/* ===== Lokalni fontovi (woff2, variable) - folder /fonts ===== */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('fonts/inter-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('fonts/inter-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url('fonts/space-grotesk-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url('fonts/space-grotesk-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 100 800;
  font-display: swap;
  src: url('fonts/jetbrains-mono-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 100 800;
  font-display: swap;
  src: url('fonts/jetbrains-mono-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}

:root {
  --font-heading: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-code: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

:root {
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --bg-main: #ffffff;
  --bg-alt: #f8fafc;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --card-bg: #ffffff;
  --border-color: #e2e8f0;
  --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.03);
}

[data-theme="dark"] {
  --primary: #6366f1;
  --primary-hover: #818cf8;
  --bg-main: #090d16;
  --bg-alt: #0f172a;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --card-bg: #1e293b;
  --border-color: #334155;
  --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.4);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Navigacija */
.navbar {
  position: sticky;
  top: 0;
  background-color: var(--bg-main);
  border-bottom: 1px solid var(--border-color);
  z-index: 100;
  backdrop-filter: blur(8px);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-main);
  text-decoration: none;
}

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

.nav-links {
  display: flex;
  gap: 25px;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-weight: 500;
  transition: color 0.2s;
}

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

.theme-toggle {
  background: none;
  border: 1px solid var(--border-color);
  padding: 8px 12px;
  border-radius: 8px;
  cursor: pointer;
  color: var(--text-main);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text-main);
}

/* Hero */
.hero {
  padding: 90px 0 60px;
  text-align: center;
}

.badge {
  display: inline-block;
  background: rgba(99, 102, 241, 0.12);
  color: var(--primary);
  font-weight: 600;
  font-size: 0.85rem;
  padding: 6px 16px;
  border-radius: 30px;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}

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

.sub-typed {
  font-size: 1.6rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 20px;
  min-height: 2.2rem;
}

#typed-text {
  color: var(--primary);
  border-right: 2px solid var(--primary);
  animation: blink 0.75s step-end infinite;
}

@keyframes blink {
  50% { border-color: transparent; }
}

.hero-desc {
  max-width: 650px;
  margin: 0 auto 30px;
  color: var(--text-muted);
  font-size: 1.1rem;
}

.hero-btns {
  display: flex;
  gap: 15px;
  justify-content: center;
  margin-bottom: 50px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  border: none;
}

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

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

.btn-outline {
  border: 1px solid var(--border-color);
  background: var(--card-bg);
  color: var(--text-main);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.btn-block {
  width: 100%;
  justify-content: center;
}

/* Statistike */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 750px;
  margin: 0 auto;
}

.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  padding: 24px;
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary);
}

.stat-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 4px;
}

/* Sekcije */
.section {
  padding: 80px 0;
}

.bg-alt {
  background-color: var(--bg-alt);
}

.section-title {
  text-align: center;
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.section-title span {
  color: var(--primary);
}

.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: 40px;
  font-size: 1.05rem;
}

/* O meni */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 40px;
  align-items: center;
}

.avatar-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  padding: 40px 20px;
  border-radius: 20px;
  text-align: center;
  box-shadow: var(--shadow);
}

.avatar-icon {
  font-size: 4rem;
  margin-bottom: 15px;
}

.perks-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
  margin-top: 25px;
}

.perk {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  color: var(--text-main);
}

.perk .ic {
  color: var(--primary);
}

/* Tehnologije */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 25px;
}

.skill-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  padding: 30px 25px;
  border-radius: 16px;
  text-align: center;
  box-shadow: var(--shadow);
}

.skill-card .ic {
  font-size: 3rem;
  display: block;
  margin: 0 auto;
  margin-bottom: 15px;
}

.skill-card h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.skill-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Projekti */
.filter-buttons {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 35px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 8px 18px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
}

.filter-btn.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 25px;
}

.project-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.project-banner {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
}

.bg-grad-1 { background: linear-gradient(135deg, #f6d365, #fda085); }
.bg-grad-2 { background: linear-gradient(135deg, #a1c4fd, #c2e9fb); }
.bg-grad-3 { background: linear-gradient(135deg, #84fab0, #8fd3f4); }

.project-body {
  padding: 24px;
}

.project-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 8px;
}

.project-tech {
  display: flex;
  gap: 8px;
  margin-top: 15px;
}

.project-tech span {
  font-size: 0.75rem;
  background: var(--bg-alt);
  border: 1px solid var(--border-color);
  padding: 3px 8px;
  border-radius: 4px;
  color: var(--text-muted);
}

