/* =========================================================
   ForUs Project Preview
   ========================================================= */

.for-us {
    width: 100%;
    padding: 70px 0;
    position: relative;
    direction: rtl;
}

.for-us-container-bg {
    width: 90%;
    min-height: 560px;
    margin: 0 auto;
    padding: 15px;

    background-color: var(--color-for-us-container-bg-blur);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);

    border-radius: 40px;
    box-sizing: border-box;
}

.for-us-container {
    width: 100%;
    min-height: 530px;
    padding: clamp(32px, 6vw, 80px);
    padding-right: 0;

    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, 0.75fr);
    align-items: center;
    /* gap: clamp(45px, 8vw, 120px); */

    position: relative;
    overflow: hidden;
    box-sizing: border-box;
    border-radius: 30px;

}

/* ---------- محتوای اصلی ---------- */

.fu-content {
    width: 100%;
    max-width: 680px;
    color: var(--color-text-primary);
    position: relative;
    z-index: 2;
}

.fu-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;

    margin-bottom: 16px;
    color: var(--color-site);

    font-size: 0.86rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.fu-eyebrow::before {
    content: "";
    width: 28px;
    height: 2px;
    background-color: currentColor;
    border-radius: 999px;
}

.fu-title {
    margin: 0 0 18px;

    color: var(--color-text-primary);
    font-size: clamp(2rem, 4vw, 3.4rem);
    font-weight: 800;
    line-height: 1.25;
    letter-spacing: -0.04em;
}

.fu-description {
    max-width: 620px;
    margin: 0;

    color: var(--color-text-secondary);
    font-size: clamp(0.95rem, 1.3vw, 1.08rem);
    line-height: 2;
}

/* ---------- اطلاعات کوتاه پروژه ---------- */

.fu-meta {
    display: flex;
    align-items: stretch;
    gap: 0;

    margin-top: 34px;
}

.fu-meta-item {
    min-width: 130px;
    padding-inline: 24px;

    display: flex;
    flex-direction: column;
    gap: 5px;
}

.fu-meta-item:first-child {
    padding-inline-start: 0;
}

.fu-meta-item:not(:last-child) {
    border-inline-end: 1px solid var(--color-fu-border);
}

.fu-meta-item strong {
    color: var(--color-text-primary);
    font-size: 1.15rem;
    font-weight: 800;
    line-height: 1.4;
}

.fu-meta-item span {
    color: var(--color-text-secondary);
    font-size: 0.78rem;
    white-space: nowrap;
}

/* ---------- تکنولوژی‌ها ---------- */

.fu-stack {
    margin: 27px 0 0;

    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;

    color: var(--color-text-secondary);
    font-size: 0.8rem;
    direction: ltr;
}

.fu-stack span {
    color: var(--color-site);
    opacity: 0.65;
}

/* ---------- دکمه‌ها ---------- */

.fu-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;

    margin-top: 36px;
}

.fu-primary-btn {
    min-height: 48px;
    padding: 0 25px;

    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 11px;

    background-color: var(--color-site);
    color: #fff;

    border-radius: 999px;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 700;

    transition:
        transform 0.25s ease,
        box-shadow 0.25s ease;
}

.fu-primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(17, 155, 218, 0.28);
}

.fu-arrow {
    font-size: 1.15rem;
    line-height: 1;
    transition: transform 0.25s ease;
    display: none;
}

.fu-primary-btn:hover .fu-arrow {
    transform: translateX(-4px);
}

.fu-secondary-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;

    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 600;

    transition: color 0.25s ease;
}

.fu-secondary-link:hover {
    color: var(--color-site);
}

.fu-external-icon {
    width: 16px;
    height: 16px;

    display: inline-block;
    flex-shrink: 0;

    background-color: currentColor;
    -webkit-mask: url("/assets/svg/external-link.svg") no-repeat center / contain;
    mask: url("/assets/svg/external-link.svg") no-repeat center / contain;
}

/* ---------- بخش تصویری ---------- */

.fu-visual {
    min-height: 340px;

