/* =========================================
   How It Works page
   Supplemental styles loaded after styles.css
========================================= */

.main-navigation > a.active:not(.nav-button) {
    color: var(--primary);
}

.how-hero {
    position: relative;
    overflow: hidden;
    padding: 76px 0 96px;
}

.how-hero-decoration {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}

.how-hero-decoration-one {
    width: 520px;
    height: 520px;
    top: -290px;
    right: -120px;
    background:
        radial-gradient(
            circle,
            rgba(108, 86, 232, 0.18),
            rgba(108, 86, 232, 0)
        );
}

.how-hero-decoration-two {
    width: 420px;
    height: 420px;
    bottom: -260px;
    left: -180px;
    background:
        radial-gradient(
            circle,
            rgba(79, 199, 160, 0.14),
            rgba(79, 199, 160, 0)
        );
}

.how-hero-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(330px, 0.72fr);
    align-items: center;
    gap: 72px;
}

.breadcrumbs {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 23px;
    color: var(--text-muted);
    font-size: 0.8rem;
    font-weight: 650;
}

.breadcrumbs a:hover {
    color: var(--primary);
}

.how-hero h1 {
    max-width: 760px;
    margin: 0;
    font-size: clamp(3.2rem, 6.7vw, 5.7rem);
    line-height: 0.98;
    letter-spacing: -0.055em;
}

.how-hero h1 span {
    color: var(--primary);
}

.how-hero-description {
    max-width: 720px;
    margin: 26px 0 0;
    color: var(--text-muted);
    font-size: 1.08rem;
}

.learning-loop {
    position: relative;
    padding: 28px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.learning-loop::before {
    content: "";
    position: absolute;
    inset: 12px;
    z-index: -1;
    border-radius: inherit;
    background:
        linear-gradient(
            135deg,
            rgba(108, 86, 232, 0.13),
            rgba(79, 199, 160, 0.1)
        );
    transform: rotate(3deg);
}

.learning-loop-label {
    display: inline-flex;
    margin-bottom: 16px;
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 850;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.loop-step {
    display: grid;
    grid-template-columns: 42px 1fr;
    gap: 14px;
    padding: 17px 0;
    border-top: 1px solid var(--border);
}

.loop-step > span {
    width: 38px;
    height: 38px;
    display: grid;
    place-items: center;
    color: #fff;
    background: var(--primary);
    border-radius: 12px;
    font-size: 0.82rem;
    font-weight: 850;
}

.loop-step strong {
    display: block;
    margin-top: -2px;
}

.loop-step p {
    margin: 4px 0 0;
    color: var(--text-muted);
    font-size: 0.84rem;
}

.learning-principles {
    padding: 96px 0;
    background: #fff;
}

.principles-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
    margin-top: 45px;
}

.principle-card {
    padding: 26px;
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
}

.principle-icon {
    width: 52px;
    height: 52px;
    display: grid;
    place-items: center;
    background: var(--primary-light);
    border-radius: 15px;
    font-size: 1.4rem;
}

.principle-card h3 {
    margin: 18px 0 8px;
    font-size: 1.02rem;
}

.principle-card p {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.88rem;
}

.games-explained {
    padding: 104px 0;
}

.game-explainer {
    display: grid;
    grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
    gap: 0;
    overflow: hidden;
    margin-top: 36px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.game-explainer:first-of-type {
    margin-top: 58px;
}

.game-explainer-summary {
    padding: clamp(30px, 5vw, 52px);
    border-right: 1px solid var(--border);
}

.game-explainer-purple .game-explainer-summary {
    background:
        linear-gradient(
            145deg,
            rgba(108, 86, 232, 0.13),
            rgba(238, 234, 255, 0.45)
        );
}

.game-explainer-blue .game-explainer-summary {
    background:
        linear-gradient(
            145deg,
            rgba(88, 166, 255, 0.15),
            rgba(230, 241, 255, 0.55)
        );
}

.game-explainer-green .game-explainer-summary {
    background:
        linear-gradient(
            145deg,
            rgba(79, 199, 160, 0.16),
            rgba(228, 251, 243, 0.55)
        );
}

.game-explainer-icon {
    width: 72px;
    height: 72px;
    display: grid;
    place-items: center;
    margin-bottom: 24px;
    background: rgba(255, 255, 255, 0.88);
    border: 1px solid rgba(255, 255, 255, 0.8);
    border-radius: 22px;
    box-shadow: var(--shadow-sm);
    font-size: 2rem;
}

.game-kicker {
    color: var(--primary);
    font-size: 0.72rem;
    font-weight: 850;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.game-explainer h3 {
    margin: 7px 0 12px;
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1;
    letter-spacing: -0.04em;
}

.game-explainer-summary p {
    margin: 0 0 26px;
    color: var(--text-muted);
}

.game-explainer-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-content: start;
    gap: 30px 34px;
    padding: clamp(30px, 5vw, 52px);
}

.detail-block h4 {
    margin: 0 0 14px;
    font-size: 1rem;
}

.detail-block ul,
.practice-box ol {
    margin: 0;
    padding-left: 20px;
}

.detail-block li,
.practice-box li {
    margin-top: 8px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.detail-block li:first-child,
.practice-box li:first-child {
    margin-top: 0;
}

