@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700;800&family=Open+Sans:wght@300;400;600&display=swap');

:root {
  --orange: #F07C1E;
  --orange-dark: #d4680e;
  --orange-light: #fef3e8;
  --navy: #1a2a4a;
  --navy-mid: #243658;
  --navy-light: #2d4270;
  --sidebar-w: 240px;
  --header-h: 60px;
  --white: #ffffff;
  --bg: #f0f2f7;
  --surface: #ffffff;
  --border: #e2e8f0;
  --text: #1e293b;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --success: #16a34a;
  --danger: #dc2626;
  --warning: #d97706;
  --info: #0284c7;
  --shadow: 0 2px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.14);
  --radius: 8px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Open Sans', sans-serif; background: var(--bg); color: var(--text); min-height: 100vh; }

/* ===================== LOGIN ===================== */
.login-page { display: flex; min-height: 100vh; }
.login-left {
  flex: 0 0 55%;
  background: linear-gradient(135deg, #0d1b35 0%, #1a2a4a 40%, #243658 100%);
  display: flex; flex-direction: column; justify-content: center;
  padding: 60px 80px; position: relative; overflow: hidden;
}
.login-left::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at 80% 50%, rgba(240,124,30,0.07) 0%, transparent 60%),
              radial-gradient(ellipse at 10% 80%, rgba(255,255,255,0.03) 0%, transparent 50%);
}
.login-left-badge {
  display: inline-block; border: 1px solid var(--orange); color: var(--orange);
  font-family: 'Montserrat', sans-serif; font-size: 11px; font-weight: 600;
  letter-spacing: 1.5px; text-transform: uppercase; padding: 5px 14px;
  border-radius: 4px; margin-bottom: 32px; position: relative;
}
.login-left-title { font-family: 'Montserrat', sans-serif; font-size: 32px; font-weight: 800; color: white; line-height: 1.25; margin-bottom: 16px; position: relative; }
.login-left-title span { color: var(--orange); }
.login-left-desc { color: rgba(255,255,255,0.6); font-size: 14px; line-height: 1.7; max-width: 380px; position: relative; margin-bottom: 40px; }
.login-left-info { display: flex; flex-direction: column; gap: 10px; position: relative; }
.login-left-info-item { display: flex; align-items: center; gap: 10px; color: rgba(255,255,255,0.55); font-size: 13px; }
.login-left-info-item span { color: rgba(255,255,255,0.75); }
.login-left-footer { position: absolute; bottom: 24px; left: 80px; color: rgba(255,255,255,0.3); font-size: 12px; }

.login-right {
  flex: 1; background: white;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 60px 80px;
}
.login-logo { margin-bottom: 8px; text-align: center; }
.login-logo img { height: 52px; }
.login-logo-text { font-family: 'Montserrat', sans-serif; font-size: 26px; font-weight: 800; color: var(--navy); letter-spacing: 1px; display: none; }
.login-welcome { font-family: 'Montserrat', sans-serif; font-size: 22px; font-weight: 700; color: var(--text); margin-bottom: 6px; }
.login-sub { color: var(--text-muted); font-size: 13px; margin-bottom: 32px; }
.login-form { width: 100%; max-width: 340px; }
.login-form label { display: block; font-size: 11px; font-weight: 700; color: var(--text-muted); letter-spacing: 1px; text-transform: uppercase; margin-bottom: 6px; font-family: 'Montserrat', sans-serif; }
.login-form input { width: 100%; padding: 11px 14px; border: 1.5px solid var(--border); border-radius: 6px; font-size: 14px; font-family: 'Open Sans', sans-serif; outline: none; transition: border-color 0.2s; margin-bottom: 18px; }
.login-form input:focus { border-color: var(--orange); }
.login-btn { width: 100%; padding: 13px; background: var(--orange); color: white; border: none; border-radius: 6px; font-family: 'Montserrat', sans-serif; font-size: 13px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; cursor: pointer; transition: background 0.2s; }
.login-btn:hover { background: var(--orange-dark); }
.login-copyright { margin-top: 40px; color: var(--text-light); font-size: 12px; text-align: center; }

/* ===================== LAYOUT ===================== */
.layout { display: flex; min-height: 100vh; }

