:root{
  --red:#E2001A;
  --red-dark:#C00018;
  --grey:#7B7C7E;
  --grey-light:#EFEFEF;
  --grey-border:#BFBFBF;
  --charcoal:#3C3D3E;
  --dark:#0A0A0A;
  --white:#FFFFFF;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background:linear-gradient(160deg,#f5f5f5 0%,#EFEFEF 45%,#fafafa 100%);
  color:var(--charcoal);
  line-height:1.5;
  min-height:100vh;
}

/* ---------- Top bar ---------- */
.topbar{
  display:flex;justify-content:space-between;align-items:center;
  padding:18px 28px;background:var(--white);
  position:sticky;top:0;z-index:50;border-bottom:2px solid var(--red);
  flex-wrap:wrap;gap:10px;box-shadow:0 2px 8px rgba(0,0,0,.06);
}
.brand{display:flex;align-items:center}
.brand-logo{
  max-height:40px;width:auto;height:auto;
}
.brand-name{font-size:20px;letter-spacing:1px;color:var(--charcoal)}
.brand-name b{color:var(--red)}
.topbar nav a{color:var(--grey);text-decoration:none;margin-left:22px;font-size:15px}
.topbar nav a:hover,.topbar nav a.active{color:var(--red);border-bottom:2px solid var(--red);padding-bottom:4px}

/* ---------- Hero ---------- */
.hero{
  position:relative;text-align:center;
  background:url("../images/bg-hero.jpg") center/cover no-repeat;
  min-height:100vh;
}
.hero-overlay{
  position:absolute;
  top:0;
  left:0;
  right:0;
  bottom:0;
  background:rgba(10,10,10,0.50);
}
.hero-content{
  position:relative;z-index:2;
  padding:80px 20px 40px;
}
.hero-content h1{
  font-size:48px;font-weight:800;color:var(--white);max-width:800px;margin:0 auto 18px;text-shadow:0 2px 20px rgba(0,0,0,0.4);
}
.hero-content h1 span{color:var(--red)}
.hero-content p{
  font-size:20px;max-width:640px;margin:0 auto;color:rgba(255,255,255,0.9);
}
.builder-main{
  position:relative;
  z-index:10;
  max-width:960px;
  margin-top:-800px;
  margin-left:auto;
  margin-right:auto;
}
.btn-red{
  display:inline-block;background:var(--red);
  color:var(--white);font-weight:800;font-size:17px;padding:15px 34px;border-radius:40px;
  text-decoration:none;border:none;cursor:pointer;transition:.2s;box-shadow:0 6px 20px rgba(226,0,26,.25);
}
.btn-red:hover{background:var(--red-dark);transform:translateY(-2px);box-shadow:0 10px 26px rgba(226,0,26,.35)}
.btn-red.btn-lg{width:100%;text-align:center;font-size:19px}
.btn-primary{
  background:var(--red);color:var(--white);border:none;cursor:pointer;
  font-weight:800;font-size:16px;padding:14px 24px;border-radius:40px;
  transition:.2s;box-shadow:0 6px 18px rgba(226,0,26,.25);
}
.btn-primary:hover{background:var(--red-dark);transform:translateY(-2px)}
.btn-block{width:100%}

/* ---------- Login ---------- */
.login-main{display:flex;justify-content:center;align-items:center;min-height:80vh;padding:20px}
.login-card{max-width:420px;width:100%;text-align:center}
.login-card h2{color:var(--charcoal);margin-bottom:4px}
.login-sub{color:var(--grey);margin-bottom:22px;font-size:15px}
.login-card .field{text-align:left;margin-bottom:16px}
.login-card .btn-primary{margin-top:8px}
.flash-login{margin-bottom:18px}
.flash{padding:10px 14px;border-radius:8px;font-size:14px;margin-bottom:8px}
.flash.error{background:rgba(226,0,26,.08);color:var(--red);border:1px solid var(--red)}
.flash.success{background:rgba(39,174,96,.08);color:#27AE60;border:1px solid #27AE60}
.topbar-user{display:flex;align-items:center;gap:14px}
.user-label{font-size:13px;color:var(--grey)}
.btn-logout{background:transparent;border:1px solid var(--red);color:var(--red);font-weight:700;font-size:13px;padding:7px 14px;border-radius:20px;cursor:pointer;transition:.2s}
.btn-logout:hover{background:var(--red);color:var(--white)}

