/* Lessons section header — accent color on the label */
.lessons-section .subtitle-name {
    color: var(--accent-color);
}

/* Each card in the lessons grid gets a subtle accent top line */
.lessons-grid .card {
    border-top: 1px solid color-mix(in srgb, var(--accent-color) 35%, transparent);
    padding-top: max(10px, calc(0.69vw * var(--scale)));
}

/* Tag label inside lesson cards — accent color */
.lessons-grid .card-top-inner,
.lessons-grid .card-top-inner a {
    color: var(--accent-color);
    opacity: 1;
}

/* Bracket wrappers inherit accent */
html[data-cta-style="Square Bracket"] .lessons-grid .card-top-inner::before,
html[data-cta-style="Mixed"] .lessons-grid .card-top-inner::before,
html[data-cta-style="Square Bracket"] .lessons-grid .card-top-inner::after,
html[data-cta-style="Mixed"] .lessons-grid .card-top-inner::after {
    color: var(--accent-color);
}

/* Lock icon — accent color for paid lessons */
.lessons-grid .restricted-access-icon svg path {
    fill: var(--accent-color);
}

/* Slightly warmer card overlay — subtle accent tint at bottom */
.lessons-grid .card-overlay {
    background: linear-gradient(
        to top,
        color-mix(in srgb, var(--accent-color) 18%, transparent) 0%,
        transparent 45%
    );
}

/* ═══════════════════════════════════════════════
   FROG BOOK — Lesson Reading Experience
   ═══════════════════════════════════════════════ */

/* ─── Top Context Bar ───────────────────────── */

.fb-lesson-bar {
    display: flex;
    align-items: center;
    gap: max(16px, calc(1.11vw * var(--scale)));
    padding: max(13px, calc(0.9vw * var(--scale))) max(24px, calc(1.67vw * var(--scale)));
    border-top: 1px solid color-mix(in srgb, var(--text-color) 9%, transparent);
    border-bottom: 1px solid color-mix(in srgb, var(--text-color) 9%, transparent);
    background: var(--background-color);
    position: sticky;
    /* stick just below the fixed navbar */
    top: max(80px, calc(5.55vw * var(--scale)));
    z-index: 50;
}

.fb-lesson-back {
    display: flex;
    align-items: center;
    gap: 7px;
    font-family: var(--font2);
    font-size: max(11px, calc(0.76vw * var(--scale)));
    letter-spacing: 0.1em;
    text-transform: uppercase;
    opacity: 0.45;
    text-decoration: none;
    transition: opacity 0.2s ease;
    white-space: nowrap;
    flex-shrink: 0;
    color: inherit;
}

.fb-lesson-back:hover { opacity: 0.8; }

.fb-lesson-progress-track {
    flex: 1;
    height: 2px;
    background: color-mix(in srgb, var(--text-color) 10%, transparent);
    border-radius: 2px;
    overflow: hidden;
    min-width: 40px;
}

.fb-lesson-progress-fill {
    height: 100%;
    background: var(--accent-color);
    border-radius: 2px;
    width: 0%;
    transition: width 0.6s ease;
}

.fb-lesson-position {
    font-family: var(--font2);
    font-size: max(11px, calc(0.76vw * var(--scale)));
    letter-spacing: 0.08em;
    opacity: 0.35;
    white-space: nowrap;
    flex-shrink: 0;
}

.fb-lesson-bar-prev {
    display: flex;
    align-items: center;
    gap: 6px;
    text-decoration: none;
    color: inherit;
    flex-shrink: 0;
    opacity: 0.45;
    transition: opacity 0.2s ease;
    max-width: min(28ch, 38vw);
    overflow: hidden;
}

.fb-lesson-bar-prev:hover { opacity: 0.9; }

.fb-lesson-bar-prev-title {
    font-family: var(--font2);
    font-size: max(11px, calc(0.76vw * var(--scale)));
    letter-spacing: 0.06em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    text-transform: uppercase;
}

.fb-lesson-bar-prev svg {
    flex-shrink: 0;
    color: var(--accent-color);
}

.fb-lesson-bar-all {
    font-family: var(--font2);
    font-size: max(11px, calc(0.76vw * var(--scale)));
    letter-spacing: 0.12em;
    text-transform: uppercase;
    opacity: 0.4;
    text-decoration: none;
    color: inherit;
    flex-shrink: 0;
    white-space: nowrap;
    transition: opacity 0.2s ease;
    padding: 3px 8px;
    border: 1px solid color-mix(in srgb, var(--text-color) 16%, transparent);
}

