/* =========================================================================
   Breo Box Theme · Main Stylesheet
   还原 breobox.com 视觉风格：单色调、编辑型杂志感、订阅盒子
   ========================================================================= */

/* ----------------------------------------------------------------
 * 1. Design Tokens
 * ---------------------------------------------------------------- */
:root {
    --color-bg: #FFFFFF;
    --color-bg-alt: #F7F7F5;
    --color-bg-card: #FFFFFF;
    --color-fg: #0A0A0A;
    --color-fg-muted: #6B7280;
    --color-fg-subtle: #9CA3AF;
    --color-border: #E5E7EB;
    --color-border-strong: #D1D5DB;
    --color-accent: #0A0A0A;
    --color-accent-fg: #FFFFFF;
    --color-success: #0F766E;
    --color-warn: #B45309;
    --color-danger: #B91C1C;

    --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;

    --fs-hero: clamp(2.5rem, 5vw, 4.5rem);
    --fs-h2: clamp(1.875rem, 3vw, 2.75rem);
    --fs-h3: clamp(1.375rem, 2vw, 1.75rem);
    --fs-card-title: 1.25rem;
    --fs-body: 1rem;
    --fs-small: 0.875rem;
    --fs-mini: 0.75rem;

    --container-max: 1200px;
    --container-px: clamp(1rem, 4vw, 2rem);

    --section-py: clamp(4rem, 8vw, 7rem);

    --radius-sm: 4px;
    --radius: 6px;
    --radius-lg: 8px;
    --radius-pill: 999px;

    --ease: cubic-bezier(0.22, 1, 0.36, 1);
    --t-fast: 0.2s;
    --t-base: 0.3s;
    --t-slow: 0.5s;

    --shadow-sm: 0 1px 2px rgba(10, 10, 10, 0.04);
    --shadow-md: 0 4px 12px rgba(10, 10, 10, 0.06);
    --shadow-lg: 0 12px 32px rgba(10, 10, 10, 0.08);
}

/* ----------------------------------------------------------------
 * 2. Reset
 * ---------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--font-sans);
    font-size: var(--fs-body);
    line-height: 1.65;
    color: var(--color-fg);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

img, picture, video, canvas, svg { display: block; max-width: 100%; height: auto; }
input, button, textarea, select { font: inherit; color: inherit; }
button { background: none; border: none; cursor: pointer; padding: 0; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, h5, h6, p { margin: 0; }

:focus-visible {
    outline: 2px solid var(--color-fg);
    outline-offset: 2px;
    border-radius: 2px;
}

/* ----------------------------------------------------------------
 * 3. Typography
 * ---------------------------------------------------------------- */
.h-hero {
    font-size: var(--fs-hero);
    line-height: 1.05;
    font-weight: 700;
    letter-spacing: -0.02em;
}
.h-section {
    font-size: var(--fs-h2);
    line-height: 1.15;
    font-weight: 700;
    letter-spacing: -0.015em;
}
.h-card {
    font-size: var(--fs-card-title);
    line-height: 1.3;
    font-weight: 600;
    letter-spacing: -0.01em;
}
.t-muted { color: var(--color-fg-muted); }
.t-subtle { color: var(--color-fg-subtle); }
.t-small { font-size: var(--fs-small); line-height: 1.55; }
.t-mini { font-size: var(--fs-mini); line-height: 1.4; }
.t-uppercase {
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: var(--fs-mini);
    font-weight: 500;
}
.t-center { text-align: center; }

/* ----------------------------------------------------------------
 * 4. Layout
 * ---------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--container-px);
}

.section {
    padding-block: var(--section-py);
}
.section--alt { background: var(--color-bg-alt); }
.section__head {
    text-align: center;
    max-width: 720px;
    margin-inline: auto;
    margin-bottom: 3rem;
}
.section__head--start { text-align: left; margin-inline: 0; }
.section__eyebrow {
    display: inline-block;
    color: var(--color-fg-muted);
    margin-bottom: 0.75rem;
}
.section__lead {
    margin-top: 1rem;
    color: var(--color-fg-muted);
    font-size: 1.0625rem;
    line-height: 1.6;
}

