/* =========================================================
   MANSIUM — Projects Page
   Inherits design tokens from ../styles.css
   ========================================================= */


/* =========================================================
   1. BACK LINK (header)
   ========================================================= */

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0.55rem 1rem;
    font-family: var(--font-secondary);
    font-size: var(--fs-body-sm);
    font-weight: var(--fw-medium);
    color: var(--text-secondary);
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-pill);
    transition:
        color var(--dur-base) var(--ease-out),
        border-color var(--dur-base) var(--ease-out),
        transform var(--dur-base) var(--ease-out),
        box-shadow var(--dur-base) var(--ease-out);
}

.back-link svg {
    width: 16px;
    height: 16px;
    transition: transform var(--dur-base) var(--ease-out);
}

.back-link:hover {
    color: var(--text-primary);
    border-color: rgba(10, 110, 211, 0.32);
    box-shadow: var(--shadow-xs);
}

.back-link:hover svg {
    transform: translateX(-3px);
}

@media (max-width: 1024px) {
    .back-link span:not(.sr-only) { display: none; }
    .back-link { padding: 0.55rem; }
}

/* On mobile the overlay menu replaces header navigation entirely,
   so we hide the back-link to keep the bar minimal: logo + hamburger only. */
@media (max-width: 767px) {
    .site-header__actions > .back-link { display: none; }
}


/* =========================================================
   2. PROJECTS HERO
   ========================================================= */

.proj-hero {
    position: relative;
    padding-block: clamp(3rem, 6vw, 5rem) clamp(2.5rem, 5vw, 4rem);
    overflow: hidden;
    isolation: isolate;
}

.proj-hero__inner {
    position: relative;
    z-index: var(--z-content);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-4);
    max-width: 920px;
}

/* —— Breadcrumb —— */
.breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-secondary);
    font-size: var(--fs-caption);
    font-weight: var(--fw-medium);
    color: var(--text-muted);
    margin-bottom: var(--space-2);
}

.breadcrumb__link {
    color: var(--text-secondary);
    transition: color var(--dur-base) var(--ease-out);
}

.breadcrumb__link:hover { color: var(--brand-primary); }

.breadcrumb__sep { color: var(--text-muted); opacity: 0.6; }

.breadcrumb__current { color: var(--text-primary); font-weight: var(--fw-semibold); }

.proj-hero__title {
    font-size: clamp(2.25rem, 1.4rem + 3.4vw, 4rem);
    max-width: 18ch;
    text-align: left;
}

.proj-hero__lead {
    color: var(--text-secondary);
    max-width: 60ch;
    text-align: left;
}

/* —— Filter bar —— */
.proj-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: var(--space-4);
    padding: 6px;
    background: rgba(255, 255, 255, 0.78);
    border: 1px solid var(--border);
    border-radius: var(--radius-pill);
    backdrop-filter: blur(20px) saturate(160%);
    -webkit-backdrop-filter: blur(20px) saturate(160%);
    box-shadow: var(--shadow-xs);
}

.proj-filter {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0.55rem 1rem;
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-pill);
    font-family: var(--font-primary);
    font-size: var(--fs-body-sm);
    font-weight: var(--fw-medium);
    color: var(--text-secondary);
    transition:
        background-color var(--dur-base) var(--ease-out),
        color var(--dur-base) var(--ease-out),
        border-color var(--dur-base) var(--ease-out),
        box-shadow var(--dur-base) var(--ease-out);
}

.proj-filter:hover {
    color: var(--text-primary);
    background: rgba(10, 110, 211, 0.06);
}

.proj-filter.is-active {
    color: var(--white);
    background: var(--brand-black);
    border-color: var(--brand-black);
    box-shadow: 0 6px 18px rgba(0, 9, 25, 0.18);
}

