/* ────────────────────────────────────────────────
   ProofDesk — Artwork Approval System Styles
   Aesthetic: Industrial / Print-house precision
   Palette: Deep navy + warm paper + ink accent
──────────────────────────────────────────────── */

:root {
    --navy:       #0f1b2d;
    --navy-mid:   #1a2e47;
    --navy-light: #243d5a;
    --ink:        #1a1a2e;
    --paper:      #f5f0e8;
    --paper-dark: #ede8de;
    --warm-white: #faf8f4;
    --accent:     #c8502e;
    --accent-light:#e87055;
    --green:      #1e6b45;
    --green-light:#d4edda;
    --red:        #8b2020;
    --red-light:  #fde8e8;
    --amber:      #7a5520;
    --amber-light:#fff3cd;
    --border:     #d8d0c4;
    --border-dark:#b8b0a4;
    --text:       #2c2416;
    --text-mid:   #5a5040;
    --text-light: #8a7e6e;
    --mono:       'DM Mono', 'Courier New', monospace;
    --serif:      'Fraunces', Georgia, serif;
    --radius:     4px;
    --shadow-sm:  0 1px 3px rgba(15,27,45,0.12);
    --shadow:     0 4px 16px rgba(15,27,45,0.14);
    --shadow-lg:  0 8px 32px rgba(15,27,45,0.18);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 15px; }

body {
    font-family: -apple-system, 'Helvetica Neue', Arial, sans-serif;
    background: var(--paper);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

body.approval-body {
    background: var(--warm-white);
}

/* ── Typography ── */
h1 { font-family: var(--serif); font-weight: 600; font-size: 2rem; color: var(--navy); letter-spacing: -0.02em; }
h2 { font-family: var(--serif); font-weight: 300; font-size: 1.35rem; color: var(--navy); }
p  { color: var(--text-mid); }
a  { color: var(--navy-mid); }
.mono { font-family: var(--mono); font-size: 0.88em; }
code { font-family: var(--mono); font-size: 0.85em; background: var(--paper-dark); padding: 2px 6px; border-radius: 3px; }

/* ── Header ── */
.header {
    background: var(--navy);
    border-bottom: 3px solid var(--accent);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}
.header-customer { border-bottom-color: var(--navy-light); }
.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.logo { display: flex; align-items: center; gap: 16px; }
.header-logo {
    height: 38px;
    width: auto;
    display: block;
    /* logo has a dark background — add a subtle filter if needed on light headers */
}
.logo-divider {
    width: 1px;
    height: 28px;
    background: rgba(255,255,255,0.25);
    flex-shrink: 0;
}
.logo-sub-text {
    color: rgba(255,255,255,0.55);
    font-size: 0.72rem;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    font-family: var(--mono);
    white-space: nowrap;
}

/* ── Layout ── */
.container { max-width: 1200px; margin: 0 auto; padding: 32px 24px; flex: 1; }
.container-narrow { max-width: 780px; }
.container-approval { max-width: 900px; }

/* ── Buttons ── */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 9px 18px;
    font-size: 0.88rem; font-weight: 500;
    border-radius: var(--radius);
    border: 1.5px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.15s;
    font-family: inherit;
}
.btn-primary {
    background: var(--accent); color: #fff; border-color: var(--accent);
}
.btn-primary:hover { background: var(--accent-light); border-color: var(--accent-light); }
.btn-ghost {
    background: transparent; color: rgba(255,255,255,0.75); border-color: rgba(255,255,255,0.25);
}
.btn-ghost:hover { color: #fff; border-color: rgba(255,255,255,0.6); background: rgba(255,255,255,0.08); }
.btn-sm { padding: 5px 12px; font-size: 0.82rem; }
.btn-lg { padding: 13px 28px; font-size: 1rem; }
.btn-approve { background: var(--green); color: #fff; border-color: var(--green); }
.btn-approve:hover { background: #24854f; border-color: #24854f; }
.btn-reject  { background: var(--red); color: #fff; border-color: var(--red); }
.btn-reject:hover  { background: #a82828; border-color: #a82828; }

/* ── Stats ── */
.stats-row {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
    margin-bottom: 28px;
}
.stat-card {
    background: #fff;
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 24px;
    border-left: 4px solid var(--navy-light);
}
.stat-pending  { border-left-color: var(--amber); }
.stat-approved { border-left-color: var(--green); }
.stat-rejected { border-left-color: var(--red); }
.stat-num   { font-family: var(--serif); font-size: 2.2rem; font-weight: 600; color: var(--navy); line-height: 1; }
.stat-label { font-size: 0.78rem; color: var(--text-light); text-transform: uppercase; letter-spacing: 0.07em; margin-top: 4px; font-family: var(--mono); }

