/* ============================================================
   NotiViz — Public Base Styles
   Shared across all public-facing pages (landing, signup, etc.)
   ============================================================ */

/* ── Tokens ────────────────────────────────────────────────── */
:root {
  --nv-primary:       #1565C0;
  --nv-primary-dark:  #0D47A1;
  --nv-primary-light: #1976D2;
  --nv-accent:        #29B6F6;
  --nv-accent-light:  #B3E5FC;
  --nv-text:          #0F172A;
  --nv-muted:         #64748B;
  --nv-bg:            #F8FAFC;
  --nv-surface:       #FFFFFF;
  --nv-border:        #E2E8F0;
  --nv-success:       #10B981;
  --nv-danger:        #EF4444;
  --nv-radius:        14px;
  --nv-shadow:        0 4px 24px rgba(21,101,192,.10);
  --nv-shadow-lg:     0 16px 56px rgba(21,101,192,.16);
}

/* ── Scrollbar ─────────────────────────────────────────────── */
::-webkit-scrollbar              { width: 6px; height: 6px; }
::-webkit-scrollbar-track        { background: #E2E8F0; border-radius: 99px; }
::-webkit-scrollbar-thumb        { background: #1565C0; border-radius: 99px; }
::-webkit-scrollbar-thumb:hover  { background: #0D47A1; }
*                                { scrollbar-width: thin; scrollbar-color: #1565C0 #E2E8F0; }

/* ── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', system-ui, sans-serif; color: var(--nv-text); background: var(--nv-bg); line-height: 1.6; }

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: .5rem; padding: .7rem 1.5rem; border-radius: 10px;
  font-weight: 600; font-size: .9rem; cursor: pointer;
  text-decoration: none; border: none; font-family: inherit;
  transition: all .22s;
}
.btn-primary { background: var(--nv-primary); color: #fff; }
.btn-primary:hover { background: var(--nv-primary-dark); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(21,101,192,.35); }
.btn-primary:disabled { opacity: .5; cursor: not-allowed; transform: none; box-shadow: none; }
.btn-outline { background: transparent; color: var(--nv-primary); border: 2px solid var(--nv-primary); padding-top: calc(.7rem - 2px); padding-bottom: calc(.7rem - 2px); }
.btn-outline:hover { background: var(--nv-primary); color: #fff; transform: translateY(-1px); }
.btn-white { background: #fff; color: var(--nv-primary); font-weight: 700; }
.btn-white:hover { background: #EFF6FF; transform: translateY(-2px); box-shadow: 0 8px 28px rgba(0,0,0,.12); }
.btn-ghost-white { background: rgba(255,255,255,.12); color: #fff; border: 2px solid rgba(255,255,255,.3); padding-top: calc(.7rem - 2px); padding-bottom: calc(.7rem - 2px); }
.btn-ghost-white:hover { background: rgba(255,255,255,.22); transform: translateY(-2px); }
.btn-ghost { background: transparent; color: var(--nv-muted); border: 1.5px solid var(--nv-border); }
.btn-ghost:hover { border-color: var(--nv-primary); color: var(--nv-primary); }
.btn-lg { padding: .85rem 2rem; font-size: 1rem; border-radius: 12px; }

/* ── Spinner ───────────────────────────────────────────────── */
@keyframes spin { to { transform: rotate(360deg); } }

.spinner { width: 18px; height: 18px; border: 2.5px solid rgba(255,255,255,.4); border-top-color: #fff; border-radius: 50%; animation: spin .7s linear infinite; display: none; }
.spinner.show { display: block; }
.btn-spin { display: inline-block; width: 15px; height: 15px; border: 2px solid rgba(255,255,255,.35); border-top-color: #fff; border-radius: 50%; animation: spin .65s linear infinite; vertical-align: middle; }

/* ── Toast ─────────────────────────────────────────────────── */
.toast { position: fixed; bottom: 1.5rem; left: 50%; transform: translateX(-50%) translateY(2rem); background: #1E293B; color: #fff; padding: .75rem 1.5rem; border-radius: 10px; font-size: .88rem; font-weight: 500; opacity: 0; transition: all .3s; z-index: 1000; max-width: 90vw; text-align: center; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.error { background: var(--nv-danger); }

/* ═══════════════════════════════════════════════════════════
   Utilitaires CSS — à utiliser à la place des styles inline
   ═══════════════════════════════════════════════════════════ */

/* ── Display ── */
.hidden        { display: none; }
.d-flex        { display: flex; }
.d-grid        { display: grid; }
.d-block       { display: block; }
.d-inline-flex { display: inline-flex; }

/* ── Flexbox ── */
.flex-col        { flex-direction: column; }
.items-center    { align-items: center; }
.items-start     { align-items: flex-start; }
.justify-center  { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end     { justify-content: flex-end; }
.flex-wrap       { flex-wrap: wrap; }
.flex-1          { flex: 1; }
.flex-shrink-0   { flex-shrink: 0; }
.min-w-0         { min-width: 0; }
.gap-1 { gap: .25rem; }
.gap-2 { gap: .5rem; }
.gap-3 { gap: .75rem; }
.gap-4 { gap: 1rem; }
.gap-5 { gap: 1.25rem; }
.gap-6 { gap: 1.5rem; }

