/* =========================================================================
   Viena darba nedēļa — Stylesheet
   Author: Rainers Cīrulis (rc23018) — design
   ========================================================================= */

/* -------------------------------------------------------------------------
   1. DESIGN TOKENS  (CSS custom properties for theming)
   ------------------------------------------------------------------------- */
:root {
  /* Brand / structural colors (theme-independent) */
  --navy:            #001D3F;
  --navy-hover:      #002a5a;
  --navy-text:       #F5F1EA;       /* cream text on navy */

  /* Day-accent colors — used both for cards on home and headers on day pages */
  --day-1-bg:        #E8D5C9;        /* Pirmdiena — peach */
  --day-2-bg:        #CFD9D5;        /* Otrdiena — sage */
  --day-3-bg:        #D5CFD9;        /* Trešdiena — lavender */
  --day-4-bg:        #A48E80;        /* Ceturtdiena — tan */
  --day-5-bg:        #B7D3E5;        /* Piektdiena — sky */

  /* Typography */
  --font-display: "Source Serif Pro", "Source Serif 4", Georgia, serif;
  --font-body:    "Roboto Serif", Georgia, serif;
  --font-nav:     "Homenaje", "Source Serif Pro", serif;

  /* Sizing */
  --container:    1024px;
  --gap-xs: 0.5rem;
  --gap-sm: 1rem;
  --gap-md: 1.5rem;
  --gap-lg: 2.5rem;
  --gap-xl: 4rem;

  /* Light theme variables (default) */
  --bg:           #F5F1EA;          /* warm off-white */
  --bg-alt:       #ffffff;
  --text:         #0E1116;
  --text-muted:   #4a4a4a;
  --border:       #1d1d1d;
  --button-bg:    #0E1116;
  --button-text:  #F5F1EA;
  --card-text:    #0E1116;
  --card-footer:  #0E1116;          /* dark footer strip on day cards */
  --card-footer-text: #F5F1EA;

  /* Misc */
  --radius-sm:    4px;
  --radius-md:    8px;
  --shadow-sm:    0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md:    0 6px 20px rgba(0, 0, 0, 0.12);
  --transition:   200ms ease;
}

/* Dark theme — applied via [data-theme="dark"] on <html> */
[data-theme="dark"] {
  --bg:           #1B1B1B;
  --bg-alt:       #232323;
  --text:         #F5F1EA;
  --text-muted:   #c8c8c8;
  --border:       #F5F1EA;
  --button-bg:    #F5F1EA;
  --button-text:  #0E1116;
  --card-text:    #0E1116;          /* card faces stay readable (cards are pastel) */
  --card-footer:  #F5F1EA;
  --card-footer-text: #0E1116;
}

/* Smooth theme transition */
html { transition: background-color var(--transition), color var(--transition); }
body { transition: background-color var(--transition), color var(--transition); }

/* -------------------------------------------------------------------------
   2. BASE / RESET
   ------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  color: var(--text);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1 0 auto; }

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

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  margin: 0 0 var(--gap-sm);
  letter-spacing: -0.01em;
}

p { margin: 0 0 var(--gap-sm); }

/* Accessibility — focus styles */
:focus-visible {
  outline: 2px solid var(--navy);
  outline-offset: 3px;
}
[data-theme="dark"] :focus-visible { outline-color: var(--day-1-bg); }

/* Skip-link for keyboard users */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: 0.5rem 1rem;
  background: var(--navy);
  color: var(--navy-text);
  z-index: 100;
}
.skip-link:focus { left: 0; }

/* Visually-hidden utility (for accessible labels) */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* -------------------------------------------------------------------------
   3. LAYOUT  — container + grid helpers
   ------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--gap-md);
  padding-right: var(--gap-md);
}

/* -------------------------------------------------------------------------
   4. SITE HEADER  (navy top bar)
   ------------------------------------------------------------------------- */
.site-header {
  background-color: var(--navy);
  color: var(--navy-text);
  padding: 0.75rem 0;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06);
}