/* SIDEBAR */
.sidebar {
  width: var(--sidebar-w); background: var(--navy);
  display: flex; flex-direction: column;
  position: fixed; top: 0; left: 0; height: 100vh;
  z-index: 200; transition: transform 0.3s;
}
.sidebar-logo {
  height: var(--header-h); display: flex; align-items: center;
  padding: 0 20px; border-bottom: 1px solid rgba(255,255,255,0.06);
  gap: 10px;
}
.sidebar-logo img { height: 30px; filter: brightness(0) invert(1); }
.sidebar-logo-text { font-family: 'Montserrat', sans-serif; font-size: 13px; font-weight: 700; color: rgba(255,255,255,0.9); text-transform: uppercase; letter-spacing: 0.5px; display: none; }
.sidebar-logo-sub { font-size: 9px; font-family: 'Montserrat', sans-serif; color: var(--orange); text-transform: uppercase; letter-spacing: 1px; font-weight: 600; }
.sidebar-section { padding: 16px 12px 8px; font-size: 10px; font-weight: 700; color: rgba(255,255,255,0.25); text-transform: uppercase; letter-spacing: 1.5px; font-family: 'Montserrat', sans-serif; }
.sidebar-nav { flex: 1; overflow-y: auto; padding: 8px 0; }
.nav-item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 20px; color: rgba(255,255,255,0.6);
  font-size: 13px; font-weight: 500; cursor: pointer;
  transition: all 0.18s; border-left: 3px solid transparent;
  user-select: none;
}
.nav-item:hover { background: rgba(255,255,255,0.05); color: rgba(255,255,255,0.9); }
.nav-item.active { background: rgba(240,124,30,0.12); color: white; border-left-color: var(--orange); }
.nav-item .nav-icon { font-size: 16px; flex-shrink: 0; width: 20px; text-align: center; }
.sidebar-footer { padding: 16px 20px; border-top: 1px solid rgba(255,255,255,0.06); }
.sidebar-user { display: flex; align-items: center; gap: 10px; }
.sidebar-user-avatar { width: 32px; height: 32px; background: var(--orange); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; color: white; font-family: 'Montserrat', sans-serif; flex-shrink: 0; }
.sidebar-user-info { flex: 1; min-width: 0; }
.sidebar-user-name { font-size: 13px; font-weight: 600; color: white; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sidebar-user-role { font-size: 10px; color: rgba(255,255,255,0.4); text-transform: uppercase; letter-spacing: 0.5px; }
.sidebar-logout { background: none; border: none; color: rgba(255,255,255,0.3); cursor: pointer; font-size: 16px; padding: 4px; transition: color 0.2s; }
.sidebar-logout:hover { color: var(--danger); }

/* MAIN */
.main { margin-left: var(--sidebar-w); flex: 1; display: flex; flex-direction: column; min-height: 100vh; }
.topbar { height: var(--header-h); background: white; border-bottom: 1px solid var(--border); display: flex; align-items: center; padding: 0 28px; gap: 16px; position: sticky; top: 0; z-index: 100; box-shadow: 0 1px 4px rgba(0,0,0,0.04); }
.topbar-title { font-family: 'Montserrat', sans-serif; font-size: 16px; font-weight: 700; color: var(--navy); flex: 1; }
.topbar-breadcrumb { font-size: 12px; color: var(--text-muted); }
.topbar-breadcrumb span { color: var(--orange); font-weight: 600; }
.page-content { padding: 28px; flex: 1; }

/* ===================== COMPONENTS ===================== */
.card { background: white; border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--border); }
.card-header { padding: 16px 20px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.card-title { font-family: 'Montserrat', sans-serif; font-size: 14px; font-weight: 700; color: var(--navy); }
.card-body { padding: 20px; }

/* STATS CARDS */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 24px; }
.stat-card { background: white; border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); border: 1px solid var(--border); display: flex; align-items: center; gap: 16px; }
.stat-icon { width: 48px; height: 48px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 22px; flex-shrink: 0; }
.stat-icon.orange { background: var(--orange-light); }
.stat-icon.navy { background: rgba(26,42,74,0.08); }
.stat-icon.green { background: #f0fdf4; }
.stat-icon.blue { background: #eff6ff; }
.stat-value { font-family: 'Montserrat', sans-serif; font-size: 24px; font-weight: 800; color: var(--navy); line-height: 1; }
.stat-label { font-size: 12px; color: var(--text-muted); margin-top: 3px; }

