/* === 01. RESET & BASE === */
/*
 * Modern CSS reset with minimal footprint.
 * Ensures consistent box-sizing and removes default margins/paddings.
 * We keep list styles for semantic ul/ol but reset padding for custom bullets.
 */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px; /* Prevent fixed header overlap on anchor jump */
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  transition: background-color 0.3s ease, color 0.2s ease;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* === 02. CSS VARIABLES & THEMING === */
/*
 * Dark Mode is the default (Street Prestige aesthetic).
 * Light mode overrides will be defined later using the checkbox hack.
 */
:root {
  /* --- Colors (Dark Mode Defaults) --- */
  --color-bg:           #070709;      /* near-black, slight blue tint */
  --color-bg-secondary: #10101A;      /* panel / section backgrounds */
  --color-bg-card:      #16161F;      /* card / article surfaces */
  --color-primary:      #E63946;      /* Spider-red / Kendrick red — dominant accent */
  --color-secondary:    #3A86FF;      /* electric blue — night sky, links */
  --color-accent:       #FFBE0B;      /* Avicii gold — triangle and highlights */
  --color-text:         #F1FAEE;      /* near-white warm text */
  --color-text-muted:   #8892A4;      /* secondary / muted text */
  --color-border:       #1E1E30;      /* subtle borders */

  /* --- Typography --- */
  --font-display: 'Bebas Neue', Impact, sans-serif;
  --font-body:    'Barlow', system-ui, -apple-system, sans-serif;
  --font-mono:    'IBM Plex Mono', 'Courier New', monospace;
  --font-size-base:    1rem;          /* 16px typically */
  --font-size-lg:      1.25rem;       /* 20px */
  --font-size-xl:      2rem;          /* 32px */
  --font-size-display: clamp(3rem, 8vw, 5rem); /* fluid hero size */

  /* --- Spacing --- */
  --space-xs:  0.5rem;   /* 8px */
  --space-sm:  1rem;     /* 16px */
  --space-md:  2rem;     /* 32px */
  --space-lg:  4rem;     /* 64px */
  --space-xl:  6rem;     /* 96px */

  /* --- Layout --- */
  --container-max:   1200px;
  --border-radius:   6px;
  --border-radius-lg: 12px;

  /* --- Effects --- */
  --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.5);
  --glow-primary: 0 0 12px rgba(230, 57, 70, 0.5), 0 0 24px rgba(230, 57, 70, 0.25);
  --glow-accent:  0 0 10px rgba(255, 190, 11, 0.4);
  --transition:   0.25s ease-in-out;
}

/* === 03. TYPOGRAPHY === */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400; /* Bebas Neue is already bold by nature */
  line-height: 1.2;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--color-text);
}

h1 {
  font-size: var(--font-size-display);
  margin-bottom: var(--space-sm);
}

h2 {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
  border-bottom: 2px solid var(--color-border);
  padding-bottom: var(--space-xs);
}

h3 {
  font-size: 1.5rem;
  margin-bottom: var(--space-xs);
}

p {
  margin-bottom: var(--space-sm);
}

a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: color var(--transition), text-shadow var(--transition);
}

a:hover,
a:focus-visible {
  color: var(--color-primary);
  text-shadow: 0 0 6px var(--color-primary);
  outline: none;
}

/* Lead text for About section */
.lead {
  font-size: var(--font-size-lg);
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

/* === 04. LAYOUT & GRID === */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section {
  padding: var(--space-lg) 0;
  position: relative;
}

/* Generic grid utilities */
.skills-grid,
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-md);
}

.about__grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-lg);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

/* === 05. HEADER & NAV === */
.site-header {
  background-color: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-sm) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  background-color: rgba(16, 16, 26, 0.85); /* fallback for browsers without backdrop */
}

@supports (backdrop-filter: blur(8px)) {
  .site-header {
    background-color: rgba(16, 16, 26, 0.7);
  }
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

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

.brand__triangle {
  font-size: 2rem;
  line-height: 1;
  color: var(--color-accent); /* Avicii gold — constant */
  text-shadow: var(--glow-accent);
  transition: transform var(--transition);
}

.brand:hover .brand__triangle {
  transform: rotate(10deg);
}

.brand__name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.05em;
  color: var(--color-text);
}

.nav-list {
  display: flex;
  list-style: none;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.nav-link {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  padding: var(--space-xs) 0;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition);
}

.nav-link:hover::after,
.nav-link:focus-visible::after {
  width: 100%;
}

.nav-link:hover {
  color: var(--color-text);
  text-shadow: none;
}

/* Theme Toggle Label */
#theme-toggle {
  display: none; /* hidden checkbox */
}