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

.site-header__brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.01em;
}

.site-header__brand a { color: var(--navy-text); }
.site-header__brand a:hover { text-decoration: none; opacity: 0.85; }

/* Desktop navigation (day links) */
.site-nav {
  display: flex;
  gap: var(--gap-lg);
  font-family: var(--font-nav);
  font-size: 1rem;
  text-transform: lowercase;
  letter-spacing: 0.04em;
}

.site-nav a {
  color: var(--navy-text);
  padding: 0.25rem 0;
  position: relative;
  transition: opacity var(--transition);
}
.site-nav a:hover { text-decoration: none; opacity: 0.7; }
.site-nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background-color: var(--day-1-bg);
}

/* Theme toggle button */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border-radius: 50%;
  color: var(--navy-text);
  transition: background-color var(--transition);
}
.theme-toggle:hover { background-color: rgba(255, 255, 255, 0.1); }
.theme-toggle .icon-sun  { display: none; }
.theme-toggle .icon-moon { display: block; }
[data-theme="dark"] .theme-toggle .icon-sun  { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

/* Mobile menu (hamburger) button — hidden on desktop */
.menu-toggle {
  display: none;
  width: 36px; height: 36px;
  align-items: center;
  justify-content: center;
  color: var(--navy-text);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition);
}
.menu-toggle:hover { background-color: rgba(255, 255, 255, 0.1); }

/* -------------------------------------------------------------------------
   5. SITE FOOTER  (navy bottom bar)
   ------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--navy);
  color: var(--navy-text);
  padding: 1.25rem 0;
  font-family: var(--font-nav);
  font-size: 0.9rem;
  margin-top: var(--gap-xl);
  flex-shrink: 0;
}

.site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap-md);
  flex-wrap: wrap;
}

/* -------------------------------------------------------------------------
   6. HOME PAGE — Hero
   ------------------------------------------------------------------------- */
.hero {
  padding-top: var(--gap-xl);
  padding-bottom: var(--gap-lg);
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-lg);
  align-items: center;
}

.hero__title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  margin-bottom: var(--gap-md);
}

.hero__desc {
  font-family: var(--font-body);
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: var(--gap-lg);
  max-width: 46ch;
}

.hero__actions {
  display: flex;
  gap: var(--gap-sm);
  flex-wrap: wrap;
}

/* The hero image — gray placeholder per spec */
.hero__image {
  aspect-ratio: 4 / 3;
  background-color: #D9D9D9;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  color: #555;
  font-size: 1.25rem;
  border-radius: var(--radius-sm);
}

/* -------------------------------------------------------------------------
   7. BUTTONS
   ------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  padding: 0.7rem 1.25rem;
  border-radius: var(--radius-sm);
  transition: transform var(--transition), background-color var(--transition),
              color var(--transition), box-shadow var(--transition);
  text-align: center;
  line-height: 1.2;
}

.btn--primary {
  background-color: var(--button-bg);
  color: var(--button-text);
}
.btn--primary:hover {
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.btn--secondary {
  background-color: transparent;
  color: var(--text);
  border: 1.5px solid var(--border);
}
.btn--secondary:hover {
  text-decoration: none;
  background-color: var(--button-bg);
  color: var(--button-text);
}

/* -------------------------------------------------------------------------
   8. HOME PAGE — "Izvēlies dienu!" day-picker
   ------------------------------------------------------------------------- */
.day-picker {
  padding: var(--gap-xl) 0 var(--gap-lg);
  text-align: center;
}

.day-picker__title {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 900;
  margin-bottom: 0.5rem;
}

.day-picker__hint {
  font-family: var(--font-body);
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: var(--gap-lg);
}

/* Carousel wrapper — arrows on each side, cards in the middle */
.day-carousel {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--gap-sm);
}

.carousel-arrow {
  width: 40px; height: 40px;
  border-radius: 50%;
  background-color: var(--button-bg);
  color: var(--button-text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition), background-color var(--transition);
  flex-shrink: 0;
}
.carousel-arrow:hover { transform: scale(1.08); }
.carousel-arrow:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}
.carousel-arrow:disabled:hover { transform: none; }

