/* ============================================================
   activity — marketing web stylesheet
   Brand: navy + red (slovenská národná farebnosť)
   Founded on sportup.sk Design Manual v2.0 · 2026
   ============================================================ */

:root {
  /* ─── Brand farby ─── */
  /* Navy — identitná farba (zhodne s sportup.sk) */
  --color-navy: #1A2D47;
  --color-navy-darker: #0F1A2A;
  --color-navy-light: #2D4567;

  /* Red — activity akcent (slovenská brand red) */
  --color-red: #C8102E;
  --color-red-darker: #9C0C24;
  --color-red-light: #E63950;
  --color-red-bg-light: #FCE4E8;
  --color-red-bg-tint: #FFF5F6;

  /* White */
  --color-white: #FFFFFF;

  /* ─── Semantické UI farby ─── */
  --color-bg: #fafaf9;
  --color-bg-alt: #ffffff;
  --color-bg-dark: var(--color-navy);
  --color-bg-tint: #F4F6F8;

  --color-text: #1f1f1f;
  --color-text-muted: #595959;
  --color-text-light: #8E8E92;

  --color-border: #e5e5e5;
  --color-border-strong: #d4d4d4;

  /* ─── Brand accent (mapovane na red) ─── */
  --color-accent: var(--color-red);
  --color-accent-dark: var(--color-red-darker);
  --color-accent-light: var(--color-red-bg-light);
  --color-accent-tint: var(--color-red-bg-tint);

  /* ─── Sekundárny accent (mapovany na navy, pre kontrast) ─── */
  --color-secondary: var(--color-navy);
  --color-secondary-dark: var(--color-navy-darker);
  --color-secondary-light: #E8EDF5;

  /* ─── Status farby ─── */
  --color-warning: #b45309;
  --color-warning-bg: #fef3c7;
  --color-info: #1e40af;
  --color-info-bg: #dbeafe;
  --color-success: #065f46;
  --color-success-bg: #d1fae5;
  --color-danger: var(--color-red);
  --color-danger-bg: var(--color-red-bg-light);

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter,
    "Helvetica Neue", sans-serif;
  --font-mono: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", monospace;


  /* Spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;

  /* Layout */
  --content-width: 1100px;
  --content-width-narrow: 760px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.08);
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
img, svg { display: block; max-width: 100%; }

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Typography */
h1, h2, h3, h4 {
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 5vw, 3rem); margin-bottom: var(--space-4); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); margin-bottom: var(--space-4); margin-top: var(--space-7); }
h3 { font-size: 1.25rem; margin-bottom: var(--space-3); margin-top: var(--space-6); font-weight: 600; }
h4 { font-size: 1.05rem; margin-bottom: var(--space-2); margin-top: var(--space-4); font-weight: 600; }

p { margin-bottom: var(--space-4); }
p.lead { font-size: 1.2rem; color: var(--color-text-muted); max-width: 65ch; }

a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

a:hover { color: var(--color-accent-dark); text-decoration-thickness: 2px; }

ul, ol { margin-bottom: var(--space-4); padding-left: var(--space-5); }
li { margin-bottom: var(--space-2); }

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--color-bg-alt);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

strong { font-weight: 600; }
em { font-style: italic; color: var(--color-text-muted); }

/* Layout */
.container { max-width: var(--content-width); margin: 0 auto; padding: 0 var(--space-5); }
.container-narrow { max-width: var(--content-width-narrow); margin: 0 auto; padding: 0 var(--space-5); }

main { flex: 1; padding: var(--space-7) 0; }

/* Header */
.site-header {
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4) 0;
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(180%) blur(8px);
  background: rgba(255, 255, 255, 0.85);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
}

.site-logo {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--color-text);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.site-logo img {
  display: block;
  height: 36px;
  width: auto;
}

.site-logo span { color: var(--color-accent); }
.site-logo small { color: var(--color-text-muted); font-weight: 400; font-size: 0.8em; }

.site-nav {
  display: flex;
  gap: var(--space-5);
  align-items: center;
  flex-wrap: wrap;
}

.site-nav a {
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  padding: var(--space-2) 0;
  position: relative;
}

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

.site-nav a.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-accent);
}

.nav-cta {
  background: var(--color-accent);
  color: var(--color-bg-alt) !important;
  padding: var(--space-2) var(--space-4) !important;
  border-radius: var(--radius-md);
  font-weight: 500;
}

.nav-cta:hover { background: var(--color-accent-dark); color: var(--color-bg-alt) !important; }

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  padding: var(--space-2);
}

