/* =============================================
   PEAK PROCESS PARTNERS — VENDOR PORTAL
   Design: Navy & Amber / Professional Invoice
   ============================================= */

:root {
  --navy:       #1B3A6B;
  --navy-dark:  #0F2347;
  --navy-light: #2A4F8F;
  --amber:      #F5A623;
  --amber-dark: #D4891A;
  --amber-pale: #FEF3DC;
  --white:      #FFFFFF;
  --gray-50:    #F8FAFC;
  --gray-100:   #F1F5F9;
  --gray-200:   #E2E8F0;
  --gray-300:   #CBD5E1;
  --gray-400:   #94A3B8;
  --gray-500:   #64748B;
  --gray-700:   #334155;
  --gray-900:   #0F172A;
  --green:      #16a34a;
  --green-pale: #dcfce7;
  --red:        #dc2626;
  --red-pale:   #fee2e2;
  --yellow-pale:#fef9c3;
  --shadow-sm:  0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md:  0 4px 16px rgba(0,0,0,.08), 0 2px 6px rgba(0,0,0,.05);
  --shadow-lg:  0 10px 40px rgba(0,0,0,.12), 0 4px 12px rgba(0,0,0,.06);
  --radius:     12px;
  --radius-sm:  8px;
  --radius-lg:  16px;
  --font:       'Inter', system-ui, sans-serif;
  --font-serif: 'DM Serif Display', Georgia, serif;
  --trans:      0.18s ease;
}

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

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

body {
  font-family: var(--font);
  color: var(--gray-900);
  background: var(--gray-50);
  line-height: 1.6;
}

/* ── Typography ── */
a { color: var(--navy); text-decoration: none; }
a:hover { text-decoration: underline; }

/* =============================================
   VENDOR PAGE LAYOUT
   ============================================= */
.vendor-body { background: var(--gray-50); }

/* Header */
.portal-header {
  background: var(--navy-dark);
  border-bottom: 3px solid var(--amber);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-logo { flex-shrink: 0; }
.brand-text { display: flex; flex-direction: column; }
.brand-name {
  font-size: .95rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -.01em;
}
.brand-sub {
  font-size: .75rem;
  color: var(--amber);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .06em;
}
.admin-link {
  font-size: .8rem;
  color: var(--gray-300);
  font-weight: 500;
  transition: color var(--trans);
  text-decoration: none;
}
.admin-link:hover { color: var(--amber); text-decoration: none; }

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 60%, var(--navy-light) 100%);
  padding: 52px 24px 44px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--amber), transparent);
}
.hero-inner { max-width: 600px; margin: 0 auto; }
.hero-eyebrow {
  font-size: .75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--amber);
  margin-bottom: 10px;
}
.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 2.8rem);
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 12px;
}
.hero-desc {
  font-size: .95rem;
  color: rgba(255,255,255,.75);
  max-width: 480px;
  margin: 0 auto;
}

/* Form Section */
.form-section {
  max-width: 760px;
  margin: 0 auto;
  padding: 40px 24px 60px;
}
.form-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 40px;
  border: 1px solid var(--gray-200);
}

/* =============================================
   SHARED FORM COMPONENTS
   ============================================= */
.form-grid { display: flex; flex-direction: column; gap: 24px; }

.form-section-label {
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--amber-dark);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--gray-200);
  margin-top: 8px;
}

.field-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.field { display: flex; flex-direction: column; gap: 6px; }

.field-label {
  font-size: .82rem;
  font-weight: 600;
  color: var(--gray-700);
}
.req { color: var(--red); margin-left: 2px; }

.field-input {
  height: 44px;
  padding: 0 14px;
  border: 1.5px solid var(--gray-300);
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: .92rem;
  color: var(--gray-900);
  background: var(--white);
  outline: none;
  transition: border-color var(--trans), box-shadow var(--trans);
  width: 100%;
}
.field-input:focus {
  border-color: var(--navy);
  box-shadow: 0 0 0 3px rgba(27,58,107,.1);
}
.field-input::placeholder { color: var(--gray-400); }

.field-select { appearance: none; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2364748B' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 38px;
}

.field-textarea {
  height: auto;
  min-height: 90px;
  padding: 12px 14px;
  resize: vertical;
  font-family: var(--font);
  font-size: .92rem;
  line-height: 1.5;
}

/* Amount field */
.amount-wrap { position: relative; }
.amount-symbol {
  position: absolute;
  left: 14px; top: 50%;
  transform: translateY(-50%);
  color: var(--gray-500);
  font-weight: 600;
  font-size: .92rem;
  pointer-events: none;
}
.amount-input { padding-left: 28px; }

