/* ===========================
   CSS Variables & Themes
   =========================== */
:root {
  --text: #000000;
  --background: #ebf4ff;
  --primary: #17c44e;
  --secondary: #c59696;
  --accent: #a65454;

  --card-bg: #f0f8ff;
  --card-border: #cccccc;
  --nav-bg: rgba(235, 244, 255, 0.9);
  --code-bg: #1a1a2e;
  --code-text: #e0e0e0;

  /* Panel (surface that scrolls over the start section) */
  --panel-bg: #ebf4ff;
  --panel-text: #000000;
  --panel-card-bg: #f5faff;
  --panel-card-border: #c8d8e8;
  --panel-muted: rgba(0, 0, 0, 0.55);
  --panel-divider: #d0dcea;

  --shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  --shadow-hover: 0 0 20px rgba(23, 196, 78, 0.4);

  --radius: 10px;
  --radius-sm: 8px;
  --radius-pill: 999px;
  --transition: 0.3s ease;
}

[data-theme="dark"] {
  --text: #ffffff;
  --background: #000914;
  --primary: #3be872;
  --secondary: #693a3a;
  --accent: #ab5959;

  --card-bg: #0d1520;
  --card-border: #1e2a3a;
  --nav-bg: rgba(0, 9, 20, 0.9);
  --code-bg: #0d1117;
  --code-text: #c9d1d9;

  /* Panel in dark mode — slightly different from page bg */
  --panel-bg: #060610;
  --panel-text: #d8d8e4;
  --panel-card-bg: #10101c;
  --panel-card-border: #1e1e2e;
  --panel-muted: rgba(216, 216, 228, 0.5);
  --panel-divider: #181828;

  --shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-hover: 0 0 20px rgba(59, 232, 114, 0.35);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 20px;
}

body {
  font-family: 'DM Sans', 'Segoe UI', sans-serif;
  background: var(--background);
  color: var(--text);
  line-height: 1.6;
  transition: background var(--transition), color var(--transition);
  overflow-x: hidden;
}

h1, h2, h3 {
  font-family: 'Space Grotesk', 'Segoe UI', sans-serif;
  font-weight: 700;
  line-height: 1.2;
}

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

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

/* ===========================
   Navigation
   =========================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--card-border);
  padding: 0 2rem;
  transition: background var(--transition);
}

.nav_inner {
  max-width: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav_logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.5px;
}

.nav_links {
  display: flex;
  gap: 0.35rem;
  list-style: none;
  align-items: center;
}

.nav_links a {
  padding: 0.45rem 1rem;
  border-radius: var(--radius-pill);
  font-size: 0.9rem;
  font-weight: 500;
  transition: background var(--transition), color var(--transition);
}

.nav_links a:hover,
.nav_links a.active {
  background: var(--primary);
  color: #000;
}

.theme-toggle {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-pill);
  padding: 0.4rem 0.7rem;
  cursor: pointer;
  font-size: 1.1rem;
  transition: background var(--transition);
  color: var(--text);
  line-height: 1;
}

.theme-toggle:hover {
  background: var(--primary);
  color: #000;
}

/* ===========================
   Sections (shared)
   =========================== */
.section {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
  padding: 5rem 5rem 5rem;
}

.section_title {
  font-size: 2rem;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 1rem;
}

.section_label {
  font-size: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 1rem;
}

.section_subtitle {
  opacity: 0.55;
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
  margin-top: -0.75rem;
}

.section_title .highlight {
  color: var(--primary);
}


/* ===========================
   Section Divider
   =========================== */
.section-divider {
  border: none;
  height: 1px;
  background: var(--panel-divider);
  max-width: 1100px;
  margin: 0 auto;
}

/* ===========================
   Start (Hero) — Sticky
   =========================== */
.start-wrapper {
  position: relative;
  z-index: 1;
  height: 200vh;
}

.start {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 64px;
  background: var(--background);
  transition: background var(--transition);
  overflow: hidden;
}