@media (max-width: 768px) {
  .menu-toggle { display: block; }
  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg-alt);
    flex-direction: column;
    padding: var(--space-5);
    gap: var(--space-3);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
  }
  .site-nav.open { display: flex; }
}

/* Footer */
.site-footer {
  background: var(--color-bg-dark);
  color: #d4d4d4;
  padding: var(--space-7) 0 var(--space-5) 0;
  margin-top: var(--space-8);
}

.site-footer h4 {
  color: white;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-3);
}

.site-footer a {
  color: #d4d4d4;
  text-decoration: none;
  display: block;
  padding: var(--space-1) 0;
  font-size: 0.95rem;
}

.site-footer a:hover { color: white; }

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-6);
  margin-bottom: var(--space-6);
}

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

.footer-bottom {
  border-top: 1px solid #333;
  padding-top: var(--space-5);
  font-size: 0.85rem;
  color: #8a8a8a;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* Hero */
.hero {
  padding: var(--space-9) 0 var(--space-8) 0;
  text-align: center;
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
  border-bottom: 1px solid var(--color-border);
}

.hero h1 {
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.hero p.lead {
  font-size: 1.3rem;
  margin: var(--space-4) auto var(--space-6) auto;
}

.hero-actions {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
  flex-wrap: wrap;
}

.badge-related {
  display: inline-block;
  background: var(--color-accent-light);
  color: var(--color-accent-dark);
  padding: var(--space-2) var(--space-4);
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: var(--space-5);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md);
  font-weight: 500;
  text-decoration: none;
  transition: transform 0.1s, box-shadow 0.1s;
  border: 1px solid transparent;
  font-size: 1rem;
}

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

.btn-primary:hover {
  background: var(--color-accent-dark);
  color: white !important;
  text-decoration: none;
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--color-bg-alt);
  color: var(--color-text) !important;
  border-color: var(--color-border-strong);
}

.btn-secondary:hover {
  background: var(--color-bg);
  color: var(--color-text) !important;
  text-decoration: none;
  border-color: var(--color-text-muted);
}

.btn-link {
  color: var(--color-accent);
  background: none;
  padding: 0;
  font-weight: 500;
  border: none;
}

.btn-link::after { content: ' →'; transition: transform 0.15s; display: inline-block; }
.btn-link:hover::after { transform: translateX(3px); }

/* Sections */
section.section { margin: var(--space-8) 0; }
section.section-alt { background: var(--color-bg-alt); padding: var(--space-8) 0; margin: var(--space-8) 0; }

/* Cards grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-5);
  margin: var(--space-5) 0;
}

.card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.card:hover {
  border-color: var(--color-text-muted);
  box-shadow: var(--shadow-md);
}

.card h3 {
  margin-top: 0;
  font-size: 1.15rem;
}

.card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-bottom: 0;
}

.card-icon {
  width: 40px;
  height: 40px;
  background: var(--color-accent-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-3);
}

/* Feature blocks (alternating image/text) */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-7);
  align-items: center;
  margin: var(--space-7) 0;
}

.feature-block.reverse .feature-text { order: 2; }

@media (max-width: 768px) {
  .feature-block { grid-template-columns: 1fr; gap: var(--space-5); }
  .feature-block.reverse .feature-text { order: initial; }
}

.feature-text h2 { margin-top: 0; }

/* Story blocks */
.story {
  background: var(--color-bg-alt);
  border-left: 4px solid var(--color-accent);
  padding: var(--space-5) var(--space-6);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: var(--space-5) 0;
}

.story-meta {
  font-size: 0.85rem;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-2);
}

.story h3 {
  margin-top: 0;
  font-size: 1.2rem;
}

.story-quote {
  font-style: italic;
  color: var(--color-text-muted);
  border-left: 2px solid var(--color-border-strong);
  padding-left: var(--space-4);
  margin: var(--space-4) 0;
}

/* ===== UI Mockups (faux-app components) ===== */

.mockup {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  margin: var(--space-5) 0;
  font-size: 0.9rem;
}

.mockup-bar {
  background: #f3f3f3;
  padding: var(--space-2) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.mockup-bar .dots {
  display: flex;
  gap: 6px;
}

.mockup-bar .dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #d4d4d4;
}

.mockup-bar .dots span:first-child { background: #ff5f57; }
.mockup-bar .dots span:nth-child(2) { background: #ffbd2e; }
.mockup-bar .dots span:nth-child(3) { background: #28c840; }

.mockup-content { padding: var(--space-5); }

/* Mockup: Mentoring session form */
.mock-session {
  font-family: var(--font-sans);
}

.mock-session .mock-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}

.mock-session .mock-title { font-size: 1.05rem; font-weight: 600; }
.mock-session .mock-subtitle { font-size: 0.85rem; color: var(--color-text-muted); margin-top: 2px; }