/* ── Toolbar ── */
.toolbar {
    display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
    margin-bottom: 20px;
}
.filter-tabs { display: flex; gap: 0; border: 1.5px solid var(--border); border-radius: var(--radius); overflow: hidden; background: #fff; }
.filter-tab {
    padding: 7px 16px; font-size: 0.84rem; color: var(--text-mid);
    text-decoration: none; border-right: 1.5px solid var(--border);
    transition: background 0.12s;
}
.filter-tab:last-child { border-right: none; }
.filter-tab:hover { background: var(--paper-dark); }
.filter-tab.active { background: var(--navy); color: #fff; }

.search-form { display: flex; gap: 8px; align-items: center; }
.search-form .btn-ghost {
    background: transparent; color: var(--text-mid); border-color: var(--border);
}
.search-form .btn-ghost:hover { background: var(--paper-dark); color: var(--text); }
.search-input {
    padding: 7px 12px; border: 1.5px solid var(--border); border-radius: var(--radius);
    font-size: 0.88rem; font-family: inherit; background: #fff; color: var(--text); width: 260px;
}
.search-input:focus { outline: none; border-color: var(--navy-mid); }

/* ── Table ── */
.proofs-table-wrap {
    background: #fff; border: 1.5px solid var(--border);
    border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm);
}
.proofs-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.proofs-table thead { background: var(--navy); }
.proofs-table th {
    padding: 11px 16px; text-align: left; color: rgba(255,255,255,0.75);
    font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.08em;
    font-weight: 500; font-family: var(--mono);
}
.proofs-table td { padding: 12px 16px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.proofs-table tr:last-child td { border-bottom: none; }
.proofs-table tr:hover td { background: var(--paper); }
.proofs-table a { color: var(--navy-mid); text-decoration: none; }
.proofs-table a:hover { text-decoration: underline; }
.job-num { font-family: var(--mono); font-weight: 500; color: var(--navy); }

/* ── Badges ── */
.badge {
    display: inline-block; padding: 3px 9px; border-radius: 12px;
    font-size: 0.74rem; font-weight: 500; font-family: var(--mono);
    letter-spacing: 0.04em; text-transform: uppercase;
}
.badge-pending  { background: var(--amber-light); color: var(--amber); border: 1px solid #e0c070; }
.badge-approved { background: var(--green-light); color: var(--green); border: 1px solid #8ed4a8; }
.badge-rejected { background: var(--red-light); color: var(--red); border: 1px solid #f0a0a0; }

/* ── Actions ── */
.actions-cell { display: flex; gap: 8px; align-items: center; flex-wrap: nowrap; }
.action-link {
    font-family: var(--mono); font-size: 0.78rem; color: var(--navy-mid);
    text-decoration: none; padding: 3px 8px; border: 1px solid var(--border);
    border-radius: 3px; background: var(--paper);
    transition: background 0.12s, border-color 0.12s;
}
.action-link:hover { background: var(--paper-dark); border-color: var(--border-dark); }
.action-delete { color: var(--red); border-color: #f0c0c0; background: #fff8f8; }
.action-delete:hover { background: var(--red-light); }

/* ── Empty state ── */
.empty-state { text-align: center; padding: 80px 24px; color: var(--text-light); }
.empty-icon { margin-bottom: 16px; opacity: 0.35; }
.empty-state p { font-size: 1rem; }
.empty-state a { color: var(--navy-mid); }

/* ── Upload form ── */
.page-title { margin-bottom: 32px; }
.page-title h1 { margin-bottom: 8px; }
.page-title p { font-size: 0.93rem; }

.upload-form { display: flex; flex-direction: column; gap: 28px; }
.form-section {
    background: #fff; border: 1.5px solid var(--border); border-radius: var(--radius);
    padding: 28px 32px;
}
.section-title {
    font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.1em;
    color: var(--text-light); font-weight: 400; font-family: var(--mono);
    border-bottom: 1px solid var(--border); padding-bottom: 12px; margin-bottom: 24px;
}
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-row   { display: flex; flex-direction: column; gap: 18px; margin-bottom: 18px; }
.form-row-2 { flex-direction: row; gap: 20px; }
.form-row-2 .form-group { flex: 1; }
label {
    font-size: 0.82rem; font-weight: 500; color: var(--text); font-family: var(--mono);
    letter-spacing: 0.02em; text-transform: uppercase;
}
.req { color: var(--accent); }
.optional { font-weight: 400; color: var(--text-light); text-transform: none; font-family: inherit; }

input[type="text"], input[type="email"], textarea {
    padding: 10px 13px; border: 1.5px solid var(--border); border-radius: var(--radius);
    font-size: 0.93rem; font-family: inherit; color: var(--text); background: #fff;
    transition: border-color 0.15s;
    width: 100%;
}
input:focus, textarea:focus { outline: none; border-color: var(--navy-mid); }
textarea { resize: vertical; min-height: 80px; }

