:root {
    --bg: #0a0e15;
    --bg-elevated: #12161f;
    --bg-elevated-2: #171d29;
    --border: rgba(255, 255, 255, 0.08);
    --border-strong: rgba(255, 255, 255, 0.16);
    --text: #e7ebf1;
    --text-muted: #8f99ab;
    --text-faint: #5c6678;
    --accent: #22e6a3;
    --accent-strong: #15c98c;
    --accent-soft: rgba(34, 230, 163, 0.12);
    --accent-ink: #06231a;
    --warn: #f5a623;
    --warn-soft: rgba(245, 166, 35, 0.14);
    --err: #f87171;
    --err-soft: rgba(248, 113, 113, 0.14);
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-mono: ui-monospace, "SF Mono", "Cascadia Code", "Roboto Mono", Menlo, Consolas, monospace;
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html { -webkit-text-size-adjust: 100%; }
body {
    margin: 0;
    font-family: var(--font-sans);
    background: var(--bg) url('/static/img/globe-bg.svg') no-repeat top right / min(900px, 80vw);
    background-attachment: fixed;
    color: var(--text);
    -webkit-font-smoothing: antialiased;
}
header {
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    padding: calc(16px + env(safe-area-inset-top)) 32px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); }
.brand-mark { flex-shrink: 0; }
.brand-word {
    font-family: var(--font-mono); font-size: 1.05rem; font-weight: 600;
    letter-spacing: -0.01em; color: var(--text);
}
.brand-cursor { color: var(--accent); animation: cursor-pulse 1.6s ease-in-out infinite; }
@media (prefers-reduced-motion: reduce) { .brand-cursor { animation: none; } }
@keyframes cursor-pulse { 0%, 45% { opacity: 1; } 50%, 95% { opacity: 0.15; } 100% { opacity: 1; } }
.brand-sub {
    font-size: 0.72rem; color: var(--text-faint); letter-spacing: 0.06em; text-transform: uppercase;
    padding-left: 10px; margin-left: 2px; border-left: 1px solid var(--border-strong);
    display: none;
}
@media (min-width: 480px) { .brand-sub { display: inline; } }
header nav { display: flex; align-items: center; gap: 18px; }
header nav a { color: var(--text-muted); text-decoration: none; font-size: 0.9rem; }
header nav a:hover { color: var(--text); }
header nav form { display: inline; }
.nav-links {
    display: flex; align-items: center; gap: 18px;
    padding-left: 18px; border-left: 1px solid var(--border-strong);
}
.lang-toggle {
    display: inline-flex; align-items: center; gap: 1px;
    background: var(--bg-elevated-2); border: 1px solid var(--border-strong);
    border-radius: 999px; padding: 3px;
}
.lang-toggle a {
    margin-left: 0; color: var(--text-faint); font-size: 0.68rem; font-weight: 600;
    font-family: var(--font-mono); letter-spacing: 0.02em;
    padding: 3px 7px; border-radius: 999px; line-height: 1.4;
}
.lang-toggle a:hover { color: var(--text); }
.lang-toggle a.active { background: var(--accent); color: var(--accent-ink); }
header nav .btn-logout {
    background: none; color: var(--text-muted); padding: 0; margin: 0; font-size: 0.9rem;
    border: none; cursor: pointer; font-family: inherit;
}
header nav .btn-logout:hover { color: var(--text); }
main { max-width: 720px; margin: 40px auto; padding: 0 20px; }
.card p { text-align: justify; }
main a:not(.btn):not(.btn-secondary) { color: var(--accent); text-decoration: none; }
main a:not(.btn):not(.btn-secondary):hover { text-decoration: underline; }
.card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 32px;
    margin-bottom: 20px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}
h1 { font-size: 1.4rem; margin-top: 0; font-weight: 600; letter-spacing: -0.01em; }
label { display: block; font-size: 0.85rem; color: var(--text-muted); margin-bottom: 6px; margin-top: 14px; }
.checkbox-row { display: flex; align-items: center; gap: 8px; margin-top: 14px; }
.checkbox-row input[type=checkbox] { width: auto; accent-color: var(--accent); }
input[type=text], input[type=email] {
    width: 100%; padding: 12px; border: 1px solid var(--border-strong); border-radius: 6px;
    font-size: 16px; /* nunca menos de 16px: Safari en iOS hace zoom automatico al enfocar si el input es mas chico */
    -webkit-appearance: none; appearance: none;
    background: var(--bg-elevated-2); color: var(--text);
}
input[type=text]:focus, input[type=email]:focus {
    outline: none; border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}
button, .btn {
    background: var(--accent); color: var(--accent-ink); border: none; padding: 12px 18px;
    min-height: 44px; /* tamano minimo de tap target recomendado por Apple HIG */
    border-radius: 6px; font-size: 0.95rem; font-weight: 600; cursor: pointer; margin-top: 16px; text-decoration: none;
    display: inline-flex; align-items: center; justify-content: center;
    -webkit-appearance: none; appearance: none;
    transition: background-color 0.15s ease;
}
button:hover, .btn:hover { background: var(--accent-strong); }
.btn-secondary {
    background: var(--bg-elevated-2); color: var(--text); border: 1px solid var(--border-strong);
}
.btn-secondary:hover { background: var(--bg-elevated); border-color: var(--accent); }
.muted { color: var(--text-muted); font-size: 0.85rem; }
.error { color: var(--err); font-size: 0.9rem; }
.status-pill {
    display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 0.75rem; font-weight: 600;
    font-family: var(--font-mono);
}
.status-verified { background: var(--accent-soft); color: var(--accent); }
.status-pending { background: var(--warn-soft); color: var(--warn); }
.status-expired, .status-failed, .status-revoked { background: var(--err-soft); color: var(--err); }
code {
    background: var(--bg-elevated-2); color: var(--accent); padding: 2px 6px; border-radius: 4px;
    word-break: break-all; font-family: var(--font-mono); font-size: 0.9em;
}
footer {
    text-align: center; padding: 30px; color: var(--text-faint); font-size: 0.8rem;
    padding-bottom: calc(30px + env(safe-area-inset-bottom));
}
footer p { margin: 0 0 8px; }
footer p:last-child { margin-bottom: 0; opacity: 0.75; }

@media (max-width: 640px) {
    header { padding: 14px 16px; flex-wrap: wrap; gap: 10px; }
    header nav { width: 100%; flex-wrap: wrap; justify-content: flex-start; row-gap: 10px; column-gap: 16px; }
    header nav a { margin-left: 0; margin-right: 0; }
    .nav-links { border-left: none; padding-left: 0; }
    main { margin: 20px auto; padding: 0 14px; }
    .card { padding: 20px; }
    button, .btn { width: 100%; text-align: center; }
    h1 { font-size: 1.2rem; }
}