/* ═══════════════════════════════════════════════════════════
   BELLOVA TELECOM — Feuille de style spécifique
   Palette : Navy #020b18 | Surface #071428 | Sky #0ea5e9 | Teal #06b6d4
   Esthétique : Fibre optique, signal, onde, connectivité
═══════════════════════════════════════════════════════════ */

/* ─── Variables Telecom ─── */
:root {
  --tc-dark:     #020b18;
  --tc-surface:  #071428;
  --tc-card:     #0c1e35;
  --tc-border:   rgba(14, 165, 233, .15);
  --tc-border2:  rgba(6, 182, 212, .12);

  --sky:         #0ea5e9;
  --sky-dark:    #0284c7;
  --sky-light:   #38bdf8;
  --teal:        #06b6d4;
  --teal-dark:   #0891b2;
  --teal-light:  #22d3ee;
  --signal:      #10b981;
  --signal-dark: #059669;
  --amber:       #f59e0b;
  --amber-dark:  #d97706;

  --tc-text:     rgba(255, 255, 255, .88);
  --tc-muted:    rgba(255, 255, 255, .50);
  --tc-dim:      rgba(255, 255, 255, .28);

  --tc-glow:     0 0 40px rgba(14, 165, 233, .30);
  --tc-glow-t:   0 0 30px rgba(6, 182, 212, .25);
  --tc-shadow:   0 8px 32px rgba(0, 0, 0, .55);
}

/* ─── Highlights ─── */
.highlight-sky   { color: var(--sky); }
.highlight-teal  { color: var(--teal); }
.highlight-signal { color: var(--signal); }

/* ═══════════════════ BODY ═══════════════════ */
.tc-body {
  background: var(--tc-dark);
  color: var(--tc-text);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ─── Grille de signal / ondes en arrière-plan ─── */
.tc-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 90% 60% at 10% 0%,   rgba(14, 165, 233, .10) 0%, transparent 60%),
    radial-gradient(ellipse 70% 50% at 90% 100%,  rgba(6, 182, 212, .08)  0%, transparent 55%),
    radial-gradient(ellipse 50% 40% at 50% 50%,   rgba(16, 185, 129, .05) 0%, transparent 60%);
}
.tc-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(14, 165, 233, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(14, 165, 233, .04) 1px, transparent 1px);
  background-size: 50px 50px;
}

/* ═══════════════════ NAVBAR TELECOM ═══════════════════ */
.tc-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(2, 11, 24, .95);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--tc-border);
  transition: box-shadow var(--transition);
}
.tc-nav.scrolled {
  box-shadow: 0 4px 24px rgba(0, 0, 0, .5);
}
.tc-nav .nav-container {
  height: 68px;
}
.tc-nav .nav-logo {
  color: var(--white);
}
.tc-nav .logo-img {
  filter: brightness(0) invert(1);
}
.tc-nav .logo-bellova {
  color: var(--sky);
}
.tc-nav .logo-tc {
  color: var(--white);
  font-weight: 700;
  letter-spacing: -.02em;
}
.tc-nav .nav-link {
  color: rgba(255, 255, 255, .75);
  font-size: .9rem;
  font-weight: 500;
  padding: .5rem .9rem;
  border-radius: 6px;
  transition: color .2s, background .2s;
  background: none;
  border: none;
  cursor: pointer;
}
.tc-nav .nav-link:hover,
.tc-nav .nav-link.active {
  color: var(--sky);
  background: rgba(14, 165, 233, .08);
}
.tc-nav .nav-corp-link {
  display: flex;
  align-items: center;
  gap: .4rem;
  color: var(--tc-muted);
  font-size: .85rem;
  font-weight: 500;
  padding: .4rem .8rem;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,.1);
  transition: all .2s;
}
.tc-nav .nav-corp-link:hover {
  color: var(--tc-text);
  border-color: rgba(255,255,255,.25);
  background: rgba(255,255,255,.04);
}

/* ─── Bouton CTA nav ─── */
.tc-nav .btn-nav-cta {
  background: linear-gradient(135deg, var(--sky) 0%, var(--teal) 100%);
  color: #fff;
  font-size: .85rem;
  font-weight: 600;
  padding: .45rem 1.1rem;
  border-radius: 20px;
  border: none;
  cursor: pointer;
  transition: opacity .2s, transform .15s;
  white-space: nowrap;
}
.tc-nav .btn-nav-cta:hover {
  opacity: .88;
  transform: translateY(-1px);
}

