/**
 * Yanexzepo - Accounting Outsourcing Services
 * Main CSS file
 */

/* ====== CSS Variables ====== */
:root {
  /* Colors */
  --color-background: #FFFFFF;
  --color-accent: #2E7D32;
  --color-accent-light: #E8F5E9;
  --color-text: #212121;
  --color-text-light: #757575;
  --color-text-on-dark: #FFFFFF;
  --color-border: #E0E0E0;
  --color-error: #D32F2F;
  --color-success: #388E3C;
  
  /* Typography */
  --font-body: 'Source Sans Pro', sans-serif;
  --font-heading: 'Raleway', sans-serif;
  --font-size-base: 1rem;
  --font-size-sm: 0.875rem;
  --font-size-xs: 0.75rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.375rem;
  --font-size-2xl: 1.75rem;
  --font-size-3xl: 2.25rem;
  --font-size-4xl: 3rem;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;
  
  /* Container */
  --container-max-width: 1200px;
  --container-padding: var(--spacing-lg);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Breakpoints (mobile-first) */
  --breakpoint-sm: 576px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 992px;
  --breakpoint-xl: 1200px;
  
  /* Z-indexes */
  --z-index-header: 100;
  --z-index-back-to-top: 90;
  --z-index-mobile-menu: 110;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-background);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

p {
  margin-bottom: var(--spacing-md);
}

ul, ol {
  list-style-position: inside;
  margin-bottom: var(--spacing-md);
}

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

a:hover, 
a:focus {
  color: #1B5E20; /* Darker accent for contrast */
  text-decoration: underline;
}

a:focus,
button:focus,
input:focus,
select:focus,
textarea:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

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

/* ====== Utility Classes ====== */
.container {
  margin: 0 auto;
  max-width: var(--container-max-width);
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
  width: 100%;
}

.sr-only {
  border: 0;
  clip: rect(0, 0, 0, 0);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  width: 1px;
}

.section-title {
  color: var(--color-text);
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-sm);
  text-align: center;
}

.section-subtitle {
  color: var(--color-text-light);
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-xl);
  text-align: center;
}

@media (min-width: 768px) {
  .section-title {
    font-size: var(--font-size-3xl);
  }
}

/* ====== Skip Link ====== */
.skip-link {
  background-color: var(--color-accent);
  color: var(--color-text-on-dark);
  left: 0;
  padding: var(--spacing-sm) var(--spacing-md);
  position: absolute;
  top: -40px;
  transition: top var(--transition-fast);
  z-index: var(--z-index-header) + 1;
}

.skip-link:focus {
  top: 0;
}

/* ====== Header & Navigation ====== */
.header {
  background-color: var(--color-background);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-md) 0;
  position: sticky;
  top: 0;
  width: 100%;
  z-index: var(--z-index-header);
}

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

.logo {
  display: block;
}

.logo__image {
  height: 40px;
  width: auto;
}

.nav__toggle {
  align-items: center;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  justify-content: center;
  padding: var(--spacing-xs);
}

.nav__toggle .material-icons {
  color: var(--color-text);
  font-size: var(--font-size-xl);
}

.nav__menu {
  align-items: center;
  background-color: var(--color-background);
  border-top: 1px solid var(--color-border);
  display: none;
  left: 0;
  list-style: none;
  margin: 0;
  padding: 0;
  position: absolute;
  right: 0;
  top: 100%;
  z-index: var(--z-index-mobile-menu);
}

.nav__menu--active {
  display: block;
}

.nav__item {
  border-bottom: 1px solid var(--color-border);
}

.nav__link {
  display: block;
  padding: var(--spacing-md);
  transition: background-color var(--transition-fast);
}

.nav__link:hover,
.nav__link:focus {
  background-color: var(--color-accent-light);
  text-decoration: none;
}

.nav__link--highlight {
  background-color: var(--color-accent);
  color: var(--color-text-on-dark);
}

.nav__link--highlight:hover,
.nav__link--highlight:focus {
  background-color: #1B5E20; /* Darker accent */
  color: var(--color-text-on-dark);
}

