/* ============================================================
   SUTURA — CSS Principal
   Sistema de design: escuridão com densidade, ruído e silêncio,
   presença física, cicatriz como linguagem.
============================================================ */

/* ============================================================
   1. RESET & BASE
============================================================ */

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    font-size: 16px;
}

body {
    background-color: var(--color-background);
    color: var(--color-text);
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease, opacity 0.2s ease;
}

ul, ol {
    list-style: none;
}

button {
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
}

/* ============================================================
   2. VARIÁVEIS (Design Tokens)
============================================================ */

:root {
    /* Cores — paleta oficial SUTURA */
    --color-background:  #0E0E0E;   /* Pele Queimada — fundo dominante */
    --color-text:        #EDE9E4;   /* Osso Bruto — texto principal */
    --color-accent:      #AF3A27;   /* Ferrugem Viva — CTAs, hover, destaques */
    --color-muted:       #575757;   /* Cinzento Cirúrgico — elementos secundários */
    --color-overlay:     #3D1F23;   /* Vinho Vazio — overlays dramáticos */
    --color-background-2: #141414; /* Variação levemente mais clara para seções alternadas */
    --color-border:      rgba(237, 233, 228, 0.1); /* Borda sutil */

    /* Tipografia */
    --font-display: 'Archivo Condensed', sans-serif;
    --font-body:    'Inter', sans-serif;
    --font-mono:    'IBM Plex Mono', monospace;

    /* Espaçamentos */
    --space-xs:  0.5rem;   /* 8px */
    --space-sm:  1rem;     /* 16px */
    --space-md:  1.5rem;   /* 24px */
    --space-lg:  2.5rem;   /* 40px */
    --space-xl:  4rem;     /* 64px */
    --space-2xl: 6rem;     /* 96px */
    --space-3xl: 8rem;     /* 128px */

    /* Layout */
    --container-max:    1200px;
    --container-narrow: 780px;
    --header-height:    72px;

    /* Transições */
    --transition-fast:   0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-slow:   0.45s ease;
}

/* ============================================================
   3. TIPOGRAFIA
============================================================ */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.0;
    color: var(--color-text);
    text-transform: uppercase;
    letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.5rem, 6vw, 5.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3.5rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2.25rem); }

p {
    font-family: var(--font-body);
    font-size: clamp(1rem, 1.5vw, 1.125rem);
    line-height: 1.65;
    color: var(--color-text);
}

/* ============================================================
   4. LAYOUT UTILITIES
============================================================ */

.container {
    width: 100%;
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--space-md);
    padding-right: var(--space-md);
}

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

.container--center {
    text-align: center;
    align-items: center;
}

.section {
    padding-top: var(--space-3xl);
    padding-bottom: var(--space-3xl);
    position: relative;
}

.section__label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.25em;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
    text-transform: uppercase;
}

.section__label-mono {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.3em;
    color: var(--color-accent);
    text-transform: uppercase;
    display: block;
    margin-bottom: var(--space-xs);
}

.section__title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--space-lg);
    color: var(--color-text);
}

.section__subtitle {
    font-size: 1rem;
    color: var(--color-muted);
    margin-bottom: var(--space-xl);
    max-width: 560px;
}

/* ============================================================
   5. GRAIN OVERLAY — textura analógica sutil
============================================================ */

.grain-overlay {
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    pointer-events: none;
    z-index: 9997;
    opacity: 0.035;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='1'/%3E%3C/svg%3E");
    background-size: 200px 200px;
}

/* ============================================================
   6. HEADER / NAVEGAÇÃO
============================================================ */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    background: transparent;
    transition: background var(--transition-slow), backdrop-filter var(--transition-slow);
}

.site-header.is-scrolled {
    background: rgba(14, 14, 14, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* Logo no header */
.header__logo {
    display: flex;
    align-items: center;
    z-index: 10;
}