/* Drop zone */
.drop-zone { position: relative; }
.drop-zone input[type="file"] {
    position: absolute; inset: 0; width: 100%; height: 100%;
    opacity: 0; cursor: pointer; z-index: 2;
}
.drop-zone-inner {
    border: 2px dashed var(--border-dark); border-radius: var(--radius);
    padding: 40px 24px; text-align: center;
    background: var(--paper); cursor: pointer;
    transition: border-color 0.15s, background 0.15s;
}
.drop-zone-inner svg { opacity: 0.35; margin-bottom: 12px; }
.drop-zone-inner p { font-size: 0.93rem; color: var(--text-mid); margin: 0; }
.drop-zone-inner p + p { font-size: 0.82rem; color: var(--text-light); margin-top: 4px; }
.drop-zone.dragover .drop-zone-inner, .drop-zone:hover .drop-zone-inner {
    border-color: var(--navy-mid); background: var(--paper-dark);
}
.drop-zone.has-file .drop-zone-inner { border-color: var(--green); background: var(--green-light); }

.form-actions { display: flex; gap: 12px; align-items: center; }
.form-actions .btn-ghost {
    background: transparent; color: var(--text-mid); border-color: var(--border);
}
.form-actions .btn-ghost:hover { background: var(--paper-dark); color: var(--text); }

.hint { font-size: 0.82rem; color: var(--text-light); }

/* ── Alerts ── */
.alert {
    padding: 16px 20px; border-radius: var(--radius);
    margin-bottom: 24px; font-size: 0.93rem; border-left: 4px solid;
}
.alert-error   { background: var(--red-light); border-color: var(--red); color: var(--red); }
.alert-success { background: #eaf7ef; border-color: var(--green); color: var(--text); }
.alert-success strong { color: var(--green); display: block; margin-bottom: 8px; }

.url-box { display: flex; gap: 8px; margin: 10px 0; }
.url-box input { flex: 1; font-family: var(--mono); font-size: 0.85rem; }

.success-actions { display: flex; gap: 10px; margin-top: 16px; }
.success-actions .btn-ghost {
    background: transparent; color: var(--text-mid); border-color: var(--border);
}
.success-actions .btn-ghost:hover { background: var(--paper-dark); }

/* ── Approval page ── */
.proof-header {
    background: #fff; border: 1.5px solid var(--border); border-radius: var(--radius);
    padding: 24px 28px; margin-bottom: 24px;
}
.proof-meta { display: flex; gap: 40px; flex-wrap: wrap; margin-bottom: 12px; }
.meta-item { display: flex; flex-direction: column; gap: 3px; }
.meta-label { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-light); font-family: var(--mono); }
.meta-value { font-size: 0.95rem; font-weight: 500; color: var(--navy); }
.proof-notes {
    margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--border);
    font-size: 0.9rem;
}
.proof-notes strong { color: var(--text); }

.pdf-viewer-wrap {
    background: #fff; border: 1.5px solid var(--border);
    border-radius: var(--radius); overflow: hidden; margin-bottom: 28px;
    box-shadow: var(--shadow-sm);
}
.pdf-viewer-header {
    display: flex; align-items: center; gap: 8px;
    padding: 11px 16px; background: var(--navy);
    color: rgba(255,255,255,0.8); font-family: var(--mono); font-size: 0.84rem;
}
.pdf-viewer-header svg { opacity: 0.6; flex-shrink: 0; }
.pdf-download-link {
    margin-left: auto; display: inline-flex; align-items: center; gap: 5px;
    color: rgba(255,255,255,0.6); font-size: 0.8rem; text-decoration: none;
    padding: 3px 8px; border: 1px solid rgba(255,255,255,0.2); border-radius: 3px;
}
.pdf-download-link:hover { color: #fff; background: rgba(255,255,255,0.1); }
.pdf-frame {
    width: 100%; height: 640px; border: none; display: block;
    background: #e0ddd8;
}
.pdf-hint { padding: 8px 16px; background: var(--paper); font-size: 0.8rem; color: var(--text-light); text-align: center; border-top: 1px solid var(--border); }

.approval-section {
    background: #fff; border: 1.5px solid var(--border);
    border-radius: var(--radius); padding: 32px 36px;
}
.approval-section h2 { margin-bottom: 8px; }
.approval-section > p { margin-bottom: 24px; font-size: 0.93rem; }

