/* ============================================================
   PROJECTS — Premium Industrial Engineering Grid
   ============================================================ */

.projects {
  background: var(--c-white);
  background-image:
    repeating-linear-gradient(
      0deg,
      transparent, transparent 40px,
      rgba(31, 41, 51, 0.022) 40px,
      rgba(31, 41, 51, 0.022) 41px
    ),
    repeating-linear-gradient(
      90deg,
      transparent, transparent 40px,
      rgba(31, 41, 51, 0.022) 40px,
      rgba(31, 41, 51, 0.022) 41px
    );
  padding: var(--section-py-sm) 0;
}

.projects__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-px);
}


/* ── Section Header ── */

.projects__header {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  margin-bottom: var(--sp-10);
}

.projects__header-text {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.projects__label {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--c-amber);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.projects__label::before {
  content: '';
  display: block;
  width: 28px;
  height: 2px;
  background: var(--c-amber);
  border-radius: 2px;
  flex-shrink: 0;
}

.projects__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--c-graphite);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.projects__subtitle {
  font-size: var(--text-md);
  color: var(--c-steel);
  line-height: 1.6;
  max-width: 480px;
}


/* ── Grid (mobile-first: 1 col) ── */

.projects__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-4);
}


/* ════════════════════════════════════════
   PROJECT CARD
   ════════════════════════════════════════ */

.project-card {
  display: flex;
  flex-direction: column;
  /* Warm industrial off-white — subtle concrete tone, not pure white */
  background: #F8F7F5;
  border: 1px solid rgba(15, 23, 42, 0.09);
  border-radius: 14px;
  overflow: hidden;
  box-shadow:
    0 1px 2px rgba(15, 23, 42, 0.04),
    0 4px 12px rgba(15, 23, 42, 0.06),
    0 14px 36px rgba(15, 23, 42, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.90);
  transition:
    box-shadow 0.45s cubic-bezier(0.22, 0.61, 0.36, 1),
    transform 0.45s cubic-bezier(0.22, 0.61, 0.36, 1),
    border-color 0.45s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.project-card:hover {
  transform: translateY(-5px);
  border-color: rgba(217, 119, 6, 0.22);
  box-shadow:
    0 2px 4px rgba(15, 23, 42, 0.04),
    0 8px 20px rgba(15, 23, 42, 0.09),
    0 32px 64px rgba(15, 23, 42, 0.13),
    0 0 0 1px rgba(217, 119, 6, 0.09),
    0 24px 52px rgba(217, 119, 6, 0.07),
    inset 0 1px 0 rgba(255, 255, 255, 0.90);
}


/* ════════════════════════════════════════
   IMAGE AREA
   ════════════════════════════════════════ */

.project-card__image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  flex-shrink: 0;
  background-color: #152234;
  background-image:
    repeating-linear-gradient(
      0deg,
      transparent, transparent 24px,
      rgba(100, 160, 220, 0.07) 24px,
      rgba(100, 160, 220, 0.07) 25px
    ),
    repeating-linear-gradient(
      90deg,
      transparent, transparent 24px,
      rgba(100, 160, 220, 0.07) 24px,
      rgba(100, 160, 220, 0.07) 25px
    );
}

/* Radial atmosphere + edge vignette */
.project-card__image::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    /* Edge vignette — soft, cinematic, realistic */
    radial-gradient(
      ellipse at 50% 50%,
      transparent 38%,
      rgba(8, 14, 22, 0.32) 100%
    ),
    /* Center focus warm glow (amber welding / hot metal) */
    radial-gradient(
      ellipse at 80% 20%,
      rgba(217, 119, 6, 0.05) 0%,
      transparent 55%
    ),
    /* Cool steel ambient */
    radial-gradient(
      ellipse at 30% 70%,
      rgba(80, 120, 170, 0.06) 0%,
      transparent 60%
    );
  pointer-events: none;
  z-index: 2;
  transition: opacity 0.45s ease;
}

