/* ============================================================
   REQUEST TRACKER — Redesigned Stylesheet
   Direction: Editorial · Warm · Minimal · Confident
   ============================================================ */

/* Google Fonts are loaded via <link> preconnect in index.html for performance */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ============================================================
   DESIGN TOKENS
   ============================================================ */
:root {
  /* Backgrounds — warm, not clinical */
  --bg-base:    #F2F0EB;
  --bg-surface: #FAFAF7;
  --bg-card:    #FFFFFF;
  --bg-input:   #F7F6F2;

  /* Accent — vermillion/brick. Unusual for trackers, distinctive */
  --accent:       #C0422A;
  --accent-hover: #A83820;
  --accent-tint:  #FDEEE9;
  --accent-ring:  rgba(192, 66, 42, 0.14);

  /* Status — muted, not neon */
  --status-new:         #1D5FBF;
  --status-new-bg:      #E8F0FB;
  --status-review:      #6836B0;
  --status-review-bg:   #EEE8F9;
  --status-resolved:    #1A7A4A;
  --status-resolved-bg: #E2F5EC;
  --status-rejected:    #78787A;
  --status-rejected-bg: #F0F0F0;

  /* Priority */
  --prio-low:       #1A7A4A;
  --prio-low-bg:    #E2F5EC;
  --prio-medium:    #B25E0A;
  --prio-medium-bg: #FEF0DC;
  --prio-high:      #B52B1E;
  --prio-high-bg:   #FCDEDA;

  /* Typography */
  --text-primary:   #1A1917;
  --text-secondary: #4A4946;
  --text-muted:     #8C8A86;
  --text-faint:     #B8B6B2;

  /* Borders */
  --border:        #E0DDD7;
  --border-strong: #C8C5BF;
  --border-focus:  #C0422A;

  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;

  /* Radii — restrained. Sharp-ish, not bubbly */
  --radius-sm:   4px;
  --radius-md:   6px;
  --radius-lg:   10px;
  --radius-xl:   14px;
  --radius-pill: 999px;

  /* Shadows — barely there on light */
  --shadow-card:  0 1px 2px rgba(0,0,0,0.06), 0 2px 8px rgba(0,0,0,0.04);
  --shadow-hover: 0 2px 12px rgba(0,0,0,0.10);
  --shadow-modal: 0 20px 60px rgba(0,0,0,0.14), 0 4px 16px rgba(0,0,0,0.08);

  --t-fast:   120ms ease;
  --t-normal: 200ms ease;
  --t-slow:   340ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-base);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #CCC9C3; border-radius: 3px; }

/* ============================================================
   LAYOUT
   ============================================================ */

.app-wrapper {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* ============================================================
   HEADER — Editorial, bold
   ============================================================ */

.app-header {
  padding: var(--space-6) 0 var(--space-5);
  margin-bottom: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
}

.header-brand {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.brand-icon {
  width: 36px;
  height: 36px;
  background: var(--accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.brand-text h1 {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.4px;
  color: var(--text-primary);
  line-height: 1;
}

.brand-text p {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.1px;
}

/* ============================================================
   STATS BAR — Clean horizontal blocks, not puffed-up cards
   ============================================================ */

.stats-bar {
  display: flex;
  gap: 1px;
  margin-bottom: var(--space-8);
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.stat-card {
  flex: 1;
  background: var(--bg-card);
  padding: var(--space-5) var(--space-5) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  position: relative;
  transition: background var(--t-fast);
  cursor: default;
}

.stat-card:hover { background: var(--bg-surface); }

.stat-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: var(--space-5); right: var(--space-5);
  height: 2px;
  border-radius: 2px 2px 0 0;
}

.stat-card.new::after      { background: var(--status-new); }
.stat-card.review::after   { background: var(--status-review); }
.stat-card.resolved::after { background: var(--status-resolved); }
.stat-card.rejected::after { background: var(--status-rejected); }