/* The viewport hides overflow; the track moves horizontally */
.day-carousel__viewport {
  overflow: hidden;
}

.day-carousel__track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: calc((100% - 2 * var(--gap-md)) / 3); /* 3 cards visible */
  gap: var(--gap-md);
  transition: transform 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* -------------------------------------------------------------------------
   9. DAY CARD  (used in home page carousel)
   ------------------------------------------------------------------------- */
.day-card {
  display: flex;
  flex-direction: column;
  min-height: 240px;
  border-radius: var(--radius-md);
  overflow: hidden;
  text-align: left;
  transition: transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
  color: var(--card-text);
}
.day-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

.day-card__face {
  flex: 1;
  padding: var(--gap-md);
  display: flex;
  align-items: flex-end;
}
.day-card__face .day-card__name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.5rem;
  letter-spacing: -0.01em;
}

.day-card__footer {
  background-color: var(--card-footer);
  color: var(--card-footer-text);
  padding: 0.85rem var(--gap-md);
  font-family: var(--font-body);
  font-size: 0.9rem;
}
.day-card__footer .day-card__summary { display: block; }
.day-card__footer .day-card__insight {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  display: block;
  margin-bottom: 2px;
}

/* Day-specific face colors */
.day-card--1 .day-card__face { background-color: var(--day-1-bg); }
.day-card--2 .day-card__face { background-color: var(--day-2-bg); }
.day-card--3 .day-card__face { background-color: var(--day-3-bg); }
.day-card--4 .day-card__face { background-color: var(--day-4-bg); }
.day-card--5 .day-card__face { background-color: var(--day-5-bg); }

/* Tan/brown day-4 needs lighter text */
.day-card--4 .day-card__face .day-card__name { color: #F5F1EA; }

/* -------------------------------------------------------------------------
   10. HOME PAGE — "Par darbu" about section
   ------------------------------------------------------------------------- */
.about {
  padding: var(--gap-xl) 0;
}

.about__title {
  font-size: clamp(1.4rem, 2vw, 1.75rem);
  font-weight: 900;
  margin-bottom: var(--gap-md);
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-lg);
}

.about__grid p {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text);
}

/* -------------------------------------------------------------------------
   11. DAY DETAIL PAGE
   ------------------------------------------------------------------------- */
.day-hero {
  padding: var(--gap-lg) 0 var(--gap-md);
  margin-bottom: var(--gap-lg);
}

/* Background color set per-day via .day-hero--N modifier.
   The hero strip is always a pastel/tan color, so the text on it must
   stay dark regardless of theme — otherwise it's unreadable in dark mode. */
.day-hero--1, .day-hero--2, .day-hero--3, .day-hero--5 {
  color: #0E1116;     /* keep dark text on pastel bg in all themes */
}
.day-hero--1 { background-color: var(--day-1-bg); }
.day-hero--2 { background-color: var(--day-2-bg); }
.day-hero--3 { background-color: var(--day-3-bg); }
.day-hero--4 { background-color: var(--day-4-bg); color: #F5F1EA; }  /* tan needs light text */
.day-hero--5 { background-color: var(--day-5-bg); }

.day-hero__title {
  font-size: clamp(1.6rem, 2.8vw, 2.2rem);
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.day-hero__subtitle {
  font-family: var(--font-display);
  font-weight: 300;
  font-style: italic;
  font-size: 1.1rem;
  opacity: 0.85;
}

/* Three text+image sections, alternating image left/right */
.day-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-lg);
  align-items: start;
  margin-bottom: var(--gap-xl);
}

.day-section__text {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
}

.day-section__image {
  aspect-ratio: 4 / 3;
  background-color: #D9D9D9;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  color: #555;
  font-size: 1rem;
  border-radius: var(--radius-sm);
}

.day-section__caption {
  font-family: var(--font-body);
  font-style: italic;
  font-size: 0.85rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 0.5rem;
}

/* Alternate image on the right for even-indexed sections (1st, 3rd) and
   image on the left for the middle (2nd) section. We use modifier classes. */
.day-section--reverse { direction: rtl; }
.day-section--reverse > * { direction: ltr; }

