/* ─── RESET & MODERN VARIABLES ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0A0A0A;
  --surface: #141414;
  --surface-hvr: #111115;
  --border: rgba(255, 255, 255, 0.04);
  --border-hvr: rgba(255, 255, 255, 0.12);
  --accent: #7C5CFC;
  --accent-glow: rgba(99, 102, 241, 0.15);
  --white: #FFFFFF;
  --text-main: #F5F5F5;
  --muted: #6B6B6B;
  --dim: #3F3F46;

  --font-head: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --trans: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

html {
  scroll-behavior: smooth;
  background-color: var(--bg);
}

body {
  background: var(--bg);
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

/* ─── AMBIENT GLOWS ─── */
.ambient-glow {
  position: fixed;
  width: 70vw;
  height: 70vw;
  border-radius: 50%;
  pointer-events: none;
  z-index: -1;
  filter: blur(180px);
  opacity: 0.15;
}
.bg-glow-1 {
  top: -10%; left: -10%;
  background: var(--accent);
}
.bg-glow-2 {
  bottom: 10%; right: -10%;
  background: #EC4899;
  opacity: 0.08;
}

/* ─── UTILS ─── */
.container {
  max-width: 1536px;
  margin: 0 auto;
  padding: 0 40px;
}

@media (max-width: 768px) {
  .container { padding: 0 20px; }
}

.text-gradient {
  background: linear-gradient(135deg, #FFF 30%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ─── MODERN FLOATING NAVBAR ─── */
.navbar {
  position: fixed;
  top: 16px; left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 32px);
  max-width: 1456px;
  z-index: 1000;
  background: rgba(10, 10, 12, 0.4);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 99px;
  transition: all var(--trans);
}

.navbar.scrolled {
  top: 8px;
  background: rgba(6, 6, 8, 0.75);
  border-color: rgba(255, 255, 255, 0.08);
  box-shadow: 0 12px 40px rgba(0,0,0,0.5);
}

.nav-inner {
  padding: 10px 24px;
  height: 54px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.nav-logo img {
  height: 26px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--trans);
}
.nav-link:hover, .nav-link.active { color: var(--white); }

.nav-cta-btn {
  font-size: 13px;
  font-weight: 600;
  color: var(--white);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-hvr);
  padding: 8px 18px;
  border-radius: 99px;
  text-decoration: none;
  transition: all var(--trans);
}
.nav-cta-btn:hover {
  background: var(--white);
  color: var(--bg);
  border-color: var(--white);
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  width: 24px;
  height: 24px;
}
.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--white);
  transition: transform var(--trans), opacity var(--trans);
}

/* Opravená animace čistého X pro 3 čárky */
.hamburger.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

@media (max-width: 768px) {
  .hamburger { display: flex; }
  .nav-links {
    position: absolute;
    top: 64px; left: 0; right: 0;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    opacity: 0;
    transform: translateY(-10px);
    pointer-events: none;
    transition: all var(--trans);
  }
  .nav-links.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  .nav-link { width: 100%; text-align: center; }
  .nav-cta-btn { width: 100%; text-align: center; }
}

/* ─── HERO SECTION ─── */
.hero {
  padding: 160px 0 100px;
  min-height: 90vh;
  display: flex;
  align-items: center;
}

.hero-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 80px;
  width: 100%;
}

.hero-left {
  flex: 1;
  max-width: 800px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(99, 102, 241, 0.06);
  border: 1px solid rgba(99, 102, 241, 0.15);
  padding: 6px 14px;
  border-radius: 99px;
  margin-bottom: 28px;
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.05em;
}

.pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); opacity: 0.5; }
  50% { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.5; }
}

.hero-h1 {
  font-family: var(--font-head);
  font-size: clamp(48px, 8vw, 84px);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 0.95;
  margin-bottom: 24px;
}

.hero-desc {
  font-size: 18px;
  color: var(--muted);
  max-width: 100%;
  margin-bottom: 36px;
}

.hero-btns {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
}

.btn-fill {
  background: var(--white);
  color: var(--bg);
  font-size: 14px;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all var(--trans);
}
.btn-fill:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255,255,255,0.15);
}

