/*
 * ELLITE MONDE
 * Base visual global da revista.
 */

:root {
    color-scheme: light;

    --color-background: #f4f1eb;
    --color-surface: rgba(255, 255, 255, 0.72);
    --color-text: #171717;
    --color-text-muted: #5f5f5f;
    --color-border: rgba(23, 23, 23, 0.12);

    --font-editorial: Georgia, "Times New Roman", serif;
    --font-interface: Arial, Helvetica, sans-serif;

    --container-narrow: 720px;
    --space-page: 24px;
    --radius-none: 0;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    min-height: 100%;
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
    background: var(--color-background);
    color: var(--color-text);
    font-family: var(--font-editorial);
    -webkit-text-size-adjust: 100%;
    text-rendering: optimizeLegibility;
}

body {
    margin: 0;
    min-height: 100vh;
    background:
        linear-gradient(
            180deg,
            rgba(255, 255, 255, 0.88),
            rgba(244, 241, 235, 0.96)
        );
    color: var(--color-text);
}

img,
picture,
svg,
video {
    display: block;
    max-width: 100%;
}

button,
input,
select,
textarea {
    font: inherit;
}

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

a:hover,
a:focus-visible {
    text-decoration: underline;
    text-underline-offset: 0.18em;
}

button:focus-visible,
a:focus-visible {
    outline: 2px solid var(--color-text);
    outline-offset: 4px;
}

::selection {
    background: var(--color-text);
    color: #ffffff;
}

.site-shell {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: var(--space-page);
}

.intro-panel {
    width: min(100%, var(--container-narrow));
    padding: 64px 32px;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    text-align: center;
}

.intro-panel__eyebrow {
    margin: 0 0 16px;
    font-family: var(--font-interface);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.24em;
    text-transform: uppercase;
}

.intro-panel__title {
    margin: 0;
    font-size: clamp(40px, 8vw, 76px);
    font-weight: 400;
    letter-spacing: 0.04em;
    line-height: 0.95;
}

.intro-panel__signature {
    max-width: 520px;
    margin: 24px auto 0;
    font-size: clamp(18px, 3vw, 25px);
    line-height: 1.5;
}

/* ==========================================================
 * HEADER GLOBAL
 * ========================================================== */

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
    border-bottom: 1px solid var(--color-border);
    background: rgba(244, 241, 235, 0.96);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
}

.site-header__inner {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 28px;

    width: min(1320px, calc(100% - 64px));
    min-height: 76px;
    margin: 0 auto;
}

.site-header__brand {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    min-width: max-content;
}

.site-header__brand:hover,
.site-header__brand:focus-visible {
    text-decoration: none;
}

.site-header__brand-logo {
    display: block;
    width: auto;
    max-width: 100px;
    height: auto;
}

.site-header__brand-name {
    font-family: var(--font-editorial);
    font-size: clamp(20px, 1.8vw, 27px);
    font-weight: 400;
    line-height: 1;
    letter-spacing: 0.13em;
}

.site-header__brand-signature {
    color: var(--color-text-muted);
    font-family: var(--font-interface);
    font-size: 9px;
    font-weight: 600;
    line-height: 1.4;
    letter-spacing: 0.13em;
    text-transform: uppercase;
}

.site-header__navigation {
    justify-self: end;
}

.site-header__navigation-list {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 22px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.site-header__navigation-link {
    position: relative;
    font-family: var(--font-interface);
    font-size: 10px;
    font-weight: 700;
    line-height: 1;
    letter-spacing: 0.13em;
    text-transform: uppercase;
    white-space: nowrap;
}

.site-header__navigation-link--disabled {
    color: rgba(23, 23, 23, 0.36);
    cursor: default;
}

.site-header__menu-button {
    display: none;
    align-items: center;
    gap: 10px;
    min-height: 42px;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--color-text);
    font-family: var(--font-interface);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    cursor: pointer;
}