/* BUTTONS */
.btn { display: inline-flex; align-items: center; gap: 7px; padding: 9px 18px; border: none; border-radius: 6px; font-family: 'Montserrat', sans-serif; font-size: 13px; font-weight: 600; cursor: pointer; transition: all 0.18s; text-decoration: none; letter-spacing: 0.2px; white-space: nowrap; }
.btn:disabled { opacity: 0.5; cursor: default; }
.btn-primary { background: var(--orange); color: white; }
.btn-primary:hover:not(:disabled) { background: var(--orange-dark); }
.btn-navy { background: var(--navy); color: white; }
.btn-navy:hover:not(:disabled) { background: var(--navy-mid); }
.btn-success { background: var(--success); color: white; }
.btn-success:hover:not(:disabled) { background: #15803d; }
.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover:not(:disabled) { background: #b91c1c; }
.btn-ghost { background: transparent; color: var(--navy); border: 1.5px solid var(--border); }
.btn-ghost:hover:not(:disabled) { background: var(--bg); border-color: var(--navy); }
.btn-sm { padding: 6px 12px; font-size: 12px; }
.btn-lg { padding: 12px 28px; font-size: 14px; }

/* FORMS */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 11px; font-weight: 700; color: var(--navy); margin-bottom: 5px; letter-spacing: 0.5px; text-transform: uppercase; font-family: 'Montserrat', sans-serif; }
.form-control { width: 100%; padding: 10px 13px; border: 1.5px solid var(--border); border-radius: 6px; font-family: 'Open Sans', sans-serif; font-size: 14px; color: var(--text); background: white; transition: border-color 0.18s; outline: none; }
.form-control:focus { border-color: var(--orange); box-shadow: 0 0 0 3px rgba(240,124,30,0.08); }
select.form-control { cursor: pointer; }
textarea.form-control { resize: vertical; min-height: 80px; }

/* TABLE */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; padding: 10px 14px; background: #f8fafc; border-bottom: 2px solid var(--border); font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-muted); font-family: 'Montserrat', sans-serif; }
td { padding: 12px 14px; border-bottom: 1px solid var(--border); vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: #fafbfc; }

/* BADGES */
.badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 11px; font-weight: 700; font-family: 'Montserrat', sans-serif; text-transform: uppercase; letter-spacing: 0.3px; }
.badge-pending, .badge-Pendiente { background: #fef9c3; color: #854d0e; }
.badge-completed, .badge-Completado { background: #dcfce7; color: #166534; }
.badge-signed, .badge-Firmado { background: #dcfce7; color: #166534; }
.badge-storage { background: #eff6ff; color: #1d4ed8; }
.badge-signature { background: #fef3e8; color: #c2410c; }
.badge-admin { background: rgba(240,124,30,0.15); color: var(--orange-dark); }
.badge-user { background: #f1f5f9; color: #475569; }

/* MODAL */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.45); display: flex; align-items: center; justify-content: center; z-index: 1000; padding: 20px; backdrop-filter: blur(3px); }
.modal { background: white; border-radius: 10px; box-shadow: var(--shadow-lg); max-width: 600px; width: 100%; max-height: 90vh; overflow-y: auto; }
.modal-lg { max-width: 800px; }
.modal-header { padding: 18px 22px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; background: var(--navy); border-radius: 10px 10px 0 0; }
.modal-header .card-title { color: white; }
.modal-close { background: rgba(255,255,255,0.1); border: none; cursor: pointer; color: white; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 14px; transition: background 0.18s; }
.modal-close:hover { background: rgba(255,255,255,0.2); }
.modal-body { padding: 22px; }
.modal-footer { padding: 14px 22px; border-top: 1px solid var(--border); display: flex; gap: 10px; justify-content: flex-end; background: #f8fafc; border-radius: 0 0 10px 10px; }