.mock-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.mock-status.recorded { background: var(--color-success-bg); color: var(--color-success); }
.mock-status.draft { background: var(--color-warning-bg); color: var(--color-warning); }
.mock-status.proposed { background: var(--color-info-bg); color: var(--color-info); }

.mock-warning {
  background: var(--color-warning-bg);
  color: var(--color-warning);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  margin: var(--space-3) 0;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.mock-info {
  background: var(--color-info-bg);
  color: var(--color-info);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  margin: var(--space-3) 0;
}

.mock-section {
  margin: var(--space-4) 0;
}

.mock-section-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-light);
  margin-bottom: var(--space-2);
  font-weight: 600;
}

.mock-field {
  margin-bottom: var(--space-3);
}

.mock-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 2px;
}

.mock-value {
  font-size: 0.95rem;
  color: var(--color-text);
}

.mock-value-block {
  background: #fafaf8;
  border: 1px solid var(--color-border);
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.mock-tag {
  display: inline-block;
  background: var(--color-accent-light);
  color: var(--color-accent-dark);
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  margin: 2px 4px 2px 0;
}

.mock-private-note {
  background: #fef9e7;
  border: 1px dashed #d4af37;
  padding: var(--space-3);
  border-radius: var(--radius-md);
  margin-top: var(--space-4);
}

.mock-private-note .mock-section-title {
  color: #8b6914;
}

.mock-private-note .mock-value-block {
  background: #fffceb;
  border-color: #ead9a0;
}

/* Mockup: Chat */
.mock-chat-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-3);
}

.mock-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-accent-light);
  color: var(--color-accent-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.mock-chat-name { font-weight: 600; font-size: 0.95rem; }
.mock-chat-meta { font-size: 0.75rem; color: var(--color-text-light); }

.mock-message {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
  max-width: 85%;
}

.mock-message.outgoing {
  margin-left: auto;
  flex-direction: row-reverse;
}

.mock-bubble {
  background: var(--color-bg);
  padding: var(--space-3) var(--space-4);
  border-radius: 16px;
  font-size: 0.92rem;
  line-height: 1.4;
}

.mock-message.outgoing .mock-bubble {
  background: var(--color-accent);
  color: white;
}

.mock-message-time {
  font-size: 0.7rem;
  color: var(--color-text-light);
  margin-top: 4px;
}

.mock-proxy-tag {
  display: inline-block;
  background: var(--color-info-bg);
  color: var(--color-info);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.7rem;
  margin-left: 4px;
  font-weight: 500;
}

/* Mockup: Notification */
.mock-notification {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  display: flex;
  gap: var(--space-3);
  margin: var(--space-2) 0;
}

.mock-notification.unread {
  background: var(--color-accent-light);
  border-color: var(--color-accent);
}

.mock-notification-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-accent);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.9rem;
}

.mock-notification-content { flex: 1; }
.mock-notification-title { font-weight: 600; font-size: 0.9rem; margin-bottom: 2px; }
.mock-notification-text { font-size: 0.85rem; color: var(--color-text-muted); }
.mock-notification-time { font-size: 0.75rem; color: var(--color-text-light); margin-top: 4px; }

/* Diagram blocks */
.diagram {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.5;
  overflow-x: auto;
  white-space: pre;
  margin: var(--space-5) 0;
  color: var(--color-text);
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-5) 0;
  font-size: 0.95rem;
}

th, td {
  padding: var(--space-3);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

th {
  font-weight: 600;
  background: var(--color-bg-alt);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
}

td code {
  font-size: 0.85em;
}

/* Callouts */
.callout {
  border-left: 4px solid var(--color-accent);
  padding: var(--space-4) var(--space-5);
  background: var(--color-bg-alt);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: var(--space-5) 0;
}

.callout-info { border-left-color: var(--color-info); background: var(--color-info-bg); }
.callout-warning { border-left-color: var(--color-warning); background: var(--color-warning-bg); }

.callout p:last-child { margin-bottom: 0; }

/* Anchor sections */
.anchor-target { scroll-margin-top: 80px; }

/* Skip link for accessibility */
.skip-link {
  position: absolute;
  left: -9999px;
  top: var(--space-3);
  background: var(--color-accent);
  color: white;
  padding: var(--space-2) var(--space-4);
  text-decoration: none;
  border-radius: var(--radius-md);
  z-index: 100;
}

.skip-link:focus { left: var(--space-3); color: white; }

/* Print */
@media print {
  .site-header, .site-footer, .menu-toggle { display: none; }
  body { background: white; color: black; }
}