/* ==========================================================
   BELAJAREDUTECH
   GEOMETRI - MATEMATIKA KELAS 3
========================================================== */

.geometry-grade-three-page {
    --geometry-accent: #7c3aed;
    --geometry-accent-dark: #6d28d9;
    --geometry-accent-soft: #f5f3ff;
    --geometry-secondary: #2563eb;
    --geometry-green: #0f766e;
    --geometry-orange: #c2410c;
}



/* ==========================================================
   HERO
========================================================== */

.geometry-three-hero {
    background:
        radial-gradient(
            circle at 85% 17%,
            rgba(124, 58, 237, 0.13),
            transparent 31%
        ),
        radial-gradient(
            circle at 12% 88%,
            rgba(37, 99, 235, 0.08),
            transparent 28%
        ),
        linear-gradient(
            180deg,
            #fbf9ff,
            #ffffff
        );
}


.geometry-three-hero-card {
    min-height: 430px;

    display: flex;
    flex-direction: column;

    align-items: center;
    justify-content: center;

    padding: 38px;

    color: #ffffff;

    background:
        linear-gradient(
            135deg,
            var(--geometry-accent),
            var(--geometry-secondary)
        );

    border-radius:
        var(--radius-extra-large, 28px);

    box-shadow:
        var(
            --shadow-large,
            0 30px 80px rgba(15, 23, 42, 0.18)
        );

    text-align: center;
}


.geometry-three-hero-label {
    margin-bottom: 25px;

    color:
        rgba(255, 255, 255, 0.7);

    font-size: 0.68rem;

    font-weight: 850;

    text-transform: uppercase;

    letter-spacing: 0.08em;
}


.geometry-hero-shapes {
    display: flex;

    align-items: center;
    justify-content: center;

    flex-wrap: wrap;

    gap: 15px;

    margin-bottom: 28px;
}


.geometry-hero-shapes > span {
    display: block;

    background: #ffffff;
}


.geometry-hero-triangle {
    width: 70px;
    height: 65px;

    clip-path:
        polygon(
            50% 0,
            100% 100%,
            0 100%
        );
}


.geometry-hero-square {
    width: 65px;
    height: 65px;

    border-radius: 7px;
}


.geometry-hero-rectangle {
    width: 95px;
    height: 60px;

    border-radius: 7px;
}


.geometry-hero-pentagon {
    width: 70px;
    height: 68px;

    clip-path:
        polygon(
            50% 0,
            100% 38%,
            82% 100%,
            18% 100%,
            0 38%
        );
}


.geometry-hero-info {
    display: flex;

    justify-content: center;

    flex-wrap: wrap;

    gap: 7px;

    margin-bottom: 14px;
}


.geometry-hero-info span {
    padding: 7px 10px;

    background:
        rgba(255, 255, 255, 0.09);

    border:
        1px solid
        rgba(255, 255, 255, 0.13);

    border-radius: 999px;

    font-size: 0.6rem;

    font-weight: 750;
}


.geometry-three-hero-card > strong {
    color:
        rgba(255, 255, 255, 0.72);

    font-size: 0.67rem;
}



/* ==========================================================
   INTRO
========================================================== */

.geometry-intro-visual {
    min-height: 350px;

    display: grid;

    grid-template-columns:
        repeat(2, 1fr);

    align-items: center;

    gap: 12px;

    padding: 32px;

    color: #ffffff;

    background:
        linear-gradient(
            135deg,
            var(--geometry-green),
            #0891b2
        );
}


.geometry-intro-visual > div {
    min-height: 200px;

    display: flex;
    flex-direction: column;

    align-items: center;
    justify-content: center;

    padding: 20px;

    background:
        rgba(255, 255, 255, 0.08);

    border:
        1px solid
        rgba(255, 255, 255, 0.12);

    border-radius:
        var(--radius-medium, 14px);

    text-align: center;
}


.intro-geometry-square {
    width: 80px;
    height: 80px;

    display: block;

    background: #ffffff;

    border-radius: 8px;
}


.intro-geometry-rectangle {
    width: 110px;
    height: 72px;

    display: block;

    background: #ffffff;

    border-radius: 8px;
}


.geometry-intro-visual strong {
    margin-top: 18px;

    margin-bottom: 4px;
}


.geometry-intro-visual small {
    color:
        rgba(255, 255, 255, 0.68);

    font-size: 0.61rem;
}



/* ==========================================================
   ELEMENTS
========================================================== */

