:root {
    --bg: #0b1620;
    --bg2: #0e1d29;
    --card: rgba(255, 255, 255, .05);
    --border: rgba(255, 255, 255, .12);
    --text: #e8edf2;
    --muted: #a5b3bf;
    --gold: #d3b26f;
    --gold-2: #c49b43;
    --accent: #2aa8ff;
    --success: #45d39c;
    --warning: #ffb84d;
    --danger: #ff6b6b;
    --shadow: 0 10px 30px rgba(0, 0, 0, .35);
    --radius: 16px;
}

* {
    box-sizing: border-box
}

html,
body {
    background: linear-gradient(180deg, var(--bg), var(--bg2));
    color: var(--text);
    margin: 0;
    padding: 0;
    font-family: "IRANSans", "Vazirmatn", "Tahoma", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
    line-height: 1.75;
}

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

    a:hover {
        opacity: .9
    }

header {
    position: sticky;
    top: 0;
    backdrop-filter: blur(8px);
    background: linear-gradient(180deg, rgba(13, 22, 31, .9), rgba(13, 22, 31, .6));
    border-bottom: 1px solid var(--border);
    z-index: 10;
}

.nav {
    display: flex;
    align-items: center;
    gap: 20px;
    justify-content: space-between
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 800;
    letter-spacing: .5px
}

    .brand .logo {
        width: 36px;
        height: 36px;
        border-radius: 50%;
        display: grid;
        place-items: center;
        background: radial-gradient(circle at 30% 30%, #f9e3a3, #e0b766 60%, #9b6b2e 90%);
        box-shadow: inset 0 0 0 2px rgba(0, 0, 0, .25), 0 0 0 4px rgba(212, 178, 111, .08);
    }

        .brand .logo svg {
            width: 22px;
            height: 22px;
            fill: #1a2430
        }

    .brand span {
        font-size: 18px
    }

.custom-btn  {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 18px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, .04);
    color: var(--text);
    font-weight: 700
}

    .custom-btn.gold {
        background: linear-gradient(180deg, var(--gold), var(--gold-2));
        border-color: rgba(0, 0, 0, .18);
        color: #1e2430
    }

    .custom-btn.ghost {
        background: transparent
    }

.hero {
    padding: 56px 0 32px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 18px
}

    .hero h1 {
        font-size: clamp(28px, 3.4vw, 44px);
        margin: 0 0 8px;
        font-weight: 900;
        letter-spacing: .3px
    }

    .hero p {
        color: var(--muted);
        margin: 0 0 16px
    }

    .hero .stats {
        display: flex;
        flex-wrap: wrap;
        gap: 10px
    }

.chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 99px;
    background: rgba(255, 255, 255, .06);
    border: 1px solid var(--border);
    font-size: 14px;
    color: #dce6ee
}

    .chip svg {
        opacity: .9
    }

section.card {
    background: linear-gradient(180deg, rgba(255, 255, 255, .04), rgba(255, 255, 255, .02));
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 20px;
    box-shadow: var(--shadow);
    margin-block: 18px
}

.grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px
}

.feature {
    background: rgba(255, 255, 255, .03);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 16px
}

    .feature h3 {
        margin: 8px 0;
        font-size: 18px
    }

    .feature p {
        margin: 0;
        color: var(--muted)
    }

    .feature .ic {
        width: 28px;
        height: 28px;
        display: inline-grid;
        place-items: center;
        border-radius: 8px;
        background: rgba(211, 178, 111, .18);
        border: 1px solid rgba(211, 178, 111, .35)
    }

.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin-top: 10px
}

.step {
    background: rgba(255, 255, 255, .03);
    border: 1px dashed var(--border);
    border-radius: 14px;
    padding: 16px;
    position: relative
}

    .step .num {
        position: absolute;
        left: 14px;
        top: 12px;
        background: var(--gold);
        color: #1e2430;
        border-radius: 50%;
        width: 28px;
        height: 28px;
        display: grid;
        place-items: center;
        font-weight: 800
    }

.cta {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 10px
}

details {
    background: rgba(255, 255, 255, .03);
    border: 1px solid var(--border);
    border-radius: 12px;
    margin: 8px 0;
    padding: 10px 14px
}

summary {
    cursor: pointer;
    font-weight: 800
}

    summary::-webkit-details-marker {
        display: none
    }

footer {
    border-top: 1px solid var(--border);
    margin-top: 26px;
    padding: 18px 0;
    color: var(--muted);
    font-size: 14px
}

@media (max-width:900px) {
    .grid {
        grid-template-columns: 1fr 1fr
    }

    .steps {
        grid-template-columns: 1fr
    }
}

@media (max-width:600px) {
    .nav .btn {
        padding: 10px 12px
    }

    .grid {
        grid-template-columns: 1fr
    }
}