/* DROP ZONE */
.drop-zone { border: 2px dashed var(--border); border-radius: var(--radius); padding: 32px; text-align: center; cursor: pointer; transition: all 0.2s; background: #fafbfc; }
.drop-zone:hover, .drop-zone.dragover { border-color: var(--orange); background: var(--orange-light); }
.drop-zone-icon { font-size: 36px; margin-bottom: 10px; }
.drop-zone-text { color: var(--text-muted); font-size: 13px; }
.drop-zone-text strong { color: var(--orange); }

/* SIGNERS */
.signers-list { display: flex; flex-direction: column; gap: 8px; }
.signer-row { display: grid; grid-template-columns: 28px 1fr 1fr auto; gap: 8px; align-items: center; background: #f8fafc; padding: 8px 10px; border-radius: 6px; border: 1px solid var(--border); }
.signer-badge { width: 24px; height: 24px; background: var(--orange); color: white; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 11px; font-weight: 700; font-family: 'Montserrat', sans-serif; }

/* PROGRESS */
.progress-track { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 4px; padding: 14px 24px; background: white; border-bottom: 1px solid var(--border); }
.progress-step { display: flex; align-items: center; gap: 6px; }
.progress-dot { width: 30px; height: 30px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; flex-shrink: 0; font-family: 'Montserrat', sans-serif; }
.progress-dot.done { background: var(--success); color: white; }
.progress-dot.active { background: var(--orange); color: white; box-shadow: 0 0 0 3px rgba(240,124,30,0.2); }
.progress-dot.waiting { background: #f1f5f9; color: var(--text-muted); border: 2px solid var(--border); }
.progress-line { width: 28px; height: 2px; background: var(--border); }
.progress-line.done { background: var(--success); }

/* PDF VIEWER */
.pdf-viewer-wrap { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: #525659; position: relative; }
.pdf-viewer-wrap iframe { width: 100%; height: 500px; border: none; display: block; }
.pdf-fullscreen-btn { position: absolute; top: 10px; right: 10px; background: rgba(0,0,0,0.6); color: white; border: none; border-radius: 5px; padding: 6px 10px; font-size: 12px; cursor: pointer; z-index: 10; font-family: 'Montserrat', sans-serif; font-weight: 600; transition: background 0.2s; }
.pdf-fullscreen-btn:hover { background: var(--orange); }
.pdf-fullscreen-overlay { position: fixed; inset: 0; background: #525659; z-index: 2000; display: flex; flex-direction: column; }
.pdf-fullscreen-bar { background: var(--navy); padding: 10px 20px; display: flex; align-items: center; justify-content: space-between; }
.pdf-fullscreen-bar span { color: white; font-family: 'Montserrat', sans-serif; font-size: 13px; font-weight: 600; }
.pdf-fullscreen-overlay iframe { flex: 1; border: none; width: 100%; }

/* SIG PAD */
.sig-pad-wrap { border: 2px solid var(--border); border-radius: var(--radius); overflow: hidden; position: relative; background: white; }
.sig-pad-label { position: absolute; top: 10px; left: 14px; font-size: 10px; color: var(--text-light); pointer-events: none; user-select: none; font-family: 'Montserrat', sans-serif; text-transform: uppercase; letter-spacing: 0.5px; }
#signatureCanvas { display: block; width: 100%; cursor: crosshair; touch-action: none; }

/* PAGE TABS */
.page-tabs { display: flex; gap: 0; border-bottom: 2px solid var(--border); margin-bottom: 20px; }
.tab-btn { padding: 10px 20px; background: none; border: none; font-size: 13px; font-weight: 600; color: var(--text-muted); cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -2px; transition: all 0.18s; font-family: 'Montserrat', sans-serif; text-transform: uppercase; letter-spacing: 0.3px; font-size: 12px; }
.tab-btn.active { color: var(--orange); border-bottom-color: var(--orange); }
.tab-btn:hover:not(.active) { color: var(--navy); }

/* ALERTS */
.alert { padding: 12px 16px; border-radius: 6px; font-size: 13px; margin-bottom: 14px; display: flex; align-items: flex-start; gap: 10px; }
.alert-success { background: #f0fdf4; border: 1px solid #86efac; color: #166534; }
.alert-error { background: #fef2f2; border: 1px solid #fca5a5; color: #991b1b; }
.alert-info { background: #eff6ff; border: 1px solid #93c5fd; color: #1d4ed8; }
.alert-warning { background: #fffbeb; border: 1px solid #fcd34d; color: #92400e; }

