/*
---
File: style.css
Project: Proste Pieniądze
Author: EduTech Polska
---
*/

:root {
  /* Light Theme */
  --color-background-light: #f9f9f9;
  --color-surface-light: #ffffff;
  --color-primary-light: #2d6a4f;
  --color-secondary-light: #40916c;
  --color-accent-light: #52b788;
  --color-text-primary-light: #1b1b1b;
  --color-text-secondary-light: #4a4a4a;
  --color-text-subtle-light: #7a7a7a;
  --color-border-light: #eaeaea;
  --color-success-light: #4caf50;
  --color-success-bg-light: #e8f5e9;
  --color-shadow-light: rgba(0, 0, 0, 0.05);

  /* Dark Theme */
  --color-background-dark: #121212;
  --color-surface-dark: #1e1e1e;
  --color-primary-dark: #74c69d;
  --color-secondary-dark: #52b788;
  --color-accent-dark: #b7e4c7;
  --color-text-primary-dark: #eaeaea;
  --color-text-secondary-dark: #b0b0b0;
  --color-text-subtle-dark: #888888;
  --color-border-dark: #333333;
  --color-success-dark: #81c784;
  --color-success-bg-dark: #1b331c;
  --color-shadow-dark: rgba(0, 0, 0, 0.25);

  /* Typography */
  --font-primary: "system-ui", -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-secondary: "Georgia", "Times New Roman", serif;

  --font-size-base: 16px;
  --font-size-xs: clamp(0.75rem, 0.5vw + 0.65rem, 0.875rem);
  --font-size-sm: clamp(0.875rem, 0.5vw + 0.775rem, 1rem);
  --font-size-md: clamp(1rem, 0.5vw + 0.9rem, 1.125rem);
  --font-size-lg: clamp(1.125rem, 1vw + 0.925rem, 1.5rem);
  --font-size-xl: clamp(1.5rem, 2vw + 1rem, 2.25rem);
  --font-size-xxl: clamp(2rem, 4vw + 1rem, 4rem);

  --line-height-base: 1.7;
  --line-height-heading: 1.3;

  /* Spacing */
  --space-xs: clamp(0.5rem, 1vw, 0.75rem);
  --space-sm: clamp(1rem, 2vw, 1.5rem);
  --space-md: clamp(1.5rem, 3vw, 2.5rem);
  --space-lg: clamp(2.5rem, 5vw, 4rem);
  --space-xl: clamp(4rem, 8vw, 7rem);

  /* Borders & Radius */
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 16px;
  --border-width: 1px;

  /* Transitions */
  --transition-fast: 0.2s ease-in-out;
  --transition-medium: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);

  /* Shadows */
  --shadow-sm: 0 2px 4px var(--color-shadow);
  --shadow-md: 0 4px 12px var(--color-shadow);
  --shadow-lg: 0 10px 30px var(--color-shadow);
}

/* Light theme variables */
body {
  --color-background: var(--color-background-light);
  --color-surface: var(--color-surface-light);
  --color-primary: var(--color-primary-light);
  --color-secondary: var(--color-secondary-light);
  --color-accent: var(--color-accent-light);
  --color-text-primary: var(--color-text-primary-light);
  --color-text-secondary: var(--color-text-secondary-light);
  --color-text-subtle: var(--color-text-subtle-light);
  --color-border: var(--color-border-light);
  --color-success: var(--color-success-light);
  --color-success-bg: var(--color-success-bg-light);
  --color-shadow: var(--color-shadow-light);
}

/* Dark theme variables */
@media (prefers-color-scheme: dark) {
  body {
    --color-background: var(--color-background-dark);
    --color-surface: var(--color-surface-dark);
    --color-primary: var(--color-primary-dark);
    --color-secondary: var(--color-secondary-dark);
    --color-accent: var(--color-accent-dark);
    --color-text-primary: var(--color-text-primary-dark);
    --color-text-secondary: var(--color-text-secondary-dark);
    --color-text-subtle: var(--color-text-subtle-dark);
    --color-border: var(--color-border-dark);
    --color-success: var(--color-success-dark);
    --color-success-bg: var(--color-success-bg-dark);
    --color-shadow: var(--color-shadow-dark);
  }
}

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

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  background-color: var(--color-background);
  color: var(--color-text-secondary);
  line-height: var(--line-height-base);
  transition: background-color var(--transition-fast),
    color var(--transition-fast);
}

