/* 
   MIROSLAV ŠEBESTA - UMĚLECKÝ TRUHLÁŘ
   Premium CSS Design System
   Aesthetic guidelines inspired by phillbuilt.com, hensbyworkshop.com, and kobeomsuk.com
*/

:root {
  --wood-dark: #1c120c;      /* Carbon-dark brown/black */
  --wood-medium: #3e2b20;    /* Dark walnut */
  --wood-light: #7c5c43;     /* Warm oak */
  --forest: #1e2c24;         /* Deep spruce green */
  --forest-light: #3d5045;   /* Moss green */
  --cream: #FAF8F5;          /* Off-white, soft paper texture */
  --cream-warm: #F0EAE1;     /* Warm limestone beige */
  --accent: #C5A880;         /* Muted gold/brass */
  --accent-hover: #b3946a;   
  --white: #ffffff;
  --transition-smooth: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Base resets & typography */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px; /* Offset for fixed header */
}

body {
  font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--cream);
  color: var(--wood-dark);
  line-height: 1.65;
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--cream-warm);
}
::-webkit-scrollbar-thumb {
  background: var(--wood-light);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--wood-medium);
}

/* Grain texture overlay to mimic raw wood paper feel */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  z-index: 9999;
}

/* Common Layout Elements */
h1, h2, h3, h4, .serif-font {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-weight: 400;
  color: var(--wood-dark);
  letter-spacing: -0.01em;
}

p {
  color: #3e332c;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-fast);
}

/* Section styling */
section {
  padding: 8rem 10%;
  position: relative;
}

@media (max-width: 1024px) {
  section {
    padding: 6rem 5%;
  }
}
@media (max-width: 768px) {
  section {
    padding: 4rem 1.5rem;
  }
}

/* Section label/subtitle */
.section-label {
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
  display: block;
}

/* Buttons and Links */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 2.8rem;
  background-color: var(--wood-dark);
  color: var(--cream);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  border: 1px solid var(--wood-dark);
  cursor: pointer;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.btn-primary svg {
  width: 16px;
  height: 16px;
  stroke: var(--cream);
  transition: transform 0.4s ease;
}

.btn-primary:hover {
  background-color: transparent;
  color: var(--wood-dark);
  border-color: var(--wood-dark);
}

.btn-primary:hover svg {
  stroke: var(--wood-dark);
  transform: translateX(5px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 2.2rem;
  background-color: transparent;
  color: var(--wood-dark);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  border: 1px solid rgba(28, 18, 12, 0.25);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.btn-secondary:hover {
  border-color: var(--wood-dark);
  background-color: rgba(28, 18, 12, 0.03);
}

/* Fine Decorative Borders (Wood joinery aesthetic) */
.divider-line {
  width: 100%;
  height: 1px;
  background-color: rgba(28, 18, 12, 0.08);
  position: relative;
}

.divider-line::after {
  content: '';
  position: absolute;
  top: -3px;
  left: 50%;
  transform: translateX(-50%);
  width: 7px;
  height: 7px;
  border: 1px solid rgba(28, 18, 12, 0.2);
  background: var(--cream);
  transform: rotate(45deg);
}

/* Navigation bar */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 2rem 10%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 1000;
  transition: var(--transition-smooth);
}

nav.scrolled {
  padding: 1.2rem 10%;
  background-color: rgba(250, 248, 245, 0.92);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border-bottom: 1px solid rgba(28, 18, 12, 0.05);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.02);
}

nav .logo-container {
  display: flex;
  align-items: center;
  gap: 1rem;
}

nav .logo-text {
  display: flex;
  flex-direction: column;
}

nav .logo-title {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 1.3rem;
  letter-spacing: 0.15em;
  font-weight: 400;
  line-height: 1.1;
  text-transform: uppercase;
  color: var(--wood-dark);
}

nav .logo-subtitle {
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent);
  margin-top: 2px;
}

nav .logo-img {
  height: 48px;
  width: auto;
  border-radius: 2px;
  filter: grayscale(10%);
}

.nav-links {
  display: flex;
  gap: 3.5rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--wood-medium);
  position: relative;
  padding: 0.5rem 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--accent);
  transition: var(--transition-fast);
}

.nav-links a:hover {
  color: var(--wood-dark);
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-links a.active {
  color: var(--wood-dark);
}

.nav-links a.active::after {
  width: 100%;
  background-color: var(--wood-dark);
}

/* Mobile Menu Toggle */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1001;
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 1px;
  background-color: var(--wood-dark);
  margin: 6px 0;
  transition: var(--transition-fast);
}

