/*
 * AMCDVN Premium Apple-Design CSS System
 * Based on Apple-design-analysis Specs
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700&display=swap');

:root {
  /* Colors */
  --color-primary: #0066cc;
  --color-primary-focus: #0071e3;
  --color-primary-on-dark: #2997ff;
  --color-ink: #1d1d1f;
  --color-body: #1d1d1f;
  --color-body-on-dark: #ffffff;
  --color-body-muted: #cccccc;
  --color-ink-muted-80: #333333;
  --color-ink-muted-48: #7a7a7a;
  --color-divider-soft: #f0f0f0;
  --color-hairline: #e0e0e0;
  --color-canvas: #ffffff;
  --color-canvas-parchment: #f5f5f7;
  --color-surface-pearl: #fafafc;
  --color-surface-tile-1: #272729;
  --color-surface-tile-2: #2a2a2c;
  --color-surface-tile-3: #252527;
  --color-surface-black: #000000;
  --color-surface-chip-translucent: rgba(210, 210, 215, 0.64);
  --color-on-primary: #ffffff;
  --color-on-dark: #ffffff;

  /* Border Radii */
  --rounded-none: 0px;
  --rounded-xs: 5px;
  --rounded-sm: 8px;
  --rounded-md: 11px;
  --rounded-lg: 18px;
  --rounded-pill: 9999px;
  --rounded-full: 9999px;

  /* Spacing */
  --spacing-xxs: 4px;
  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 17px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;
  --spacing-section: 80px;

  /* Font Stack */
  --font-family-display: "SF Pro Display", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-family-text: "SF Pro Text", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* Base resets & resets conforming to Apple Specs */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family-text);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.47;
  letter-spacing: -0.374px;
  color: var(--color-body);
  background-color: var(--color-canvas);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-display);
  font-weight: 600;
  color: var(--color-ink);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: opacity 0.2s ease;
}
a:hover {
  opacity: 0.8;
}

/* Common Layout Containers */
.container-max {
  max-width: 1440px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-lg);
  padding-right: var(--spacing-lg);
}

.text-container {
  max-width: 980px;
  margin-left: auto;
  margin-right: auto;
}

/* TYPOGRAPHY TOKENS */
.t-hero-display {
  font-family: var(--font-family-display);
  font-size: 56px;
  font-weight: 600;
  line-height: 1.07;
  letter-spacing: -0.28px;
}
@media (max-width: 1068px) {
  .t-hero-display {
    font-size: 40px;
  }
}
@media (max-width: 640px) {
  .t-hero-display {
    font-size: 34px;
  }
}
@media (max-width: 419px) {
  .t-hero-display {
    font-size: 28px;
  }
}

.t-display-lg {
  font-family: var(--font-family-display);
  font-size: 40px;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.4px; /* Apple tight tracking */
}
@media (max-width: 640px) {
  .t-display-lg {
    font-size: 30px;
  }
}

.t-display-md {
  font-family: var(--font-family-text);
  font-size: 34px;
  font-weight: 600;
  line-height: 1.47;
  letter-spacing: -0.374px;
}

.t-lead {
  font-family: var(--font-family-display);
  font-size: 28px;
  font-weight: 400;
  line-height: 1.14;
  letter-spacing: 0.196px;
}
@media (max-width: 640px) {
  .t-lead {
    font-size: 20px;
  }
}

.t-lead-airy {
  font-family: var(--font-family-text);
  font-size: 24px;
  font-weight: 300;
  line-height: 1.5;
  letter-spacing: 0px;
}

.t-tagline {
  font-family: var(--font-family-display);
  font-size: 21px;
  font-weight: 600;
  line-height: 1.19;
  letter-spacing: 0.231px;
}

.t-body-strong {
  font-family: var(--font-family-text);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.24;
  letter-spacing: -0.374px;
}

.t-body {
  font-family: var(--font-family-text);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.47;
  letter-spacing: -0.374px;
}

.t-dense-link {
  font-family: var(--font-family-text);
  font-size: 17px;
  font-weight: 400;
  line-height: 2.41;
  letter-spacing: 0px;
}

