/* =========================================================
   UNIT CIRCLE GUIDE
   Shared design system and foundational components
   ========================================================= */

:root {
    --uc-navy: #0f172a;
    --uc-slate: #475569;
    --uc-muted: #64748b;
    --uc-border: #dbe4ee;
    --uc-border-strong: #cbd5e1;
    --uc-surface: #ffffff;
    --uc-surface-soft: #f8fafc;
    --uc-surface-blue: #eff6ff;
    --uc-surface-teal: #ecfdfb;
    --uc-surface-gold: #fffbeb;
    --uc-teal: #0f766e;
    --uc-teal-dark: #115e59;
    --uc-teal-light: #14b8a6;
    --uc-blue: #2563eb;
    --uc-gold: #d97706;
    --uc-red: #b91c1c;
    --uc-green: #15803d;
    --uc-radius: 1.1rem;
    --uc-radius-small: 0.8rem;
    --uc-shadow:
        0 16px 35px rgba(15, 23, 42, 0.08);
    --uc-shadow-small:
        0 8px 22px rgba(15, 23, 42, 0.06);
}


/* =========================================================
   GENERAL GUIDE TYPOGRAPHY
   ========================================================= */

.uc-content-section {
    scroll-margin-top: 6rem;
}

.uc-content-section > h2,
.uc-practice-options > h2,
.uc-related-section > h2 {
    color: var(--uc-navy);
    font-weight: 800;
    letter-spacing: -0.025em;
}

.uc-content-section > p,
.uc-practice-options > p,
.uc-related-section > p {
    color: var(--uc-slate);
    line-height: 1.75;
}

.uc-section-eyebrow,
.uc-card-eyebrow,
.uc-example-label,
.uc-visual-eyebrow,
.uc-practice-eyebrow,
.uc-conversion-eyebrow,
.uc-formula-label,
.uc-key-idea-label {
    color: var(--uc-teal);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.09em;
    line-height: 1.35;
    text-transform: uppercase;
}

.uc-section-eyebrow,
.uc-card-eyebrow,
.uc-example-label,
.uc-practice-eyebrow,
.uc-conversion-eyebrow,
.uc-key-idea-label {
    margin-bottom: 0.65rem;
}

.uc-content-section h3,
.uc-practice-options h3,
.uc-related-section h3,
.uc-summary-card h3 {
    color: var(--uc-navy);
    font-weight: 750;
}

.uc-content-section p,
.uc-content-section li,
.uc-practice-options p,
.uc-practice-options li,
.uc-related-section p,
.uc-summary-card p {
    line-height: 1.7;
}


/* =========================================================
   GUIDE INTRODUCTION
   ========================================================= */

.uc-guide-intro {
    scroll-margin-top: 6rem;
}

.uc-guide-intro > .lead {
    color: var(--uc-navy);
    font-size: clamp(1.1rem, 1.8vw, 1.3rem);
    font-weight: 500;
    line-height: 1.75;
}

.uc-guide-intro > p:not(.lead) {
    color: var(--uc-slate);
    line-height: 1.75;
}


/* =========================================================
   TABLE OF CONTENTS
   ========================================================= */

.uc-toc {
    background:
        linear-gradient(
            135deg,
            rgba(240, 253, 250, 0.95),
            rgba(248, 250, 252, 0.98)
        );
    border: 1px solid #bfe9e2;
    border-left: 5px solid var(--uc-teal);
    border-radius: var(--uc-radius);
    box-shadow: var(--uc-shadow-small);
    padding: 1.6rem 1.75rem;
}

.uc-toc h2 {
    color: var(--uc-navy);
    font-weight: 800;
}

.uc-toc ul {
    display: grid;
    gap: 0.7rem 2rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    list-style: none;
    margin: 0;
    padding: 0;
}

.uc-toc li {
    margin: 0;
}

.uc-toc a {
    align-items: flex-start;
    color: var(--uc-teal-dark);
    display: inline-flex;
    font-weight: 700;
    gap: 0.65rem;
    line-height: 1.45;
    text-decoration: none;
    transition:
        color 160ms ease,
        transform 160ms ease;
}

.uc-toc a::before {
    color: var(--uc-teal);
    content: "→";
    flex: 0 0 auto;
    font-weight: 800;
}

