/*
  Diego Fagundez Portfolio
  Inspired by Japanese aesthetics and nature
  Design principles: Ma (negative space), Wabi-sabi (beauty in simplicity), Kanso (minimalism)
*/

/* ==========================================
   CSS Variables - Natural Japanese Palette
   ========================================== */
:root {
  /* Colors inspired by Japanese nature */
  --color-bg: #FAFAF8;           /* Washi paper white */
  --color-text: #2C3333;         /* Charcoal */
  --color-text-light: #596161;   /* Stone gray */
  --color-accent: #4A5F4F;       /* Matcha green */
  --color-accent-light: #8B9D83; /* Sage */
  --color-border: #E8E8E3;       /* Light sand */
  --color-highlight: #D4A574;    /* Bamboo */
  --color-subtle: #F5F2ED;       /* Clay */
  
  /* Typography */
  --font-sans: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-serif: 'Noto Serif JP', Georgia, serif;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
  --space-2xl: 8rem;
  
  /* Layout */
  --max-width: 1200px;
  --nav-height: 80px;
  
  /* Transitions */
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================
   Reset & Base Styles
   ========================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  font-weight: 300;
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.7;
  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: var(--transition-smooth);
}

ul {
  list-style: none;
}

/* ==========================================
   Typography
   ========================================== */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-text);
}

em {
  font-style: italic;
  color: var(--color-accent);
}

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

/* ==========================================
   Navigation
   ========================================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background-color: rgba(250, 250, 248, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: var(--transition-smooth);
}

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

.nav-logo {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 2px;
}

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

.nav-link {
  position: relative;
  font-size: 0.95rem;
  color: var(--color-text-light);
  transition: var(--transition-smooth);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-accent);
  transition: var(--transition-smooth);
}

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

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px;
}

.nav-toggle span {
  width: 25px;
  height: 2px;
  background-color: var(--color-text);
  transition: var(--transition-smooth);
}

/* Language Selector */
.language-selector {
  display: flex;
  gap: 4px;
  align-items: center;
  background-color: var(--color-subtle);
  padding: 4px;
  border-radius: 20px;
  border: 1px solid var(--color-border);
}

.lang-btn {
  background: none;
  border: none;
  padding: 6px 12px;
  font-size: 0.85rem;
  font-family: var(--font-sans);
  color: var(--color-text-light);
  cursor: pointer;
  border-radius: 16px;
  transition: var(--transition-smooth);
  font-weight: 400;
  letter-spacing: 0.5px;
}

.lang-btn:hover {
  color: var(--color-accent);
  background-color: rgba(74, 95, 79, 0.1);
}

.lang-btn.active {
  background-color: var(--color-accent);
  color: var(--color-bg);
  font-weight: 500;
}

/* ==========================================
   Hero Section
   ========================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: var(--nav-height);
  background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-subtle) 100%);
}

.hero-container {
  width: 100%;
  padding: var(--space-md);
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.hero-greeting-container {
  position: relative;
  display: inline-block;
  margin-bottom: var(--space-sm);
}

.hero-greeting {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--color-accent);
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards;
  cursor: help;
  position: relative;
  transition: var(--transition-smooth);
  padding: var(--space-xs) var(--space-sm);
  border-radius: 4px;
}

.hero-greeting:hover {
  background-color: var(--color-subtle);
  transform: translateY(-2px);
}

.hero-greeting::before {
  content: attr(data-meaning);
  position: absolute;
  bottom: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(-5px);
  background-color: var(--color-accent);
  color: var(--color-bg);
  padding: var(--space-xs) var(--space-md);
  border-radius: 6px;
  font-size: 0.85rem;
  font-family: var(--font-sans);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
  box-shadow: 0 4px 12px rgba(74, 95, 79, 0.3);
  letter-spacing: 1px;
  font-weight: 400;
}

.hero-greeting::after {
  content: '';
  position: absolute;
  bottom: calc(100% + 4px);
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-top-color: var(--color-accent);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}

.hero-greeting:hover::before,
.hero-greeting:hover::after {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.hero-title {
  font-size: clamp(3rem, 10vw, 6rem);
  font-weight: 400;
  margin-bottom: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.hero-title-line {
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards;
}

.hero-title-line:first-child {
  animation-delay: 0.2s;
}

.hero-title-line:last-child {
  animation-delay: 0.4s;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--color-text-light);
  font-weight: 300;
  letter-spacing: 3px;
  text-transform: uppercase;
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards 0.6s;
}

.hero-decoration {
  width: 60px;
  height: 2px;
  background-color: var(--color-accent);
  margin: var(--space-md) auto 0;
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards 0.8s;
}