.fb-lesson-bar-all:hover { opacity: 0.75; }

.fb-lesson-bar-next {
    display: flex;
    align-items: center;
    gap: 6px;
    text-decoration: none;
    color: inherit;
    flex-shrink: 0;
    opacity: 0.45;
    transition: opacity 0.2s ease;
    max-width: min(28ch, 38vw);
    overflow: hidden;
}

.fb-lesson-bar-next:hover { opacity: 0.9; }

.fb-lesson-bar-next-title {
    font-family: var(--font2);
    font-size: max(11px, calc(0.76vw * var(--scale)));
    letter-spacing: 0.06em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    text-transform: uppercase;
}

.fb-lesson-bar-next svg {
    flex-shrink: 0;
    color: var(--accent-color);
}

/* ─── Lesson Header ─────────────────────────── */

.fb-lesson-header {
    padding-top: max(64px, calc(4.44vw * var(--scale)));
    padding-bottom: max(48px, calc(3.33vw * var(--scale)));
}

.fb-lesson-header-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: max(10px, calc(0.69vw * var(--scale)));
    width: 100%;
    padding-left: var(--small-padding);
    padding-right: var(--small-padding);
    box-sizing: border-box;
}

.fb-lesson-meta {
    margin-bottom: max(12px, calc(0.83vw * var(--scale)));
}

/* bracket tag — matches the theme's [ TAG ] style */
.fb-lesson-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0;
    font-family: var(--font2);
    font-size: max(16px, calc(1.11vw * var(--scale)));
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent-color);
}

.fb-lesson-eyebrow::before { content: "[ "; }
.fb-lesson-eyebrow::after  { content: " ]"; }

.fb-lesson-num {
    font-size: inherit;
    letter-spacing: inherit;
}

.fb-lesson-denom {
    opacity: 0.5;
    font-size: inherit;
}

.fb-lesson-title {
    font-family: var(--font1);
    font-size: max(52px, calc(3.61vw * var(--scale)));
    font-weight: 400;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin: 0;
    color: inherit;
    overflow-wrap: break-word;
    word-break: break-word;
}

.fb-lesson-excerpt {
    font-family: var(--font2);
    font-size: max(14px, calc(0.97vw * var(--scale)));
    line-height: 1.65;
    opacity: 0.55;
    margin: max(4px, 0.28vw) 0 0;
    max-width: 52ch;
}

/* Feature image — full-width banner below header text */
.fb-lesson-image-wrap {
    margin-top: max(36px, calc(2.5vw * var(--scale)));
    width: 100%;
    max-height: clamp(260px, 36vw, 540px);
    overflow: hidden;
    border-radius: max(6px, calc(0.42vw * var(--scale)));
}

.fb-lesson-image-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
}

/* ─── Lesson Footer Nav ─────────────────────── */

.fb-lesson-footer {
    margin-top: max(16px, calc(1.11vw * var(--scale)));
}

.fb-lesson-footer-border {
    width: 100%;
    overflow: hidden;
}

.fb-lesson-nav {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: stretch;
    padding: 0;
}

.fb-lesson-nav-item {
    display: flex;
    align-items: center;
    gap: max(14px, calc(0.97vw * var(--scale)));
    text-decoration: none;
    color: inherit;
    padding: max(28px, calc(1.94vw * var(--scale))) max(20px, calc(1.39vw * var(--scale)));
    transition: opacity 0.2s ease;
    min-width: 0;
}

.fb-lesson-nav-item:hover { opacity: 0.65; }

.fb-lesson-nav-prev {
    justify-self: start;
    flex-direction: row;
    padding-left: 0;
}

.fb-lesson-nav-next {
    justify-self: end;
    flex-direction: row;
    padding-right: 0;
}

.fb-lesson-nav-prev svg,
.fb-lesson-nav-next svg {
    flex-shrink: 0;
    color: var(--accent-color);
    opacity: 0.55;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.fb-lesson-nav-item:hover .fb-lesson-nav-prev svg,
.fb-lesson-nav-prev:hover svg {
    opacity: 1;
    transform: translateX(-3px);
}