/* ----------------------------------------------------------------
 * 5. Buttons
 * ---------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    border-radius: var(--radius);
    border: 1px solid transparent;
    cursor: pointer;
    transition:
        background-color var(--t-base) var(--ease),
        color var(--t-base) var(--ease),
        border-color var(--t-base) var(--ease),
        transform var(--t-fast) var(--ease),
        box-shadow var(--t-base) var(--ease);
    text-align: center;
    white-space: nowrap;
    line-height: 1;
}
.btn:disabled, .btn[aria-disabled="true"] {
    opacity: 0.6;
    cursor: not-allowed;
}
.btn--primary {
    background: var(--color-accent);
    color: var(--color-accent-fg);
}
.btn--primary:hover:not(:disabled) {
    background: #1F1F1F;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}
.btn--outline {
    background: transparent;
    color: var(--color-fg);
    border-color: var(--color-fg);
}
.btn--outline:hover:not(:disabled) {
    background: var(--color-fg);
    color: var(--color-accent-fg);
}
.btn--ghost {
    background: transparent;
    color: var(--color-fg);
    padding-inline: 0;
    border-radius: 0;
}
.btn--ghost:hover:not(:disabled) {
    text-decoration: underline;
    text-underline-offset: 4px;
}
.btn--lg { padding: 1.0625rem 2rem; font-size: 1rem; }
.btn--block { display: flex; width: 100%; }
.btn--loading {
    position: relative;
    color: transparent !important;
    pointer-events: none;
}
.btn--loading::after {
    content: "";
    position: absolute;
    inset: 0;
    margin: auto;
    width: 18px;
    height: 18px;
    border: 2px solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: btn-spin 0.7s linear infinite;
    color: var(--color-accent-fg);
}
@keyframes btn-spin {
    to { transform: rotate(360deg); }
}

.btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
}
.btn-group--center { justify-content: center; }
.btn-group--stack { flex-direction: column; align-items: stretch; }

/* ----------------------------------------------------------------
 * 6. Header
 * ---------------------------------------------------------------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: saturate(180%) blur(12px);
    -webkit-backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--color-border);
}
.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    min-height: 72px;
}
.site-header__logo a, .site-header__logo .custom-logo-link {
    display: inline-flex;
    align-items: center;
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.01em;
    color: var(--color-fg);
}
.site-header__logo img { max-height: 36px; width: auto; }
.site-header__nav {
    display: flex;
    align-items: center;
    gap: 2rem;
    flex: 1;
    justify-content: center;
}
.site-header__menu {
    display: flex;
    align-items: center;
    gap: 1.75rem;
    font-size: 0.95rem;
}
.site-header__menu a {
    color: var(--color-fg);
    transition: color var(--t-fast) var(--ease);
}
.site-header__menu a:hover { color: var(--color-fg-muted); }
.site-header__menu .current-menu-item > a {
    text-decoration: underline;
    text-underline-offset: 6px;
    text-decoration-thickness: 1px;
}
.site-header__actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.header-cart {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 0.75rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-fg);
    border-radius: var(--radius);
    transition: background var(--t-fast) var(--ease);
}
.header-cart:hover { background: var(--color-bg-alt); }
.header-cart-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 22px;
    height: 22px;
    padding: 0 6px;
    font-size: 0.7rem;
    font-weight: 600;
    background: var(--color-fg);
    color: #fff;
    border-radius: var(--radius-pill);
}
.menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    transition: background var(--t-fast) var(--ease);
}
.menu-toggle:hover { background: var(--color-bg-alt); }
.menu-toggle svg { width: 22px; height: 22px; }

/* ----------------------------------------------------------------
 * 7. Hero
 * ---------------------------------------------------------------- */
.hero {
    padding-block: clamp(5rem, 9vw, 8rem);
    text-align: center;
    background: var(--color-bg);
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: radial-gradient(
        circle at 50% 0%,
        rgba(10, 10, 10, 0.025),
        transparent 60%
    );
    pointer-events: none;
}
.hero__inner { position: relative; max-width: 880px; margin-inline: auto; }
.hero__eyebrow {
    display: inline-block;
    margin-bottom: 1.25rem;
    color: var(--color-fg-muted);
}
.hero__title {
    font-size: var(--fs-hero);
    line-height: 1.05;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
}
.hero__subtitle {
    font-size: 1.125rem;
    line-height: 1.55;
    color: var(--color-fg-muted);
    max-width: 640px;
    margin: 0 auto 2.5rem;
}
.hero__ctas {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 2.5rem;
}
.hero__badges {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
    color: var(--color-fg-muted);
    font-size: var(--fs-small);
}
.hero__badges .badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}
.hero__badges .badge::before {
    content: "★";
    color: var(--color-fg);
}