/* ═══════════════════ BADGE BIENTÔT ═══════════════════ */
.tc-coming-banner {
  position: relative;
  z-index: 10;
  margin-top: 68px;
  background: linear-gradient(90deg, rgba(14,165,233,.18) 0%, rgba(6,182,212,.18) 50%, rgba(16,185,129,.12) 100%);
  border-bottom: 1px solid rgba(14, 165, 233, .25);
  padding: .65rem 0;
  text-align: center;
}
.tc-coming-banner .tc-coming-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .6rem;
  flex-wrap: wrap;
}
.tc-coming-banner .tc-coming-pill {
  background: linear-gradient(135deg, var(--sky) 0%, var(--teal) 100%);
  color: #fff;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: .25rem .65rem;
  border-radius: 20px;
}
.tc-coming-banner p {
  color: rgba(255,255,255,.75);
  font-size: .88rem;
  margin: 0;
}
.tc-coming-banner strong {
  color: var(--sky-light);
}

/* ═══════════════════ HERO TELECOM ═══════════════════ */
.tc-hero {
  position: relative;
  z-index: 1;
  min-height: 88vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 6rem 0 4rem;
}
.tc-hero-content {
  position: relative;
  z-index: 2;
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
  padding: 0 1.5rem;
}
.tc-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: rgba(14, 165, 233, .12);
  border: 1px solid rgba(14, 165, 233, .3);
  color: var(--sky-light);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: .4rem 1rem;
  border-radius: 30px;
  margin-bottom: 2rem;
}
.tc-hero-title {
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -.03em;
  color: #fff;
  margin-bottom: 1.4rem;
}
.tc-hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--tc-muted);
  line-height: 1.7;
  max-width: 620px;
  margin: 0 auto 2.5rem;
}
.tc-hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}
.btn-sky {
  background: linear-gradient(135deg, var(--sky) 0%, var(--teal) 100%);
  color: #fff;
  font-weight: 600;
  border: none;
  padding: .85rem 2rem;
  border-radius: 8px;
  font-size: 1rem;
  cursor: pointer;
  transition: opacity .2s, transform .2s, box-shadow .2s;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  box-shadow: 0 0 24px rgba(14, 165, 233, .35);
}
.btn-sky:hover {
  opacity: .88;
  transform: translateY(-2px);
  box-shadow: 0 0 36px rgba(14, 165, 233, .5);
}
.tc-hero-wave {
  position: absolute;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 200%;
  opacity: .07;
  pointer-events: none;
}

/* ─── Stats hero ─── */
.tc-hero-stats {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0;
  flex-wrap: wrap;
  background: rgba(255,255,255,.04);
  border: 1px solid var(--tc-border);
  border-radius: 14px;
  padding: 1.25rem 2rem;
  max-width: 640px;
  margin: 0 auto;
}
.tc-hero-stats .stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 1.5rem;
}
.tc-hero-stats .stat-number {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--sky);
  letter-spacing: -.03em;
}
.tc-hero-stats .stat-label {
  font-size: .72rem;
  color: var(--tc-muted);
  text-transform: uppercase;
  letter-spacing: .05em;
  margin-top: .2rem;
}
.tc-hero-stats .stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,.1);
}

/* ═══════════════════ RÉASSURANCE ═══════════════════ */
.tc-reassurance {
  position: relative;
  z-index: 1;
  background: rgba(7, 20, 40, .8);
  border-top: 1px solid var(--tc-border);
  border-bottom: 1px solid var(--tc-border);
  padding: 1.25rem 0;
}
.tc-reassurance-grid {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.5rem 3rem;
}
.tc-reassurance-item {
  display: flex;
  align-items: center;
  gap: .55rem;
  color: var(--tc-muted);
  font-size: .88rem;
  font-weight: 500;
}
.tc-reassurance-item i {
  color: var(--sky);
  font-size: 1rem;
}

/* ═══════════════════ SECTIONS ═══════════════════ */
.tc-section {
  position: relative;
  z-index: 1;
  padding: 5rem 0;
}
.tc-section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3.5rem;
}
.tc-section-tag {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  background: rgba(14, 165, 233, .1);
  border: 1px solid rgba(14, 165, 233, .25);
  color: var(--sky);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: .35rem .85rem;
  border-radius: 20px;
  margin-bottom: 1rem;
}
.tc-section-title {
  font-size: clamp(1.7rem, 3.5vw, 2.4rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -.03em;
  color: #fff;
  margin-bottom: .9rem;
}
.tc-section-subtitle {
  color: var(--tc-muted);
  font-size: 1rem;
  line-height: 1.7;
}