.header__logo .logo-img {
    height: 36px;
    width: auto;
}

.header__logo .logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-text);
}

/* Navegação desktop */
.header__nav {
    display: flex;
    align-items: center;
}

.nav__list {
    display: flex;
    gap: var(--space-lg);
    align-items: center;
}

.nav__list li a {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-muted);
    transition: color var(--transition-fast);
    padding-bottom: 2px;
    border-bottom: 1px solid transparent;
}

.nav__list li a:hover,
.nav__list li a:focus {
    color: var(--color-text);
    border-bottom-color: var(--color-accent);
    outline: none;
}

/* Hamburger button */
.header__menu-toggle {
    display: none;
    z-index: 10;
    padding: 8px;
}

.hamburger {
    display: flex;
    flex-direction: column;
    gap: 5px;
    width: 24px;
}

.hamburger span {
    display: block;
    height: 1.5px;
    background-color: var(--color-text);
    transition: transform var(--transition-normal), opacity var(--transition-normal);
    transform-origin: center;
}

/* Estado aberto */
.header__menu-toggle.is-open .hamburger span:nth-child(1) {
    transform: translateY(6.5px) rotate(45deg);
}
.header__menu-toggle.is-open .hamburger span:nth-child(2) {
    opacity: 0;
}
.header__menu-toggle.is-open .hamburger span:nth-child(3) {
    transform: translateY(-6.5px) rotate(-45deg);
}

/* Menu mobile */
.mobile-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(14, 14, 14, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.mobile-menu.is-open {
    opacity: 1;
    visibility: visible;
}

.mobile-menu__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    text-align: center;
}

.mobile-menu__list li a {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--color-muted);
    letter-spacing: 0.05em;
    transition: color var(--transition-fast);
}

.mobile-menu__list li a:hover {
    color: var(--color-text);
}

/* ============================================================
   7. BOTÕES / CTAs
============================================================ */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    border: 1px solid transparent;
    cursor: pointer;
    transition: background var(--transition-normal), color var(--transition-normal), border-color var(--transition-normal);
    white-space: nowrap;
}

.btn:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 3px;
}

/* Primário — Ferrugem Viva preenchida */
.btn--primary {
    background-color: var(--color-accent);
    color: var(--color-text);
    border-color: var(--color-accent);
}

.btn--primary:hover {
    background-color: transparent;
    color: var(--color-accent);
}

/* Secundário — borda fina */
.btn--secondary {
    background-color: transparent;
    color: var(--color-text);
    border-color: rgba(237, 233, 228, 0.3);
}

.btn--secondary:hover {
    border-color: var(--color-text);
    color: var(--color-text);
}

/* Outline — borda accent */
.btn--outline {
    background-color: transparent;
    color: var(--color-muted);
    border-color: var(--color-muted);
}

.btn--outline:hover {
    color: var(--color-text);
    border-color: var(--color-text);
}

/* ============================================================
   8. SEÇÃO HERO
============================================================ */

.hero {
    position: relative;
    min-height: 100vh;
    min-height: 100svh;
    display: flex;
    align-items: flex-end;
    overflow: hidden;
    background-color: var(--color-background);
}

.hero__image-wrapper {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
}

.hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        160deg,
        rgba(14, 14, 14, 0.15) 0%,
        rgba(14, 14, 14, 0.35) 30%,
        rgba(61, 31, 35, 0.25) 55%,
        rgba(14, 14, 14, 0.88) 80%,
        rgba(14, 14, 14, 0.97) 100%
    );
}

.hero__content {
    position: relative;
    z-index: 2;
    padding-top: calc(var(--header-height) + var(--space-xl));
    padding-bottom: var(--space-3xl);
    width: 100%;
}

.hero__logo {
    margin-bottom: var(--space-xl);
}

.hero__logo .logo-img {
    height: 56px;
    width: auto;
    filter: brightness(0) invert(1);
}

.hero__logo .logo-text {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-text);
}

