:root {
    /* Color Palette - Light Theme */
    --focus-surface: #ffffff;
    --focus-sub-surface: #F4F7F6;
    --retina-ink: #1A2B2A;
    --retina-ink-light: #3D5251;
    --border-dim: #E1E8E7;
    
    /* Accents */
    --iris-pop: #2B7A78;
    --iris-pop-hover: #17504E;
    --lens-glow: #DEF2F1;
    --vision-gradient: linear-gradient(135deg, #2B7A78, #3AAFA9);

    /* Typography */
    --font-display: 'Oswald', sans-serif;
    --font-body: 'Open Sans', sans-serif;

    /* Spacing & Forms */
    --space-section: 16dvh; /* spacious */
    --shape-radius: 16px; /* soft */
    --shadow-raised: 0 8px 24px rgba(26, 43, 42, 0.08);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-body);
    color: var(--retina-ink);
    background-color: var(--focus-surface);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: var(--font-display);
    text-transform: uppercase;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--retina-ink);
}

a {
    text-decoration: none;
    color: var(--iris-pop);
    transition: color 0.3s ease;
}

a:hover {
    color: var(--iris-pop-hover);
}

/* ================= HEADER (Preset B - Light Split) ================= */
.optic-scaffold-top {
    background: var(--focus-surface);
    border-bottom: 1px solid var(--border-dim);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: box-shadow 0.3s ease;
}

.optic-scaffold-top:focus-within,
.optic-scaffold-top:hover {
    box-shadow: var(--shadow-raised);
}

.optic-top-inner {
    max-width: 1440px;
    margin: 0 auto;
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.optic-brand-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--retina-ink);
    text-transform: uppercase;
}

.optic-nav-area {
    display: flex;
    gap: 2rem;
}

.optic-nav-area a {
    color: var(--retina-ink-light);
    font-weight: 600;
    font-size: 0.95rem;
}

.optic-nav-area a:hover {
    color: var(--iris-pop);
}

.optic-hidden-check,
.optic-burger-icon {
    display: none;
}

/* ================= COMMON ELEMENTS ================= */
.optic-action-trigger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--iris-pop);
    color: var(--focus-surface);
    padding: 1rem 2rem;
    border-radius: var(--shape-radius);
    font-weight: 600;
    font-family: var(--font-body);
    border: none;
    cursor: pointer;
    transition: background 0.3s ease, transform 0.2s ease;
    text-align: center;
}

.optic-action-trigger:hover {
    background: var(--iris-pop-hover);
    color: var(--focus-surface);
    transform: translateY(-2px);
}

.optic-action-trigger.bg-invert {
    background: var(--focus-surface);
    color: var(--iris-pop);
}

.optic-action-trigger.bg-invert:hover {
    background: var(--lens-glow);
}

.align-full {
    width: 100%;
}

/* ================= INDEX: HERO (Announcement + Split) ================= */
.optic-notice-bar {
    background: var(--lens-glow);
    padding: 0.75rem 5%;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--retina-ink);
}

.vision-intro-split {
    display: flex;
    min-height: 85vh;
    background: var(--focus-sub-surface);
}

.vision-intro-words {
    width: 55%;
    padding: calc(var(--space-section) / 2) 5% calc(var(--space-section) / 2) 10%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
}

.vision-intro-words h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
}

.vision-intro-words p {
    font-size: 1.15rem;
    color: var(--retina-ink-light);
    margin-bottom: 2rem;
    max-width: 600px;
}

.vision-intro-visual {
    width: 45%;
    position: relative;
}

.vision-img-frame {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('img/bg.webp');
    background-size: cover;
    background-position: center;
}

/* ================= INDEX: CONTENT (Stripe + 3 Cols) ================= */
.sight-knowledge-zone {
    padding-bottom: var(--space-section);
}

.sight-wide-stripe {
    width: 100%;
    height: 45vh;
    background-image: url('img/bg2.webp');
    background-size: cover;
    background-position: center;
}

.sight-three-cols {
    max-width: 1440px;
    margin: 0 auto;
    padding: 4rem 5% 0;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
}

