:root {
    --arthrit-bg: #FAFAFC;
    --arthrit-surface: #FFFFFF;
    --arthrit-tone: #2D3250;
    --arthrit-tone-hover: #424769;
    --arthrit-ink: #1A1A24;
    --arthrit-accent: #FF6B6B;
    --arthrit-accent-dark: #C44DFF;
    --arthrit-gradient: linear-gradient(135deg, #FF6B6B 0%, #C44DFF 100%);
    --arthrit-gradient-hover: linear-gradient(135deg, #FF5252 0%, #B030E6 100%);
    
    --font-display: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    
    --p-normal: 10dvh;
    --rad-soft: 16px;
    --shadow-deep: 0 15px 35px rgba(0, 0, 0, 0.15);
    --shadow-elevated: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-text: 0 2px 10px rgba(0, 0, 0, 0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-body);
}

body {
    background-color: var(--arthrit-bg);
    color: var(--arthrit-ink);
    line-height: 1.6;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* Typography Constraints */
.main-headline-display {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 4rem);
    text-transform: uppercase;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.sub-headline-display {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 3.5vw, 2.5rem);
    text-transform: uppercase;
    font-weight: 700;
    margin-bottom: 2rem;
}

.light-theme-text { color: #fff; }
.dark-theme-text { color: var(--arthrit-ink); }
.centered-align { text-align: center; }

/* Bounds Layer */
.bounds-limit {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* Reusable Action triggers */
.action-trigger-element {
    display: inline-block;
    background: var(--arthrit-gradient);
    color: #fff;
    font-weight: 600;
    padding: 1rem 2.5rem;
    border-radius: var(--rad-soft);
    border: none;
    cursor: pointer;
    text-transform: uppercase;
    box-shadow: var(--shadow-elevated);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

.action-trigger-element:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-deep);
}

.action-trigger-solid-dark {
    display: inline-block;
    background: var(--arthrit-ink);
    color: #fff;
    font-weight: 600;
    padding: 1rem 2.5rem;
    border-radius: var(--rad-soft);
    text-transform: uppercase;
    transition: background 0.3s ease;
}

.action-trigger-solid-dark:hover {
    background: var(--arthrit-tone);
}

.full-width-trigger {
    width: 100%;
    margin-top: 1rem;
}

/* HEADER SETTINGS */
.top-navigation-zone {
    background: var(--arthrit-gradient);
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-elevated);
    padding: 1rem 0;
}

.nav-flex-layout {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand-identity-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.25rem;
    text-transform: uppercase;
}

.links-collection-area {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.links-collection-area a {
    font-weight: 600;
    position: relative;
}

.links-collection-area a.active-route::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background: #fff;
}

/* Mobile Nav */
.hamburger-icon-label {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger-line {
    width: 25px;
    height: 3px;
    background: #fff;
    border-radius: 3px;
}

@media (max-width: 768px) {
    .hamburger-icon-label {
        display: flex;
    }
    .links-collection-area {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--arthrit-tone);
        flex-direction: column;
        padding: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }
    .links-collection-area a {
        padding: 1rem;
        width: 100%;
        text-align: center;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    .mobile-checkbox-hack:checked ~ .links-collection-area {
        max-height: 300px;
    }
}

/* HERO SECTION */
.intro-canvas-area {
    min-height: 90vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    color: #fff;
    text-align: center;
    padding: calc(var(--p-normal) * 1.5) 0 var(--p-normal) 0;
}

.intro-content-align {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 4rem;
}

.intro-description-paragraph {
    font-size: 1.2rem;
    max-width: 700px;
    margin-bottom: 2rem;
    text-shadow: var(--shadow-text);
}

/* Stats Counter Flow */
.mobility-stats-wrap {
    display: flex;
    gap: 3rem;
    margin-top: 4rem;
    flex-wrap: wrap;
    justify-content: center;
}

.stat-figure-box {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(8px);
    padding: 1.5rem 2.5rem;
    border-radius: var(--rad-soft);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.stat-amount {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 900;
}

.stat-caption {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.trust-strip-zone {
    width: 100%;
    padding: 1.5rem 0;
    background: rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(4px);
    margin-top: auto;
}

.flex-trust-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.trust-text-item {
    font-weight: 600;
    font-size: 1.1rem;
}

/* SCROLL TRACK CONTENT */
.insights-scroll-domain {
    position: relative;
    padding: var(--p-normal) 0;
}

.insights-bg-underlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.relative-layer {
    z-index: 2;
}

.horizontal-knowledge-track {
    display: flex;
    gap: 2rem;
}

.track-item-frame {
    flex: 1;
    background: var(--arthrit-surface);
    padding: 2.5rem;
    border-radius: var(--rad-soft);
    box-shadow: var(--shadow-deep);
}

.track-icon {
    margin-bottom: 1.5rem;
}

.track-item-heading {
    font-family: var(--font-display);
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--arthrit-ink);
}