.hero__headline {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 7rem);
    font-weight: 700;
    line-height: 0.92;
    letter-spacing: -0.02em;
    text-transform: uppercase;
    color: var(--color-text);
    max-width: 800px;
    margin-bottom: var(--space-md);
}

.hero__subtext {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin-bottom: var(--space-xl);
}

.hero__ctas {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

/* Scroll indicator */
.hero__scroll-hint {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.scroll-hint__line {
    display: block;
    width: 1px;
    height: 48px;
    background: linear-gradient(to bottom, transparent, var(--color-muted));
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(1); }
    50% { opacity: 0.8; transform: scaleY(1.2); }
}

/* ============================================================
   9. SEÇÃO SOBRE
============================================================ */

.section--sobre {
    background-color: var(--color-background);
    border-top: 1px solid var(--color-border);
}

.sobre__text {
    color: rgba(237, 233, 228, 0.8);
    font-size: clamp(1rem, 1.5vw, 1.125rem);
    line-height: 1.75;
    margin-bottom: var(--space-xl);
}

.sobre__text p + p {
    margin-top: var(--space-md);
}

.sobre__text strong {
    color: var(--color-text);
    font-weight: 600;
}

/* Manifesto em destaque */
.manifesto-quote {
    border-left: 2px solid var(--color-accent);
    padding-left: var(--space-lg);
    margin-top: var(--space-xl);
}

.manifesto-quote p {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: -0.01em;
    line-height: 1.1;
    color: var(--color-text);
}

/* ============================================================
   10. SEÇÃO MÚSICA / SPOTIFY
============================================================ */

.section--musica {
    background-color: var(--color-background-2);
    border-top: 1px solid var(--color-border);
}

.spotify-embed {
    width: 100%;
    max-width: 800px;
}

.spotify-embed iframe {
    display: block;
    width: 100%;
    border-radius: 4px;
    border: none;
}

.spotify-embed__fallback {
    margin-top: var(--space-md);
    display: none; /* exibido via JS se iframe falhar, ou sempre em mobile ultra-lento */
}

/* ============================================================
   11. SEÇÃO PLATAFORMAS
============================================================ */

.section--plataformas {
    background-color: var(--color-background);
    border-top: 1px solid var(--color-border);
}

.platforms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--space-sm);
    margin-top: var(--space-lg);
}

.platform-card {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-md);
    border: 1px solid var(--color-border);
    background-color: transparent;
    color: var(--color-muted);
    transition: border-color var(--transition-normal), color var(--transition-normal), background var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.platform-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--color-accent);
    opacity: 0;
    transition: opacity var(--transition-normal);
    z-index: 0;
}

.platform-card:hover {
    border-color: var(--color-accent);
    color: var(--color-text);
}

.platform-card:hover::before {
    opacity: 0.08;
}

.platform-card:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.platform-card__icon {
    position: relative;
    z-index: 1;
    font-size: 1.5rem;
    width: 32px;
    text-align: center;
    flex-shrink: 0;
}

.platform-card__name {
    position: relative;
    z-index: 1;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    flex: 1;
}

.platform-card__arrow {
    position: relative;
    z-index: 1;
    font-size: 1rem;
    opacity: 0;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
    color: var(--color-accent);
}

.platform-card:hover .platform-card__arrow {
    opacity: 1;
    transform: translateX(4px);
}

/* ============================================================
   12. SEÇÃO REDES SOCIAIS
============================================================ */

.section--redes {
    background-color: var(--color-background-2);
    border-top: 1px solid var(--color-border);
}

.social-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.social-card {
    display: block;
    border: 1px solid var(--color-border);
    padding: var(--space-lg);
    transition: border-color var(--transition-normal), background var(--transition-normal);
    color: var(--color-text);
}

.social-card:hover {
    border-color: rgba(237, 233, 228, 0.3);
    background: rgba(237, 233, 228, 0.03);
}