.geometry-elements-section {
    background:
        var(--color-background, #ffffff);
}


.geometry-elements-card {
    max-width: 850px;

    display: grid;

    grid-template-columns:
        0.8fr 1.2fr;

    align-items: center;

    gap: 45px;

    margin-inline: auto;

    padding: 30px;

    background:
        var(--geometry-accent-soft);

    border:
        1px solid #ddd6fe;

    border-radius:
        var(--radius-extra-large, 28px);
}


.geometry-demo-square {
    position: relative;

    width: 210px;
    height: 210px;

    margin-inline: auto;

    background: #ffffff;
}


.demo-side {
    position: absolute;

    display: block;

    background:
        var(--geometry-accent);
}


.demo-side-top,
.demo-side-bottom {
    width: 100%;
    height: 8px;

    left: 0;
}


.demo-side-top {
    top: 0;
}


.demo-side-bottom {
    bottom: 0;
}


.demo-side-left,
.demo-side-right {
    width: 8px;
    height: 100%;

    top: 0;
}


.demo-side-left {
    left: 0;
}


.demo-side-right {
    right: 0;
}


.demo-corner {
    position: absolute;

    width: 20px;
    height: 20px;

    display: block;

    background:
        var(--geometry-orange);

    border:
        4px solid #ffffff;

    border-radius: 50%;
}


.demo-corner-one {
    top: -6px;
    left: -6px;
}


.demo-corner-two {
    top: -6px;
    right: -6px;
}


.demo-corner-three {
    right: -6px;
    bottom: -6px;
}


.demo-corner-four {
    left: -6px;
    bottom: -6px;
}


.geometry-elements-info {
    display: grid;

    gap: 12px;
}


.geometry-elements-info > div {
    padding: 18px;

    background: #ffffff;

    border-radius:
        var(--radius-medium, 14px);
}


.geometry-elements-info span,
.geometry-elements-info strong {
    display: block;
}


.geometry-elements-info span {
    margin-bottom: 5px;

    color:
        var(--color-text-muted, #64748b);

    font-size: 0.62rem;

    font-weight: 850;

    text-transform: uppercase;
}


.geometry-elements-info strong {
    margin-bottom: 5px;

    color:
        var(--geometry-accent);

    font-size: 1.5rem;
}


.geometry-elements-info p {
    margin: 0;

    color:
        var(--color-text-muted, #64748b);

    font-size: 0.74rem;

    line-height: 1.6;
}



/* ==========================================================
   COUNT
========================================================== */

.geometry-count-section {
    background:
        var(--color-background-soft, #f8fafc);
}


.geometry-count-grid {
    display: grid;

    grid-template-columns:
        repeat(3, 1fr);

    gap: 18px;
}


.geometry-count-card {
    position: relative;

    padding: 25px;

    background: #ffffff;

    border:
        1px solid
        var(--color-border, #e2e8f0);

    border-radius:
        var(--radius-large, 20px);

    text-align: center;
}


.geometry-count-visual {
    min-height: 160px;

    display: flex;

    align-items: center;
    justify-content: center;

    margin-bottom: 18px;

    background:
        var(--color-background-soft, #f8fafc);

    border-radius:
        var(--radius-medium, 14px);
}


.count-triangle,
.count-quadrilateral,
.count-pentagon {
    display: block;

    background:
        var(--geometry-accent);
}


.count-triangle {
    width: 105px;
    height: 95px;

    clip-path:
        polygon(
            50% 0,
            100% 100%,
            0 100%
        );
}


.count-quadrilateral {
    width: 110px;
    height: 90px;

    clip-path:
        polygon(
            15% 0,
            100% 10%,
            85% 100%,
            0 85%
        );
}


.count-pentagon {
    width: 105px;
    height: 100px;

    clip-path:
        polygon(
            50% 0,
            100% 38%,
            82% 100%,
            18% 100%,
            0 38%
        );
}


.geometry-count-number {
    width: 42px;
    height: 42px;

    display: grid;

    place-items: center;

    margin:
        -40px auto 14px;

    position: relative;

    color: #ffffff;

    background:
        var(--geometry-secondary);

    border:
        4px solid #ffffff;

    border-radius: 50%;

    font-weight: 900;
}


.geometry-count-card h3 {
    margin-bottom: 8px;
}


.geometry-count-card p {
    margin: 0;

    color:
        var(--color-text-muted, #64748b);

    font-size: 0.74rem;
}



/* ==========================================================
   QUADRILATERALS
========================================================== */