    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;

    position: relative;
    isolation: isolate;
}

.fu-visual-glow {
    width: clamp(230px, 27vw, 360px);
    aspect-ratio: 1;

    position: absolute;
    inset: 50% auto auto 50%;
    transform: translate(-50%, -50%);

    background:
        radial-gradient(
            circle,
            rgba(17, 155, 218, 0.2) 0%,
            rgba(17, 155, 218, 0.08) 42%,
            transparent 70%
        );

    filter: blur(5px);
    border-radius: 50%;
    z-index: -1;
    pointer-events: none;
}

.fu-logo-box {
    width: clamp(185px, 20vw, 260px);
    aspect-ratio: 1;

    display: flex;
    align-items: center;
    justify-content: center;

    position: relative;
}

.fu-logo {
    width: 100%;
    height: auto;
    display: block;

    border-radius: 24px;
    filter: drop-shadow(0 24px 40px rgba(0, 0, 0, 0.14));

    transition:
        transform 0.5s cubic-bezier(0.22, 1, 0.36, 1),
        filter 0.5s ease;
}

.fu-visual:hover .fu-logo {
    transform: translateY(-7px) scale(1.02);
    filter: drop-shadow(0 30px 48px rgba(0, 0, 0, 0.18));
}

.fu-visual-label {
    margin-top: 22px;

    color: var(--color-text-secondary);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    direction: ltr;
}

/* ---------- حالت فوکوس ---------- */

.fu-primary-btn:focus-visible,
.fu-secondary-link:focus-visible {
    outline: 3px solid rgba(17, 155, 218, 0.35);
    outline-offset: 4px;
}

/* ---------- تبلت ---------- */

@media (max-width: 900px) {
    .for-us {
        padding: 50px 0;
    }

    .for-us-container {
        grid-template-columns: 1fr;
        gap: 30px;
        padding: 45px 35px 55px;
    }

    .fu-content {
        max-width: 100%;
        text-align: center;
        order: 2;
    }

    .fu-visual {
        min-height: auto;
        order: 1;
    }

    .fu-visual-glow {
        width: 290px;
    }

    .fu-logo-box {
        width: 190px;
    }

    .fu-eyebrow,
    .fu-meta,
    .fu-stack,
    .fu-actions {
        justify-content: center;
    }

    .fu-description {
        margin-inline: auto;
    }
}

/* ---------- موبایل ---------- */

@media (max-width: 600px) {
    .for-us {
        padding: 35px 0;
    }

    .for-us-container-bg {
        width: calc(100% - 28px);
        min-height: auto;
        padding: 8px;
        border-radius: 28px;
    }

    .for-us-container {
        min-height: auto;
        padding: 38px 20px 42px;
        gap: 25px;
        border-radius: 22px;
    }

    .fu-logo-box {
        width: 150px;
    }

    .fu-visual-label {
        margin-top: 14px;
        font-size: 0.64rem;
    }

    .fu-title {
        margin-bottom: 14px;
    }

    .fu-description {
        font-size: 0.9rem;
        line-height: 1.9;
    }

    .fu-meta {
        width: 100%;
        margin-top: 28px;
    }

    .fu-meta-item {
        min-width: 0;
        flex: 1;
        padding-inline: 10px;
    }

    .fu-meta-item:first-child {
        padding-inline-start: 10px;
    }

    .fu-meta-item strong {
        font-size: 0.95rem;
    }

    .fu-meta-item span {
        font-size: 0.68rem;
        white-space: normal;
        line-height: 1.6;
    }

    .fu-stack {
        max-width: 280px;
        margin-inline: auto;
        margin-top: 24px;
        line-height: 1.8;
    }

    .fu-actions {
        flex-direction: column;
        gap: 18px;
        margin-top: 30px;
    }

    .fu-primary-btn {
        width: 100%;
        max-width: 280px;
        box-sizing: border-box;
    }
}

/* ---------- کاهش انیمیشن ---------- */

@media (prefers-reduced-motion: reduce) {
    .fu-logo,
    .fu-primary-btn,
    .fu-arrow,
    .fu-secondary-link {
        transition: none;
    }
}