/* RESET & BASE */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    background-color: var(--gluco-space);
    color: var(--gluco-text);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

/* CSS VARIABLES - DARK CORPORATE GRADIENT */
:root {
    --gluco-space: #0B0E14;
    --gluco-surface: #151A25;
    --gluco-surface-elevated: #1F2636;
    --gluco-text: #F3F4F6;
    --gluco-text-mute: #9CA3AF;
    --gluco-grad-main: linear-gradient(135deg, #00C6FF 0%, #0072FF 100%);
    --gluco-grad-hover: linear-gradient(135deg, #0072FF 0%, #00C6FF 100%);
    --gluco-border-soft: 16px;
    --gluco-shadow-deep: 0 20px 40px rgba(0,0,0,0.5), 0 8px 16px rgba(0,0,0,0.3);
    --gluco-spacing-norm: 10dvh;
    --font-head: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    --transition-speed: 0.3s ease;
}

/* TYPOGRAPHY */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-head);
    font-weight: 700;
    text-transform: uppercase;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--gluco-text);
}
a { text-decoration: none; color: inherit; transition: var(--transition-speed); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

/* LAYOUT UTILS */
.gluco-inner-bounds { width: 90%; max-width: 1200px; margin: 0 auto; }
.gluco-flex-row { display: flex; flex-wrap: wrap; }
.gluco-flex-center { display: flex; justify-content: center; align-items: center; }
.gluco-page-segment { padding: var(--gluco-spacing-norm) 0; position: relative; }

/* BUTTONS */
.gluco-action-trigger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2.5rem;
    background: var(--gluco-grad-main);
    color: #fff;
    font-weight: 600;
    font-family: var(--font-body);
    border-radius: var(--gluco-border-soft);
    border: none;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: var(--gluco-shadow-deep);
    transition: var(--transition-speed);
}
.gluco-action-trigger:hover {
    background: var(--gluco-grad-hover);
    transform: translateY(-3px);
}
.gluco-action-dark {
    background: var(--gluco-surface-elevated);
    border: 1px solid rgba(255,255,255,0.1);
}
.gluco-action-dark:hover {
    background: #000;
    border-color: #00C6FF;
}

/* HEADER (PRESET F: GRADIENT, DROP SHADOW) */
.gluco-top-bar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--gluco-grad-main);
    box-shadow: 0 4px 20px rgba(0,0,0,0.4);
    padding: 1rem 0;
}
.gluco-top-bar .gluco-inner-bounds {
    justify-content: space-between;
    align-items: center;
}
.gluco-brand-mark {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-head);
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
    text-transform: uppercase;
}
.gluco-brand-mark svg { width: 32px; height: 32px; fill: #fff; }
.gluco-nav-links { display: flex; gap: 2rem; align-items: center; }
.gluco-nav-links a {
    color: #fff;
    font-weight: 500;
    position: relative;
    padding-bottom: 5px;
}
.gluco-nav-links a::after {
    content: ''; position: absolute; left: 0; bottom: 0; wwidth: 0;
    height: 2px; background: #fff; width: 0%; transition: width 0.3s;
}
.gluco-nav-links a:hover::after { width: 100%; }
.gluco-burger { display: none; cursor: pointer; flex-direction: column; gap: 5px; }
.gluco-burger span { width: 25px; height: 3px; background: #fff; transition: 0.3s; }

@media(max-width: 768px) {
    .gluco-burger { display: flex; }
    .gluco-nav-links {
        position: absolute; top: 100%; left: 0; width: 100%; background: #151A25;
        flex-direction: column; align-items: flex-start; padding: 2rem; gap: 1.5rem;
        display: none; box-shadow: var(--gluco-shadow-deep);
    }
    #gluco-mob-toggle:checked ~ .gluco-nav-links { display: flex; }
}

/* HERO (INDEX PRESET F) */
.gluco-lead-zone {
    min-height: 90vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    text-align: center;
    background-image: url('img/bg.webp');
    background-size: cover;
    background-position: center;
}
.gluco-lead-zone::before {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(to bottom, rgba(11,14,20,0.8), rgba(0,198,255,0.4));
    z-index: 1;
}
.gluco-lead-content { position: relative; z-index: 2; padding-top: 4rem; }
.gluco-lead-content h1 { font-size: clamp(2.5rem, 5vw, 5rem); text-shadow: 0 4px 10px rgba(0,0,0,0.5); }
.gluco-lead-content p { font-size: 1.25rem; max-width: 700px; margin: 0 auto 2.5rem auto; color: #E5E7EB; }

/* ANIMATED COUNTERS */
.gluco-stat-row {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 4rem;
    position: relative;
    z-index: 2;
    flex-wrap: wrap;
}
.gluco-stat-item {
    background: rgba(21, 26, 37, 0.7);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: var(--gluco-border-soft);
    min-width: 200px;
    border: 1px solid rgba(255,255,255,0.1);
    box-shadow: var(--gluco-shadow-deep);
}
.gluco-stat-num { font-size: 3rem; font-family: var(--font-head); font-weight: 700; color: #00C6FF; }
.gluco-stat-label { font-size: 1rem; color: var(--gluco-text-mute); text-transform: uppercase; letter-spacing: 1px; }

