/* Custom properties based on Tailwind config for pure CSS use */
:root {
    --dark-bg: #5C0000;
    --dark-card: #4A0000;
    --primary-accent: #e9e9e9;
    --light-text: #e9e9e9;
    --muted-text: #C0C0C0;
    --divider: #A00000;
}

/* --- Base Styles --- */

html {
    /* Ensures smooth scrolling and prevents layout shifts */
    scroll-behavior: smooth;
}

.main-body {
    background-color: var(--dark-bg);
    color: var(--light-text);
    font-family: 'EB Garamond', serif;
    transition: background-color 0.3s, color 0.3s;
    line-height: 1.6;
    margin: 0;
}

.main-body ::selection {
    background-color: var(--light-text);
    color: var(--dark-bg);
}

.page-wrapper {
    max-width: 72rem; /* 6xl */
    margin-left: auto;
    margin-right: auto;
    padding: 4rem 3rem 4rem 3rem; /* py-16 px-12 */
}

/* --- Utility/State Classes --- */

.page-hidden {
    display: none;
}
.page-visible {
    display: block;
}

/* --- Header & Navigation --- */

.main-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    border-bottom: 1px solid var(--divider);
    padding-bottom: 1.5rem;
    margin-bottom: 4rem;
}

.brand-group {
    margin-top: 0;
    margin-bottom: 0.25rem;
}

.brand-title {
    font-size: 3rem; /* 5xl/6xl */
    font-weight: 700;
    letter-spacing: -0.025em; /* tracking-tight */
    color: var(--light-text);
    line-height: 1;
    cursor: pointer;
}
@media (min-width: 640px) {
    .brand-title {
        font-size: 3.75rem;
    }
}

.brand-subtitle {
    font-size: 1.25rem; /* xl */
    font-weight: 300;
    color: var(--primary-accent);
    text-transform: uppercase;
    letter-spacing: 0.1em; /* tracking-widest */
}

.main-nav {
    text-align: right;
    font-size: 1.125rem; /* lg */
    letter-spacing: 0.05em; /* tracking-wider */
    color: var(--muted-text);
    text-transform: uppercase;
    margin-top: 0.25rem;
}

.nav-link {
    display: block;
    background: none;
    border: none;
    color: var(--muted-text);
    padding: 0;
    margin-bottom: 0.5rem;
    cursor: pointer;
    transition: color 0.2s;
}

.nav-link:hover {
    color: var(--light-text);
}


/* --- Method Section (Quote and Box) --- */

.section-method {
    margin-bottom: 5rem;
}

.method-quote {
    font-size: 1.875rem; /* 3xl */
    font-style: italic;
    font-weight: 300;
    color: var(--light-text);
    border-left: 2px solid var(--primary-accent);
    padding-left: 1.25rem;
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
    line-height: 1.375; /* leading-snug */
    margin-bottom: 2.5rem;
    max-width: 56rem;
    margin-left: auto;
    margin-right: auto;
}

.method-box {
    background-color: var(--dark-card);
    padding: 2rem 3rem; /* p-8 md:p-12 */
    border: 1px solid var(--primary-accent);
}
@media (min-width: 768px) {
    .method-box {
        padding: 3rem;
    }
}

.method-title-inside {
    font-size: 1.5rem; /* 2xl */
    text-transform: uppercase;
    letter-spacing: 0.1em; /* tracking-widest */
    color: var(--primary-accent);
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.method-prose-group {
    margin-top: 2rem;
    margin-bottom: 0;
    line-height: 1.5;
    font-size: 1.125rem; /* lg */
    color: var(--light-text);
}


/* --- Acts Method Section (Three Columns) --- */

.section-acts-method {
    border-top: 1px solid var(--divider);
    border-bottom: 1px solid var(--divider);
    padding-top: 3rem;
    padding-bottom: 3rem;
    margin-bottom: 5rem;
}

.acts-title {
    font-size: 1.875rem; /* 3xl */
    font-weight: 700;
    color: var(--primary-accent);
    text-transform: uppercase;
    letter-spacing: 0.05em; /* tracking-wider */
    text-align: center;
    margin-bottom: 3rem;
}