/* ═══════════════════ SERVICES GRID ═══════════════════ */
.tc-services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.tc-service-card {
  background: var(--tc-card);
  border: 1px solid var(--tc-border);
  border-radius: 14px;
  padding: 2rem 1.75rem;
  display: flex;
  flex-direction: column;
  transition: transform .25s, border-color .25s, box-shadow .25s;
  position: relative;
  overflow: hidden;
}
.tc-service-card:hover {
  transform: translateY(-4px);
  border-color: rgba(14, 165, 233, .4);
  box-shadow: var(--tc-glow);
}
.tc-service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--sky), var(--teal));
  opacity: 0;
  transition: opacity .25s;
}
.tc-service-card:hover::before { opacity: 1; }

.tc-service-card.tc-card-coming {
  border-color: rgba(245, 158, 11, .2);
  background: linear-gradient(135deg, var(--tc-card) 0%, rgba(245,158,11,.04) 100%);
}
.tc-service-card.tc-card-coming:hover {
  border-color: rgba(245, 158, 11, .4);
  box-shadow: 0 0 30px rgba(245, 158, 11, .15);
}
.tc-service-card.tc-card-coming::before {
  background: linear-gradient(90deg, var(--amber), var(--amber-dark));
}

.tc-card-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}
.tc-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}
.tc-card-icon-sky   { background: rgba(14, 165, 233, .15); color: var(--sky); }
.tc-card-icon-teal  { background: rgba(6, 182, 212, .15);  color: var(--teal); }
.tc-card-icon-green { background: rgba(16, 185, 129, .15); color: var(--signal); }
.tc-card-icon-amber { background: rgba(245, 158, 11, .15); color: var(--amber); }

.tc-card-badge {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: .2rem .6rem;
  border-radius: 20px;
}
.tc-badge-sky    { background: rgba(14, 165, 233, .15); color: var(--sky-light); border: 1px solid rgba(14,165,233,.2); }
.tc-badge-teal   { background: rgba(6, 182, 212, .15);  color: var(--teal-light); border: 1px solid rgba(6,182,212,.2); }
.tc-badge-green  { background: rgba(16, 185, 129, .15); color: #34d399; border: 1px solid rgba(16,185,129,.2); }
.tc-badge-coming { background: rgba(245, 158, 11, .15); color: var(--amber); border: 1px solid rgba(245,158,11,.25); }

.tc-service-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: .6rem;
}
.tc-service-card p {
  color: var(--tc-muted);
  font-size: .9rem;
  line-height: 1.6;
  margin-bottom: 1.25rem;
}
.tc-service-features {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  display: flex;
  flex-direction: column;
  gap: .45rem;
  flex: 1;
}
.tc-service-features li {
  display: flex;
  align-items: flex-start;
  gap: .55rem;
  font-size: .87rem;
  color: rgba(255,255,255,.72);
}
.tc-service-features li i {
  color: var(--signal);
  margin-top: .15em;
  flex-shrink: 0;
}

/* ─── Carte "bientôt" overlay ─── */
.tc-coming-overlay {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  background: rgba(245, 158, 11, .08);
  border: 1px dashed rgba(245, 158, 11, .35);
  border-radius: 8px;
  padding: .75rem;
  color: var(--amber);
  font-size: .85rem;
  font-weight: 600;
  margin-top: auto;
}

/* ═══════════════════ WHY SECTION ═══════════════════ */
.tc-why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}
.tc-why-card {
  background: var(--tc-card);
  border: 1px solid var(--tc-border);
  border-radius: 12px;
  padding: 1.75rem 1.5rem;
  text-align: center;
  transition: transform .25s, border-color .25s;
}
.tc-why-card:hover {
  transform: translateY(-3px);
  border-color: rgba(14, 165, 233, .3);
}
.tc-why-icon {
  width: 56px;
  height: 56px;
  background: rgba(14, 165, 233, .1);
  border: 1px solid rgba(14, 165, 233, .2);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--sky);
  margin: 0 auto 1rem;
}
.tc-why-card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: .5rem;
}
.tc-why-card p {
  color: var(--tc-muted);
  font-size: .87rem;
  line-height: 1.6;
}