.stat-value {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -1.5px;
  line-height: 1;
  color: var(--text-primary);
}

.stat-label {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ============================================================
   MAIN GRID
   ============================================================ */

.main-grid {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: var(--space-6);
  align-items: start;
  padding-bottom: var(--space-10);
}

/* ============================================================
   FORM PANEL
   ============================================================ */

.form-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  position: sticky;
  top: var(--space-5);
  box-shadow: var(--shadow-card);
}

.panel-header {
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--border);
}

.panel-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.3px;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.panel-title .icon {
  color: var(--accent);
  font-size: 14px;
}

.panel-subtitle {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: var(--space-1);
}

/* ---------- Form Groups ---------- */
.form-group { margin-bottom: var(--space-4); }

.form-label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.form-label .required { color: var(--accent); margin-left: 2px; }

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 13.5px;
  padding: 9px var(--space-3);
  outline: none;
  transition: border-color var(--t-fast), box-shadow var(--t-fast), background var(--t-fast);
}

.form-input::placeholder,
.form-textarea::placeholder { color: var(--text-faint); }

.form-input:hover,
.form-select:hover,
.form-textarea:hover { border-color: var(--border-strong); }

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  background: #fff;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-ring);
}

.form-input.error,
.form-select.error,
.form-textarea.error {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-ring);
}

.form-select {
  appearance: none;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' stroke='%238C8A86' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 11px center;
}

.form-select option { background: #fff; color: var(--text-primary); }

.form-textarea {
  resize: vertical;
  min-height: 88px;
  line-height: 1.6;
}

.field-error {
  font-size: 11px;
  color: var(--accent);
  margin-top: 5px;
  display: none;
  align-items: center;
  gap: 4px;
}

.field-error.visible { display: flex; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

/* ---------- Submit Button ---------- */
.btn-submit {
  width: 100%;
  margin-top: var(--space-5);
  padding: 11px var(--space-5);
  background: var(--accent);
  color: #fff;
  font-family: inherit;
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 0.1px;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--t-fast), transform var(--t-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

.btn-submit:hover  { background: var(--accent-hover); }
.btn-submit:active { transform: scale(0.99); }
.btn-submit.loading { opacity: 0.65; pointer-events: none; }

/* ============================================================
   REQUESTS PANEL
   ============================================================ */

.requests-panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

/* ---------- Controls Bar ---------- */
.controls-bar {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-4) var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  box-shadow: var(--shadow-card);
}

.controls-top { display: flex; align-items: center; gap: var(--space-3); }

.search-wrapper { position: relative; flex: 1; }

.search-icon {
  position: absolute;
  left: 11px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 13px;
  pointer-events: none;
}

.search-input {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 13.5px;
  padding: 9px var(--space-3) 9px 34px;
  outline: none;
  transition: border-color var(--t-fast), box-shadow var(--t-fast), background var(--t-fast);
}

.search-input::placeholder { color: var(--text-faint); }

.search-input:hover { border-color: var(--border-strong); }

.search-input:focus {
  background: #fff;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-ring);
}

.controls-filters {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.filter-label {
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--text-muted);
  white-space: nowrap;
}

.filter-select {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 12.5px;
  padding: 6px 28px 6px 10px;
  outline: none;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' stroke='%238C8A86' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 9px center;
  transition: border-color var(--t-fast);
}

.filter-select:hover  { border-color: var(--border-strong); }
.filter-select:focus  { border-color: var(--border-focus); outline: none; }
.filter-select option { background: #fff; }

.btn-clear-filters {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-family: inherit;
  font-size: 12px;
  padding: 6px 11px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: color var(--t-fast), border-color var(--t-fast), background var(--t-fast);
  white-space: nowrap;
}

.btn-clear-filters:hover {
  color: var(--text-primary);
  border-color: var(--border-strong);
  background: var(--bg-base);
}

/* ---------- List Meta ---------- */
.list-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: 0 2px;
}