.site-header__menu-button:hover,
.site-header__menu-button:focus-visible {
    text-decoration: none;
}

.site-header__menu-icon {
    position: relative;
    width: 22px;
    height: 14px;
}

.site-header__menu-icon span {
    position: absolute;
    left: 0;
    width: 100%;
    height: 1px;
    background: currentColor;
    transition:
        transform 180ms ease,
        top 180ms ease;
}

.site-header__menu-icon span:first-child {
    top: 3px;
}

.site-header__menu-icon span:last-child {
    top: 10px;
}

.site-header__menu-button[aria-expanded="true"]
.site-header__menu-icon span:first-child {
    top: 7px;
    transform: rotate(45deg);
}

.site-header__menu-button[aria-expanded="true"]
.site-header__menu-icon span:last-child {
    top: 7px;
    transform: rotate(-45deg);
}

/* ==========================================================
 * BOTÃO VOLTAR AO TOPO
 * ========================================================== */

.back-to-top {
    position: fixed;
    right: max(24px, env(safe-area-inset-right));
    bottom: max(24px, env(safe-area-inset-bottom));
    z-index: 900;

    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;

    padding: 0;
    border: 1px solid rgba(23, 23, 23, 0.18);
    border-radius: 50%;

    background: rgba(244, 241, 235, 0.94);
    color: var(--color-text);

    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);

    box-shadow:
        0 10px 30px rgba(23, 23, 23, 0.10);

    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(12px);

    cursor: pointer;

    transition:
        opacity 180ms ease,
        visibility 180ms ease,
        transform 180ms ease,
        background-color 180ms ease,
        border-color 180ms ease;
}

.back-to-top::before {
    content: "";
    width: 11px;
    height: 11px;
    margin-top: 5px;
    border-top: 1.5px solid currentColor;
    border-left: 1.5px solid currentColor;
    transform: rotate(45deg);
}

.back-to-top:hover {
    border-color: rgba(23, 23, 23, 0.34);
    background: rgba(255, 255, 255, 0.98);
}

.back-to-top:focus-visible {
    outline: 2px solid var(--color-text);
    outline-offset: 4px;
}

.back-to-top.is-visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
}

/* Classe opcional para texto acessível dentro do botão. */
.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* ==========================================================
 * RESPONSIVIDADE
 * ========================================================== */

@media (max-width: 980px) {
    html {
        scroll-padding-top: 90px;
    }

    .site-header__inner {
        grid-template-columns: 1fr auto;
        min-height: 76px;
    }

    .site-header__menu-button {
        display: inline-flex;
        justify-self: end;
    }

    .site-header__navigation {
        grid-column: 1 / -1;
        justify-self: stretch;
        display: none;
        max-height: calc(100vh - 76px);
        max-height: calc(100dvh - 76px);
        overflow-y: auto;
        overscroll-behavior: contain;
        padding: 18px 0 24px;
        border-top: 1px solid var(--color-border);
    }

    .site-header__navigation.is-open {
        display: block;
    }

    .site-header__navigation-list {
        align-items: flex-start;
        flex-direction: column;
        gap: 0;
    }

    .site-header__navigation-item {
        width: 100%;
    }

    .site-header__navigation-link {
        display: block;
        width: 100%;
        padding: 14px 0;
    }
}

@media (max-width: 640px) {
    :root {
        --space-page: 16px;
    }

    html {
        scroll-padding-top: 82px;
    }

    .intro-panel {
        padding: 48px 24px;
    }

    .intro-panel__eyebrow {
        font-size: 11px;
        letter-spacing: 0.2em;
    }

    .site-header__inner {
        width: calc(100% - 40px);
    }

    .site-header__brand-logo {
        max-width: 180px;
    }

    .site-header__brand-signature {
        display: none;
    }

    .back-to-top {
        right: max(16px, env(safe-area-inset-right));
        bottom: max(16px, env(safe-area-inset-bottom));
        width: 44px;
        height: 44px;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}