*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --white:#ffffff;
  --blue-50:#eff6ff;
  --blue-100:#dbeafe;
  --blue-200:#bfdbfe;
  --blue-400:#60a5fa;
  --blue-500:#3b82f6;
  --blue-600:#2563eb;
  --blue-700:#1d4ed8;
  --green-400:#4ade80;
  --green-500:#22c55e;
  --green-600:#16a34a;
  --gray-50:#f9fafb;
  --gray-100:#f3f4f6;
  --gray-200:#e5e7eb;
  --gray-300:#d1d5db;
  --gray-700:#374151;
  --gray-800:#1f2937;
  --gray-900:#111827;
}
body{
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  background:linear-gradient(135deg,var(--white) 0%,var(--blue-50) 50%,#f0fdf4 100%);
  color:var(--gray-800);
  min-height:100vh;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
.container{max-width:1200px;margin:0 auto;padding:0 1.5rem}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:0.75rem 2rem;border-radius:0.75rem;font-weight:600;
  font-size:0.95rem;text-decoration:none;transition:all 0.2s ease;
  border:none;cursor:pointer;gap:0.5rem;
}
.btn-primary{
  background:linear-gradient(135deg,var(--blue-600),var(--green-500));
  color:var(--white);box-shadow:0 4px 14px rgba(37,99,235,0.25);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(37,99,235,0.35)}
.btn-secondary{
  background:var(--white);color:var(--gray-800);
  border:1.5px solid var(--gray-200);
}
.btn-secondary:hover{border-color:var(--blue-400);color:var(--blue-600)}
.card{
  background:rgba(255,255,255,0.85);backdrop-filter:blur(20px);
  border:1px solid rgba(255,255,255,0.6);border-radius:1.25rem;
  padding:2rem;box-shadow:0 4px 24px rgba(0,0,0,0.04);
}
input,textarea,select{
  width:100%;padding:0.875rem 1rem;border:1.5px solid var(--gray-200);
  border-radius:0.75rem;font-size:0.95rem;transition:all 0.2s;
  background:var(--white);color:var(--gray-800);
}
input:focus,textarea:focus,select:focus{
  outline:none;border-color:var(--blue-400);
  box-shadow:0 0 0 3px rgba(59,130,246,0.1);
}
label{display:block;font-weight:500;margin-bottom:0.5rem;color:var(--gray-700);font-size:0.9rem}
.alert{padding:1rem 1.25rem;border-radius:0.75rem;margin-bottom:1rem;font-size:0.9rem}
.alert-success{background:#f0fdf4;border:1px solid var(--green-400);color:var(--green-600)}
.alert-error{background:#fef2f2;border:1px solid #fca5a5;color:#dc2626}
nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(255,255,255,0.8);backdrop-filter:blur(20px);
  border-bottom:1px solid rgba(255,255,255,0.5);
}
nav .container{display:flex;align-items:center;justify-content:space-between;min-height:4rem;height:auto}
nav .logo{
  font-size:1.25rem;font-weight:700;
  background:linear-gradient(135deg,var(--blue-600),var(--green-500));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
}
nav .nav-links{display:flex;gap:1.5rem;align-items:center}
nav .nav-links a{text-decoration:none;color:var(--gray-700);font-weight:500;font-size:0.9rem;transition:color 0.2s;padding:0.5rem 0}
nav .nav-links a:hover{color:var(--blue-600)}
.hero{padding:8rem 0 4rem;text-align:center}
.hero h1{
  font-size:3.5rem;font-weight:800;line-height:1.1;margin-bottom:1.5rem;
  background:linear-gradient(135deg,var(--gray-900) 0%,var(--blue-700) 50%,var(--green-600) 100%);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.hero p{font-size:1.2rem;color:var(--gray-700);max-width:600px;margin:0 auto 2.5rem}
.features{padding:4rem 0;display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem}