.result-count {
  font-size: 12px;
  color: var(--text-muted);
}

.result-count strong {
  color: var(--text-primary);
  font-weight: 600;
}

.sort-group {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.sort-group label {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.3px;
}

/* ============================================================
   REQUEST CARDS — The centerpiece
   ============================================================ */

.requests-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--bg-card);
  box-shadow: var(--shadow-card);
}

/* Empty state sits outside the list */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-12) var(--space-6);
  text-align: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  gap: var(--space-4);
  box-shadow: var(--shadow-card);
}

.empty-icon { font-size: 40px; opacity: 0.3; }

.empty-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-secondary);
}

.empty-desc {
  font-size: 13px;
  color: var(--text-muted);
  max-width: 260px;
  line-height: 1.6;
}

/* Card separators */
.request-card + .request-card {
  border-top: 1px solid var(--border);
}

/* The card itself */
.request-card {
  position: relative;
  padding: var(--space-5) var(--space-5) var(--space-5) calc(var(--space-5) + 3px);
  background: var(--bg-card);
  transition: background var(--t-fast);
  animation: cardIn 0.25s ease both;
  overflow: hidden;
}

@keyframes cardIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.request-card:hover { background: var(--bg-surface); }

/* Priority bar — left edge */
.card-accent-bar {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
}

.card-accent-bar.low    { background: var(--prio-low); }
.card-accent-bar.medium { background: var(--prio-medium); }
.card-accent-bar.high   { background: var(--prio-high); }

/* Card top row: avatar + name + badges */
.card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.card-requester {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex: 1;
  min-width: 0;
}

.avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  letter-spacing: 0.3px;
}

/* Alternate avatar colors by first letter — feels handcrafted */
.avatar[data-hue="0"]  { background: #C0422A; }
.avatar[data-hue="1"]  { background: #1D5FBF; }
.avatar[data-hue="2"]  { background: #1A7A4A; }
.avatar[data-hue="3"]  { background: #6836B0; }
.avatar[data-hue="4"]  { background: #B25E0A; }

.requester-info { min-width: 0; }

.requester-name {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.requester-email {
  font-size: 11.5px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-badges {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

/* ---- Badges ---- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 10.5px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.2px;
  white-space: nowrap;
}

.badge.prio-low    { color: var(--prio-low);    background: var(--prio-low-bg); }
.badge.prio-medium { color: var(--prio-medium);  background: var(--prio-medium-bg); }
.badge.prio-high   { color: var(--prio-high);    background: var(--prio-high-bg); }

.badge.status-new      { color: var(--status-new);      background: var(--status-new-bg); }
.badge.status-review   { color: var(--status-review);   background: var(--status-review-bg); }
.badge.status-resolved { color: var(--status-resolved); background: var(--status-resolved-bg); }
.badge.status-rejected { color: var(--status-rejected); background: var(--status-rejected-bg); }

.badge.type-tag {
  color: var(--text-muted);
  background: var(--bg-base);
  border: 1px solid var(--border);
}

/* Card body */
.card-body { margin-bottom: var(--space-3); }

.card-meta-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: var(--space-2);
  flex-wrap: wrap;
}

.card-product {
  font-size: 11.5px;
  color: var(--accent);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 3px;
}

.meta-sep {
  width: 2px;
  height: 2px;
  border-radius: 50%;
  background: var(--text-faint);
  flex-shrink: 0;
}

.card-date {
  font-size: 11px;
  color: var(--text-faint);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.1px;
  margin-left: auto;
}

.card-message {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Card footer */
.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--border);
}

.status-control {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.status-label {
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  color: var(--text-faint);
}

.status-select {
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 12px;
  padding: 4px 22px 4px 8px;
  outline: none;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' stroke='%238C8A86' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 7px center;
  transition: border-color var(--t-fast), background var(--t-fast);
}