.theme-toggle-label {
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 40px;
  width: 48px;
  height: 48px;
  cursor: pointer;
  position: relative;
  transition: background-color var(--transition), border-color var(--transition);
}

.theme-toggle-icon {
  font-size: 1.5rem;
  line-height: 1;
  position: absolute;
  transition: opacity var(--transition), transform var(--transition);
}

.theme-toggle-icon:first-child { /* moon for dark */
  opacity: 1;
  transform: rotate(0);
}

.theme-toggle-icon:last-child { /* sun for light */
  opacity: 0;
  transform: rotate(-90deg) scale(0.8);
}

/* When checkbox is checked (light mode active), swap icons */
#theme-toggle:checked ~ * .theme-toggle-icon:first-child {
  opacity: 0;
  transform: rotate(90deg) scale(0.8);
}

#theme-toggle:checked ~ * .theme-toggle-icon:last-child {
  opacity: 1;
  transform: rotate(0) scale(1);
}

/* === 06. HERO SECTION === */
.hero {
  padding: var(--space-xl) 0;
  position: relative;
  overflow: hidden;
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

/* Diagonal accent stripe (Spider-Verse vibe) */
.hero::before {
  content: '';
  position: absolute;
  top: -10%;
  left: -5%;
  width: 120%;
  height: 120%;
  background: var(--color-primary);
  opacity: 0.03;
  transform: skewY(-6deg);
  z-index: 0;
  pointer-events: none;
}

.hero-container {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  min-height: 450px;
}

.hero__content {
  max-width: 700px;
}

.hero__greeting {
  display: block;
  font-family: var(--font-body);
  font-size: 1.2rem;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}

.hero__name {
  display: block;
  font-size: var(--font-size-display);
  line-height: 1;
  margin-bottom: var(--space-sm);
  color: var(--color-text);
  text-shadow: 2px 2px 0 rgba(230, 57, 70, 0.3);
}

.hero__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  max-width: 600px;
  margin-bottom: var(--space-md);
}

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

.btn {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 1.1rem;
  text-transform: uppercase;
  padding: 0.8rem 2rem;
  border-radius: var(--border-radius);
  transition: all var(--transition);
  border: 2px solid transparent;
  cursor: pointer;
  text-align: center;
}

.btn--primary {
  background-color: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  box-shadow: 0 4px 0 #9b1f2a;
}

.btn--primary:hover {
  background-color: #d62c3a;
  box-shadow: 0 2px 0 #9b1f2a;
  transform: translateY(2px);
  color: #fff;
  text-shadow: none;
  box-shadow: var(--glow-primary);
}

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

.btn--outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  box-shadow: inset 0 0 0 2px var(--color-primary);
  text-shadow: none;
}

.hero__visual {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 40%;
  height: 100%;
  background-image: radial-gradient(circle, var(--color-primary) 1.5px, transparent 1.5px);
  background-size: 28px 28px;
  opacity: 0.05;
  z-index: 1;
  pointer-events: none;
}

/* === 07. ABOUT SECTION === */
.about__text p:last-child {
  margin-bottom: 0;
}

.info-list {
  list-style: none;
  background-color: var(--color-bg-card);
  padding: var(--space-md);
  border-radius: var(--border-radius-lg);
  border-left: 4px solid var(--color-primary);
  box-shadow: var(--shadow-card);
}

.info-list li {
  margin-bottom: var(--space-sm);
  border-bottom: 1px dashed var(--color-border);
  padding-bottom: var(--space-xs);
}

.info-list li:last-child {
  border-bottom: 0;
  margin-bottom: 0;
  padding-bottom: 0;
}

.info-list strong {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-weight: 500;
}

/* === 08. SKILLS SECTION === */
.section__title {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.section__title span {
  color: var(--color-accent); /* ▲ gold always */
  font-size: 2rem;
}

.skill-category {
  background-color: var(--color-bg-card);
  padding: var(--space-md);
  border-radius: var(--border-radius-lg);
  border-left: 4px solid var(--color-primary);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition);
}

.skill-category:hover {
  transform: translateY(-4px);
  border-left-color: var(--color-accent);
}

.skill-category__title {
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
  font-size: 1.5rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--space-xs);
}

.skill-list {
  list-style: none;
}

.skill-list li {
  padding: var(--space-xs) 0;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.skill-list li::before {
  content: '▲';
  color: var(--color-accent);
  font-size: 0.8rem;
  margin-right: var(--space-xs);
  opacity: 0.8;
}

/* === 09. PROJECTS SECTION === */
.project-card {
  background-color: var(--color-bg-card);
  padding: var(--space-md);
  border-radius: var(--border-radius-lg);
  border-left: 4px solid var(--color-primary);
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition), transform var(--transition);
}