.sight-col-item {
    border-top: 3px solid var(--iris-pop);
    padding-top: 1.5rem;
}

.sight-col-item h2 {
    font-size: 1.5rem;
}

.sight-col-item p {
    color: var(--retina-ink-light);
}

/* ================= INDEX: FEATURES (Masonry) ================= */
.visual-habits-zone {
    background: var(--focus-sub-surface);
    padding: var(--space-section) 5%;
}

.visual-habits-header {
    text-align: center;
    margin-bottom: 4rem;
}

.visual-habits-header h2 {
    font-size: 2.5rem;
}

.visual-habits-masonry {
    max-width: 1440px;
    margin: 0 auto;
    columns: 3;
    column-gap: 2rem;
}

.habit-masonry-item {
    background: var(--focus-surface);
    padding: 2.5rem;
    border-radius: var(--shape-radius);
    box-shadow: var(--shadow-raised);
    break-inside: avoid;
    margin-bottom: 2rem;
}

.habit-masonry-item h3 {
    margin-top: 1.5rem;
    font-size: 1.3rem;
}

.habit-masonry-item p {
    color: var(--retina-ink-light);
}

.habit-tall {
    padding-bottom: 5rem;
}

/* ================= INDEX: HOW IT WORKS (Horizontal Track) ================= */
.optics-process-zone {
    padding: var(--space-section) 5%;
    max-width: 1440px;
    margin: 0 auto;
}

.optics-process-zone h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 4rem;
}

.optics-track {
    display: flex;
    justify-content: space-between;
    position: relative;
}

.optics-track::before {
    content: '';
    position: absolute;
    top: 24px; /* Center of circle */
    left: 0;
    right: 0;
    height: 2px;
    border-top: 2px dashed var(--border-dim);
    z-index: 1;
}

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

.optics-step-circle {
    width: 48px;
    height: 48px;
    background: var(--iris-pop);
    color: var(--focus-surface);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1.5rem;
}

.optics-step-info h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.optics-step-info p {
    color: var(--retina-ink-light);
    font-size: 0.95rem;
}

/* ================= CTA STRIP ================= */
.focus-action-strip {
    background: var(--iris-pop);
    padding: var(--space-section) 5%;
    text-align: center;
}

.focus-action-content {
    max-width: 800px;
    margin: 0 auto;
}

.focus-action-content h2 {
    color: var(--focus-surface);
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 2.5rem;
}

/* ================= EXPERT PAGE ================= */
.expert-simple-intro {
    padding: calc(var(--space-section) * 0.8) 5%;
    text-align: center;
    background: var(--focus-sub-surface);
}

.expert-simple-intro h1 {
    font-size: clamp(2.5rem, 4vw, 4rem);
    max-width: 1000px;
    margin: 0 auto 1.5rem;
}

.expert-simple-intro p {
    font-size: 1.2rem;
    color: var(--retina-ink-light);
    max-width: 700px;
    margin: 0 auto;
}

.expert-bio-split {
    display: flex;
    min-height: 60vh;
}

.expert-bio-visual {
    width: 50%;
    background-image: url('img/bg3.webp');
    background-size: cover;
    background-position: center;
}

.expert-bio-text {
    width: 50%;
    padding: 5% 8%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.expert-bio-text p {
    margin-bottom: 1.5rem;
    color: var(--retina-ink-light);
    font-size: 1.1rem;
}

.expert-metrics-row {
    display: flex;
    justify-content: space-around;
    padding: 4rem 5%;
    background: var(--focus-surface);
    border-bottom: 1px solid var(--border-dim);
    flex-wrap: wrap;
    gap: 2rem;
}

.metric-item {
    text-align: center;
}

.metric-number {
    font-family: var(--font-display);
    font-size: 3.5rem;
    color: var(--iris-pop);
    font-weight: 700;
    line-height: 1;
}

.metric-label {
    font-weight: 600;
    margin-top: 0.5rem;
    color: var(--retina-ink-light);
    text-transform: uppercase;
}

.expert-methods-zone {
    padding: var(--space-section) 5%;
    max-width: 900px;
    margin: 0 auto;
}

