/* ══════════════════════════════════════════════════════════
   SND GROUPE — Système de design partagé
   ══════════════════════════════════════════════════════════ */

:root {
  /* Couleurs de base */
  --bg:        #0a0e1a;
  --bg-2:      #0d1421;
  --surf:      #111827;
  --surf-2:    #1a2235;
  --bdr:       #1e2d45;
  --bdr-2:     #2a3a56;
  --txt:       #e8edf5;
  --muted:     #6b7a99;
  --muted-2:   #8a96b0;

  /* Accents par division */
  --teal:      #00e5c3;     /* Novaborne */
  --teal-2:    #00b89a;
  --amber:     #f59e0b;     /* Sevdec */
  --amber-2:   #d97706;
  --purple:    #a78bfa;     /* DAF */
  --purple-2:  #8b6cf0;
  --blue:      #3b82f6;
  --red:       #ef4444;
  --green:     #22c55e;

  /* Radius, transitions */
  --r:   10px;
  --r-lg: 16px;
  --r-xl: 22px;
  --ease: cubic-bezier(.2,.6,.2,1);
}

* { margin:0; padding:0; box-sizing:border-box; }
*::selection { background:rgba(0,229,195,.25); color:#fff; }

html, body { height:auto; min-height:100%; }
body {
  background: var(--bg);
  color: var(--txt);
  font-family: 'Syne', sans-serif;
  font-weight: 400;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  position: relative;
  overflow-x: hidden;
}

/* Fond atmosphérique global */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 800px 500px at 15% 10%, rgba(0,229,195,.06), transparent 60%),
    radial-gradient(ellipse 700px 600px at 85% 85%, rgba(167,139,250,.05), transparent 60%),
    radial-gradient(ellipse 600px 400px at 50% 50%, rgba(245,158,11,.03), transparent 60%);
  pointer-events: none;
  z-index: 0;
}

/* Grain subtil */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' /%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 1;
  opacity: .4;
}

/* ══════════════════════════════════════════════════════════
   HEADER GLOBAL
   ══════════════════════════════════════════════════════════ */

.snd-header {
  position: relative;
  z-index: 10;
  padding: 22px 40px;
  border-bottom: 1px solid var(--bdr);
  background: rgba(10,14,26,.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  display: flex;
  align-items: center;
  gap: 18px;
}

.snd-logo {
  display: flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  color: var(--txt);
}
.snd-logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--teal) 0%, #00b89a 50%, var(--purple) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 14px;
  color: #0a0e1a;
  letter-spacing: -.5px;
  box-shadow: 0 4px 20px rgba(0,229,195,.18);
  flex-shrink: 0;
}
.snd-logo-txt {
  display: flex;
  flex-direction: column;
  line-height: 1;
}
.snd-logo-name {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 16px;
  letter-spacing: -.5px;
}
.snd-logo-sub {
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  color: var(--muted);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-top: 3px;
}

/* Breadcrumb */
.snd-crumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  color: var(--muted);
  margin-left: 10px;
}
.snd-crumb a {
  color: var(--muted);
  text-decoration: none;
  transition: color .2s;
}
.snd-crumb a:hover { color: var(--teal); }
.snd-crumb .sep { opacity: .4; }
.snd-crumb .here { color: var(--txt); }

.snd-header-actions { margin-left: auto; display: flex; gap: 10px; align-items: center; }

.snd-back {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--surf-2);
  border: 1px solid var(--bdr);
  color: var(--txt);
  padding: 8px 14px;
  border-radius: 8px;
  font-family: 'Syne', sans-serif;
  font-size: 12px;
  font-weight: 600;
  text-decoration: none;
  transition: all .2s var(--ease);
}
.snd-back:hover {
  border-color: var(--teal);
  color: var(--teal);
  transform: translateX(-2px);
}
.snd-back svg { width: 13px; height: 13px; }

/* ══════════════════════════════════════════════════════════
   LAYOUT PAGE
   ══════════════════════════════════════════════════════════ */

.snd-page {
  position: relative;
  z-index: 2;
  padding: 52px 40px 80px;
  max-width: 1280px;
  margin: 0 auto;
}

