/* ===== RESET & BASE ===== */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --accent:#1a3a4a;
  --accent-light:#245468;
  --accent-dark:#0f2530;
  --blue:#3b82f6;
  --blue-light:#60a5fa;
  --green:#10b981;
  --green-dark:#059669;
  --red-soft:#dc2626;
  --amber-soft:#f59e0b;
  --bg:#ffffff;
  --bg-alt:#f5f7f9;
  --bg-dark-soft:#0f2530;
  --border:#e8ecef;
  --border-soft:#f0f0f0;
  --text:#1a1a1a;
  --text-light:#555;
  --text-muted:#8a8a8a;
  --radius:12px;
  --radius-lg:18px;
  --shadow:0 4px 24px rgba(0,0,0,.07);
  --shadow-lg:0 16px 48px rgba(15,37,48,.12);
  --transition:.3s ease;
}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:'Inter',sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}

.container{width:100%;max-width:1140px;margin:0 auto;padding:0 24px}
.section{padding:100px 0}
.section-title{font-family:'DM Serif Display',serif;font-size:2.4rem;margin-bottom:16px;line-height:1.2}
.section-subtitle{color:var(--text-light);font-size:1.05rem;max-width:620px;margin-bottom:56px}
.text-center{text-align:center}
.mx-auto{margin-left:auto;margin-right:auto}

/* gradient */
.gradient-text{
  background:linear-gradient(135deg, var(--blue) 0%, var(--green) 100%);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}

/* reveal */
.reveal{opacity:0;transform:translateY(32px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ===== NAV ===== */
.nav{
  position:fixed;top:0;left:0;width:100%;z-index:100;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color var(--transition),box-shadow var(--transition);
}
.nav.scrolled{border-bottom-color:#e4e4e4;box-shadow:0 1px 12px rgba(0,0,0,.04)}
.nav .container{display:flex;align-items:center;justify-content:space-between;height:68px}
.nav-logo{font-family:'DM Serif Display',serif;font-size:1.35rem;font-weight:700;color:var(--accent)}
.nav-logo span{color:var(--text)}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{font-size:.9rem;font-weight:500;color:var(--text-light);transition:color var(--transition)}
.nav-links a:hover{color:var(--accent)}
.nav-cta{
  background:var(--accent);color:#fff!important;
  padding:10px 22px;border-radius:var(--radius);
  font-weight:600;font-size:.88rem;
  transition:background var(--transition),transform var(--transition);
}
.nav-cta:hover{background:var(--accent-light);transform:translateY(-1px)}

.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:none;padding:4px}
.nav-toggle span{width:24px;height:2px;background:var(--text);border-radius:2px;transition:var(--transition)}

/* ===== HERO ===== */
.hero{
  padding:140px 0 100px;
  background:linear-gradient(168deg,#f0f6fa 0%,#ffffff 50%,#f0fdf4 100%);
  position:relative;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  top:-120px;right:-120px;
  width:400px;height:400px;
  background:radial-gradient(closest-side, rgba(59,130,246,.18), transparent 70%);
  pointer-events:none;
}
.hero::after{
  content:"";
  position:absolute;
  bottom:-150px;left:-100px;
  width:420px;height:420px;
  background:radial-gradient(closest-side, rgba(16,185,129,.15), transparent 70%);
  pointer-events:none;
}

.hero .container{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}

.hero-tag{
  display:inline-block;
  font-size:.78rem;
  text-transform:uppercase;
  letter-spacing:2px;
  font-weight:600;
  color:var(--blue);
  background:rgba(59,130,246,.08);
  padding:6px 16px;
  border-radius:50px;
  margin-bottom:20px;
}

.hero h1{
  font-family:'DM Serif Display',serif;
  font-size:3.1rem;
  line-height:1.12;
  margin-bottom:20px;
}

.hero p{
  font-size:1.05rem;
  color:var(--text-light);
  margin-bottom:24px;
  max-width:480px;
}