.project-card:hover {
  box-shadow: 0 12px 32px rgba(0,0,0,0.6), var(--glow-primary);
  transform: scale(1.01);
}

.project-card__title {
  color: var(--color-primary);
}

.project-card__meta {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  margin-bottom: var(--space-sm);
}

.project-link {
  color: var(--color-secondary);
  word-break: break-all;
}

.project-highlights {
  list-style: none;
}

.project-highlights li {
  margin-bottom: var(--space-xs);
  padding-left: 1.5rem;
  position: relative;
}

.project-highlights li::before {
  content: '▹';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-size: 1.2rem;
}

/* === 10. EXPERIENCE SECTION === */
.experience-card {
  background-color: var(--color-bg-card);
  padding: var(--space-md);
  border-radius: var(--border-radius-lg);
  border-left: 4px solid var(--color-primary);
  box-shadow: var(--shadow-card);
}

.experience-card__header {
  margin-bottom: var(--space-md);
}

.experience-card__title {
  color: var(--color-primary);
}

.experience-card__company {
  font-weight: 600;
  color: var(--color-accent);
}

.experience-card__period {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.experience-highlights {
  list-style: none;
}

.experience-highlights li {
  margin-bottom: var(--space-xs);
  padding-left: 1.5rem;
  position: relative;
}

.experience-highlights li::before {
  content: '▹';
  position: absolute;
  left: 0;
  color: var(--color-secondary);
  font-size: 1.2rem;
}

/* === 11. EDUCATION SECTION === */
.education-card {
  background-color: var(--color-bg-card);
  padding: var(--space-md);
  border-radius: var(--border-radius-lg);
  border-left: 4px solid var(--color-primary);
  box-shadow: var(--shadow-card);
}

.education-card__title {
  color: var(--color-primary);
}

.education-card__institution {
  font-weight: 600;
  color: var(--color-accent);
}

.education-card__period,
.education-card__status {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.education-card__subjects h4 {
  margin-top: var(--space-sm);
  margin-bottom: var(--space-xs);
  font-size: 1.2rem;
  color: var(--color-secondary);
}

/* === 12. CERTIFICATIONS SECTION === */
.cert-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-sm);
}

.cert-item {
  background-color: var(--color-bg-card);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--border-radius);
  border-left: 4px solid var(--color-accent);
  font-weight: 500;
}

/* === 13. FOOTER === */
.site-footer {
  margin-top: auto;
  background-color: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: var(--space-md) 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer__copyright {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.footer__badge {
  font-family: var(--font-mono);
  background-color: var(--color-bg);
  padding: 0.2rem 0.5rem;
  border-radius: 20px;
  margin-left: var(--space-xs);
}

.footer__social {
  display: flex;
  list-style: none;
  gap: var(--space-md);
}

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

.footer__social a:hover {
  color: var(--color-primary);
}

/* === 14. DECORATIVE ELEMENTS === */
/* Halftone dot pattern background (global subtle texture) */
body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(circle, var(--color-primary) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.03;
  pointer-events: none;
  z-index: 9999;
}

/* === 15. LIGHT MODE OVERRIDES === */
/*
 * Light mode: "Tricolor Heroico" (Alta Legibilidade)
 * Ativado via CSS checkbox hack.
 *
 * CORREÇÃO: Seletores de alta especificidade para forçar
 * fundo branco em todas as áreas (body, header, main, footer).
 */

/* 1. Força o fundo do body e de todos os containers principais */
#theme-toggle:checked ~ .site-header,
#theme-toggle:checked ~ main,
#theme-toggle:checked ~ .site-footer,
#theme-toggle:checked ~ .hero,
#theme-toggle:checked ~ .section {
  background-color: #FFFFFF !important; /* Branco total forçado */
}

/* 2. Garante que o body em si também mude (via variável e fallback) */
body:has(#theme-toggle:checked) {
  background-color: #FFFFFF;
}

/* Como :has pode não ter suporte universal, usamos um seletor extra no body */
#theme-toggle:checked ~ * {
  /* Reaplicamos as variáveis, mas agora com !important nos fundos críticos */
  --color-bg:           #FFFFFF;
  --color-bg-secondary: #F0F4F8;
  --color-bg-card:      #E62429;
  --color-primary:      #E62429;
  --color-secondary:    #002244;
  --color-accent:       #FFBE0B;
  --color-text:         #002244;
  --color-text-muted:   #335577;
  --color-border:       #CCD5E0;
}

/* 3. Força o header a ficar branco com opacidade total (sem blur escuro) */
#theme-toggle:checked ~ .site-header {
  background-color: #FFFFFF !important;
  border-bottom: 2px solid var(--color-primary);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