/* Custom Scrollbar */
body::-webkit-scrollbar {
  width: 10px;
}

body::-webkit-scrollbar-track {
  background: var(--color-surface);
}

body::-webkit-scrollbar-thumb {
  background-color: var(--color-secondary);
  border-radius: 20px;
  border: 2px solid var(--color-surface);
}

/* Headings and Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-primary);
  color: var(--color-text-primary);
  line-height: var(--line-height-heading);
  font-weight: 700;
}

h1 {
  font-size: var(--font-size-xxl);
}
h2 {
  font-size: var(--font-size-xl);
}
h3 {
  font-size: var(--font-size-lg);
}
h4 {
  font-size: var(--font-size-md);
}

p {
  margin-bottom: var(--space-sm);
  max-width: 75ch;
}

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

a:hover,
a:focus {
  color: var(--color-secondary);
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 4px;
}

ul,
ol {
  padding-left: var(--space-sm);
}

li {
  margin-bottom: var(--space-xs);
}

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

/* Layout Container */
.container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

/* Section Styling */
main > section {
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xl);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-lg);
}

.section-header h2 {
  margin-bottom: var(--space-sm);
}

.section-header p {
  max-width: 65ch;
  margin-left: auto;
  margin-right: auto;
  color: var(--color-text-secondary);
  font-size: var(--font-size-md);
}

.section-divider {
  border: 0;
  height: var(--border-width);
  background-color: var(--color-border);
  margin: 0 auto;
  width: 100%;
  max-width: 200px;
}

/* Header */
.main-header {
  background-color: var(--color-background);
  padding: var(--space-sm) 0;
  border-bottom: var(--border-width) solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
  background-color: color-mix(
    in srgb,
    var(--color-background) 85%,
    transparent
  );
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text-primary);
}

.logo:hover,
.logo:focus {
  text-decoration: none;
  color: var(--color-primary);
}

.logo svg {
  color: var(--color-primary);
  transition: transform var(--transition-fast);
}

.logo:hover svg {
  transform: rotate(15deg);
}

.main-navigation ul {
  display: flex;
  gap: var(--space-md);
  list-style: none;
  padding: 0;
}

.main-navigation a {
  font-weight: 500;
  color: var(--color-text-secondary);
  position: relative;
  padding: var(--space-xs) 0;
}

.main-navigation a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-primary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-medium);
}

.main-navigation a:hover::after,
.main-navigation a:focus::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* Call to Action Button */
.cta-button,
.hero-cta,
.cta-button-small {
  display: inline-block;
  background-color: var(--color-primary);
  color: var(--color-surface);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--border-radius-md);
  font-weight: 600;
  text-decoration: none;
  border: 2px solid transparent;
  transition: all var(--transition-fast);
}

.cta-button:hover,
.hero-cta:hover,
.cta-button:focus,
.hero-cta:focus {
  background-color: var(--color-secondary);
  color: var(--color-surface);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

.cta-button-small {
  padding: calc(var(--space-xs) * 0.75) calc(var(--space-md) * 0.75);
  font-size: var(--font-size-sm);
}

/* Hero Section */
.hero-section {
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xl);
  text-align: center;
}

.hero-content {
  max-width: 80ch;
  margin: 0 auto;
  margin-bottom: var(--space-lg);
}

.hero-content h1 {
  margin-bottom: var(--space-sm);
}

.hero-content .subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

.hero-image-container {
  max-width: 900px;
  margin: 0 auto;
}

.hero-image {
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  object-fit: cover;
  aspect-ratio: 16 / 9;
}

/* Scenarios Section */
.scenarios-section {
  background-color: var(--color-surface);
}

.scenarios-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-md);
}

.scenario-card {
  background-color: var(--color-background);
  padding: var(--space-md);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--border-radius-lg);
  transition: transform var(--transition-medium),
    box-shadow var(--transition-medium);
  display: flex;
  flex-direction: column;
}

.scenario-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
}

.scenario-icon {
  margin-bottom: var(--space-sm);
  color: var(--color-primary);
}

.scenario-card h3 {
  margin-bottom: var(--space-sm);
  color: var(--color-text-primary);
}

.scenario-card p {
  font-size: var(--font-size-sm);
  flex-grow: 1;
}

/* Philosophy Section */
.philosophy-section {
  background-color: var(--color-background);
}

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

.philosophy-text .section-header {
  text-align: left;
  margin-bottom: var(--space-md);
}