.expert-methods-zone h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.expert-methods-wrap {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.expert-accordion {
    background: var(--focus-sub-surface);
    border-radius: var(--shape-radius);
    overflow: hidden;
}

.expert-accordion summary {
    padding: 1.5rem 2rem;
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 600;
    text-transform: uppercase;
    cursor: pointer;
    list-style: none;
    position: relative;
    outline: none;
}

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

.expert-accordion summary::after {
    content: '+';
    position: absolute;
    right: 2rem;
    font-size: 1.5rem;
    color: var(--iris-pop);
}

.expert-accordion[open] summary::after {
    content: '-';
}

.accordion-info {
    padding: 0 2rem 1.5rem;
    color: var(--retina-ink-light);
}

/* ================= RESERVE PAGE ================= */
.booking-layout-split {
    display: flex;
    max-width: 1440px;
    margin: 0 auto;
    padding: var(--space-section) 5%;
    gap: 4rem;
}

.booking-info-wrap {
    width: 45%;
}

.booking-info-wrap h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
}

.booking-info-cards {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.info-module {
    background: var(--focus-sub-surface);
    padding: 2rem;
    border-radius: var(--shape-radius);
}

.info-module h3 {
    margin: 1rem 0 0.5rem;
}

.info-bullets {
    list-style: none;
    margin-top: 1rem;
}

.info-bullets li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--retina-ink-light);
}

.info-bullets li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 8px;
    height: 8px;
    background: var(--iris-pop);
    border-radius: 50%;
}

.booking-form-area {
    width: 55%;
}

.form-surface {
    background: var(--focus-surface);
    padding: 3rem;
    border-radius: var(--shape-radius);
    box-shadow: var(--shadow-raised);
    border: 1px solid var(--border-dim);
}

.form-surface h2 {
    font-size: 2rem;
}

.form-subtext {
    margin-bottom: 2rem;
    color: var(--retina-ink-light);
}

.optic-registry-form .input-wrap {
    margin-bottom: 1.5rem;
}

.optic-registry-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--retina-ink);
}

.optic-registry-form input[type="text"],
.optic-registry-form input[type="tel"],
.optic-registry-form textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--border-dim);
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: 1rem;
    background: var(--focus-sub-surface);
}

.optic-registry-form input:focus,
.optic-registry-form textarea:focus {
    outline: none;
    border-color: var(--iris-pop);
    box-shadow: 0 0 0 3px var(--lens-glow);
}

.check-wrap {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.check-wrap input {
    margin-top: 0.3rem;
}

.check-wrap label {
    font-weight: 400;
    font-size: 0.9rem;
    color: var(--retina-ink-light);
}

.booking-faq-zone {
    padding: 0 5% var(--space-section);
    max-width: 900px;
    margin: 0 auto;
}

.booking-faq-zone h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

/* ================= LEGAL PAGES ================= */
.legal-doc-wrap {
    padding: var(--space-section) 5%;
    max-width: 800px;
    margin: 0 auto;
    min-height: 100vh;
}

.legal-content-zone h1 {
    font-size: 3rem;
    margin-bottom: 2rem;
}

.legal-content-zone h2 {
    font-size: 2rem;
    margin-top: 3rem;
    margin-bottom: 1.5rem;
}

.legal-content-zone p {
    margin-bottom: 1.5rem;
    color: var(--retina-ink-light);
    font-size: 1.1rem;
}

/* ================= THANK YOU PAGE ================= */
.appreciation-wrap {
    min-height: calc(100vh - 80px);
    display: flex;
    align-items: center;
    justify-content: center;
    background-image: linear-gradient(rgba(244, 247, 246, 0.9), rgba(244, 247, 246, 0.9)), url('img/bg3.webp');
    background-size: cover;
    background-position: center;
    padding: 5%;
}

.appreciation-content {
    background: var(--focus-surface);
    padding: 4rem;
    border-radius: var(--shape-radius);
    box-shadow: var(--shadow-raised);
    text-align: center;
    max-width: 600px;
}

.appreciation-content h1 {
    font-size: 2.5rem;
}

.appreciation-content p {
    color: var(--retina-ink-light);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