.project-card:hover .project-card__image::after {
  background:
    radial-gradient(
      ellipse at 50% 50%,
      transparent 32%,
      rgba(8, 14, 22, 0.44) 100%
    ),
    radial-gradient(
      ellipse at 80% 20%,
      rgba(217, 119, 6, 0.09) 0%,
      transparent 55%
    ),
    radial-gradient(
      ellipse at 30% 70%,
      rgba(80, 120, 170, 0.10) 0%,
      transparent 60%
    );
}

/* Technical corner accents */
.project-card__image::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 4;
  pointer-events: none;
  background:
    /* TL corner */
    linear-gradient(to right, rgba(217,119,6,0.50) 0px, rgba(217,119,6,0.50) 18px, transparent 18px) 12px 12px / 18px 1.5px no-repeat,
    linear-gradient(to bottom, rgba(217,119,6,0.50) 0px, rgba(217,119,6,0.50) 18px, transparent 18px) 12px 12px / 1.5px 18px no-repeat,
    /* TR corner */
    linear-gradient(to left, rgba(217,119,6,0.50) 0px, rgba(217,119,6,0.50) 18px, transparent 18px) calc(100% - 12px) 12px / 18px 1.5px no-repeat,
    linear-gradient(to bottom, rgba(217,119,6,0.50) 0px, rgba(217,119,6,0.50) 18px, transparent 18px) calc(100% - 13.5px) 12px / 1.5px 18px no-repeat,
    /* BL corner */
    linear-gradient(to right, rgba(217,119,6,0.50) 0px, rgba(217,119,6,0.50) 18px, transparent 18px) 12px calc(100% - 12px) / 18px 1.5px no-repeat,
    linear-gradient(to top, rgba(217,119,6,0.50) 0px, rgba(217,119,6,0.50) 18px, transparent 18px) 12px calc(100% - 13.5px) / 1.5px 18px no-repeat,
    /* BR corner */
    linear-gradient(to left, rgba(217,119,6,0.50) 0px, rgba(217,119,6,0.50) 18px, transparent 18px) calc(100% - 12px) calc(100% - 12px) / 18px 1.5px no-repeat,
    linear-gradient(to top, rgba(217,119,6,0.50) 0px, rgba(217,119,6,0.50) 18px, transparent 18px) calc(100% - 13.5px) calc(100% - 13.5px) / 1.5px 18px no-repeat;
  transition: opacity 0.45s ease;
  opacity: 0.60;
}

.project-card:hover .project-card__image::before {
  opacity: 1;
}


/* ── Real photo ── */

.project-card__photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  z-index: 1;
  /* Cinematic grading: cold steel + mild contrast, slightly desaturated */
  filter: saturate(0.80) contrast(1.09) brightness(0.96);
  transition:
    filter 0.55s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.project-card:hover .project-card__photo {
  filter: saturate(0.86) contrast(1.07) brightness(0.90);
}

/* Blueprint hides automatically when photo sibling is present */
.project-card__photo ~ .project-card__blueprint {
  display: none;
}


/* ── Image Inner (zoom target) ── */

.project-card__image-inner {
  position: absolute;
  inset: 0;
  transition: transform 0.65s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.project-card:hover .project-card__image-inner {
  transform: scale(1.03);
}


/* ── Blueprint SVG container ── */

.project-card__blueprint {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-5) var(--sp-8);
  z-index: 1;
}

.project-card__blueprint svg {
  width: 100%;
  height: 100%;
  display: block;
  opacity: 0.82;
  filter: drop-shadow(0 0 6px rgba(100, 160, 220, 0.18));
  transition: opacity 0.45s ease, filter 0.45s ease;
}

.project-card:hover .project-card__blueprint svg {
  opacity: 1;
  filter: drop-shadow(0 0 12px rgba(100, 160, 220, 0.30));
}


