/* =============================================
   LAYE — become-org.css
   Dark theme · responsive grid form
   ============================================= */

:root {
  --reg-bg:           #0a0806;
  --reg-surface:      rgba(255, 255, 255, 0.04);
  --reg-surface-alt:  rgba(255, 255, 255, 0.025);
  --reg-border:       rgba(255, 255, 255, 0.08);
  --reg-border-hi:    rgba(255, 255, 255, 0.13);
  --reg-text:         #f5ede8;
  --reg-text-muted:   rgba(245, 237, 232, 0.48);
  --reg-text-dim:     rgba(245, 237, 232, 0.22);
}

/* ── Base ────────────────────────────────────── */
body {
  background: var(--reg-bg);
  color: var(--reg-text);
  font-family: var(--font);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* ── Grain ───────────────────────────────────── */
.grain {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='.055'/%3E%3C/svg%3E");
  opacity: 0.45;
}

/* ── Orbs ────────────────────────────────────── */
.orbs { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.orb  { position: absolute; border-radius: 50%; filter: blur(90px); animation: orbDrift 20s ease-in-out infinite alternate; }
.orb--1 { width: 600px; height: 600px; background: radial-gradient(circle, rgba(206,73,42,.18) 0%, transparent 70%); top: -20%; left: -15%; animation-duration: 22s; }
.orb--2 { width: 450px; height: 450px; background: radial-gradient(circle, rgba(206,73,42,.11) 0%, transparent 70%); bottom: -10%; right: -8%; animation-duration: 28s; animation-direction: alternate-reverse; }
.orb--3 { width: 300px; height: 300px; background: radial-gradient(circle, rgba(180,100,60,.07) 0%, transparent 70%); top: 40%; left: 55%; animation-duration: 18s; }
.orb--4 { width: 220px; height: 220px; background: radial-gradient(circle, rgba(206,73,42,.06) 0%, transparent 70%); top: 25%; left: 10%; animation-duration: 25s; animation-direction: alternate-reverse; }

@keyframes orbDrift {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(40px, 30px) scale(1.08); }
}

/* ── Header ──────────────────────────────────── */
.site-header {
  position: relative; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  height: 68px; padding: 0 var(--space-10); flex-shrink: 0;
  border-bottom: 1px solid var(--reg-border);
}
.site-header .logo {
  font-size: 1.375rem; font-weight: 800; letter-spacing: -0.02em;
  color: var(--reg-text); text-decoration: none;
  transition: color var(--transition-fast);
}
.site-header .logo:hover { color: var(--primary); }
.site-header .nav-link {
  font-size: 0.875rem; font-weight: 500;
  color: var(--reg-text-muted); text-decoration: none;
  transition: color var(--transition-fast);
}
.site-header .nav-link:hover { color: var(--reg-text); }

/* ── Main ────────────────────────────────────── */
.main {
  position: relative; z-index: 5;
  flex: 1;
  display: flex; align-items: flex-start; justify-content: center;
  padding: var(--space-10) var(--space-6) var(--space-16);
}

/* ── Wrapper ─────────────────────────────────── */
.register-wrapper {
  width: 100%;
  max-width: 720px;
  background: var(--reg-surface);
  border: 1px solid var(--reg-border);
  border-radius: var(--radius-2xl);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  padding: var(--space-10) var(--space-12);
  box-shadow:
    0 0 0 1px rgba(255,255,255,.03) inset,
    0 24px 64px rgba(0,0,0,.5);
  position: relative; overflow: hidden;
}

.register-wrapper::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent 0%, rgba(206,73,42,.55) 40%, rgba(255,255,255,.12) 65%, transparent 100%);
}

/* ── Panel header ────────────────────────────── */
.panel-header { margin-bottom: var(--space-8); }

.panel-eyebrow {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-size: 0.7rem; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--primary); margin-bottom: var(--space-3);
}
.panel-eyebrow::before {
  content: '';
  display: inline-block; width: 20px; height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary)); flex-shrink: 0;
}

.panel-title {
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 800; letter-spacing: -0.025em; line-height: 1.1;
  color: var(--reg-text); margin-bottom: var(--space-2);
}

.panel-subtitle {
  font-size: 0.9375rem; line-height: 1.6; color: var(--reg-text-muted);
}

