/* === VARIABLES === */
:root {
    --bg: #0a0a0b;
    --bg-elevated: #141416;
    --bg-subtle: #1c1c1f;
    --text-primary: #f5f5f7;
    --text-secondary: #a1a1a6;
    --text-muted: #6e6e73;
    --accent: #c8a456;
    --accent-hover: #dab96a;
    --border: #2a2a2e;
    --radius: 12px;
    --radius-sm: 8px;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --mono: 'JetBrains Mono', monospace;
    --max-width: 1100px;
    --max-narrow: 720px;
}

/* === RESET === */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-primary);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

/* === LAYOUT === */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.container--narrow {
    max-width: var(--max-narrow);
}

.section {
    padding: 5rem 0;
}

/* === NAV === */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 1rem 0;
    background: rgba(10, 10, 11, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

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

.nav__logo {
    text-decoration: none;
}

.nav__logo-img {
    height: 8rem;
    width: auto;
    display: block;
    filter: brightness(0) invert(1);
}

.nav__cta {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--accent);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border: 1px solid var(--accent);
    border-radius: var(--radius-sm);
    transition: background 0.2s, color 0.2s;
}

.nav__cta:hover {
    background: var(--accent);
    color: var(--bg);
}

/* === HERO === */
.hero {
    padding: 10rem 0 5rem;
    text-align: center;
}

.hero__tag {
    font-family: var(--mono);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 1.5rem;
}

.hero__title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
}

.hero__sub {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto 2.5rem;
    line-height: 1.6;
}

.hero__note {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 1rem;
}

/* === BUTTONS === */
.btn {
    display: inline-block;
    font-family: var(--font);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: transform 0.15s, box-shadow 0.2s, background 0.2s;
}

.btn--primary {
    background: var(--accent);
    color: var(--bg);
    padding: 0.9rem 2rem;
}

.btn--primary:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(200, 164, 86, 0.3);
}

.btn--large {
    padding: 1rem 2.5rem;
    font-size: 1.05rem;
}

.btn--ghost {
    background: transparent;
    color: var(--text-muted);
    padding: 0.9rem 2rem;
    border: 1px solid var(--border);
}

.btn--ghost:hover {
    color: var(--text-primary);
    border-color: var(--text-muted);
}

/* === TRUST BAR === */
.trust-bar {
    padding: 1.5rem 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    text-align: center;
}

.trust-bar .container {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.trust-bar span {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.trust-bar__sep {
    color: var(--border);
}

/* === PROBLEM === */
.problem p {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
}

.problem p strong {
    color: var(--text-primary);
}

/* === SECTION TITLES === */
.section__title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
    text-align: center;
}

.section__sub {
    font-size: 1.1rem;
    color: var(--text-secondary);
    text-align: center;
    max-width: 560px;
    margin: 0 auto 3rem;
}

/* === LAYERS (SYSTEM) === */
.layers {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.layer {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
}

.layer__icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.layer__label {
    font-family: var(--mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: 0.5rem;
}

.layer__name {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.layer__desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.disclaimer {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-align: center;
    margin-top: 2rem;
}

/* === STEPS === */
.step {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.step__num {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-subtle);
    border: 1px solid var(--border);
    border-radius: 50%;
    font-family: var(--mono);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent);
}

.step__title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.step p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.steps__result {
    text-align: center;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent);
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

/* === INGREDIENTS === */
.ingredients {
    background: var(--bg-elevated);
}

.ingredients__table-wrap {
    overflow-x: auto;
    margin: 2rem 0;
}

.ingredients__table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.ingredients__table th {
    text-align: left;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
}

.ingredients__table td {
    padding: 0.9rem 1rem;
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
}

.ingredients__table tr:last-child td {
    border-bottom: none;
}

.ingredients__table td:first-child {
    color: var(--text-primary);
    font-weight: 500;
}

.ingredients__spec {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.ingredients__nrv {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
}

.badge {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
    padding: 0.4rem 0.9rem;
    border: 1px solid var(--border);
    border-radius: 100px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* === COMPARISON === */
.comparison__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 2.5rem;
}