/* Day page prev/next nav */
.day-nav {
  display: flex;
  justify-content: space-between;
  gap: var(--gap-md);
  padding-top: var(--gap-lg);
  border-top: 1px solid var(--border);
}

.day-nav .btn { flex: 0 1 auto; }
.day-nav__prev, .day-nav__next {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

/* -------------------------------------------------------------------------
   12. MOBILE STYLES   (<768px)
   ------------------------------------------------------------------------- */
@media (max-width: 767px) {

  .container { padding-left: var(--gap-sm); padding-right: var(--gap-sm); }

  /* HEADER — show hamburger, hide inline nav */
  .menu-toggle { display: inline-flex; }
  .site-nav { display: none; }

  /* Mobile menu drawer when toggled open */
  .site-nav.is-open {
    display: flex;
    flex-direction: column;
    gap: 0;
    position: absolute;
    top: 100%;
    right: 0;
    background-color: var(--navy);
    width: min(280px, 80vw);
    padding: var(--gap-sm);
    box-shadow: var(--shadow-md);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
  }
  .site-nav.is-open a {
    padding: 0.75rem 0.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }
  .site-nav.is-open a:last-child { border-bottom: none; }

  .site-header { position: relative; }   /* so the absolute menu drops correctly */

  /* HERO — stack vertically */
  .hero { padding-top: var(--gap-lg); }
  .hero__grid {
    grid-template-columns: 1fr;
    gap: var(--gap-md);
  }
  .hero__image { aspect-ratio: 16 / 10; }

  /* DAY PICKER — switch from carousel to vertical stack of all 5 days */
  .day-carousel { grid-template-columns: 1fr; }
  .carousel-arrow { display: none; }   /* no arrows needed when stacked */

  .day-carousel__viewport { overflow: visible; }

  .day-carousel__track {
    grid-auto-flow: row;
    grid-auto-columns: auto;
    grid-template-columns: 1fr;
    gap: var(--gap-sm);
    transform: none !important;    /* override any JS-set transform on mobile */
  }

  /* Mobile day card — horizontal row layout */
  .day-card {
    flex-direction: row;
    min-height: 0;
    align-items: stretch;
    border: 1px solid var(--border);
    background-color: var(--button-bg);
    color: var(--button-text);
  }
  .day-card__face {
    flex: 0 0 56px;
    padding: 0;
    min-height: 56px;
  }
  .day-card__face .day-card__name { display: none; }  /* only show color swatch */
  .day-card__footer {
    flex: 1;
    background-color: var(--button-bg);
    color: var(--button-text);
    padding: 0.75rem 1rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  .day-card__footer .day-card__name-mobile {
    font-family: var(--font-display);
    font-weight: 900;
    font-size: 1rem;
    display: block;
  }
  .day-card__footer .day-card__summary {
    font-size: 0.8rem;
    opacity: 0.8;
  }
  .day-card__arrow {
    align-self: center;
    margin-right: 0.75rem;
    flex-shrink: 0;
  }

  /* ABOUT — stack columns */
  .about__grid { grid-template-columns: 1fr; gap: var(--gap-md); }

  /* DAY DETAIL PAGE — stack image and text */
  .day-section {
    grid-template-columns: 1fr;
    gap: var(--gap-md);
    margin-bottom: var(--gap-lg);
  }
  .day-section--reverse { direction: ltr; }
  .day-section__image { aspect-ratio: 16 / 10; }

  /* Day nav buttons */
  .day-nav .btn { font-size: 0.9rem; padding: 0.6rem 0.9rem; }

  /* Buttons full-width-ish */
  .hero__actions { flex-direction: column; align-items: stretch; }
  .hero__actions .btn { width: 100%; }
}

/* -------------------------------------------------------------------------
   13. SMALL POLISH  — reduce motion for users who prefer it
   ------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* Mobile-only / desktop-only display helpers */
.mobile-only { display: none; }
@media (max-width: 767px) {
  .mobile-only { display: initial; }
  .desktop-only { display: none !important; }
}