.t-caption {
  font-family: var(--font-family-text);
  font-size: 14px;
  font-weight: 400;
  line-height: 1.43;
  letter-spacing: -0.224px;
}

.t-caption-strong {
  font-family: var(--font-family-text);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.29;
  letter-spacing: -0.224px;
}

.t-button-large {
  font-family: var(--font-family-text);
  font-size: 18px;
  font-weight: 300;
  line-height: 1.0;
  letter-spacing: 0px;
}

.t-button-utility {
  font-family: var(--font-family-text);
  font-size: 14px;
  font-weight: 400;
  line-height: 1.29;
  letter-spacing: -0.224px;
}

.t-fine-print {
  font-family: var(--font-family-text);
  font-size: 12px;
  font-weight: 400;
  line-height: 1.4;
  letter-spacing: -0.12px;
}

.t-micro-legal {
  font-family: var(--font-family-text);
  font-size: 10px;
  font-weight: 400;
  line-height: 1.3;
  letter-spacing: -0.08px;
}

.t-nav-link {
  font-family: var(--font-family-text);
  font-size: 12px;
  font-weight: 400;
  line-height: 1.0;
  letter-spacing: -0.12px;
}

/* COMPONENTS */

/* global-nav */
.global-nav {
  background-color: var(--color-surface-black);
  color: var(--color-on-dark);
  height: 44px;
  width: 100%;
  display: flex;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
  font-family: var(--font-family-text);
}

.global-nav-container {
  max-width: 1024px;
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.global-nav-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--color-on-dark);
  font-weight: 600;
  text-decoration: none;
  font-size: 14px;
}

.global-nav-links {
  display: flex;
  gap: var(--spacing-xl);
}
@media (max-width: 833px) {
  .global-nav-links {
    display: none; /* Collapses to hamburger in production/JS, we can hide or use hamburger */
  }
}

.global-nav-link {
  color: var(--color-body-muted);
  text-decoration: none;
  font-size: 12px;
  letter-spacing: -0.12px;
  transition: color 0.2s ease;
}
.global-nav-link:hover {
  color: var(--color-on-dark);
}

.global-nav-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

/* sub-nav-frosted */
.sub-nav-frosted {
  background-color: rgba(245, 245, 247, 0.8);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  color: var(--color-ink);
  height: 52px;
  width: 100%;
  display: flex;
  align-items: center;
  position: sticky;
  top: 44px;
  z-index: 99;
  border-bottom: 1px solid var(--color-divider-soft);
}

.sub-nav-container {
  max-width: 980px;
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.sub-nav-title {
  font-family: var(--font-family-display);
  font-size: 21px;
  font-weight: 600;
  letter-spacing: 0.231px;
  color: var(--color-ink);
  text-decoration: none;
}
@media (max-width: 640px) {
  .sub-nav-title {
    font-size: 17px;
  }
}

.sub-nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.sub-nav-link {
  color: var(--color-ink-muted-80);
  font-size: 12px;
  text-decoration: none;
  transition: color 0.2s ease;
}
.sub-nav-link:hover {
  color: var(--color-primary);
}
@media (max-width: 735px) {
  .sub-nav-links-wrap {
    display: none;
  }
}

/* BUTTONS */
.button-primary {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  font-family: var(--font-family-text);
  font-size: 14px;
  font-weight: 400;
  border: none;
  border-radius: var(--rounded-pill);
  padding: 8px 16px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.1s ease, background-color 0.2s ease;
  text-decoration: none;
  text-align: center;
}
.button-primary:active {
  transform: scale(0.95);
  background-color: var(--color-primary-focus);
}
.button-primary:focus {
  outline: 2px solid var(--color-primary-focus);
}

.button-primary-large {
  font-size: 17px;
  padding: 11px 22px;
}

.button-secondary-pill {
  background-color: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  font-family: var(--font-family-text);
  font-size: 14px;
  font-weight: 400;
  border-radius: var(--rounded-pill);
  padding: 8px 16px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.1s ease, background-color 0.2s ease;
  text-decoration: none;
  text-align: center;
}
.button-secondary-pill:active {
  transform: scale(0.95);
  background-color: rgba(0, 102, 204, 0.05);
}
.button-secondary-pill-large {
  font-size: 17px;
  padding: 11px 22px;
}

