/* ========================================
   CONSOLIDATED RESPONSIVE DESIGN SYSTEM
   Mobile First Approach - Three Main Breakpoints
======================================== */

/* CSS Custom Properties for Breakpoints */
:root {
  /* Responsive Breakpoints */
  --breakpoint-mobile: 0;
  --breakpoint-tablet: 768px;
  --breakpoint-desktop: 1024px;
  
  /* Container Max Widths */
  --container-mobile: 100%;
  --container-tablet: 768px;
  --container-desktop: 1200px;
  
  /* Responsive Spacing Scale */
  --spacing-mobile: 1rem;
  --spacing-tablet: 1.5rem;
  --spacing-desktop: 2rem;
}

/* ========================================
   BASE/MOBILE STYLES (Default - 0px+)
======================================== */

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

/* Typography - Mobile */
.hero__title {
  font-size: clamp(2rem, 5vw, 2.5rem);
  line-height: 1.1;
}

.hero__subtitle {
  font-size: clamp(1.125rem, 4vw, 1.25rem);
}

.hero__description {
  font-size: 1rem;
}

.section__title {
  font-size: clamp(1.75rem, 5vw, 2rem);
  margin-bottom: 2rem;
}

/* Grid Layouts - Mobile */
.services__grid,
.advantages__grid {
  grid-template-columns: 1fr;
  gap: var(--spacing-mobile);
}

.contacts__content {
  grid-template-columns: 1fr;
  gap: var(--spacing-mobile);
}

/* Hero - Mobile */
.hero__inner {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  gap: var(--spacing-mobile);
}

.hero__image {
  display: none;
}

/* Navigation - Mobile */
.header__nav {
  display: none;
  position: fixed;
  top: var(--header-height, 80px);
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.98);
  backdrop-filter: blur(20px);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  z-index: 1000;
  animation: mobileMenuSlide 0.3s ease-out;
}

.header__nav.active {
  display: block;
}

.nav__list {
  flex-direction: column;
  padding: var(--spacing-mobile);
  gap: var(--spacing-mobile);
}

.header__contact {
  display: none;
}

.burger {
  display: flex;
}

/* Calculator - Mobile */
.calculator__content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-mobile);
}

.calculator__section {
  padding: var(--spacing-mobile);
  margin-bottom: var(--spacing-mobile);
  border-radius: var(--border-radius-lg);
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
}

/* Calculator breakdown text improvements */
.calculator__breakdown-item {
  flex-wrap: nowrap;
  white-space: nowrap;
  overflow-wrap: break-word;
  min-width: 0;
}

.calculator__breakdown-item span:first-child {
  flex: 1;
  min-width: 0;
  white-space: normal;
  word-wrap: break-word;
  overflow-wrap: break-word;
  hyphens: auto;
  margin-right: 8px;
}

.calculator__breakdown-item span:last-child {
  flex-shrink: 0;
  white-space: nowrap;
  font-weight: 600;
}

/* Fix radio button stability issues */
.calculator__radio {
  position: relative;
  transform: translateZ(0); /* Force hardware acceleration */
}

.calculator__radio-mark {
  pointer-events: none; /* Prevent mark from intercepting clicks */
  position: relative;
  z-index: 1;
}

.calculator__grid {
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-mobile);
}

.calculator__option {
  padding: var(--spacing-mobile);
  min-height: 54px;
  font-size: 0.95rem;
  border-radius: var(--border-radius-md);
}

.calculator__summary {
  order: 2;
  position: sticky;
  top: 80px;
  z-index: 10;
}

.calculator__price-card {
  padding: var(--spacing-mobile);
  background: rgba(0, 0, 0, 0.97);
  border: 2px solid rgba(255, 153, 0, 0.4);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-xl);
}

.calculator__total-price {
  font-size: clamp(2rem, 6vw, 2.5rem);
  font-weight: 800;
  color: var(--color-accent-orange);
}

/* Forms - Mobile */
.form-input {
  padding: var(--spacing-mobile);
  font-size: 1rem;
  min-height: 48px;
}

.btn {
  padding: var(--spacing-mobile);
  font-size: 1rem;
  min-height: 48px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Individual order button - allow wrapping on mobile */
.calculator__individual-btn {
  white-space: normal;
  text-align: center;
  line-height: 1.4;
  padding: var(--spacing-mobile) var(--spacing-sm);
}

/* Tobacco Showcase - Mobile */
.tobacco-showcase__inner {
  grid-template-columns: 1fr;
  gap: var(--spacing-mobile);
  text-align: center;
}

.tobacco-showcase__image {
  order: 1;
}

.tobacco-showcase__content {
  order: 2;
  padding: var(--spacing-mobile);
}

.tobacco-showcase__stats {
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-mobile);
}