.scroll-indicator {
  position: absolute;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-text-light);
  font-size: 0.85rem;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--color-accent), transparent);
  animation: scrollAnimation 2s ease-in-out infinite;
}

/* ==========================================
   Section Styles
   ========================================== */
section {
  padding: var(--space-2xl) 0;
}

.section-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.section-number {
  font-family: var(--font-serif);
  font-size: 0.9rem;
  color: var(--color-accent);
  font-weight: 400;
}

.section-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 400;
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -10px;
  width: 50px;
  height: 2px;
  background-color: var(--color-accent);
}

/* ==========================================
   About Section
   ========================================== */
.about {
  background-color: var(--color-bg);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.about-text {
  font-size: 1.05rem;
  line-height: 1.9;
}

.about-intro {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
  line-height: 1.6;
}

.about-text p {
  margin-bottom: var(--space-md);
  color: var(--color-text-light);
}

.about-skills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.skill-tag {
  padding: var(--space-xs) var(--space-md);
  background-color: var(--color-subtle);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  font-size: 0.9rem;
  transition: var(--transition-smooth);
}

.skill-tag:hover {
  background-color: var(--color-accent);
  color: var(--color-bg);
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.about-image {
  display: flex;
  justify-content: center;
  align-items: start;
  padding-top: var(--space-md);
}

.image-frame {
  position: relative;
  width: 100%;
  max-width: 400px;
}

.image-frame::before {
  content: '';
  position: absolute;
  top: -20px;
  left: -20px;
  right: 20px;
  bottom: 20px;
  border: 2px solid var(--color-accent);
  z-index: -1;
}

.image-frame img {
  width: 100%;
  height: auto;
  filter: grayscale(20%);
  transition: var(--transition-slow);
}

.image-frame:hover img {
  filter: grayscale(0%);
  transform: translate(-10px, -10px);
}

/* ==========================================
   Experience Section
   ========================================== */
.experience {
  background-color: var(--color-subtle);
}

.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-accent), var(--color-accent-light));
}

.timeline-item {
  position: relative;
  padding-left: var(--space-xl);
  padding-bottom: var(--space-xl);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -6px;
  top: 5px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: var(--color-accent);
  border: 3px solid var(--color-subtle);
}

.timeline-date {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

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

.timeline-company {
  font-size: 1.1rem;
  color: var(--color-text-light);
  font-weight: 400;
  margin-bottom: var(--space-md);
}

.timeline-description {
  color: var(--color-text-light);
  margin-bottom: var(--space-md);
  font-style: italic;
}

.timeline-responsibilities {
  list-style: none;
  padding-left: 0;
}

.timeline-responsibilities li {
  position: relative;
  padding-left: var(--space-md);
  margin-bottom: var(--space-sm);
  color: var(--color-text-light);
}

.timeline-responsibilities li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--color-accent);
}

/* ==========================================
   Projects Section
   ========================================== */
.projects {
  background-color: var(--color-bg);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--space-xl);
  max-width: 1000px;
  margin: 0 auto;
}

.project-card {
  background-color: var(--color-subtle);
  border: 2px solid var(--color-border);
  border-radius: 12px;
  padding: var(--space-lg);
  transition: var(--transition-smooth);
  position: relative;
}

.project-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(74, 95, 79, 0.15);
}

.project-card.featured {
  border-width: 3px;
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-md);
}

.project-title {
  font-size: 1.8rem;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.project-badge {
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.project-badge.live {
  background-color: var(--color-accent);
  color: var(--color-bg);
}

.project-badge.foundation {
  background-color: rgba(6, 182, 212, 0.15);
  color: #06b6d4;
  border: 1px solid rgba(6, 182, 212, 0.3);
}

.project-tagline {
  color: var(--color-accent);
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: var(--space-sm);
  letter-spacing: 0.5px;
}

.project-description {
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

.project-features {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.project-features span {
  padding: 4px 12px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  font-size: 0.85rem;
  color: var(--color-text);
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-lg);
}

.project-tech span {
  padding: 4px 10px;
  background-color: transparent;
  border: 1px solid var(--color-accent);
  border-radius: 4px;
  font-size: 0.8rem;
  color: var(--color-accent);
  font-family: 'Courier New', monospace;
}

.project-links {
  display: flex;
  gap: var(--space-sm);
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background-color: var(--color-accent);
  color: var(--color-bg);
  border-radius: 6px;
  font-weight: 500;
  transition: var(--transition-smooth);
  text-decoration: none;
}

.project-link:hover {
  background-color: var(--color-text);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(74, 95, 79, 0.3);
}