.philosophy-text ul {
  list-style: none;
  padding-left: 0;
}

.philosophy-text li {
  padding-left: var(--space-md);
  position: relative;
  font-size: var(--font-size-md);
  margin-bottom: var(--space-md);
}

.philosophy-text li::before {
  content: "✔";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-primary);
  font-weight: 700;
}

.philosophy-image-container {
  display: flex;
  justify-content: center;
  align-items: center;
}

.philosophy-image {
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  object-fit: cover;
  width: 100%;
  max-height: 500px;
}

/* Exercise Section (Accordion) */
.exercise-section {
  background-color: var(--color-surface);
}

.accordion {
  max-width: 800px;
  margin: 0 auto;
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
}

.accordion-item {
  border-bottom: var(--border-width) solid var(--color-border);
}

.accordion-item:last-child {
  border-bottom: none;
}

.accordion-header {
  width: 100%;
  background-color: transparent;
  border: none;
  padding: var(--space-sm) var(--space-md);
  text-align: left;
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background-color var(--transition-fast);
}

.accordion-header:hover {
  background-color: color-mix(in srgb, var(--color-primary) 5%, transparent);
}

.accordion-header svg {
  color: var(--color-primary);
  transition: transform var(--transition-medium);
  flex-shrink: 0;
}

.accordion-item.active .accordion-header svg {
  transform: rotate(180deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-medium),
    padding var(--transition-medium);
}

.accordion-content p,
.accordion-content ul {
  padding: 0 var(--space-md) var(--space-sm);
  font-size: var(--font-size-md);
}

.accordion-content ul {
  list-style-type: disc;
}

.accordion-content li {
  margin-bottom: var(--space-xs);
}

.accordion-content p:first-child {
  padding-top: var(--space-sm);
}

/* Examples Section */
.examples-section {
  background-color: var(--color-background);
}

.examples-list {
  display: grid;
  gap: var(--space-md);
}

.example-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  background-color: var(--color-surface);
  padding: var(--space-md);
  border-radius: var(--border-radius-lg);
  border-left: 4px solid var(--color-primary);
  transition: box-shadow var(--transition-medium),
    transform var(--transition-medium);
}

.example-item:hover {
  box-shadow: var(--shadow-md);
  transform: scale(1.02);
}

.example-icon {
  color: var(--color-primary);
}

.example-content h3 {
  margin-bottom: var(--space-xs);
}

.example-content p {
  margin-bottom: 0;
  font-size: var(--font-size-sm);
}

/* Testimonials Section */
.testimonials-section {
  background-color: var(--color-surface);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-md);
}

.testimonial-card {
  background-color: var(--color-background);
  padding: var(--space-md);
  border-radius: var(--border-radius-lg);
  border-top: 4px solid var(--color-accent);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.testimonial-card p {
  font-family: var(--font-secondary);
  font-size: var(--font-size-md);
  font-style: italic;
  flex-grow: 1;
  margin-bottom: var(--space-sm);
  color: var(--color-text-secondary);
}

.testimonial-card p::before {
  content: "“";
  font-size: 3rem;
  color: var(--color-primary);
  font-weight: 700;
  float: left;
  margin-right: var(--space-xs);
  line-height: 1;
}

.testimonial-card footer {
  margin-top: auto;
}

.testimonial-card cite {
  font-style: normal;
  font-weight: 700;
  color: var(--color-text-primary);
  display: block;
}

.testimonial-card span {
  font-size: var(--font-size-sm);
  color: var(--color-text-subtle);
}

/* Newsletter Section */
.newsletter-section {
  background-color: var(--color-primary);
  color: var(--color-background-light);
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xl);
}

.newsletter-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  align-items: center;
  background-color: var(--color-secondary);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
}

.newsletter-image-container {
  display: none;
}

.newsletter-form-container {
  padding: var(--space-lg);
}

.newsletter-form-container h2 {
  color: #fff;
  margin-bottom: var(--space-sm);
}

.newsletter-form-container p {
  color: var(--color-accent-dark);
  margin-bottom: var(--space-md);
}

#newsletter-form .form-group {
  margin-bottom: var(--space-sm);
}

#newsletter-form label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 500;
}

#newsletter-form input[type="text"],
#newsletter-form input[type="email"] {
  width: 100%;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--border-radius-md);
  border: 2px solid var(--color-accent);
  background-color: var(--color-surface-dark);
  color: var(--color-text-primary-dark);
  font-size: var(--font-size-md);
  transition: border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

