html,
body {

    margin: 0;
    padding: 0;

    width: 100%;
    height: 100%;

    overflow: hidden;

}


body {

    font-family: Arial, Helvetica, sans-serif;

    background: #f5f7fb;

    color: #0d1b2a;

}



/* HEADER */

.top-header {

    height: 80px;

    box-sizing: border-box;

    background: #0d1b2a;

    color: white;

    display: flex;

    align-items: center;

    justify-content: space-between;

    padding: 0 40px;

}



.brand {

    display: flex;

    align-items: center;

    gap: 15px;

}



.logo {

    width: 55px;

    height: 55px;

    background: #2563eb;

    color: white;

    border-radius: 12px;

    display: flex;

    align-items: center;

    justify-content: center;

    font-size: 24px;

    font-weight: bold;

}



.brand-title h1 {

    margin: 0;

    font-size: 24px;

    font-weight: 600;

}



.brand-title span {

    color: #38bdf8;

    font-size: 14px;

}



.header-menu a {

    color: white;

    text-decoration: none;

    padding: 10px 25px;

    border: 1px solid rgba(255,255,255,0.3);

    border-radius: 8px;

}



.header-menu a:hover {

    background: rgba(255,255,255,0.1);

}



/* MAIN */

main {

    height: calc(100vh - 140px);

    display: flex;

    align-items: center;

    justify-content: center;

}



.hero {

    text-align: center;

}



.hero-logo {

    width: 140px;

    height: 140px;

    margin: 0 auto 30px;

    background: #2563eb;

    color: white;

    border-radius: 25px;

    display: flex;

    align-items: center;

    justify-content: center;

    font-size: 60px;

    font-weight: bold;

    box-shadow: 0 10px 30px rgba(0,0,0,0.15);

}



.hero h2 {

    margin: 0 auto;

    max-width: 650px;

    font-size: 34px;

    line-height: 1.3;

}



.btn-primary {

    display: inline-block;

    margin-top: 35px;

    padding: 14px 55px;

    background: #2563eb;

    color: white;

    text-decoration: none;

    border-radius: 10px;

    font-size: 16px;

}



.btn-primary:hover {

    background: #1d4ed8;

}



/* FOOTER */

footer {

    height: 60px;

    display: flex;

    align-items: center;

    justify-content: center;

    text-align: center;

    color: #64748b;

    font-size: 14px;

}



/* LOGIN PAGE SUPPORT */

.login-box {

    width: 360px;

    padding: 40px;

    background: white;

    border-radius: 15px;

    box-shadow: 0 10px 30px rgba(0,0,0,0.12);

    text-align: center;

    margin: auto;

}



.login-box h2 {

    margin-top: 0;

}



.login-box input {

    width: 90%;

    padding: 12px;

    margin-top: 10px;

    border: 1px solid #cbd5e1;

    border-radius: 8px;

    font-size: 15px;

}



.login-box button {

    width: 95%;

    padding: 13px;

    margin-top: 15px;

    background: #2563eb;

    color: white;

    border: none;

    border-radius: 8px;

    cursor: pointer;

}



.login-box button:hover {

    background: #1d4ed8;

}