/* ── Reset & Base ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --ink:        #1a1714;
  --ink-2:      #4a4640;
  --ink-3:      #8a8480;
  --rule:       #e2ddd8;
  --rule-2:     #f0ece8;
  --bg:         #faf8f5;
  --bg-card:    #ffffff;
  --accent:     #b5935a;
  --accent-dim: #e8dcc8;
  --green:      #3a7d5a;
  --green-bg:   #eaf4ef;
  --warn:       #b07030;
  --warn-bg:    #fdf3e5;
  --red:        #b03a3a;
  --red-bg:     #fdf0f0;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'DM Sans', system-ui, sans-serif;

  --r:    6px;
  --r-lg: 12px;
  --shadow: 0 2px 12px rgba(26,23,20,0.07);
  --shadow-lg: 0 8px 32px rgba(26,23,20,0.10);
}

html { font-size: 16px; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
  font-weight: 300;
  font-size: 0.9375rem;
}

/* ── Login ──────────────────────────────────────────────────────── */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  background:
    radial-gradient(ellipse 70% 60% at 80% 20%, rgba(181,147,90,0.07) 0%, transparent 60%),
    radial-gradient(ellipse 50% 70% at 10% 80%, rgba(181,147,90,0.05) 0%, transparent 60%),
    var(--bg);
}

.login-card {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: var(--r-lg);
  padding: 3rem 2.5rem;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow-lg);
}

.login-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--rule);
}

.login-logo {
  width: 44px; height: 44px;
  color: var(--accent);
  flex-shrink: 0;
}
.login-logo svg { width: 100%; height: 100%; }

.login-brand-name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  line-height: 1.2;
}
.login-brand-sub {
  font-size: 0.75rem;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 400;
}

.login-intro {
  color: var(--ink-2);
  font-size: 0.875rem;
  line-height: 1.6;
  margin-bottom: 1.75rem;
}

.login-form { display: flex; flex-direction: column; gap: 1rem; }

.login-error {
  background: var(--red-bg);
  color: var(--red);
  border: 1px solid rgba(176,58,58,0.2);
  border-radius: var(--r);
  padding: 0.6rem 0.875rem;
  font-size: 0.8125rem;
}

.login-field { display: flex; flex-direction: column; gap: 0.4rem; }
.login-field label { font-size: 0.75rem; font-weight: 500; color: var(--ink-2); letter-spacing: 0.04em; }
.login-field input {
  border: 1px solid var(--rule);
  border-radius: var(--r);
  padding: 0.7rem 0.875rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--ink);
  background: var(--bg);
  transition: border-color .15s, box-shadow .15s;
  outline: none;
}
.login-field input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(181,147,90,0.12);
}

.login-note {
  margin-top: 1.25rem;
  font-size: 0.75rem;
  color: var(--ink-3);
  line-height: 1.6;
}

/* ── App Shell ──────────────────────────────────────────────────── */
.app-wrap { min-height: 100vh; display: flex; flex-direction: column; }

.app-header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--rule);
  position: sticky;
  top: 0;
  z-index: 50;
}
.app-header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.app-brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  color: var(--ink);
}
.app-brand svg { width: 28px; height: 28px; color: var(--accent); }
.app-brand span {
  font-family: var(--font-display);
  font-size: 1.1875rem;
  font-weight: 400;
  letter-spacing: 0.02em;
}
.app-brand em { font-style: italic; color: var(--ink-2); font-weight: 300; }

.logout-link {
  font-size: 0.75rem;
  color: var(--ink-3);
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: color .15s;
}
.logout-link:hover { color: var(--ink); }

/* ── Main layout ────────────────────────────────────────────────── */
.app-main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
  width: 100%;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* ── Steps ──────────────────────────────────────────────────────── */
.step { display: none; }
.step.is-active, .step:not(.hidden) { display: block; }
.step.hidden { display: none !important; }

.step-head {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}
.step-num {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 300;
  color: var(--accent);
  line-height: 1;
  letter-spacing: -0.02em;
  flex-shrink: 0;
}
.step-head h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  line-height: 1.2;
}
.step-head p { font-size: 0.8125rem; color: var(--ink-3); margin-top: 0.2rem; }

/* ── Card ───────────────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: var(--r-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow);
}

/* ── Fields ─────────────────────────────────────────────────────── */
.field-group { display: flex; flex-direction: column; gap: 0.4rem; }
.field-group label { font-size: 0.75rem; font-weight: 500; color: var(--ink-2); letter-spacing: 0.04em; }

input[type="text"],
input[type="number"],
input[type="password"] {
  border: 1px solid var(--rule);
  border-radius: var(--r);
  padding: 0.7rem 0.875rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--ink);
  background: var(--bg);
  transition: border-color .15s, box-shadow .15s;
  outline: none;
  width: 100%;
}
input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(181,147,90,0.12);
}
input::placeholder { color: var(--ink-3); }
input[type="number"] { -moz-appearance: textfield; }
input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; }