.stat-item {
  padding: var(--spacing-mobile);
}

.stat-item__number {
  font-size: clamp(1.5rem, 4vw, 1.8rem);
}

.stat-item__label {
  font-size: clamp(0.75rem, 2vw, 0.8rem);
}

/* Footer - Mobile */
.footer__content {
  flex-direction: column;
  gap: var(--spacing-mobile);
  text-align: center;
}

.footer__info {
  flex-direction: column;
  gap: var(--spacing-mobile);
}

.footer__links {
  text-align: center;
}

.footer__socials {
  justify-content: center;
}

/* ========================================
   NARROW TABLET STYLES (768px to 1000px)
   For tablets with limited width
======================================== */

@media (min-width: 768px) and (max-width: 950px) {
  /* Hide phone number on narrow tablets */
  .header__phone {
    display: none;
  }
  
  /* Compact navigation */
  .nav__list {
    gap: var(--spacing-sm);
    font-size: 0.85rem;
  }
  
  /* Smaller contact button */
  .header__contact .btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.8rem;
    min-height: 36px;
  }
}

@media (min-width: 768px) and (max-width: 850px) {
  /* Use burger menu for very narrow tablets */
  .header__nav {
    display: none;
    position: fixed;
    top: var(--header-height, 80px);
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.98);
    backdrop-filter: blur(20px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 1000;
  }
  
  .header__nav.active {
    display: block;
  }
  
  .nav__list {
    flex-direction: column;
    padding: var(--spacing-mobile);
    gap: var(--spacing-mobile);
  }
  
  .burger {
    display: flex;
  }
  
  .header__contact .btn {
    font-size: 0.75rem;
    padding: var(--spacing-xs) var(--spacing-xs);
  }
}

/* ========================================
   TABLET STYLES (768px+)
   Horizontal Mobile + Small Tablets
======================================== */

@media (min-width: 768px) {
  /* Container */
  .container {
    max-width: var(--container-tablet);
    padding: 0 var(--spacing-tablet);
  }
  
  /* Typography - Tablet */
  .hero__title {
    font-size: clamp(3rem, 6vw, 3.5rem);
  }
  
  .hero__subtitle {
    font-size: clamp(1.25rem, 4vw, 1.5rem);
  }
  
  .hero__description {
    font-size: 1.125rem;
  }
  
  .section__title {
    font-size: clamp(2.5rem, 5vw, 3rem);
  }
  
  /* Grid Layouts - Tablet */
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-tablet);
  }
  
  .advantages__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-tablet);
  }
  
  .contacts__content {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-tablet);
  }
  
  /* Navigation - Tablet */
  .header__nav {
    display: block;
    position: static;
    background: none;
    box-shadow: none;
  }
  
  .nav__list {
    flex-direction: row;
    padding: 0;
    gap: var(--spacing-tablet);
    font-size: 0.9rem;
  }
  
  .header__contact {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
  }
  
  .header__contact .btn {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.85rem;
    min-height: 36px;
    white-space: nowrap;
  }
  
  .header__contact a[href^="tel:"] {
    font-size: 0.9rem;
    white-space: nowrap;
  }
  
  .burger {
    display: none;
  }
  
  /* Mobile Navigation Animation */
  @keyframes mobileMenuSlide {
    from {
      opacity: 0;
      transform: translateY(-20px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  /* Hero - Tablet */
  .hero__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    text-align: left;
    gap: var(--spacing-tablet);
  }
  
  .hero__image {
    display: block;
  }
  
  /* Calculator - Tablet */
  .calculator__content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-tablet);
    max-width: 900px;
    margin: 0 auto;
  }
  
  .calculator__section {
    padding: var(--spacing-tablet);
  }
  
  .calculator__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-tablet);
  }
  
  .calculator__summary {
    order: 0;
    position: static;
  }
  
  .calculator__price-card {
    padding: var(--spacing-tablet);
  }
  
  .calculator__total-price {
    font-size: clamp(2.2rem, 4vw, 2.8rem);
  }
  
  /* Individual order button - tablet */
  .calculator__individual-btn {
    padding: var(--spacing-tablet) var(--spacing-md);
    font-size: 1rem;
    white-space: normal;
    line-height: 1.3;
  }
  
  /* Tobacco Showcase - Tablet */
  .tobacco-showcase__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    text-align: left;
    gap: var(--spacing-tablet);
  }
  
  .tobacco-showcase__image {
    order: 0;
  }
  
  .tobacco-showcase__content {
    order: 0;
    padding: var(--spacing-tablet);
  }
  
  .tobacco-showcase__stats {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-tablet);
  }
  
  /* Footer - Tablet */
  .footer__content {
    flex-direction: column;
    gap: var(--spacing-tablet);
    text-align: center;
  }
  
  .footer__info {
    flex-direction: row;
    justify-content: center;
    gap: var(--spacing-tablet);
  }
  