/* Upload Zone */
.upload-zone {
  border: 2px dashed var(--gray-300);
  border-radius: var(--radius);
  padding: 36px 24px;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--trans), background var(--trans);
  position: relative;
}
.upload-zone:hover,
.upload-zone.drag-over {
  border-color: var(--navy);
  background: var(--gray-50);
}
.upload-zone.has-file {
  border-color: var(--green);
  background: var(--green-pale);
}
.upload-icon { margin-bottom: 12px; }
.upload-text {
  font-size: .9rem;
  color: var(--gray-700);
  margin-bottom: 4px;
}
.upload-link { color: var(--navy); font-weight: 600; cursor: pointer; }
.upload-hint { font-size: .78rem; color: var(--gray-400); }
.upload-preview {
  margin-top: 12px;
  font-size: .85rem;
  font-weight: 600;
  color: var(--green);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

/* Submit Button */
.form-footer {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.btn-submit {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--navy);
  color: var(--white);
  border: none;
  border-radius: var(--radius-sm);
  padding: 13px 32px;
  font-family: var(--font);
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--trans), transform var(--trans), box-shadow var(--trans);
  box-shadow: 0 4px 14px rgba(27,58,107,.3);
}
.btn-submit:hover {
  background: var(--navy-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(27,58,107,.35);
}
.btn-submit:active { transform: translateY(0); }
.btn-full { width: 100%; justify-content: center; }
.form-note { font-size: .78rem; color: var(--gray-400); }

/* Alerts */
.alert {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 16px;
  border-radius: var(--radius-sm);
  font-size: .88rem;
  font-weight: 500;
  margin-bottom: 24px;
}
.alert-success { background: var(--green-pale); color: #15803d; border: 1px solid #bbf7d0; }
.alert-error   { background: var(--red-pale);   color: #b91c1c; border: 1px solid #fecaca; }

/* Footer */
.portal-footer {
  text-align: center;
  padding: 24px;
  font-size: .78rem;
  color: var(--gray-400);
  border-top: 1px solid var(--gray-200);
}

/* =============================================
   LOGIN PAGE
   ============================================= */
.login-body {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.login-wrap { width: 100%; max-width: 420px; }
.login-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 40px;
}
.login-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--gray-200);
}
.login-brand-text { display: flex; flex-direction: column; }
.login-brand-name { font-size: .95rem; font-weight: 700; color: var(--gray-900); }
.login-brand-role { font-size: .75rem; color: var(--gray-400); font-weight: 500; }
.login-title {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  color: var(--navy);
  margin-bottom: 6px;
}
.login-sub { font-size: .88rem; color: var(--gray-400); margin-bottom: 24px; }
.login-form { display: flex; flex-direction: column; gap: 16px; }
.pw-wrap { position: relative; }
.pw-wrap .field-input { padding-right: 44px; }
.pw-toggle {
  position: absolute;
  right: 12px; top: 50%;
  transform: translateY(-50%);
  background: none; border: none;
  cursor: pointer; padding: 4px;
  color: var(--gray-400);
}
.login-back {
  text-align: center;
  margin-top: 20px;
  font-size: .82rem;
  color: var(--gray-400);
}
.login-back a { color: var(--navy); }

/* =============================================
   ADMIN DASHBOARD LAYOUT
   ============================================= */
.admin-body {
  display: flex;
  min-height: 100vh;
  background: var(--gray-100);
}

/* Sidebar */
.sidebar {
  width: 240px;
  background: var(--navy-dark);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0;
  height: 100vh;
  z-index: 50;
  border-right: 1px solid rgba(255,255,255,.06);
}
.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 24px 20px 20px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.sidebar-brand-name { font-size: .88rem; font-weight: 700; color: var(--white); }
.sidebar-brand-sub  { font-size: .72rem; color: var(--amber); font-weight: 500; }

.sidebar-nav {
  flex: 1;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: .85rem;
  font-weight: 500;
  color: rgba(255,255,255,.6);
  transition: background var(--trans), color var(--trans);
  text-decoration: none;
}
.nav-item:hover, .nav-active {
  background: rgba(255,255,255,.08);
  color: var(--white);
  text-decoration: none;
}
.nav-active { color: var(--amber) !important; }

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 20px;
  border-top: 1px solid rgba(255,255,255,.08);
}
.user-avatar {
  width: 34px; height: 34px;
  background: var(--amber);
  color: var(--navy-dark);
  border-radius: 50%;
  font-size: .85rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.user-info { flex: 1; }
.user-name { font-size: .82rem; font-weight: 600; color: var(--white); }
.user-role { font-size: .7rem; color: var(--gray-400); }
.logout-btn {
  color: rgba(255,255,255,.4);
  padding: 4px;
  border-radius: 4px;
  transition: color var(--trans);
}
.logout-btn:hover { color: var(--red); }