.proj-filter__count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 22px;
    height: 22px;
    padding: 0 7px;
    background: rgba(0, 29, 63, 0.06);
    color: var(--text-muted);
    border-radius: var(--radius-pill);
    font-family: var(--font-secondary);
    font-size: var(--fs-micro);
    font-weight: var(--fw-semibold);
    font-variant-numeric: tabular-nums;
    transition:
        background-color var(--dur-base) var(--ease-out),
        color var(--dur-base) var(--ease-out);
}

.proj-filter.is-active .proj-filter__count {
    background: rgba(255, 255, 255, 0.18);
    color: var(--white);
}

/* =========================================================
   FILTER BAR — Tablet & Mobile responsive
   Apple-like horizontal pill rail: proportionate radius,
   refined tap-targets, edge-fade mask hinting horizontal
   scroll, hidden scrollbar.
   ========================================================= */

/* Tablet (≤ 1024) — keeps wrap/center layout, just tighter sizing */
@media (max-width: 1024px) {
    .proj-filters {
        flex-wrap: wrap;
        justify-content: center;
        padding: 5px;
        border-radius: 18px;
        gap: 6px;
    }

    .proj-filter {
        padding: 0.6rem 0.95rem;
        border-radius: 12px;
        font-size: 0.875rem;
        gap: 8px;
    }

    .proj-filter__count {
        min-width: 22px;
        height: 20px;
        padding: 0 7px;
        font-size: 0.6875rem;
        border-radius: 8px;
    }
}

/* Mobile (≤ 768) — premium horizontal scroll rail with edge fade */
@media (max-width: 768px) {

    /* The rail itself becomes a single horizontal track */
    .proj-filters {
        flex-wrap: nowrap;
        justify-content: flex-start;
        padding: 4px;
        gap: 4px;
        border-radius: 14px;
        margin-top: var(--space-3);

        /* Hide scrollbar but keep horizontal scrolling */
        overflow-x: auto;
        overflow-y: hidden;
        scrollbar-width: none;
        -ms-overflow-style: none;
        -webkit-overflow-scrolling: touch;
        scroll-snap-type: x proximity;

        /* Premium edge fade — hints scrollability without a scrollbar */
        -webkit-mask-image: linear-gradient(
            to right,
            transparent 0,
            black 20px,
            black calc(100% - 20px),
            transparent 100%
        );
                mask-image: linear-gradient(
            to right,
            transparent 0,
            black 20px,
            black calc(100% - 20px),
            transparent 100%
        );
    }

    .proj-filters::-webkit-scrollbar { display: none; }

    .proj-filter {
        flex: 0 0 auto;
        padding: 0.55rem 0.85rem;
        border-radius: 10px;
        font-size: 0.8125rem;
        font-weight: var(--fw-medium);
        line-height: 1.2;
        white-space: nowrap;
        scroll-snap-align: center;
        gap: 6px;
    }

    .proj-filter__count {
        min-width: 20px;
        height: 18px;
        padding: 0 6px;
        font-size: 0.625rem;
        border-radius: 6px;
    }

    .proj-filter.is-active {
        box-shadow: 0 4px 12px rgba(0, 9, 25, 0.16);
    }
}

/* Very small phones — squeeze a touch more */
@media (max-width: 380px) {
    .proj-filter {
        padding: 0.5rem 0.75rem;
        font-size: 0.75rem;
    }
}

/* —— Hero decor (geometric) —— */
.proj-hero__decor {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.proj-hero__halo {
    position: absolute;
    top: -20%;
    right: -10%;
    width: clamp(420px, 55vw, 720px);
    height: clamp(420px, 55vw, 720px);
    border-radius: 50%;
    background: radial-gradient(circle, rgba(10, 110, 211, 0.16) 0%, rgba(10, 110, 211, 0) 65%);
    filter: blur(40px);
}

.proj-hero__ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(4, 53, 106, 0.08);
}

.proj-hero__ring--a { top: -120px; right: -100px; width: 460px; height: 460px; }
.proj-hero__ring--b { top: -200px; right: -200px; width: 720px; height: 720px; border-color: rgba(4, 53, 106, 0.05); }