.track-item-description {
    color: var(--arthrit-tone);
}

@media (max-width: 768px) {
    .horizontal-knowledge-track {
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        padding-bottom: 1rem;
    }
    .track-item-frame {
        flex: 0 0 85%;
        scroll-snap-align: center;
    }
}

/* HABIT GRID (FEATURES) */
.habit-grid-area {
    padding: var(--p-normal) 0;
}

.four-items-layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.habit-grid-item {
    background: var(--arthrit-surface);
    padding: 2.5rem;
    border-radius: var(--rad-soft);
    box-shadow: var(--shadow-elevated);
    transition: background 0.4s ease, transform 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.gradient-icon-circle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--arthrit-gradient);
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
    margin-bottom: 1.5rem;
}

.gradient-icon-circle svg {
    width: 30px;
    height: 30px;
}

.habit-item-heading {
    font-family: var(--font-display);
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--arthrit-ink);
    transition: color 0.4s ease;
}

.habit-item-description {
    color: var(--arthrit-tone);
    transition: color 0.4s ease;
}

.habit-grid-item:hover {
    background: var(--arthrit-gradient);
    transform: translateY(-5px);
}

.habit-grid-item:hover .habit-item-heading,
.habit-grid-item:hover .habit-item-description {
    color: #fff;
}

/* PROCESS STRIP (How it works) */
.process-steps-domain {
    background: var(--arthrit-surface);
    padding: var(--p-normal) 0;
}

.horizontal-process-track {
    display: flex;
    justify-content: space-between;
    position: relative;
    margin-top: 3rem;
}

.process-step-item {
    flex: 1;
    text-align: center;
    position: relative;
    padding: 0 1rem;
    z-index: 2;
}

.horizontal-process-track::before {
    content: '';
    position: absolute;
    top: 30px;
    left: 10%;
    right: 10%;
    height: 3px;
    background: var(--arthrit-tone-hover);
    z-index: 1;
}

.step-number-circle {
    width: 60px;
    height: 60px;
    background: var(--arthrit-gradient);
    color: #fff;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 900;
    margin: 0 auto 1.5rem;
    position: relative;
    z-index: 2;
    box-shadow: 0 0 0 8px var(--arthrit-surface);
}

.step-title-text {
    font-family: var(--font-display);
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--arthrit-ink);
}

.step-desc-text {
    font-size: 0.95rem;
    color: var(--arthrit-tone);
}

@media (max-width: 768px) {
    .horizontal-process-track {
        flex-direction: column;
        gap: 3rem;
    }
    .horizontal-process-track::before {
        left: 50%;
        top: 0;
        bottom: 0;
        width: 3px;
        height: 100%;
        transform: translateX(-50%);
    }
}

/* CTA STRIP */
.action-summon-strip {
    background: var(--arthrit-gradient);
    padding: var(--p-normal) 0;
}

.invoke-flex-layout {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.summon-headline-display {
    font-family: var(--font-display);
    color: #fff;
    font-size: clamp(1.8rem, 4vw, 3rem);
    max-width: 60%;
}

@media (max-width: 768px) {
    .invoke-flex-layout {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }
    .summon-headline-display {
        max-width: 100%;
    }
}

/* COMMON FOOTER */
.bottom-information-zone {
    background: var(--arthrit-ink);
    color: #fff;
    padding: calc(var(--p-normal) * 0.8) 0;
    text-align: center;
}

.footer-brand-wrap {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
}

.footer-links-collection {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.footer-links-collection a {
    color: #ccc;
    transition: color 0.3s;
}

.footer-links-collection a:hover {
    color: #fff;
}

.educational-disclaimer-text {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.6);
    margin-bottom: 1rem;
}

.copyright-text-display {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.4);
}

/* EXPERT PAGE */
.minimal-intro-canvas {
    padding: var(--p-normal) 0;
    color: #fff;
    text-align: center;
}

.mentor-bio-domain {
    padding: var(--p-normal) 0;
}

.bio-flex-split {
    display: flex;
    gap: 4rem;
    align-items: center;
}

.bio-image-frame {
    flex: 0 0 40%;
}

.bio-visual-element {
    border-radius: var(--rad-soft);
    box-shadow: var(--shadow-deep);
    object-fit: cover;
    width: 100%;
}

.bio-text-frame {
    flex: 0 0 55%;
}

.bio-paragraph-text {
    margin-bottom: 1.25rem;
    font-size: 1.1rem;
    color: var(--arthrit-tone);
}

.bio-highlights-group {
    margin-top: 1.5rem;
}

.bio-highlights-group li {
    position: relative;
    padding-left: 2rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.bio-highlights-group li::before {
    content: '►';
    position: absolute;
    left: 0;
    color: var(--arthrit-accent);
}

@media (max-width: 768px) {
    .bio-flex-split {
        flex-direction: column;
    }
}

.mentor-figures-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    padding-bottom: var(--p-normal);
}

.figure-card-item {
    background: var(--arthrit-surface);
    padding: 2rem;
    border-radius: var(--rad-soft);
    text-align: center;
    box-shadow: var(--shadow-elevated);
}