.social-card:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.social-card__inner {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.social-card__inner > .fa-instagram {
    font-size: 2rem;
    color: var(--color-muted);
    transition: color var(--transition-fast);
    flex-shrink: 0;
}

.social-card:hover .fa-instagram {
    color: var(--color-accent);
}

.social-card__info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.social-card__label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--color-muted);
}

.social-card__handle {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    color: var(--color-text);
}

.social-card__desc {
    font-size: 0.85rem;
    color: var(--color-muted);
}

.social-card__arrow {
    font-size: 1.25rem;
    color: var(--color-muted);
    transition: color var(--transition-fast), transform var(--transition-fast);
}

.social-card:hover .social-card__arrow {
    color: var(--color-accent);
    transform: translate(2px, -2px);
}

/* ============================================================
   13. SEÇÃO CONTATO
============================================================ */

.section--contato {
    background-color: var(--color-background);
    border-top: 1px solid var(--color-border);
}

.section--contato .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.contato__text {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin-bottom: var(--space-lg);
}

.contato__email {
    display: inline-block;
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: -0.01em;
    color: var(--color-text);
    position: relative;
    padding-bottom: 4px;
    transition: color var(--transition-normal);
}

.contato__email::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

.contato__email:hover {
    color: var(--color-accent);
}

.contato__email:hover::after {
    transform: scaleX(1);
}

/* ============================================================
   14. RODAPÉ
============================================================ */

.site-footer {
    background-color: var(--color-background);
    border-top: 1px solid var(--color-border);
    padding: var(--space-3xl) 0 var(--space-xl);
}

.footer__inner {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    gap: var(--space-xl) var(--space-lg);
    align-items: start;
}

.footer__brand {
    grid-column: 1;
}

.footer__logo-link .logo-img {
    height: 32px;
    width: auto;
    filter: brightness(0) invert(1);
    margin-bottom: var(--space-sm);
}

.footer__logo-link .logo-text {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text);
}

.footer__tagline {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin-top: var(--space-xs);
}

.footer__nav {
    grid-column: 2;
    text-align: right;
}

.footer__nav-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    align-items: flex-end;
}

.footer__nav-list li a {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-muted);
    transition: color var(--transition-fast);
}

.footer__nav-list li a:hover {
    color: var(--color-text);
}

.footer__social {
    grid-column: 1;
    display: flex;
    gap: var(--space-md);
    align-items: center;
}

.footer__social-link {
    font-size: 1.25rem;
    color: var(--color-muted);
    transition: color var(--transition-fast);
}

.footer__social-link:hover {
    color: var(--color-accent);
}

.footer__copy {
    grid-column: 2;
    text-align: right;
}

.footer__copy p {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-muted);
}

.footer__copy a {
    color: var(--color-muted);
    transition: color var(--transition-fast);
}

.footer__copy a:hover {
    color: var(--color-text);
}

.footer__sep {
    margin: 0 0.5em;
    opacity: 0.4;
}

/* ============================================================
   15. PÁGINA 404
============================================================ */

.page-404 {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--space-3xl) 0;
}

.page-404 .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-lg);
}

.page-404__number {
    font-family: var(--font-display);
    font-size: clamp(6rem, 20vw, 16rem);
    font-weight: 700;
    line-height: 1;
    color: var(--color-overlay);
    letter-spacing: -0.05em;
    user-select: none;
}

.page-404__title {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    margin: 0;
}

.page-404__text {
    color: var(--color-muted);
    max-width: 400px;
    line-height: 1.7;
}

/* ============================================================
   16. PÁGINA PRIVACIDADE
============================================================ */

.page-privacidade {
    padding-top: calc(var(--header-height) + var(--space-3xl));
    padding-bottom: var(--space-3xl);
}

.page-privacidade__header {
    margin-bottom: var(--space-2xl);
    padding-bottom: var(--space-xl);
    border-bottom: 1px solid var(--color-border);
}