/* ── Form error banner ───────────────────────── */
.form-error {
  display: flex; align-items: flex-start; gap: var(--space-3);
  padding: var(--space-3) var(--space-4); margin-bottom: var(--space-5);
  background: rgba(239,68,68,.08); border: 1px solid rgba(239,68,68,.28);
  border-radius: var(--radius-lg);
  font-size: 0.875rem; font-weight: 500; color: #f87171; line-height: 1.5;
  animation: fadeSlideIn .2s ease forwards;
}
.form-error[hidden] { display: none; }
.form-error svg { flex-shrink: 0; margin-top: 2px; }

/* ── Form ────────────────────────────────────── */
.form { display: flex; flex-direction: column; gap: var(--space-6); }

/* ── Fieldset section ────────────────────────── */
.form-section {
  border: none; padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: var(--space-4);
}

.form-section__legend {
  font-size: 0.7rem; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--reg-text-dim);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--reg-border);
  width: 100%; margin-bottom: var(--space-1);
  float: left; /* makes legend behave inside flex */
}

/* ── Responsive grid ─────────────────────────── */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4) var(--space-4);
  align-items: start;
}

/* Variant 3-col for org section (2+1) */
.form-grid--3col {
  grid-template-columns: repeat(3, 1fr);
}

/* Full-width field inside any grid */
.field--full  { grid-column: 1 / -1; }
/* 2-col span in 3-col grid */
.field--span2 { grid-column: span 2; }

/* ── Field ───────────────────────────────────── */
.field { display: flex; flex-direction: column; gap: var(--space-2); min-width: 0; }

.field__label {
  font-size: 0.8rem; font-weight: 600;
  color: var(--reg-text-muted); letter-spacing: 0.03em;
  white-space: nowrap;
}

.field__wrap { position: relative; display: flex; align-items: center; }

.field__icon {
  position: absolute; left: 13px;
  display: flex; align-items: center; color: var(--reg-text-dim);
  pointer-events: none; transition: color var(--transition-fast); z-index: 2;
}

.field__input {
  width: 100%; height: 44px;
  padding: 0 var(--space-8) 0 var(--space-8);
  font-family: var(--font); font-size: 0.9rem;
  color: var(--reg-text);
  background: rgba(255,255,255,.035);
  border: 1px solid var(--reg-border);
  border-radius: var(--radius-lg);
  outline: none;
  transition:
    border-color var(--transition-fast),
    background var(--transition-fast),
    box-shadow var(--transition-fast);
  -webkit-appearance: none;
}
.field__input::placeholder { color: var(--reg-text-dim); }

.field__input:focus {
  border-color: var(--primary);
  background: rgba(var(--primary-rgb), 0.04);
  box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1);
}

.field__wrap:focus-within .field__icon { color: var(--primary); }

.field__input--password { padding-right: 42px; }

/* Toggle eye */
.field__toggle {
  position: absolute; right: 12px;
  background: none; border: none; cursor: pointer;
  color: var(--reg-text-dim); display: flex; align-items: center;
  padding: 4px; border-radius: 4px; z-index: 2;
  transition: color var(--transition-fast);
}
.field__toggle:hover { color: var(--reg-text-muted); }

/* Validation states */
.field--error .field__input {
  border-color: var(--error);
  box-shadow: 0 0 0 3px rgba(239,68,68,.1);
}
.field--valid .field__input {
  border-color: rgba(34,197,94,.4);
}

.field__error {
  font-size: 0.775rem; font-weight: 500; color: var(--error);
  min-height: 1.1em; line-height: 1.3;
  opacity: 0; transform: translateY(-4px);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}
.field__error:not(:empty) { opacity: 1; transform: translateY(0); }

/* ── Password strength ───────────────────────── */
.strength {
  margin-top: var(--space-2);
  opacity: 0; transform: translateY(-6px);
  transition: opacity var(--transition-base), transform var(--transition-base);
  pointer-events: none; display: none;
}
.strength--visible { display: block; opacity: 1; transform: translateY(0); pointer-events: auto; }

.strength__bars { display: flex; gap: 4px; margin-bottom: var(--space-2); }
.strength__bar {
  flex: 1; height: 2px; border-radius: var(--radius-full);
  background: rgba(255,255,255,.1); transition: background var(--transition-slow);
}
.strength--1 .strength__bar[data-bar="0"] { background: var(--error); }
.strength--2 .strength__bar[data-bar="0"],
.strength--2 .strength__bar[data-bar="1"] { background: var(--warning); }
.strength--3 .strength__bar[data-bar="0"],
.strength--3 .strength__bar[data-bar="1"],
.strength--3 .strength__bar[data-bar="2"] { background: #8bc34a; }
.strength--4 .strength__bar { background: var(--success); }