/* Kontakt */
.contact-wrap {
  max-width: 600px;
  margin: 0 auto;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  padding: 35px;
  border-radius: 20px;
  box-shadow: var(--shadow);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: var(--bg-main);
  color: var(--text-main);
  font-size: 0.95rem;
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
}

.alert-box {
  margin-top: 20px;
  padding: 15px;
  border-radius: 8px;
  font-weight: 600;
  text-align: center;
}

.alert-box.success {
  background: rgba(16, 185, 129, 0.15);
  color: #10b981;
}

.hidden { display: none; }

/* Footer */
.footer {
  padding: 30px 0;
  border-top: 1px solid var(--border-color);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .hero h1 { font-size: 2.2rem; }
  .about-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
  .hamburger { display: flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--bg-main);
    flex-direction: column;
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
  }
  .nav-links.active { display: flex; }
}
/* ==========================================================
   ULEPŠANJA: glass efekat, hover, senke, animacije
   ========================================================== */
:root {
  --glass-bg: rgba(255, 255, 255, 0.65);
  --glass-border: rgba(15, 23, 42, 0.08);
  --glow: rgba(79, 70, 229, 0.25);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}
[data-theme="dark"] {
  --glass-bg: rgba(30, 41, 59, 0.45);
  --glass-border: rgba(255, 255, 255, 0.09);
  --glow: rgba(99, 102, 241, 0.45);
  --shadow: 0 12px 40px -8px rgba(0, 0, 0, 0.55);
}

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

/* Pozadina sa svetlosnim "mrljama" (vidi se kroz glass) */
body {
  background-image:
    radial-gradient(600px circle at 10% 5%, rgba(99, 102, 241, 0.14), transparent 60%),
    radial-gradient(700px circle at 90% 35%, rgba(236, 72, 153, 0.10), transparent 60%),
    radial-gradient(600px circle at 20% 85%, rgba(56, 189, 248, 0.12), transparent 60%);
  background-attachment: fixed;
}
[data-theme="dark"] body,
body[data-theme="dark"] {
  background-image:
    radial-gradient(700px circle at 10% 5%, rgba(99, 102, 241, 0.28), transparent 60%),
    radial-gradient(800px circle at 90% 35%, rgba(236, 72, 153, 0.16), transparent 60%),
    radial-gradient(700px circle at 20% 85%, rgba(14, 165, 233, 0.20), transparent 60%);
}
.bg-alt { background-color: transparent; background-image: linear-gradient(var(--glass-bg), var(--glass-bg)); }
.bg-alt { background-color: rgba(127, 127, 160, 0.06); background-image: none; }

/* Navigacija - glass */
.navbar {
  background-color: var(--glass-bg);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  backdrop-filter: blur(16px) saturate(160%);
  border-bottom: 1px solid var(--glass-border);
}
.nav-links a { position: relative; }
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: -4px; height: 2px; width: 100%;
  background: var(--primary); transform: scaleX(0); transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.nav-links a:hover::after { transform: scaleX(1); }
.theme-toggle { transition: transform 0.3s var(--ease), box-shadow 0.3s, border-color 0.3s; }
.theme-toggle:hover { transform: rotate(18deg) scale(1.08); border-color: var(--primary); box-shadow: 0 0 18px var(--glow); }

/* Naslov sa gradijentom */
.hero h1 .highlight, .section-title span {
  background: linear-gradient(90deg, var(--primary), #ec4899);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.badge { border: 1px solid var(--glass-border); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); }

/* Dugmad */
.btn { transition: transform 0.3s var(--ease), box-shadow 0.3s, background 0.3s, border-color 0.3s, color 0.3s; }
.btn:hover { transform: translateY(-3px); }
.btn:active { transform: translateY(-1px) scale(0.98); }
.btn-primary { background: linear-gradient(135deg, var(--primary), #8b5cf6); box-shadow: 0 8px 20px -6px var(--glow); }
.btn-primary:hover { background: linear-gradient(135deg, var(--primary-hover), #7c3aed); box-shadow: 0 14px 30px -6px var(--glow); }
.btn-outline { -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); }
.btn .ic { transition: transform 0.3s var(--ease); }
.btn:hover .ic-arrow { transform: translateX(4px); }