.quadrilateral-section {
    background:
        var(--color-background, #ffffff);
}


.quadrilateral-grid {
    display: grid;

    grid-template-columns:
        repeat(3, 1fr);

    gap: 18px;
}


.quadrilateral-card {
    padding: 25px;

    background:
        var(--color-background-soft, #f8fafc);

    border:
        1px solid
        var(--color-border, #e2e8f0);

    border-radius:
        var(--radius-large, 20px);
}


.quadrilateral-visual {
    min-height: 160px;

    display: flex;

    align-items: center;
    justify-content: center;

    margin-bottom: 18px;

    background: #ffffff;

    border-radius:
        var(--radius-medium, 14px);
}


.quad-square,
.quad-rectangle,
.quad-trapezoid {
    display: block;
}


.quad-square {
    width: 95px;
    height: 95px;

    background:
        var(--geometry-accent);

    border-radius: 8px;
}


.quad-rectangle {
    width: 135px;
    height: 85px;

    background:
        var(--geometry-green);

    border-radius: 8px;
}


.quad-trapezoid {
    width: 135px;
    height: 90px;

    background:
        var(--geometry-orange);

    clip-path:
        polygon(
            22% 0,
            78% 0,
            100% 100%,
            0 100%
        );
}


.quadrilateral-card h3 {
    margin-bottom: 14px;

    text-align: center;
}


.quadrilateral-properties {
    display: flex;

    flex-wrap: wrap;

    justify-content: center;

    gap: 7px;
}


.quadrilateral-properties span {
    padding: 7px 9px;

    color:
        var(--geometry-accent-dark);

    background:
        var(--geometry-accent-soft);

    border-radius: 999px;

    font-size: 0.58rem;

    font-weight: 750;
}



/* ==========================================================
   COMPARE
========================================================== */

.geometry-compare-section {
    background:
        var(--color-background-soft, #f8fafc);
}


.geometry-compare-wrapper,
.right-angle-wrapper {
    display: grid;

    grid-template-columns:
        minmax(0, 0.75fr)
        minmax(500px, 1.25fr);

    align-items: center;

    gap: 70px;
}


.geometry-compare-content h2,
.right-angle-content h2 {
    margin-bottom: 18px;

    font-size:
        clamp(
            2.2rem,
            4vw,
            3.5rem
        );

    letter-spacing: -0.04em;
}


.geometry-compare-content p,
.right-angle-content p {
    color:
        var(--color-text-muted, #64748b);

    line-height: 1.8;
}


.geometry-compare-card {
    padding: 28px;

    background: #ffffff;

    border:
        1px solid
        var(--color-border, #e2e8f0);

    border-radius:
        var(--radius-large, 20px);
}


.geometry-compare-head {
    display: grid;

    grid-template-columns:
        1fr auto 1fr;

    align-items: center;

    gap: 15px;

    margin-bottom: 18px;
}


.geometry-compare-head > div {
    min-height: 150px;

    display: flex;
    flex-direction: column;

    align-items: center;
    justify-content: center;

    gap: 15px;

    background:
        var(--geometry-accent-soft);

    border-radius:
        var(--radius-medium, 14px);
}


.compare-square {
    width: 65px;
    height: 65px;

    display: block;

    background:
        var(--geometry-accent);

    border-radius: 7px;
}


.compare-rectangle {
    width: 90px;
    height: 60px;

    display: block;

    background:
        var(--geometry-green);

    border-radius: 7px;
}


.geometry-compare-head > span {
    color:
        var(--color-text-muted, #64748b);

    font-size: 0.7rem;
}


.geometry-compare-properties {
    display: grid;

    grid-template-columns:
        repeat(2, 1fr);

    gap: 8px;
}


.geometry-compare-properties > div {
    padding: 15px;

    background:
        var(--color-background-soft, #f8fafc);

    border-radius: 10px;
}


.geometry-compare-properties span {
    display: block;

    margin-bottom: 5px;

    color:
        var(--geometry-accent);

    font-size: 0.61rem;

    font-weight: 850;

    text-transform: uppercase;
}


.geometry-compare-properties p {
    margin: 0;

    color:
        var(--color-text-muted, #64748b);

    font-size: 0.72rem;

    line-height: 1.6;
}



/* ==========================================================
   ANGLES
========================================================== */