/* ---------- Container / cards ---------- */
.container{max-width:960px;margin:0 auto;padding:0 20px}
.card{
  background:var(--white);border:1px solid var(--grey-border);
  border-radius:18px;padding:34px;box-shadow:0 2px 12px rgba(0,0,0,.06);
}
.card h2{font-size:26px;color:var(--charcoal);margin-bottom:6px}
.card h2.mt{margin-top:38px}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:14px}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:14px;font-weight:600;color:var(--red);letter-spacing:.5px}
.field input,.field select{
  padding:12px 14px;border-radius:10px;border:1px solid var(--grey-border);
  background:var(--white);color:var(--charcoal);font-size:16px;outline:none;
}
.field input:focus,.field select:focus{border-color:var(--red);box-shadow:0 0 0 3px rgba(226,0,26,.1)}
.field select option{color:var(--charcoal)}
.hint{color:var(--grey);font-size:15px;margin-top:4px}

/* ---------- Orientation ---------- */
.orient-choice{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:14px}
.orient-card{
  position:relative;display:flex;flex-direction:column;align-items:center;gap:8px;
  padding:18px 14px;border:2px solid var(--grey-border);border-radius:16px;
  cursor:pointer;background:var(--white);transition:.2s;text-align:center;
}
.orient-card:hover{border-color:var(--red);box-shadow:0 4px 14px rgba(226,0,26,.12)}
.orient-card.selected{border-color:var(--red);background:rgba(226,0,26,.04);box-shadow:0 4px 14px rgba(226,0,26,.15)}
.orient-card input{position:absolute;opacity:0;pointer-events:none}
.orient-icon{display:block;width:48px;height:48px;border:2px solid var(--red);border-radius:8px;flex-shrink:0}
.orient-portrait{width:34px;height:48px}
.orient-paysage{width:48px;height:34px}
.orient-label{font-weight:800;font-size:16px;color:var(--charcoal)}
.orient-sub{font-size:12px;color:var(--grey)}

/* ---------- Photos ---------- */
.photo-item{
  display:flex;gap:16px;align-items:flex-start;background:var(--white);
  border:1px solid var(--grey-border);border-radius:14px;padding:16px;margin-top:16px;position:relative;
}
.photo-preview{
  width:110px;height:110px;border-radius:10px;background:#ddd center/cover no-repeat;
  border:1px dashed var(--red);flex-shrink:0;
}
.photo-fields{flex:1;display:flex;flex-direction:column;gap:12px}
.remove{
  position:absolute;top:8px;right:8px;width:30px;height:30px;border-radius:50%;border:none;
  background:rgba(255,80,80,.85);color:#fff;font-size:14px;cursor:pointer;
}
.photo-actions{display:flex;gap:10px}
.btn-mini{
  flex:1;padding:10px;border-radius:8px;border:1px solid var(--red);
  background:rgba(226,0,26,.04);color:var(--red);font-weight:700;font-size:14px;
  cursor:pointer;transition:.2s;
}
.btn-mini:hover{background:var(--red);color:var(--white)}
.btn-ghost{
  display:inline-block;background:transparent;border:2px solid var(--red);color:var(--red);
  padding:12px 22px;border-radius:30px;font-size:15px;font-weight:700;cursor:pointer;
  text-decoration:none;margin-top:16px;transition:.2s;
}
.btn-ghost:hover{background:rgba(226,0,26,.06)}
.actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:20px}

