:root {
    --bg:    #f7f5f0;
    --ink:   #1a1814;
    --sub:   #8a8680;
    --line:  #dedad3;
    --red:   #c0392b;
    --green: #1a6b3a;
    --mono:  'Geist Mono', monospace;
    --serif: 'Instrument Serif', serif;
}

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

body {
    background: var(--bg);
    color: var(--ink);
    font-family: var(--mono);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 80px 24px;
}

.logo {
    font-family: var(--serif);
    font-style: italic;
    font-size: 2.2rem;
    margin-bottom: 60px;
    text-align: center;
    letter-spacing: -0.01em;
}

.hero { text-align: center; margin-bottom: 64px; }
h1 { 
    font-family: var(--serif);
    font-style: italic;
    font-size: 2.8rem; 
    margin-bottom: 8px; 
    line-height: 1;
}
.tagline { 
    font-size: .72rem;
    color: var(--sub);
    letter-spacing: .12em;
    text-transform: uppercase;
    margin-bottom: 36px;
}

.btn-live {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--ink);
    color: var(--bg);
    text-decoration: none;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: opacity 0.2s;
}
.btn-live:hover { opacity: 0.85; }

.section-header {
    font-size: 0.65rem;
    color: var(--sub);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin: 64px 0 24px 0;
    display: flex;
    align-items: center;
    gap: 16px;
}
.section-header::after { content: ""; flex: 1; height: 1px; background: var(--line); }

/* Form */
.form-card {
    padding: 0;
}
.form-row { margin-bottom: 24px; }
label { display: block; font-size: 0.65rem; margin-bottom: 8px; color: var(--sub); text-transform: uppercase; letter-spacing: 0.05em; font-weight: 700; }

input {
    width: 100%;
    background: transparent;
    border: 1px solid var(--ink);
    padding: 13px 14px;
    color: var(--ink);
    font-family: var(--mono);
    font-size: 0.82rem;
    outline: none;
    transition: box-shadow 0.15s;
}
input:focus { box-shadow: 3px 3px 0 var(--ink); }

.btn-submit {
    width: 100%;
    padding: 14px;
    background: var(--ink);
    color: var(--bg);
    border: none;
    font-weight: 700;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    cursor: pointer;
}

.success-box {
    padding: 12px;
    background: #f1faf4;
    color: var(--green);
    font-size: 0.75rem;
    margin-bottom: 24px;
    border-left: 2px solid var(--green);
}

/* Library */
.spoiler { border-top: 1px solid var(--line); margin-top: 32px; }
.spoiler-summary {
    padding: 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}
.spoiler-summary h3 { font-size: 14px; font-weight: 600; font-family: var(--mono); }
.spoiler-icon { font-size: 10px; color: var(--sub); transition: 0.3s; }

.spoiler-content { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.spoiler.open .spoiler-content { max-height: 2000px; }
.spoiler.open .spoiler-icon { transform: rotate(180deg); }

.library-grid { padding-bottom: 32px; display: flex; flex-direction: column; gap: 4px; }
.lib-item {
    padding: 12px 14px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--line);
}
.lib-name { font-size: 0.8rem; font-weight: 400; }
.lib-tag { font-size: 0.65rem; color: var(--sub); text-transform: uppercase; letter-spacing: 0.05em; }

footer { text-align: center; color: var(--sub); font-size: 0.65rem; margin-top: 80px; padding-bottom: 60px; text-transform: uppercase; letter-spacing: 0.06em; }