@layer reset, base, layout, components, utilities;

@layer reset {
  /* Box sizing and margins reset */
  *, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }

  body {
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
  }

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

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

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

  ul, ol {
    list-style: none;
  }
}

@layer base {
  :root {
    /* Color Palette - Light-dark tokens using OKLCH for vibrancy */
    --bg-base-light: oklch(98% 0.005 240);
    --bg-base-dark: oklch(12% 0.012 245);
    
    --bg-surface-light: oklch(95% 0.008 240 / 70%);
    --bg-surface-dark: oklch(16% 0.015 245 / 45%);
    
    --border-light: oklch(85% 0.01 240 / 60%);
    --border-dark: oklch(24% 0.02 245 / 50%);

    --text-primary-light: oklch(20% 0.015 240);
    --text-primary-dark: oklch(96% 0.005 240);

    --text-secondary-light: oklch(45% 0.015 240);
    --text-secondary-dark: oklch(75% 0.01 240);

    --accent-glow-light: oklch(60% 0.18 250 / 15%);
    --accent-glow-dark: oklch(65% 0.22 255 / 12%);

    --color-nav-bg-light: oklch(98% 0.005 240 / 80%);
    --color-nav-bg-dark: oklch(12% 0.012 245 / 80%);

    /* Service Accents */
    --color-programming: oklch(70% 0.17 195); /* Neon Cyan */
    --color-design: oklch(65% 0.22 305);      /* Neon Purple/Magenta */
    --color-music: oklch(68% 0.16 42);        /* Sunset Orange */
    --color-pedals: oklch(74% 0.15 82);       /* Warm Amber/Gold */
    --color-printing: oklch(70% 0.15 142);    /* Emerald Green */

    /* Defaults resolving with light-dark() */
    --bg-base: light-dark(var(--bg-base-light), var(--bg-base-dark));
    --bg-surface: light-dark(var(--bg-surface-light), var(--bg-surface-dark));
    --border-color: light-dark(var(--border-light), var(--border-dark));
    --text-primary: light-dark(var(--text-primary-light), var(--text-primary-dark));
    --text-secondary: light-dark(var(--text-secondary-light), var(--text-secondary-dark));
    --accent-glow: light-dark(var(--accent-glow-light), var(--accent-glow-dark));
    --nav-bg: light-dark(var(--color-nav-bg-light), var(--color-nav-bg-dark));

    /* UI colors */
    --scrollbar-track: light-dark(oklch(90% 0.005 240), oklch(18% 0.012 245));
    --scrollbar-thumb: light-dark(oklch(70% 0.01 240), oklch(30% 0.015 245));

    color-scheme: light dark;
    scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
    scrollbar-width: thin;
  }

  /* Fallback for browsers without light-dark support */
  @media (prefers-color-scheme: dark) {
    :root {
      --bg-base: var(--bg-base-dark);
      --bg-surface: var(--bg-surface-dark);
      --border-color: var(--border-dark);
      --text-primary: var(--text-primary-dark);
      --text-secondary: var(--text-secondary-dark);
      --accent-glow: var(--accent-glow-dark);
      --nav-bg: var(--color-nav-bg-dark);
      --scrollbar-track: oklch(18% 0.012 245);
      --scrollbar-thumb: oklch(30% 0.015 245);
    }
  }

  /* Support setting theme explicitly via HTML attributes */
  html[data-theme="light"] {
    --bg-base: var(--bg-base-light);
    --bg-surface: var(--bg-surface-light);
    --border-color: var(--border-light);
    --text-primary: var(--text-primary-light);
    --text-secondary: var(--text-secondary-light);
    --accent-glow: var(--accent-glow-light);
    --nav-bg: var(--color-nav-bg-light);
    --scrollbar-track: oklch(90% 0.005 240);
    --scrollbar-thumb: oklch(70% 0.01 240);
    color-scheme: light;
  }

  html[data-theme="dark"] {
    --bg-base: var(--bg-base-dark);
    --bg-surface: var(--bg-surface-dark);
    --border-color: var(--border-dark);
    --text-primary: var(--text-primary-dark);
    --text-secondary: var(--text-secondary-dark);
    --accent-glow: var(--accent-glow-dark);
    --nav-bg: var(--color-nav-bg-dark);
    --scrollbar-track: oklch(18% 0.012 245);
    --scrollbar-thumb: oklch(30% 0.015 245);
    color-scheme: dark;
  }

  html {
    scroll-behavior: smooth;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-base);
    color: var(--text-primary);
    transition: background-color 0.4s ease, color 0.4s ease;
  }