/* ═══════════════════ PRE-INSCRIPTION ═══════════════════ */
.tc-preinscription {
  position: relative;
  z-index: 1;
  background: linear-gradient(135deg, rgba(14,165,233,.12) 0%, rgba(6,182,212,.08) 50%, rgba(16,185,129,.06) 100%);
  border-top: 1px solid var(--tc-border);
  border-bottom: 1px solid var(--tc-border);
  padding: 4rem 0;
}
.tc-preinscription-inner {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}
.tc-preinscription-inner h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: .75rem;
  line-height: 1.2;
}
.tc-preinscription-inner p {
  color: var(--tc-muted);
  margin-bottom: 2rem;
  line-height: 1.7;
}
.tc-form {
  display: flex;
  gap: .75rem;
  flex-wrap: wrap;
  justify-content: center;
}
.tc-form input[type="email"] {
  flex: 1 1 260px;
  background: rgba(255,255,255,.06);
  border: 1px solid var(--tc-border);
  border-radius: 8px;
  padding: .8rem 1.1rem;
  color: #fff;
  font-size: .95rem;
  outline: none;
  transition: border-color .2s;
}
.tc-form input[type="email"]::placeholder { color: var(--tc-dim); }
.tc-form input[type="email"]:focus { border-color: var(--sky); }
.tc-form .btn-sky {
  white-space: nowrap;
  padding: .8rem 1.75rem;
  font-size: .95rem;
}

/* ═══════════════════ CTA BANNER ═══════════════════ */
.tc-cta-banner {
  position: relative;
  z-index: 1;
  background: linear-gradient(135deg, var(--tc-surface) 0%, rgba(14,165,233,.08) 100%);
  border-top: 1px solid var(--tc-border);
  padding: 5rem 0;
  text-align: center;
  overflow: hidden;
}
.tc-cta-banner::before {
  content: '';
  position: absolute;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(14,165,233,.12) 0%, transparent 70%);
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  pointer-events: none;
}
.tc-cta-banner h2 {
  font-size: clamp(1.7rem, 3.5vw, 2.5rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 1rem;
  position: relative;
}
.tc-cta-banner p {
  color: var(--tc-muted);
  font-size: 1.05rem;
  max-width: 560px;
  margin: 0 auto 2.5rem;
  position: relative;
}
.tc-cta-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
}

/* ═══════════════════ FOOTER TELECOM ═══════════════════ */
.tc-footer {
  position: relative;
  z-index: 1;
  background: rgba(2, 11, 24, .98);
  border-top: 1px solid var(--tc-border);
}
.tc-footer .footer-top {
  padding: 3.5rem 0 2rem;
}
.tc-footer .footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2.5rem 2rem;
}
.tc-footer .footer-brand p {
  color: var(--tc-muted);
  font-size: .88rem;
  line-height: 1.6;
  margin-top: .75rem;
}
.tc-footer .footer-col h4 {
  color: #fff;
  font-size: .9rem;
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: .01em;
}
.tc-footer .footer-col ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: .5rem;
}
.tc-footer .footer-col ul a {
  color: var(--tc-muted);
  font-size: .87rem;
  transition: color .2s;
}
.tc-footer .footer-col ul a:hover { color: var(--sky); }
.tc-footer .footer-bottom {
  border-top: 1px solid rgba(255,255,255,.06);
  padding: 1.25rem 0;
}
.tc-footer .footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: .5rem;
}
.tc-footer .footer-bottom-inner p {
  color: var(--tc-dim);
  font-size: .8rem;
  margin: 0;
}
.tc-footer .footer-bottom-inner a {
  color: var(--tc-dim);
  transition: color .2s;
}
.tc-footer .footer-bottom-inner a:hover { color: var(--sky); }
.tc-footer .logo-tc {
  color: #fff;
  font-weight: 700;
  letter-spacing: -.02em;
}
.tc-footer .logo-bellova { color: var(--sky); }
.tc-footer .logo-img {
  filter: brightness(0) invert(1);
}

/* ─── Socials footer ─── */
.tc-footer .footer-socials a {
  width: 34px; height: 34px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--tc-muted);
  font-size: .9rem;
  transition: all .2s;
}
.tc-footer .footer-socials a:hover {
  color: var(--sky);
  border-color: rgba(14,165,233,.3);
  background: rgba(14,165,233,.08);
}

/* ═══════════════════ RESPONSIVE ═══════════════════ */
@media (max-width: 900px) {
  .tc-footer .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 600px) {
  .tc-hero { min-height: auto; padding: 5rem 0 3rem; }
  .tc-hero-stats { flex-direction: column; gap: 1rem; }
  .tc-hero-stats .stat-divider { display: none; }
  .tc-footer .footer-grid { grid-template-columns: 1fr; }
  .tc-footer .footer-bottom-inner { flex-direction: column; text-align: center; }
  .tc-form { flex-direction: column; }
  .tc-form input[type="email"] { flex: 1 1 auto; width: 100%; }
  .tc-coming-banner .tc-coming-inner { flex-direction: column; gap: .35rem; }
}