/* ================= FOOTER ================= */
.optic-bottom-dock {
    background: var(--retina-ink);
    color: var(--focus-surface);
    padding: 4rem 5% 2rem;
}

.optic-bottom-inner {
    max-width: 1440px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 2rem;
}

.optic-bottom-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-display);
    font-size: 1.5rem;
    text-transform: uppercase;
}

.optic-disclaimer {
    color: #9CA3AF;
    font-size: 0.9rem;
    max-width: 600px;
}

.optic-bottom-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
}

.optic-bottom-links a {
    color: var(--lens-glow);
    font-size: 0.95rem;
}

.optic-copyright {
    color: #6B7280;
    font-size: 0.85rem;
    margin-top: 1rem;
}

/* ================= COOKIE BANNER ================= */
.optic-cookie-wrap {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    z-index: 9999;
    background: var(--retina-ink);
    color: var(--focus-surface);
    padding: 1.5rem 5%;
    box-shadow: 0 -4px 20px rgba(0,0,0,0.15);
}

.optic-cookie-pad {
    max-width: 1440px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.optic-cookie-pad p {
    font-size: 0.95rem;
}

.optic-cookie-actions {
    display: flex;
    gap: 1rem;
}

.cookie-btn {
    padding: 0.6rem 1.5rem;
}

.cookie-alt {
    background: transparent;
    border: 1px solid var(--focus-surface);
    padding: 0.6rem 1.5rem;
}

.cookie-alt:hover {
    background: var(--focus-surface);
    color: var(--retina-ink);
}

/* ================= RESPONSIVE ================= */
@media (max-width: 1024px) {
    .vision-intro-split, .expert-bio-split, .booking-layout-split {
        flex-direction: column;
    }
    
    .vision-intro-words, .vision-intro-visual, 
    .expert-bio-visual, .expert-bio-text,
    .booking-info-wrap, .booking-form-area {
        width: 100%;
    }
    
    .vision-intro-visual, .expert-bio-visual {
        height: 50vh;
    }
    
    .sight-three-cols {
        grid-template-columns: 1fr;
    }
    
    .visual-habits-masonry {
        columns: 2;
    }
    
    .optic-cookie-pad {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .optic-burger-icon {
        display: block;
        cursor: pointer;
        z-index: 200;
    }
    
    .optic-burger-line {
        display: block;
        width: 24px;
        height: 2px;
        background: var(--retina-ink);
        margin: 5px 0;
        transition: 0.3s;
    }
    
    .optic-nav-area {
        position: fixed;
        top: 0;
        right: -100%;
        width: 250px;
        height: 100vh;
        background: var(--focus-surface);
        flex-direction: column;
        padding-top: 80px;
        padding-left: 2rem;
        box-shadow: -5px 0 15px rgba(0,0,0,0.1);
        transition: 0.3s ease;
    }
    
    #optic-mobile-trigger:checked ~ .optic-nav-area {
        right: 0;
    }
    
    #optic-mobile-trigger:checked ~ .optic-burger-icon .optic-burger-line:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 5px);
    }
    
    #optic-mobile-trigger:checked ~ .optic-burger-icon .optic-burger-line:nth-child(2) {
        opacity: 0;
    }
    
    #optic-mobile-trigger:checked ~ .optic-burger-icon .optic-burger-line:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -5px);
    }
    
    .visual-habits-masonry {
        columns: 1;
    }
    
    .optics-track {
        flex-direction: column;
        gap: 2rem;
    }
    
    .optics-track::before {
        left: 24px;
        top: 0;
        bottom: 0;
        width: 2px;
        height: 100%;
        border-top: none;
        border-left: 2px dashed var(--border-dim);
    }
    
    .optics-step {
        display: flex;
        text-align: left;
        gap: 1.5rem;
    }
    
    .optics-step-circle {
        margin: 0;
        flex-shrink: 0;
    }
    
    .optic-notice-bar {
        flex-direction: column;
        text-align: center;
        padding: 1rem 5%;
    }
    
    .form-surface {
        padding: 1.5rem;
    }
}