.acts-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem; /* gap-10 */
    text-align: center;
    font-size: 1.25rem; /* xl */
}
@media (min-width: 768px) {
    .acts-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

.act-card {
    padding: 1.5rem;
    border: 1px solid var(--divider);
    cursor: pointer;
    transition: border-color 0.3s;
    line-height: 1.5;
}

.act-card:hover {
    border-color: var(--primary-accent);
}

.act-number {
    font-size: 3rem; /* 5xl */
    font-weight: 800; /* extabold */
    color: var(--gold-accent);
    letter-spacing: -0.05em; /* tracking-tighter */
    margin-bottom: 1rem;
}

.act-name {
    font-size: 1.5rem; /* 2xl */
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em; /* tracking-wider */
    color: var(--light-text);
}

.act-description {
    color: var(--muted-text);
    margin-top: 1rem;
    font-size: 1.125rem; /* lg */
}


/* --- Instruments Section --- */

.section-instruments {
    padding-top: 4rem;
    padding-bottom: 4rem;
    border-bottom: 1px solid var(--divider);
    margin-bottom: 5rem;
}

.instruments-title {
    font-size: 1.875rem; /* 3xl */
    font-weight: 700;
    color: var(--gold-accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-align: center;
    margin-bottom: 2.5rem;
}

.instruments-group {
    max-width: 48rem; /* 4xl */
    margin-left: auto;
    margin-right: auto;
    font-size: 1.125rem; /* lg */
    color: var(--light-text);
}

.instruments-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem; /* gap-8 */
    font-size: 1.25rem; /* xl */
    font-weight: 700;
    text-align: center;
    padding: 0;
    list-style: none;
}
@media (min-width: 640px) {
    .instruments-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

.instrument-card {
    padding: 1.5rem;
    background-color: var(--dark-card);
    border: 1px solid rgba(var(--primary-accent), 0.5);
    transition: border-color 0.3s;
}

.instrument-card:hover {
    border-color: var(--light-text);
}

.instrument-detail {
    display: block;
    font-size: 0.875rem; /* sm */
    font-weight: 400;
    color: rgba(var(--muted-text), 0.8);
    padding-top: 0.25rem;
}

.instruments-note {
    font-size: 1.rem; /* base */
    font-style: italic;
    padding-top: 1rem;
    margin-bottom: 5rem;
    text-align: center;
    color: var(--primary-accent);
}


/* --- AIM, PRACTICE, EXPECT, ULTIMATE AIM --- */

.section-aims-practice {
    margin-top: 2.5rem; /* pt-10 */
}

.vertical-spacing {
    margin-bottom: 2.5rem;
}

/* AIM Block */
.aim-section-top {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
    max-width: 56rem; /* 4xl */
    margin-bottom: 4rem;
}

.aim-title-main {
    font-size: 1.875rem; /* 3xl */
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--primary-accent);
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--divider);
    padding-bottom: 0.75rem;
    font-weight: 700;
}

.aim-prose {
    font-size: 1.25rem; /* xl */
    font-style: italic;
    font-weight: 300;
    color: var(--light-text);
    padding: 2rem;
    border: 2px solid var(--primary-accent);
    background-color: rgba(var(--dark-card), 0.75);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
}

/* Practice and Expect Grid */
.practice-expect-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 5rem 5rem; /* gap-x-20 gap-y-12 */
    margin-top: 0;
}
@media (min-width: 768px) {
    .practice-expect-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

/* Practice & Expect Common Titles */
.practice-title, .expect-title {
    font-size: 1.5rem; /* 2xl */
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--gold-accent);
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--divider);
    padding-bottom: 0.75rem;
    font-weight: 700;
}

/* Practice List */
.practice-list {
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: 1.125rem; /* lg */
    color: var(--light-text);
}

.practice-item {
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--divider);
    margin-bottom: 0.75rem;
}

.practice-item-strong {
    color: var(--primary-accent);
}

/* Expect List */
.expect-list {
    list-style: disc;
    padding-left: 1.25rem; /* pl-5 */
    margin: 0;
    font-size: 1.125rem; /* lg */
    color: var(--light-text);
    line-height: 1.6;
}

