/* ═══════════════════════════════════════════════
   AIRCRAFT REMOVED PARTS REGISTER — style.css
   ═══════════════════════════════════════════════ */

:root {
  --navy:        #0d1b2e;
  --navy-mid:    #16304f;
  --navy-light:  #1e4a72;
  --steel:       #2c6e9e;
  --steel-soft:  #4a8fc0;
  --accent:      #e8a020;
  --accent-dim:  #c4851a;
  --red:         #c0392b;
  --red-soft:    #e74c3c;
  --white:       #ffffff;
  --off-white:   #f4f6f9;
  --gray-100:    #edf0f4;
  --gray-200:    #d8dde6;
  --gray-400:    #8a96a8;
  --gray-600:    #4a5568;
  --gray-800:    #2d3748;
  --text:        #1a2535;
  --text-muted:  #5a6a7e;
  --radius:      4px;
  --radius-lg:   8px;
  --shadow-card: 0 2px 12px rgba(13,27,46,.12);
  --shadow-btn:  0 2px 6px rgba(13,27,46,.22);
  --font-ui:    'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --font-mono:  'Consolas', 'Courier New', monospace;
  --transition:  0.18s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 14px; scroll-behavior: smooth; }
body {
  font-family: var(--font-ui);
  background: var(--off-white);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── HEADER ── */
.site-header {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 60%, var(--navy-light) 100%);
  border-bottom: 3px solid var(--accent);
  box-shadow: 0 3px 16px rgba(0,0,0,.35);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.header-logo { display: flex; align-items: center; gap: 1rem; }
.logo-icon {
  font-size: 2rem;
  line-height: 1;
  filter: drop-shadow(0 0 6px rgba(232,160,32,.5));
  animation: float 4s ease-in-out infinite;
}
@keyframes float {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(-3px); }
}
.header-titles { display: flex; flex-direction: column; }
.header-sub {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--accent);
  text-transform: uppercase;
}
.header-title {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--white);
  line-height: 1.2;
}
.header-meta { display: flex; flex-direction: column; align-items: flex-end; gap: 0.2rem; }
.header-date { font-family: var(--font-mono); font-size: 0.85rem; color: var(--gray-200); letter-spacing: .08em; }
.header-rev {
  font-size: 0.68rem; font-weight: 700; letter-spacing: .12em;
  background: var(--accent); color: var(--navy);
  padding: 0.1rem 0.45rem; border-radius: 3px;
}

/* ── MAIN ── */
.main-content {
  flex: 1;
  max-width: 1280px;
  width: 100%;
  margin: 1.5rem auto;
  padding: 0 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* ── CARD ── */
.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--gray-200);
  overflow: hidden;
}
.card-header {
  background: linear-gradient(90deg, var(--navy-mid) 0%, var(--navy-light) 100%);
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.card-icon { font-size: 1rem; }
.card-header h2 {
  font-size: 0.78rem; font-weight: 700;
  letter-spacing: .12em; color: var(--white);
  text-transform: uppercase; flex: 1;
}
.card-badge {
  font-size: 0.7rem; font-weight: 700; letter-spacing: .06em;
  background: var(--accent); color: var(--navy);
  padding: 0.2rem 0.6rem; border-radius: 30px;
}

/* ── FORM ── */
.form-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.9rem 1.1rem;
  padding: 1.25rem 1.25rem 0.5rem;
}
.form-group { display: flex; flex-direction: column; gap: 0.3rem; }

label {
  font-size: 0.7rem; font-weight: 600;
  letter-spacing: .06em; text-transform: uppercase; color: var(--text-muted);
}
.req { color: var(--accent); }
.label-hint { font-size: 0.65rem; font-weight: 400; color: var(--gray-400); text-transform: none; letter-spacing: 0; }

input[type="text"],
input[type="number"] {
  font-family: var(--font-ui); font-size: 0.875rem; color: var(--text);
  background: var(--white); border: 1.5px solid var(--gray-200);
  border-radius: var(--radius); padding: 0.48rem 0.65rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}
input:focus {
  outline: none; border-color: var(--steel);
  box-shadow: 0 0 0 3px rgba(44,110,158,.15);
}
input::placeholder { color: var(--gray-400); }
input[type="number"] { -moz-appearance: textfield; }
input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; }