.figure-large-number {
    display: block;
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 900;
    background: var(--arthrit-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.figure-caption-text {
    font-weight: 600;
    color: var(--arthrit-tone);
    text-transform: uppercase;
}

/* RESERVE PAGE */
.reservation-domain {
    padding: var(--p-normal) 0;
}

.two-columns-layout {
    display: flex;
    gap: 4rem;
    align-items: flex-start;
}

.info-sticky-zone {
    flex: 1;
    position: sticky;
    top: 100px;
}

.decorative-large {
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    background: var(--arthrit-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.trust-assurance-text {
    font-size: 1.15rem;
    margin-bottom: 2.5rem;
    color: var(--arthrit-tone);
}

.mail-anchor-text {
    font-weight: 600;
    color: var(--arthrit-accent);
    text-decoration: underline;
}

.educational-perks-stack {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.perk-card-box {
    display: flex;
    gap: 1.5rem;
    background: var(--arthrit-surface);
    padding: 1.5rem;
    border-radius: var(--rad-soft);
    box-shadow: var(--shadow-elevated);
}

.perk-icon-wrap {
    color: var(--arthrit-accent-dark);
}

.perk-heading-text {
    font-family: var(--font-display);
    font-size: 1.2rem;
    margin-bottom: 0.25rem;
}

.perk-desc-text {
    font-size: 0.95rem;
    color: var(--arthrit-tone);
    margin-bottom: 1rem;
}

.perk-bullet-collection li {
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.4rem;
}

.perk-bullet-collection li span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--arthrit-accent);
}

.form-interaction-zone {
    flex: 0 0 450px;
    background: var(--arthrit-surface);
    padding: 3rem 2.5rem;
    border-radius: var(--rad-soft);
    box-shadow: var(--shadow-deep);
}

.form-headline-text {
    font-family: var(--font-display);
    font-size: 1.8rem;
    margin-bottom: 2rem;
}

.input-field-wrap {
    margin-bottom: 1.5rem;
}

.input-label-text {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--arthrit-ink);
}

.text-entry-box {
    width: 100%;
    padding: 1rem;
    border: 2px solid #EEE;
    border-radius: 8px;
    font-family: var(--font-body);
    transition: border-color 0.3s;
}

.text-entry-box:focus {
    outline: none;
    border-color: var(--arthrit-accent);
}

.area-entry-box {
    resize: vertical;
}

.input-checkbox-wrap {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}

.checkbox-element {
    margin-top: 0.3rem;
}

.checkbox-label-text {
    font-size: 0.9rem;
    color: var(--arthrit-tone);
}

.checkbox-label-text a {
    color: var(--arthrit-accent);
    text-decoration: underline;
}

@media (max-width: 992px) {
    .two-columns-layout {
        flex-direction: column;
    }
    .info-sticky-zone {
        position: relative;
        top: 0;
    }
    .form-interaction-zone {
        width: 100%;
        flex: auto;
    }
}

/* FAQ ACCORDION */
.questions-accordion-domain {
    padding-top: var(--p-normal);
}

.accordion-collection {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.accordion-item-box {
    background: var(--arthrit-surface);
    border-radius: var(--rad-soft);
    box-shadow: var(--shadow-elevated);
    padding: 1.5rem;
}

.accordion-summary-text {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.1rem;
    cursor: pointer;
    list-style: none; /* remove default arrow */
    position: relative;
    padding-right: 2rem;
}

.accordion-summary-text::-webkit-details-marker {
    display: none;
}

.accordion-summary-text::after {
    content: '+';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
    color: var(--arthrit-accent);
}

.accordion-item-box[open] .accordion-summary-text::after {
    content: '−';
}

.accordion-content-text {
    margin-top: 1rem;
    color: var(--arthrit-tone);
}

/* LEGAL PAGES */
.legal-document-domain {
    padding: var(--p-normal) 0;
}

.document-text-flow p {
    margin-bottom: 1.25rem;
    font-size: 1.05rem;
    color: var(--arthrit-tone);
}

/* THANK YOU PAGE */
.thank-you-domain {
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--p-normal) 0;
}

/* COOKIE BANNER */
.cookie-notice-overlay {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: var(--arthrit-ink);
    color: #fff;
    padding: 1.5rem 0;
    z-index: 9999;
}

.flex-between-rule {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.cookie-paragraph-text {
    font-size: 0.95rem;
}

.cookie-action-group {
    display: flex;
    gap: 1rem;
}

.small-trigger {
    padding: 0.5rem 1.5rem;
    font-size: 0.9rem;
}

.alt-trigger {
    background: transparent;
    border: 1px solid rgba(255,255,255,0.5);
    box-shadow: none;
}

.alt-trigger:hover {
    background: rgba(255,255,255,0.1);
}

@media (max-width: 768px) {
    .flex-between-rule {
        flex-direction: column;
        text-align: center;
    }
}