.feature-card{padding:2rem;text-align:center}
.feature-card .icon{
  width:3.5rem;height:3.5rem;margin:0 auto 1rem;
  background:linear-gradient(135deg,var(--blue-100),#dcfce7);
  border-radius:1rem;display:flex;align-items:center;justify-content:center;
  font-size:1.5rem;
}
.feature-card h3{font-size:1.1rem;font-weight:600;margin-bottom:0.5rem}
.feature-card p{font-size:0.9rem;color:var(--gray-700)}
.form-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem}
.form-box{max-width:420px;width:100%}
.form-box h2{font-size:1.75rem;font-weight:700;text-align:center;margin-bottom:0.5rem}
.form-box p{text-align:center;color:var(--gray-700);margin-bottom:2rem;font-size:0.9rem}
.form-box .btn{width:100%;margin-top:0.5rem}
.form-footer{text-align:center;margin-top:1.5rem;font-size:0.9rem;color:var(--gray-700)}
.form-footer a{color:var(--blue-600);text-decoration:none;font-weight:500}
.form-footer a:hover{text-decoration:underline}
.dashboard{padding:6rem 0 2rem}
.dashboard-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:2rem;gap:1rem;flex-wrap:wrap}
.dashboard-header h1{font-size:1.75rem;font-weight:700}
.link-card{
  display:flex;align-items:center;gap:1rem;padding:1.25rem;
  margin-bottom:1rem;transition:all 0.2s;
}
.link-card:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(0,0,0,0.08)}
.link-icon{
  width:2.5rem;height:2.5rem;border-radius:0.75rem;
  background:linear-gradient(135deg,var(--blue-100),#dcfce7);
  display:flex;align-items:center;justify-content:center;font-size:1rem;
  flex-shrink:0;
}
.link-info{flex:1;min-width:0}
.link-info h4{font-size:0.95rem;font-weight:600;margin-bottom:0.15rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.link-info a{font-size:0.8rem;color:var(--blue-600);text-decoration:none;word-break:break-all}
.link-info a:hover{text-decoration:underline}
.link-actions{display:flex;gap:0.5rem}
.link-actions button,.link-actions a{
  padding:0.4rem 0.75rem;border-radius:0.5rem;font-size:0.8rem;
  border:none;cursor:pointer;text-decoration:none;font-weight:500;
  min-height:32px;display:inline-flex;align-items:center;justify-content:center;
}
.profile-url-container{
  display:flex;align-items:center;gap:0.75rem;flex-wrap:wrap;
}
.profile-url-label{
  font-size:0.9rem;color:var(--gray-700);white-space:nowrap;
}
.profile-url-code{
  background:var(--gray-100);padding:0.4rem 0.75rem;border-radius:0.5rem;
  font-size:0.85rem;flex:1;min-width:0;word-break:break-all;font-family:monospace;
}
.profile-url-btn{
  padding:0.4rem 0.75rem;font-size:0.8rem;white-space:nowrap;
}
.modal-buttons{
  display:flex;gap:0.75rem;flex-wrap:wrap;
}
.modal-buttons .btn{
  flex:1;min-width:120px;
}
.btn-edit{background:var(--blue-50);color:var(--blue-600)}
.btn-delete{background:#fef2f2;color:#dc2626}
.btn-copy{background:#f0fdf4;color:var(--green-600)}
.modal{
  display:none;position:fixed;top:0;left:0;right:0;bottom:0;
  background:rgba(0,0,0,0.5);z-index:200;align-items:center;justify-content:center;padding:1rem;
}
.modal.active{display:flex}
.modal-content{
  background:var(--white);border-radius:1.25rem;padding:2rem;
  max-width:480px;width:100%;max-height:90vh;overflow-y:auto;
}
.modal-content h3{font-size:1.25rem;font-weight:600;margin-bottom:1.5rem}
.profile-page{min-height:100vh;display:flex;flex-direction:column;align-items:center;padding:3rem 1.5rem}