.geometry-angle-section {
    background:
        var(--color-background, #ffffff);
}


.angle-type-grid {
    display: grid;

    grid-template-columns:
        repeat(3, 1fr);

    gap: 18px;
}


.angle-type-card {
    padding: 25px;

    background:
        var(--color-background-soft, #f8fafc);

    border:
        1px solid
        var(--color-border, #e2e8f0);

    border-radius:
        var(--radius-large, 20px);

    text-align: center;
}


.angle-visual {
    position: relative;

    width: 190px;
    height: 160px;

    margin:
        0 auto 18px;

    background: #ffffff;

    border-radius:
        var(--radius-medium, 14px);
}


.angle-ray-one,
.angle-ray-two {
    position: absolute;

    left: 45px;
    bottom: 40px;

    width: 105px;
    height: 7px;

    display: block;

    background:
        var(--geometry-accent);

    border-radius: 999px;

    transform-origin:
        left center;
}


.angle-ray-one {
    transform:
        rotate(0deg);
}


.angle-visual-narrow
.angle-ray-two {
    transform:
        rotate(-45deg);
}


.angle-visual-right
.angle-ray-two {
    transform:
        rotate(-90deg);
}


.angle-visual-wide
.angle-ray-two {
    transform:
        rotate(-130deg);
}


.angle-visual > i {
    position: absolute;

    left: 38px;
    bottom: 33px;

    width: 20px;
    height: 20px;

    display: block;

    background:
        var(--geometry-secondary);

    border:
        4px solid #ffffff;

    border-radius: 50%;
}


.angle-visual-right > b {
    position: absolute;

    left: 56px;
    bottom: 48px;

    width: 25px;
    height: 25px;

    display: block;

    border-left:
        4px solid
        var(--geometry-orange);

    border-bottom:
        4px solid
        var(--geometry-orange);
}


.angle-type-card h3 {
    margin-bottom: 8px;
}


.angle-type-card p {
    margin: 0;

    color:
        var(--color-text-muted, #64748b);

    font-size: 0.74rem;

    line-height: 1.6;
}



/* ==========================================================
   RIGHT ANGLE
========================================================== */

.right-angle-section {
    background:
        var(--color-background-soft, #f8fafc);
}


.right-angle-card {
    display: grid;

    grid-template-columns:
        minmax(260px, 0.8fr)
        1.2fr;

    align-items: center;

    overflow: hidden;

    background: #ffffff;

    border:
        1px solid
        var(--color-border, #e2e8f0);

    border-radius:
        var(--radius-large, 20px);
}


.right-angle-book {
    position: relative;

    min-height: 300px;

    display: flex;

    align-items: center;
    justify-content: center;

    background:
        var(--geometry-accent-soft);
}


.right-angle-book > span {
    width: 170px;
    height: 220px;

    display: block;

    background:
        var(--geometry-accent);

    border-radius: 8px 14px 14px 8px;

    box-shadow:
        inset 14px 0
        rgba(255, 255, 255, 0.15);
}


.right-angle-book > i {
    position: absolute;

    left: calc(50% - 85px);
    bottom: 40px;

    width: 34px;
    height: 34px;

    border-left:
        6px solid
        var(--geometry-orange);

    border-bottom:
        6px solid
        var(--geometry-orange);
}


.right-angle-description {
    padding: 30px;
}


.right-angle-description strong {
    display: block;

    margin-bottom: 10px;

    color:
        var(--geometry-accent);

    font-size: 1.4rem;
}


.right-angle-description p {
    margin: 0;

    color:
        var(--color-text-muted, #64748b);

    line-height: 1.7;
}



/* ==========================================================
   COMPOSITION
========================================================== */

.geometry-composition-section {
    background:
        var(--color-background, #ffffff);
}