@media (min-width: 768px) {
  .nav__toggle {
    display: none;
  }
  
  .nav__menu {
    background-color: transparent;
    border-top: none;
    display: flex;
    position: static;
  }
  
  .nav__item {
    border-bottom: none;
    margin-left: var(--spacing-md);
  }
  
  .nav__link {
    padding: var(--spacing-xs) var(--spacing-md);
  }
  
  .nav__link--highlight {
    border-radius: 4px;
  }
}

/* ====== Hero Section ====== */
.hero {
  background-color: var(--color-accent-light);
  padding: var(--spacing-3xl) 0;
}

.hero__container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.hero__content {
  max-width: 600px;
}

.hero__title {
  color: var(--color-text);
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-md);
}

.hero__slogan {
  color: var(--color-accent);
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.hero__text {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-lg);
}

.hero__image {
  align-self: center;
  max-width: 500px;
}

@media (min-width: 768px) {
  .hero__container {
    align-items: center;
    flex-direction: row;
    justify-content: space-between;
  }
  
  .hero__title {
    font-size: var(--font-size-4xl);
  }
}

/* ====== Button Styles ====== */
.btn {
  border: none;
  border-radius: 4px;
  cursor: pointer;
  display: inline-block;
  font-family: var(--font-heading);
  font-size: var(--font-size-base);
  font-weight: 600;
  padding: var(--spacing-md) var(--spacing-xl);
  text-align: center;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.btn:hover, 
.btn:focus {
  text-decoration: none;
  transform: translateY(-2px);
}

.btn--primary {
  background-color: var(--color-accent);
  color: var(--color-text-on-dark);
}

.btn--primary:hover, 
.btn--primary:focus {
  background-color: #1B5E20; /* Darker accent */
  color: var(--color-text-on-dark);
}

.btn--full {
  display: block;
  width: 100%;
}

/* ====== Services Section ====== */
.services {
  padding: var(--spacing-3xl) 0;
}

.services__grid {
  display: grid;
  gap: var(--spacing-xl);
  grid-template-columns: 1fr;
}

.service-card {
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: var(--spacing-xl);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.service-card:hover,
.service-card:focus {
  transform: translateY(-5px);
}

.service-card__icon {
  align-items: center;
  background-color: var(--color-accent-light);
  border-radius: 50%;
  color: var(--color-accent);
  display: flex;
  height: 60px;
  justify-content: center;
  margin-bottom: var(--spacing-lg);
  width: 60px;
}

.service-card__icon .material-icons {
  font-size: var(--font-size-2xl);
}

.service-card__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-md);
}

.service-card__list {
  list-style-type: none;
}

.service-card__list li {
  margin-bottom: var(--spacing-sm);
  padding-left: var(--spacing-lg);
  position: relative;
}

.service-card__list li::before {
  color: var(--color-accent);
  content: "•";
  left: 0;
  position: absolute;
}

@media (min-width: 768px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .services__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ====== Metrics Section ====== */
.metrics {
  background-color: var(--color-accent-light);
  padding: var(--spacing-3xl) 0;
}

.metrics__grid {
  display: grid;
  gap: var(--spacing-xl);
  grid-template-columns: 1fr;
}

.metric-card {
  background-color: var(--color-background);
  border-radius: 4px;
  padding: var(--spacing-xl);
  text-align: center;
}

.metric-card__number {
  color: var(--color-accent);
  font-family: var(--font-heading);
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.metric-card__text {
  font-size: var(--font-size-lg);
}

@media (min-width: 576px) {
  .metrics__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .metrics__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ====== Process Section ====== */
.process {
  padding: var(--spacing-3xl) 0;
}

.process__steps {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.process-step {
  align-items: flex-start;
  display: flex;
  gap: var(--spacing-lg);
}

.process-step__number {
  align-items: center;
  background-color: var(--color-accent);
  border-radius: 50%;
  color: var(--color-text-on-dark);
  display: flex;
  flex-shrink: 0;
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  font-weight: 700;
  height: 50px;
  justify-content: center;
  width: 50px;
}

.process-step__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
}

/* ====== Cases Section ====== */
.cases {
  background-color: var(--color-accent-light);
  padding: var(--spacing-3xl) 0;
}