.hero-points{display:flex;flex-direction:column;gap:10px;margin-bottom:32px}
.hero-point{display:flex;align-items:center;gap:10px;font-size:.93rem;font-weight:500}
.hero-check{
  display:inline-flex;align-items:center;justify-content:center;
  width:22px;height:22px;border-radius:50%;
  background:var(--green);color:#fff;font-size:.7rem;flex-shrink:0;
}

.hero-buttons{display:flex;gap:14px;flex-wrap:wrap}

/* hero visual */
.hero-visual{position:relative}

.hero-mockup{
  background:#fff;
  border-radius:var(--radius);
  box-shadow:var(--shadow-lg);
  overflow:hidden;
  border:1px solid var(--border);
}

.mockup-bar{
  display:flex;align-items:center;gap:6px;padding:10px 14px;background:#f5f5f5;border-bottom:1px solid var(--border);
}
.mockup-bar span{width:10px;height:10px;border-radius:50%}
.mockup-bar span:nth-child(1){background:#ff5f57}
.mockup-bar span:nth-child(2){background:#febc2e}
.mockup-bar span:nth-child(3){background:#28c840}
.mockup-url{
  margin-left:16px;font-style:normal;
  font-size:.75rem;color:var(--text-muted);
  background:#fff;padding:3px 14px;border-radius:6px;
  border:1px solid var(--border);flex:1;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

.hero-mockup img{width:100%;height:auto;display:block}

.hero-float{
  position:absolute;
  background:#fff;
  padding:10px 18px;
  border-radius:50px;
  font-size:.82rem;
  font-weight:600;
  box-shadow:0 4px 20px rgba(0,0,0,.1);
  display:flex;align-items:center;gap:8px;
  animation:float 3s ease-in-out infinite;
}

.hero-float-1{top:20px;right:-20px;animation-delay:0s}
.hero-float-2{bottom:40px;left:-10px;animation-delay:1.5s}

.float-dot{width:8px;height:8px;border-radius:50%;background:var(--blue)}
.dot-green{background:var(--green)}

@keyframes float{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(-8px)}
}

/* ===== BANDEAU ===== */
.bandeau{
  background:var(--accent);
  color:rgba(255,255,255,.72);
  padding:14px 0;
  font-size:.78rem;
  letter-spacing:2px;
  text-transform:uppercase;
  overflow:hidden;
}
.bandeau-track{display:inline-flex;white-space:nowrap;animation:scroll-bandeau 32s linear infinite}
.bandeau-track span{padding:0 8px;flex-shrink:0}
.bandeau-track .sep{color:rgba(255,255,255,.25);padding:0 12px}
@keyframes scroll-bandeau{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ===== BTNS ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--radius);
  font-weight:600;font-size:.93rem;
  transition:all var(--transition);
  cursor:pointer;border:none;
  text-align:center;
}
.btn-primary{
  background:var(--accent);color:#fff;
  box-shadow:0 4px 16px rgba(26,58,74,.15);
}
.btn-primary:hover{
  background:var(--accent-light);
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(26,58,74,.2);
}
.btn-outline{background:transparent;color:var(--accent);border:2px solid #d0d5dd}
.btn-outline:hover{border-color:var(--accent);background:rgba(26,58,74,.04);transform:translateY(-2px)}

/* ===== STEPS ===== */
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.step-card{
  background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);
  padding:40px 28px;text-align:center;
  transition:transform var(--transition),box-shadow var(--transition);
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.step-number{
  display:inline-flex;align-items:center;justify-content:center;
  width:48px;height:48px;border-radius:50%;
  background:linear-gradient(135deg,var(--blue),var(--green));
  color:#fff;font-weight:700;font-size:1.1rem;margin-bottom:20px;
}
.step-card h3{font-family:'DM Serif Display',serif;font-size:1.2rem;margin-bottom:10px}
.step-card p{color:var(--text-light);font-size:.93rem}

