/* =========================================================
   PREMIUM UI TOKENS — NON BREAKING
   ========================================================= */
:root {
  --space-0: 4px;
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;

  --easing-premium: cubic-bezier(.2,.9,.25,1);
  --speed-fast: 160ms;
  --speed-medium: 320ms;

  --accent-600: #8b3be0;
  --accent-200: rgba(168,85,247,0.12);
}

/* Focus visibility */
:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--accent-200);
  border-radius: var(--radius-sm);
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}

/* =========================================================
   VARIABLES & GLOBAL RESET
   ========================================================= */

:root {
    --bg-dark: #090613;
    --text-main: #ede9fe;
    --text-muted: #a5b4d8;
    --accent: #a855f7;
    --accent-glow: rgba(168, 85, 247, 0.45);
    --glass: rgba(168, 85, 247, 0.035);
    --glass-border: rgba(168, 85, 247, 0.18);
    --font-main: 'Inter', sans-serif;
    --font-code: 'JetBrains Mono', monospace;
    --transition: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --accent-gradient: linear-gradient(
        135deg,
        #a855f7,
        #7c3aed,
        #ec4899
    );
    
}

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


/* =========================================================
   BASE STYLES
   ========================================================= */

html, body {
    height: 100%;
}

body {
    display: flex;
    flex-direction: column;
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-main);
    overflow-x: hidden;
    line-height: 1.6;
}


/* =========================================================
   BACKGROUND EFFECTS
   ========================================================= */

/* Canvas animado */
#bg-canvas {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.4;
    pointer-events: none;
}

/* Glow que segue o cursor */
#cursor-glow {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    position: fixed;
    border-radius: 50%;
    pointer-events: none;
    transform: translate(-50%, -50%);
    z-index: -1;
    transition: width 0.2s, height 0.2s;
}


/* =========================================================
   NAVIGATION BAR
   ========================================================= */

.glass-nav {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.5rem 5%;
    display: flex;
    align-items: center;
    justify-content: space-between;

    background: var(--glass);

    /* Suporte para versões anteriores do Safari e iOS */
    -webkit-backdrop-filter: blur(12px);
  
    /* Suporte padrão (Chrome, Edge, Firefox e Safari 18+) */
    backdrop-filter: blur(12px);
  
    /* Essencial: o fundo deve ter alguma transparência para o efeito ser visível */
    background-color: var(--glass); 

    border-bottom: 1px solid var(--glass-border);
    z-index: 1000;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.img-prof {
    width: 42px;
    height: 42px;

    border-radius: 50%;
    overflow: hidden;

    background: var(--glass);
    border: 1px solid var(--glass-border);

    display: flex;
    align-items: center;
    justify-content: center;

    position: relative;

    transition: var(--transition);
}

.img-prof::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 50%;

    /* Glow púrpura neon refinado */
    box-shadow:
        0 0 0 0 var(--accent),
        0 0 14px var(--accent-glow),
        0 0 28px rgba(168, 85, 247, 0.35);

    opacity: 0;
    transition: var(--transition);
}

.img-prof img {
    width: 100%;
    height: 100%;
    object-fit: cover;

    /* Leve ajuste para harmonizar com neon */
    filter: saturate(1.08) contrast(1.05);
}

/* Hover sutil premium */
.logo:hover .img-prof {
    border-color: var(--accent);
}

.logo:hover .img-prof::after {
    opacity: 1;
}

@media (max-width: 768px) {
    .img-prof {
        width: 36px;
        height: 36px;
    }
}

.highlight {
    background: var(--accent-gradient);

    /* Define a cor do texto como transparente para o fundo aparecer */
    color: transparent;

    /* Suporte para Chrome, Safari, Edge e versões anteriores do iOS/macOS */
    -webkit-background-clip: text;

    /* Propriedade padrão para conformidade com especificações futuras e Firefox */
    background-clip: text;

    /* Exemplo de fundo (gradiente ou imagem) */
    background-image: var(--accent-gradient);

    -webkit-text-fill-color: transparent;
}

.nav-wrapper {
    display: flex;
    align-items: center;
}

/* ================================
   NAV LINKS — DESKTOP DEFAULT
================================ */

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links li {
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-main);
    font-weight: 500;
    position: relative;
    transition: color var(--speed-fast) var(--easing-premium);
}