.expect-list li {
    margin-bottom: 0.5rem;
}

/* Ultimate Aim */
.ultimate-aim-group {
    grid-column: 1 / -1; /* md:col-span-2 */
    text-align: center;
    padding-top: 4rem;
}

.ultimate-aim-box {
    margin-left: auto;
    margin-right: auto;
    max-width: 42rem; /* max-w-2xl */
    padding: 2.5rem;
    border: 4px solid var(--primary-accent);
    background-color: rgba(var(--dark-card), 0.75);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

.ultimate-aim-title {
    font-size: 1.875rem; /* 3xl */
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--gold-accent);
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.ultimate-aim-list {
    padding: 0 1.5rem;
    margin: 0;
    font-size: 1.5rem; /* 2xl */
    font-style: italic;
    color: var(--light-text);
    line-height: 1.5;
}

.ultimate-aim-list li {
    margin-bottom: 1rem;
}


/* --- Physics & Friction Section --- */

.section-physics-friction {
    margin-top: 4rem; /* mt-16 */
    border-top: 2px solid rgba(var(--primary-accent), 0.5);
    padding-top: 4rem; /* py-16 */
    padding-bottom: 4rem;
    margin-bottom: 0;
}

.physics-main-title {
    text-align: center;
    letter-spacing: 0.05em;
    color: var(--primary-accent);
    margin-bottom: 4rem;
}

.physics-subtitle {
    font-size: 1.25rem; /* xl */
    font-weight: 400;
    display: block;
    margin-bottom: 0.25rem;
}

.physics-title-main {
    font-size: 2.25rem; /* 4xl */
    font-weight: 700;
    text-transform: uppercase;
    display: block;
    color: var(--gold-accent);
}

.physics-friction-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}
@media (min-width: 768px) {
    .physics-friction-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

.physics-card, .friction-card {
    background-color: rgba(var(--dark-card), 0.5);
    padding: 2rem;
    border: 1px solid var(--divider);
    font-size: 1.125rem; /* xl */
    line-height: 1.6; /* leading-relaxed */
    color: var(--light-text);
}

.physics-card-title, .friction-card-title {
    font-size: 1.875rem; /* 3xl */
    font-weight: 700;
    color: var(--gold-accent);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--divider);
    padding-bottom: 0.5rem;
}

.physics-card-content p, .friction-card-content p {
    margin-bottom: 1.5rem;
}

.physics-card-quote {
    font-style: italic;
    color: var(--primary-accent);
    font-weight: 300;
    font-size: 1rem; /* lg */
    margin-top: 1rem;
}

.physics-card-note {
    margin-top: 1.5rem;
}

.friction-card-note {
    margin-top: 1.5rem;
}


/* --- Call to Action Button --- */

.section-call-to-action {
    text-align: center;
    margin-top: 4rem;
}

.cta-button {
    display: inline-block;
    padding: 1.5rem 4rem; /* px-16 py-6 */
    font-size: 1.5rem; /* 2xl */
    font-weight: 700;
    text-transform: uppercase;
    border-radius: 0;
    letter-spacing: 0.05em;
    transition: all 0.3s;
    background-color: var(--light-text);
    color: var(--dark-bg);
    border: 2px solid var(--light-text);
    cursor: pointer;
}

.cta-button:hover {
    background-color: var(--dark-bg);
    color: var(--light-text);
    border-color: var(--primary-accent);
}

.cta-button:focus {
    outline: none;
    box-shadow: 0 0 0 4px rgba(var(--primary-accent), 0.5);
}


/* --- Footer --- */

.main-footer {
    background-color: var(--dark-card);
    padding-top: 2.5rem;
    padding-bottom: 2.5rem;
    margin-top: 6rem;
}

.footer-text, .footer-text-copyright {
    max-width: 72rem;
    margin-left: auto;
    margin-right: auto;
    padding-left: 3rem;
    padding-right: 3rem;
    text-align: center;
    font-size: 1.25rem; /* xl */
    letter-spacing: 0.05em;
    color: var(--muted-text);
}