.input-row { display: flex; gap: 0.5rem; }
.input-row input { flex: 1; }

.field-error {
  font-size: 0.8rem;
  color: var(--red);
  margin-top: 0.25rem;
}
.field-error.hidden { display: none; }

/* ── Buttons ────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.25rem;
  border: none;
  border-radius: var(--r);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 400;
  cursor: pointer;
  transition: all .15s;
  letter-spacing: 0.02em;
  white-space: nowrap;
  text-decoration: none;
}
.btn svg { width: 16px; height: 16px; flex-shrink: 0; }

.btn-primary {
  background: var(--ink);
  color: #fff;
}
.btn-primary:hover { background: var(--ink-2); }
.btn-primary:disabled { background: var(--rule); color: var(--ink-3); cursor: not-allowed; }

.btn-ghost {
  background: transparent;
  color: var(--ink-2);
  border: 1px solid var(--rule);
}
.btn-ghost:hover { border-color: var(--ink-3); color: var(--ink); }

.btn-confirm {
  background: var(--green);
  color: #fff;
  font-weight: 500;
}
.btn-confirm:hover { background: #2e6448; }

.btn-full { width: 100%; }
.btn-sm { font-size: 0.8125rem; padding: 0.5rem 1rem; }

.btn-row {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 1.25rem;
}

/* ── Article result ─────────────────────────────────────────────── */
.article-result { margin-top: 1rem; }

.article-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg);
  border: 1px solid var(--accent-dim);
  border-radius: var(--r);
  padding: 0.5rem 0.875rem;
  flex-wrap: wrap;
}
.article-chip-num {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: 0.04em;
}
.article-chip-mat, .article-chip-roll {
  font-size: 0.75rem;
  color: var(--ink-3);
  background: var(--rule-2);
  border-radius: 4px;
  padding: 0.15rem 0.5rem;
  letter-spacing: 0.04em;
}
.article-chip-mat { color: var(--accent); }

.no-image-notice {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-top: 0.875rem;
  padding: 0.75rem;
  background: var(--warn-bg);
  border: 1px solid rgba(176,112,48,0.2);
  border-radius: var(--r);
  font-size: 0.8125rem;
  color: var(--warn);
  line-height: 1.5;
}
.no-image-notice svg { width: 16px; height: 16px; flex-shrink: 0; margin-top: 2px; }
.no-image-notice.hidden { display: none; }

/* ── Dimensions ─────────────────────────────────────────────────── */
.dim-row {
  display: flex;
  gap: 1rem;
  align-items: flex-end;
}
.dim-sep {
  padding-bottom: 0.75rem;
  color: var(--ink-3);
  font-size: 1.25rem;
  flex-shrink: 0;
}
.dim-row .field-group { flex: 1; }

.hint-box {
  margin-top: 1rem;
  padding: 0.75rem;
  background: var(--rule-2);
  border-radius: var(--r);
  font-size: 0.8125rem;
  color: var(--ink-2);
  line-height: 1.5;
}
.hint-box strong { color: var(--ink); font-weight: 500; }

/* ── Step 3 ─────────────────────────────────────────────────────── */
.roll-banner {
  padding: 1rem 1.25rem;
  border-radius: var(--r-lg);
  border: 1px solid;
  margin-bottom: 1.25rem;
  font-size: 0.9375rem;
  line-height: 1.5;
  display: none;
}
.roll-banner.visible { display: block; }
.roll-banner.good { background: var(--green-bg); border-color: rgba(58,125,90,0.25); color: var(--green); }
.roll-banner.warn { background: var(--warn-bg); border-color: rgba(176,112,48,0.25); color: var(--warn); }
.roll-banner strong { font-weight: 500; }

.step3-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  align-items: start;
}
@media (max-width: 768px) {
  .step3-layout { grid-template-columns: 1fr; }
}

/* ── Panel ──────────────────────────────────────────────────────── */
.panel {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: var(--r-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}
.panel-head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  padding-bottom: 0.875rem;
  border-bottom: 1px solid var(--rule);
}
.step-mini {
  width: 28px; height: 28px;
  background: var(--accent-dim);
  color: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 500;
  flex-shrink: 0;
}
.panel-title { font-weight: 500; font-size: 0.9375rem; color: var(--ink); }
.panel-hint { font-size: 0.75rem; color: var(--ink-3); margin-top: 0.15rem; }