.profile-header{text-align:center;margin-bottom:2.5rem}
.profile-avatar{
  width:5rem;height:5rem;border-radius:1.5rem;
  background:linear-gradient(135deg,var(--blue-600),var(--green-500));
  display:flex;align-items:center;justify-content:center;
  font-size:2rem;color:var(--white);font-weight:700;margin:0 auto 1rem;
  overflow:hidden;
}
.profile-avatar-img{
  width:5rem;height:5rem;border-radius:1.5rem;
  object-fit:cover;margin:0 auto 1rem;
  display:block;
}
.profile-photo-card h3{font-size:1.1rem;font-weight:600;margin-bottom:1rem}
.profile-photo-container{display:flex;align-items:center;gap:1.5rem;flex-wrap:wrap}
.profile-photo-preview{width:4rem;height:4rem;border-radius:1rem;overflow:hidden;flex-shrink:0;background:linear-gradient(135deg,var(--blue-100),#dcfce7);display:flex;align-items:center;justify-content:center}
.profile-photo-img{width:100%;height:100%;object-fit:cover}
.profile-photo-default{font-size:1.5rem;font-weight:700;background:linear-gradient(135deg,var(--blue-600),var(--green-500));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}
.profile-photo-actions{display:flex;gap:0.5rem;flex-wrap:wrap}
.photo-upload-form{display:inline-block}
.photo-upload-label{font-size:0.85rem;padding:0.5rem 1rem;cursor:pointer}
.profile-header h1{font-size:1.5rem;font-weight:700}
.profile-header p{font-size:0.9rem;color:var(--gray-700);margin-top:0.25rem}
.profile-links{width:100%;max-width:480px}
.profile-link{
  display:flex;align-items:center;gap:0.75rem;
  padding:1rem 1.25rem;margin-bottom:0.75rem;
  text-decoration:none;color:var(--gray-800);
  transition:all 0.2s;
}
.profile-link:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(0,0,0,0.08)}
.profile-link .link-icon{font-size:1.1rem}
.profile-link span{flex:1;font-weight:500;font-size:0.95rem}
.profile-link .arrow{color:var(--gray-300);font-size:0.9rem}
.profile-footer{
  margin-top:3rem;font-size:0.8rem;color:var(--gray-300);
}
@media(max-width:768px){
  .hero h1{font-size:2.25rem}
  .hero p{font-size:1rem}
  nav .nav-links{gap:0.75rem}
  nav .nav-links a{font-size:0.85rem;padding:0.5rem 0.25rem}
  .dashboard-header{flex-direction:column;align-items:flex-start;gap:0.75rem}
  .dashboard-header > div{width:100%}
  .dashboard-header .btn{width:100%;justify-content:center;padding:0.875rem 2rem;font-size:1rem}
  .link-card{flex-wrap:wrap;padding:1rem;gap:0.75rem}
  .link-card .link-icon{width:2.25rem;height:2.25rem;font-size:0.9rem}
  .link-card .link-info{flex:1;min-width:60%}
  .link-card .link-actions{width:100%;margin-top:0.5rem;justify-content:flex-start;gap:0.5rem}
  .link-card .link-actions button,.link-card .link-actions a{min-height:40px;display:inline-flex;align-items:center;padding:0.5rem 0.85rem;font-size:0.85rem}
  .profile-url-container{flex-wrap:wrap}
  .profile-url-code{flex-basis:100%;order:-1;margin-bottom:0.5rem;font-size:0.8rem}
  .profile-url-btn{width:100%;padding:0.6rem 1rem;font-size:0.85rem}
  .modal-buttons{flex-direction:column}
  .modal-buttons .btn{width:100%;padding:0.75rem 1.5rem}
  .profile-photo-container{flex-direction:column;align-items:flex-start;gap:1rem}
  .profile-photo-preview{width:4.5rem;height:4.5rem;border-radius:1.25rem}
  .profile-photo-actions{width:100%}
  .profile-photo-actions .btn,.profile-photo-actions form{width:100%}