.snd-intro {
  margin-bottom: 48px;
  max-width: 760px;
}

.snd-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 100px;
  background: rgba(0,229,195,.08);
  border: 1px solid rgba(0,229,195,.25);
  color: var(--teal);
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  letter-spacing: 1.8px;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.snd-tag::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--teal);
  border-radius: 50%;
  animation: pulse 2.4s ease-in-out infinite;
}
.snd-tag.amber  { background: rgba(245,158,11,.08);  border-color: rgba(245,158,11,.25);  color: var(--amber); }
.snd-tag.amber::before  { background: var(--amber); }
.snd-tag.purple { background: rgba(167,139,250,.08); border-color: rgba(167,139,250,.25); color: var(--purple); }
.snd-tag.purple::before { background: var(--purple); }

.snd-title {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 56px;
  line-height: 1;
  letter-spacing: -2.5px;
  margin-bottom: 16px;
}
.snd-title em {
  font-style: normal;
  background: linear-gradient(135deg, var(--teal) 0%, #7dd3fc 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.snd-title em.amber {
  background: linear-gradient(135deg, var(--amber) 0%, #fbbf24 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.snd-title em.purple {
  background: linear-gradient(135deg, var(--purple) 0%, #c4b5fd 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.snd-subtitle {
  font-size: 16px;
  font-weight: 300;
  color: var(--muted-2);
  line-height: 1.55;
  max-width: 620px;
}

/* Section label (pour sous-sections) */
.snd-section-label {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.snd-section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, var(--bdr), transparent);
}

/* ══════════════════════════════════════════════════════════
   GRILLE DE BLOCS
   ══════════════════════════════════════════════════════════ */

.snd-grid {
  display: grid;
  gap: 22px;
}
.snd-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.snd-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.snd-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }

/* ══════════════════════════════════════════════════════════
   BLOC / CARTE DIVISION
   ══════════════════════════════════════════════════════════ */

.snd-block {
  position: relative;
  background: linear-gradient(135deg, var(--surf) 0%, rgba(17,24,39,.4) 100%);
  border: 1px solid var(--bdr);
  border-radius: var(--r-xl);
  padding: 32px 28px 28px;
  min-height: 260px;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: var(--txt);
  transition: all .3s var(--ease);
  overflow: hidden;
  cursor: pointer;
}
.snd-block::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--accent, var(--teal));
  opacity: 0;
  transition: opacity .3s var(--ease);
}
.snd-block::after {
  content: '';
  position: absolute;
  top: -40%; right: -40%;
  width: 80%; height: 80%;
  background: radial-gradient(circle, var(--accent-glow, rgba(0,229,195,.12)), transparent 65%);
  opacity: 0;
  transition: opacity .4s var(--ease);
  pointer-events: none;
}
.snd-block:hover {
  border-color: var(--accent, var(--teal));
  transform: translateY(-3px);
  box-shadow: 0 18px 40px -15px rgba(0,0,0,.5);
}
.snd-block:hover::before { opacity: 1; }
.snd-block:hover::after  { opacity: 1; }

.snd-block.teal    { --accent: var(--teal);   --accent-glow: rgba(0,229,195,.12); }
.snd-block.amber   { --accent: var(--amber);  --accent-glow: rgba(245,158,11,.12); }
.snd-block.purple  { --accent: var(--purple); --accent-glow: rgba(167,139,250,.12); }
.snd-block.blue    { --accent: var(--blue);   --accent-glow: rgba(59,130,246,.12); }

.snd-block-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 22px;
  position: relative;
  z-index: 2;
}

.snd-block-icon {
  width: 52px; height: 52px;
  border-radius: 13px;
  background: rgba(255,255,255,.03);
  border: 1px solid var(--bdr);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent, var(--teal));
  font-size: 22px;
  transition: all .3s var(--ease);
  flex-shrink: 0;
}
.snd-block:hover .snd-block-icon {
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  border-color: var(--accent);
  transform: rotate(-4deg) scale(1.05);
}