/* Sve kartice: glass + lift + glow */
.stat-card, .skill-card, .avatar-card, .project-card, .contact-wrap {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  backdrop-filter: blur(18px) saturate(150%);
  transition: transform 0.45s var(--ease), box-shadow 0.45s var(--ease), border-color 0.3s;
  will-change: transform;
}
.stat-card:hover, .skill-card:hover, .avatar-card:hover {
  transform: translateY(-8px);
  border-color: var(--primary);
  box-shadow: 0 22px 45px -12px var(--glow);
}
.skill-card .ic { transition: transform 0.4s var(--ease); }
.skill-card:hover .ic { transform: scale(1.2) rotate(-6deg); }

/* Projekti - kartice kao linkovi */
a.project-card { display: block; color: inherit; text-decoration: none; position: relative; cursor: pointer; }
.project-card { transform-style: preserve-3d; }
.project-card:hover {
  border-color: var(--primary);
  box-shadow: 0 28px 60px -14px var(--glow);
}
.project-card:not(.is-tilting):hover { transform: translateY(-10px); }
.project-card.is-tilting { transition: transform 0.12s linear, box-shadow 0.45s var(--ease), border-color 0.3s; }
.project-card::after { /* sjaj koji prati miš */
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0;
  background: radial-gradient(320px circle at var(--mx, 50%) var(--my, 50%), rgba(255, 255, 255, 0.16), transparent 60%);
  transition: opacity 0.3s;
}
.project-card:hover::after { opacity: 1; }
.project-banner { transition: font-size 0.5s var(--ease), filter 0.5s; overflow: hidden; }
.project-card:hover .project-banner { font-size: 4.2rem; filter: saturate(1.2); }
.project-body h3 { margin-bottom: 6px; }
.project-body p { color: var(--text-muted); font-size: 0.95rem; }
.visit-link {
  display: inline-flex; align-items: center; gap: 8px; margin-top: 16px;
  font-weight: 600; font-size: 0.9rem; color: var(--primary);
}
.visit-link .ic { transition: transform 0.3s var(--ease); }
.project-card:hover .visit-link .ic { transform: translate(4px, -4px); }
.project-card:focus-visible, .btn:focus-visible, .filter-btn:focus-visible, .theme-toggle:focus-visible {
  outline: 2px solid var(--primary); outline-offset: 3px;
}

/* Filter dugmad */
.filter-btn { transition: transform 0.3s var(--ease), box-shadow 0.3s, background 0.3s, color 0.3s; -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); }
.filter-btn:hover { transform: translateY(-2px); color: var(--primary); border-color: var(--primary); }
.filter-btn.active { box-shadow: 0 8px 20px -6px var(--glow); }
.filter-btn.active:hover { color: white; }

/* Forma */
.form-group input, .form-group select, .form-group textarea {
  background: rgba(127, 127, 160, 0.08); transition: border-color 0.3s, box-shadow 0.3s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { box-shadow: 0 0 0 4px var(--glow); }
.perk { transition: transform 0.3s var(--ease); }
.perk:hover { transform: translateX(6px); }

/* Pojavljivanje pri skrolovanju */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.visible { opacity: 1; transform: none; }
.project-card.reveal.visible { transition: transform 0.45s var(--ease), box-shadow 0.45s var(--ease), border-color 0.3s; }

/* Mobilni meni - glass */
@media (max-width: 768px) {
  .nav-links { background: var(--glass-bg); -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px); }
  .project-card:not(.is-tilting):hover { transform: translateY(-4px); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}

/* Raspored projekata: 3 + 2 (centrirano) */
.projects-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 25px; }
.projects-grid .project-card { flex: 0 1 calc((100% - 50px) / 3); min-width: 0; }
@media (max-width: 900px) { .projects-grid .project-card { flex-basis: calc((100% - 25px) / 2); } }
@media (max-width: 600px) { .projects-grid .project-card { flex-basis: 100%; } }

.alert-box.error { background: rgba(239, 68, 68, 0.15); color: #ef4444; }
.btn[disabled] { opacity: 0.7; cursor: wait; transform: none; }
.hp-field { position: absolute; left: -9999px; opacity: 0; height: 0; width: 0; }

/* Inline SVG ikonice (zamena za Font Awesome) */
.ic { width: 1em; height: 1em; fill: currentColor; vertical-align: -0.125em; flex-shrink: 0; }

/* Tipografija */
h1, h2, h3, h4 { font-family: var(--font-heading); }
button, input, select, textarea { font-family: inherit; }
code, pre, .tech-stack, .project-tech span { font-family: var(--font-code); }