/* ----------------------------------------------------------------
 * 8. Section: Categories
 * ---------------------------------------------------------------- */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}
.category-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    transition:
        transform var(--t-base) var(--ease),
        box-shadow var(--t-base) var(--ease),
        border-color var(--t-base) var(--ease);
    display: flex;
    flex-direction: column;
}
.category-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-border-strong);
}
.category-card__icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius);
    background: var(--color-bg-alt);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    color: var(--color-fg);
}
.category-card__icon svg { width: 22px; height: 22px; }
.category-card__title {
    font-size: 1.0625rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    letter-spacing: -0.005em;
}
.category-card__desc {
    color: var(--color-fg-muted);
    font-size: var(--fs-small);
    line-height: 1.55;
}

/* ----------------------------------------------------------------
 * 9. Section: Past Boxes
 * ---------------------------------------------------------------- */
.past-boxes-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}
.past-box {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition:
        transform var(--t-base) var(--ease),
        box-shadow var(--t-base) var(--ease);
}
.past-box:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}
.past-box__media {
    aspect-ratio: 4 / 3;
    background: var(--color-bg-alt);
    overflow: hidden;
}
.past-box__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--t-slow) var(--ease);
}
.past-box:hover .past-box__media img {
    transform: scale(1.04);
}
.past-box__body {
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}
.past-box__eyebrow {
    color: var(--color-fg-muted);
    margin-bottom: 0.5rem;
}
.past-box__title {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-bottom: 1.25rem;
    line-height: 1.2;
}
.past-box__items {
    list-style: none;
    padding: 0;
    margin: 0 0 1.5rem;
    flex: 1;
}
.past-box__items li {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 1rem;
    padding: 0.625rem 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.9375rem;
    color: var(--color-fg);
}
.past-box__items li:last-child { border-bottom: none; }
.past-box__items .item-name { flex: 1; }
.past-box__items .item-msrp {
    color: var(--color-fg-muted);
    font-variant-numeric: tabular-nums;
    font-size: 0.875rem;
}
.past-box__cta { margin-top: auto; }

/* ----------------------------------------------------------------
 * 10. Section: Testimonials
 * ---------------------------------------------------------------- */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}
.testimonial {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
}
.testimonial__quote {
    color: var(--color-fg);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    flex: 1;
}
.testimonial__quote::before {
    content: "\201C";
    font-size: 1.75rem;
    line-height: 0;
    color: var(--color-fg-muted);
    margin-right: 0.25rem;
    vertical-align: -0.4em;
}
.testimonial__person {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
}
.testimonial__avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    object-fit: cover;
    background: var(--color-bg-alt);
    flex-shrink: 0;
}
.testimonial__name {
    font-weight: 600;
    font-size: 0.9375rem;
}
.testimonial__label {
    color: var(--color-fg-muted);
    font-size: 0.8125rem;
    margin-top: 0.125rem;
}

/* ----------------------------------------------------------------
 * 11. Section: How it Works
 * ---------------------------------------------------------------- */
.how-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    counter-reset: step;
}
.how-step {
    text-align: center;
    padding: 1rem;
}
.how-step__num {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--color-fg);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    counter-increment: step;
}
.how-step__num::before {
    content: counter(step);
}
.how-step__title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}
.how-step__desc {
    color: var(--color-fg-muted);
    font-size: 0.9375rem;
    line-height: 1.6;
}

