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

:root {
  --color-bg:           #0d0f10;
  --color-surface:      #141618;
  --color-surface-2:    #1c1f22;
  --color-border:       #252a2e;
  --color-border-focus: #16a34a;

  --color-text-primary:   #f0f2f4;
  --color-text-secondary: #8a9099;
  --color-text-muted:     #555d66;

  --color-accent:         #16a34a;
  --color-accent-hover:   #15803d;
  --color-accent-light:   rgba(22, 163, 74, 0.15);
  --color-accent-glow:    rgba(22, 163, 74, 0.25);

  --color-error:          #ef4444;
  --color-error-bg:       rgba(239, 68, 68, 0.08);

  --color-chip-bg:        #1c1f22;
  --color-chip-active:    rgba(22, 163, 74, 0.18);
  --color-chip-border:    #2d3338;
  --color-chip-active-border: #16a34a;

  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  14px;
  --radius-xl:  20px;

  --font:  'Inter', system-ui, sans-serif;
  --transition: 180ms ease;
}

html {
  font-family: var(--font);
  font-size: 16px;
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  line-height: 1.5;
}

/* ── Layout ──────────────────────────────────────────────────────────── */
.page-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.main-content {
  flex: 1;
  display: flex;
  justify-content: center;
  padding: 32px 16px 48px;
}

/* ── Header ──────────────────────────────────────────────────────────── */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-surface);
  position: sticky;
  top: 0;
  z-index: 10;
}

.logo-mark {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-text {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
}

.header-badge {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-accent);
  background: var(--color-accent-light);
  border: 1px solid rgba(22, 163, 74, 0.3);
  padding: 3px 10px;
  border-radius: 99px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ── Form Card ───────────────────────────────────────────────────────── */
.form-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 40px 40px 44px;
  width: 100%;
  max-width: 620px;
  box-shadow: 0 4px 40px rgba(0, 0, 0, 0.4);
}

.form-header {
  margin-bottom: 36px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--color-border);
}

.form-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 8px;
}

.form-subtitle {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* ── Field Groups ────────────────────────────────────────────────────── */
.field-group {
  margin-bottom: 28px;
  position: relative;
}

.field-label {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.label-hint {
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--color-text-muted);
  flex-shrink: 0;
}

/* ── Text Inputs ─────────────────────────────────────────────────────── */
.text-input {
  width: 100%;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-family: var(--font);
  font-size: 0.9375rem;
  padding: 11px 14px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  resize: none;
}

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

.text-input:hover {
  border-color: #3a4048;
}

.text-input:focus {
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.textarea {
  line-height: 1.6;
  min-height: 108px;
  max-height: 220px;
}

/* ── Chips (multi-select) ────────────────────────────────────────────── */
.chip-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  background: var(--color-chip-bg);
  border: 1px solid var(--color-chip-border);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  font-family: var(--font);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 8px 16px;
  cursor: pointer;
  transition:
    background var(--transition),
    border-color var(--transition),
    color var(--transition),
    transform 80ms ease,
    box-shadow var(--transition);
  user-select: none;
  white-space: nowrap;
}

.chip:hover {
  border-color: #3a4048;
  color: var(--color-text-primary);
  background: #222628;
}

.chip.active {
  background: var(--color-chip-active);
  border-color: var(--color-chip-active-border);
  color: #4ade80;
  box-shadow: 0 0 0 1px rgba(22, 163, 74, 0.2);
}

.chip:active {
  transform: scale(0.97);
}

/* ── Pills (single-select) ───────────────────────────────────────────── */
.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pill {
  background: var(--color-chip-bg);
  border: 1px solid var(--color-chip-border);
  border-radius: 99px;
  color: var(--color-text-secondary);
  font-family: var(--font);
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 7px 16px;
  cursor: pointer;
  transition:
    background var(--transition),
    border-color var(--transition),
    color var(--transition),
    transform 80ms ease,
    box-shadow var(--transition);
  user-select: none;
  white-space: nowrap;
}

.pill:hover {
  border-color: #3a4048;
  color: var(--color-text-primary);
  background: #222628;
}

.pill.active {
  background: var(--color-chip-active);
  border-color: var(--color-chip-active-border);
  color: #4ade80;
  box-shadow: 0 0 0 1px rgba(22, 163, 74, 0.2);
}

.pill:active {
  transform: scale(0.97);
}

/* ── Char counter ────────────────────────────────────────────────────── */
.char-counter {
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--color-text-muted);
  font-variant-numeric: tabular-nums;
  transition: color var(--transition);
}

.char-counter.near-limit {
  color: #f59e0b;
}

.char-counter.at-limit {
  color: var(--color-error);
}

/* ── Validation errors ───────────────────────────────────────────────── */
.field-error {
  display: block;
  font-size: 0.8rem;
  color: var(--color-error);
  margin-top: 6px;
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity var(--transition), transform var(--transition);
  pointer-events: none;
}

.field-group.has-error .text-input,
.field-group.has-error .textarea {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px var(--color-error-bg);
}

.field-group.has-error .chip-grid,
.field-group.has-error .pill-row {
  padding: 6px 8px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-error);
  background: var(--color-error-bg);
  margin: -6px -8px;
}

.field-group.has-error .field-error {
  opacity: 1;
  transform: translateY(0);
}

/* ── Submit button ───────────────────────────────────────────────────── */
.submit-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--color-accent);
  border: none;
  border-radius: var(--radius-md);
  color: #fff;
  font-family: var(--font);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 14px 24px;
  cursor: pointer;
  transition:
    background var(--transition),
    box-shadow var(--transition),
    transform 80ms ease;
  margin-top: 8px;
  letter-spacing: -0.01em;
}

.submit-btn:hover {
  background: var(--color-accent-hover);
  box-shadow: 0 0 0 4px var(--color-accent-glow);
}

.submit-btn:active {
  transform: scale(0.99);
}

.submit-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-icon {
  flex-shrink: 0;
  transition: transform var(--transition);
}

.submit-btn:hover .btn-icon {
  transform: translateX(3px);
}

/* ── Footer ──────────────────────────────────────────────────────────── */
.site-footer {
  text-align: center;
  padding: 20px 16px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border);
}

/* ── Responsive ──────────────────────────────────────────────────────── */
@media (max-width: 520px) {
  .form-card {
    padding: 28px 20px 32px;
    border-radius: var(--radius-lg);
  }

  .form-title {
    font-size: 1.35rem;
  }

  .site-header {
    padding: 14px 16px;
  }
}