/* ============================================================
   Aman Foundation — Auth Pages Stylesheet
   Matches Impact Portal dashboard palette & design language
   ============================================================ */

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

:root {
  --brand-dark:    #0d4a38;
  --brand-mid:     #1a7a5e;
  --brand-primary: #1d8c6b;
  --brand-light:   #26a67e;
  --brand-accent:  #2ec090;
  --brand-tint:    #e8f6f2;
  --brand-tint2:   #d0ede5;

  --text-primary:   #111827;
  --text-secondary: #6b7280;
  --text-muted:     #9ca3af;

  --surface:        #ffffff;
  --surface-alt:    #f9fafb;
  --border:         #e5e7eb;
  --border-focus:   #1d8c6b;

  --error:          #dc2626;
  --error-tint:     #fef2f2;
  --success:        #059669;

  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  16px;
  --radius-xl:  24px;

  --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,.10);
  --shadow-lg:  0 8px 40px rgba(0,0,0,.14);

  --font-body:    'DM Sans', sans-serif;
  --font-display: 'DM Serif Display', serif;
}

html, body {
  height: 100%;
  font-family: var(--font-body);
  color: var(--text-primary);
  background: var(--surface-alt);
  -webkit-font-smoothing: antialiased;
}

/* ── Layout ─────────────────────────────────────────────── */
.split-layout {
  display: flex;
  min-height: 100vh;
}

/* ── Brand Panel (Left) ──────────────────────────────────── */
.brand-panel {
  width: 420px;
  min-width: 340px;
  flex-shrink: 0;
  background: linear-gradient(160deg, var(--brand-dark) 0%, var(--brand-mid) 60%, var(--brand-light) 100%);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.brand-panel__inner {
  position: relative;
  z-index: 2;
  padding: 40px 44px;
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 100vh;
}

/* Decorative circles */
.brand-panel__decoration {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
.brand-panel__decoration::before {
  content: '';
  position: absolute;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.10);
  bottom: -120px;
  right: -100px;
}
.brand-panel__decoration::after {
  content: '';
  position: absolute;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.08);
  bottom: -20px;
  right: 40px;
}

/* Logo */
.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 60px;
}
.logo-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}
.logo-icon svg { width: 100%; height: 100%; }
.brand-name {
  font-size: 15px;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: -0.01em;
}
.brand-subtitle {
  font-size: 12px;
  color: rgba(255,255,255,.6);
  margin-top: 1px;
}

/* Hero text */
.brand-hero { flex: 1; }
.brand-headline {
  font-family: var(--font-display);
  font-size: 38px;
  line-height: 1.15;
  color: #ffffff;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.brand-desc {
  font-size: 14px;
  line-height: 1.65;
  color: rgba(255,255,255,.72);
  max-width: 300px;
}

/* Stats row */
.stats-row {
  display: flex;
  gap: 10px;
  margin-top: 44px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.stat-chip {
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  flex: 1;
  min-width: 80px;
}
.stat-num {
  display: block;
  font-size: 18px;
  font-weight: 700;
  color: #ffffff;
  line-height: 1;
  margin-bottom: 4px;
}
.stat-label {
  display: block;
  font-size: 11px;
  color: rgba(255,255,255,.6);
}

/* Onboarding Steps (register) */
.onboard-steps {
  margin-top: 48px;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.step {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  opacity: .5;
  transition: opacity .2s;
}
.step.active { opacity: 1; }
.step-dot {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(255,255,255,.15);
  border: 1.5px solid rgba(255,255,255,.35);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.step.active .step-dot {
  background: rgba(255,255,255,.25);
  border-color: rgba(255,255,255,.7);
}
.step-title {
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 2px;
}
.step-desc {
  font-size: 12px;
  color: rgba(255,255,255,.6);
}
.step-connector {
  width: 1.5px;
  height: 20px;
  background: rgba(255,255,255,.2);
  margin-left: 13px;
}

/* ── Form Panel (Right) ──────────────────────────────────── */
.form-panel {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 32px;
  overflow-y: auto;
}

.form-panel__inner {
  width: 100%;
  max-width: 440px;
}

.form-header {
  margin-bottom: 32px;
}
.form-title {
  font-family: var(--font-display);
  font-size: 30px;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}
.form-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
}

/* ── Form Elements ───────────────────────────────────────── */
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

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

.form-group label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.forgot-link {
  font-size: 12px;
  font-weight: 500;
  color: var(--brand-primary);
  text-decoration: none;
  transition: color .15s;
}
.forgot-link:hover { color: var(--brand-dark); text-decoration: underline; }

/* Input wrapper */
.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: 12px;
  display: flex;
  align-items: center;
  color: var(--text-muted);
  pointer-events: none;
  transition: color .15s;
}
.input-icon svg { width: 16px; height: 16px; }

.input-wrapper input,
.input-wrapper select {
  width: 100%;
  padding: 11px 40px 11px 38px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--text-primary);
  background: var(--surface);
  transition: border-color .15s, box-shadow .15s, background .15s;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
}

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

.input-wrapper input:focus,
.input-wrapper select:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(29,140,107,.12);
  background: var(--surface);
}
.input-wrapper:focus-within .input-icon { color: var(--brand-primary); }

/* Error state */
.input-wrapper.has-error input,
.input-wrapper.has-error select {
  border-color: var(--error);
  background: var(--error-tint);
}
.input-wrapper.has-error .input-icon { color: var(--error); }