.uc-toc a:hover,
.uc-toc a:focus {
    color: var(--uc-blue);
    transform: translateX(2px);
}


/* =========================================================
   KEY IDEA AND FORMULA CARDS
   ========================================================= */

.uc-key-idea {
    background: var(--uc-surface-teal);
    border: 1px solid #a7e4da;
    border-left: 5px solid var(--uc-teal);
    border-radius: var(--uc-radius-small);
    color: var(--uc-teal-dark);
    padding: 1.25rem 1.4rem;
}

.uc-key-idea p:last-child {
    color: #285e59;
    line-height: 1.7;
}

.uc-formula-label {
    color: var(--uc-teal);
}

.uc-content-section .card {
    border-radius: var(--uc-radius);
    overflow: hidden;
}

.uc-content-section .card-body {
    background:
        linear-gradient(
            135deg,
            var(--uc-surface-soft),
            var(--uc-surface-blue)
        );
}

.uc-content-section .fs-4,
.uc-content-section .fs-5 {
    color: var(--uc-navy);
    font-weight: 700;
}

.uc-mini-formula {
    align-items: center;
    background: rgba(240, 253, 250, 0.88);
    border: 1px solid #c7ebe5;
    border-radius: 0.7rem;
    color: var(--uc-teal-dark);
    display: flex;
    justify-content: center;
    margin-top: 1rem;
    min-height: 4rem;
    overflow-x: auto;
    padding: 0.65rem 0.85rem;
    text-align: center;
}


/* =========================================================
   MATHJAX SPACING
   ========================================================= */

.uc-content-section mjx-container[display="true"],
.uc-summary-card mjx-container[display="true"],
.uc-practice-options mjx-container[display="true"] {
    margin: 0.75rem 0 !important;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 0.1rem 0;
}

.uc-worked-math mjx-container[display="true"],
.uc-answer-box mjx-container[display="true"],
.uc-mini-formula mjx-container[display="true"] {
    margin: 0.45rem 0 !important;
}


/* =========================================================
   GRAPH AND VISUAL CARDS
   ========================================================= */

.uc-visual-card {
    background: var(--uc-surface);
    border: 1px solid var(--uc-border);
    border-radius: var(--uc-radius);
    box-shadow: var(--uc-shadow);
    overflow: hidden;
}

.uc-visual-heading {
    align-items: center;
    background:
        linear-gradient(
            135deg,
            #f0fdfa,
            #eff6ff
        );
    border-bottom: 1px solid var(--uc-border);
    display: flex;
    gap: 1rem;
    justify-content: space-between;
    padding: 1.25rem 1.4rem;
}

.uc-visual-heading h3 {
    margin-bottom: 0;
}

.uc-visual-note {
    background: var(--uc-surface);
    border: 1px solid #bfe9e2;
    border-radius: 999px;
    color: var(--uc-teal-dark);
    flex: 0 0 auto;
    font-size: 0.88rem;
    font-weight: 700;
    padding: 0.45rem 0.8rem;
}

.uc-graph {
    background: #ffffff;
    height: clamp(320px, 52vw, 500px);
    margin: 0 auto;
    max-width: 760px;
    position: relative;
    width: 100%;
}

.uc-graph-large {
    height: clamp(390px, 58vw, 580px);
    max-width: 860px;
}

.uc-graph-complete {
    height: clamp(520px, 72vw, 780px);
    max-width: 1050px;
}

.uc-visual-caption {
    background: var(--uc-surface-soft);
    border-top: 1px solid var(--uc-border);
    color: var(--uc-slate);
    font-size: 0.93rem;
    line-height: 1.65;
    padding: 1rem 1.4rem;
    text-align: center;
}


/* JSXGraph containment */

.uc-graph.jxgbox {
    border: 0;
    border-radius: 0;
}

.uc-graph svg {
    display: block;
}

.uc-graph .JXGtext {
    color: var(--uc-navy);
    font-family: "Inter", sans-serif !important;
}


/* =========================================================
   GENERIC INFORMATION GRIDS
   ========================================================= */

.uc-definition-grid,
.uc-coordinate-grid,
.uc-conversion-grid,
.uc-special-triangle-grid,
.uc-example-grid,
.uc-tangent-grid {
    display: grid;
    gap: 1rem;
}