.cases__grid {
  display: grid;
  gap: var(--spacing-xl);
  grid-template-columns: 1fr;
}

.case-card {
  background-color: var(--color-background);
  border-radius: 4px;
  overflow: hidden;
}

.case-card__image {
  height: 0;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
  position: relative;
}

.case-card__img {
  height: 100%;
  left: 0;
  object-fit: cover;
  position: absolute;
  top: 0;
  width: 100%;
}

.case-card__content {
  padding: var(--spacing-xl);
}

.case-card__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
}

.case-card__client {
  color: var(--color-text-light);
  font-style: italic;
  margin-top: var(--spacing-md);
}

@media (min-width: 768px) {
  .cases__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .cases__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ====== Concerns Section ====== */
.concerns {
  padding: var(--spacing-3xl) 0;
}

.concerns__grid {
  display: grid;
  gap: var(--spacing-xl);
  grid-template-columns: 1fr;
}

.concern-card {
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: var(--spacing-xl);
  transition: transform var(--transition-normal);
}

.concern-card:hover,
.concern-card:focus {
  transform: translateY(-5px);
}

.concern-card__question {
  color: var(--color-accent);
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-md);
}

@media (min-width: 768px) {
  .concerns__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ====== Benefits Section ====== */
.benefits {
  background-color: var(--color-accent-light);
  padding: var(--spacing-3xl) 0;
}

.benefits__grid {
  display: grid;
  gap: var(--spacing-xl);
  grid-template-columns: 1fr;
}

.benefit-card {
  background-color: var(--color-background);
  border-radius: 4px;
  padding: var(--spacing-xl);
  text-align: center;
}

.benefit-card__icon {
  align-items: center;
  background-color: var(--color-accent-light);
  border-radius: 50%;
  color: var(--color-accent);
  display: flex;
  height: 70px;
  justify-content: center;
  margin: 0 auto var(--spacing-lg);
  width: 70px;
}

.benefit-card__icon .material-icons {
  font-size: var(--font-size-2xl);
}

.benefit-card__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-md);
}

@media (min-width: 576px) {
  .benefits__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .benefits__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ====== Transition Section ====== */
.transition {
  padding: var(--spacing-3xl) 0;
}

.transition__content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.transition__image {
  align-self: center;
  max-width: 500px;
}

.transition-step {
  margin-bottom: var(--spacing-lg);
}

.transition-step__title {
  color: var(--color-accent);
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-sm);
}

@media (min-width: 768px) {
  .transition__content {
    align-items: center;
    flex-direction: row;
    gap: var(--spacing-2xl);
  }
  
  .transition__image,
  .transition__steps {
    flex: 1;
  }
}

/* ====== Contact Section ====== */
.contact {
  background-color: var(--color-accent-light);
  padding: var(--spacing-3xl) 0;
}

.contact__content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.contact__info {
  background-color: var(--color-background);
  border-radius: 4px;
  padding: var(--spacing-xl);
}

.contact__item {
  align-items: center;
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.contact__item p {
  margin-bottom: 0;
}

.contact__item .material-icons {
  color: var(--color-accent);
}

.contact__map {
  border-radius: 4px;
  margin-top: var(--spacing-xl);
  overflow: hidden;
}

.contact__map iframe {
  display: block;
}

.contact__map-img {
  border-radius: 4px;
  width: 100%;
}

.contact__form-container {
  background-color: var(--color-background);
  border-radius: 4px;
  padding: var(--spacing-xl);
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.form-input,
.form-select,
.form-textarea {
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  padding: var(--spacing-md);
  transition: border-color var(--transition-fast);
  width: 100%;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-accent);
}

.form-input--error,
.form-select--error,
.form-textarea--error {
  border-color: var(--color-error);
}

.error-message {
  color: var(--color-error);
  display: block;
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xs);
}

@media (min-width: 768px) {
  .contact__content {
    flex-direction: row;
  }
  
  .contact__info,
  .contact__form-container {
    flex: 1;
  }
}

/* ====== Footer ====== */
.footer {
  background-color: #F5F5F5;
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer__grid {
  display: grid;
  gap: var(--spacing-xl);
  grid-template-columns: 1fr;
}