.input-error-icon {
  position: absolute;
  right: 12px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--error);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  display: none;
  align-items: center;
  justify-content: center;
}
.input-wrapper.has-error .input-error-icon { display: flex; }

/* Valid state */
.input-wrapper.is-valid input {
  border-color: var(--success);
}

.field-error {
  font-size: 12px;
  color: var(--error);
  min-height: 16px;
  display: block;
}

/* Toggle password button */
.toggle-password {
  position: absolute;
  right: 12px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  padding: 0;
  transition: color .15s;
}
.toggle-password:hover { color: var(--text-secondary); }
.toggle-password svg { width: 16px; height: 16px; }

/* Select */
.select-wrapper select { padding-right: 40px; cursor: pointer; }
.select-arrow {
  position: absolute;
  right: 12px;
  pointer-events: none;
  color: var(--text-muted);
}
.select-arrow svg { width: 12px; height: 8px; }

/* Password strength */
.password-strength {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 6px;
}
.strength-track {
  flex: 1;
  height: 4px;
  background: var(--border);
  border-radius: 99px;
  overflow: hidden;
}
.strength-fill {
  height: 100%;
  width: 0;
  border-radius: 99px;
  transition: width .3s ease, background .3s ease;
}
.strength-fill.weak   { width: 33%; background: #ef4444; }
.strength-fill.fair   { width: 66%; background: #f59e0b; }
.strength-fill.strong { width: 100%; background: var(--success); }
.strength-label {
  font-size: 11px;
  font-weight: 600;
  min-width: 36px;
  color: var(--text-muted);
}
.strength-label.weak   { color: #ef4444; }
.strength-label.fair   { color: #f59e0b; }
.strength-label.strong { color: var(--success); }

/* Form options / checkbox */
.form-options {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  line-height: 1.5;
}
.checkbox-label input[type="checkbox"] { display: none; }
.checkbox-custom {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 1px;
  border: 1.5px solid var(--border);
  border-radius: 4px;
  background: var(--surface);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .15s, border-color .15s;
}
.checkbox-label input:checked + .checkbox-custom {
  background: var(--brand-primary);
  border-color: var(--brand-primary);
}
.checkbox-label input:checked + .checkbox-custom::after {
  content: '';
  display: block;
  width: 5px;
  height: 9px;
  border: 2px solid #fff;
  border-top: none;
  border-left: none;
  transform: rotate(45deg) translate(-1px, -1px);
}
.checkbox-label a {
  color: var(--brand-primary);
  text-decoration: none;
  font-weight: 500;
}
.checkbox-label a:hover { text-decoration: underline; }

/* ── Buttons ─────────────────────────────────────────────── */
.btn-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 13px 20px;
  background: var(--brand-primary);
  color: #ffffff;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background .15s, transform .1s, box-shadow .15s;
  box-shadow: 0 2px 8px rgba(29,140,107,.3);
  position: relative;
}
.btn-primary:hover {
  background: var(--brand-dark);
  box-shadow: 0 4px 16px rgba(29,140,107,.35);
  transform: translateY(-1px);
}
.btn-primary:active { transform: translateY(0); }
.btn-primary.loading .btn-text { opacity: 0; }
.btn-primary.loading .btn-spinner { display: block; }

.btn-spinner {
  display: none;
  position: absolute;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .7s linear infinite;
}

.btn-secondary {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 12px 20px;
  background: transparent;
  color: var(--brand-primary);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  border: 1.5px solid var(--brand-tint2);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background .15s, border-color .15s;
}
.btn-secondary:hover {
  background: var(--brand-tint);
  border-color: var(--brand-primary);
}

/* Divider */
.form-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
  font-size: 12px;
}
.form-divider::before,
.form-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.form-footer {
  margin-top: 24px;
  font-size: 13px;
  color: var(--text-muted);
  text-align: center;
}
.form-footer a {
  color: var(--brand-primary);
  text-decoration: none;
  font-weight: 500;
}
.form-footer a:hover { text-decoration: underline; }

/* ── Success Modal ───────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.4);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 24px;
}
.modal-overlay.active { display: flex; }
.modal-card {
  background: var(--surface);
  border-radius: var(--radius-xl);
  padding: 48px 40px;
  max-width: 380px;
  width: 100%;
  text-align: center;
  box-shadow: var(--shadow-lg);
  animation: scaleIn .25s ease;
}
.modal-icon {
  display: flex;
  justify-content: center;
  margin-bottom: 20px;
}
.modal-icon svg { width: 64px; height: 64px; }
.modal-title {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.modal-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 28px;
}

/* ── Animations ──────────────────────────────────────────── */
@keyframes spin {
  to { transform: rotate(360deg); }
}
@keyframes scaleIn {
  from { opacity: 0; transform: scale(.94); }
  to   { opacity: 1; transform: scale(1); }
}

/* Page entry animation */
.form-panel__inner {
  animation: fadeUp .4s ease both;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 800px) {
  .split-layout { flex-direction: column; }
  .brand-panel  { width: 100%; min-height: 260px; }
  .brand-panel__inner { padding: 32px 28px; min-height: unset; }
  .brand-headline { font-size: 28px; }
  .stats-row, .onboard-steps { display: none; }
  .brand-hero { flex: unset; }
  .brand-logo { margin-bottom: 24px; }
  .form-panel { padding: 32px 20px; }
  .form-row   { grid-template-columns: 1fr; gap: 18px; }
}