.nav-links a:hover {
    color: white;
}

/* Botão de menu mobile */
.icon-btn {
    background: none;
    border: none;
    color: white;
    display: none;
    cursor: pointer;
}


/* =========================================================
   LANGUAGE SWITCHER (COSMIC SMOKE)
   ========================================================= */

.lang-wrapper {
    position: relative;
    margin-left: 2rem;
    display: inline-block;
    z-index: 1100;
}

/* Botão de idioma */
.lang-btn {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    color: var(--text-main);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    font-family: var(--font-code);
    transition: var(--transition);
    outline: none;
}

.lang-btn:hover {
    border-color: var(--accent);
}

/* Menu suspenso */
.lang-menu {
    position: absolute;
    top: 130%;
    right: 0;

    list-style: none;
    padding: 0.6rem;
    margin: 0;

    border-radius: 16px;

    background: radial-gradient(
        circle at top,
        rgba(255,255,255,0.12),
        var(--glass)
    );

    /* Suporte para Safari 9+ e iOS 9+ (versões antigas e estáveis) */
    -webkit-backdrop-filter: blur(16px);
  
    /* Suporte padrão para Chrome, Firefox, Edge e Safari 18+ */
    backdrop-filter: blur(16px);
  
    /* Obrigatório: o fundo deve ter alguma transparência para o blur ser visível */
    background-color: var(--glass); 

    box-shadow:
        0 0 40px rgba(59,130,246,0.15),
        inset 0 0 30px rgba(255,255,255,0.05);

    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px) scale(0.97);
    transition: all 0.25s ease;
}

/* Mantém aberto enquanto hover/focus existir */
.lang-wrapper:hover .lang-menu,
.lang-wrapper:focus-within .lang-menu {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0) scale(1);
}

/* Itens do menu */
.lang-menu li {
    padding: 0.4rem 0.8rem;
    margin: 0.2rem 0;
    border-radius: 10px;

    font-family: var(--font-code);
    font-size: 0.8rem;

    color: rgba(255,255,255,0.55);
    cursor: pointer;

    transition: var(--transition);
}

.lang-menu li:hover {
    color: #fff;
    background: rgba(255,255,255,0.08);
    box-shadow: 0 0 14px rgba(147,197,253,0.35);
}

/* Idioma ativo */
.lang-menu li.active {
    color: #fff;
    background: rgba(59,130,246,0.18);
    box-shadow: 0 0 18px rgba(59,130,246,0.45);
}


/* =========================================================
   LAYOUT
   ========================================================= */

main {
    flex: 1;
    padding-top: 80px;
    display: flex;
    flex-direction: column;
}

section {
    padding: clamp(3rem, 6vh, 4rem) 5%;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

h1, h2 {
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
}

h1 {
    font-size: 4rem;
    line-height: 1.1;
    font-weight: 800;
}

h2 {
    font-size: 2.5rem;
    border-left: 4px solid var(--accent);
    padding-left: 1rem;
}


/* =========================================================
   COMPONENTS
   ========================================================= */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;

    background: var(--accent);
    color: white;
    padding: 0.8rem 1.5rem;

    border-radius: 6px;
    border: none;
    cursor: pointer;

    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -10px var(--accent);
}

.btn.secondary {
    background: var(--glass);
    border: 1px solid var(--glass-border);
}

/* Cards */
.card {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    padding: 2rem;
    border-radius: 12px;
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
}

/* =========================================================
   CONTACT CARDS
   ========================================================= */

.contact-card {
    display: block;
    text-decoration: none;
    color: var(--text-main);

    cursor: pointer;
}

.contact-card h3 {
    margin-bottom: 0.5rem;
    color: var(--accent);
}

.contact-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.contact-card span {
    font-family: var(--font-code);
    font-size: 0.85rem;
    color: var(--text-main);
}

/* Hover refinado */
.contact-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px -20px var(--accent);
}

/* =========================================================
   FOOTER — ULTRA SUTIL
   ========================================================= */

.glass-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;

    padding: 1.2rem 5%;
    margin-top: auto;

    background: transparent;

    /* linha quase imperceptível */
    border-top: 1px solid;
    border-image: linear-gradient(
        to right,
        transparent,
        rgba(255,255,255,0.12),
        transparent
    ) 1;
}