/* Admin Main */
.admin-main {
  margin-left: 240px;
  flex: 1;
  padding: 32px;
  max-width: 100%;
}

.admin-topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 28px;
  gap: 16px;
  flex-wrap: wrap;
}
.admin-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--gray-900);
  font-family: var(--font-serif);
}
.admin-subtitle { font-size: .85rem; color: var(--gray-500); margin-top: 2px; }

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.filter-select { height: 38px; font-size: .85rem; min-width: 170px; }

.btn-export {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--amber);
  color: var(--navy-dark);
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  font-size: .85rem;
  font-weight: 700;
  text-decoration: none;
  transition: background var(--trans), transform var(--trans);
  white-space: nowrap;
}
.btn-export:hover { background: var(--amber-dark); text-decoration: none; transform: translateY(-1px); }

/* Stat Cards */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}
.stat-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 22px 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  border-left: 4px solid var(--navy);
}
.stat-card-accent { border-left-color: var(--amber); }
.stat-label { font-size: .75rem; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; color: var(--gray-400); margin-bottom: 6px; }
.stat-value { font-size: 1.9rem; font-weight: 700; color: var(--navy); line-height: 1.1; margin-bottom: 4px; }
.stat-card-accent .stat-value { color: var(--amber-dark); }
.stat-hint { font-size: .75rem; color: var(--gray-400); }

/* Section Card */
.section-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  margin-bottom: 24px;
}
.section-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 18px;
}

/* Table */
.table-wrap { overflow-x: auto; }
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .85rem;
}
.data-table th {
  text-align: left;
  padding: 10px 14px;
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--gray-400);
  border-bottom: 2px solid var(--gray-200);
  white-space: nowrap;
}
.data-table td {
  padding: 13px 14px;
  border-bottom: 1px solid var(--gray-100);
  color: var(--gray-700);
  vertical-align: middle;
}
.data-table tbody tr:hover { background: var(--gray-50); }
.data-table tfoot td {
  padding: 14px 14px;
  border-top: 2px solid var(--gray-200);
  color: var(--gray-900);
}
.amount-cell { font-weight: 600; color: var(--navy); font-variant-numeric: tabular-nums; }

.vendor-cell { display: flex; flex-direction: column; }
.vendor-name { font-weight: 600; color: var(--gray-900); }
.vendor-email { font-size: .78rem; color: var(--gray-400); }

/* Badges */
.badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 20px;
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.badge-pending  { background: var(--yellow-pale); color: #854d0e; }
.badge-approved { background: var(--green-pale);  color: #15803d; }
.badge-rejected { background: var(--red-pale);    color: #b91c1c; }

/* Action Buttons */
.action-btns { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.icon-btn {
  width: 30px; height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  border: 1.5px solid var(--gray-200);
  background: var(--white);
  color: var(--gray-500);
  cursor: pointer;
  transition: all var(--trans);
  text-decoration: none;
}
.icon-btn-download:hover { border-color: var(--navy); color: var(--navy); background: #EEF2FF; }
.icon-btn-delete:hover   { border-color: var(--red); color: var(--red); background: var(--red-pale); }

.status-select {
  font-family: var(--font);
  font-size: .78rem;
  padding: 4px 8px;
  border: 1.5px solid var(--gray-300);
  border-radius: 6px;
  cursor: pointer;
  color: var(--gray-700);
  background: var(--white);
  height: 28px;
}
.invoice-notes {
  font-size: .72rem;
  color: var(--gray-400);
  margin-top: 4px;
  cursor: help;
}

.btn-sm {
  display: inline-block;
  padding: 5px 12px;
  background: var(--navy);
  color: var(--white);
  border-radius: 6px;
  font-size: .78rem;
  font-weight: 600;
  text-decoration: none;
  transition: background var(--trans);
}
.btn-sm:hover { background: var(--navy-dark); text-decoration: none; }
.btn-sm-outline {
  background: transparent;
  color: var(--navy);
  border: 1.5px solid var(--navy);
}
.btn-sm-outline:hover { background: var(--navy); color: var(--white); }

/* Empty State */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 48px 24px;
  color: var(--gray-400);
  font-size: .9rem;
}

/* Month filter form inline */
.month-filter-form { display: inline-flex; }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); transition: transform .25s ease; }
  .admin-main { margin-left: 0; padding: 20px; }

  .field-group { grid-template-columns: 1fr; }
  .form-card { padding: 24px; }

  .admin-topbar { flex-direction: column; align-items: stretch; }
  .topbar-actions { justify-content: flex-end; }

  .stat-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .stat-grid { grid-template-columns: 1fr; }
  .hero { padding: 36px 16px 32px; }
  .form-section { padding: 24px 16px 48px; }
}