/* ── Margin ── */
.m-0  { margin: 0; }
.mt-2 { margin-top: .5rem; }
.mt-3 { margin-top: .75rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mb-2 { margin-bottom: .5rem; }
.mb-3 { margin-bottom: .75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-5 { margin-bottom: 1.25rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mr-1 { margin-right: .25rem; }
.mr-2 { margin-right: .5rem; }
.ml-auto { margin-left: auto; }

/* ── Padding ── */
.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }

/* ── Typography ── */
.text-xs   { font-size: .75rem; }
.text-sm   { font-size: .85rem; }
.text-base { font-size: .875rem; }
.fw-400    { font-weight: 400; }
.fw-600    { font-weight: 600; }
.fw-700    { font-weight: 700; }
.fw-800    { font-weight: 800; }
.text-center { text-align: center; }
.text-left   { text-align: left; }
.text-right  { text-align: right; }

/* ── Couleurs ── */
.text-muted   { color: var(--nv-muted); }
.text-primary { color: var(--nv-primary); }
.text-danger  { color: var(--nv-danger); }
.text-success { color: var(--nv-success); }
.text-white   { color: #fff; }

/* ── Misc ── */
.resize-y        { resize: vertical; }
.w-full          { width: 100%; }
.overflow-hidden { overflow: hidden; }
.cursor-pointer  { cursor: pointer; }
.link-underline  { color: inherit; text-decoration: underline; text-underline-offset: 2px; }

/* ── Modal (formulaire de contact) ───────────────────────── */
.modal-overlay { position:fixed;inset:0;background:rgba(15,23,42,.55);backdrop-filter:blur(5px);z-index:200;display:flex;align-items:center;justify-content:center;padding:1rem;opacity:0;visibility:hidden;transition:opacity .28s,visibility .28s; }
.modal-overlay.open { opacity:1;visibility:visible; }
.modal { background:#fff;border-radius:20px;width:100%;max-width:540px;box-shadow:0 32px 80px rgba(0,0,0,.22);transform:translateY(24px) scale(.96);transition:transform .35s cubic-bezier(.34,1.4,.64,1);max-height:92vh;overflow-y:auto; }
.modal-overlay.open .modal { transform:none; }
.modal-header { padding:1.75rem 2rem 1.25rem;border-bottom:1px solid var(--nv-border);display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;background:#fff;z-index:1;border-radius:20px 20px 0 0; }
.modal-header h3 { font-size:1.15rem;font-weight:800;letter-spacing:-.03em;margin:0; }
.modal-close { width:32px;height:32px;border:none;background:var(--nv-bg);border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--nv-muted);font-size:1rem;transition:all .2s;flex-shrink:0; }
.modal-close:hover { background:var(--nv-border);color:var(--nv-text); }
.modal-body { padding:1.5rem 2rem 2rem; }
.form-group { margin-bottom:1rem; }
.form-label { display:block;font-size:.82rem;font-weight:600;margin-bottom:.35rem; }
.form-label .req { color:#EF4444; }
.form-input,.form-textarea { width:100%;padding:.65rem .9rem;border:1.5px solid var(--nv-border);border-radius:10px;font-size:.9rem;font-family:inherit;color:var(--nv-text);background:#fff;transition:border-color .2s,box-shadow .2s;outline:none; }
.form-input:focus,.form-textarea:focus { border-color:var(--nv-primary);box-shadow:0 0 0 3px rgba(21,101,192,.12); }
.form-input.invalid,.form-textarea.invalid { border-color:#EF4444;box-shadow:0 0 0 3px rgba(239,68,68,.1); }
.form-textarea { resize:vertical;min-height:110px; }
.form-row { display:grid;grid-template-columns:1fr 1fr;gap:1rem; }
.modal-success { text-align:center;padding:3rem 2rem; }
.modal-success-icon { width:68px;height:68px;border-radius:50%;background:#ECFDF5;border:2px solid #A7F3D0;display:flex;align-items:center;justify-content:center;margin:0 auto 1.25rem;font-size:2rem; }
@media(max-width:500px) {
  .form-row { grid-template-columns: 1fr; }
  .modal-body { padding: 1.25rem 1.25rem 1.75rem; }
}

/* ── Badge ───────────────────────────────────────────────── */
.nv-badge {
  display: inline-flex; align-items: center; gap: .3rem;
  padding: .25rem .6rem;
  border-radius: 99px; font-size: .75rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: .04em;
}
.nv-badge::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.nv-badge-success { background: #DCFCE7; color: #166534; }
.nv-badge-danger  { background: #FEE2E2; color: #991B1B; }
.nv-badge-warning { background: #FEF9C3; color: #854D0E; }
.nv-badge-info    { background: #DBEAFE; color: #1E40AF; }
.nv-badge-muted   { background: #F1F5F9; color: #475569; }