.button-dark-utility {
  background-color: var(--color-ink);
  color: var(--color-on-dark);
  font-family: var(--font-family-text);
  font-size: 14px;
  border: none;
  border-radius: var(--rounded-sm);
  padding: 8px 15px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.1s ease;
  text-decoration: none;
}
.button-dark-utility:active {
  transform: scale(0.95);
}

.button-pearl-capsule {
  background-color: var(--color-surface-pearl);
  color: var(--color-ink-muted-80);
  border: 3px solid var(--color-divider-soft);
  font-family: var(--font-family-text);
  font-size: 14px;
  border-radius: var(--rounded-md);
  padding: 8px 14px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.1s ease;
  text-decoration: none;
}
.button-pearl-capsule:active {
  transform: scale(0.95);
}

.button-store-hero {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  font-family: var(--font-family-text);
  font-size: 18px;
  font-weight: 300;
  border: none;
  border-radius: var(--rounded-pill);
  padding: 14px 28px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.1s ease;
  text-decoration: none;
}
.button-store-hero:active {
  transform: scale(0.95);
}

.button-icon-circular {
  background-color: var(--color-surface-chip-translucent);
  color: var(--color-ink);
  width: 44px;
  height: 44px;
  border: none;
  border-radius: var(--rounded-full);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.1s ease, background-color 0.2s ease;
}
.button-icon-circular:active {
  transform: scale(0.95);
  background-color: rgba(210, 210, 215, 0.8);
}

.text-link {
  color: var(--color-primary);
  font-family: var(--font-family-text);
  font-size: 17px;
  font-weight: 400;
  text-decoration: none;
}
.text-link:hover {
  text-decoration: underline;
}

.text-link-on-dark {
  color: var(--color-primary-on-dark);
  font-family: var(--font-family-text);
  font-size: 17px;
  font-weight: 400;
  text-decoration: none;
}
.text-link-on-dark:hover {
  text-decoration: underline;
}

/* PRODUCT TILES (THE SOUL OF THE REDESIGN) */
.product-tile {
  width: 100%;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--spacing-section) var(--spacing-lg);
  overflow: hidden;
}

.product-tile-light {
  background-color: var(--color-canvas);
  color: var(--color-ink);
}

.product-tile-parchment {
  background-color: var(--color-canvas-parchment);
  color: var(--color-ink);
}

.product-tile-dark {
  background-color: var(--color-surface-tile-1);
  color: var(--color-on-dark);
}
.product-tile-dark h1, .product-tile-dark h2, .product-tile-dark h3 {
  color: var(--color-on-dark);
}

.product-tile-dark-2 {
  background-color: var(--color-surface-tile-2);
  color: var(--color-on-dark);
}
.product-tile-dark-2 h1, .product-tile-dark-2 h2, .product-tile-dark-2 h3 {
  color: var(--color-on-dark);
}

.product-tile-dark-3 {
  background-color: var(--color-surface-tile-3);
  color: var(--color-on-dark);
}
.product-tile-dark-3 h1, .product-tile-dark-3 h2, .product-tile-dark-3 h3 {
  color: var(--color-on-dark);
}

.product-tile-content {
  max-width: 800px;
  margin: 0 auto;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.product-tile-headline {
  margin-bottom: var(--spacing-xxs);
}

.product-tile-tagline {
  color: var(--color-ink-muted-48);
  font-size: 21px;
  font-weight: 400;
  margin-bottom: var(--spacing-sm);
  max-width: 600px;
}
.product-tile-dark .product-tile-tagline,
.product-tile-dark-2 .product-tile-tagline,
.product-tile-dark-3 .product-tile-tagline {
  color: var(--color-body-muted);
}

