/* ============================================================
   IMAGE TOOLBOX — CSS
   Palette : Theme clair / Light — Bleu acier + Orange accent
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Share+Tech+Mono&family=Barlow+Condensed:wght@300;600;800&display=swap');

/* ---------- RESET & BASE ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #f0f2f5;
  --bg2:       #ffffff;
  --bg3:       #f7f8fa;
  --border:    #d0d4dc;
  --orange:    #d4580a;
  --orange-lt: #e8630a;
  --amber:     #b45309;
  --white:     #1a1b1e;
  --grey:      #6b7280;
  --grey-lt:   #4b5563;
  --green:     #16a34a;
  --red:       #dc2626;
  --blue:      #2563eb;
  --font-mono: 'Share Tech Mono', monospace;
  --font-ui:   'Barlow Condensed', sans-serif;
  --radius:    4px;
  --shadow:    0 4px 24px rgba(0,0,0,.10);
}

html, body {
  background: var(--bg);
  color:      var(--white);
  font-family: var(--font-ui);
  font-size:   15px;
  min-height:  100vh;
}

/* ---------- HEADER ---------- */
.tb-header {
  display:         flex;
  align-items:     center;
  justify-content: space-between;
  padding:         12px 24px;
  background:      var(--bg2);
  border-bottom:   2px solid var(--orange);
  position:        sticky;
  top: 0;
  z-index: 100;
}

.tb-header__logo {
  display:     flex;
  align-items: center;
  gap:         10px;
}

.tb-header__icon {
  font-size:   1.7rem;
  color:       var(--orange);
  animation:   spin 10s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.tb-header__title {
  font-family: var(--font-ui);
  font-size:   1.5rem;
  font-weight: 300;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--grey-lt);
}

.tb-header__title strong {
  font-weight: 800;
  color:       var(--white);
}

.tb-header__version {
  font-family: var(--font-mono);
  font-size:   0.72rem;
  color:       var(--orange);
  background:  rgba(232,99,10,.12);
  padding:     4px 10px;
  border:      1px solid var(--orange);
  border-radius: var(--radius);
}

/* ---------- LAYOUT ---------- */
.tb-layout {
  display:   grid;
  grid-template-columns: 340px 1fr;
  gap:       0;
  min-height: calc(100vh - 80px);
}

/* ---------- SIDEBAR ---------- */
.tb-sidebar {
  background:  var(--bg2);
  border-right: 1px solid var(--border);
  padding:     16px;
  overflow-y:  auto;
  display:     flex;
  flex-direction: column;
  gap:         12px;
  max-height:  calc(100vh - 60px);
}

/* Scrollbar styling */
.tb-sidebar::-webkit-scrollbar { width: 5px; }
.tb-sidebar::-webkit-scrollbar-track { background: var(--bg); }
.tb-sidebar::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

/* ---------- CARDS ---------- */
.tb-card {
  background:    var(--bg3);
  border:        1px solid var(--border);
  border-radius: var(--radius);
  padding:       14px;
  transition:    border-color .2s;
}

.tb-card:hover { border-color: rgba(232,99,10,.4); }

.tb-card--upload {
  border-color:   var(--orange);
  background:     linear-gradient(135deg, #fff3e8 0%, var(--bg3) 100%);
}

.tb-card__title {
  font-size:      0.75rem;
  font-weight:    800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color:          var(--orange);
  margin-bottom:  12px;
  display:        flex;
  align-items:    center;
  gap:            8px;
  border-bottom:  1px solid var(--border);
  padding-bottom: 8px;
}

.tb-num {
  font-family: var(--font-mono);
  color:       var(--grey);
  font-size:   0.7rem;
}

/* ---------- UPLOAD ZONE ---------- */
.tb-upload-zone {
  position:      relative;
  border:        2px dashed var(--border);
  border-radius: var(--radius);
  padding:       20px 12px;
  text-align:    center;
  margin-bottom: 10px;
  cursor:        pointer;
  transition:    border-color .2s, background .2s;
}

.tb-upload-zone:hover {
  border-color: var(--orange);
  background:   rgba(232,99,10,.05);
}

.tb-file-input {
  position: absolute;
  inset:    0;
  opacity:  0;
  cursor:   pointer;
  width:    100%;
  height:   100%;
}

.tb-upload-zone__label {
  pointer-events: none;
  display:        flex;
  flex-direction: column;
  align-items:    center;
  gap:            6px;
  color:          var(--grey-lt);
  font-size:      0.85rem;
}

.tb-upload-zone__icon { font-size: 1.8rem; }

/* ---------- FORM ELEMENTS ---------- */
.tb-row {
  display:        flex;
  flex-direction: column;
  gap:            4px;
  margin-bottom:  8px;
}

.tb-row label {
  font-size:      0.7rem;
  font-weight:    600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color:          var(--grey-lt);
}

.tb-row--check {
  flex-direction: row;
  align-items:    center;
  gap:            8px;
}

.tb-row--check label { text-transform: none; font-size: 0.82rem; letter-spacing: 0; }

.tb-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 8px; }

.tb-input, .tb-select {
  background:    #ffffff;
  border:        1px solid var(--border);
  border-radius: var(--radius);
  color:         var(--white);
  font-family:   var(--font-mono);
  font-size:     0.82rem;
  padding:       6px 10px;
  width:         100%;
  outline:       none;
  transition:    border-color .2s;
}

.tb-input:focus, .tb-select:focus { border-color: var(--orange); }

.tb-check {
  accent-color: var(--orange);
  width: 15px; height: 15px;
  cursor: pointer;
}