.geometry-house-card {
    max-width: 850px;

    display: grid;

    grid-template-columns:
        1fr 1fr;

    align-items: center;

    gap: 30px;

    margin-inline: auto;

    padding: 30px;

    background:
        var(--geometry-accent-soft);

    border:
        1px solid #ddd6fe;

    border-radius:
        var(--radius-extra-large, 28px);
}


.geometry-house {
    position: relative;

    width: 270px;
    height: 270px;

    margin-inline: auto;
}


.geometry-house-roof {
    position: absolute;

    top: 0;
    left: 50%;

    width: 0;
    height: 0;

    border-left:
        115px solid transparent;

    border-right:
        115px solid transparent;

    border-bottom:
        105px solid
        var(--geometry-orange);

    transform:
        translateX(-50%);
}


.geometry-house-body {
    position: absolute;

    left: 35px;
    bottom: 0;

    width: 200px;
    height: 170px;

    background:
        var(--geometry-accent);

    border-radius: 5px;
}


.geometry-house-door {
    position: absolute;

    left: 110px;
    bottom: 0;

    width: 55px;
    height: 95px;

    background: #ffffff;

    border-radius:
        5px 5px 0 0;
}


.geometry-house-window {
    position: absolute;

    left: 58px;
    bottom: 84px;

    width: 45px;
    height: 45px;

    background: #bfdbfe;

    border:
        4px solid #ffffff;

    border-radius: 4px;
}


.geometry-house-info {
    display: grid;

    gap: 8px;
}


.geometry-house-info > div {
    padding: 14px;

    background: #ffffff;

    border-radius: 10px;
}


.geometry-house-info span,
.geometry-house-info strong {
    display: block;
}


.geometry-house-info span {
    margin-bottom: 4px;

    color:
        var(--color-text-muted, #64748b);

    font-size: 0.59rem;
}


.geometry-house-info strong {
    color:
        var(--geometry-accent-dark);
}



/* ==========================================================
   INTERACTIVE
========================================================== */

.geometry-interactive-section {
    color: #ffffff;

    background: #0f172a;
}


.geometry-interactive-section
.section-eyebrow {
    color: #c4b5fd;
}


.geometry-interactive-section
.section-header p {
    color: #94a3b8;
}


.geometry-lab {
    max-width: 1000px;

    margin-inline: auto;
}


.shape-explorer-panel,
.angle-explorer-panel {
    margin-bottom: 18px;

    padding: 30px;

    background:
        rgba(255, 255, 255, 0.06);

    border:
        1px solid
        rgba(255, 255, 255, 0.1);

    border-radius:
        var(--radius-extra-large, 28px);
}


.geometry-lab-heading {
    margin-bottom: 25px;

    text-align: center;
}


.geometry-lab-heading > span {
    display: block;

    margin-bottom: 5px;

    color: #c4b5fd;

    font-size: 0.62rem;

    font-weight: 850;

    text-transform: uppercase;

    letter-spacing: 0.08em;
}


.geometry-lab-heading h3 {
    margin-bottom: 7px;

    color: #ffffff;
}


.geometry-lab-heading p {
    margin: 0;

    color: #94a3b8;

    font-size: 0.75rem;
}



/* ==========================================================
   SHAPE SELECTOR
========================================================== */

.geometry-shape-selector {
    display: grid;

    grid-template-columns:
        repeat(5, 1fr);

    gap: 8px;

    margin-bottom: 15px;
}


.geometry-shape-button {
    min-height: 120px;

    display: flex;
    flex-direction: column;

    align-items: center;
    justify-content: center;

    gap: 12px;

    padding: 13px;

    color: #cbd5e1;

    background:
        rgba(255, 255, 255, 0.06);

    border:
        1px solid
        rgba(255, 255, 255, 0.1);

    border-radius:
        var(--radius-medium, 14px);

    font-size: 0.61rem;

    font-weight: 750;

    text-align: center;
}


.geometry-shape-button.active {
    color: #ffffff;

    background:
        var(--geometry-accent);

    border-color:
        var(--geometry-accent);
}


.geometry-shape-button > span {
    display: block;

    background:
        currentColor;
}


.selector-geometry-triangle {
    width: 48px;
    height: 44px;

    clip-path:
        polygon(
            50% 0,
            100% 100%,
            0 100%
        );
}


.selector-geometry-square {
    width: 44px;
    height: 44px;

    border-radius: 5px;
}


.selector-geometry-rectangle {
    width: 58px;
    height: 40px;

    border-radius: 5px;
}


.selector-geometry-trapezoid {
    width: 55px;
    height: 42px;

    clip-path:
        polygon(
            20% 0,
            80% 0,
            100% 100%,
            0 100%
        );
}


.selector-geometry-pentagon {
    width: 48px;
    height: 46px;

    clip-path:
        polygon(
            50% 0,
            100% 38%,
            82% 100%,
            18% 100%,
            0 38%
        );
}