.comparison__col {
    padding: 2rem;
    border-radius: var(--radius);
}

.comparison__col h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
}

.comparison__col ul {
    list-style: none;
}

.comparison__col li {
    font-size: 0.9rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.comparison__col li:last-child {
    border-bottom: none;
}

.comparison__col--old {
    background: var(--bg-subtle);
    border: 1px solid var(--border);
}

.comparison__col--old s {
    color: var(--text-muted);
}

.comparison__col--old span {
    font-family: var(--mono);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.comparison__col--new {
    background: var(--bg-elevated);
    border: 1px solid var(--accent);
}

.comparison__col--new li {
    color: var(--text-secondary);
}

.comparison__total {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 1.25rem;
    text-align: center;
}

.comparison__total--highlight {
    color: var(--accent);
    font-weight: 600;
    font-size: 1rem;
}

/* === FOUNDER === */
.founder {
    text-align: center;
}

.founder__quote {
    font-size: 1.3rem;
    font-style: italic;
    color: var(--text-secondary);
    line-height: 1.6;
    max-width: 600px;
    margin: 0 auto;
}

.founder__attr {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 1.5rem;
}

/* === FAQ === */
.faq__item {
    border-bottom: 1px solid var(--border);
    padding: 1.25rem 0;
}

.faq__item summary {
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.faq__item summary::after {
    content: '+';
    font-size: 1.2rem;
    color: var(--text-muted);
    transition: transform 0.2s;
}

.faq__item[open] summary::after {
    transform: rotate(45deg);
}

.faq__item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 0.75rem;
    padding-right: 2rem;
}

/* === CTA FINAL === */
.cta-final {
    text-align: center;
    padding: 6rem 0;
}

.cta-final__title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
}

.cta-final__sub {
    font-size: 1rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
}

.cta-form {
    display: flex;
    gap: 0.75rem;
    max-width: 480px;
    margin: 0 auto;
    flex-wrap: wrap;
    justify-content: center;
}

.cta-form__input {
    flex: 1;
    min-width: 220px;
    padding: 0.9rem 1.25rem;
    font-family: var(--font);
    font-size: 1rem;
    color: var(--text-primary);
    background: var(--bg-subtle);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    outline: none;
    transition: border-color 0.2s;
}

.cta-form__input:focus {
    border-color: var(--accent);
}

.cta-form__input::placeholder {
    color: var(--text-muted);
}

.cta-final__note {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 1.25rem;
}

/* === MODAL === */
.modal[hidden] {
    display: none;
}

.modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
}

.modal__content {
    position: relative;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.5rem;
    max-width: 440px;
    width: 100%;
}

.modal__content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.modal__content > p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.modal__form label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
}

.modal__form textarea,
.modal__form select {
    display: block;
    width: 100%;
    margin-top: 0.5rem;
    padding: 0.75rem 1rem;
    font-family: var(--font);
    font-size: 0.9rem;
    color: var(--text-primary);
    background: var(--bg-subtle);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    outline: none;
    resize: vertical;
}

.modal__form textarea:focus,
.modal__form select:focus {
    border-color: var(--accent);
}

.modal__form .btn {
    width: 100%;
    margin-top: 0.5rem;
}

/* === FOOTER === */
.footer {
    text-align: center;
    padding: 3rem 0;
    border-top: 1px solid var(--border);
}

.footer__brand {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.footer__tagline {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-style: italic;
}

.footer__legal {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 1rem;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
    .hero {
        padding: 7rem 0 3rem;
    }

    .section {
        padding: 3.5rem 0;
    }

    .layers {
        grid-template-columns: 1fr;
    }

    .comparison__grid {
        grid-template-columns: 1fr;
    }

    .cta-form {
        flex-direction: column;
    }

    .cta-form__input {
        min-width: 100%;
    }

    .step {
        gap: 1rem;
    }

    .trust-bar .container {
        gap: 0.25rem;
    }

    .trust-bar__sep {
        display: none;
    }

    .trust-bar span {
        padding: 0.25rem 0.5rem;
    }
}

@media (max-width: 480px) {
    .hero__title {
        font-size: 2rem;
    }

    .section__title {
        font-size: 1.5rem;
    }

    .layer {
        padding: 1.5rem;
    }

    .modal__content {
        padding: 1.5rem;
    }
}