/* ============================================================
   DHT MCP Admin Dashboard — Dark Theme
   ============================================================ */

:root {
    --bg-base:        #0d1117;
    --bg-surface:     #161b22;
    --bg-elevated:    #21262d;
    --bg-hover:       #30363d;
    --border:         #30363d;
    --border-subtle:  #21262d;
    --text-primary:   #e6edf3;
    --text-secondary: #8b949e;
    --text-muted:     #656d76;
    --accent:         #58a6ff;
    --accent-hover:   #79c0ff;
    --success:        #3fb950;
    --warning:        #d29922;
    --danger:         #f85149;
    --radius-sm:      4px;
    --radius:         8px;
    --radius-lg:      12px;
    --shadow:         0 1px 3px rgba(0,0,0,.4);
    --shadow-md:      0 4px 12px rgba(0,0,0,.5);
    --font:           -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono:      'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
}

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

html, body {
    height: 100%;
    background: var(--bg-base);
    color: var(--text-primary);
    font-family: var(--font);
    font-size: 14px;
    line-height: 1.6;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); text-decoration: underline; }

/* ── Login ── */
#login-overlay {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--bg-base);
}
.login-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2.5rem 2rem;
    width: 100%;
    max-width: 360px;
    box-shadow: var(--shadow-md);
    text-align: center;
}
.login-card h1 { font-size: 1.8rem; font-weight: 700; color: var(--accent); margin-bottom: .25rem; }
.login-subtitle { color: var(--text-secondary); margin-bottom: 1.5rem; font-size: .9rem; }
.login-card form { display: flex; flex-direction: column; gap: .75rem; text-align: left; }
.login-card label { font-size: .8rem; font-weight: 500; color: var(--text-secondary); }
.login-card input { width: 100%; }
.error-text { color: var(--danger); font-size: .8rem; text-align: center; }

/* ── Header ── */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 0 1.5rem;
    height: 56px;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
}
.header__brand { display: flex; align-items: center; gap: .5rem; }
.header__logo { font-size: 1.2rem; }
.header__title { font-weight: 700; font-size: 1rem; }
.header__nav { display: flex; gap: .25rem; flex: 1; }
.nav-link {
    padding: .35rem .75rem;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: .85rem;
    font-weight: 500;
    transition: color .15s, background .15s;
}
.nav-link:hover, .nav-link.active {
    color: var(--text-primary);
    background: var(--bg-hover);
    text-decoration: none;
}
.nav-link.active { color: var(--accent); }

/* ── Main ── */
.main-content { padding: 2rem 1.5rem; max-width: 1200px; margin: 0 auto; }

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    padding: .45rem .9rem;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-family: var(--font);
    font-size: .85rem;
    font-weight: 500;
    cursor: pointer;
    transition: background .15s, border-color .15s, color .15s;
    white-space: nowrap;
}
.btn--primary { background: var(--accent); color: #0d1117; border-color: var(--accent); }
.btn--primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn--danger  { background: transparent; color: var(--danger); border-color: var(--danger); }
.btn--danger:hover { background: var(--danger); color: #fff; }
.btn--ghost   { background: transparent; color: var(--text-secondary); border-color: var(--border); }
.btn--ghost:hover { color: var(--text-primary); background: var(--bg-hover); }
.btn--sm { padding: .3rem .65rem; font-size: .8rem; }
.btn--full { width: 100%; justify-content: center; }

/* ── Forms ── */
input[type=text], input[type=email], input[type=password], select, textarea {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font);
    font-size: .875rem;
    padding: .45rem .75rem;
    width: 100%;
    transition: border-color .15s;
    outline: none;
}
input:focus, select:focus, textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(88,166,255,.15);
}
input::placeholder { color: var(--text-muted); }
select option { background: var(--bg-elevated); }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-grid .form-group--full { grid-column: 1 / -1; }
.form-group { display: flex; flex-direction: column; gap: .35rem; }
.form-group label { font-size: .8rem; font-weight: 500; color: var(--text-secondary); }

/* ── Cards ── */
.card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem 1.5rem;
    box-shadow: var(--shadow);
}
.card__title { font-size: 1rem; font-weight: 600; margin-bottom: 1rem; }

/* ── Page Header ── */
.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.5rem; }
.page-header h2 { font-size: 1.25rem; font-weight: 700; }

/* ── Stats Grid ── */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1rem; margin-bottom: 1.5rem; }
.stat-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem 1.5rem;
}
.stat-card__label { font-size: .75rem; font-weight: 600; text-transform: uppercase; letter-spacing: .05em; color: var(--text-secondary); margin-bottom: .5rem; }
.stat-card__value { font-size: 2rem; font-weight: 700; color: var(--text-primary); }
.stat-card__sub   { font-size: .8rem; color: var(--text-muted); margin-top: .25rem; }

/* ── Table ── */
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border); }
table { width: 100%; border-collapse: collapse; }
thead { background: var(--bg-elevated); }
th {
    padding: .65rem 1rem;
    text-align: left;
    font-size: .75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
}
td {
    padding: .75rem 1rem;
    font-size: .875rem;
    border-bottom: 1px solid var(--border-subtle);
    vertical-align: middle;
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: var(--bg-hover); }
.td-actions { display: flex; gap: .4rem; }

/* ── Badges ── */
.badge {
    display: inline-block;
    padding: .15rem .5rem;
    border-radius: 9999px;
    font-size: .7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .04em;
}
.badge--active  { background: rgba(63,185,80,.15); color: var(--success); }
.badge--inactive { background: rgba(248,81,73,.15); color: var(--danger); }
.badge--plan    { background: rgba(88,166,255,.15); color: var(--accent); }

/* ── Monospace ── */
.mono { font-family: var(--font-mono); font-size: .8rem; }

/* ── Alert / Info boxes ── */
.alert {
    padding: .75rem 1rem;
    border-radius: var(--radius-sm);
    font-size: .875rem;
    margin-bottom: 1rem;
}
.alert--success { background: rgba(63,185,80,.1); border: 1px solid rgba(63,185,80,.3); color: var(--success); }
.alert--danger  { background: rgba(248,81,73,.1);  border: 1px solid rgba(248,81,73,.3);  color: var(--danger); }
.alert--info    { background: rgba(88,166,255,.1); border: 1px solid rgba(88,166,255,.3); color: var(--accent); }

/* ── Loading ── */
.loading-indicator { text-align: center; color: var(--text-muted); padding: 3rem 1rem; }

/* ── Modal / API Key reveal ── */
.modal-backdrop {
    position: fixed; inset: 0; background: rgba(0,0,0,.7);
    display: flex; align-items: center; justify-content: center;
    z-index: 1000;
}
.modal {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    max-width: 480px;
    width: 90%;
    box-shadow: var(--shadow-md);
}
.modal h3 { margin-bottom: .75rem; font-size: 1.1rem; }
.modal .key-display {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: .75rem 1rem;
    font-family: var(--font-mono);
    font-size: .85rem;
    word-break: break-all;
    margin: 1rem 0;
    color: var(--success);
}
.modal p { color: var(--text-secondary); font-size: .875rem; margin-bottom: 1rem; }
.modal__actions { display: flex; justify-content: flex-end; gap: .5rem; margin-top: 1rem; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-base); }
::-webkit-scrollbar-thumb { background: var(--bg-hover); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ── Back link ── */
.back-link { display: inline-flex; align-items: center; gap: .35rem; color: var(--text-secondary); font-size: .875rem; margin-bottom: 1.25rem; }
.back-link:hover { color: var(--text-primary); text-decoration: none; }