.status-select:hover  { border-color: var(--border-strong); background-color: var(--bg-input); }
.status-select:focus  { border-color: var(--border-focus); outline: none; }
.status-select option { background: #fff; }

.card-actions { display: flex; gap: var(--space-1); }

.btn-icon {
  width: 28px;
  height: 28px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: none;
  color: var(--text-faint);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  transition: color var(--t-fast), border-color var(--t-fast), background var(--t-fast);
}

.btn-icon:hover {
  color: var(--prio-high);
  border-color: var(--prio-high-bg);
  background: var(--prio-high-bg);
}

/* ============================================================
   TOAST NOTIFICATIONS
   ============================================================ */

.toast-container {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  z-index: 9999;
  pointer-events: none;
}

.toast {
  background: var(--text-primary);
  border-radius: var(--radius-md);
  padding: 10px var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 12.5px;
  font-weight: 500;
  color: #fff;
  box-shadow: var(--shadow-modal);
  animation: toastIn 0.28s cubic-bezier(0.34, 1.56, 0.64, 1) both;
  pointer-events: auto;
  max-width: 300px;
}

.toast.success { background: #1A7A4A; }
.toast.error   { background: var(--accent); }
.toast.info    { background: var(--text-primary); }

.toast-icon { font-size: 14px; flex-shrink: 0; }

@keyframes toastIn {
  from { opacity: 0; transform: translateY(8px) scale(0.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes toastOut {
  from { opacity: 1; transform: translateY(0) scale(1); }
  to   { opacity: 0; transform: translateY(6px) scale(0.96); }
}

.toast.removing { animation: toastOut 0.2s ease forwards; }

/* ============================================================
   CONFIRM DIALOG
   ============================================================ */

.dialog-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(26, 25, 23, 0.5);
  backdrop-filter: blur(3px);
  z-index: 9998;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--t-normal);
}

.dialog-backdrop.visible {
  opacity: 1;
  pointer-events: auto;
}

.dialog-box {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-8) var(--space-8) var(--space-6);
  max-width: 340px;
  width: 90%;
  box-shadow: var(--shadow-modal);
  transform: scale(0.96) translateY(8px);
  transition: transform var(--t-slow);
  text-align: center;
}

.dialog-backdrop.visible .dialog-box {
  transform: scale(1) translateY(0);
}

.dialog-icon { font-size: 32px; margin-bottom: var(--space-4); }

.dialog-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
  letter-spacing: -0.2px;
}

.dialog-desc {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: var(--space-6);
  line-height: 1.6;
}

.dialog-actions { display: flex; gap: var(--space-3); }

.btn-cancel {
  flex: 1;
  padding: 10px var(--space-4);
  background: var(--bg-input);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 13.5px;
  font-weight: 500;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--t-fast), border-color var(--t-fast);
}

.btn-cancel:hover {
  background: var(--bg-base);
  border-color: var(--border-strong);
}

.btn-danger {
  flex: 1;
  padding: 10px var(--space-4);
  background: var(--accent);
  border: none;
  color: #fff;
  font-family: inherit;
  font-size: 13.5px;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--t-fast);
}

.btn-danger:hover { background: var(--accent-hover); }

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 920px) {
  .main-grid {
    grid-template-columns: 1fr;
  }
  .form-panel { position: static; }
  .stats-bar  { flex-wrap: wrap; }
  .stat-card  { min-width: 140px; }
}

@media (max-width: 600px) {
  .app-wrapper { padding: 0 var(--space-4); }

  .stats-bar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background: none;
    gap: var(--space-3);
    border: none;
  }

  .stat-card {
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
  }

  .form-row { grid-template-columns: 1fr; }

  .controls-filters { flex-direction: column; align-items: flex-start; }

  .card-header { flex-direction: column; }

  .card-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }
}

/* ============================================================
   UTILITIES
   ============================================================ */

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
}

.spinner {
  width: 14px; height: 14px;
  border: 2px solid rgba(255,255,255,0.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

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