.proj-hero__line {
    position: absolute;
    background: linear-gradient(180deg, transparent, rgba(10, 110, 211, 0.32), transparent);
}

.proj-hero__line--v { top: 0; right: 22%; width: 1px; height: 200px; }
.proj-hero__line--h {
    bottom: 12%;
    left: 0;
    width: 200px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(10, 110, 211, 0.32), transparent);
}

.proj-hero__square,
.proj-hero__diamond {
    position: absolute;
    width: 56px;
    height: 56px;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}

.proj-hero__square {
    bottom: 18%;
    right: 8%;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(10, 110, 211, 0.18), rgba(10, 110, 211, 0.04));
    border: 1px solid rgba(10, 110, 211, 0.22);
    transform: rotate(-12deg);
}

.proj-hero__diamond {
    top: 14%;
    left: 6%;
    background: linear-gradient(135deg, rgba(0, 29, 63, 0.10), rgba(0, 29, 63, 0.02));
    border: 1px solid rgba(0, 29, 63, 0.14);
    transform: rotate(45deg);
}

@media (max-width: 720px) {
    .proj-hero__square,
    .proj-hero__diamond { width: 40px; height: 40px; }
    .proj-hero__line--v { height: 120px; }
    .proj-hero__line--h { width: 120px; }
}


/* =========================================================
   3. PROJECTS GRID
   ========================================================= */

.proj-section {
    position: relative;
    padding-block: clamp(2rem, 4vw, 3rem) clamp(5rem, 8vw, 7rem);
}

.proj-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(1rem, 2vw, 1.5rem);
}

@media (max-width: 1024px) { .proj-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px)  { .proj-grid { grid-template-columns: 1fr; } }


/* =========================================================
   4. PROJECT CARD  (rendered by projects.js)
   ========================================================= */

.proj-card {
    position: relative;
    display: flex;
    flex-direction: column;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xs);
    overflow: hidden;
    isolation: isolate;
    transition:
        transform var(--dur-base) var(--ease-out),
        box-shadow var(--dur-base) var(--ease-out),
        border-color var(--dur-base) var(--ease-out),
        opacity var(--dur-base) var(--ease-out);
    animation: projCardIn 0.5s var(--ease-out) both;
}

@keyframes projCardIn {
    from { opacity: 0; transform: translateY(14px); }
    to   { opacity: 1; transform: translateY(0); }
}

.proj-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: rgba(10, 110, 211, 0.24);
}

.proj-card.is-hidden { display: none !important; }

/* —— Visual block (abstract gradient + icon) —— */
.proj-card__visual {
    position: relative;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    isolation: isolate;
    background: linear-gradient(135deg, var(--g-from, var(--brand-black)) 0%, var(--g-to, var(--brand-tertiary)) 100%);
}

.proj-card__visual::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.18), transparent 45%),
        radial-gradient(circle at 80% 80%, rgba(10, 110, 211, 0.35), transparent 55%);
    pointer-events: none;
}

.proj-card__visual::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(to right, rgba(255, 255, 255, 0.07) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.07) 1px, transparent 1px);
    background-size: 36px 36px;
    -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 80%);
            mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 80%);
    pointer-events: none;
}

/* Floating glass shapes inside visual */
.proj-card__shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.14);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: transform var(--dur-slow) var(--ease-out);
}

.proj-card__shape--a { top: -28%; right: -18%; width: 220px; height: 220px; }
.proj-card__shape--b { bottom: -34%; left: -14%; width: 180px; height: 180px; opacity: 0.7; }

.proj-card:hover .proj-card__shape--a { transform: translate(-10px, 10px); }
.proj-card:hover .proj-card__shape--b { transform: translate(10px, -10px); }