.project-link svg {
  width: 18px;
  height: 18px;
}

/* Venture Card Styles */
.project-card.venture {
  border-color: rgba(6, 182, 212, 0.3);
  background: linear-gradient(135deg, var(--color-subtle) 0%, rgba(6, 182, 212, 0.05) 100%);
}

.venture-logo {
  width: 60px;
  height: 60px;
  filter: brightness(0) invert(1);
}

.venture-services {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.service-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm);
  background-color: rgba(255, 255, 255, 0.5);
  border-radius: 6px;
  transition: var(--transition-smooth);
}

.service-item:hover {
  background-color: rgba(6, 182, 212, 0.1);
}

.service-icon {
  font-size: 1.2rem;
}

.venture-status {
  font-size: 0.9rem;
  color: var(--color-text-light);
  font-style: italic;
  text-align: center;
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
}

/* ==========================================
   Contact Section
   ========================================== */
.contact {
  background-color: var(--color-bg);
  text-align: center;
}

.contact-content {
  max-width: 700px;
  margin: 0 auto;
}

.contact-text {
  font-size: 1.15rem;
  line-height: 1.8;
  color: var(--color-text-light);
  margin-bottom: var(--space-xl);
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
}

.contact-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  background-color: var(--color-subtle);
  border: 2px solid var(--color-border);
  border-radius: 50px;
  font-size: 1rem;
  transition: var(--transition-smooth);
}

.contact-link:hover {
  background-color: var(--color-accent);
  color: var(--color-bg);
  border-color: var(--color-accent);
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(74, 95, 79, 0.2);
}

.contact-link svg {
  width: 20px;
  height: 20px;
}

/* ==========================================
   Footer
   ========================================== */
.footer {
  padding: var(--space-lg) 0;
  text-align: center;
  background-color: var(--color-subtle);
  border-top: 1px solid var(--color-border);
}

.footer p {
  color: var(--color-text-light);
  font-size: 0.95rem;
  margin-bottom: var(--space-xs);
}

.footer-philosophy {
  font-family: var(--font-serif);
  font-size: 0.9rem;
  color: var(--color-accent);
}

.japanese-term {
  position: relative;
  cursor: help;
  padding: 2px 6px;
  border-radius: 3px;
  transition: var(--transition-smooth);
}

.japanese-term:hover {
  background-color: rgba(74, 95, 79, 0.1);
}

.japanese-term::before {
  content: attr(data-meaning);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(-5px);
  background-color: var(--color-text);
  color: var(--color-bg);
  padding: 6px 12px;
  border-radius: 4px;
  font-size: 0.8rem;
  font-family: var(--font-sans);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  font-style: italic;
}

.japanese-term::after {
  content: '';
  position: absolute;
  bottom: calc(100% + 2px);
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--color-text);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}

.japanese-term:hover::before,
.japanese-term:hover::after {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

/* ==========================================
   Animations
   ========================================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scrollAnimation {
  0%, 100% {
    transform: translateY(0);
    opacity: 0;
  }
  50% {
    opacity: 1;
  }
}

/* ==========================================
   Responsive Design
   ========================================== */
@media (max-width: 768px) {
  :root {
    --space-lg: 3rem;
    --space-xl: 4rem;
    --space-2xl: 5rem;
  }

  .nav-container {
    flex-wrap: wrap;
  }

  .language-selector {
    order: 2;
    margin-left: auto;
    margin-right: var(--space-sm);
  }

  .nav-toggle {
    order: 3;
  }

  .nav-menu {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background-color: var(--color-bg);
    padding: var(--space-md);
    gap: var(--space-md);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-smooth);
    border-bottom: 1px solid var(--color-border);
    order: 4;
    width: 100%;
  }

  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .about-image {
    order: -1;
  }

  .image-frame {
    max-width: 300px;
  }

  .timeline::before {
    left: 0;
  }

  .timeline-item {
    padding-left: var(--space-lg);
  }

  .contact-links {
    flex-direction: column;
    align-items: stretch;
  }

  .contact-link {
    justify-content: center;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .project-card {
    padding: var(--space-md);
  }

  .project-title {
    font-size: 1.5rem;
  }

  .project-tech {
    font-size: 0.75rem;
  }

  .venture-logo {
    width: 50px;
    height: 50px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-sm);
  }

  .hero {
    padding-top: var(--nav-height);
  }

  .hero-title {
    font-size: 2.5rem;
  }

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

  .about-skills {
    gap: var(--space-xs);
  }

  .skill-tag {
    font-size: 0.85rem;
    padding: 6px var(--space-sm);
  }
}

/* ==========================================
   Print Styles
   ========================================== */
@media print {
  nav, .scroll-indicator, .footer-philosophy {
    display: none;
  }

  body {
    background: white;
    color: black;
  }

  section {
    page-break-inside: avoid;
  }
}