.footer-text-copyright {
    margin-top: 0.5rem;
}

/* --- Contact Page Styles (Form) --- */

.contact-page-container {
    margin-bottom: 3rem;
    max-width: 56rem; /* max-w-4xl */
    margin-left: auto;
    margin-right: auto;
}

.contact-back-button {
    font-size: 1.25rem; /* xl */
    font-weight: 700;
    color: var(--primary-accent);
    transition: color 0.2s;
    display: flex;
    align-items: center;
    margin-bottom: 3rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.contact-back-button:hover {
    color: var(--light-text);
}

.contact-back-icon {
    width: 1.5rem;
    height: 1.5rem;
    margin-right: 0.75rem;
}

.contact-form-wrapper {
    background-color: var(--dark-card);
    padding: 2rem 3rem; /* p-8 md:p-12 */
    border: 1px solid var(--primary-accent);
    margin-left: auto;
    margin-right: auto;
}
@media (min-width: 768px) {
    .contact-form-wrapper {
        padding: 3rem;
    }
}

.contact-form-title {
    font-size: 2.25rem; /* 4xl */
    font-weight: 700;
    color: var(--primary-accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 2rem;
    text-align: center;
}

.contact-form-group {
    margin-top: 2.5rem;
    margin-bottom: 0;
    line-height: 1.5;
}

/* Form Fieldset and Inputs */
.form-fieldset {
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--divider);
    border-top: none;
    border-left: none;
    border-right: none;
    margin-top: 0;
}
.form-fieldset-no-border {
    margin-bottom: 2.5rem;
    padding-bottom: 0;
    border: none;
    margin-top: 0;
}

.form-legend {
    font-size: 1.875rem; /* 3xl */
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--gold-accent);
}

.form-label {
    display: block;
    font-size: 1.5rem; /* 2xl */
    color: var(--light-text);
    margin-bottom: 0.5rem;
}

.form-label-top-padding {
    display: block;
    font-size: 1.5rem;
    color: var(--light-text);
    padding-top: 0.5rem;
    margin-bottom: 0.5rem;
}

.form-label-border-top {
    border-top: 1px solid var(--divider);
    padding-top: 1rem;
}

.form-input, .form-select, .form-textarea {
    width: 100%;
    font-size: 1.25rem; /* xl */
    padding: 0.75rem;
    background-color: var(--dark-bg);
    color: var(--light-text);
    border: 1px solid var(--primary-accent);
    border-radius: 0;
    outline: none;
    margin-bottom: 1.5rem;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
    box-shadow: 0 0 0 2px var(--light-text);
    border-color: var(--light-text);
}

.form-textarea {
    min-height: 4rem;
    resize: vertical;
}

.form-grid-two {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}
@media (min-width: 768px) {
    .form-grid-two {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

/* Price Chart */
.price-chart-box {
    background-color: var(--dark-bg);
    padding: 1.5rem;
    border: 1px solid var(--primary-accent);
    margin-bottom: 2rem;
}

.price-chart-title {
    font-size: 1.5rem; /* 2xl */
    font-weight: 700;
    color: var(--gold-accent);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.price-chart-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    font-size: 1.25rem; /* xl */
}
@media (min-width: 640px) {
    .price-chart-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

.price-type-header {
    font-weight: 700;
    color: var(--primary-accent);
    border-bottom: 1px solid var(--divider);
    padding-bottom: 0.5rem;
    margin-bottom: 0.5rem;
}

.price-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.price-list li {
    margin-bottom: 0.25rem;
}

.price-value {
    color: var(--light-text);
}

/* Policies/Checklist */
.form-policy-note {
    padding-top: 1rem;
    padding-bottom: 1rem;
    border-top: 1px solid var(--divider);
    border-bottom: 1px solid var(--divider);
    font-size: 1.125rem; /* lg */
    font-style: italic;
    color: var(--muted-text);
    margin-bottom: 1.5rem;
}