/* TRUST STRIP */
.gluco-trust-strip {
    background: var(--gluco-surface); border-top: 1px solid rgba(255,255,255,0.05);
    padding: 2rem 0; position: relative; z-index: 2;
}
.gluco-trust-strip .gluco-inner-bounds { display: flex; justify-content: space-around; flex-wrap: wrap; opacity: 0.6; }
.gluco-trust-strip svg { height: 40px; fill: currentColor; }

/* CONTENT TRACK (MOBILE SCROLL, DESKTOP GRID) */
.gluco-track-wrap { background: url('img/bg2.webp') center/cover; position: relative; }
.gluco-track-wrap::after { content:''; position:absolute; inset:0; background: rgba(11,14,20,0.85); z-index:1; }
.gluco-track-inner { position: relative; z-index: 2; }
.gluco-track-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; padding-top: 2rem; }
.gluco-track-card {
    background: var(--gluco-surface); padding: 2.5rem; border-radius: var(--gluco-border-soft);
    box-shadow: var(--gluco-shadow-deep); border: 1px solid rgba(255,255,255,0.05);
}
.gluco-track-card svg { width: 48px; height: 48px; fill: url(#grad-id); margin-bottom: 1.5rem; }
@media(max-width: 992px) {
    .gluco-track-grid {
        display: flex; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 1rem;
    }
    .gluco-track-card { min-width: 85vw; scroll-snap-align: center; }
}

/* FEATURES (HOVER COLOR FLIP) */
.gluco-benefit-mesh { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; }
.gluco-benefit-tile {
    background: var(--gluco-surface); padding: 3rem; border-radius: var(--gluco-border-soft);
    transition: var(--transition-speed); border: 1px solid rgba(255,255,255,0.05); position: relative; overflow: hidden;
}
.gluco-benefit-tile::before {
    content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background: var(--gluco-grad-main); opacity: 0; transition: var(--transition-speed); z-index: 0;
}
.gluco-benefit-tile-content { position: relative; z-index: 1; }
.gluco-benefit-tile:hover { transform: translateY(-5px); box-shadow: var(--gluco-shadow-deep); border-color: transparent; }
.gluco-benefit-tile:hover::before { opacity: 1; }
.gluco-benefit-svg-wrap {
    width: 60px; height: 60px; border-radius: 50%; background: rgba(255,255,255,0.05);
    display: flex; align-items: center; justify-content: center; margin-bottom: 1.5rem;
}
.gluco-benefit-svg-wrap svg { width: 30px; height: 30px; fill: #00C6FF; }
.gluco-benefit-tile:hover .gluco-benefit-svg-wrap svg { fill: #fff; }
.gluco-benefit-tile:hover p { color: #fff; }

/* HORIZONTAL STEPPER */
.gluco-flow-zone { background: var(--gluco-surface); }
.gluco-flow-line { display: flex; justify-content: space-between; position: relative; margin-top: 3rem; }
.gluco-flow-line::before {
    content: ''; position: absolute; top: 30px; left: 0; width: 100%; height: 2px;
    background: rgba(255,255,255,0.1); z-index: 0;
}
.gluco-flow-node { position: relative; z-index: 1; width: 30%; text-align: center; }
.gluco-flow-circle {
    width: 60px; height: 60px; background: var(--gluco-space); border: 2px solid #00C6FF;
    border-radius: 50%; margin: 0 auto 1.5rem auto; display: flex; align-items: center; justify-content: center;
    font-family: var(--font-head); font-size: 1.5rem; font-weight: bold; color: #00C6FF;
}
@media(max-width: 768px) {
    .gluco-flow-line { flex-direction: column; gap: 3rem; }
    .gluco-flow-line::before { width: 2px; height: 100%; left: 30px; top: 0; }
    .gluco-flow-node { width: 100%; display: flex; align-items: flex-start; text-align: left; gap: 1.5rem; }
    .gluco-flow-circle { margin: 0; flex-shrink: 0; }
}

/* CTA STRIP PRESET F */
.gluco-cta-band { background: var(--gluco-grad-main); padding: 5dvh 0; box-shadow: inset 0 10px 20px rgba(0,0,0,0.2); }
.gluco-cta-band .gluco-inner-bounds { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 2rem; }
.gluco-cta-band h2 { margin: 0; font-size: 2.5rem; text-shadow: 0 2px 5px rgba(0,0,0,0.3); }

/* EXPERT LAYOUT */
.gluco-pro-lead { display: flex; flex-wrap: wrap; min-height: 80vh; }
.gluco-pro-pic { width: 40%; background: url('img/bg3.webp') center/cover; }
.gluco-pro-info { width: 60%; display: flex; flex-direction: column; justify-content: center; padding: 5%; background: var(--gluco-surface); }
@media(max-width: 992px) { .gluco-pro-pic, .gluco-pro-info { width: 100%; min-height: 50vh; } }