.uc-definition-grid,
.uc-coordinate-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.uc-conversion-grid,
.uc-special-triangle-grid,
.uc-example-grid,
.uc-tangent-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.uc-definition-card,
.uc-coordinate-card,
.uc-conversion-card,
.uc-special-triangle-card,
.uc-tangent-card {
    background: var(--uc-surface);
    border: 1px solid var(--uc-border);
    border-radius: var(--uc-radius-small);
    box-shadow: var(--uc-shadow-small);
    height: 100%;
    padding: 1.3rem;
}

.uc-definition-card p,
.uc-coordinate-card p,
.uc-conversion-card p,
.uc-special-triangle-card p,
.uc-tangent-card p {
    color: var(--uc-slate);
}

.uc-definition-icon {
    align-items: center;
    background: var(--uc-surface-teal);
    border-radius: 0.8rem;
    color: var(--uc-teal);
    display: inline-flex;
    font-size: 1.15rem;
    height: 2.7rem;
    justify-content: center;
    margin-bottom: 1rem;
    width: 2.7rem;
}

.uc-coordinate-symbol {
    align-items: center;
    background:
        linear-gradient(
            135deg,
            var(--uc-teal),
            var(--uc-blue)
        );
    border-radius: 50%;
    color: #ffffff !important;
    display: flex;
    font-size: 1.1rem;
    font-weight: 800;
    height: 3rem;
    justify-content: center;
    margin-bottom: 1rem;
    width: 3rem;
}


/* =========================================================
   WORKED EXAMPLES
   ========================================================= */

.uc-example-card {
    background: var(--uc-surface);
    border: 1px solid var(--uc-border);
    border-radius: var(--uc-radius);
    box-shadow: var(--uc-shadow-small);
    overflow: hidden;
    padding: 1.5rem;
}

.uc-example-card > p:not(.uc-example-label) {
    color: var(--uc-slate);
}

.uc-worked-math {
    background: var(--uc-surface-soft);
    border: 1px solid var(--uc-border);
    border-radius: var(--uc-radius-small);
    color: var(--uc-navy);
    margin: 1rem 0;
    overflow-x: auto;
    padding: 1rem 1.2rem;
}

.uc-answer-box {
    background: var(--uc-surface-teal);
    border: 1px solid #a7e4da;
    border-left: 4px solid var(--uc-teal);
    border-radius: var(--uc-radius-small);
    color: var(--uc-teal-dark);
    line-height: 1.65;
    margin-top: 1rem;
    padding: 1rem 1.15rem;
}

.uc-answer-box strong {
    color: var(--uc-teal-dark);
}


/* =========================================================
   WARNING CARDS
   ========================================================= */

.uc-warning-card {
    align-items: flex-start;
    background: var(--uc-surface-gold);
    border: 1px solid #f4d38a;
    border-left: 5px solid var(--uc-gold);
    border-radius: var(--uc-radius-small);
    display: flex;
    gap: 1rem;
    padding: 1.25rem 1.35rem;
}

.uc-warning-icon {
    align-items: center;
    background: #fef3c7;
    border-radius: 50%;
    color: var(--uc-gold);
    display: flex;
    flex: 0 0 auto;
    font-size: 1rem;
    height: 2.5rem;
    justify-content: center;
    width: 2.5rem;
}

.uc-warning-card h3 {
    color: #78350f;
    margin-bottom: 0.45rem;
}

.uc-warning-card p {
    color: #854d0e;
}


/* =========================================================
   EQUIVALENCE CARD
   ========================================================= */

.uc-equivalence-card {
    background:
        linear-gradient(
            135deg,
            var(--uc-surface-blue),
            var(--uc-surface-teal)
        );
    border: 1px solid #c7dcef;
    border-radius: var(--uc-radius);
    box-shadow: var(--uc-shadow-small);
    padding: 1.5rem;
    text-align: center;
}

.uc-equivalence-divider {
    background: var(--uc-border-strong);
    height: 1px;
    margin: 0.65rem auto;
    max-width: 28rem;
    width: 80%;
}


/* =========================================================
   REFERENCE TABLES
   ========================================================= */

.uc-angle-table-wrap {
    background: var(--uc-surface);
    border: 1px solid var(--uc-border);
    border-radius: var(--uc-radius);
    box-shadow: var(--uc-shadow-small);
    overflow: hidden;
    padding: 1.35rem;
}

.uc-angle-table-wrap > h3,
.uc-angle-table-wrap > .h5 {
    color: var(--uc-navy);
}

.uc-angle-table {
    color: var(--uc-navy);
    min-width: 620px;
    vertical-align: middle;
}

.uc-angle-table thead th {
    background: var(--uc-navy);
    border-color: var(--uc-navy);
    color: #ffffff;
    font-size: 0.82rem;
    font-weight: 800;
    letter-spacing: 0.035em;
    padding: 0.9rem 0.8rem;
    text-align: center;
}

.uc-angle-table tbody td {
    border-color: var(--uc-border);
    padding: 0.85rem 0.8rem;
    text-align: center;
}

.uc-angle-table tbody tr:nth-child(even) td {
    background: var(--uc-surface-soft);
}

.uc-angle-table tbody tr:hover td {
    background: var(--uc-surface-teal);
}

.uc-complete-table {
    min-width: 720px;
}

/* =========================================================
   SPECIAL-ANGLE AND PATTERN CARDS
   ========================================================= */

.uc-pattern-card,
.uc-memory-card,
.uc-process-card,
.uc-sign-summary {
    background: var(--uc-surface);
    border: 1px solid var(--uc-border);
    border-radius: var(--uc-radius);
    box-shadow: var(--uc-shadow-small);
    padding: 1.4rem;
}

.uc-pattern-card > p:not(.uc-card-eyebrow),
.uc-memory-card > p:not(.uc-card-eyebrow),
.uc-process-card li {
    color: var(--uc-slate);
}

.uc-pattern-card .uc-worked-math {
    background:
        linear-gradient(
            135deg,
            var(--uc-surface-teal),
            var(--uc-surface-blue)
        );
    border-color: #bfe1df;
    text-align: center;
}


/* =========================================================
   QUADRANT CARDS
   ========================================================= */

.uc-quadrant-grid,
.uc-reference-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.uc-quadrant-card,
.uc-reference-card {
    background: var(--uc-surface);
    border: 1px solid var(--uc-border);
    border-radius: var(--uc-radius-small);
    box-shadow: var(--uc-shadow-small);
    height: 100%;
    padding: 1.3rem;
}

.uc-quadrant-card:nth-child(1) {
    border-top: 4px solid #16a34a;
}

.uc-quadrant-card:nth-child(2) {
    border-top: 4px solid #2563eb;
}

.uc-quadrant-card:nth-child(3) {
    border-top: 4px solid #7c3aed;
}

.uc-quadrant-card:nth-child(4) {
    border-top: 4px solid #d97706;
}

.uc-quadrant-number {
    color: var(--uc-teal);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
}

.uc-quadrant-card > p:last-child,
.uc-reference-card > p:last-child {
    color: var(--uc-slate);
}

.uc-sign-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    margin: 1rem 0;
}

.uc-sign-row span {
    background: var(--uc-surface-soft);
    border: 1px solid var(--uc-border);
    border-radius: 999px;
    color: var(--uc-navy);
    font-size: 0.88rem;
    font-weight: 700;
    padding: 0.4rem 0.65rem;
}


/* =========================================================
   QUADRANT MEMORY AID
   ========================================================= */

.uc-memory-sequence {
    display: grid;
    gap: 0.75rem;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    margin: 1.2rem 0;
}

.uc-memory-sequence span {
    align-items: center;
    background:
        linear-gradient(
            145deg,
            var(--uc-surface-teal),
            var(--uc-surface-blue)
        );
    border: 1px solid #c7e3e5;
    border-radius: var(--uc-radius-small);
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 6rem;
    padding: 0.9rem 0.6rem;
    text-align: center;
}

.uc-memory-sequence strong {
    color: var(--uc-teal-dark);
    font-size: 1rem;
}

.uc-memory-sequence small {
    color: var(--uc-muted);
    display: block;
    font-size: 0.75rem;
    margin-top: 0.35rem;
}


/* =========================================================
   REFERENCE ANGLES AND PROCESSES
   ========================================================= */

.uc-reference-card .uc-mini-formula {
    min-height: 4.5rem;
}

.uc-process-list {
    counter-reset: uc-process;
    display: grid;
    gap: 0.85rem;
    list-style: none;
    padding-left: 0;
}