.snd-block-lock {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(255,255,255,.04);
  border: 1px solid var(--bdr);
  color: var(--muted);
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 100px;
}
.snd-block-lock svg { width: 10px; height: 10px; }

.snd-block-name {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 26px;
  letter-spacing: -1px;
  margin-bottom: 8px;
  position: relative;
  z-index: 2;
  line-height: 1.05;
}
.snd-block-desc {
  font-size: 13px;
  color: var(--muted-2);
  line-height: 1.55;
  font-weight: 300;
  position: relative;
  z-index: 2;
  margin-bottom: 20px;
  flex-grow: 1;
}

.snd-block-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-top: 16px;
  border-top: 1px solid var(--bdr);
  position: relative;
  z-index: 2;
}
.snd-block-count {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 1px;
  text-transform: uppercase;
}
.snd-block-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent, var(--teal));
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  transition: transform .25s var(--ease);
}
.snd-block:hover .snd-block-arrow { transform: translateX(4px); }
.snd-block-arrow svg { width: 14px; height: 14px; }

/* ══════════════════════════════════════════════════════════
   BLOC OUTIL (plus petit)
   ══════════════════════════════════════════════════════════ */

.snd-tool {
  position: relative;
  background: var(--surf);
  border: 1px solid var(--bdr);
  border-radius: var(--r-lg);
  padding: 22px 22px 20px;
  text-decoration: none;
  color: var(--txt);
  display: flex;
  flex-direction: column;
  transition: all .25s var(--ease);
  overflow: hidden;
  min-height: 180px;
}
.snd-tool:hover {
  border-color: var(--accent, var(--teal));
  transform: translateY(-2px);
  background: linear-gradient(135deg, var(--surf) 0%, color-mix(in srgb, var(--accent) 4%, var(--surf)) 100%);
}
.snd-tool.teal   { --accent: var(--teal); }
.snd-tool.amber  { --accent: var(--amber); }
.snd-tool.purple { --accent: var(--purple); }
.snd-tool.blue   { --accent: var(--blue); }

.snd-tool-ico {
  width: 38px; height: 38px;
  border-radius: 9px;
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  font-size: 16px;
  margin-bottom: 14px;
}
.snd-tool-name {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 15px;
  line-height: 1.2;
  margin-bottom: 6px;
}
.snd-tool-desc {
  font-size: 11.5px;
  color: var(--muted-2);
  line-height: 1.5;
  font-weight: 300;
  flex-grow: 1;
}
.snd-tool-foot {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--bdr);
  display: flex; align-items: center; justify-content: space-between;
  gap: 8px;
}
.snd-tool-status {
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 3px 9px;
  border-radius: 100px;
}
.snd-tool-status.live    { background: rgba(34,197,94,.12);  color: var(--green);  border: 1px solid rgba(34,197,94,.25); }
.snd-tool-status.soon    { background: rgba(107,122,153,.1); color: var(--muted);  border: 1px solid var(--bdr); }
.snd-tool-status.draft   { background: rgba(245,158,11,.1);  color: var(--amber);  border: 1px solid rgba(245,158,11,.25); }
.snd-tool-open {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  color: var(--accent, var(--teal));
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: transform .2s;
}
.snd-tool:hover .snd-tool-open { transform: translateX(3px); }

.snd-tool.disabled {
  cursor: not-allowed;
  opacity: .58;
}
.snd-tool.disabled:hover {
  transform: none;
  border-color: var(--bdr);
  background: var(--surf);
}

/* ══════════════════════════════════════════════════════════
   MODALE MOT DE PASSE
   ══════════════════════════════════════════════════════════ */

.snd-auth-overlay {
  position: fixed;
  inset: 0;
  background: rgba(5,8,15,.88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s var(--ease);
}
.snd-auth-overlay.open { opacity: 1; pointer-events: all; }