/* ===== TARIFS ===== */
.section-tarifs{background:linear-gradient(180deg,#fff 0%,#f5f7f9 100%)}
.tarifs-kicker{
  display:inline-block;
  font-size:.75rem;text-transform:uppercase;letter-spacing:2.5px;
  font-weight:700;color:var(--green-dark);
  margin-bottom:12px;
}
.tarifs-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:28px;
  max-width:900px;margin:0 auto 56px;
}
.tarif-card{
  position:relative;
  background:var(--bg);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:40px 36px;
  display:flex;flex-direction:column;
  transition:transform var(--transition),box-shadow var(--transition);
}
.tarif-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.tarif-card--featured{
  border:2px solid var(--accent);
  background:linear-gradient(175deg,#fff 0%,#fafcfe 100%);
  box-shadow:var(--shadow-lg);
}
.tarif-badge{
  position:absolute;top:-14px;left:50%;transform:translateX(-50%);
  background:var(--accent);color:#fff;
  padding:6px 18px;border-radius:50px;
  font-size:.72rem;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;
}
.tarif-card__head{margin-bottom:28px;padding-bottom:28px;border-bottom:1px solid var(--border)}
.tarif-label{
  font-size:.8rem;text-transform:uppercase;letter-spacing:2px;
  color:var(--text-muted);font-weight:600;margin-bottom:12px;
}
.tarif-price{display:flex;align-items:baseline;gap:10px;margin-bottom:14px}
.tarif-amount{
  font-family:'DM Serif Display',serif;
  font-size:3.6rem;color:var(--accent);line-height:1;
}
.tarif-oneshot{
  font-size:.9rem;color:var(--text-light);font-weight:500;
}
.tarif-desc{color:var(--text-light);font-size:.95rem;line-height:1.6}
.tarif-features{display:flex;flex-direction:column;gap:12px;margin-bottom:32px;flex:1}
.tarif-features li{
  font-size:.93rem;color:var(--text);
  padding-left:30px;position:relative;
}
.tarif-features li::before{
  content:"";
  position:absolute;left:0;top:7px;
  width:18px;height:18px;border-radius:50%;
  background:var(--green);
  mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path fill='white' d='M20.285 6.709l-11.285 11.285-5.285-5.285 1.414-1.414 3.871 3.871 9.871-9.871z'/></svg>") no-repeat center/10px;
  -webkit-mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path fill='white' d='M20.285 6.709l-11.285 11.285-5.285-5.285 1.414-1.414 3.871 3.871 9.871-9.871z'/></svg>") no-repeat center/10px;
}
.tarif-cta{width:100%}

/* comparaison */
.tarifs-compare{
  max-width:700px;margin:0 auto;
  background:var(--bg);
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
}
.compare-row{
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;
  padding:18px 28px;gap:12px;
  border-bottom:1px solid var(--border-soft);
  font-size:.93rem;
}
.compare-row:last-child{border-bottom:none}
.compare-label{color:var(--text);font-weight:500}
.compare-value{font-weight:600}
.compare-value--bad{color:var(--red-soft)}
.compare-value--mid{color:var(--amber-soft)}
.compare-value--good{color:var(--green-dark)}
.compare-row--highlight{
  background:linear-gradient(90deg,rgba(16,185,129,.08),rgba(59,130,246,.08));
}
.compare-row--highlight .compare-label{font-weight:700;color:var(--accent)}

/* ===== PORTFOLIO ===== */
.realisations-section{background:var(--bg-alt)}
.portfolio-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.portfolio-card{
  display:block;border-radius:var(--radius);overflow:hidden;
  background:var(--bg);border:1px solid var(--border);
  transition:transform var(--transition),box-shadow var(--transition);
}
.portfolio-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}

.portfolio-img{height:200px;overflow:hidden;position:relative}
.portfolio-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.portfolio-card:hover .portfolio-img img{transform:scale(1.06)}

.portfolio-overlay{
  position:absolute;inset:0;
  background:rgba(26,58,74,.72);
  display:flex;align-items:center;justify-content:center;
  opacity:0;transition:opacity .3s;
}
.portfolio-card:hover .portfolio-overlay{opacity:1}
.portfolio-overlay span{color:#fff;font-weight:600;font-size:.9rem}