/* ----------------------------------------------------------------
 * 12. Section: FAQ
 * ---------------------------------------------------------------- */
.faq {
    max-width: 820px;
    margin-inline: auto;
}
.faq-item {
    border-bottom: 1px solid var(--color-border);
}
.faq-item:first-child { border-top: 1px solid var(--color-border); }
.faq-item__q {
    width: 100%;
    text-align: left;
    padding: 1.5rem 2.5rem 1.5rem 0;
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--color-fg);
    background: transparent;
    border: none;
    cursor: pointer;
    position: relative;
    line-height: 1.4;
    letter-spacing: -0.005em;
}
.faq-item__q::after {
    content: "";
    position: absolute;
    right: 0.25rem;
    top: 50%;
    width: 14px;
    height: 14px;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230A0A0A' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><line x1='12' y1='5' x2='12' y2='19'/><line x1='5' y1='12' x2='19' y2='12'/></svg>");
    background-repeat: no-repeat;
    background-position: center;
    transform: translateY(-50%) rotate(0);
    transition: transform var(--t-base) var(--ease);
}
.faq-item.is-open .faq-item__q::after {
    transform: translateY(-50%) rotate(45deg);
}
.faq-item__a {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--t-base) var(--ease);
}
.faq-item__a-inner {
    padding: 0 0 1.5rem;
    color: var(--color-fg-muted);
    line-height: 1.65;
    font-size: 0.9375rem;
}
.faq-item.is-open .faq-item__a {
    max-height: 800px;
}
.faq-cta { text-align: center; margin-top: 2.5rem; }

/* ----------------------------------------------------------------
 * 13. Section: Founders
 * ---------------------------------------------------------------- */
.founders {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
    text-align: center;
}
.founders__avatars {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
}
.founder-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
}
.founders__heading {
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: 700;
    letter-spacing: -0.01em;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    max-width: 720px;
    margin-inline: auto;
}
.founders__body {
    max-width: 680px;
    margin: 0 auto 2rem;
    color: var(--color-fg-muted);
    font-size: 1.0625rem;
    line-height: 1.65;
}
.founders__names {
    color: var(--color-fg-muted);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    font-weight: 500;
}

/* ----------------------------------------------------------------
 * 14. Section: Final CTA (used in both hero-end and after founders)
 * ---------------------------------------------------------------- */
.cta-band {
    background: var(--color-bg-alt);
    padding-block: clamp(4rem, 8vw, 7rem);
    text-align: center;
}
.cta-band__inner { max-width: 720px; margin-inline: auto; }
.cta-band__title {
    font-size: var(--fs-h2);
    font-weight: 700;
    letter-spacing: -0.015em;
    line-height: 1.15;
    margin-bottom: 1rem;
}
.cta-band__desc {
    color: var(--color-fg-muted);
    margin-bottom: 2rem;
    font-size: 1.0625rem;
    line-height: 1.6;
}

/* ----------------------------------------------------------------
 * 15. Trust strip
 * ---------------------------------------------------------------- */
.trust-strip {
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    padding-block: 1.5rem;
    background: var(--color-bg);
}
.trust-strip__inner {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    color: var(--color-fg-muted);
    font-size: 0.875rem;
}
.trust-strip__item {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

/* ----------------------------------------------------------------
 * 16. Footer
 * ---------------------------------------------------------------- */
.site-footer {
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
    padding-block: 4rem 2rem;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}
.footer-brand__logo {
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    letter-spacing: -0.01em;
}
.footer-brand__about {
    color: var(--color-fg-muted);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    max-width: 320px;
}
.footer-col__title {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-fg);
    margin-bottom: 1.25rem;
}
.footer-col ul li {
    margin-bottom: 0.625rem;
}
.footer-col a {
    color: var(--color-fg-muted);
    font-size: 0.9375rem;
    transition: color var(--t-fast) var(--ease);
}
.footer-col a:hover { color: var(--color-fg); }
.footer-bottom {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding-top: 2rem;
    border-top: 1px solid var(--color-border);
    color: var(--color-fg-muted);
    font-size: 0.875rem;
}
.footer-bottom__legal {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}
.footer-bottom__legal a {
    color: var(--color-fg-muted);
    transition: color var(--t-fast) var(--ease);
}
.footer-bottom__legal a:hover { color: var(--color-fg); }

.social-links {
    display: flex;
    gap: 0.75rem;
}
.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--color-border);
    color: var(--color-fg);
    transition:
        background var(--t-fast) var(--ease),
        color var(--t-fast) var(--ease),
        border-color var(--t-fast) var(--ease);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
}
.social-links a:hover {
    background: var(--color-fg);
    color: #fff;
    border-color: var(--color-fg);
}