.snd-auth-box {
  background: var(--surf);
  border: 1px solid var(--bdr-2);
  border-radius: var(--r-xl);
  padding: 36px 32px 28px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 30px 80px rgba(0,0,0,.5);
  transform: translateY(10px) scale(.98);
  transition: transform .3s var(--ease);
  position: relative;
  overflow: hidden;
}
.snd-auth-overlay.open .snd-auth-box { transform: translateY(0) scale(1); }
.snd-auth-box::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(to right, var(--teal), var(--purple));
}
.snd-auth-lock {
  width: 56px; height: 56px;
  border-radius: 14px;
  background: rgba(0,229,195,.08);
  border: 1px solid rgba(0,229,195,.25);
  display: flex; align-items: center; justify-content: center;
  color: var(--teal);
  margin: 0 auto 18px;
}
.snd-auth-lock svg { width: 22px; height: 22px; }
.snd-auth-title {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 20px;
  text-align: center;
  margin-bottom: 6px;
}
.snd-auth-sub {
  font-size: 12px;
  color: var(--muted-2);
  text-align: center;
  margin-bottom: 22px;
  line-height: 1.5;
}
.snd-auth-sub strong { color: var(--txt); font-weight: 600; }
.snd-auth-input {
  width: 100%;
  background: var(--bg-2);
  border: 1px solid var(--bdr);
  color: var(--txt);
  padding: 12px 14px;
  border-radius: 10px;
  font-family: 'DM Mono', monospace;
  font-size: 13px;
  outline: none;
  transition: border-color .2s;
  margin-bottom: 10px;
  letter-spacing: 2px;
}
.snd-auth-input:focus { border-color: var(--teal); }
.snd-auth-input.error { border-color: var(--red); animation: shake .35s var(--ease); }
.snd-auth-err {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  color: var(--red);
  text-align: center;
  min-height: 16px;
  margin-bottom: 10px;
}
.snd-auth-actions {
  display: flex;
  gap: 8px;
}
.snd-auth-btn {
  flex: 1;
  padding: 11px;
  border-radius: 9px;
  font-family: 'Syne', sans-serif;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: all .2s;
  letter-spacing: .3px;
}
.snd-auth-btn.primary { background: var(--teal); color: #0a0e1a; }
.snd-auth-btn.primary:hover { background: #00ffda; }
.snd-auth-btn.ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--bdr);
}
.snd-auth-btn.ghost:hover { color: var(--txt); border-color: var(--bdr-2); }

.snd-auth-hint {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--bdr);
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  color: var(--muted);
  text-align: center;
  line-height: 1.6;
}

/* ══════════════════════════════════════════════════════════
   FOOTER
   ══════════════════════════════════════════════════════════ */

.snd-footer {
  position: relative;
  z-index: 2;
  border-top: 1px solid var(--bdr);
  padding: 22px 40px;
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 60px;
}
.snd-footer .left  { text-transform: uppercase; }
.snd-footer .right { opacity: .7; }

/* ══════════════════════════════════════════════════════════
   ANIMATIONS
   ══════════════════════════════════════════════════════════ */

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: .5; transform: scale(1.35); }
}
@keyframes shake {
  0%,100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  75% { transform: translateX(6px); }
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}
.snd-block, .snd-tool, .snd-intro {
  animation: fadeUp .5s var(--ease) both;
}
.snd-grid > *:nth-child(1) { animation-delay: .02s; }
.snd-grid > *:nth-child(2) { animation-delay: .08s; }
.snd-grid > *:nth-child(3) { animation-delay: .14s; }
.snd-grid > *:nth-child(4) { animation-delay: .20s; }
.snd-grid > *:nth-child(5) { animation-delay: .26s; }
.snd-grid > *:nth-child(6) { animation-delay: .32s; }

/* ══════════════════════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════════════════════ */

@media (max-width: 960px) {
  .snd-grid.cols-3, .snd-grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 680px) {
  .snd-header { padding: 16px 20px; }
  .snd-page   { padding: 36px 20px 60px; }
  .snd-title  { font-size: 38px; }
  .snd-grid.cols-2, .snd-grid.cols-3, .snd-grid.cols-4 { grid-template-columns: 1fr; }
  .snd-crumb  { display: none; }
  .snd-footer { padding: 18px 20px; font-size: 9px; }
}