.start_bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse at 15% 75%, rgba(23, 196, 78, 0.1) 0%, transparent 100%),
    radial-gradient(ellipse at 75% 15%, rgba(166, 84, 84, 0.1) 0%, transparent 100%);
  pointer-events: none;
}

[data-theme="dark"] .start_bg {
  background:
    radial-gradient(ellipse at 15% 75%, rgba(59, 232, 114, 0.08) 0%, transparent 100%),
    radial-gradient(ellipse at 75% 15%, rgba(171, 89, 89, 0.08) 0%, transparent 100%);
}

.starfield {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

.fade-overlay {
  position: absolute;
  inset: 0;
  background: var(--background);
  opacity: 0;
  z-index: 2;
  pointer-events: none;
  transition: opacity 0.1s ease-out;
}

.start_content {
  max-width: 700px;
  position: relative;
  z-index: 3;
}

.start_avatar {
  width: 130px;
  height: 130px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--primary);
  margin: 0 auto 2rem;
}

.start_greeting {
  font-size: 1rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.start_name {
  font-size: clamp(2.8rem, 6vw, 4.2rem);
  margin-bottom: 0.75rem;
}

.start_tagline {
  font-size: 1.1rem;
  opacity: 0.65;
  margin-bottom: 2.5rem;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

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

/* ===========================
   Content Panel (scrolls over start — unified dark surface)
   =========================== */
.content-panel {
  position: relative;
  z-index: 2;
  background: var(--panel-bg);
  color: var(--panel-text);
  border-radius: 24px 24px 0 0;
  margin-top: -100vh;
  min-height: 100vh;
  box-shadow: 0 -8px 40px rgba(0, 0, 0, 0.12);
  transition: background var(--transition), color var(--transition);
}

[data-theme="dark"] .content-panel {
  box-shadow: 0 -8px 40px rgba(0, 0, 0, 0.5);
}

/* ===========================
   Buttons
   =========================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.8rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
}

.btn--primary {
  background: var(--primary);
  color: #000;
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.btn--secondary {
  background: transparent;
  border-color: var(--accent);
  color: var(--accent);
}

.btn--secondary:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-2px);
}

/* ===========================
   Code Block
   =========================== */
.code-block {
  background: #0a0a14;
  border-radius: var(--radius);
  padding: 1.5rem 1.75rem;
  margin-bottom: 2.5rem;
  font-family: 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
  font-size: 0.85rem;
  color: var(--code-text);
  overflow-x: auto;
  border: 1px solid var(--panel-card-border);
}

.code-block_dots {
  display: flex;
  gap: 6px;
  margin-bottom: 1rem;
}

.code-block_dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.code-block_dots span:nth-child(1) { background: #ff5f57; }
.code-block_dots span:nth-child(2) { background: #febc2e; }
.code-block_dots span:nth-child(3) { background: #28c840; }

.code-block .keyword { color: #ff79c6; }
.code-block .string { color: #f1fa8c; }
.code-block .function { color: #50fa7b; }
.code-block .comment { color: #6272a4; }

/* ===========================
   Portfolio Cards (inside panel)
   =========================== */
.portfolio-grid {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.portfolio-card {
  background: var(--panel-card-bg);
  color: var(--panel-text);
  border-radius: var(--radius);
  padding: 0;
  overflow: hidden;
  border: 2px solid var(--panel-card-border);
  width: 280px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
  font-family: 'DM Sans', sans-serif;
  position: relative;
  z-index: 1;
  transition: all 0.3s ease;
  text-align: left;
}

.portfolio-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--primary);
}

.portfolio-card_image {
  width: 100%;
  height: 180px;
  overflow: hidden;
}

.portfolio-card_image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.portfolio-card:hover .portfolio-card_image img {
  transform: scale(1.05);
}

.portfolio-card_image--blur img {
  filter: blur(3px);
  transform: scale(1.05);
}

.portfolio-card:hover .portfolio-card_image--blur img {
  filter: blur(0.5px);
  transform: scale(1.3);
}