/* ==========================================================
   SHAPE DISPLAY
========================================================== */

.geometry-shape-display {
    display: grid;

    grid-template-columns:
        minmax(280px, 0.8fr)
        minmax(380px, 1.2fr);

    overflow: hidden;

    color:
        var(--color-text-secondary, #334155);

    background: #ffffff;

    border-radius:
        var(--radius-large, 20px);
}


.geometry-shape-preview-area {
    min-height: 350px;

    display: flex;

    align-items: center;
    justify-content: center;

    background:
        var(--geometry-accent-soft);
}


.geometry-preview {
    display: block;

    background:
        var(--geometry-accent);

    transition:
        width 0.2s ease,
        height 0.2s ease,
        background 0.2s ease;
}


.geometry-preview-triangle {
    width: 180px;
    height: 165px;

    clip-path:
        polygon(
            50% 0,
            100% 100%,
            0 100%
        );
}


.geometry-preview-square {
    width: 165px;
    height: 165px;

    border-radius: 12px;
}


.geometry-preview-rectangle {
    width: 220px;
    height: 145px;

    background:
        var(--geometry-green);

    border-radius: 12px;
}


.geometry-preview-trapezoid {
    width: 220px;
    height: 150px;

    background:
        var(--geometry-orange);

    clip-path:
        polygon(
            20% 0,
            80% 0,
            100% 100%,
            0 100%
        );
}


.geometry-preview-pentagon {
    width: 175px;
    height: 170px;

    background:
        var(--geometry-secondary);

    clip-path:
        polygon(
            50% 0,
            100% 38%,
            82% 100%,
            18% 100%,
            0 38%
        );
}


.geometry-shape-information {
    padding: 35px;
}


.geometry-info-label {
    display: block;

    margin-bottom: 8px;

    color:
        var(--geometry-accent);

    font-size: 0.61rem;

    font-weight: 850;

    text-transform: uppercase;
}


.geometry-shape-information h4 {
    margin-bottom: 10px;

    font-size: 1.5rem;
}


.geometry-shape-information > p {
    color:
        var(--color-text-muted, #64748b);

    line-height: 1.7;
}


.geometry-property-grid {
    display: grid;

    grid-template-columns:
        repeat(3, 1fr);

    gap: 8px;

    margin-top: 22px;
}


.geometry-property-grid > div {
    padding: 14px;

    background:
        var(--color-background-soft, #f8fafc);

    border-radius: 10px;
}


.geometry-property-grid span,
.geometry-property-grid strong {
    display: block;
}


.geometry-property-grid span {
    margin-bottom: 5px;

    color:
        var(--color-text-muted, #64748b);

    font-size: 0.57rem;
}


.geometry-property-grid strong {
    color:
        var(--geometry-accent);

    font-size: 0.78rem;
}



/* ==========================================================
   ANGLE EXPLORER
========================================================== */

.angle-explorer-control {
    display: grid;

    grid-template-columns:
        1fr minmax(150px, 0.5fr) 1fr;

    align-items: center;

    gap: 10px;

    margin-bottom: 15px;
}


.angle-explorer-control > button {
    padding: 14px;

    color: #ffffff;

    background:
        rgba(255, 255, 255, 0.07);

    border:
        1px solid
        rgba(255, 255, 255, 0.12);

    border-radius:
        var(--radius-medium, 14px);

    font-weight: 850;
}


.angle-explorer-control > button:disabled {
    opacity: 0.35;

    cursor: not-allowed;
}


.angle-level-indicator {
    padding: 13px;

    background:
        var(--geometry-accent);

    border-radius:
        var(--radius-medium, 14px);

    text-align: center;
}


.angle-level-indicator span,
.angle-level-indicator strong {
    display: block;
}