  /* Accessibility Focus Outline */
  :focus-visible {
    outline: 2px solid var(--color-programming);
    outline-offset: 4px;
  }

  /* Headings typography balance */
  h1, h2, h3, h4, h5, h6 {
    font-family: 'Outfit', sans-serif;
    color: var(--text-primary);
    font-weight: 600;
    line-height: 1.25;
    text-wrap: balance; /* Legibility guideline */
  }

  p {
    font-size: 1rem;
    color: var(--text-secondary);
  }

  .monospaced {
    font-family: 'Fira Code', monospace;
  }
}

@layer layout {
  .container {
    width: 100%;
    max-width: 1200px;
    margin-inline: auto;
    padding-inline: 1.5rem;
  }

  /* Header Styles */
  .app-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background-color: var(--nav-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.3s ease, border-color 0.3s ease;
  }

  .header-container {
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .logo-link {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-family: 'Outfit', sans-serif;
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
  }

  .logo-accent {
    color: var(--color-programming);
  }

  .logo-text {
    color: var(--text-primary);
  }

  .desktop-nav .nav-list {
    display: flex;
    gap: 2rem;
  }

  .nav-item {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color 0.2s ease;
    padding: 0.5rem;
  }

  .nav-item:hover {
    color: var(--text-primary);
  }

  .header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
  }

  /* Footer Styles */
  .app-footer {
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-base);
    padding-block: 2.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: background-color 0.3s ease, border-color 0.3s ease;
  }

  .footer-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    text-align: center;
  }

  @media (min-width: 768px) {
    .footer-container {
      flex-direction: row;
      justify-content: space-between;
      text-align: left;
    }
  }

  .footer-right .created-by a {
    color: var(--text-primary);
    font-weight: 500;
    border-bottom: 1px dashed var(--text-secondary);
  }

  .footer-right .created-by a:hover {
    color: var(--color-programming);
    border-bottom-color: var(--color-programming);
  }
}

@layer components {
  /* Icon Buttons & Form elements */
  .icon-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem;
    border-radius: 8px;
    transition: background-color 0.2s ease, color 0.2s ease;
  }

  .icon-btn:hover {
    background-color: var(--border-color);
    color: var(--text-primary);
  }

  /* Theme icon controls */
  .theme-toggle-btn .sun-icon {
    display: none;
  }
  .theme-toggle-btn .moon-icon {
    display: block;
  }

  html[data-theme="light"] .theme-toggle-btn .sun-icon {
    display: block;
  }
  html[data-theme="light"] .theme-toggle-btn .moon-icon {
    display: none;
  }

  /* Language Selector Dropdown */
  .lang-selector-wrapper {
    position: relative;
  }

  .lang-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.8rem;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    transition: background-color 0.2s, border-color 0.2s;
  }

  .lang-btn:hover {
    background-color: var(--bg-surface);
    border-color: var(--text-secondary);
  }

  .lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background-color: var(--bg-base);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 10px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
    z-index: 101;
    min-width: 140px;
    overflow: hidden;
  }

  .lang-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .lang-opt {
    display: block;
    padding: 0.6rem 1rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: background-color 0.2s, color 0.2s;
  }

  .lang-opt:hover {
    background-color: var(--bg-surface);
    color: var(--text-primary);
  }

  /* Mobile Navigation Button and Overlay */
  .mobile-toggle {
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 110;
  }

  .hamburger-bar {
    width: 20px;
    height: 2px;
    background-color: var(--text-primary);
    transition: transform 0.3s, opacity 0.3s;
    border-radius: 2px;
  }

  @media (min-width: 768px) {
    .mobile-toggle {
      display: none;
    }
  }

  .mobile-nav-overlay {
    position: fixed;
    inset: 0;
    z-index: 99;
    background-color: var(--bg-base);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .mobile-nav-overlay.active {
    opacity: 1;
    visibility: visible;
  }

  .mobile-nav-list {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2.5rem;
  }

  .mobile-nav-item {
    font-family: 'Outfit', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-secondary);
    transition: color 0.2s;
  }

  .mobile-nav-item:hover {
    color: var(--color-programming);
  }

  body.no-scroll {
    overflow: hidden;
  }

  /* General Buttons */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.6rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: transform 0.2s, background-color 0.2s, box-shadow 0.2s;
    cursor: pointer;
  }

