/* CSS variables moved to css/variables.css */

/* Typography base */
body, .ds-body, .ds-small, button { font-family: 'DM Sans', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; }

/* Reset and Base */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--ds-light);
  font-family: -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
  line-height: 1.5;
  font-size: var(--ds-text-body);
  scroll-snap-type: y proximity;
  z-index: -1;
  overflow-x: hidden;
}

html {
  scroll-behavior: smooth;
}

/* Typography Classes */
.ds-h3 {
  font-family: inherit;
  font-size: var(--ds-text-h3);
  font-weight: 600;
  line-height: 1.3;
}

.ds-body {
  font-size: var(--ds-text-body);
  font-weight: 400;
  line-height: 1.6;
}

.ds-small {
  font-size: var(--ds-text-small);
  font-weight: 400;
  line-height: 1.5;
}

/* Container System */
.ds-container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--ds-space-4);
  z-index: 10;
}

/* --- GŁÓWNY LAYOUT (Profil + Portfolio) --- */
.main-layout-container {
    display: grid;
    grid-template-columns: 3fr 5fr; /* Lewa kolumna: 3/8 (37.5%), Prawa kolumna: 5/8 (62.5%) */
    gap: 24px;
    width: 100%;
    padding: 0 var(--ds-space-2) 0; /* 64px padding po bokach, 0 na dole */
    box-sizing: border-box;
    align-items: start; /* Żeby kolumny nie rozciągały się wzajemnie na wysokość */
}

/* Responsywność dla głównego layoutu */
@media (max-width: 1025px) {
    .main-layout-container {
        grid-template-columns: 1fr; /* Poniżej 1025px wizytówka ląduje nad portfolio (1 kolumna) */
        gap: 24px;
        padding: 0 12px 0; /* Zmniejszony padding na tabletach, 0 na dole (zmieniono z 24px na 12px) */
    }
}

@media (max-width: 768px) {
    .main-layout-container {
        grid-template-columns: 1fr;
        gap: 24px;
        padding: 0 12px 0; /* Powrót do małego paddingu na telefonach, 0 na dole */
    }
}

/* Animations */
.ds-fade-in {
  opacity: 0;
  transform: translateY(var(--ds-space-2));
  transition: opacity var(--ds-duration-medium) var(--ds-ease),
              transform var(--ds-duration-medium) var(--ds-ease);
}

.ds-fade-in.ds-visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Global Button Styles --- */
.btn,
.filter-btn,
.load-more-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--ds-space-1) var(--ds-space-2);
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-radius-button);
  background-color: var(--ds-light);
  color: var(--ds-primary);
  font-family: 'DM Sans', sans-serif;
  font-size: var(--ds-text-small);
  font-weight: 600;
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--ds-duration-fast) var(--ds-ease);
  gap: var(--ds-space-1);
  position: relative;
  z-index: 10;
}

.btn:hover,
.filter-btn:hover,
.load-more-btn:hover {
  border-color: var(--ds-primary);
  color: var(--ds-primary);
}

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

/* Footer */
.footer {
  background: none;
  color: var(--ds-primary);
  padding: var(--ds-space-6) 0;
  border-top: 1px solid var(--ds-border);
  text-align: center;
  position: relative;
  z-index: 10;
}

/* Compact footer on smaller screens */
@media (max-width: 600px) {
  .footer { padding: 8px 0; }
  .footer .ds-small { font-size: 12px; }
}

/* Casing overrides for specific buttons (normal case) */
.filter-btn, .load-more-btn { text-transform: none; }

/* Responsive Design */
@media (max-width: 1024px) {
}

@media (max-width: 768px) {
  .projects-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--ds-space-3);
  }
}

@media (max-width: 480px) {
  .ds-container {
    padding: 0 var(--ds-gutter-mobile);
  }
  
  .ds-h3 {
    font-size: 20px;
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
  }
}