#newsletter-form input[type="text"]:focus,
#newsletter-form input[type="email"]:focus {
  outline: none;
  border-color: var(--color-accent-dark);
  box-shadow: 0 0 0 3px
    color-mix(in srgb, var(--color-accent-dark) 30%, transparent);
}

.form-group-checkbox {
  margin: var(--space-md) 0;
  display: flex;
  align-items: flex-start;
  gap: var(--space-xs);
}

.form-group-checkbox input[type="checkbox"] {
  margin-top: 4px;
  accent-color: var(--color-accent-dark);
  width: 1.2em;
  height: 1.2em;
}

.form-group-checkbox label {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary-dark);
}

.form-group-checkbox a {
  color: var(--color-accent-dark);
  text-decoration: underline;
}

#newsletter-form .cta-button {
  width: 100%;
  background-color: var(--color-accent-dark);
  color: var(--color-primary-light);
  padding-top: var(--space-sm);
  padding-bottom: var(--space-sm);
  font-size: var(--font-size-md);
}

#newsletter-form .cta-button:hover {
  background-color: #fff;
}

#form-success-message {
  background-color: var(--color-success-bg-dark);
  color: var(--color-success-dark);
  border: 1px solid var(--color-success-dark);
  border-radius: var(--border-radius-md);
  padding: var(--space-sm);
  text-align: center;
}

#form-success-message p {
  margin: 0;
}

/* Footer */
.main-footer {
  background-color: var(--color-surface);
  color: var(--color-text-secondary);
  padding-top: var(--space-lg);
  border-top: var(--border-width) solid var(--color-border);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.footer-column h4 {
  margin-bottom: var(--space-sm);
  color: var(--color-text-primary);
  font-size: var(--font-size-md);
}

.footer-column p {
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-sm);
}

.footer-column.about a {
  font-weight: 600;
}

.footer-column.links ul {
  list-style: none;
  padding: 0;
}

.footer-column.links li {
  margin-bottom: var(--space-xs);
}

.footer-column.links a {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

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

.footer-column.contact address {
  font-style: normal;
  font-size: var(--font-size-sm);
  line-height: 1.8;
}

.footer-bottom {
  border-top: var(--border-width) solid var(--color-border);
  padding: var(--space-md) 0;
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-subtle);
}

/* Cookie Notice */
.cookie-notice {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--color-surface);
  color: var(--color-text-primary);
  padding: var(--space-sm) 0;
  box-shadow: 0 -5px 15px var(--color-shadow);
  z-index: 2000;
  transform: translateY(100%);
  transition: transform var(--transition-medium);
}

.cookie-notice.active {
  transform: translateY(0);
}

.cookie-notice .container {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-sm);
  text-align: center;
}

.cookie-notice p {
  margin: 0;
}

.cookie-notice a {
  font-weight: 600;
}

/* Animation on scroll */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-medium),
    transform var(--transition-medium);
}

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

/* Responsive Styles */

/* Tablet */
@media (min-width: 768px) {
  .main-navigation {
    display: block;
  }

  .philosophy-grid {
    grid-template-columns: 1.2fr 1fr;
  }

  .example-item {
    flex-direction: row;
    align-items: flex-start;
  }

  .example-icon {
    margin-top: 4px;
  }

  .newsletter-content {
    grid-template-columns: 1fr 1fr;
  }

  .newsletter-image-container {
    display: block;
    height: 100%;
  }

  .newsletter-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .cookie-notice .container {
    flex-direction: row;
    text-align: left;
  }
}

/* Desktop */
@media (min-width: 1024px) {
  .scenarios-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* 2K and up */
@media (min-width: 1440px) {
  .container {
    max-width: 1380px;
  }

  :root {
    --font-size-base: 18px;
  }
}

/* Mobile specific overrides */
@media (max-width: 767px) {
  .main-navigation {
    display: none;
    /* In a real scenario, JS would toggle this. 
           For this pure CSS/HTML setup, we hide it.
           A JS implementation would toggle a class like .nav-open here */
  }

  .cta-button {
    display: none; /* Hide main CTA on mobile header */
  }

  .header-content {
    justify-content: center; /* Center logo if nav is hidden */
  }

  .logo {
    font-size: var(--font-size-md);
  }

  .logo svg {
    width: 32px;
    height: 32px;
  }
}