.portfolio-card_collage {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  height: 180px;
  gap: 0;
}

.portfolio-card_collage img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 0; /* prevents grid items from overflowing */
}

.portfolio-card_placeholder {
  width: 100%;
  height: 180px;
  background: linear-gradient(135deg, var(--panel-card-border), var(--panel-bg));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--panel-muted);
  font-size: 0.8rem;
  font-weight: 500;
}

.portfolio-card_header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 14px 20px 6px;
}

.portfolio-card_icon {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

.portfolio-card_icon svg {
  width: 100%;
  height: 100%;
  fill: var(--primary);
}

.portfolio-card_title {
  font-size: 1.15rem;
  font-weight: 700;
}

.portfolio-card_desc {
  margin: 8px 20px;
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--panel-muted);
}

.portfolio-card_link {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0 20px 16px;
  display: block;
  opacity: 0.60;
  transition: opacity var(--transition);
}

.portfolio-card_link:hover {
  opacity: 1;
}

/* ===========================
   Skills
   =========================== */
.skills-section {
  margin-top: 3rem;
}

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

.skill-pill {
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 500;
  background: var(--panel-card-bg);
  border: 1px solid var(--panel-card-border);
  color: var(--panel-text);
  transition: all var(--transition);
}

.skill-pill:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* ===========================
   About Section
   =========================== */
#about {
  min-height: 80vh;
  padding-bottom: 6rem;
}

.about-content {
  display: grid;
  max-width: 720px;
  gap: 3rem;
  align-items: center;
  margin-top: 1.5rem;
}

.about-text p {
  margin-bottom: 1rem;
  color: var(--panel-muted);
  font-size: 1rem;
}

.about-text strong {
  color: var(--panel-text);
}

.about-image {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--panel-card-border), var(--panel-bg));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: var(--panel-muted);
  font-weight: 500;
}

/* ===========================
   Footer (inside panel)
   =========================== */
.footer {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 3rem 2rem 6rem;
  border-top: 1px solid var(--panel-divider);
  margin-top: 2rem;
}

.footer_socials {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
  list-style: none;
}

.footer_socials a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--panel-card-bg);
  border: 1px solid var(--panel-card-border);
  transition: all var(--transition);
}

.footer_socials a svg {
  width: 18px;
  height: 18px;
  fill: var(--panel-text);
  transition: fill var(--transition);
}

.footer_socials a:hover {
  background: var(--primary);
  border-color: var(--primary);
}

.footer_socials a:hover svg {
  fill: #000;
}

.footer_copy {
  font-size: 0.82rem;
  color: var(--panel-muted);
}

/* ===========================
   Scroll Reveal
   =========================== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===========================
   Responsive
   =========================== */
@media (max-width: 900px) {
  .portfolio-grid {
    justify-content: center;
  }
}

@media (max-width: 768px) {
  .nav {
    padding: 0 1rem;
  }
  
  .nav_inner {
    gap: 1rem;
  }
  
  .nav_links {
    gap: 0.25rem;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none; /* Firefox */
  }
  
  .nav_links::-webkit-scrollbar {
    display: none; /* Chrome/Safari */
  }

  .nav_links li {
    flex-shrink: 0;
  }

  .nav_links a {
    padding: 0.35rem 0.65rem;
    font-size: 0.85rem;
    white-space: nowrap;
  }

  .start_name {
    font-size: 2.4rem;
  }

  .portfolio-grid {
    flex-direction: column;
    align-items: center;
  }

  .portfolio-card {
    width: 100%;
    max-width: 400px;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .section {
    padding: 4rem 1.25rem 2rem;
  }

  .content-panel {
    border-radius: 16px 16px 0 0;
  }
}

@media (max-width: 480px) {
  .nav_logo {
    font-size: 1.1rem;
  }

  .start_cta {
    flex-direction: column;
    align-items: center;
  }
}


/* Language Toggle Button */
.lang-toggle {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 0.45rem 0.75rem;
}