  .profile-photo-actions .photo-upload-label{width:100%;justify-content:center}
}
@media(max-width:480px){
  .container{padding:0 1rem}
  .hero h1{font-size:1.75rem}
  .dashboard{padding:4.5rem 0 1rem}
  .dashboard-header h1{font-size:1.35rem;line-height:1.3}
  .dashboard-header p{font-size:0.85rem}
  .link-card{padding:0.875rem;gap:0.625rem;margin-bottom:0.75rem}
  .link-card .link-icon{width:2rem;height:2rem;font-size:0.85rem}
  .link-card .link-info h4{font-size:0.85rem;margin-bottom:0.1rem}
  .link-card .link-info a{font-size:0.75rem;line-height:1.4}
  .link-card .link-info div{font-size:0.7rem}
  .link-card .link-actions{justify-content:center;gap:0.35rem}
  .link-card .link-actions button,.link-card .link-actions a{font-size:0.75rem;padding:0.5rem 0.75rem;min-height:42px;flex:1;min-width:0;text-align:center}
  .modal-content{padding:1.25rem;margin:0.5rem;max-height:85vh;border-radius:1rem}
  .modal-content h3{font-size:1.1rem;margin-bottom:1rem}
  input,textarea,select{padding:0.75rem 0.85rem;font-size:16px;border-radius:0.625rem}
  .btn{padding:0.75rem 1.5rem;font-size:0.9rem;min-height:44px;border-radius:0.625rem}
  nav .container{padding:0 1rem;flex-wrap:wrap;height:auto;padding-top:0.5rem;padding-bottom:0.5rem}
  nav .logo{font-size:1.1rem}
  nav .nav-links{gap:0.5rem;flex-wrap:wrap;justify-content:center}
  nav .nav-links a{font-size:0.8rem;padding:0.4rem 0.15rem}
  .profile-url-label{font-size:0.85rem}
  .profile-url-code{font-size:0.75rem;padding:0.35rem 0.5rem}
  .profile-url-btn{font-size:0.75rem;padding:0.5rem 0.75rem;min-height:38px}
  .modal-buttons .btn{min-width:0;font-size:0.85rem}
  .profile-avatar,.profile-avatar-img{width:4rem;height:4rem;border-radius:1.25rem;font-size:1.5rem}
  .profile-header h1{font-size:1.25rem}
  .profile-header p{font-size:0.8rem}
  .profile-link{padding:0.875rem 1rem;margin-bottom:0.625rem;border-radius:1rem}
  .profile-link span{font-size:0.9rem}
  .profile-photo-card h3{font-size:1rem}
  .profile-photo-preview{width:3.5rem;height:3.5rem;border-radius:1rem}
  .profile-photo-default{font-size:1.25rem}
  .photo-upload-label{font-size:0.8rem;padding:0.45rem 0.75rem}
}
@media(max-width:360px){
  .container{padding:0 0.75rem}
  .dashboard-header h1{font-size:1.2rem}
  .dashboard{padding:4rem 0 1rem}
  .link-card{padding:0.75rem;gap:0.5rem}
  .link-card .link-info h4{font-size:0.8rem}
  .link-card .link-info a{font-size:0.7rem}
  .link-card .link-actions{justify-content:center}
  .link-card .link-actions button,.link-card .link-actions a{font-size:0.7rem;padding:0.45rem 0.6rem;flex:1;min-width:0;text-align:center}
  .modal-content{padding:1rem;margin:0.25rem;border-radius:0.875rem}
  input,textarea,select{font-size:16px;padding:0.625rem 0.75rem}
  .btn{padding:0.625rem 1.25rem;font-size:0.85rem;min-height:42px}
  .profile-url-label{font-size:0.8rem}
  .profile-url-code{font-size:0.7rem;padding:0.35rem 0.5rem}
  .profile-url-btn{font-size:0.7rem;padding:0.45rem 0.6rem;min-height:36px}
  nav .logo{font-size:1rem}
  nav .nav-links a{font-size:0.75rem;padding:0.35rem 0.1rem}
  .profile-avatar,.profile-avatar-img{width:3.5rem;height:3.5rem;border-radius:1rem;font-size:1.25rem}
  .profile-header h1{font-size:1.1rem}
  .profile-link{padding:0.75rem;border-radius:0.875rem}
  .profile-link span{font-size:0.85rem}
   .profile-photo-preview{width:3rem;height:3rem;border-radius:0.875rem}
 }