/* shared.css — Common utilities for all dark-theme pages.
   Page-specific styles remain in each HTML file's <style> block. */

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

/* ── Shared variables ─────────────────────────────────────────────────── */
:root {
    --accent:        #059669;
    --text-secondary:#94a3b8;
    --text-muted:    #64748b;
    --border:        #1e293b;
    --border-accent: rgba(5, 150, 105, 0.25);
}

/* ── Accessibility utilities ──────────────────────────────────────────── */

/* Visually hidden but available to screen readers */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Skip-to-content link — visible only on focus */
.skip-link {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: #fff;
    padding: 0.75rem 1.5rem;
    border-radius: 0 0 8px 8px;
    font-weight: 600;
    text-decoration: none;
    z-index: 10000;
    transition: top 0.2s;
}
.skip-link:focus {
    top: 0;
}

/* ── Form validation states ───────────────────────────────────────────── */
.input-valid {
    border-color: var(--accent) !important;
    box-shadow: 0 0 0 2px rgba(5, 150, 105, 0.2) !important;
}
.input-error {
    border-color: #ef4444 !important;
    box-shadow: 0 0 0 2px rgba(239, 68, 68, 0.2) !important;
}
.field-error {
    color: #ef4444;
    font-size: 0.8rem;
    margin-top: 0.25rem;
    display: none;
}
.field-error.visible {
    display: block;
}