.portfolio-info{padding:18px 20px;position:relative}
.portfolio-info h3{font-family:'DM Serif Display',serif;font-size:1.05rem;margin-bottom:3px}
.portfolio-info .niche{color:var(--text-light);font-size:.83rem;margin-bottom:10px}
.portfolio-tag{
  display:inline-block;
  font-size:.72rem;font-weight:600;
  padding:4px 10px;border-radius:50px;
  text-transform:uppercase;letter-spacing:.8px;
}
.portfolio-tag--onepage{background:rgba(59,130,246,.1);color:var(--blue)}
.portfolio-tag--multi{background:rgba(16,185,129,.1);color:var(--green-dark)}

/* carte CTA */
.portfolio-card--cta{
  background:linear-gradient(155deg,var(--accent),var(--accent-light));
  color:#fff;border:none;
  display:flex;align-items:center;justify-content:center;
  min-height:310px;
}
.portfolio-card--cta:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.portfolio-cta{padding:32px;text-align:center}
.portfolio-cta__plus{
  font-size:2.4rem;color:rgba(255,255,255,.5);margin-bottom:10px;line-height:1;
}
.portfolio-cta h3{font-family:'DM Serif Display',serif;font-size:1.3rem;margin-bottom:10px}
.portfolio-cta p{font-size:.9rem;color:rgba(255,255,255,.75);margin-bottom:18px}
.portfolio-cta__link{
  font-size:.88rem;font-weight:600;
  border-bottom:1px solid rgba(255,255,255,.4);
  padding-bottom:2px;
}

/* ===== TEMOIGNAGES ===== */
.section-temoignages{background:#fff}
.temoignages-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.temoignage{
  position:relative;
  background:var(--bg-alt);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:40px 28px 28px;
  transition:transform var(--transition),box-shadow var(--transition);
}
.temoignage:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.temoignage-quote{
  position:absolute;top:10px;left:24px;
  font-family:'DM Serif Display',serif;
  font-size:3.4rem;line-height:1;
  color:var(--blue);opacity:.3;
}
.temoignage blockquote{
  font-size:.96rem;line-height:1.7;color:var(--text);
  margin-bottom:24px;font-style:italic;
  position:relative;z-index:1;
}
.temoignage figcaption{display:flex;flex-direction:column;gap:2px}
.temoignage figcaption strong{
  font-family:'DM Serif Display',serif;
  font-size:1.05rem;font-weight:400;color:var(--accent);
}
.temoignage figcaption span{font-size:.84rem;color:var(--text-light)}

/* ===== AVANTAGES ===== */
.section-pourquoi{background:var(--bg-alt)}
.avantages-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;max-width:1000px;margin:0 auto}
.avantage{
  padding:28px 24px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);
  text-align:center;
  transition:transform var(--transition),box-shadow var(--transition);
}
.avantage:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.avantage-icon{font-size:1.6rem;margin-bottom:14px}
.avantage h3{font-family:'DM Serif Display',serif;font-size:1.05rem;margin-bottom:8px}
.avantage p{color:var(--text-light);font-size:.88rem}

/* ===== FAQ ===== */
.section-faq{background:#fff}
.faq-list{max-width:780px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--bg-alt);
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
  transition:border-color var(--transition),box-shadow var(--transition);
}
.faq-item[open]{border-color:#c5d5df;box-shadow:var(--shadow)}
.faq-item summary{
  cursor:pointer;list-style:none;
  padding:20px 28px;
  font-size:1rem;font-weight:600;color:var(--accent);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  transition:color var(--transition);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  font-size:1.6rem;font-weight:300;color:var(--text-light);
  line-height:1;
  transition:transform var(--transition);
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item summary:hover{color:var(--blue)}
.faq-answer{padding:0 28px 22px;color:var(--text-light);font-size:.95rem;line-height:1.7}
.faq-answer p em{color:var(--accent);font-style:italic;font-weight:500}