/* ---------- BUTTONS ---------- */
.tb-btn {
  display:        inline-block;
  font-family:    var(--font-ui);
  font-weight:    800;
  font-size:      0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding:        8px 14px;
  border:         none;
  border-radius:  var(--radius);
  cursor:         pointer;
  transition:     background .15s, transform .1s;
  width:          100%;
  margin-top:     4px;
}

.tb-btn:active { transform: scale(.97); }

.tb-btn--primary {
  background: var(--orange);
  color:      #fff;
}
.tb-btn--primary:hover { background: var(--orange-lt); }

.tb-btn--tool {
  background: #ffffff;
  color:      var(--orange);
  border:     1px solid var(--border);
}
.tb-btn--tool:hover { background: rgba(212,88,10,.08); border-color: var(--orange); }

.tb-btn--danger  { background: var(--red);   color: #fff; }
.tb-btn--success { background: var(--green); color: #111; }
.tb-btn--ghost   { background: transparent; color: var(--grey); border: 1px solid var(--border); width: auto; }
.tb-btn--ghost:hover { background: var(--bg); }
.tb-btn--xs      { font-size: 0.68rem; padding: 4px 10px; margin-top: 0; }
.tb-btn--sm      { font-size: 0.72rem; padding: 5px 12px; margin-top: 0; width: auto; }

/* ---------- MAIN CONTENT ---------- */
.tb-content {
  display:        flex;
  flex-direction: column;
  gap:            0;
  overflow:       hidden;
}

/* ---------- MESSAGES ---------- */
.tb-message {
  padding:       10px 18px;
  font-size:     0.9rem;
  font-family:   var(--font-mono);
  border-left:   4px solid var(--grey);
  background:    var(--bg3);
  transition:    all .2s;
}

.tb-message--success { border-left-color: var(--green); background: rgba(22,163,74,.07);  color: #15803d; }
.tb-message--error   { border-left-color: var(--red);   background: rgba(220,38,38,.07);   color: #b91c1c; }
.tb-message--warning { border-left-color: var(--amber); background: rgba(180,83,9,.07);    color: #92400e; }
.tb-message--info    { border-left-color: var(--blue);  background: rgba(37,99,235,.07);   color: #1d4ed8; }

/* ---------- INFO BAR ---------- */
.tb-infobar {
  display:     flex;
  align-items: center;
  flex-wrap:   wrap;
  gap:         12px;
  padding:     10px 18px;
  background:  var(--bg3);
  border-bottom: 1px solid var(--border);
  font-size:   0.78rem;
  font-family: var(--font-mono);
  color:       var(--grey-lt);
}

.tb-infobar span { display: flex; align-items: center; gap: 4px; }

/* ---------- PREVIEW AREA ---------- */
.tb-preview-area {
  flex:            1;
  display:         flex;
  align-items:     center;
  justify-content: center;
  background:
    repeating-conic-gradient(#e5e7eb 0% 25%, #f3f4f6 0% 50%) 0 0 / 24px 24px;
  min-height:  300px;
  overflow:    hidden;
  position:    relative;
}

.tb-preview-empty {
  display:        flex;
  flex-direction: column;
  align-items:    center;
  gap:            12px;
  color:          var(--grey);
  text-align:     center;
  padding:        40px;
}

.tb-preview-empty__icon { font-size: 4rem; opacity: .3; }
.tb-preview-empty__text { font-size: 0.9rem; line-height: 1.6; }
.tb-preview-empty__text small { font-size: 0.75rem; color: var(--grey); }

.tb-preview-container {
  max-width:  100%;
  max-height: 100%;
  display:    flex;
  align-items: center;
  justify-content: center;
  padding:    16px;
}

.tb-preview-img {
  max-width:    100%;
  max-height:   calc(100vh - 340px);
  object-fit:   contain;
  border:       2px solid var(--border);
  box-shadow:   0 4px 20px rgba(0,0,0,.12);
  border-radius: 2px;
  transition:   all .3s ease;
}

/* ---------- LOG PANEL ---------- */
.tb-log-panel {
  border-top:  1px solid var(--border);
  background:  var(--bg2);
  max-height:  180px;
  overflow-y:  auto;
  flex-shrink: 0;
}

.tb-log-panel__header {
  display:         flex;
  justify-content: space-between;
  align-items:     center;
  padding:         8px 16px;
  font-size:       0.7rem;
  font-weight:     800;
  letter-spacing:  0.15em;
  text-transform:  uppercase;
  color:           var(--grey);
  border-bottom:   1px solid var(--border);
  position:        sticky;
  top: 0;
  background:      #ffffff;
}

.tb-log-panel__body { padding: 8px 16px; }

.tb-log-entry {
  font-family: var(--font-mono);
  font-size:   0.72rem;
  padding:     3px 0;
  color:       var(--grey-lt);
  border-bottom: 1px solid rgba(0,0,0,.05);
  animation:   fadeIn .3s ease;
}

@keyframes fadeIn { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; } }

.tb-log-ts {
  color:        var(--orange);
  margin-right: 8px;
  font-size:    0.68rem;
}

/* ---------- FOOTER ---------- */
.tb-footer {
  text-align:  center;
  font-size:   0.68rem;
  font-family: var(--font-mono);
  color:       var(--grey);
  padding:     10px;
  border-top:  1px solid var(--border);
  background:  var(--bg2);
}

/* ---------- SCROLLBAR LOG ---------- */
.tb-log-panel::-webkit-scrollbar { width: 4px; }
.tb-log-panel::-webkit-scrollbar-track { background: var(--bg); }
.tb-log-panel::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 900px) {
  .tb-layout { grid-template-columns: 1fr; }
  .tb-sidebar { max-height: none; }
}