/* MISC */
.split-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.empty-state { text-align: center; padding: 56px 24px; color: var(--text-muted); }
.empty-icon { font-size: 44px; margin-bottom: 12px; }
.url-box { background: #f8fafc; border: 1px solid var(--border); border-radius: 6px; padding: 10px 14px; font-size: 12px; font-family: monospace; word-break: break-all; color: var(--info); }
.loading { display: flex; align-items: center; justify-content: center; padding: 60px; color: var(--text-muted); gap: 12px; }
.spinner { width: 22px; height: 22px; border: 3px solid var(--border); border-top-color: var(--orange); border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.success-page { text-align: center; padding: 56px 28px; }
.success-icon { width: 68px; height: 68px; background: var(--success); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 32px; margin: 0 auto 18px; animation: popIn 0.4s cubic-bezier(0.175,0.885,0.32,1.275); }
@keyframes popIn { from { transform: scale(0); } to { transform: scale(1); } }
.toast { position: fixed; bottom: 24px; right: 24px; background: var(--navy); color: white; padding: 12px 18px; border-radius: 8px; font-size: 13px; box-shadow: var(--shadow-lg); z-index: 9999; animation: slideUp 0.3s ease; max-width: 320px; border-left: 4px solid var(--orange); }
.toast.toast-success { background: #166534; border-left-color: #4ade80; }
.toast.toast-error { background: #991b1b; border-left-color: #f87171; }
@keyframes slideUp { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.section-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.section-title { font-family: 'Montserrat', sans-serif; font-size: 18px; font-weight: 700; color: var(--navy); }
.section-title span { color: var(--orange); }
.filters-bar { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; align-items: center; }
.filters-bar select, .filters-bar input { padding: 7px 12px; border: 1.5px solid var(--border); border-radius: 6px; font-size: 13px; font-family: 'Open Sans', sans-serif; outline: none; background: white; }
.filters-bar select:focus, .filters-bar input:focus { border-color: var(--orange); }
.doc-instructions { background: #fffbeb; border: 1px solid #fcd34d; border-radius: 6px; padding: 12px 16px; font-size: 13px; color: #78350f; margin-bottom: 16px; }
.doc-instructions strong { display: block; margin-bottom: 4px; color: #92400e; font-family: 'Montserrat', sans-serif; font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px; }

/* PAGE HERO (signing) */
.page-hero { background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 100%); color: white; padding: 24px 32px; }
.page-hero-title { font-family: 'Montserrat', sans-serif; font-size: 20px; font-weight: 700; margin-bottom: 4px; }
.page-hero-sub { color: rgba(255,255,255,0.7); font-size: 13px; }
.page-hero-accent { color: var(--orange); font-weight: 700; }

/* SIGNING PAGE (no sidebar) */
.signing-layout { min-height: 100vh; background: var(--bg); }
.signing-header { background: var(--navy); height: 56px; display: flex; align-items: center; padding: 0 28px; gap: 14px; }
.signing-header img { height: 28px; filter: brightness(0) invert(1); }
.signing-header-div { width: 1px; height: 24px; background: rgba(255,255,255,0.2); }
.signing-header-title { font-family: 'Montserrat', sans-serif; font-size: 12px; font-weight: 600; color: rgba(255,255,255,0.7); text-transform: uppercase; letter-spacing: 1px; }
.signing-footer { background: var(--navy); color: rgba(255,255,255,0.4); text-align: center; padding: 14px; font-size: 12px; }
.signing-footer a { color: var(--orange); text-decoration: none; }

@media (max-width: 900px) {
  .sidebar { transform: translateX(-100%); }
  .main { margin-left: 0; }
  .stats-grid { grid-template-columns: repeat(2,1fr); }
  .split-grid { grid-template-columns: 1fr; }
  .login-left { display: none; }
  .signer-row { grid-template-columns: 28px 1fr auto; }
  .signer-row .signer-email { display: none; }
}