.btn-ghost {
  background: transparent;
  color: var(--white);
  border: 1px solid var(--border-hvr);
  font-size: 14px;
  font-weight: 500;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all var(--trans);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.03);
  border-color: var(--white);
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.htag {
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border);
  border-radius: 99px;
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
}
.htag.lit {
  color: var(--white);
  border-color: rgba(99, 102, 241, 0.3);
  background: rgba(99, 102, 241, 0.1);
}

.hero-stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 50px 40px;
  text-align: center;
  position: relative;
  width: 400px;
  flex-shrink: 0;
}
.stat-num {
  font-family: var(--font-head);
  font-size: 64px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--white);
  line-height: 1;
}
.stat-num span { color: var(--accent); }
.stat-lbl {
  font-size: 11px;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.1em;
  margin-top: 12px;
}

@media (max-width: 1024px) {
  .hero-inner { flex-direction: column; align-items: flex-start; gap: 40px; }
  .hero { padding-top: 120px; }
  .hero-left { max-width: 100%; }
  .hero-stat { width: 100%; max-width: 100%; padding: 40px 24px; }
}

/* ─── SECTIONS GENERICS ─── */
.section { padding: 120px 0; }

.section-eyebrow {
  display: inline-block;
  margin-bottom: 12px;
}
.ey-txt {
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.15em;
}

.section-title {
  font-family: var(--font-head);
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--white);
  margin-bottom: 48px;
}

/* ─── BENTO GRID CORE ─── */
.bento {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.bc {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--trans);
  position: relative;
  overflow: hidden;
}
.bc:hover {
  border-color: var(--border-hvr);
  background: var(--surface-hvr);
  transform: translateY(-2px);
}

.bc-full { grid-column: span 2; }

.bc-accent-card {
  background: linear-gradient(135deg, var(--accent) 0%, #4f46e5 100%);
  border-color: transparent;
}
.bc-accent-card .bc-num, .bc-accent-card .bc-label { color: var(--white); }
.bc-accent-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px var(--accent-glow);
}

.bc-body {
  font-size: 16px;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 24px;
}

.bc-num {
  font-family: var(--font-head);
  font-size: 54px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--white);
  line-height: 1;
}
.bc-num span { opacity: 0.6; }

.bc-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
  margin-top: 8px;
}

.pill-row { display: flex; flex-wrap: wrap; gap: 8px; }
.pill {
  font-size: 12px;
  font-weight: 500;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.04);
  padding: 6px 14px;
  border-radius: 99px;
  color: var(--text-main);
}

@media (max-width: 900px) {
  .bento { grid-template-columns: 1fr; }
  .bc-full { grid-column: span 1; }
}

/* ─── PROJECTS MŘÍŽKA (ČISTÉ 3 SLOUPCE) ─── */
.projects-bento {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

a.pc {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--trans);
  position: relative;
  overflow: hidden;
  display: block;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  min-height: 240px;
}
a.pc:hover {
  border-color: var(--border-hvr);
  background: var(--surface-hvr);
  transform: translateY(-2px);
}

.pc-tags { display: flex; gap: 8px; margin-bottom: 20px; }
.ptag {
  font-size: 11px;
  font-weight: 500;
  color: var(--accent);
  background: rgba(99, 102, 241, 0.08);
  padding: 4px 12px;
  border-radius: 99px;
}

.pc-title {
  font-family: var(--font-head);
  font-size: 22px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 8px;
}
.pc-desc { font-size: 14px; color: var(--muted); padding-right: 20px; }
.pc-year { display: block; font-size: 12px; color: var(--dim); font-weight: 600; margin-top: 24px; }

.pc-arrow-sub {
  position: absolute; bottom: 32px; right: 32px;
  display: flex; align-items: center; justify-content: center;
  width: 44px; height: 44px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--white);
  font-size: 18px;
  transition: all var(--trans);
}
a.pc:hover .pc-arrow-sub {
  background: var(--white);
  color: var(--bg);
}