.uc-process-list li {
    align-items: flex-start;
    counter-increment: uc-process;
    display: flex;
    gap: 0.8rem;
}

.uc-process-list li::before {
    align-items: center;
    background: var(--uc-teal);
    border-radius: 50%;
    color: #ffffff;
    content: counter(uc-process);
    display: inline-flex;
    flex: 0 0 auto;
    font-size: 0.78rem;
    font-weight: 800;
    height: 1.7rem;
    justify-content: center;
    margin-top: 0.1rem;
    width: 1.7rem;
}


/* =========================================================
   COMMON MISTAKES
   ========================================================= */

.uc-mistake-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.uc-mistake-card {
    background: var(--uc-surface);
    border: 1px solid var(--uc-border);
    border-radius: var(--uc-radius);
    box-shadow: var(--uc-shadow-small);
    padding: 1.35rem;
    position: relative;
}

.uc-mistake-number {
    align-items: center;
    background: #fee2e2;
    border-radius: 50%;
    color: var(--uc-red);
    display: flex;
    font-size: 0.85rem;
    font-weight: 800;
    height: 2.25rem;
    justify-content: center;
    margin-bottom: 1rem;
    width: 2.25rem;
}

.uc-mistake-card > p {
    color: var(--uc-slate);
}

.uc-correct-example {
    background: var(--uc-surface-teal);
    border-left: 4px solid var(--uc-teal);
    border-radius: 0.65rem;
    color: var(--uc-teal-dark);
    margin: 1rem 0;
    overflow-x: auto;
    padding: 0.75rem 0.9rem;
}

.uc-correct-example mjx-container[display="true"] {
    margin: 0.4rem 0 !important;
}

.uc-mistake-reminder {
    border-top: 1px solid var(--uc-border);
    font-size: 0.92rem;
    padding-top: 0.9rem;
}

.uc-mistake-reminder strong {
    color: var(--uc-navy);
}


/* =========================================================
   FINAL CHECK
   ========================================================= */

.uc-final-check {
    align-items: flex-start;
    background:
        linear-gradient(
            135deg,
            #f0fdf4,
            var(--uc-surface-teal)
        );
    border: 1px solid #a7dfbd;
    border-radius: var(--uc-radius);
    display: flex;
    gap: 1rem;
    padding: 1.4rem;
}

.uc-final-check-icon {
    align-items: center;
    background: var(--uc-green);
    border-radius: 50%;
    color: #ffffff;
    display: flex;
    flex: 0 0 auto;
    font-size: 1.1rem;
    height: 2.8rem;
    justify-content: center;
    width: 2.8rem;
}

.uc-final-check h3 {
    color: #14532d;
}

.uc-final-check ul {
    color: #285c3c;
    display: grid;
    gap: 0.45rem;
    padding-left: 1.2rem;
}


/* =========================================================
   PRACTICE OPTIONS
   ========================================================= */

.uc-practice-options {
    background:
        linear-gradient(
            145deg,
            #f8fafc,
            #f0fdfa
        );
    border: 1px solid var(--uc-border);
    border-radius: calc(var(--uc-radius) + 0.2rem);
    padding: clamp(1.4rem, 4vw, 2.25rem);
    scroll-margin-top: 6rem;
}

.uc-practice-grid {
    display: grid;
    gap: 1.25rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.uc-practice-card {
    background: var(--uc-surface);
    border: 1px solid var(--uc-border);
    border-radius: var(--uc-radius);
    box-shadow: var(--uc-shadow-small);
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 1.5rem;
    transition:
        border-color 180ms ease,
        box-shadow 180ms ease,
        transform 180ms ease;
}

.uc-practice-card:hover {
    border-color: #9fded4;
    box-shadow: var(--uc-shadow);
    transform: translateY(-3px);
}

.uc-practice-icon {
    align-items: center;
    background:
        linear-gradient(
            135deg,
            var(--uc-teal),
            var(--uc-blue)
        );
    border-radius: 0.85rem;
    color: #ffffff;
    display: flex;
    font-size: 1.15rem;
    height: 3rem;
    justify-content: center;
    margin-bottom: 1.1rem;
    width: 3rem;
}