.privacidade__updated {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-muted);
    letter-spacing: 0.1em;
    margin-top: var(--space-sm);
}

.privacidade__content {
    color: rgba(237, 233, 228, 0.8);
}

.privacidade__content h2 {
    font-size: 1.25rem;
    margin-top: var(--space-xl);
    margin-bottom: var(--space-sm);
    color: var(--color-text);
}

.privacidade__content p {
    margin-bottom: var(--space-sm);
    font-size: 1rem;
    line-height: 1.75;
}

.privacidade__content ul {
    list-style: disc;
    padding-left: 1.5rem;
    margin-bottom: var(--space-sm);
}

.privacidade__content ul li {
    margin-bottom: var(--space-xs);
    font-size: 1rem;
    color: rgba(237, 233, 228, 0.8);
}

.privacidade__content a {
    color: var(--color-accent);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.privacidade__content a:hover {
    color: var(--color-text);
}

.privacidade__back {
    margin-top: var(--space-2xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-border);
}

/* ============================================================
   17. ANIMAÇÕES — fade-in no scroll
============================================================ */

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Delay escalonado para grupos */
.fade-in:nth-child(2) { transition-delay: 0.1s; }
.fade-in:nth-child(3) { transition-delay: 0.2s; }
.fade-in:nth-child(4) { transition-delay: 0.3s; }
.fade-in:nth-child(5) { transition-delay: 0.4s; }

/* Respeitar preferência de movimento reduzido */
@media (prefers-reduced-motion: reduce) {
    .fade-in {
        opacity: 1;
        transform: none;
        transition: none;
    }
    html {
        scroll-behavior: auto;
    }
    @keyframes scrollPulse {
        0%, 100% { opacity: 0.5; }
    }
}

/* ============================================================
   18. RESPONSIVIDADE
============================================================ */

/* Tablet */
@media (max-width: 900px) {
    .footer__inner {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }

    .footer__nav,
    .footer__copy {
        grid-column: 1;
        text-align: left;
    }

    .footer__nav-list {
        align-items: flex-start;
    }

    .platforms-grid {
        grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
    }
}

/* Mobile */
@media (max-width: 600px) {

    /* Header */
    .header__nav {
        display: none;
    }

    .header__menu-toggle {
        display: block;
    }

    /* Hero */
    .hero__content {
        padding-bottom: var(--space-2xl);
    }

    .hero__logo .logo-img {
        height: 40px;
    }

    .hero__headline {
        font-size: clamp(2.5rem, 12vw, 4rem);
    }

    .hero__ctas {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-sm);
    }

    .hero__ctas .btn {
        width: 100%;
        justify-content: center;
    }

    /* Seções */
    .section {
        padding-top: var(--space-2xl);
        padding-bottom: var(--space-2xl);
    }

    /* Hero image — focar no rosto */
    .hero__image {
        object-position: center 20%;
    }

    /* Manifesto quote */
    .manifesto-quote {
        padding-left: var(--space-md);
    }

    /* Social grid */
    .social-grid {
        grid-template-columns: 1fr;
    }

    /* Platforms grid */
    .platforms-grid {
        grid-template-columns: 1fr 1fr;
    }

    /* Spotify embed height */
    .spotify-embed iframe {
        height: 232px;
    }

    /* Contato */
    .contato__email {
        font-size: clamp(1.25rem, 5vw, 1.75rem);
        word-break: break-all;
    }

    /* Footer */
    .footer__inner {
        gap: var(--space-lg);
    }

    .footer__social {
        gap: var(--space-md);
    }
}

/* Mobile pequeno */
@media (max-width: 400px) {
    .platforms-grid {
        grid-template-columns: 1fr;
    }
}

/* Desktop large */
@media (min-width: 1400px) {
    .hero__content {
        padding-bottom: var(--space-3xl);
    }
}