.angle-level-indicator span {
    margin-bottom: 4px;

    color:
        rgba(255, 255, 255, 0.7);

    font-size: 0.56rem;
}


.angle-level-indicator strong {
    font-size: 1.3rem;
}


.angle-explorer-display {
    display: grid;

    grid-template-columns:
        minmax(300px, 0.9fr)
        minmax(350px, 1.1fr);

    align-items: center;

    overflow: hidden;

    margin-bottom: 15px;

    color:
        var(--color-text-secondary, #334155);

    background: #ffffff;

    border-radius:
        var(--radius-large, 20px);
}


.interactive-angle {
    position: relative;

    min-height: 350px;

    background:
        var(--geometry-accent-soft);
}


.interactive-angle-base,
.interactive-angle-moving {
    position: absolute;

    left: 85px;
    bottom: 90px;

    width: 175px;
    height: 8px;

    display: block;

    background:
        var(--geometry-accent);

    border-radius: 999px;

    transform-origin:
        left center;
}


.interactive-angle-base {
    transform:
        rotate(0deg);
}


.interactive-angle-moving {
    transform:
        rotate(-90deg);

    transition:
        transform 0.25s ease;
}


.interactive-angle > i {
    position: absolute;

    left: 76px;
    bottom: 81px;

    width: 26px;
    height: 26px;

    display: block;

    background:
        var(--geometry-secondary);

    border:
        5px solid #ffffff;

    border-radius: 50%;
}


.interactive-angle > b {
    position: absolute;

    left: 100px;
    bottom: 105px;

    width: 32px;
    height: 32px;

    display: none;

    border-left:
        5px solid
        var(--geometry-orange);

    border-bottom:
        5px solid
        var(--geometry-orange);
}


.interactive-angle > b.visible {
    display: block;
}


.angle-explorer-information {
    padding: 35px;
}


.angle-explorer-information > span {
    display: block;

    margin-bottom: 8px;

    color:
        var(--geometry-accent);

    font-size: 0.61rem;

    font-weight: 850;

    text-transform: uppercase;
}


.angle-explorer-information h4 {
    margin-bottom: 10px;

    font-size: 1.5rem;
}


.angle-explorer-information p {
    margin: 0;

    color:
        var(--color-text-muted, #64748b);

    line-height: 1.7;
}


.angle-scale {
    display: grid;

    grid-template-columns:
        auto 1fr auto;

    align-items: center;

    gap: 12px;

    margin-bottom: 15px;

    padding: 15px;

    background:
        rgba(255, 255, 255, 0.06);

    border:
        1px solid
        rgba(255, 255, 255, 0.09);

    border-radius:
        var(--radius-medium, 14px);
}


.angle-scale > span {
    color: #94a3b8;

    font-size: 0.6rem;
}


.angle-scale > div {
    display: grid;

    grid-template-columns:
        repeat(5, 1fr);

    gap: 6px;
}


.angle-scale i {
    height: 10px;

    display: block;

    background:
        rgba(255, 255, 255, 0.12);

    border-radius: 999px;
}


.angle-scale i.active {
    background: #c4b5fd;
}


.geometry-lab-actions {
    text-align: center;
}


.geometry-reset-button {
    color: #ffffff;

    background:
        rgba(255, 255, 255, 0.07);

    border:
        1px solid
        rgba(255, 255, 255, 0.14);
}



/* ==========================================================
   CLASSIFY
========================================================== */

.geometry-classify-section {
    background:
        var(--color-background, #ffffff);
}


.geometry-classify-card {
    padding: 28px;

    background:
        var(--color-background-soft, #f8fafc);

    border:
        1px solid
        var(--color-border, #e2e8f0);

    border-radius:
        var(--radius-large, 20px);
}


.geometry-classify-label {
    display: block;

    margin-bottom: 12px;

    color:
        var(--geometry-accent);

    font-size: 0.62rem;

    font-weight: 850;

    text-transform: uppercase;
}


.classify-shape {
    min-height: 160px;

    display: flex;

    align-items: center;
    justify-content: center;

    margin-bottom: 15px;

    background: #ffffff;

    border-radius:
        var(--radius-medium, 14px);
}


.classify-shape span {
    width: 150px;
    height: 105px;

    display: block;

    background:
        var(--geometry-orange);

    clip-path:
        polygon(
            20% 0,
            80% 0,
            100% 100%,
            0 100%
        );
}