.glass-footer p {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.65);
}

/* ======================
   SOCIAL ICONS
   ====================== */

.socials {
    display: flex;
    align-items: center;
    gap: 1.2rem;
}

.socials a {
    color: var(--text-muted);
    transition: var(--transition);
}

.socials a:hover {
    color: var(--accent);
    transform: translateY(-1px);
}

/* Tags */
.skill-tag {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    margin: 0.2rem;

    background: rgba(59, 130, 246, 0.1);
    color: var(--accent);

    border-radius: 100px;
    font-size: 0.8rem;
    font-family: var(--font-code);
}


/* =========================================================
   GRID SYSTEMS
   ========================================================= */

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

/* =========================================================
   RESPONSIVE — PREMIUM & NON-BREAKING
   ========================================================= */

/* ======================
   TABLET & MOBILE
   ====================== */
@media (max-width: 768px) {

    /* ---------- NAVIGATION ---------- */

    /* Wrapper do dropdown */
    .nav-wrapper {
        position: absolute;
        top: calc(100% + 12px);
        right: 16px;
        z-index: 1000;
    }

    /* Nav vira dropdown */
    .nav-links {
        display: none;
        flex-direction: column;
        gap: 4px;
        padding: 0.6rem;

        border-radius: 16px;

        background: radial-gradient(
            circle at top,
            rgba(255,255,255,0.12),
            var(--glass)
        );

        /* Suporte para iOS 9-17 e versões estáveis do Safari macOS */
        -webkit-backdrop-filter: blur(16px);
  
        /* Suporte padrão (Chrome, Firefox, Edge e Safari 18+) */
        backdrop-filter: blur(16px);
  
        /* Essencial: o fundo DEVE ter transparência (alpha) */
        background-color: var(--glass); 

        box-shadow:
            0 0 40px rgba(168,85,247,0.15),
            inset 0 0 30px rgba(255,255,255,0.05);

        min-width: 190px;

        opacity: 0;
        pointer-events: none;
        transform: translateY(-10px) scale(0.97);
        transition: all var(--speed-medium) var(--easing-premium);
    }

    .nav-links.open {
        display: flex;
        opacity: 1;
        pointer-events: auto;
        transform: translateY(0) scale(1);
    }

    .nav-links a {
        padding: 0.5rem 0.8rem;
        border-radius: 10px;
        font-size: 0.9rem;
    }

    .nav-links a:hover {
        background: rgba(255,255,255,0.08);
        box-shadow: 0 0 14px rgba(168,85,247,0.25);
    }

    /* Botão hamburger */
    #mobile-menu-btn {
        display: block;
        margin-left: auto;
        margin-right: 1rem;
    }

    /* ---------- TYPOGRAPHY ---------- */

    h1 {
        font-size: clamp(2.2rem, 6vw, 2.6rem);
        line-height: 1.15;
    }

    h2 {
        font-size: clamp(1.8rem, 5vw, 2.2rem);
    }

    /* ---------- GRID ---------- */

    .grid-2 {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .grid-3 {
        grid-template-columns: 1fr;
        gap: 1.6rem;
    }

    /* ---------- SECTIONS ---------- */

    section {
        padding: clamp(2.5rem, 6vh, 3.5rem) 5%;
    }

    main {
        padding-top: 72px; /* ajusta nav fixa */
    }

    /* ---------- FOOTER ---------- */

    .glass-footer {
        flex-direction: column-reverse;
        gap: 0.8rem;
        text-align: center;
    }
}

/* ======================
   SMALL PHONES
   ====================== */
@media (max-width: 420px) {

    section {
        padding: 2.2rem 4%;
    }

    .glass-footer {
        padding: 1rem 4%;
    }

    .socials {
        order: -1;
    }

    .glass-footer p {
        font-size: 0.75rem;
        line-height: 1.4;
    }
}

/* ======================
   HERO NORMALIZATION
   ====================== */

.hero--tall {
    min-height: 80vh;
    display: flex;
    align-items: center;
}

@media (max-width: 720px) {
    .hero--tall {
        min-height: fit-content;
        padding-top: var(--space-4);
        padding-bottom: var(--space-4);
    }
}