/* ============================================
   Daniel Kacírek — Brand V2 Design System
   ============================================ */

/* --- Custom Properties --- */
:root {
  /* Brand accents */
  --c-les: #333D29;
  --c-med: #936639;
  --c-pisek: #B6AD90;
  --c-salvej: #A4AC86;
  --c-bez: #A68A64;

  /* Light mode — B&W základ */
  --c-bg: #FFFFFF;
  --c-bg-alt: #F2F2F2;
  --c-text: #000000;
  --c-text-secondary: #444444;
  --c-text-muted: #888888;
  --c-border: #D4D4D4;
  --c-surface: #F2F2F2;

  /* Typography */
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --fs-base: 1rem;
  --fs-sm: 0.875rem;
  --fs-lg: 1.125rem;
  --fs-xl: 1.5rem;
  --fs-2xl: 2rem;
  --fs-3xl: 2.75rem;
  --lh: 1.6;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 3rem;
  --space-xl: 5rem;
  --space-2xl: 8rem;

  /* Layout */
  --max-w: 72rem;
  --radius: 0.5rem;

  /* Transitions */
  --transition: 0.2s ease;
}

/* Dark mode — B&W základ */
[data-theme="dark"] {
  --c-bg: #0A0A0A;
  --c-bg-alt: #111111;
  --c-text: #FFFFFF;
  --c-text-secondary: #888888;
  --c-text-muted: #555555;
  --c-border: #222222;
  --c-surface: #111111;
}

/* --- Reset --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  font-family: var(--font);
  font-size: var(--fs-base);
  line-height: var(--lh);
  color: var(--c-text);
  background-color: var(--c-bg);
  transition: background-color var(--transition), color var(--transition);
  -webkit-font-smoothing: antialiased;
}

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

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

/* --- Container --- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* --- Brand Stripe --- */
.brand-stripe {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  height: 4px;
}

.brand-stripe span {
  flex: 1;
}

/* --- Navigation --- */
.nav {
  position: sticky;
  top: 4px;
  z-index: 90;
  background-color: var(--c-bg);
  border-bottom: 1px solid var(--c-border);
  transition: background-color var(--transition);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 3.5rem;
}

.nav__logo-img {
  height: 2.25rem;
  width: auto;
}

.nav__logo-img img {
  height: 2.25rem;
  width: auto;
}

.nav__logo-img--light { display: none; }

[data-theme="dark"] .nav__logo-img--dark { display: none; }
[data-theme="dark"] .nav__logo-img--light { display: block; }

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav__links a {
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--c-text-muted);
  transition: color var(--transition);
}

.nav__links a:hover {
  color: var(--c-text);
}

/* Theme toggle — pill switch */
.theme-toggle {
  display: flex;
  align-items: center;
  background: transparent;
  border: none;
  padding: 0;
  cursor: pointer;
}

.toggle__track {
  position: relative;
  display: flex;
  align-items: center;
  width: 2.75rem;
  height: 1.5rem;
  background-color: var(--c-bg-alt);
  border: 1px solid var(--c-border);
  border-radius: 999px;
  transition: background-color 0.4s ease, border-color 0.4s ease;
}

[data-theme="dark"] .toggle__track {
  background-color: #1A1A1A;
}

.toggle__icons {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0 0.375rem;
  pointer-events: none;
}

.toggle__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.3s ease, color 0.3s ease;
}

.toggle__icon--sun {
  color: #A68A64;
  opacity: 1;
}

.toggle__icon--moon {
  color: var(--c-text-muted);
  opacity: 0.4;
}

[data-theme="dark"] .toggle__icon--sun {
  opacity: 0.4;
}

[data-theme="dark"] .toggle__icon--moon {
  color: var(--c-salvej);
  opacity: 1;
}

.toggle__knob {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 1.125rem;
  height: 1.125rem;
  background-color: #FFFFFF;
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
  transition: transform 0.4s cubic-bezier(0.68, -0.15, 0.32, 1.15),
              background-color 0.4s ease;
}

[data-theme="dark"] .toggle__knob {
  transform: translateX(1.25rem);
  background-color: #FFFFFF;
}

/* --- Button --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.75rem;
  font-family: var(--font);
  font-size: var(--fs-base);
  font-weight: 600;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background-color var(--transition), transform var(--transition);
  text-decoration: none;
}

.btn:active {
  transform: scale(0.98);
}

.btn--primary {
  background-color: var(--c-les);
  color: #FFFFFF;
}

.btn--primary:hover {
  background-color: #2A3222;
}

[data-theme="dark"] .btn--primary {
  background-color: var(--c-salvej);
  color: #000000;
}

[data-theme="dark"] .btn--primary:hover {
  background-color: #96A07A;
}

/* --- Hero --- */
.hero {
  padding: var(--space-xl) 0 var(--space-2xl);
}

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

.hero__eyebrow {
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--c-text-muted);
  margin-bottom: var(--space-xs);
}

.hero__text h1 {
  font-size: var(--fs-2xl);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
}

.hero__text h1 em {
  font-style: italic;
  color: var(--c-les);
}

[data-theme="dark"] .hero__text h1 em {
  color: var(--c-salvej);
}

.hero__bio {
  color: var(--c-text-muted);
  font-size: var(--fs-lg);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
  max-width: 36rem;
}

.hero__photo {
  width: 100%;
  max-width: 24rem;
  height: auto;
  margin: 0 auto;
  border-radius: 12px;
  object-fit: cover;
}

