/* ─── Light mode ─────────────────────────────────────────────────────────────── */
/* One set of rules covers both cases — no separate "forced light" block needed:   */
/*   :root              (0,1,0) — when the system has no dark preference           */
/*   :root[data-theme="light"] (0,2,0) — when light is explicitly set             */
/* The higher specificity of the second selector means forced light always wins    */
/* over the @media dark block (whose selectors also reach at most 0,2,0 but       */
/* appear earlier in the file and exclude [data-theme="light"] via :not anyway).  */
:root,
:root[data-theme="light"] {
    --page-bg: #fafaf8;
    --text-color: #1a1400;
    --subtitle-color: #6b5c30;
    --card-bg: #ffffff;
    --card-border: #e8e0d0;
    --border-color: #ddd5c0;
    --header-bg: linear-gradient(135deg, #f8f5ed 0%, #f0ead8 100%);
    --verse-color: #2a1e00;
    --footer-color: #9a8050;
    --source-color: #c0a060;
}

/* Morning accent — light */
:root[data-period="morning"],
:root[data-theme="light"][data-period="morning"] {
    --accent: #b8860b;
    --ref-color: #8a6914;
}

/* Evening accent — light */
:root[data-period="evening"],
:root[data-theme="light"][data-period="evening"] {
    --accent: #6b5db5;
    --ref-color: #574aa0;
}

/* ─── Dark mode ──────────────────────────────────────────────────────────────── */
/* Two sets of rules cover both dark cases — keep their values identical so there */
/* is no styling difference between system dark and forced dark:                   */
/*   @media block (0,2,0 with :not) — fires when the system prefers dark.         */
/*     :not([data-theme="light"]) ensures it is skipped when light is explicitly  */
/*     set; the :root[data-theme="light"] rules above (0,2,0, later cascade) also */
/*     win by specificity, but :not makes the intent explicit.                    */
/*   :root[data-theme="dark"] (0,2,0, later in file) — fires when dark is        */
/*     explicitly set on a system that does not prefer dark.                      */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --page-bg: #111118;
        --text-color: #e0e0f0;
        --subtitle-color: #8888b0;
        --card-bg: #1c1c28;
        --card-border: #2e2e42;
        --border-color: #252535;
        --header-bg: linear-gradient(135deg, #181824 0%, #161620 100%);
        --verse-color: #d0d0f0;
        --footer-color: #505080;
        --source-color: #707090;
    }

    :root:not([data-theme="light"])[data-period="morning"] {
        --accent: #d4a820;
        --ref-color: #c09030;
    }

    :root:not([data-theme="light"])[data-period="evening"] {
        --accent: #9b8fd4;
        --ref-color: #b0a0e0;
    }
}

:root[data-theme="dark"] {
    --page-bg: #111118;
    --text-color: #e0e0f0;
    --subtitle-color: #8888b0;
    --card-bg: #1c1c28;
    --card-border: #2e2e42;
    --border-color: #252535;
    --header-bg: linear-gradient(135deg, #181824 0%, #161620 100%);
    --verse-color: #d0d0f0;
    --footer-color: #505080;
    --source-color: #707090;
}

:root[data-theme="dark"][data-period="morning"] {
    --accent: #d4a820;
    --ref-color: #c09030;
}

:root[data-theme="dark"][data-period="evening"] {
    --accent: #9b8fd4;
    --ref-color: #b0a0e0;
}

/* ─── Layout & Components ─────────────────────────────────────────────────── */

.page-header {
    background: var(--header-bg);
    border-bottom: 2px solid var(--border-color);
    padding: 2.5rem 1.5rem 2rem;
    text-align: center;
}

.period-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 0.75rem;
}

.page-header h1 {
    font-size: clamp(1.4rem, 4vw, 2rem);
    font-weight: normal;
    font-style: italic;
    color: var(--text-color);
    margin-bottom: 0.25rem;
    line-height: 1.3;
}

.page-header .date {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 0.9rem;
    color: var(--subtitle-color);
}

.reading-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 2rem 2rem 2.5rem;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.verse-group {
    margin-bottom: 1.6rem;
}

.verse-group:last-child {
    margin-bottom: 0;
}

.verse-ref {
    display: block;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ref-color);
    margin-bottom: 0.4rem;
}

.verse-text {
    color: var(--verse-color);
    font-size: 1.05rem;
    line-height: 1.85;
}

.verse-text sup {
    font-size: 0.65em;
    color: var(--ref-color);
    margin-right: 0.15em;
    vertical-align: super;
    line-height: 0;
}

.controls {
    display: flex;
    justify-content: center;
    gap: 0.6rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}


.toggle-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 1.1rem;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--accent);
    border: 1.5px solid var(--border-color);
    border-radius: 999px;
    transition: background-color 0.15s ease, border-color 0.15s ease;
}

.toggle-btn:hover {
    background-color: var(--card-border);
    border-color: var(--accent);
}

footer {
    text-align: center;
    padding: 2rem 1.5rem;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 0.78rem;
    color: var(--footer-color);
    border-top: 1px solid var(--border-color);
}

footer a {
    color: var(--source-color);
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

@media (max-width: 480px) {
    .page-header {
        padding: 1.75rem 1rem 1.5rem;
    }

    .reading-card {
        padding: 1.25rem 1.25rem 1.75rem;
    }
}