/* 4. Garante que o main e todas as sections tenham fundo branco */
#theme-toggle:checked ~ main,
#theme-toggle:checked ~ main .section,
#theme-toggle:checked ~ .hero,
#theme-toggle:checked ~ .about,
#theme-toggle:checked ~ .skills,
#theme-toggle:checked ~ .projects,
#theme-toggle:checked ~ .experience,
#theme-toggle:checked ~ .education,
#theme-toggle:checked ~ .certifications,
#theme-toggle:checked ~ .contact {
  background-color: #FFFFFF !important;
}

/* 5. Footer também branco */
#theme-toggle:checked ~ .site-footer {
  background-color: #F0F4F8 !important; /* cinza claríssimo para diferenciar */
  border-top: 2px solid var(--color-primary);
}

/* 6. Ajustes de texto (fora dos cards) */
#theme-toggle:checked ~ * h1,
#theme-toggle:checked ~ * h2,
#theme-toggle:checked ~ * h3,
#theme-toggle:checked ~ * p,
#theme-toggle:checked ~ * li,
#theme-toggle:checked ~ * a {
  color: var(--color-text);
}

#theme-toggle:checked ~ * .section__title {
  color: var(--color-secondary);
  border-bottom-color: var(--color-primary);
}

/* 7. CARDS (fundo vermelho + texto branco com sombra azul) */
#theme-toggle:checked ~ * .skill-category,
#theme-toggle:checked ~ * .project-card,
#theme-toggle:checked ~ * .experience-card,
#theme-toggle:checked ~ * .education-card,
#theme-toggle:checked ~ * .cert-item,
#theme-toggle:checked ~ * .info-list {
  background-color: var(--color-bg-card) !important;
  color: #FFFFFF !important;
  text-shadow: 0 0 6px #002244;
  box-shadow: 0 8px 20px rgba(0, 34, 68, 0.2);
  border-left: 6px solid var(--color-accent) !important;
}

/* 8. Textos dentro dos cards (títulos, parágrafos, listas) */
#theme-toggle:checked ~ * .skill-category *,
#theme-toggle:checked ~ * .project-card *,
#theme-toggle:checked ~ * .experience-card *,
#theme-toggle:checked ~ * .education-card *,
#theme-toggle:checked ~ * .cert-item *,
#theme-toggle:checked ~ * .info-list * {
  color: #FFFFFF !important;
}

/* Metadados em tom mais suave */
#theme-toggle:checked ~ * .experience-card__period,
#theme-toggle:checked ~ * .education-card__period,
#theme-toggle:checked ~ * .project-card__meta,
#theme-toggle:checked ~ * .info-list .muted {
  color: #F0F0F0 !important;
  opacity: 0.9;
}

/* 9. Links dentro dos cards */
#theme-toggle:checked ~ * .skill-category a,
#theme-toggle:checked ~ * .project-card a,
#theme-toggle:checked ~ * .info-list a {
  color: #FFD966 !important;
  text-decoration: underline;
}

/* 10. Bullets (▲) dentro dos cards permanecem dourados */
#theme-toggle:checked ~ * .skill-list li::before,
#theme-toggle:checked ~ * .project-highlights li::before,
#theme-toggle:checked ~ * .experience-highlights li::before {
  color: var(--color-accent) !important;
  text-shadow: 0 0 4px #002244;
}

/* 11. Hero Section */
#theme-toggle:checked ~ .hero::before {
  background: var(--color-primary);
  opacity: 0.05;
}

#theme-toggle:checked ~ .hero .hero__name {
  color: var(--color-secondary);
  text-shadow: 4px 4px 0 rgba(230, 36, 41, 0.2);
}

/* 12. Navegação */
#theme-toggle:checked ~ .site-header .nav-link {
  color: var(--color-secondary);
}
#theme-toggle:checked ~ .site-header .nav-link:hover {
  color: var(--color-primary);
}

/* 13. Botões */
#theme-toggle:checked ~ * .btn--primary {
  background-color: var(--color-primary);
  color: white;
  box-shadow: 0 4px 0 #8B0000;
}
#theme-toggle:checked ~ * .btn--outline {
  border-color: var(--color-secondary);
  color: var(--color-secondary);
}
#theme-toggle:checked ~ * .btn--outline:hover {
  background-color: var(--color-secondary);
  color: white;
}

/* 14. Anel do escudo (Hero decoration) */
#theme-toggle:checked ~ .hero::after {
  border-color: var(--color-primary);
  opacity: 0.1;
}

/* 15. Toggle Label (Sol/Lua) */
#theme-toggle:checked ~ .site-header .theme-toggle-label {
  background-color: #FFFFFF;
  border-color: var(--color-primary);
}