@media (max-width: 900px) {
  nav {
    padding: 1.5rem 5%;
  }
  nav.scrolled {
    padding: 1rem 5%;
  }
  .mobile-menu-btn {
    display: block;
  }
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 400px;
    height: 100vh;
    background-color: var(--cream);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2.5rem;
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.05);
    transition: right 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  }
  .nav-links.active {
    right: 0;
  }
  .mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  .mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
  }
  .mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }
}

/* Image Hover Swap Effect for Portfolio / Products (Luxury details) */
.image-swap-container {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/5;
  background-color: var(--cream-warm);
}

.image-swap-container img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.image-swap-container .img-detail {
  opacity: 0;
  transform: scale(1.05);
}

.image-swap-container:hover .img-main {
  opacity: 0;
  transform: scale(0.95);
}

.image-swap-container:hover .img-detail {
  opacity: 1;
  transform: scale(1);
}

/* Scroll reveal class animations */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1), transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Contact form styles */
.contact-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.contact-form .full-width {
  grid-column: span 2;
}

.form-group {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.form-group label {
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--wood-light);
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
  padding: 1rem 0;
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(28, 18, 12, 0.15);
  font-family: 'Outfit', sans-serif;
  font-size: 0.95rem;
  color: var(--wood-dark);
  transition: var(--transition-fast);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-bottom-color: var(--wood-dark);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.contact-form button {
  grid-column: span 2;
  justify-content: center;
  margin-top: 1rem;
}

@media (max-width: 600px) {
  .contact-form {
    grid-template-columns: 1fr;
  }
  .contact-form .full-width {
    grid-column: span 1;
  }
  .contact-form button {
    grid-column: span 1;
  }
}

/* Footer styling */
footer {
  background-color: var(--wood-dark);
  color: var(--cream-warm);
  padding: 6rem 10% 4rem;
  position: relative;
  overflow: hidden;
}

footer p {
  color: rgba(240, 234, 225, 0.55);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 4rem;
  max-width: 1400px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.footer-brand h3 {
  color: var(--cream);
  font-size: 1.8rem;
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
}

.footer-brand p {
  max-width: 400px;
  font-size: 0.9rem;
  line-height: 1.7;
}

.footer-heading {
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
  font-weight: 500;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.footer-links a {
  font-size: 0.9rem;
  color: rgba(240, 234, 225, 0.65);
}

.footer-links a:hover {
  color: var(--cream);
}

.footer-socials {
  display: flex;
  gap: 1.5rem;
}

.footer-socials a {
  color: rgba(240, 234, 225, 0.65);
}

.footer-socials a:hover {
  color: var(--accent);
}

.footer-bottom {
  border-top: 1px solid rgba(240, 234, 225, 0.08);
  margin-top: 4rem;
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1400px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  z-index: 2;
}

.footer-bottom p {
  font-size: 0.8rem;
}

@media (max-width: 900px) {
  .footer-content {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}

/* Watermark SVG styling (extremely subtle line art) */
.footer-watermark {
  position: absolute;
  right: -5%;
  bottom: -10%;
  width: clamp(300px, 40vw, 600px);
  height: auto;
  opacity: 0.035;
  pointer-events: none;
  stroke: var(--cream);
  z-index: 1;
}

.section-watermark {
  position: absolute;
  left: 5%;
  bottom: 0;
  width: clamp(200px, 20vw, 400px);
  height: auto;
  opacity: 0.02;
  pointer-events: none;
  stroke: var(--wood-dark);
  z-index: 0;
}

/* Responsive grid layouts */
.hero-layout,
.about-layout,
.contact-layout,
.catalog-layout {
  display: grid;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

.hero-layout {
  grid-template-columns: 1.2fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-layout {
  grid-template-columns: 1fr 1.2fr;
  gap: 6rem;
  align-items: center;
}

.contact-layout {
  grid-template-columns: 1fr 1.2fr;
  gap: 5rem;
  align-items: start;
}

.catalog-layout {
  grid-template-columns: 240px 1fr;
  gap: 4rem;
  align-items: start;
}

.realizace-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 3rem;
  max-width: 1400px;
  margin: 0 auto;
}

@media (max-width: 900px) {
  .hero-layout {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
  }
  .hero-layout > div:first-child {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .about-layout {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 3.5rem;
  }
  .catalog-layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .catalog-layout aside {
    position: relative !important;
    top: 0 !important;
    margin-bottom: 1.5rem;
  }
  .catalog-layout aside div {
    flex-direction: row !important;
    flex-wrap: wrap;
    gap: 0.5rem 1.2rem !important;
  }
}

@media (max-width: 768px) {
  .realizace-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

/* Footer tree styling for proportion lock */
.footer-tree-svg {
  position: absolute;
  bottom: 29px;
  right: 10%;
  width: 90px;
  height: 117px;
  transition: var(--transition-smooth);
}

@media (max-width: 900px) {
  .footer-tree-svg {
    right: 5%;
    width: 70px;
    height: 91px;
  }
}