.classify-questions {
    display: grid;

    grid-template-columns:
        repeat(3, 1fr);

    gap: 8px;

    margin-bottom: 15px;
}


.classify-questions > div {
    padding: 13px;

    background:
        var(--geometry-accent-soft);

    border-radius: 9px;
}


.classify-questions span,
.classify-questions strong {
    display: block;
}


.classify-questions span {
    margin-bottom: 5px;

    color:
        var(--color-text-muted, #64748b);

    font-size: 0.58rem;
}


.classify-questions strong {
    color:
        var(--geometry-accent);
}


.geometry-classify-card > p {
    margin: 0;

    color:
        var(--color-text-muted, #64748b);

    font-size: 0.74rem;

    line-height: 1.65;
}



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

.geometry-practice-visual {
    min-height: 135px;

    display: flex;

    align-items: center;
    justify-content: center;

    margin-bottom: 22px;

    background:
        var(--color-background-soft, #f8fafc);

    border-radius:
        var(--radius-medium, 14px);
}


.practice-pentagon {
    width: 90px;
    height: 88px;

    display: block;

    background:
        var(--geometry-secondary);

    clip-path:
        polygon(
            50% 0,
            100% 38%,
            82% 100%,
            18% 100%,
            0 38%
        );
}


.practice-square {
    width: 85px;
    height: 85px;

    display: block;

    background:
        var(--geometry-accent);

    border-radius: 8px;
}


.geometry-practice-angle {
    position: relative;

    min-height: 135px;

    margin-bottom: 22px;

    background:
        var(--color-background-soft, #f8fafc);

    border-radius:
        var(--radius-medium, 14px);
}


.geometry-practice-angle > span,
.geometry-practice-angle > i {
    position: absolute;

    left: 70px;
    bottom: 35px;

    width: 110px;
    height: 7px;

    display: block;

    background:
        var(--geometry-accent);

    border-radius: 999px;

    transform-origin:
        left center;
}


.geometry-practice-angle > i {
    transform:
        rotate(-90deg);
}


.geometry-practice-angle > b {
    position: absolute;

    left: 82px;
    bottom: 47px;

    width: 25px;
    height: 25px;

    border-left:
        4px solid
        var(--geometry-orange);

    border-bottom:
        4px solid
        var(--geometry-orange);
}



/* ==========================================================
   QUIZ STATES
========================================================== */

.geometry-grade-three-page
.quiz-options button.selected {
    border-color:
        var(--geometry-accent);

    background:
        var(--geometry-accent-soft);
}


.geometry-grade-three-page
.quiz-options button.correct {
    color: #166534;

    background: #dcfce7;

    border-color: #86efac;
}


.geometry-grade-three-page
.quiz-options button.incorrect {
    color: #991b1b;

    background: #fee2e2;

    border-color: #fca5a5;
}



/* ==========================================================
   RESPONSIVE
========================================================== */

@media (max-width: 1024px) {

    .geometry-compare-wrapper,
    .right-angle-wrapper {
        grid-template-columns: 1fr;

        gap: 45px;
    }


    .geometry-shape-selector {
        grid-template-columns:
            repeat(3, 1fr);
    }

}



@media (max-width: 860px) {

    .geometry-elements-card {
        grid-template-columns: 1fr;
    }


    .geometry-shape-display {
        grid-template-columns: 1fr;
    }


    .geometry-shape-preview-area {
        min-height: 300px;
    }


    .angle-explorer-display {
        grid-template-columns: 1fr;
    }

}



@media (max-width: 600px) {

    .geometry-three-hero-card {
        min-height: 380px;

        padding: 25px;
    }


    .geometry-intro-visual {
        grid-template-columns: 1fr;

        padding: 25px;
    }


    .geometry-count-grid,
    .quadrilateral-grid,
    .angle-type-grid {
        grid-template-columns: 1fr;
    }


    .geometry-demo-square {
        width: 170px;
        height: 170px;
    }


    .geometry-compare-head {
        grid-template-columns: 1fr;
    }


    .geometry-compare-properties {
        grid-template-columns: 1fr;
    }


    .right-angle-card {
        grid-template-columns: 1fr;
    }


    .geometry-house-card {
        grid-template-columns: 1fr;
    }


    .geometry-house {
        transform:
            scale(0.88);

        transform-origin:
            center;
    }


    .shape-explorer-panel,
    .angle-explorer-panel {
        padding: 18px;
    }


    .geometry-shape-selector {
        grid-template-columns:
            repeat(2, 1fr);
    }


    .geometry-property-grid {
        grid-template-columns: 1fr;
    }


    .angle-explorer-control {
        grid-template-columns: 1fr;
    }


    .interactive-angle-base,
    .interactive-angle-moving {
        left: 55px;

        width: 145px;
    }


    .interactive-angle > i {
        left: 46px;
    }


    .interactive-angle > b {
        left: 70px;
    }


    .classify-questions {
        grid-template-columns: 1fr;
    }

}