*{margin:0;padding:0;box-sizing:border-box}
body{
    font-family:system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
    min-height:100vh;
    display:flex;
    flex-direction:column;
    background:linear-gradient(135deg,#0f172a 0%,#1e3a5f 40%,#2563eb 100%);
    overflow-x:hidden;
}
.bg-pattern{
    position:fixed;top:0;left:0;width:100%;height:100%;
    background-image:
        radial-gradient(circle at 20% 50%,rgba(59,130,246,0.15) 0%,transparent 50%),
        radial-gradient(circle at 80% 20%,rgba(99,102,241,0.1) 0%,transparent 50%),
        radial-gradient(circle at 60% 80%,rgba(14,165,233,0.1) 0%,transparent 50%);
    pointer-events:none;z-index:0;
}
.floating-shapes{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:0;overflow:hidden}
.shape{position:absolute;border-radius:50%;opacity:.07;background:#fff;animation:float 20s infinite ease-in-out}
.shape:nth-child(1){width:300px;height:300px;top:-80px;left:-60px;animation-delay:0s}
.shape:nth-child(2){width:200px;height:200px;bottom:-40px;right:-40px;animation-delay:-5s}
.shape:nth-child(3){width:150px;height:150px;top:40%;right:10%;animation-delay:-10s}
@keyframes float{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(-30px) rotate(180deg)}}

.login-wrapper{
    position:relative;z-index:1;
    display:flex;flex-direction:column;align-items:center;justify-content:center;
    min-height:100vh;padding:20px;
}

.lang-switcher-top{
    position:fixed;top:16px;right:16px;z-index:10;
}
.lang-switcher-top .dropdown-toggle{
    background:rgba(255,255,255,0.1);border:1px solid rgba(255,255,255,0.2);
    color:#fff;font-size:13px;padding:6px 14px;border-radius:8px;
    backdrop-filter:blur(10px);transition:all .2s;
}
.lang-switcher-top .dropdown-toggle:hover{background:rgba(255,255,255,0.2)}
.lang-switcher-top .dropdown-menu{
    background:#1e293b;border:1px solid rgba(255,255,255,0.1);
    border-radius:10px;padding:6px;margin-top:4px;min-width:auto;
    box-shadow:0 10px 40px rgba(0,0,0,0.3);
}
.lang-switcher-top .dropdown-item{
    color:#cbd5e1;padding:8px 16px;border-radius:6px;font-size:13px;transition:all .15s;
}
.lang-switcher-top .dropdown-item:hover,.lang-switcher-top .dropdown-item.active{
    background:rgba(59,130,246,0.3);color:#fff;
}

.login-card{
    width:100%;max-width:420px;
    background:rgba(255,255,255,0.95);
    border-radius:20px;
    box-shadow:0 25px 60px rgba(0,0,0,0.3),0 0 0 1px rgba(255,255,255,0.1);
    overflow:hidden;
    animation:slideUp .6s cubic-bezier(.16,1,.3,1);
    backdrop-filter:blur(20px);
}
@keyframes slideUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}

.login-header{
    text-align:center;padding:36px 32px 0;
}
.logo-circle{
    width:72px;height:72px;margin:0 auto 16px;
    background:linear-gradient(135deg,#2563eb,#7c3aed);
    border-radius:18px;display:flex;align-items:center;justify-content:center;
    box-shadow:0 8px 24px rgba(37,99,235,0.3);
}
.logo-circle i{font-size:36px;color:#fff}
.login-header h1{
    font-size:22px;font-weight:700;color:#0f172a;margin-bottom:4px;letter-spacing:-0.5px;
}
.login-header p{
    font-size:14px;color:#64748b;
}

.login-body{padding:28px 32px 32px}

.alert-custom{
    border-radius:10px;font-size:13px;padding:10px 14px;margin-bottom:18px;
    display:flex;align-items:center;gap:8px;
}
.alert-custom.success{background:#f0fdf4;color:#166534;border:1px solid #bbf7d0}
.alert-custom.error{background:#fef2f2;color:#991b1b;border:1px solid #fecaca}

.input-group-custom{
    position:relative;margin-bottom:18px;
}
.input-group-custom label{
    display:block;font-size:13px;font-weight:500;color:#475569;margin-bottom:6px;
}
.input-wrap{
    position:relative;
}
.input-wrap i.field-icon{
    position:absolute;left:14px;top:50%;transform:translateY(-50%);
    font-size:18px;color:#94a3b8;transition:color .2s;pointer-events:none;z-index:2;
}
.input-wrap input{
    width:100%;padding:12px 14px 12px 44px;
    border:1.5px solid #e2e8f0;border-radius:12px;
    font-size:15px;color:#0f172a;background:#f8fafc;
    transition:all .2s;outline:none;font-family:inherit;
}
.input-wrap input:focus{
    border-color:#2563eb;background:#fff;
    box-shadow:0 0 0 3px rgba(37,99,235,0.12);
}
.input-wrap input:focus ~ i.field-icon,
.input-wrap input:focus + i.field-icon{color:#2563eb}
.input-wrap .toggle-pass{
    position:absolute;right:12px;top:50%;transform:translateY(-50%);
    background:none;border:none;color:#94a3b8;cursor:pointer;padding:4px;
    font-size:18px;z-index:2;transition:color .2s;line-height:1;
}
.input-wrap .toggle-pass:hover{color:#475569}
.input-wrap input[type="password"]{padding-right:44px}
.input-wrap input[type="text"]{padding-right:44px}

.form-check-custom{margin-bottom:22px}
.form-check-custom .form-check-input:checked{background-color:#2563eb;border-color:#2563eb}
.form-check-custom .form-check-label{font-size:13px;color:#64748b;cursor:pointer}

.btn-signin{
    width:100%;padding:13px;font-size:15px;font-weight:600;
    border:none;border-radius:12px;cursor:pointer;
    background:linear-gradient(135deg,#2563eb,#7c3aed);
    color:#fff;transition:all .3s;position:relative;overflow:hidden;
    letter-spacing:0.3px;
}
.btn-signin:hover{
    transform:translateY(-2px);
    box-shadow:0 8px 24px rgba(37,99,235,0.35);
}
.btn-signin:active{transform:translateY(0)}
.btn-signin:disabled{opacity:.7;cursor:not-allowed;transform:none;box-shadow:none}
.btn-signin .spinner-border{width:18px;height:18px;border-width:2px}
.btn-signin .btn-text{transition:opacity .2s}
.btn-signin.loading .btn-text{opacity:0}
.btn-signin.loading .spinner-wrap{opacity:1}
.spinner-wrap{
    position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
    opacity:0;transition:opacity .2s;
}

.forgot-link{
    display:block;text-align:center;margin-top:16px;
    font-size:13px;color:#64748b;text-decoration:none;transition:color .2s;
}
.forgot-link:hover{color:#2563eb}

.login-footer{
    text-align:center;padding:16px 32px 24px;
    font-size:12px;color:#94a3b8;
}
.login-footer a{color:#2563eb;text-decoration:none}

@media(max-width:480px){
    .login-card{border-radius:16px;margin:10px}
    .login-header{padding:28px 24px 0}
    .login-body{padding:24px 24px 28px}
    .lang-switcher-top{top:10px;right:10px}
}