.uc-practice-card > p:not(.uc-practice-eyebrow) {
    color: var(--uc-slate);
}

.uc-practice-features {
    color: var(--uc-slate);
    display: grid;
    gap: 0.45rem;
    margin-bottom: 1.35rem;
    padding-left: 1.2rem;
}

.uc-practice-card .btn {
    align-self: flex-start;
    margin-top: auto;
}

.btn-outline-teal {
    background-color: transparent;
    border-color: var(--uc-teal);
    color: var(--uc-teal);
}

.btn-outline-teal:hover,
.btn-outline-teal:focus {
    background-color: var(--uc-teal);
    border-color: var(--uc-teal);
    color: #ffffff;
}


/* =========================================================
   GUIDE SUMMARY
   ========================================================= */

.uc-summary-card {
    background: var(--uc-navy);
    border-radius: calc(var(--uc-radius) + 0.2rem);
    box-shadow: var(--uc-shadow);
    color: #ffffff;
    padding: clamp(1.5rem, 4vw, 2.35rem);
}

.uc-summary-card .uc-section-eyebrow {
    color: #5eead4;
}

.uc-summary-card > h2 {
    color: #ffffff;
}

.uc-summary-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.uc-summary-grid article {
    align-items: flex-start;
    background: rgba(255, 255, 255, 0.075);
    border: 1px solid rgba(255, 255, 255, 0.13);
    border-radius: var(--uc-radius-small);
    display: flex;
    gap: 0.85rem;
    padding: 1rem;
}

.uc-summary-grid p {
    color: #dbeafe;
}

.uc-summary-number {
    align-items: center;
    background: var(--uc-teal-light);
    border-radius: 50%;
    color: var(--uc-navy);
    display: flex;
    flex: 0 0 auto;
    font-size: 0.78rem;
    font-weight: 800;
    height: 1.8rem;
    justify-content: center;
    width: 1.8rem;
}


/* =========================================================
   RELATED RESOURCES
   ========================================================= */

.uc-related-section {
    scroll-margin-top: 6rem;
}

.uc-related-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.uc-related-card {
    background: var(--uc-surface);
    border: 1px solid var(--uc-border);
    border-radius: var(--uc-radius);
    box-shadow: var(--uc-shadow-small);
    color: inherit;
    display: block;
    height: 100%;
    padding: 1.35rem;
    text-decoration: none;
    transition:
        border-color 180ms ease,
        box-shadow 180ms ease,
        transform 180ms ease;
}

.uc-related-card:hover,
.uc-related-card:focus {
    border-color: var(--uc-teal-light);
    box-shadow: var(--uc-shadow);
    color: inherit;
    transform: translateY(-3px);
}

.uc-related-card h3 {
    font-size: 1.05rem;
    margin-bottom: 0.55rem;
    transition: color 180ms ease;
}

.uc-related-card:hover h3,
.uc-related-card:focus h3 {
    color: var(--uc-teal);
}

.uc-related-card p {
    color: var(--uc-slate);
    font-size: 0.94rem;
    margin-bottom: 0;
}


/* =========================================================
   ACCESSIBILITY
   ========================================================= */

.uc-toc a:focus-visible,
.uc-related-card:focus-visible,
.uc-practice-card .btn:focus-visible {
    outline: 3px solid rgba(37, 99, 235, 0.35);
    outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
    .uc-toc a,
    .uc-related-card,
    .uc-practice-card {
        scroll-behavior: auto;
        transition: none;
    }

    .uc-toc a:hover,
    .uc-toc a:focus,
    .uc-related-card:hover,
    .uc-related-card:focus,
    .uc-practice-card:hover {
        transform: none;
    }
}


/* =========================================================
   TABLET
   ========================================================= */

@media (max-width: 991.98px) {
    .uc-definition-grid,
    .uc-coordinate-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .uc-definition-card:last-child,
    .uc-coordinate-card:last-child {
        grid-column: 1 / -1;
    }

    .uc-memory-sequence {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .uc-graph-complete {
        height: clamp(500px, 88vw, 700px);
    }
}


/* =========================================================
   MOBILE
   ========================================================= */