/* Centered SVG icon */
.proj-card__icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 84px;
    height: 84px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.10);
    border: 1px solid rgba(255, 255, 255, 0.22);
    color: var(--white);
    backdrop-filter: blur(20px) saturate(160%);
    -webkit-backdrop-filter: blur(20px) saturate(160%);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.18),
        0 18px 40px rgba(0, 9, 25, 0.32);
    transition: transform var(--dur-base) var(--ease-out);
}

.proj-card__icon svg { width: 36px; height: 36px; }

.proj-card:hover .proj-card__icon { transform: translate(-50%, -50%) scale(1.06); }

/* —— Real image fallback (when imageUrl is provided in PROJECTS) —— */
.proj-card__image {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    z-index: 1;
    transition: transform var(--dur-slow) var(--ease-out);
}

.proj-card:hover .proj-card__image {
    transform: scale(1.04);
}

/* When an image is present, dim the gradient grid pattern slightly and
   keep the badge / index readable with a subtle bottom shade. */
.proj-card.has-image .proj-card__visual::after { display: none; }

.proj-card.has-image .proj-card__visual::before {
    background:
        linear-gradient(to bottom, rgba(0, 9, 25, 0) 40%, rgba(0, 9, 25, 0.55) 100%);
    z-index: 2;
}

.proj-card.has-image .proj-card__index,
.proj-card.has-image .proj-card__badge {
    z-index: 3;
}

/* Top-right type badge */
.proj-card__badge {
    position: absolute;
    top: 14px;
    right: 14px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    background: rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.24);
    border-radius: var(--radius-pill);
    color: var(--white);
    font-family: var(--font-secondary);
    font-size: var(--fs-micro);
    font-weight: var(--fw-medium);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.proj-card__badge svg { width: 12px; height: 12px; }

/* Top-left index */
.proj-card__index {
    position: absolute;
    top: 14px;
    left: 14px;
    font-family: var(--font-primary);
    font-size: var(--fs-micro);
    font-weight: var(--fw-semibold);
    color: rgba(255, 255, 255, 0.78);
    letter-spacing: 0.18em;
}

/* —— Body —— */
.proj-card__body {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: var(--space-4) var(--space-5) var(--space-5);
}

.proj-card__client {
    font-family: var(--font-secondary);
    font-size: var(--fs-micro);
    font-weight: var(--fw-medium);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.16em;
}

.proj-card__title {
    font-family: var(--font-primary);
    font-size: 1.125rem;
    font-weight: var(--fw-semibold);
    color: var(--text-primary);
    letter-spacing: -0.015em;
    line-height: 1.3;
}

.proj-card__service {
    font-family: var(--font-secondary);
    font-size: var(--fs-body-sm);
    color: var(--text-secondary);
    line-height: 1.5;
    margin-top: 2px;
}

.proj-card__meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-2);
    margin-top: var(--space-3);
    padding-top: var(--space-3);
    border-top: 1px solid var(--border);
    font-family: var(--font-secondary);
    font-size: var(--fs-caption);
    color: var(--text-muted);
}

.proj-card__year { font-variant-numeric: tabular-nums; font-weight: var(--fw-medium); }

/* —— CTA: now a real <a>; ::before stretches it across the whole card —— */
a.proj-card__cta {
  text-decoration: none;
  cursor: pointer;
}

a.proj-card__cta::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 6;            /* sits above visuals so the whole card is clickable */
}

.proj-card__cta--disabled {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: none;
}

.proj-card__cta {
  position: relative;    /* needed for the ::before overlay */
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--brand-tertiary);
  font-weight: var(--fw-semibold);
  transition: color var(--dur-base) var(--ease-out), gap var(--dur-base) var(--ease-out);
  }

.proj-card__cta svg { width: 14px; height: 14px; transition: transform var(--dur-base) var(--ease-out); }

.proj-card:hover .proj-card__cta { color: var(--brand-primary); gap: 10px; }
.proj-card:hover .proj-card__cta svg { transform: translateX(2px); }