@media (max-width: 1024px) {
  .projects-bento { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .projects-bento { grid-template-columns: 1fr; }
  a.pc { min-height: auto; padding-bottom: 80px; }
}

/* ─── SKILLS ─── */
.skills-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.sk-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px; }
.sk-card-dark { grid-column: span 2; background: rgba(255,255,255,0.01); }

.sk-head {
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 24px;
}
.sk-item { margin-bottom: 18px; }
.sk-row { display: flex; justify-content: space-between; margin-bottom: 8px; }
.sk-name { font-size: 14px; font-weight: 500; color: var(--white); }
.sk-pct { font-size: 13px; color: var(--muted); }

.sk-track { height: 4px; background: rgba(255,255,255,0.03); border-radius: 99px; overflow: hidden; }
.sk-fill {
  height: 100%; background: var(--accent); border-radius: 99px; width: 0;
  transition: width 1.5s cubic-bezier(0.16, 1, 0.3, 1);
}
.sk-fill.animated { width: var(--w); }

.pk-wrap { display: flex; flex-wrap: wrap; gap: 8px; }
.pk {
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border);
  border-radius: 99px;
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
}
.pk.pk-lit {
  color: var(--white);
  border-color: rgba(99, 102, 241, 0.3);
  background: rgba(99, 102, 241, 0.1);
}

@media (max-width: 900px) {
  .skills-grid { grid-template-columns: 1fr; }
  .sk-card-dark { grid-column: span 1; }
}

/* ─── CONTACT FORM & LAYOUT ─── */
.contact-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 16px; }
.contact-left { display: flex; flex-direction: column; gap: 16px; }

.ct-avail {
  background: rgba(16, 185, 129, 0.06);
  border: 1px solid rgba(16, 185, 129, 0.15);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex; align-items: center; gap: 12px;
  font-size: 14px; color: #10B981; font-weight: 500;
}
.ct-avail .ct-dot { background: #10B981; box-shadow: 0 0 10px #10B981; }

.ct-info { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px; flex: 1; display: flex; flex-direction: column; justify-content: center; gap: 24px; }
.ct-row { display: flex; align-items: center; gap: 16px; }
.ct-icon {
  width: 40px; height: 40px; background: rgba(255,255,255,0.03); border: 1px solid var(--border);
  border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center;
  color: var(--white); font-size: 16px;
}
.ct-lbl { font-size: 11px; color: var(--muted); letter-spacing: 0.05em; }
.ct-val a { color: var(--white); text-decoration: none; transition: color var(--trans); }
.ct-val a:hover { color: var(--accent); }

.ct-form { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 40px; display: flex; flex-direction: column; gap: 20px; }
.cf-group { display: flex; flex-direction: column; gap: 8px; }
.cf-label { font-size: 11px; font-weight: 600; color: var(--muted); letter-spacing: 0.05em; }

.cf-input, .cf-textarea {
  background: rgba(255,255,255,0.01); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 14px; font-size: 14px; color: var(--white); font-family: var(--font-body);
  outline: none; transition: all var(--trans); width: 100%;
}
.cf-input:focus, .cf-textarea:focus {
  border-color: var(--accent); background: rgba(99, 102, 241, 0.02);
  box-shadow: 0 0 20px var(--accent-glow);
}
.cf-textarea { height: 130px; resize: none; }
.form-btn { cursor: pointer; border: none; font-family: var(--font-body); text-align: center; }

@media (max-width: 900px) {
  .contact-grid { grid-template-columns: 1fr; }
  .ct-form { padding: 24px; }
}

/* ─── FOOTER ─── */
.footer { border-top: 1px solid var(--border); padding: 40px 0; background: #020203; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; }
.ft-logo { font-family: var(--font-head); font-size: 20px; font-weight: 700; color: var(--white); }
.ft-logo span { color: var(--accent); }
.ft-copy { font-size: 13px; color: var(--dim); }

@media (max-width: 500px) {
  .footer-inner { flex-direction: column; gap: 16px; text-align: center; }
}

/* ─── REVEAL ─── */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform, opacity;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }