/**
 * Frontend styles for Heaven Softtech Portfolio (Phases 2 & 3)
 */

/* ==========================================================================
   Portfolio Archive & Card Styles
   ========================================================================== */

.project-thumb-link {
    display: block;
    text-decoration: none;
    color: inherit;
    position: relative;
    overflow: hidden;
}

.project-thumb-fallback {
    width: 100%;
    height: 100%;
    display: grid;
    place-items: center;
    background: var(--navy, #071a3d);
    color: rgba(255, 255, 255, 0.35);
}

.project-body h3 a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s var(--ease, ease);
}

.project-body h3 a:hover {
    color: var(--blue, #0f4cff);
}

.project-tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin: 10px 0 14px;
}

.project-tech-tag {
    display: inline-block;
    padding: 3px 8px;
    background: var(--paper, #f6f8fc);
    border: 1px solid var(--line, #e4eaf3);
    border-radius: 4px;
    color: var(--muted, #64748b);
    font: 500 0.68rem var(--mono, monospace);
    letter-spacing: -0.01em;
    line-height: 1.3;
}

.hs-portfolio-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    background: var(--paper, #f6f8fc);
    border: 1px dashed var(--line, #e4eaf3);
    border-radius: 12px;
}

.hs-portfolio-empty p {
    font-size: 1.05rem;
    color: var(--muted, #64748b);
    margin: 0;
}

/* ==========================================================================
   Single Case Study - Hero Section
   ========================================================================== */

.hs-case-hero {
    position: relative;
    overflow: hidden;
    padding: 100px 0 76px;
    color: #fff;
    background: var(--navy, #071a3d);
}

.hs-case-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 85% 20%, rgba(15, 76, 255, 0.32), transparent 32%),
                radial-gradient(circle at 95% 95%, rgba(230, 57, 70, 0.18), transparent 26%);
    pointer-events: none;
}

.hs-case-hero .container {
    position: relative;
    z-index: 1;
}

.hs-case-hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
    gap: 60px;
    align-items: center;
    padding-top: 40px;
}

.hs-case-hero-copy h1 {
    font-size: clamp(1.75rem, 2.8vw, 2.35rem);
    line-height: 1.22;
    letter-spacing: -0.03em;
    margin: 14px 0 16px;
    color: #fff;
}

.hs-case-lead {
    font-size: 1.05rem;
    color: rgba(255, 255, 255, 0.72);
    line-height: 1.65;
    max-width: 580px;
    margin-bottom: 24px;
}

.hs-case-hero-techs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 22px;
}

.hs-case-hero-tech {
    display: inline-block;
    padding: 5px 12px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 6px;
    color: rgba(255, 255, 255, 0.85);
    font: 500 0.72rem var(--mono, monospace);
    letter-spacing: 0.02em;
}

.hs-case-quick-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 8px;
}

.hs-meta-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 9999px;
    font-size: 0.78rem;
    color: rgba(255, 255, 255, 0.85);
}

.hs-meta-pill strong {
    color: #90b0ff;
    font-weight: 700;
}

.hs-case-hero-media {
    border-radius: 18px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.16);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.28);
    background: var(--navy, #071a3d);
    aspect-ratio: 1.35;
}

.hs-case-hero-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* ==========================================================================
   Single Case Study - Body & Layout
   ========================================================================== */

.hs-case-body-section {
    background: var(--paper, #f6f8fc);
    padding: 80px 0;
}

.hs-case-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 60px;
    align-items: start;
}

.hs-case-prose {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.hs-case-block {
    padding: 40px;
    background: #fff;
    border: 1px solid var(--line, #e4eaf3);
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(7, 26, 61, 0.04);
}

.hs-case-section-tag {
    display: inline-block;
    padding: 4px 10px;
    background: #edf2ff;
    border-radius: 6px;
    color: var(--blue, #0f4cff);
    font: 700 0.68rem var(--mono, monospace);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 14px;
}

.hs-case-block h2 {
    font-size: clamp(1.4rem, 2.2vw, 1.85rem);
    letter-spacing: -0.03em;
    color: var(--ink, #0f172a);
    margin-bottom: 18px;
    line-height: 1.25;
}

.hs-case-text {
    font-size: 0.94rem;
    line-height: 1.8;
    color: var(--muted, #64748b);
}

.hs-case-text p {
    margin-bottom: 16px;
}

.hs-case-text p:last-child {
    margin-bottom: 0;
}

.hs-case-results-block {
    border-left: 4px solid var(--green, #20b486);
}

/* ==========================================================================
   Single Case Study - Gallery Grid & Lightbox
   ========================================================================== */

.hs-case-gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
    margin-top: 20px;
}

.hs-gallery-lightbox-trigger {
    position: relative;
    display: block;
    aspect-ratio: 1.35;
    border-radius: 12px;
    overflow: hidden;
    background: var(--navy, #071a3d);
    border: 1px solid var(--line, #e4eaf3);
    cursor: zoom-in;
    text-decoration: none;
}

.hs-gallery-lightbox-trigger img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s var(--ease, ease);
    display: block;
}

.hs-gallery-lightbox-trigger:hover img {
    transform: scale(1.06);
}

.hs-gallery-zoom-icon {
    position: absolute;
    right: 10px;
    bottom: 10px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(7, 26, 61, 0.85);
    color: #fff;
    display: grid;
    place-items: center;
    font-size: 0.85rem;
    opacity: 0;
    transform: translateY(4px);
    transition: all 0.25s var(--ease, ease);
}

.hs-gallery-lightbox-trigger:hover .hs-gallery-zoom-icon {
    opacity: 1;
    transform: translateY(0);
}

/* Lightbox Modal */
.hs-lightbox {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: grid;
    place-items: center;
    padding: 24px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
}

.hs-lightbox.active {
    opacity: 1;
    visibility: visible;
}

.hs-lightbox-overlay {
    position: absolute;
    inset: 0;
    background: rgba(4, 15, 38, 0.88);
    backdrop-filter: blur(8px);
}

.hs-lightbox-content {
    position: relative;
    z-index: 2;
    max-width: min(92vw, 1100px);
    max-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hs-lightbox-image {
    max-width: 100%;
    max-height: 85vh;
    object-fit: contain;
    border-radius: 12px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
    display: block;
}

.hs-lightbox-close {
    position: absolute;
    top: -46px;
    right: 0;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    font-size: 20px;
    cursor: pointer;
    display: grid;
    place-items: center;
    transition: background 0.2s, transform 0.2s;
}

.hs-lightbox-close:hover {
    background: var(--red, #e63946);
    transform: scale(1.08);
}

/* ==========================================================================
   Single Case Study - Sidebar Info Panel
   ========================================================================== */

.hs-case-sidebar {
    position: sticky;
    top: 96px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.hs-case-card {
    padding: 30px;
    background: #fff;
    border: 1px solid var(--line, #e4eaf3);
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(7, 26, 61, 0.04);
}

.hs-case-card h3 {
    font-size: 1.22rem;
    letter-spacing: -0.03em;
    color: var(--ink, #0f172a);
    margin-bottom: 20px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--line, #e4eaf3);
}

.hs-info-list {
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.hs-info-list dt {
    font: 700 0.72rem var(--mono, monospace);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--muted, #64748b);
    margin-bottom: 3px;
}

.hs-info-list dd {
    margin: 0;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ink, #0f172a);
}

.hs-info-techs {
    margin-top: 22px;
    padding-top: 18px;
    border-top: 1px solid var(--line, #e4eaf3);
}

.hs-info-tech-label {
    display: block;
    font: 700 0.72rem var(--mono, monospace);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--muted, #64748b);
    margin-bottom: 10px;
}

.hs-tech-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.hs-tech-badge {
    display: inline-block;
    padding: 4px 10px;
    background: var(--paper, #f6f8fc);
    border: 1px solid var(--line, #e4eaf3);
    border-radius: 6px;
    color: var(--ink, #0f172a);
    font: 600 0.72rem var(--mono, monospace);
}

.hs-info-cta {
    margin-top: 24px;
    padding-top: 18px;
    border-top: 1px solid var(--line, #e4eaf3);
}

.hs-btn-live {
    width: 100%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 12px 18px;
    font-size: 0.86rem;
    border-radius: 8px;
}

.hs-case-quote-box {
    background: #edf2ff;
    border-color: #dce5f5;
}

.hs-case-quote-box strong {
    display: block;
    font-size: 1.22rem;
    letter-spacing: -0.03em;
    color: var(--ink, #0f172a);
    margin: 12px 0 8px;
    line-height: 1.28;
}

.hs-case-quote-box p {
    font-size: 0.84rem;
    color: var(--muted, #64748b);
    line-height: 1.6;
    margin-bottom: 20px;
}

/* ==========================================================================
   Single Case Study - Related Projects & Navigation
   ========================================================================== */

.hs-related-section {
    background: #fff;
    padding: 80px 0;
    border-top: 1px solid var(--line, #e4eaf3);
}

.hs-related-heading {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 36px;
}

.hs-related-heading h2 {
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    letter-spacing: -0.04em;
    color: var(--ink, #0f172a);
}

.hs-case-nav-section {
    background: var(--paper, #f6f8fc);
    padding: 40px 0;
    border-top: 1px solid var(--line, #e4eaf3);
}

.hs-case-nav-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.hs-case-nav-card {
    padding: 24px;
    background: #fff;
    border: 1px solid var(--line, #e4eaf3);
    border-radius: 14px;
    text-decoration: none;
    color: inherit;
    transition: transform 0.25s var(--ease, ease), border-color 0.25s var(--ease, ease), box-shadow 0.25s var(--ease, ease);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.hs-case-nav-card:hover {
    transform: translateY(-3px);
    border-color: var(--blue, #0f4cff);
    box-shadow: 0 12px 30px rgba(7, 26, 61, 0.08);
}

.hs-case-nav-card.next {
    text-align: right;
}

.hs-nav-arrow {
    font: 700 0.72rem var(--mono, monospace);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--blue, #0f4cff);
}

.hs-case-nav-card h3 {
    font-size: 1.08rem;
    margin: 0;
    color: var(--ink, #0f172a);
    line-height: 1.3;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */

@media (max-width: 1024px) {
    .hs-case-hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hs-case-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hs-case-sidebar {
        position: static;
    }
}

@media (max-width: 768px) {
    .hs-case-hero {
        padding: 80px 0 50px;
    }

    .hs-case-hero-copy h1 {
        font-size: clamp(1.5rem, 6.5vw, 1.95rem);
        line-height: 1.25;
    }

    .hs-case-block {
        padding: 24px;
    }

    .hs-case-gallery-grid {
        grid-template-columns: 1fr 1fr;
    }

    .hs-case-nav-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .hs-case-nav-card.next {
        text-align: left;
    }
}

@media (max-width: 480px) {
    .hs-case-gallery-grid {
        grid-template-columns: 1fr;
    }
}