
            }

            .psn-footer {
                flex-direction: column;
                align-items: flex-start;
            }

            .psn-visual-orbit {
                width: 280px;
                height: 280px;
            }

            .psn-visual-card {
                width: min(100%, 330px);
            }
        }

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

            * {
                transition: none !important;
            }
        }