/* Global CSS file for Copper website */

:root {
  /* Color palette - light mode defaults */
  --primary: #3c1518;
  --accent: #e2725b;
  --accent-rgb: 226, 114, 91;
  --accent-hover: #e76d55;
  --light: #F8F4A6;
  --white: #ffffff;
  --black: #000000;
  --bg-light: #F5F5DC;
  
  /* Background and text colors */
  --bg-primary: var(--white);
  --bg-secondary: var(--bg-light);
  --bg-tertiary: var(--bg-light);
  --bg-main: var(--white);
  --text-primary: var(--black);
  --text-secondary: var(--primary);
  --text-accent: var(--primary);
  --border-color: #e0e0e0;
  
  /* Font sizes */
  --font-small: 0.875rem;
  --font-base: 1rem;
  --font-medium-small: 1.125rem;
  --font-medium: 1.25rem;
  --font-large: 1.5rem;
  --font-xl: 2rem;
  --font-xxl: 3rem;
}

/* Dark mode colors - system preference only */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: #1e0e0f;
    --bg-secondary: #2c1315;
    --bg-tertiary: #2c1315;
    --bg-main: var(--primary);
    --text-primary: #f0f0f0;
    --text-secondary: var(--light);
    --text-accent: var(--accent);
    --border-color: #4a2529;
    --bg-light: #F8F4A6;
  }
}

/* For backward compatibility with existing code */
:root.dark-mode {
  --bg-primary: #1e0e0f;
  --bg-secondary: #2c1315;
  --bg-tertiary: #2c1315;
  --bg-main: var(--primary);
  --text-primary: #f0f0f0;
  --text-secondary: var(--light);
  --text-accent: var(--accent);
  --border-color: #4a2529;
  --bg-light: #F8F4A6;
}

/* No JavaScript styles */
.no-js {
  /* Ensure content is visible immediately when JS is disabled */
  visibility: visible !important;
}

.no-js .initial-loading {
  display: none !important;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  width: 100%;
  height: 100%;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  overflow-x: hidden;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -webkit-overflow-scrolling: touch;
  word-break: break-word;
}

body {
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  transition: background-color 0.3s ease, color 0.3s ease;
}

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

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-secondary);
}

section {
  min-height: 100vh;
  display: flex;
  justify-content: center;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

@media (min-width: 1800px) {
  .container {
    max-width: 1400px;
  }
}

/* Animation utilities */
.fade-in {
  opacity: 0;
  transition: opacity 0.6s ease-in-out;
}

.fade-in.visible {
  opacity: 1;
}

.slide-up {
  transform: translateY(30px);
  opacity: 0;
  transition: transform 0.6s ease-out, opacity 0.6s ease-out;
}

.slide-up.visible {
  transform: translateY(0);
  opacity: 1;
}

/* Button styles */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background-color: var(--accent);
  color: var(--white);
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.3s ease;
  /* Touch-friendly improvements */
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  user-select: none;
  -webkit-user-select: none;
}

.btn:hover {
  background-color: var(--accent-hover);
  transform: translateY(-2px);
}

.btn.btn-light {
  background-color: var(--bg-light);
  color: var(--black);
}

/* Touch device improvements */
@media (hover: none) and (pointer: coarse) {
  .btn:hover {
    transform: none;
  }
  
  .btn:active {
    background-color: var(--accent-hover);
    transform: scale(0.98);
  }
}

/* Responsive utilities */
@media (max-width: 768px) {
  :root {
    --font-xxl: 2.5rem;
    --font-xl: 1.75rem;
  }
  
  .container {
    padding: 0 1.5rem;
  }
}

/* Ensure proper touch targets on all touch devices */
@media (pointer: coarse) {
  button, 
  .btn, 
  a[role="button"],
  input[type="button"],
  input[type="submit"] {
    min-height: 44px;
    min-width: 44px;
  }
}

/* SAL.js Animation Library CSS */
[data-sal] {
  transition-duration: 0.5s;
  transition-property: opacity, transform;
  transition-timing-function: ease;
}

[data-sal][data-sal-duration="200"] {
  transition-duration: 0.2s;
}

[data-sal][data-sal-duration="300"] {
  transition-duration: 0.3s;
}

[data-sal][data-sal-duration="400"] {
  transition-duration: 0.4s;
}

[data-sal][data-sal-duration="500"] {
  transition-duration: 0.5s;
}

[data-sal][data-sal-duration="600"] {
  transition-duration: 0.6s;
}

[data-sal][data-sal-duration="700"] {
  transition-duration: 0.7s;
}

[data-sal][data-sal-duration="800"] {
  transition-duration: 0.8s;
}

[data-sal][data-sal-duration="900"] {
  transition-duration: 0.9s;
}

[data-sal][data-sal-duration="1000"] {
  transition-duration: 1s;
}

[data-sal][data-sal-easing="linear"] {
  transition-timing-function: linear;
}

[data-sal][data-sal-easing="ease"] {
  transition-timing-function: ease;
}

[data-sal][data-sal-easing="ease-in"] {
  transition-timing-function: ease-in;
}

[data-sal][data-sal-easing="ease-out"] {
  transition-timing-function: ease-out;
}

[data-sal][data-sal-easing="ease-in-out"] {
  transition-timing-function: ease-in-out;
}

/* Fade animations */
[data-sal="fade"] {
  opacity: 0;
}

[data-sal="fade"].sal-animate {
  opacity: 1;
}

/* Slide animations */
[data-sal="slide-up"] {
  opacity: 0;
  transform: translateY(30px);
}

[data-sal="slide-up"].sal-animate {
  opacity: 1;
  transform: translateY(0);
}

[data-sal="slide-down"] {
  opacity: 0;
  transform: translateY(-30px);
}

[data-sal="slide-down"].sal-animate {
  opacity: 1;
  transform: translateY(0);
}

[data-sal="slide-left"] {
  opacity: 0;
  transform: translateX(30px);
}

[data-sal="slide-left"].sal-animate {
  opacity: 1;
  transform: translateX(0);
}

[data-sal="slide-right"] {
  opacity: 0;
  transform: translateX(-30px);
}

[data-sal="slide-right"].sal-animate {
  opacity: 1;
  transform: translateX(0);
}

/* Zoom animations */
[data-sal="zoom-in"] {
  opacity: 0;
  transform: scale(0.8);
}

[data-sal="zoom-in"].sal-animate {
  opacity: 1;
  transform: scale(1);
}

[data-sal="zoom-out"] {
  opacity: 0;
  transform: scale(1.2);
}

[data-sal="zoom-out"].sal-animate {
  opacity: 1;
  transform: scale(1);
}

/* Flip animations */
[data-sal="flip-left"] {
  opacity: 0;
  transform: rotateY(-180deg);
}

[data-sal="flip-left"].sal-animate {
  opacity: 1;
  transform: rotateY(0);
}

[data-sal="flip-right"] {
  opacity: 0;
  transform: rotateY(180deg);
}

[data-sal="flip-right"].sal-animate {
  opacity: 1;
  transform: rotateY(0);
}

[data-sal="flip-up"] {
  opacity: 0;
  transform: rotateX(-180deg);
}

[data-sal="flip-up"].sal-animate {
  opacity: 1;
  transform: rotateX(0);
}

[data-sal="flip-down"] {
  opacity: 0;
  transform: rotateX(180deg);
}

[data-sal="flip-down"].sal-animate {
  opacity: 1;
  transform: rotateX(0);
}