  .btn:active {
    transform: scale(0.98);
  }

  .btn-primary {
    background-color: var(--text-primary);
    color: var(--bg-base);
  }

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

  .btn-secondary {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
  }

  .btn-secondary:hover {
    background-color: var(--bg-surface);
    border-color: var(--text-primary);
  }

  /* Glassmorphism panels */
  .glass {
    background-color: var(--bg-surface);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
  }

  /* Scroll Reveal Animation Styles */
  .scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }

  /* SECTION: HERO */
  .hero-section {
    position: relative;
    padding-top: 140px;
    padding-bottom: 80px;
    overflow: hidden;
  }

  @media (min-width: 768px) {
    .hero-section {
      padding-top: 180px;
      padding-bottom: 120px;
    }
  }

  .hero-bg-shapes {
    position: absolute;
    inset: 0;
    z-index: -1;
    pointer-events: none;
  }

  .shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.15;
  }

  .shape-1 {
    width: 300px;
    height: 300px;
    background-color: var(--color-programming);
    top: 10%;
    left: -50px;
  }

  .shape-2 {
    width: 400px;
    height: 400px;
    background-color: var(--color-design);
    bottom: -50px;
    right: -100px;
  }

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

  .hero-badge-wrapper {
    margin-bottom: 1.5rem;
  }

  .hero-badge {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    font-family: 'Fira Code', monospace;
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0.4rem 1rem;
    border-radius: 30px;
    color: var(--text-primary);
  }

  .hero-title {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -1.5px;
    margin-bottom: 1.5rem;
  }

  @media (min-width: 768px) {
    .hero-title {
      font-size: 4rem;
      letter-spacing: -2px;
    }
  }

  .glow-text {
    text-shadow: 0 0 40px var(--accent-glow);
    background: linear-gradient(135deg, var(--text-primary), var(--color-programming));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }

  .hero-subtitle {
    font-size: 1.1rem;
    max-width: 650px;
    margin-inline: auto;
    margin-bottom: 2.5rem;
  }

  @media (min-width: 768px) {
    .hero-subtitle {
      font-size: 1.25rem;
    }
  }

  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
  }

  /* SECTION: ABOUT */
  .about-section {
    padding-block: 80px;
    border-top: 1px solid var(--border-color);
  }

  .about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
  }

  @media (min-width: 768px) {
    .about-grid {
      grid-template-columns: 2fr 3fr;
    }
  }

  .about-visual {
    display: flex;
    justify-content: center;
  }

  .visual-box {
    width: 320px;
    max-width: 100%;
    aspect-ratio: 1 / 1;
    position: relative;
    padding: 0;
    overflow: hidden;
    isolation: isolate;
  }

  .visual-box:hover {
    transform: translateY(-6px);
    border-color: var(--color-programming);
    box-shadow: 0 20px 45px -20px var(--accent-glow);
  }

  .avatar-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background-color: var(--color-programming);
    filter: blur(50px);
    opacity: 0.2;
    z-index: 1;
  }

  .avatar-photo {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    object-fit: cover;
    object-position: center;
    filter: saturate(1.05) contrast(1.02);
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .visual-box:hover .avatar-photo {
    transform: scale(1.05);
  }

  .visual-caption {
    position: absolute;
    inset-inline: 0;
    bottom: 0;
    z-index: 3;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 2.5rem 1.25rem 1rem;
    background: linear-gradient(to top, oklch(8% 0.02 245 / 82%), transparent);
  }

  .caption-name {
    font-family: 'Fira Code', monospace;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.3px;
    color: oklch(97% 0.005 240);
  }

  .tech-bar {
    display: flex;
    gap: 0.5rem;
    justify-content: flex-end;
    z-index: 2;
  }

  .tech-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--color);
    box-shadow: 0 0 8px var(--color);
  }

  .about-text-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
  }

  .section-title {
    font-size: 2rem;
    letter-spacing: -0.5px;
    text-align: center;
  }

  .section-title.text-left {
    text-align: left;
  }

  .paragraph {
    font-size: 1.05rem;
  }

  .skills-mini-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 0.5rem;
  }

  .skill-tag {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0.35rem 0.85rem;
    border-radius: 6px;
    color: var(--text-secondary);
  }