.fb-lesson-nav-item:hover .fb-lesson-nav-next svg,
.fb-lesson-nav-next:hover svg {
    opacity: 1;
    transform: translateX(3px);
}

.fb-lesson-nav-text {
    display: flex;
    flex-direction: column;
    gap: 5px;
    min-width: 0;
    overflow: hidden;
}

.fb-lesson-nav-prev .fb-lesson-nav-text { align-items: flex-start; }
.fb-lesson-nav-next .fb-lesson-nav-text { align-items: flex-end; }

.fb-lesson-nav-label {
    font-family: var(--font2);
    font-size: max(10px, calc(0.69vw * var(--scale)));
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent-color);
    opacity: 0.6;
    line-height: 1;
    transition: opacity 0.2s ease;
}

.fb-lesson-nav-item:hover .fb-lesson-nav-label { opacity: 1; }

.fb-lesson-nav-title {
    font-family: var(--font1);
    font-size: max(14px, calc(0.97vw * var(--scale)));
    line-height: 1.25;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 26ch;
    opacity: 0.7;
    transition: opacity 0.2s ease;
}

.fb-lesson-nav-item:hover .fb-lesson-nav-title { opacity: 1; }

.fb-lesson-nav-home {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 7px;
    text-decoration: none;
    color: inherit;
    opacity: 0.3;
    transition: opacity 0.2s ease, background 0.2s ease;
    padding: max(28px, calc(1.94vw * var(--scale))) max(20px, calc(1.39vw * var(--scale)));
    flex-shrink: 0;
    border-left: 1px solid color-mix(in srgb, var(--text-color) 9%, transparent);
    border-right: 1px solid color-mix(in srgb, var(--text-color) 9%, transparent);
}

.fb-lesson-nav-home:hover { opacity: 0.75; }

.fb-lesson-nav-home span {
    font-family: var(--font2);
    font-size: max(10px, calc(0.69vw * var(--scale)));
    letter-spacing: 0.12em;
    text-transform: uppercase;
    white-space: nowrap;
}

/* Disabled state (first/last lesson) */
.fb-nav-disabled {
    opacity: 0.15 !important;
    pointer-events: none;
}

/* ─── Eliminate gap between hero bottom and progress bar ─── */

.fb-lesson .hero {
    padding-bottom: 0 !important;
    margin-bottom: 0 !important;
    overflow: hidden;
}

.fb-lesson .post-hero-content {
    display: block !important;
    padding: 0 !important;
    margin: 0 !important;
}

.fb-lesson .section-padding-top {
    padding-bottom: 0 !important;
}

.fb-lesson .excerpt-and-authors,
.fb-lesson .default-post-authors,
.fb-lesson .post-authors {
    margin-bottom: 0 !important;
}

.fb-lesson .post-main-image-wrapper {
    margin-bottom: 0 !important;
}

.fb-lesson .post-main-image-wrapper figure {
    display: block;
    margin: 0;
    padding: 0;
    line-height: 0;
    font-size: 0;
}

.fb-lesson .post-main-image-wrapper img {
    display: block;
    width: 100%;
    height: auto;
    vertical-align: bottom;
}

.fb-lesson .date-and-reading-time {
    margin-bottom: 0;
    padding-bottom: 0;
}

/* ─── Mobile ────────────────────────────────── */

@media (max-width: 767px) {
    .fb-lesson-bar {
        padding: 8px max(16px, 4vw);
        gap: 12px;
    }

    .fb-lesson-position { display: none; }
    .fb-lesson-bar-prev-title,
    .fb-lesson-bar-next-title { display: none; }

    .fb-lesson-header {
        padding-top: max(36px, 6vw);
        padding-bottom: max(32px, 5vw);
    }

    .fb-lesson-title {
        font-size: max(26px, 6.5vw);
        overflow-wrap: break-word;
        word-break: break-word;
    }

    .fb-lesson-nav {
        grid-template-columns: 1fr auto 1fr;
        gap: 8px;
        padding: max(20px, 5vw) 0;
    }

    .fb-lesson-nav-title {
        max-width: 16ch;
    }
}

@media (max-width: 479px) {
    .fb-lesson-bar {
        top: 70px;
    }

    .fb-lesson-nav-home span { display: none; }

    .fb-lesson-nav-title {
        max-width: 12ch;
        font-size: 12px;
    }

    .fb-lesson-nav-label { display: none; }
}