/* =========================================================
   Projects Slider Pro — Frontend Styles
   Author: TuTran (vncodex.com)
   ========================================================= */

/* ── Reset & base ── */
.psp-hero *,
.psp-hero *::before,
.psp-hero *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* ── Hero wrapper ── */
.psp-hero {
    position: relative;
    width: 100%;
    height: 580px;
    overflow: hidden;
    font-family: 'Be Vietnam Pro', 'Segoe UI', Arial, sans-serif;
    background: #030d1e;
    --psp-left-col: 300px;
    --psp-gap: 16px;
    --psp-peek: 80px;
    --psp-card-w: 270px;
    --psp-card-h: 370px;
    --psp-accent: #27ae60;
    --psp-transition-bg: 0.72s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Background layers ── */
.psp-bg-wrap {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.psp-bg-layer {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity var(--psp-transition-bg);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    filter: brightness(0.42);
}
.psp-bg-layer.active { opacity: 1; }

.psp-bg-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        90deg,
        rgba(3, 12, 30, 0.85) 0%,
        rgba(3, 12, 30, 0.30) 55%,
        rgba(3, 12, 30, 0.08) 100%
    );
}

/* ── Left title ── */
.psp-hero-title {
    position: absolute;
    left: 56px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    width: calc(var(--psp-left-col) - 56px);
}

.psp-heading {
    font-family: 'Barlow Condensed', 'Arial Narrow', Arial, sans-serif;
    font-size: 2.5rem;
    font-weight: 800;
    color: #fff;
    line-height: 1.1;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.psp-desc {
    margin: 12px 0 0;
    color: #fff;
    font-size: 1rem;
    line-height: 1.45;
    font-weight: 400;
}

/* ── Slider section — right side ── */
.psp-slider-section {
    position: absolute;
    top: 0;
    bottom: 0;
    left: var(--psp-left-col);
    right: 0;
    z-index: 5;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.psp-slider-viewport {
    width: 100%;
    overflow: visible;
    padding: 30px 0;
}

.psp-slider-track {
    display: flex;
    gap: var(--psp-gap);
    will-change: transform;
}

/* ── Card ── */
.psp-slide-card {
    flex-shrink: 0;
    width: var(--psp-card-w);
    height: var(--psp-card-h);
    border-radius: 10px;
    overflow: hidden;
    position: relative;
    cursor: pointer;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
    background: #0d1f3c;
}

.psp-slide-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 18px 52px rgba(0, 0, 0, 0.58);
}

.psp-slide-card > img,
.psp-no-thumb {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}
.psp-no-thumb { background: #0d1f3c; }

.psp-slide-card:hover > img { transform: scale(1.06); }

/* Card overlay */
.psp-card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(10, 30, 70, 0.06) 40%,
        rgba(4, 16, 48, 0.93) 100%
    );
    transition: background 0.4s ease;
}

.psp-slide-card.is-active .psp-card-overlay {
    background: linear-gradient(
        180deg,
        rgba(10, 30, 70, 0.04) 20%,
        rgba(3, 14, 46, 0.96) 100%
    );
}

/* Card content */
.psp-card-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 24px 20px 22px;
    z-index: 2;
}

.psp-card-title {
    font-family: 'Barlow Condensed', 'Arial Narrow', Arial, sans-serif;
    font-size: 1rem;
    font-weight: 700;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    line-height: 1.25;
    margin-bottom: 6px;
}

.psp-card-desc {
    font-size: 0.78rem;
    color: rgba(255, 255, 255, 0.72);
    line-height: 1.45;
    margin-bottom: 14px;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.4s ease, opacity 0.38s ease;
}

.psp-slide-card.is-active .psp-card-desc {
    max-height: 72px;
    opacity: 1;
}

.psp-card-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.78rem;
    font-weight: 600;
    color: #fff;
    text-decoration: none;
    letter-spacing: 0.04em;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.4s ease, opacity 0.38s ease;
}

.psp-slide-card.is-active .psp-card-link {
    max-height: 44px;
    opacity: 1;
}

.psp-card-link:hover { color: #fff; }

.psp-arrow-btn {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--psp-accent);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s ease;
    flex-shrink: 0;
}

.psp-card-link:hover .psp-arrow-btn { transform: translateX(3px); }

.psp-arrow-btn svg {
    width: 13px;
    height: 13px;
    fill: none;
    stroke: #fff;
    stroke-width: 2.5;
}

/* ── Controls ── */
.psp-controls {
    position: absolute;
    bottom: 34px;
    left: calc(var(--psp-left-col) + 20px);
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 10px;
}

.psp-ctrl-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1.5px solid rgba(255, 255, 255, 0.38);
    background: rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.psp-ctrl-btn:hover {
    background: rgba(255, 255, 255, 0.18);
    border-color: rgba(255, 255, 255, 0.7);
}

.psp-ctrl-btn svg {
    width: 16px;
    height: 16px;
    fill: none;
    stroke: #fff;
    stroke-width: 2;
}

.psp-ctrl-line {
    width: 100px;
    height: 1.5px;
    background: rgba(255, 255, 255, 0.2);
    position: relative;
}

.psp-ctrl-line-fill {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 0;
    background: #fff;
    transition: width 0.55s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Counter ── */
.psp-slide-counter {
    position: absolute;
    bottom: 28px;
    right: 44px;
    z-index: 10;
    font-family: 'Barlow Condensed', 'Arial Narrow', Arial, sans-serif;
    font-size: 3.8rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.55);
    letter-spacing: -0.02em;
    line-height: 1;
    user-select: none;
}

.psp-cnt-zero { color: rgba(255, 255, 255, 0.2); }

/* ── No slides message ── */
.psp-no-slides {
    padding: 20px;
    color: #666;
    font-style: italic;
}

/* ── Responsive ── */
@media (max-width: 900px) {
    .psp-hero {
        --psp-left-col: 200px;
        height: 500px;
    }
    .psp-heading { font-size: 1.8rem; }
    .psp-hero-title { left: 24px; }
}

@media (max-width: 600px) {
    .psp-hero {
        --psp-left-col: 0px;
        height: 480px;
    }
    .psp-hero-title {
        left: 16px;
        top: 24px;
        transform: none;
        width: 60%;
    }
    .psp-heading { font-size: 1.4rem; }
    .psp-controls {
        left: 16px;
    }
    .psp-slide-counter { right: 16px; }
}