/* RESERVE LAYOUT */
.gluco-book-wrap { display: flex; flex-wrap: wrap; gap: 4rem; padding-top: 4rem; }
.gluco-book-left { width: calc(45% - 2rem); position: sticky; top: 120px; align-self: flex-start; }
.gluco-book-right { width: calc(55% - 2rem); }
.gluco-info-box { background: var(--gluco-surface); padding: 2rem; border-radius: var(--gluco-border-soft); margin-bottom: 1.5rem; border-left: 4px solid #00C6FF; }
.gluco-info-box ul { margin-top: 1rem; }
.gluco-info-box li { display: flex; align-items: center; gap: 10px; margin-bottom: 0.5rem; color: var(--gluco-text-mute); }
.gluco-info-box li::before { content: ''; width: 8px; height: 8px; border-radius: 50%; background: #0072FF; }

/* FORMS */
.gluco-form-card { background: var(--gluco-surface-elevated); padding: 3rem; border-radius: var(--gluco-border-soft); box-shadow: var(--gluco-shadow-deep); }
.gluco-field-group { margin-bottom: 1.5rem; }
.gluco-field-group label { display: block; margin-bottom: 0.5rem; color: var(--gluco-text-mute); font-size: 0.9rem; text-transform: uppercase; }
.gluco-input { width: 100%; padding: 1rem; background: var(--gluco-space); border: 1px solid rgba(255,255,255,0.1); color: #fff; border-radius: 8px; font-family: var(--font-body); outline: none; }
.gluco-input:focus { border-color: #00C6FF; }
.gluco-check-group { display: flex; gap: 10px; align-items: flex-start; margin-bottom: 2rem; font-size: 0.85rem; color: var(--gluco-text-mute); }
.gluco-check-group a { color: #00C6FF; text-decoration: underline; }

/* ACCORDION FAQ */
.gluco-faq-list { margin-top: 4rem; }
.gluco-faq-item { margin-bottom: 1rem; background: var(--gluco-surface); border-radius: 8px; overflow: hidden; }
.gluco-faq-item details { padding: 1.5rem; }
.gluco-faq-item summary { font-family: var(--font-head); font-weight: 700; font-size: 1.2rem; cursor: pointer; list-style: none; display: flex; justify-content: space-between; }
.gluco-faq-item summary::-webkit-details-marker { display: none; }
.gluco-faq-item summary::after { content: '+'; color: #00C6FF; font-size: 1.5rem; }
.gluco-faq-item details[open] summary::after { content: '-'; }
.gluco-faq-item p { margin-top: 1rem; color: var(--gluco-text-mute); }

@media(max-width: 992px) {
    .gluco-book-left, .gluco-book-right { width: 100%; position: relative; top: 0; }
}

/* FULL PAGE UTILS */
.gluco-legal-pad { padding-top: 8rem; min-height: 100vh; background: var(--gluco-space); }
.gluco-legal-pad h2 { margin-top: 2rem; }
.gluco-legal-pad p { margin-bottom: 1.5rem; color: var(--gluco-text-mute); }

/* FOOTER */
.gluco-base-bot { background: var(--gluco-surface-elevated); padding: 4rem 0 2rem 0; border-top: 1px solid rgba(255,255,255,0.05); text-align: center; }
.gluco-base-bot nav { display: flex; justify-content: center; gap: 2rem; margin: 2rem 0; flex-wrap: wrap; }
.gluco-base-bot nav a { color: var(--gluco-text-mute); font-size: 0.9rem; }
.gluco-base-bot nav a:hover { color: #00C6FF; }
.gluco-disclaimer { font-size: 0.8rem; color: rgba(255,255,255,0.3); max-width: 800px; margin: 0 auto 1rem auto; padding: 1rem; border: 1px solid rgba(255,255,255,0.05); }

/* COOKIE BANNER */
.gluco-cookie-strip {
    position: fixed; bottom: 0; left: 0; width: 100%; background: var(--gluco-surface-elevated);
    padding: 1.5rem; z-index: 9999; box-shadow: 0 -10px 30px rgba(0,0,0,0.5); border-top: 2px solid #00C6FF;
    display: none; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem;
}
.gluco-cookie-strip p { margin: 0; font-size: 0.9rem; }
.gluco-cookie-acts { display: flex; gap: 1rem; }
.gluco-cookie-btn { padding: 0.5rem 1.5rem; border: none; border-radius: 4px; cursor: pointer; font-weight: bold; }
#accept-cookie { background: #00C6FF; color: #000; }
#decline-cookie { background: transparent; border: 1px solid #fff; color: #fff; }

/* SVG GRADIENT DEF HIDER */
.hidden-svg-defs { width: 0; height: 0; position: absolute; }