.strength__checks { display: flex; flex-wrap: wrap; gap: 3px var(--space-4); }
.strength__check {
  display: flex; align-items: center; gap: 5px;
  font-size: 0.72rem; font-weight: 500; color: var(--reg-text-dim);
  transition: color var(--transition-fast);
}
.strength__check-dot {
  width: 5px; height: 5px; border-radius: 50%;
  background: rgba(255,255,255,.15); flex-shrink: 0;
  transition: background var(--transition-fast);
}
.strength__check--pass { color: var(--success); }
.strength__check--pass .strength__check-dot { background: var(--success); }

/* ── Submit button ───────────────────────────── */
.btn {
  position: relative;
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  height: 50px; padding: 0 var(--space-8);
  font-family: var(--font); font-size: 0.9375rem; font-weight: 600;
  border-radius: var(--radius-lg);
  width: 100%; overflow: hidden; border: none; cursor: pointer;
  background: var(--primary); color: #fff;
  box-shadow: 0 4px 20px rgba(var(--primary-rgb), 0.3);
  transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  margin-top: var(--space-2);
}
.btn:hover:not(:disabled) {
  background: var(--primary-light);
  box-shadow: 0 6px 28px rgba(var(--primary-rgb), 0.45);
  transform: translateY(-1px);
}
.btn:active:not(:disabled) { transform: translateY(0); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none !important; }

.btn__spinner {
  position: absolute; width: 20px; height: 20px;
  border: 2px solid rgba(255,255,255,.25); border-top-color: #fff;
  border-radius: 50%; animation: spin .65s linear infinite;
  opacity: 0; transition: opacity var(--transition-fast);
}
.btn--loading .btn__text,
.btn--loading .btn__arrow { opacity: 0; }
.btn--loading .btn__spinner { opacity: 1; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Legal ───────────────────────────────────── */
.legal {
  font-size: 0.8rem; color: var(--reg-text-dim);
  line-height: 1.6; text-align: center; margin-top: var(--space-3);
}
.legal a {
  color: var(--reg-text-muted); text-decoration: underline;
  text-underline-offset: 3px; transition: color var(--transition-fast);
}
.legal a:hover { color: var(--primary); }

/* ── Success state ───────────────────────────── */
.step-panel--hidden { display: none; }
.step-panel--entering { display: block; animation: panelIn .45s cubic-bezier(.4,0,.2,1) forwards; }

@keyframes panelIn {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.success-state {
  display: flex; flex-direction: column; align-items: center;
  text-align: center; padding: var(--space-8) 0;
}
.success-icon { width: 72px; height: 72px; color: var(--success); margin-bottom: var(--space-8); }
.success-icon__circle { stroke-dasharray: 157; stroke-dashoffset: 157; animation: drawCircle .6s cubic-bezier(.4,0,.2,1) .1s forwards; }
.success-icon__path   { stroke-dasharray: 40;  stroke-dashoffset: 40;  animation: drawCheck  .4s cubic-bezier(.4,0,.2,1) .65s forwards; }
@keyframes drawCircle { to { stroke-dashoffset: 0; } }
@keyframes drawCheck  { to { stroke-dashoffset: 0; } }

.success-msg  { max-width: 360px; margin: var(--space-3) auto 0; }
.btn--full { max-width: 280px; }

/* ── Animations ──────────────────────────────── */
@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Responsive ──────────────────────────────── */

/* Tablet : 3-col becomes 2-col */
@media (max-width: 680px) {
  .register-wrapper { padding: var(--space-8) var(--space-6) var(--space-10); border-radius: var(--radius-xl); }
  .form-grid--3col { grid-template-columns: repeat(2, 1fr); }
  .field--span2 { grid-column: 1 / -1; }
}

/* Mobile : toutes les grilles en 1 col */
@media (max-width: 480px) {
  .main { padding: var(--space-6) var(--space-4) var(--space-10); }
  .site-header { padding: 0 var(--space-5); }
  .register-wrapper { padding: var(--space-6) var(--space-5) var(--space-8); border-radius: var(--radius-xl); }
  .form-grid,
  .form-grid--3col { grid-template-columns: 1fr; }
  .field--span2,
  .field--full { grid-column: unset; }
  .panel-title { font-size: 1.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  .orb { animation: none; }
  * { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}

/* Mobile nav (hérité shared) */
.mobile-nav a {
  padding: 1rem 0 !important;
  font-size: 1.125rem !important;
  font-weight: 600 !important;
  border-bottom: 1px solid #f4f4f5 !important;
  text-decoration: none;
  color: #0f0f0f;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}