/* ============================================
   YuliApp.net — global backbone
   Gray-on-white, minimal, professional
   ============================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
}

body {
    font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
    background: #ffffff;
    color: #555555;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.shell {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    padding: 26px 48px;
    border-bottom: 1px solid #e6e6e6;
}

.brand {
    font-size: 1.35rem;
    font-weight: 600;
    letter-spacing: 0.4px;
    color: #3a3a3a;
}

.brand span {
    color: #a3a3a3;
    font-weight: 400;
}

main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 48px;
}

.hero {
    text-align: center;
    max-width: 620px;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 300;
    color: #555555;
    letter-spacing: 1px;
    margin-bottom: 20px;
}

.hero .tagline {
    font-size: 1.5rem;
    font-weight: 300;
    color: #8a8a8a;
    margin-bottom: 10px;
}

.hero .sub {
    font-size: 1rem;
    color: #b0b0b0;
}

footer {
    padding: 20px 48px;
    border-top: 1px solid #e6e6e6;
    text-align: center;
    font-size: 0.85rem;
    color: #b8b8b8;
}