/* ----------------------------------------------------------------
 * 17. Newsletter
 * ---------------------------------------------------------------- */
.newsletter {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    max-width: 560px;
    margin-inline: auto;
}
.newsletter__title {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-bottom: 0.5rem;
}
.newsletter__desc {
    color: var(--color-fg-muted);
    margin-bottom: 1.25rem;
    font-size: 0.9375rem;
}
.newsletter__form {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    justify-content: center;
}
.newsletter__form input[type="email"] {
    flex: 1;
    min-width: 200px;
    height: 48px;
    padding: 0 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-bg);
    font-size: 0.95rem;
    transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}
.newsletter__form input[type="email"]:focus {
    outline: none;
    border-color: var(--color-fg);
    box-shadow: 0 0 0 3px rgba(10, 10, 10, 0.12);
}
.newsletter__feedback {
    margin-top: 0.75rem;
    font-size: 0.875rem;
    min-height: 1.25rem;
}
.newsletter__feedback.is-error { color: var(--color-warn); }
.newsletter__feedback.is-success { color: var(--color-success); }

/* ----------------------------------------------------------------
 * 18. Page header (for inner pages)
 * ---------------------------------------------------------------- */
.page-header {
    padding-block: clamp(3.5rem, 6vw, 5rem);
    text-align: center;
    background: var(--color-bg-alt);
    border-bottom: 1px solid var(--color-border);
}
.page-header__eyebrow {
    color: var(--color-fg-muted);
    margin-bottom: 0.75rem;
}
.page-header__title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.015em;
    line-height: 1.1;
}
.page-header__desc {
    color: var(--color-fg-muted);
    margin-top: 1rem;
    max-width: 640px;
    margin-inline: auto;
    font-size: 1.0625rem;
}

/* ----------------------------------------------------------------
 * 19. Cards (generic)
 * ---------------------------------------------------------------- */
.card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
}

/* ----------------------------------------------------------------
 * 20. Empty state
 * ---------------------------------------------------------------- */
.empty-state {
    text-align: center;
    padding: 4rem 1.5rem;
}
.empty-state__title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}
.empty-state__desc {
    color: var(--color-fg-muted);
    margin-bottom: 1.5rem;
}

/* ----------------------------------------------------------------
 * 21. Breadcrumbs
 * ---------------------------------------------------------------- */
.breadcrumbs {
    padding-block: 1rem;
    font-size: 0.875rem;
    color: var(--color-fg-muted);
}
.breadcrumbs__list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}
.breadcrumbs__item {
    display: inline-flex;
    align-items: center;
}
.breadcrumbs__item + .breadcrumbs__item::before {
    content: "/";
    margin-right: 0.5rem;
    color: var(--color-fg-subtle);
}
.breadcrumbs a { color: var(--color-fg-muted); }
.breadcrumbs a:hover { color: var(--color-fg); }

/* ----------------------------------------------------------------
 * 22. Badges
 * ---------------------------------------------------------------- */
.badge {
    display: inline-flex;
    align-items: center;
    background: var(--color-bg-alt);
    padding: 0.25rem 0.625rem;
    border-radius: var(--radius-pill);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-fg);
}
.badge--outline {
    background: transparent;
    border: 1px solid var(--color-border);
}
.badge--dark {
    background: var(--color-fg);
    color: #fff;
}

/* ----------------------------------------------------------------
 * 23. Forms
 * ---------------------------------------------------------------- */
input[type="text"],
input[type="email"],
input[type="tel"],
input[type="url"],
input[type="password"],
input[type="number"],
input[type="search"],
textarea,
select {
    height: 48px;
    padding: 0 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-bg);
    font-size: 0.95rem;
    width: 100%;
    transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}
textarea {
    height: auto;
    padding: 0.75rem 1rem;
    min-height: 120px;
    resize: vertical;
}
input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--color-fg);
    box-shadow: 0 0 0 3px rgba(10, 10, 10, 0.12);
}
.field { margin-bottom: 1.25rem; }
.field__label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-fg);
}
.field__hint {
    margin-top: 0.375rem;
    font-size: 0.8125rem;
    color: var(--color-fg-muted);
}
.field__error {
    margin-top: 0.375rem;
    font-size: 0.8125rem;
    color: var(--color-warn);
}

/* ----------------------------------------------------------------
 * 24. Animation helpers
 * ---------------------------------------------------------------- */
.reveal {
    opacity: 0;
    transform: translateY(12px);
    transition:
        opacity 0.6s var(--ease),
        transform 0.6s var(--ease);
}
.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    .reveal { opacity: 1; transform: none; }
}