/* ── PHOTO UPLOAD BOX ── */
.upload-group { gap: 0.4rem; }

.upload-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 120px;
  border: 2px dashed var(--gray-200);
  border-radius: var(--radius-lg);
  background: var(--gray-100);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition), background var(--transition);
  padding: 0.75rem;
}
.upload-box:hover {
  border-color: var(--steel-soft);
  background: #eaf3fb;
}
.upload-box.drag-over {
  border-color: var(--accent);
  background: #fef8ec;
}
.upload-icon { font-size: 1.6rem; line-height: 1; opacity: .7; }
.upload-hint { font-size: 0.68rem; color: var(--gray-400); text-transform: none; font-weight: 400; letter-spacing: 0; }

.upload-preview {
  display: none;
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-lg);
}
.upload-box.has-photo .upload-icon,
.upload-box.has-photo .upload-hint { display: none; }
.upload-box.has-photo .upload-preview { display: block; }

/* overlay on hover when has photo */
.upload-box.has-photo::after {
  content: '🔄 Replace';
  position: absolute;
  inset: 0;
  background: rgba(13,27,46,.55);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: .06em;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
  border-radius: var(--radius-lg);
}
.upload-box.has-photo:hover::after { opacity: 1; }

.clear-photo-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--red);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.1rem 0;
  letter-spacing: .04em;
  width: fit-content;
  transition: opacity var(--transition);
}
.clear-photo-btn:hover { opacity: .75; }

/* ── FORM ACTIONS ── */
.form-actions {
  padding: 0.9rem 1.25rem 1.1rem;
  display: flex;
  gap: 0.75rem;
  align-items: center;
  border-top: 1px solid var(--gray-100);
  margin-top: 0.5rem;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; gap: 0.4rem;
  font-family: var(--font-ui); font-size: 0.78rem; font-weight: 700;
  letter-spacing: .07em; text-transform: uppercase;
  border: none; border-radius: var(--radius);
  padding: 0.55rem 1.2rem; cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: linear-gradient(135deg, var(--steel) 0%, var(--navy-light) 100%);
  color: var(--white); box-shadow: var(--shadow-btn);
}
.btn-primary:hover { background: linear-gradient(135deg, var(--steel-soft) 0%, var(--steel) 100%); }
.btn-secondary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dim) 100%);
  color: var(--navy); box-shadow: var(--shadow-btn);
}
.btn-secondary:hover { background: linear-gradient(135deg, #f0b040 0%, var(--accent) 100%); }
.btn-ghost {
  background: transparent; color: var(--text-muted);
  border: 1.5px solid var(--gray-200);
}
.btn-ghost:hover { background: var(--gray-100); color: var(--text); }
.btn-danger-ghost {
  background: transparent; color: var(--red);
  border: 1.5px solid rgba(192,57,43,.3); font-size: 0.72rem;
}
.btn-danger-ghost:hover { background: rgba(192,57,43,.06); border-color: var(--red); }
.btn-icon { font-size: 1rem; line-height: 1; }

/* ── SEARCH ── */
.search-wrap { position: relative; display: flex; align-items: center; }
.search-wrap input {
  font-size: 0.8rem; padding: 0.38rem 2rem 0.38rem 0.7rem;
  width: 260px; background: rgba(255,255,255,.12);
  border: 1.5px solid rgba(255,255,255,.25);
  color: var(--white); border-radius: var(--radius);
}
.search-wrap input::placeholder { color: rgba(255,255,255,.5); }
.search-wrap input:focus {
  background: rgba(255,255,255,.2); border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(232,160,32,.2);
}
.search-clear {
  position: absolute; right: 0.5rem;
  color: rgba(255,255,255,.5); cursor: pointer;
  font-size: 0.75rem; line-height: 1; padding: 0.2rem;
  transition: color var(--transition);
}
.search-clear:hover { color: var(--white); }

/* ── TABLE ── */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table { width: 100%; border-collapse: collapse; font-size: 0.8rem; }
thead tr { background: var(--gray-100); border-bottom: 2px solid var(--navy-mid); }
th {
  padding: 0.6rem 0.7rem; text-align: left;
  font-size: 0.68rem; font-weight: 700;
  letter-spacing: .09em; text-transform: uppercase;
  color: var(--navy-mid); white-space: nowrap;
}
tbody tr { border-bottom: 1px solid var(--gray-100); transition: background var(--transition); }
tbody tr:nth-child(even) { background: #f8fafc; }
tbody tr:hover { background: #e8f2fa; }
td { padding: 0.5rem 0.7rem; vertical-align: middle; color: var(--gray-800); }
td.mono { font-family: var(--font-mono); font-size: 0.75rem; color: var(--navy-mid); font-weight: 600; }
td.pn-cell { font-weight: 700; color: var(--navy); }
td.no-cell { font-family: var(--font-mono); font-size: 0.72rem; font-weight: 700; color: var(--gray-400); width: 2.5rem; }
td.date-cell { font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-muted); white-space: nowrap; }
td.qty-cell { font-weight: 700; color: var(--steel); font-family: var(--font-mono); text-align: center; }
td.photo-cell { text-align: center; padding: 0.35rem 0.5rem; }