.footer__brand {
  margin-bottom: var(--spacing-lg);
}

.footer__logo {
  display: inline-block;
  margin-bottom: var(--spacing-md);
}

.footer__logo-img {
  height: 30px;
  width: auto;
}

.footer__slogan {
  color: var(--color-accent);
  font-family: var(--font-heading);
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.footer__address,
.footer__contact {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-sm);
}

.footer__title {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-md);
}

.footer__menu {
  list-style: none;
}

.footer__menu li {
  margin-bottom: var(--spacing-xs);
}

.blog-teaser__item {
  margin-bottom: var(--spacing-md);
}

.blog-teaser__title {
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-xs);
}

.blog-teaser__date {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
}

.footer__bottom {
  border-top: 1px solid var(--color-border);
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  text-align: center;
}

.footer__copyright {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
}

@media (min-width: 576px) {
  .footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .footer__grid {
    grid-template-columns: 2fr 1fr 1fr 2fr;
  }
}

/* ====== Back to Top Button ====== */
.back-to-top {
  align-items: center;
  background-color: var(--color-accent);
  border-radius: 50%;
  bottom: var(--spacing-xl);
  color: var(--color-text-on-dark);
  display: flex;
  height: 50px;
  justify-content: center;
  opacity: 0;
  position: fixed;
  right: var(--spacing-xl);
  transition: opacity var(--transition-normal), transform var(--transition-fast);
  visibility: hidden;
  width: 50px;
  z-index: var(--z-index-back-to-top);
}

.back-to-top:hover,
.back-to-top:focus {
  background-color: #1B5E20; /* Darker accent */
  color: var(--color-text-on-dark);
  transform: translateY(-5px);
}

.back-to-top--visible {
  opacity: 1;
  visibility: visible;
}

/* ====== Accessibility Enhancements ====== */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
  
  .btn:hover,
  .service-card:hover,
  .concern-card:hover,
  .back-to-top:hover {
    transform: none !important;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-background: #121212;
    --color-accent: #4CAF50;
    --color-accent-light: #1E3320;
    --color-text: #E0E0E0;
    --color-text-light: #9E9E9E;
    --color-text-on-dark: #FFFFFF;
    --color-border: #424242;
  }
  
  .hero,
  .metrics,
  .cases,
  .benefits,
  .contact {
    background-color: #1A1A1A;
  }
  
  .footer {
    background-color: #0A0A0A;
  }
  
  .service-card,
  .metric-card,
  .case-card,
  .concern-card,
  .benefit-card,
  .contact__info,
  .contact__form-container {
    background-color: #1E1E1E;
  }
  
  .service-card__icon,
  .benefit-card__icon {
    background-color: var(--color-accent-light);
  }
}


#main-content {
  min-height: calc(100vh - 400px);
  padding: var(--spacing-3xl) 0;
}

.thankyou__content {
  background-color: var(--color-accent-light);
  box-sizing: border-box;
  margin: 0 auto;
  max-width: 100%;
  padding: var(--spacing-2xl) var(--spacing-lg);
  text-align: center;
  width: 600px;
}

.thankyou__icon {
  color: var(--color-accent);
  font-size: 4rem !important;
}

.thankyou__icon .material-icons {
  font-size: inherit !important;
}

.thankyou__details {
  background-color: var(--color-background);
  box-sizing: border-box;
  margin: 0 auto 2rem;
  max-width: 100%;
  padding: var(--spacing-lg);
  text-align: left;
  width: 400px;
}

.thankyou__subtitle {
  text-align: center;
}

.thankyou__actions {
  margin-bottom: var(--spacing-2xl);
}

.thankyou__contact {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
}

.thankyou__contact-item {
  align-items: center;
  display: flex;
  gap: var(--spacing-sm);
}

.cookie-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.cookie-table th,
.cookie-table td {
  padding: var(--spacing-md);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.cookie-table th {
  font-weight: 700;
  color: var(--color-text);
}

.cookie-table td {
  color: var(--color-text-muted);
}