.detail-block p {
    margin: 16px 0 0;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.skill-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.skill-pills span {
    display: inline-flex;
    padding: 6px 10px;
    color: var(--primary-dark);
    background: var(--primary-light);
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 750;
}

.practice-box {
    grid-column: 1 / -1;
    padding: 24px;
    background: var(--surface-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
}

.practice-label {
    display: block;
    margin-bottom: 12px;
    color: var(--primary);
    font-size: 0.74rem;
    font-weight: 850;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.cognitive-section {
    padding: 102px 0;
    background: #fff;
}

.cognitive-grid {
    display: grid;
    grid-template-columns: 1fr 0.82fr;
    align-items: center;
    gap: 80px;
}

.cognitive-grid h2 {
    margin: 0;
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    line-height: 1.08;
    letter-spacing: -0.04em;
}

.cognitive-grid h2 span {
    color: var(--primary);
}

.cognitive-grid p {
    color: var(--text-muted);
}

.cognitive-grid p:first-of-type {
    margin-top: 22px;
}

.cognitive-list {
    display: grid;
    gap: 12px;
}

.cognitive-list > div {
    padding: 20px 22px;
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: 16px;
}

.cognitive-list strong {
    display: block;
    margin-bottom: 3px;
    color: var(--text);
}

.cognitive-list span {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.practice-guide {
    padding: 102px 0;
}

.practice-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 14px;
    margin-top: 50px;
}

.practice-grid article {
    padding: 24px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
}

.practice-grid article > span {
    color: #d6d0f5;
    font-size: 1.5rem;
    font-weight: 900;
}

.practice-grid h3 {
    margin: 13px 0 7px;
    font-size: 1.05rem;
}

.practice-grid p {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.84rem;
}

.cursive-note {
    padding: 0 0 102px;
}

.cursive-note-card {
    display: grid;
    grid-template-columns: 82px 1fr;
    gap: 28px;
    padding: clamp(30px, 5vw, 52px);
    background:
        linear-gradient(
            135deg,
            rgba(255, 184, 77, 0.13),
            rgba(108, 86, 232, 0.08)
        );
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}

.cursive-note-icon {
    width: 74px;
    height: 74px;
    display: grid;
    place-items: center;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 21px;
    box-shadow: var(--shadow-sm);
    font-size: 2rem;
}

.cursive-note-card h2 {
    margin: 0;
    font-size: clamp(1.9rem, 4vw, 2.8rem);
    line-height: 1.08;
    letter-spacing: -0.035em;
}

.cursive-note-card p {
    margin: 14px 0 0;
    color: var(--text-muted);
}

.faq-section {
    padding: 102px 0;
    background: #fff;
}

.faq-container {
    display: grid;
    grid-template-columns: 0.72fr 1.28fr;
    align-items: start;
    gap: 70px;
}

.faq-intro {
    position: sticky;
    top: 110px;
}

.faq-intro h2 {
    margin: 0;
    font-size: clamp(2rem, 4vw, 3.1rem);
    line-height: 1.08;
    letter-spacing: -0.04em;
}

.faq-intro p {
    color: var(--text-muted);
}

.faq-list {
    display: grid;
    gap: 11px;
}

.faq-list details {
    overflow: hidden;
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: 15px;
}

.faq-list summary {
    position: relative;
    padding: 20px 52px 20px 21px;
    cursor: pointer;
    font-weight: 750;
    list-style: none;
}

.faq-list summary::-webkit-details-marker {
    display: none;
}

.faq-list summary::after {
    content: "+";
    position: absolute;
    top: 50%;
    right: 20px;
    transform: translateY(-50%);
    color: var(--primary);
    font-size: 1.4rem;
    line-height: 1;
}

.faq-list details[open] summary::after {
    content: "−";
}

.faq-list details p {
    margin: 0;
    padding: 0 21px 22px;
    color: var(--text-muted);
    font-size: 0.91rem;
}

@media (max-width: 1080px) {
    .principles-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

@media (max-width: 900px) {
    .how-hero-grid,
    .game-explainer,
    .cognitive-grid,
    .faq-container {
        grid-template-columns: 1fr;
    }

    .how-hero-grid,
    .cognitive-grid,
    .faq-container {
        gap: 42px;
    }

    .learning-loop {
        max-width: 650px;
    }

    .game-explainer-summary {
        border-right: 0;
        border-bottom: 1px solid var(--border);
    }

    .faq-intro {
        position: static;
    }
}

@media (max-width: 700px) {
    .how-hero {
        padding: 58px 0 74px;
    }

    .how-hero h1 {
        font-size: clamp(3rem, 14vw, 4.4rem);
    }

    .principles-grid,
    .game-explainer-detail,
    .practice-grid {
        grid-template-columns: 1fr;
    }

    .practice-box {
        grid-column: auto;
    }

    .cursive-note-card {
        grid-template-columns: 1fr;
    }

    .cursive-note-icon {
        width: 62px;
        height: 62px;
        border-radius: 18px;
        font-size: 1.65rem;
    }
}