  .footer__links {
    text-align: center;
  }
}

/* ========================================
   DESKTOP STYLES (1024px+)
   Desktop & Large Screens
======================================== */

@media (min-width: 1024px) {
  /* Container */
  .container {
    max-width: var(--container-desktop);
    padding: 0 var(--spacing-desktop);
  }
  
  /* Typography - Desktop */
  .hero__title {
    font-size: clamp(3.5rem, 5vw, 4rem);
  }
  
  .hero__subtitle {
    font-size: clamp(1.5rem, 3vw, 1.75rem);
  }
  
  .hero__description {
    font-size: 1.25rem;
  }
  
  .section__title {
    font-size: clamp(3rem, 4vw, 3.5rem);
  }
  
  /* Grid Layouts - Desktop */
  .services__grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-desktop);
  }
  
  .advantages__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-desktop);
  }
  
  /* Calculator - Desktop */
  .calculator__content {
    max-width: 1200px;
    gap: var(--spacing-desktop);
  }
  
  .calculator__section {
    padding: var(--spacing-desktop);
  }
  
  .calculator__price-card {
    padding: var(--spacing-desktop);
  }
  
  .calculator__total-price {
    font-size: clamp(2.5rem, 4vw, 3.2rem);
  }
  
  /* Enhanced hover states for desktop */
  .btn:hover,
  .calculator__option:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
  }
  
  .nav__link:hover {
    color: var(--color-accent-orange);
  }
  
  /* Tobacco Showcase - Desktop */
  .tobacco-showcase__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    text-align: left;
    gap: var(--spacing-desktop);
  }
  
  .tobacco-showcase__stats {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-desktop);
  }
  
  .stat-item {
    padding: var(--spacing-desktop);
  }
  
  .stat-item__number {
    font-size: clamp(2rem, 3vw, 2.5rem);
  }
  
  .stat-item__label {
    font-size: clamp(0.9rem, 1.5vw, 1rem);
  }
  
  /* Footer - Desktop */
  .footer__content {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    text-align: left;
  }
  
  .footer__info {
    flex-direction: row;
    align-items: center;
    gap: var(--spacing-desktop);
  }
  
  .footer__links {
    text-align: right;
  }
}

/* ========================================
   RESPONSIVE UTILITIES
======================================== */

/* Fluid spacing system */
.spacing-xs { margin: clamp(0.25rem, 1vw, 0.5rem); }
.spacing-sm { margin: clamp(0.5rem, 2vw, 1rem); }
.spacing-md { margin: clamp(1rem, 3vw, 1.5rem); }
.spacing-lg { margin: clamp(1.5rem, 4vw, 2rem); }
.spacing-xl { margin: clamp(2rem, 5vw, 3rem); }

/* Responsive text utilities */
.text-mobile { font-size: clamp(0.875rem, 3vw, 1rem); }
.text-tablet { font-size: clamp(1rem, 2.5vw, 1.125rem); }
.text-desktop { font-size: clamp(1.125rem, 2vw, 1.25rem); }

/* ========================================
   ACCESSIBILITY & SPECIAL CASES
======================================== */

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
  .btn,
  .calculator__option,
  .calculator__radio,
  .calculator__checkbox {
    min-height: 48px;
    padding: var(--spacing-mobile);
    touch-action: manipulation;
    -webkit-tap-highlight-color: rgba(255, 153, 0, 0.1);
  }
  
  .form-input {
    min-height: 48px;
    font-size: 16px; /* Prevents zoom on iOS */
  }
  
  /* Enhanced touch feedback */
  .calculator__option:active,
  .calculator__radio:active,
  .btn:active {
    transform: scale(0.95);
    transition: transform 0.1s ease;
  }
}

/* Landscape orientation on mobile */
@media (max-width: 767px) and (orientation: landscape) {
  .hero {
    min-height: 100vh;
  }
  
  .hero__title {
    font-size: clamp(1.5rem, 4vw, 2rem);
  }
  
  .section {
    padding: var(--spacing-mobile) 0;
  }
  
  .calculator__grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .calculator__price-card {
    position: static;
  }
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* High contrast mode */
@media (prefers-contrast: high) {
  .btn,
  .calculator__option,
  .form-input {
    border: 2px solid currentColor;
  }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
  .modal__content,
  .calculator__order-form {
    background-color: var(--color-gray);
    color: var(--color-white);
  }
  
  .form-input {
    background-color: var(--color-gray);
    color: var(--color-white);
    border-color: var(--color-gray-medium);
  }
}

/* Print styles */
@media print {
  .header,
  .footer,
  .hero,
  .btn,
  .modal {
    display: none !important;
  }
  
  .container {
    max-width: none;
    padding: 0;
  }
  
  .section {
    break-inside: avoid;
    background: white !important;
    color: black !important;
  }
}