/* ---------- Music selector ---------- */
.music-selector{margin-top:16px}
.music-tabs{display:flex;gap:8px;margin-bottom:16px}
.tab-btn{padding:10px 20px;border-radius:25px;border:1px solid var(--red);background:transparent;color:var(--red);cursor:pointer;font-size:14px;font-weight:700;transition:.2s}
.tab-btn.active{background:var(--red);color:var(--white)}
.tab-btn:hover{background:rgba(226,0,26,.1)}
.tab-content{display:none}
.tab-content.active{display:block}

.tracks-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px}
.track-card{
  background:var(--white);border:2px solid var(--grey-border);
  border-radius:12px;padding:14px;cursor:pointer;transition:.2s;text-align:center;
}
.track-card:hover{border-color:var(--red);background:rgba(226,0,26,.03)}
.track-card.selected{border-color:var(--red);background:rgba(226,0,26,.08);box-shadow:0 0 16px rgba(226,0,26,.12)}
.track-emoji{font-size:28px;display:block;margin-bottom:6px}
.track-name{color:var(--charcoal);font-weight:700;font-size:15px}
.track-meta{color:var(--grey);font-size:12px;margin-top:4px}
.track-play{display:none;margin-top:8px;background:var(--red);color:var(--white);border:none;padding:6px 16px;border-radius:20px;font-weight:700;font-size:13px;cursor:pointer}
.track-card.selected .track-play{display:inline-block}

.music-player{margin-top:16px;padding:16px;background:var(--white);border-radius:12px;border:1px solid var(--grey-border)}
.player-info{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}
.player-name{color:var(--charcoal);font-weight:700}
.player-badge{font-size:11px;background:var(--red);color:var(--white);padding:3px 10px;border-radius:20px;font-weight:700}
.music-player audio{width:100%}

/* ---------- How ---------- */
.how{background:var(--grey-light);padding:60px 0;margin-top:50px}
.how h2{text-align:center;font-size:34px;color:var(--charcoal);margin-bottom:36px}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{background:var(--white);border:1px solid var(--grey-border);border-radius:14px;padding:24px;text-align:center}
.step span{
  width:48px;height:48px;border-radius:50%;background:var(--red);color:var(--white);
  font-weight:900;font-size:20px;display:inline-flex;align-items:center;justify-content:center;margin-bottom:14px;
}
.step h3{color:var(--charcoal);margin-bottom:8px}
.step p{color:var(--grey);font-size:14px}

/* ---------- Footer ---------- */
footer{background:var(--dark);border-top:2px solid var(--red);margin-top:60px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px;padding:40px 20px}
footer h4{color:var(--red);margin-bottom:10px}
footer p{color:var(--grey);font-size:15px}
.copyright{text-align:center;padding:16px;color:#7f8ea0;font-size:13px;border-top:1px solid rgba(255,255,255,.08)}

/* ---------- Result ---------- */
.result-wrap{padding-top:50px}
.result-card{text-align:center}
.video-frame{max-width:420px;margin:24px auto;border-radius:18px;overflow:hidden;border:3px solid var(--red);background:#000}
.video-frame--paysage{max-width:760px}
.video-frame video{width:100%;display:block}

/* ---------- Flash ---------- */
.flash{padding:14px 18px;border-radius:10px;margin:12px 0;font-weight:600}
.flash-error{background:rgba(255,80,80,.12);border:1px solid #ff6b6b;color:#c00}
.flash-success{background:rgba(60,180,120,.12);border:1px solid #3cb478;color:#2a7a50}

/* ---------- Responsive ---------- */
@media (max-width:720px){
  .builder-main{margin-top:-350px}
  .hero h1{font-size:34px}
  .hero p{font-size:17px}
  .grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr}
  .topbar{padding:14px 16px}
  .topbar nav a{margin-left:14px;font-size:13px}
  .brand-name{font-size:16px}
  .photo-item{flex-direction:column}
  .photo-preview{width:100%;height:170px}
  .card{padding:22px;border-radius:0}
  .footer-grid{grid-template-columns:1fr;gap:20px}
}
@media (max-width:460px){
  .steps{grid-template-columns:1fr}
}