.decision-tabs { display: flex; gap: 12px; margin-bottom: 28px; }
.decision-tab {
    flex: 1; padding: 14px 20px; display: flex; align-items: center; justify-content: center; gap: 8px;
    border: 2px solid var(--border); border-radius: var(--radius);
    background: #fff; color: var(--text-mid); font-size: 0.95rem; font-weight: 500;
    cursor: pointer; transition: all 0.15s; font-family: inherit;
}
.tab-approve.active { border-color: var(--green); background: var(--green-light); color: var(--green); }
.tab-reject.active  { border-color: var(--red); background: var(--red-light); color: var(--red); }
.decision-tab:hover { border-color: var(--border-dark); background: var(--paper); }

.decision-section { display: flex; flex-direction: column; gap: 20px; }

/* Signature pad */
.sig-area { display: flex; flex-direction: column; gap: 8px; }
.sig-header { display: flex; align-items: center; justify-content: space-between; }
.sig-header label { font-size: 0.82rem; font-weight: 500; color: var(--text); font-family: var(--mono); letter-spacing: 0.02em; text-transform: uppercase; }
.sig-header .btn-ghost { background: transparent; color: var(--text-mid); border-color: var(--border); }
.sig-header .btn-ghost:hover { background: var(--paper-dark); color: var(--text); }
#sig-canvas {
    width: 100%; height: 180px; display: block;
    border: 2px solid var(--border); border-radius: var(--radius);
    background: #fff; cursor: crosshair;
    touch-action: none;
}
#sig-canvas:hover { border-color: var(--navy-mid); }
.sig-hint { font-size: 0.78rem; color: var(--text-light); }

.approval-declaration label {
    display: flex; gap: 12px; align-items: flex-start; cursor: pointer;
}
.approval-declaration input[type="checkbox"] { margin-top: 3px; flex-shrink: 0; width: 16px; height: 16px; cursor: pointer; }
.approval-declaration span { font-size: 0.88rem; color: var(--text-mid); text-transform: none; font-weight: 400; font-family: inherit; letter-spacing: 0; }
.checkbox-label { text-transform: none !important; }

/* ── Confirmation / already done ── */
.confirmation-page, .already-done, .error-page {
    text-align: center; padding: 60px 40px;
    background: #fff; border: 1.5px solid var(--border);
    border-radius: var(--radius); margin: 20px auto; max-width: 640px;
}
.approved-confirm { border-top: 5px solid var(--green); }
.rejected-confirm { border-top: 5px solid var(--amber); }
.done-approved    { border-top: 5px solid var(--green); }
.done-rejected    { border-top: 5px solid var(--amber); }
.error-page       { border-top: 5px solid var(--red); }

.confirm-icon, .done-icon, .error-icon {
    margin-bottom: 20px; color: var(--navy);
    display: flex; justify-content: center;
}
.approved-confirm .confirm-icon, .done-approved .done-icon { color: var(--green); }
.rejected-confirm .confirm-icon { color: var(--amber); }
.error-page .error-icon { color: var(--red); }

.confirmation-page h1, .already-done h1, .error-page h1 { margin-bottom: 12px; }
.confirmation-page p, .already-done p, .error-page p { margin-bottom: 10px; }

.confirm-details {
    background: var(--paper); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 16px 20px;
    margin: 20px 0; text-align: left;
}
.detail-row {
    display: flex; justify-content: space-between; gap: 16px;
    padding: 6px 0; border-bottom: 1px solid var(--border);
    font-size: 0.88rem;
}
.detail-row:last-child { border-bottom: none; }
.detail-row span:first-child { color: var(--text-light); font-family: var(--mono); font-size: 0.8rem; }

.recorded-sig {
    margin: 20px auto; background: var(--paper);
    border: 1px solid var(--border); border-radius: var(--radius); padding: 16px;
    display: inline-block;
}
.sig-preview { max-width: 100%; max-height: 100px; display: block; margin: 0 auto; }

/* ── Footer ── */
.footer {
    text-align: center; padding: 20px;
    font-size: 0.78rem; color: var(--text-light);
    border-top: 1px solid var(--border); background: var(--paper-dark);
    font-family: var(--mono);
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .stats-row { grid-template-columns: repeat(2, 1fr); }
    .form-row-2 { flex-direction: column; }
    .toolbar { flex-direction: column; align-items: stretch; }
    .proofs-table-wrap { overflow-x: auto; }
    .pdf-frame { height: 420px; }
    .approval-section { padding: 24px 20px; }
    .decision-tabs { flex-direction: column; }
    .proof-meta { gap: 20px; }
    h1 { font-size: 1.5rem; }
    .container { padding: 20px 16px; }
}
@media (max-width: 480px) {
    .stats-row { grid-template-columns: 1fr 1fr; }
    .filter-tabs { flex-wrap: wrap; }
}