/* ── Cinematic overlay ── */

.project-card__overlay {
  position: absolute;
  inset: 0;
  z-index: 3;
  background: linear-gradient(
    to bottom,
    rgba(10, 18, 30, 0.07) 0%,
    rgba(10, 18, 30, 0.01) 30%,
    rgba(10, 18, 30, 0.64) 100%
  );
  pointer-events: none;
  transition: background 0.45s ease;
}

.project-card:hover .project-card__overlay {
  background: linear-gradient(
    to bottom,
    rgba(10, 18, 30, 0.14) 0%,
    rgba(10, 18, 30, 0.03) 30%,
    rgba(10, 18, 30, 0.78) 100%
  );
}


/* ── Badge (category, top-left) ── */

.project-card__badge {
  position: absolute;
  top: var(--sp-4);
  left: var(--sp-4);
  z-index: 5;
  padding: 5px 12px;
  background: rgba(210, 112, 0, 0.94);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: 3px;
  line-height: 1.4;
  border: 1px solid rgba(255, 200, 80, 0.18);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}


/* ── Location badge (top-right) ── */

.project-card__location {
  position: absolute;
  top: var(--sp-4);
  right: var(--sp-4);
  z-index: 5;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 11px;
  background: rgba(8, 16, 26, 0.78);
  color: rgba(255, 255, 255, 0.88);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.03em;
  border-radius: 3px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  line-height: 1.4;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.project-card__location::before {
  content: '';
  display: block;
  width: 5px;
  height: 5px;
  background: var(--c-amber);
  border-radius: 50%;
  flex-shrink: 0;
  box-shadow: 0 0 0 2px rgba(217, 119, 6, 0.22);
}


/* ════════════════════════════════════════
   CARD BODY
   ════════════════════════════════════════ */

.project-card__body {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  padding: var(--sp-6);
  flex: 1;
  /* Warm industrial concrete tone — no texture in text zone */
  background: #F8F7F5;
}

.project-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-2);
  flex-wrap: wrap;
}

.project-card__category {
  font-size: 10px;
  font-weight: 700;
  color: var(--c-amber);
  text-transform: uppercase;
  letter-spacing: 0.10em;
}

/* Status — compact with glowing dot */
.project-card__status {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 10px;
  font-weight: 600;
  color: rgba(15, 23, 42, 0.52);
  letter-spacing: 0.03em;
}

.project-card__status::before {
  content: '';
  display: block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #10B981;
  box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.20);
  flex-shrink: 0;
}

.project-card__title {
  font-size: var(--text-md);
  font-weight: 700;
  color: var(--c-graphite);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.project-card__desc {
  font-size: var(--text-sm);
  color: rgba(22, 32, 50, 0.72);
  line-height: 1.7;
}


/* ════════════════════════════════════════
   INDUSTRIAL DASHBOARD — METRICS ROW
   ════════════════════════════════════════ */

.project-card__metrics {
  display: flex;
  align-items: stretch;
  margin-top: auto;
  padding-top: var(--sp-4);
  border-top: 1px solid rgba(15, 23, 42, 0.08);
  gap: 0;
}

.project-card__metric {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
  padding: var(--sp-2) var(--sp-4);
}

.project-card__metric:first-child {
  padding-left: 0;
}

/* Vertical divider between metrics */
.project-card__metric + .project-card__metric {
  border-left: 1px solid rgba(15, 23, 42, 0.08);
}

.project-card__metric-val {
  font-size: var(--text-md);
  font-weight: 800;
  color: #0c1523;
  line-height: 1;
  white-space: nowrap;
  letter-spacing: -0.02em;
}

.project-card__metric-key {
  font-size: 9px;
  font-weight: 600;
  color: rgba(100, 116, 139, 0.72);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  line-height: 1.2;
}


/* ════════════════════════════════════════
   BOTTOM CTA FOOTER
   ════════════════════════════════════════ */

.projects__cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sp-4) var(--sp-6);
  padding-top: var(--sp-8);
  margin-top: var(--sp-8);
  border-top: 1px solid rgba(15, 23, 42, 0.08);
}