/* ===== CONTACT ===== */
.contact-section{background:linear-gradient(168deg,#f0f6fa 0%,#f0fdf4 100%)}
.contact-bloc{display:flex;justify-content:center;gap:28px;flex-wrap:wrap}
.contact-card{
  display:flex;align-items:center;gap:16px;
  background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);
  padding:28px 36px;
  transition:transform var(--transition),box-shadow var(--transition);
}
.contact-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.contact-icon{
  width:48px;height:48px;border-radius:50%;
  background:linear-gradient(135deg,var(--accent),var(--accent-light));
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.contact-icon svg{width:22px;height:22px;stroke:#fff;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.contact-label{font-size:.78rem;color:var(--text-light);text-transform:uppercase;letter-spacing:.5px;margin-bottom:2px}
.contact-value{font-family:'DM Serif Display',serif;font-size:1.2rem;color:var(--accent);transition:color var(--transition);display:block}
.contact-card:hover .contact-value{color:var(--blue)}

/* ===== FOOTER ===== */
.footer{background:var(--accent-dark);color:rgba(255,255,255,.72);padding:56px 0 24px}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;
  margin-bottom:40px;
}
.footer-logo{font-family:'DM Serif Display',serif;font-size:1.5rem;color:#fff;margin-bottom:12px}
.footer-logo span{color:rgba(255,255,255,.6)}
.footer-tag{font-size:.9rem;color:rgba(255,255,255,.65);line-height:1.6;max-width:340px}
.footer-col h4{
  color:#fff;font-size:.82rem;text-transform:uppercase;letter-spacing:1.5px;
  margin-bottom:16px;font-weight:600;
}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{
  color:rgba(255,255,255,.65);font-size:.92rem;
  transition:color var(--transition);
}
.footer-links a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding-top:20px;text-align:center;font-size:.82rem;
  color:rgba(255,255,255,.55);
}

/* ===== RESPONSIVE ===== */
@media(max-width:1024px){
  .hero .container{grid-template-columns:1fr;gap:40px}
  .hero-visual{max-width:500px;margin:0 auto}
  .avantages-grid{grid-template-columns:repeat(2,1fr)}
  .temoignages-grid{grid-template-columns:1fr;max-width:560px;margin:0 auto}
  .tarifs-grid{grid-template-columns:1fr;max-width:480px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:900px){
  .steps-grid{grid-template-columns:1fr;max-width:400px;margin:0 auto}
  .portfolio-grid{grid-template-columns:repeat(2,1fr)}
  .hero h1{font-size:2.5rem}
  .section{padding:72px 0}
  .hero{padding:120px 0 80px}
  .section-title{font-size:2rem}
}
@media(max-width:768px){
  .nav-links{
    position:fixed;top:68px;left:0;width:100%;
    background:rgba(255,255,255,.98);backdrop-filter:blur(12px);
    flex-direction:column;gap:0;
    max-height:0;overflow:hidden;transition:max-height .4s ease;
    border-bottom:1px solid #e4e4e4;
  }
  .nav-links.open{max-height:400px}
  .nav-links a{padding:16px 24px;width:100%;border-bottom:1px solid var(--border-soft)}
  .nav-cta{margin:16px 24px;text-align:center;width:calc(100% - 48px)}
  .nav-toggle{display:flex}
  .hero h1{font-size:2rem}
  .hero p{font-size:.95rem}
  .portfolio-grid{grid-template-columns:1fr}
  .avantages-grid{grid-template-columns:1fr}
  .section-title{font-size:1.8rem}
  .contact-bloc{flex-direction:column;align-items:center}
  .contact-card{width:100%;max-width:400px}
  .hero-float{display:none}
  .tarif-card{padding:32px 26px}
  .tarif-amount{font-size:3rem}
  .footer-grid{grid-template-columns:1fr;gap:28px;text-align:center}
  .footer-tag{margin:0 auto}
  .footer-links{align-items:center}
  .compare-row{flex-direction:column;gap:4px;text-align:center;padding:16px 20px}
  .faq-item summary{padding:18px 22px;font-size:.95rem}
  .faq-answer{padding:0 22px 20px}
}