  /* SECTION: SERVICES */
  .services-section {
    padding-block: 80px;
    border-top: 1px solid var(--border-color);
  }

  .section-header {
    text-align: center;
    max-width: 600px;
    margin-inline: auto;
    margin-bottom: 4rem;
  }

  .section-header .section-title {
    margin-bottom: 1rem;
  }

  .section-subtitle {
    font-size: 1.05rem;
  }

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

  @media (min-width: 600px) {
    .services-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }

  @media (min-width: 992px) {
    .services-grid {
      grid-template-columns: repeat(3, 1fr);
    }
  }

  .service-card {
    position: relative;
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 320px;
    overflow: hidden;
  }

  /* Hover glow styling using OKLCH shadows */
  .service-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-color);
    box-shadow: 0 12px 30px -10px var(--accent-color);
  }

  .card-glow {
    position: absolute;
    top: -50px;
    right: -50px;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background-color: var(--accent-color);
    filter: blur(60px);
    opacity: 0.08;
    transition: opacity 0.3s;
  }

  .service-card:hover .card-glow {
    opacity: 0.15;
  }

  .service-icon {
    color: var(--accent-color);
    margin-bottom: 1.5rem;
  }

  .service-card-title {
    font-size: 1.35rem;
    margin-bottom: 1rem;
  }

  .service-card-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    flex-grow: 1;
  }

  .service-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
    transition: gap 0.2s;
  }

  .service-link .arrow {
    transition: transform 0.2s;
  }

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

  .service-card:hover .service-link .arrow {
    transform: translateX(4px);
  }

  /* SECTION: CONTACT */
  .contact-section {
    padding-block: 80px;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-surface);
  }

  .contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
  }

  @media (min-width: 768px) {
    .contact-grid {
      grid-template-columns: 1fr 1fr;
    }
  }

  .contact-info-panel {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
  }

  .contact-description {
    font-size: 1.1rem;
    max-width: 500px;
  }

  .contact-signature {
    display: flex;
    flex-direction: column;
    margin-top: 1rem;
  }

  .sig-name {
    font-family: 'Outfit', sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
  }

  .sig-role {
    font-family: 'Fira Code', monospace;
    font-size: 0.85rem;
    color: var(--color-programming);
  }

  .contact-card {
    padding: 2.5rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
  }

  .contact-card-title {
    font-size: 1.5rem;
  }

  .contact-card-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
  }

  .contact-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background-color: var(--text-primary);
    color: var(--bg-base);
    padding: 0.9rem 2rem;
    border-radius: 8px;
    font-weight: 700;
    font-size: 1rem;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s, background-color 0.2s, box-shadow 0.2s;
  }

  .contact-btn:hover {
    background-color: var(--color-programming);
    color: oklch(12% 0.012 245);
    box-shadow: 0 0 25px rgba(0, 240, 255, 0.3);
  }

  .contact-btn:active {
    transform: scale(0.97);
  }

  .contact-fallback-text {
    font-size: 0.8rem;
    color: var(--text-secondary);
  }

  /* SUBPAGES SPECIFICS */
  .subpage-hero {
    border-bottom: 1px solid var(--border-color);
  }

  .back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Fira Code', monospace;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    transition: color 0.2s;
  }

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

  .back-link .arrow {
    transition: transform 0.2s;
  }

  .back-link:hover .arrow {
    transform: translateX(-4px);
  }

  .shape-sub {
    width: 500px;
    height: 350px;
    background-color: var(--accent-color);
    top: -50px;
    right: -100px;
    opacity: 0.12;
  }

  .subpage-content-section {
    padding-block: 60px 100px;
  }

  .subpage-intro-panel {
    padding: 2.5rem;
    margin-bottom: 4rem;
  }

  .subpage-intro-title {
    font-size: 1.75rem;
    margin-bottom: 1rem;
  }

  .subpage-intro-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
  }

  .subpage-items-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  @media (min-width: 768px) {
    .subpage-items-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }

  .subpage-item {
    position: relative;
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 1.5rem;
    border-radius: 16px;
    border-left: 4px solid var(--accent-color);
  }

  .subpage-item-header {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }

  .subpage-item-tag {
    font-family: 'Fira Code', monospace;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-color);
    text-transform: uppercase;
  }

  .subpage-item-title {
    font-size: 1.5rem;
  }

  .subpage-item-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    flex-grow: 1;
  }
}

@layer utilities {
  .no-scroll {
    overflow: hidden;
  }
}