/* Thumbnail */
.thumb {
  width: 52px;
  height: 52px;
  object-fit: cover;
  border-radius: var(--radius);
  border: 2px solid var(--gray-200);
  cursor: zoom-in;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  display: block;
  margin: 0 auto;
}
.thumb:hover {
  transform: scale(1.12);
  border-color: var(--steel);
  box-shadow: 0 4px 14px rgba(44,110,158,.3);
}
.no-photo { color: var(--gray-400); font-size: 0.8rem; }

.del-btn {
  background: none; border: 1px solid rgba(192,57,43,.3);
  color: var(--red-soft); cursor: pointer; border-radius: var(--radius);
  padding: 0.22rem 0.5rem; font-size: 0.72rem; font-weight: 700;
  transition: background var(--transition), border-color var(--transition);
}
.del-btn:hover { background: rgba(192,57,43,.08); border-color: var(--red); }

/* Column widths */
.col-no    { width: 44px; }
.col-date  { width: 76px; }
.col-reg   { width: 80px; }
.col-pn    { min-width: 120px; }
.col-sn    { width: 110px; }
.col-pos   { width: 60px; }
.col-qty   { width: 48px; text-align: center; }
.col-by    { width: 110px; }
.col-photo { width: 70px; text-align: center; }
.col-del   { width: 50px; text-align: center; }

/* Empty state */
.empty-state { text-align: center; padding: 3rem 1rem; color: var(--gray-400); }
.empty-icon  { font-size: 2.5rem; margin-bottom: 0.75rem; opacity: .5; }
.empty-state p { font-size: 0.85rem; line-height: 1.7; }

/* Table footer */
.table-footer {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 0.75rem;
  padding: 0.85rem 1.25rem;
  border-top: 1px solid var(--gray-100);
  background: var(--gray-100);
}
.total-label { font-size: 0.78rem; font-weight: 600; color: var(--text-muted); letter-spacing: .04em; }
.total-label strong { font-size: 1.05rem; color: var(--navy); font-family: var(--font-mono); }
.footer-actions { display: flex; gap: 0.6rem; flex-wrap: wrap; }

/* ── LIGHTBOX ── */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.82);
  z-index: 500;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  backdrop-filter: blur(4px);
}
.lightbox.open { display: flex; }
.lightbox-inner {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}
#lightboxImg {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 40px rgba(0,0,0,.6);
  border: 2px solid rgba(255,255,255,.15);
}
.lightbox-caption {
  color: rgba(255,255,255,.75);
  font-size: 0.78rem;
  font-family: var(--font-mono);
  letter-spacing: .05em;
  text-align: center;
}
.lightbox-close {
  position: absolute;
  top: -2.5rem;
  right: 0;
  background: rgba(255,255,255,.15);
  border: 1px solid rgba(255,255,255,.3);
  color: var(--white);
  width: 2rem; height: 2rem;
  border-radius: 50%;
  font-size: 0.85rem;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background var(--transition);
}
.lightbox-close:hover { background: rgba(255,255,255,.3); }

/* ── TOAST ── */
.toast {
  position: fixed; bottom: 1.5rem; left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--navy-mid); color: var(--white);
  font-size: 0.82rem; font-weight: 600; letter-spacing: .03em;
  padding: 0.65rem 1.4rem; border-radius: 30px;
  box-shadow: 0 6px 24px rgba(0,0,0,.35);
  border-left: 4px solid var(--accent);
  opacity: 0;
  transition: opacity 0.28s ease, transform 0.28s ease;
  z-index: 999; white-space: nowrap;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ── SITE FOOTER ── */
.site-footer {
  background: var(--navy);
  color: rgba(255,255,255,.4);
  text-align: center;
  font-size: 0.68rem;
  letter-spacing: .08em;
  padding: 0.85rem 1rem;
  border-top: 2px solid var(--accent);
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .form-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .header-inner { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
  .header-meta  { flex-direction: row; gap: 0.75rem; }
  .form-grid    { grid-template-columns: 1fr; }
  .form-actions { flex-wrap: wrap; }
  .search-wrap input { width: 100%; }
  .table-footer { flex-direction: column; align-items: flex-start; }
  .site-footer p { font-size: 0.62rem; }
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { height: 6px; width: 6px; }
::-webkit-scrollbar-track { background: var(--gray-100); }
::-webkit-scrollbar-thumb { background: var(--gray-200); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--steel-soft); }