/* Portfolio section (home) */
/* ==============================
   DaiTech Portfolio Section
================================ */

.dt-portfolio,
.dt-portfolio * {
    box-sizing: border-box;
}

.dt-portfolio {
    --blue: #168bff;
    --cyan: #00d4e8;
    --bg: #080f1d;
    --card: #101b2c;
    --text: #f4f7fc;
    --muted: #aab8cb;

    width: 100%;
    padding: 75px 22px;
    direction: rtl;
    font-family: "B Nazanin", Tahoma, sans-serif;
    color: var(--text);
    background:
        radial-gradient(ellipse at 50% 0%, rgba(22,139,255,.10), transparent 55%),
        var(--bg);
}

.dt-portfolio .dt-container {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
}

/* Header */

.dt-portfolio .dt-heading {
    max-width: 700px;
    margin: 0 auto 45px;
    text-align: center;
}

.dt-portfolio .dt-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    margin-bottom: 13px;
    padding: 7px 15px;
    border: 1px solid rgba(0,212,232,.25);
    border-radius: 30px;
    color: var(--cyan);
    background: rgba(0,212,232,.06);
    font-size: 17px;
}

.dt-portfolio .dt-eyebrow::before {
    content: "";
    width: 7px;
    height: 7px;
    background: var(--cyan);
    border-radius: 50%;
    box-shadow: 0 0 12px var(--cyan);
}

.dt-portfolio .dt-heading h2 {
    margin: 0 0 13px;
    color: var(--text);
    font-size: clamp(30px, 4vw, 43px);
    font-weight: bold;
    line-height: 1.5;
}

.dt-portfolio .dt-heading h2 span {
    color: var(--blue);
}

.dt-portfolio .dt-heading p {
    margin: 0;
    color: var(--muted);
    font-size: 19px;
    line-height: 1.9;
}

/* Grid */

.dt-portfolio .dt-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 23px;
    align-items: stretch;
}

/* Project Card */

.dt-portfolio .dt-card {
    min-width: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,.08);
    border-radius: 17px;
    background: linear-gradient(160deg, #122137, #0d1727);
    transition:
        transform .3s ease,
        border-color .3s ease,
        box-shadow .3s ease;
}

.dt-portfolio .dt-card:hover {
    transform: translateY(-7px);
    border-color: rgba(22,139,255,.65);
    box-shadow: 0 18px 40px rgba(0,0,0,.28);
}

/* Image */

.dt-portfolio .dt-image {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 11;
    overflow: hidden;
    background: #172940;
}

.dt-portfolio .dt-image::after {
    content: "";
    position: absolute;
    inset: 45% 0 0;
    pointer-events: none;
    background: linear-gradient(transparent, rgba(8,15,29,.4));
}

.dt-portfolio .dt-image img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .55s ease;
}

.dt-portfolio .dt-card:hover .dt-image img {
    transform: scale(1.06);
}

/* Image number */

.dt-portfolio .dt-number {
    position: absolute;
    z-index: 1;
    top: 13px;
    right: 13px;
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border: 1px solid rgba(255,255,255,.2);
    border-radius: 10px;
    color: #fff;
    background: rgba(8,15,29,.78);
    font-family: Tahoma, sans-serif;
    font-size: 13px;
    backdrop-filter: blur(8px);
}

/* Card content */

.dt-portfolio .dt-info {
    display: flex;
    flex: 1;
    flex-direction: column;
    align-items: flex-start;
    padding: 22px;
}

.dt-portfolio .dt-category {
    display: inline-block;
    margin-bottom: 10px;
    color: var(--cyan);
    font-size: 16px;
}

.dt-portfolio .dt-info h3 {
    margin: 0 0 10px;
    color: var(--text);
    font-size: 23px;
    font-weight: bold;
    line-height: 1.6;
}

.dt-portfolio .dt-info p {
    margin: 0;
    color: var(--muted);
    font-size: 18px;
    line-height: 1.9;
}

/* Button */

.dt-portfolio .dt-button {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    width: 100%;
    margin-top: auto;
    padding: 12px 15px;
    margin-top: 23px;
    border: 1px solid rgba(22,139,255,.35);
    border-radius: 10px;
    color: #fff;
    background: rgba(22,139,255,.09);
    text-decoration: none;
    font-family: inherit;
    font-size: 18px;
    font-weight: bold;
    transition:
        background .3s ease,
        border-color .3s ease,
        transform .3s ease;
}

.dt-portfolio .dt-button .dt-arrow {
    display: grid;
    place-items: center;
    flex-shrink: 0;
    width: 29px;
    height: 29px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--blue), var(--cyan));
    color: #fff;
    font-family: Tahoma, sans-serif;
    transition: transform .3s ease;
}

.dt-portfolio .dt-button:hover {
    color: #fff;
    background: linear-gradient(110deg, #087cf0, #087fc9);
    border-color: transparent;
    transform: translateY(-2px);
}

.dt-portfolio .dt-button:hover .dt-arrow {
    transform: translateX(-3px);
}

.dt-portfolio .dt-button:focus-visible {
    outline: 2px solid var(--cyan);
    outline-offset: 4px;
}

/* Tablet */

@media (max-width: 1050px) {
    .dt-portfolio .dt-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 22px;
    }

    .dt-portfolio .dt-image {
        aspect-ratio: 16 / 9;
    }
}

/* Mobile */

@media (max-width: 560px) {
    .dt-portfolio {
        padding: 48px 15px;
    }

    .dt-portfolio .dt-heading {
        margin-bottom: 28px;
    }

    .dt-portfolio .dt-heading p {
        font-size: 18px;
    }

    .dt-portfolio .dt-grid {
        grid-template-columns: 1fr;
        gap: 19px;
        max-width: 430px;
        margin: 0 auto;
    }

    .dt-portfolio .dt-image {
        aspect-ratio: 16 / 9;
    }

    .dt-portfolio .dt-info {
        padding: 20px;
    }
}

/* Respect reduced motion preferences */

@media (prefers-reduced-motion: reduce) {
    .dt-portfolio *,
    .dt-portfolio *::before,
    .dt-portfolio *::after {
        transition-duration: .01ms !important;
        animation-duration: .01ms !important;
    }
}