.projects__cta-text {
  font-size: var(--text-md);
  color: var(--c-steel);
  line-height: 1.5;
}

.projects__cta-text strong {
  color: var(--c-graphite);
  font-weight: 700;
}


/* ── Reveal animations ── */

.projects__header[data-reveal],
.projects__grid[data-reveal],
.projects__cta[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.projects__header[data-reveal].is-visible,
.projects__grid[data-reveal].is-visible,
.projects__cta[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .projects__header[data-reveal],
  .projects__grid[data-reveal],
  .projects__cta[data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}


/* ── Mobile (max 767px) ── */

@media (max-width: 767px) {
  .projects__cta {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}


/* ── Tablet (768px+): 2-column grid ── */

@media (min-width: 768px) {
  .projects {
    padding: var(--section-py-md) 0;
  }

  .projects__header {
    margin-bottom: var(--sp-12);
  }

  .projects__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--sp-5);
  }

  .project-card__body {
    padding: var(--sp-6) var(--sp-8);
  }
}


/* ── Desktop (1024px+): asymmetric cinematic grid ── */

@media (min-width: 1024px) {
  .projects {
    padding: var(--section-py-lg) 0;
  }

  .projects__header {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: var(--sp-12);
  }

  /* 5-column grid for 3/5 + 2/5 rhythm */
  .projects__grid {
    grid-template-columns: repeat(5, 1fr);
    gap: var(--sp-5);
  }

  /* Wide cards (3/5) — alternating rhythm */
  .project-card:nth-child(1),
  .project-card:nth-child(4),
  .project-card:nth-child(5) {
    grid-column: span 3;
  }

  /* Narrow cards (2/5) */
  .project-card:nth-child(2),
  .project-card:nth-child(3),
  .project-card:nth-child(6) {
    grid-column: span 2;
  }

  /* Narrow cards get taller image ratio */
  .project-card:nth-child(2) .project-card__image,
  .project-card:nth-child(3) .project-card__image,
  .project-card:nth-child(6) .project-card__image {
    aspect-ratio: 4 / 3;
  }

  .project-card__title {
    font-size: var(--text-lg);
  }

  .project-card__body {
    padding: var(--sp-6) var(--sp-8);
  }

  /* ── Wide (featured) cards — slightly more dominant visual presence ── */
  .project-card:nth-child(1),
  .project-card:nth-child(4),
  .project-card:nth-child(5) {
    box-shadow:
      0 1px 2px rgba(15, 23, 42, 0.05),
      0 6px 16px rgba(15, 23, 42, 0.08),
      0 20px 48px rgba(15, 23, 42, 0.11),
      inset 0 1px 0 rgba(255, 255, 255, 0.90);
  }

  .project-card:nth-child(1):hover,
  .project-card:nth-child(4):hover,
  .project-card:nth-child(5):hover {
    box-shadow:
      0 2px 4px rgba(15, 23, 42, 0.05),
      0 10px 24px rgba(15, 23, 42, 0.10),
      0 36px 72px rgba(15, 23, 42, 0.15),
      0 0 0 1px rgba(217, 119, 6, 0.10),
      0 28px 56px rgba(217, 119, 6, 0.08),
      inset 0 1px 0 rgba(255, 255, 255, 0.90);
  }

  /* Featured cards — richer cinematic photo grading */
  .project-card:nth-child(1) .project-card__photo,
  .project-card:nth-child(4) .project-card__photo,
  .project-card:nth-child(5) .project-card__photo {
    filter: saturate(0.76) contrast(1.11) brightness(0.95);
  }

  .project-card:nth-child(1):hover .project-card__photo,
  .project-card:nth-child(4):hover .project-card__photo,
  .project-card:nth-child(5):hover .project-card__photo {
    filter: saturate(0.83) contrast(1.09) brightness(0.89);
  }
}


/* ── Large Desktop (1280px+) ── */

@media (min-width: 1280px) {
  .projects__grid {
    gap: var(--sp-6);
  }
}