@media (max-width: 767.98px) {
    .uc-toc {
        padding: 1.25rem;
    }

    .uc-toc ul,
    .uc-definition-grid,
    .uc-coordinate-grid,
    .uc-conversion-grid,
    .uc-special-triangle-grid,
    .uc-example-grid,
    .uc-tangent-grid,
    .uc-quadrant-grid,
    .uc-reference-grid,
    .uc-mistake-grid,
    .uc-practice-grid,
    .uc-summary-grid,
    .uc-related-grid {
        grid-template-columns: 1fr;
    }

    .uc-definition-card:last-child,
    .uc-coordinate-card:last-child {
        grid-column: auto;
    }

    .uc-visual-heading {
        align-items: flex-start;
        flex-direction: column;
    }

    .uc-visual-note {
        white-space: normal;
    }

    .uc-graph {
        height: min(92vw, 430px);
    }

    .uc-graph-large {
        height: min(100vw, 500px);
    }

    .uc-graph-complete {
        height: min(118vw, 620px);
        min-height: 460px;
    }

    .uc-example-card,
    .uc-definition-card,
    .uc-coordinate-card,
    .uc-conversion-card,
    .uc-special-triangle-card,
    .uc-tangent-card,
    .uc-quadrant-card,
    .uc-reference-card,
    .uc-mistake-card {
        padding: 1.2rem;
    }

    .uc-warning-card,
    .uc-final-check {
        flex-direction: column;
    }

    .uc-memory-sequence {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .uc-angle-table-wrap {
        padding: 1rem;
    }

    .uc-angle-table {
        font-size: 0.9rem;
    }

    .uc-angle-table thead th,
    .uc-angle-table tbody td {
        padding: 0.75rem 0.6rem;
    }
}


/* =========================================================
   SMALL MOBILE
   ========================================================= */

@media (max-width: 479.98px) {
    .uc-memory-sequence {
        grid-template-columns: 1fr;
    }

    .uc-memory-sequence span {
        min-height: 4.8rem;
    }

    .uc-practice-options,
    .uc-summary-card {
        border-radius: var(--uc-radius);
        padding: 1.2rem;
    }

    .uc-visual-heading,
    .uc-visual-caption {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .uc-graph {
        height: 340px;
    }

    .uc-graph-large {
        height: 390px;
    }

    .uc-graph-complete {
        height: 500px;
        min-height: 500px;
    }

    .uc-answer-box,
    .uc-worked-math {
        padding-left: 0.8rem;
        padding-right: 0.8rem;
    }
}


/* =========================================================
   PRINT CLEANUP
   ========================================================= */

@media print {
    .uc-practice-options,
    .uc-related-section {
        break-inside: avoid;
    }

    .uc-content-section,
    .uc-example-card,
    .uc-visual-card,
    .uc-angle-table-wrap,
    .uc-summary-card {
        box-shadow: none;
    }

    .uc-related-card,
    .uc-practice-card {
        transform: none !important;
    }

    .uc-graph,
    .uc-graph-large,
    .uc-graph-complete {
        break-inside: avoid;
    }
}

/* =========================================================
   COMPLETE UNIT CIRCLE LABELS
   ========================================================= */

.uc-circle-angle-label {
    pointer-events: none;
    text-align: center;
}

.uc-angle-degree,
.uc-angle-radian {
    display: block;
}

.uc-angle-degree {
    font-size: 1em;
    font-weight: 800;
}

.uc-angle-radian {
    font-size: 0.88em;
    margin-top: 0.12rem;
}

.uc-circle-coordinate-label {
    pointer-events: none;
}

@media (max-width: 767.98px) {
    .uc-circle-coordinate-label {
        display: none !important;
    }

    .uc-circle-angle-label {
        font-size: 10px !important;
    }
}

/* =========================================================
   REFERENCE PDF DOWNLOAD
   ========================================================= */

.uc-reference-table-header {
    align-items: center;
    display: flex;
    gap: 1rem;
    justify-content: space-between;
    margin-bottom: 1.25rem;
}

.uc-reference-table-header h3 {
    margin-bottom: 0;
}

.uc-reference-download {
    flex: 0 0 auto;
    white-space: nowrap;
}

@media (max-width: 767.98px) {
    .uc-reference-table-header {
        align-items: stretch;
        flex-direction: column;
    }

    .uc-reference-download {
        align-self: flex-start;
        white-space: normal;
    }
}