/* --- Služby --- */
.sluzby {
  padding: var(--space-xl) 0 var(--space-2xl);
  background-color: var(--c-bg-alt);
  transition: background-color var(--transition);
}

.sluzby h2 {
  font-size: var(--fs-xl);
  font-weight: 700;
  margin-bottom: var(--space-lg);
  letter-spacing: -0.02em;
}

.sluzby__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

.sluzby__card {
  background-color: var(--c-surface);
  border-radius: var(--radius);
  padding: var(--space-md) var(--space-md) var(--space-md) calc(var(--space-md) + 3px);
  border-left: 3px solid var(--accent);
  transition: background-color var(--transition), transform var(--transition);
}

.sluzby__card:hover {
  transform: translateY(-2px);
}

.sluzby__card h3 {
  font-size: var(--fs-lg);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.sluzby__card p {
  color: var(--c-text-muted);
  font-size: var(--fs-base);
  line-height: 1.7;
}

/* --- O mně --- */
.omne {
  background-color: var(--c-surface);
  color: var(--c-text);
  padding: var(--space-2xl) 0;
}

[data-theme="dark"] .omne {
  background-color: var(--c-surface);
}

.omne__inner {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}

.omne__quote {
  font-size: 8rem;
  line-height: 0.7;
  font-weight: 700;
  color: var(--c-med);
  flex-shrink: 0;
  user-select: none;
}

.omne__content {
  max-width: 38rem;
}

.omne h2 {
  font-size: var(--fs-xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
  letter-spacing: -0.02em;
  color: var(--c-text);
}

.omne__text {
  color: var(--c-text-muted);
  font-size: var(--fs-md);
  line-height: 1.8;
}

.omne__line {
  display: block;
  width: 3rem;
  height: 3px;
  background-color: var(--c-med);
  margin-top: var(--space-lg);
  border-radius: 2px;
}

/* --- Kontakt --- */
.kontakt {
  padding: var(--space-xl) 0 var(--space-2xl);
}

.kontakt h2 {
  font-size: var(--fs-xl);
  font-weight: 700;
  margin-bottom: var(--space-xs);
  letter-spacing: -0.02em;
}

.kontakt__intro {
  color: var(--c-text-muted);
  margin-bottom: var(--space-lg);
}

.kontakt__grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.kontakt__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.kontakt__info {
  padding: var(--space-lg);
  background: var(--c-surface);
  border-radius: var(--radius);
  border-left: 3px solid var(--c-med);
}

.kontakt__info-title {
  font-size: var(--fs-md);
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.kontakt__info-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.kontakt__info-label {
  display: block;
  font-size: var(--fs-sm);
  color: var(--c-text-muted);
  margin-bottom: 0.125rem;
}

.kontakt__info a {
  color: var(--c-text);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition);
}

.kontakt__info a:hover {
  color: var(--c-les);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.form-group label {
  font-size: var(--fs-sm);
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  font-family: var(--font);
  font-size: var(--fs-base);
  padding: 0.75rem;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  background-color: var(--c-bg);
  color: var(--c-text);
  transition: border-color var(--transition), background-color var(--transition);
  outline: none;
}

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

[data-theme="dark"] .form-group input:focus,
[data-theme="dark"] .form-group textarea:focus {
  border-color: var(--c-salvej);
}

.form-group textarea {
  resize: vertical;
  min-height: 7rem;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--c-text-muted);
  opacity: 0.6;
}

/* Form validation */
.form-group input.invalid,
.form-group textarea.invalid {
  border-color: #C0392B;
}

.form-message {
  font-size: var(--fs-sm);
  padding: 0.75rem;
  border-radius: var(--radius);
  background-color: var(--c-bg-alt);
  display: none;
}

.form-message--success {
  display: block;
  color: var(--c-les);
  border: 1px solid var(--c-les);
}

.form-message--error {
  display: block;
  color: #C0392B;
  border: 1px solid #C0392B;
}

/* --- Footer --- */
.footer {
  background-color: var(--c-les);
  color: #FFFFFF;
  padding: var(--space-lg) 0;
}

[data-theme="dark"] .footer {
  background-color: #050505;
}

.footer__inner {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
}

.footer__logo img {
  max-width: 10rem;
  height: auto;
}

@media (max-width: 639px) {
  .footer__logo img {
    max-width: 6rem;
  }

  .toggle__track {
    width: 2.5rem;
    height: 1.25rem;
  }

  .toggle__knob {
    width: 0.875rem;
    height: 0.875rem;
  }

  [data-theme="dark"] .toggle__knob {
    transform: translateX(1.25rem);
  }

  .toggle__icons {
    padding: 0 0.2rem;
  }

  .toggle__icon svg {
    width: 0.625rem;
    height: 0.625rem;
  }
}

.footer__copy {
  font-size: 0.75rem;
  color: var(--c-salvej);
}

/* --- Responsive --- */

/* Tablet */
@media (min-width: 640px) {
  .sluzby__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Desktop */
@media (min-width: 960px) {
  .hero__text h1 {
    font-size: var(--fs-3xl);
  }

  .hero__inner {
    grid-template-columns: 1fr 1fr;
  }

  .sluzby h2,
  .omne h2,
  .kontakt h2 {
    font-size: var(--fs-2xl);
  }

  .kontakt__grid {
    flex-direction: row;
    align-items: start;
    gap: var(--space-2xl);
  }

  .kontakt__form {
    flex: 3;
    min-width: 0;
  }

  .kontakt__info {
    flex: 2;
    min-width: 0;
  }

}