.form-checklist-group {
    padding-top: 1rem;
    font-size: 1.25rem; /* xl */
    margin-bottom: 1rem;
}

.form-checklist-title {
    font-size: 1.5rem; /* 2xl */
    color: var(--primary-accent);
    font-weight: 700;
    margin-bottom: 1rem;
}

.form-checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
    margin-bottom: 1rem;
}

.form-checkbox {
    margin-top: 0.5rem;
    height: 1.25rem;
    width: 1.25rem;
    accent-color: var(--primary-accent);
    background-color: var(--dark-bg);
    border: 1px solid var(--primary-accent);
}

.form-submit-center {
    padding-top: 2rem;
    text-align: center;
}

.cta-button-large {
    width: 100%;
    padding: 1.5rem 4rem;
    font-size: 1.5rem;
    font-weight: 700;
    text-transform: uppercase;
    border-radius: 0;
    letter-spacing: 0.05em;
    transition: all 0.3s;
    background-color: var(--light-text);
    color: var(--dark-bg);
    border: 2px solid var(--light-text);
    cursor: pointer;
}
@media (min-width: 768px) {
    .cta-button-large {
        width: auto;
    }
}

.cta-button-large:hover {
    background-color: var(--dark-bg);
    color: var(--light-text);
    border-color: var(--primary-accent);
}

.cta-button-large:focus {
    outline: none;
    box-shadow: 0 0 0 4px rgba(var(--primary-accent), 0.5);
}


/* --- Act Detail Page Styles --- */

.act-details-group {
    max-width: 56rem; /* max-w-4xl */
    margin-left: auto;
    margin-right: auto;
}

.act-detail-box {
    background-color: var(--dark-card);
    padding: 2rem 3rem;
    border: 1px solid var(--primary-accent);
    margin-bottom: 2rem;
}
@media (min-width: 768px) {
    .act-detail-box {
        padding: 3rem;
    }
}

.act-detail-number {
    font-size: 3rem; /* 5xl */
    font-weight: 800;
    color: var(--gold-accent);
    letter-spacing: -0.05em;
    margin-bottom: 1rem;
}

.act-detail-title {
    font-size: 1.3rem; /* 4xl */
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--light-text);
    border-bottom: 1px solid var(--divider);
    padding-bottom: 1rem;
    margin-bottom: 2rem;
}

.act-detail-content {
    font-size: 1.5rem; /* 2xl */
    color: var(--light-text);
    margin-bottom: 0;
    line-height: 1.5;
}

.act-detail-content p {
    margin-bottom: 1.5rem;
}

.act-detail-intro {
    font-size: 1.875rem; /* 3xl */
    font-weight: 600;
    color: var(--primary-accent);
    padding-top: 1rem;
}


/* --- Modal Styles --- */

.modal-overlay {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background-color: rgba(var(--dark-bg), 0.8);
    align-items: center;
    justify-content: center;
    z-index: 50;
}
.modal-hidden {
    display: none;
}
.modal-overlay.flex {
    display: flex;
}

.modal-content {
    background-color: var(--dark-card);
    border: 4px solid var(--primary-accent);
    padding: 2rem 3rem;
    width: 100%;
    max-width: 32rem; /* max-w-lg */
    margin: 0;
    line-height: 1.5;
}
@media (min-width: 768px) {
    .modal-content {
        padding: 3rem;
    }
}

.modal-title {
    font-size: 2.25rem; /* 4xl */
    font-weight: 700;
    color: var(--gold-accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1.5rem;
}

.modal-message {
    font-size: 1.25rem; /* xl */
    color: var(--light-text);
    margin-bottom: 1.5rem;
}

.modal-button {
    display: block;
    width: 100%;
    padding: 0.75rem 1.5rem; /* px-6 py-3 */
    font-size: 1.5rem; /* 2xl */
    font-weight: 700;
    text-transform: uppercase;
    border-radius: 0;
    letter-spacing: 0.05em;
    transition: background-color 0.2s;
    background-color: var(--primary-accent);
    color: var(--dark-bg);
    border: none;
    cursor: pointer;
}

.modal-button:hover {
    background-color: var(--light-text);
}