/* ── Canvas / Crop ───────────────────────────────────────────────── */
.no-preview-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 3rem 1rem;
  text-align: center;
  color: var(--ink-3);
  font-size: 0.875rem;
}
.no-preview-panel svg { width: 48px; height: 48px; }
.no-preview-panel.hidden { display: none; }

.canvas-container { overflow: hidden; border-radius: var(--r); background: var(--rule-2); }
.canvas-wrap {
  position: relative;
  display: inline-block;
  cursor: crosshair;
  line-height: 0;
  width: 100%;
}
#main-canvas {
  display: block;
  width: 100%;
  height: auto;
  user-select: none;
  -webkit-user-drag: none;
}

/* Crop overlay */
.crop-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.shadow {
  position: absolute;
  background: rgba(26,23,20,0.4);
  pointer-events: none;
}
.shadow-top    { top: 0; left: 0; right: 0; }
.shadow-bottom { bottom: 0; left: 0; right: 0; }
.shadow-left   { top: var(--ct, 0px); bottom: var(--cb, 0px); left: 0; }
.shadow-right  { top: var(--ct, 0px); bottom: var(--cb, 0px); right: 0; }

.crop-rect {
  position: absolute;
  border: 2px solid var(--accent);
  cursor: move;
  pointer-events: all;
  box-sizing: border-box;
}
.crop-rect::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(181,147,90,0.04);
}

/* Rule of thirds grid */
.crop-rect::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(181,147,90,0.25) 1px, transparent 1px),
    linear-gradient(90deg, rgba(181,147,90,0.25) 1px, transparent 1px);
  background-size: 33.33% 33.33%;
}

/* Corner handles */
.crh {
  position: absolute;
  width: 10px; height: 10px;
  background: var(--accent);
  border-radius: 2px;
  pointer-events: all;
}
.crh-tl { top: -5px; left: -5px; cursor: nw-resize; }
.crh-tr { top: -5px; right: -5px; cursor: ne-resize; }
.crh-bl { bottom: -5px; left: -5px; cursor: sw-resize; }
.crh-br { bottom: -5px; right: -5px; cursor: se-resize; }

.bahn-svg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  width: 100%;
  height: 100%;
}

.crop-coords {
  font-size: 0.75rem;
  color: var(--ink-3);
  margin-top: 0.5rem;
  min-height: 1.2em;
  font-variant-numeric: tabular-nums;
}

.confirm-wrap {
  margin-top: 1rem;
  display: flex;
  gap: 1.25rem;
  align-items: center;
}

/* ── Roll detail ────────────────────────────────────────────────── */
.roll-blocked {
  padding: 2rem 1rem;
  text-align: center;
  color: var(--ink-3);
  font-size: 0.875rem;
}
.roll-blocked.hidden { display: none; }
.roll-detail { display: none; }
.roll-detail.visible { display: block; }

.roll-stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}
.roll-stat {
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: var(--r);
  padding: 0.75rem;
}
.roll-stat-val {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 400;
  line-height: 1;
  color: var(--ink);
  letter-spacing: -0.02em;
}
.roll-stat-label {
  font-size: 0.7rem;
  color: var(--ink-3);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-top: 0.25rem;
}

.roll-breakdown-title {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--ink-2);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0.625rem;
}

.roll-breakdown-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
}
.roll-breakdown-table th {
  text-align: left;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--ink-3);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0 0 0.4rem;
  border-bottom: 1px solid var(--rule);
}
.roll-breakdown-table td {
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--rule-2);
  color: var(--ink-2);
  vertical-align: middle;
}
.roll-breakdown-table tr:last-child td { border-bottom: none; }
.roll-breakdown-table td:last-child { text-align: right; font-variant-numeric: tabular-nums; }
.roll-bahn-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px; height: 20px;
  background: var(--accent-dim);
  color: var(--accent);
  border-radius: 3px;
  font-size: 0.7rem;
  font-weight: 500;
  margin-right: 0.375rem;
}

.roll-note {
  margin-top: 0.875rem;
  font-size: 0.75rem;
  color: var(--ink-3);
  line-height: 1.6;
  padding: 0.625rem 0.75rem;
  background: var(--rule-2);
  border-radius: var(--r);
}

/* ── Footer actions ─────────────────────────────────────────────── */
.footer-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}
.original-size{margin-top:.5rem;font-size:.8125rem;color:var(--ink-2);padding:.4rem .75rem;background:var(--rule-2);border-radius:var(--r);display:inline-block;}
.original-size.hidden{display:none;}
.original-size{margin-top:.5rem;font-size:.8125rem;color:var(--ink-2);padding:.4rem .75rem;background:var(--rule-2);border-radius:var(--r);display:inline-block;}.original-size.hidden{display:none;}