/* =========================================================
   5. EMPTY STATE
   ========================================================= */

.proj-empty {
    text-align: center;
    padding: clamp(3rem, 6vw, 5rem) var(--space-4);
    background: var(--white);
    border: 1px dashed var(--line-grey);
    border-radius: var(--radius-xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
}

.proj-empty__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--soft-grey);
    color: var(--text-muted);
}

.proj-empty__icon svg { width: 24px; height: 24px; }

.proj-empty__title {
    font-family: var(--font-primary);
    font-size: var(--fs-h4);
    font-weight: var(--fw-semibold);
    color: var(--text-primary);
}

.proj-empty__copy {
    font-family: var(--font-secondary);
    font-size: var(--fs-body-sm);
    color: var(--text-secondary);
    max-width: 44ch;
    line-height: 1.5;
}


/* =========================================================
   6. CTA STRIP
   ========================================================= */

.proj-cta {
    position: relative;
    padding-block: clamp(2rem, 5vw, 4rem) clamp(4rem, 8vw, 7rem);
}

.proj-cta__card {
    position: relative;
    padding: clamp(2.25rem, 5vw, 4rem);
    background: linear-gradient(160deg, var(--brand-black) 0%, var(--brand-dark) 60%, var(--brand-tertiary) 100%);
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-xl);
    box-shadow:
        0 0 0 1px rgba(10, 110, 211, 0.16),
        0 24px 60px rgba(0, 9, 25, 0.32);
    overflow: hidden;
    isolation: isolate;
}

.proj-cta__decor {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.proj-cta__halo {
    position: absolute;
    top: -30%;
    right: -10%;
    width: 520px;
    height: 520px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(10, 110, 211, 0.45) 0%, rgba(10, 110, 211, 0) 60%);
    filter: blur(20px);
}

.proj-cta__ring {
    position: absolute;
    bottom: -50%;
    left: -10%;
    width: 480px;
    height: 480px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.proj-cta__content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
    max-width: 720px;
}

.chip--dark {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.14);
    color: rgba(255, 255, 255, 0.86);
}

.chip--dark .chip-dot { background: var(--brand-primary); box-shadow: 0 0 0 4px rgba(10, 110, 211, 0.22); }

.proj-cta__title {
    font-family: var(--font-primary);
    font-size: var(--fs-h1);
    font-weight: var(--fw-semibold);
    letter-spacing: -0.025em;
    color: var(--white);
    max-width: 22ch;
}

.proj-cta__copy {
    font-family: var(--font-secondary);
    font-size: var(--fs-body-lg);
    color: rgba(255, 255, 255, 0.78);
    line-height: 1.6;
    max-width: 56ch;
}

.proj-cta__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-top: var(--space-3);
}

.proj-cta__actions .btn-ghost {
    color: rgba(255, 255, 255, 0.85);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.18);
}

.proj-cta__actions .btn-ghost:hover {
    background: rgba(255, 255, 255, 0.12);
    color: var(--white);
}


/* =========================================================
   7. FOOTER
   ========================================================= */

.site-footer {
    border-top: 1px solid var(--border);
    background: var(--white);
}

.site-footer__inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding-block: var(--space-5);
}

.site-footer__nav {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    font-family: var(--font-secondary);
    font-size: var(--fs-body-sm);
    font-weight: var(--fw-medium);
}

.site-footer__nav a {
    color: var(--text-secondary);
    transition: color var(--dur-base) var(--ease-out);
}

.site-footer__nav a:hover { color: var(--brand-primary); }

.site-footer__copy {
    font-family: var(--font-secondary);
    font-size: var(--fs-caption);
    color: var(--text-muted);
}

.site-footer__copy span + span { margin-left: 4px; }

@media (max-width: 767px) {
    .site-footer__inner {
        justify-content: center;
        text-align: center;
        gap: var(--space-3);
    }
    .site-footer__nav { justify-content: center; }
}