.product-tile-ctas {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xxl);
}

.product-tile-image-container {
  width: 100%;
  max-width: 840px;
  margin-top: var(--spacing-md);
  display: flex;
  justify-content: center;
  position: relative;
}

/* THE ONE SIGNATURE DROP-SHADOW */
.product-shadow {
  filter: drop-shadow(rgba(0, 0, 0, 0.22) 3px 5px 30px);
  -webkit-filter: drop-shadow(rgba(0, 0, 0, 0.22) 3px 5px 30px);
}

.product-tile-image {
  width: 100%;
  height: auto;
  max-height: 480px;
  object-fit: contain;
}

/* CARDS */
.store-utility-card {
  background-color: var(--color-canvas);
  color: var(--color-ink);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-lg);
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: border-color 0.3s ease;
}
.store-utility-card:hover {
  border-color: var(--color-ink-muted-48);
}

.store-utility-card-img-wrap {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: var(--rounded-sm);
  overflow: hidden;
  margin-bottom: var(--spacing-md);
  background-color: var(--color-canvas-parchment);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
}

.store-utility-card-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.store-utility-card-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.store-utility-card-cta {
  margin-top: var(--spacing-lg);
}

/* CONFIGURATOR OPTION CHIP */
.configurator-option-chip {
  background-color: var(--color-canvas);
  color: var(--color-ink);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-pill);
  padding: 12px 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: border-color 0.2s ease;
}
.configurator-option-chip:hover {
  border-color: var(--color-ink-muted-48);
}
.configurator-option-chip-selected {
  border: 2px solid var(--color-primary-focus) !important;
  padding: 11px 15px; /* Adjust padding for border width offset */
}

/* SEARCH INPUT */
.search-input-container {
  position: relative;
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
}

.search-input {
  width: 100%;
  background-color: var(--color-canvas);
  color: var(--color-ink);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: var(--rounded-pill);
  padding: 12px 20px 12px 44px;
  height: 44px;
  font-family: var(--font-family-text);
  font-size: 17px;
  outline: none;
  transition: border-color 0.2s ease;
}
.search-input:focus {
  border-color: var(--color-primary);
}

.search-input-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-ink-muted-48);
  pointer-events: none;
}

/* FLOATING STICKY BAR */
.floating-sticky-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: rgba(245, 245, 247, 0.8);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  color: var(--color-ink);
  height: 64px;
  padding: 12px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--color-divider-soft);
  z-index: 98;
}

/* FOOTER (THE HIGH IA VIEWPORT) */
.footer {
  background-color: var(--color-canvas-parchment);
  color: var(--color-ink-muted-80);
  padding: 64px var(--spacing-lg);
  border-top: 1px solid var(--color-divider-soft);
}

.footer-container {
  max-width: 980px;
  margin: 0 auto;
}

.footer-directory {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
  padding-bottom: var(--spacing-xxl);
}
@media (max-width: 735px) {
  .footer-directory {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
}

.footer-col-title {
  font-family: var(--font-family-text);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.29;
  letter-spacing: -0.224px;
  color: var(--color-ink);
  margin-bottom: var(--spacing-sm);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.footer-link {
  color: var(--color-ink-muted-80);
  font-family: var(--font-family-text);
  font-size: 14px;
  line-height: 1.6;
  letter-spacing: -0.12px;
  text-decoration: none;
  transition: color 0.2s ease;
}
.footer-link:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.footer-legal {
  border-top: 1px solid var(--color-hairline);
  padding-top: var(--spacing-lg);
  margin-top: var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  color: var(--color-ink-muted-48);
  font-size: 12px;
}
@media (max-width: 640px) {
  .footer-legal {
    flex-direction: column;
  }
}

.footer-legal-links {
  display: flex;
  gap: var(--spacing-md);
}

/* RESPONSIVE GRID HELPERS */
.grid-responsive {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--spacing-lg);
}
@media (max-width: 1440px) {
  .grid-responsive {
    grid-template-columns: repeat(4, 1fr);
  }
}
@media (max-width: 1068px) {
  .grid-responsive {
    grid-template-columns: repeat(3, 1fr);
  }
}
@media (max-width: 833px) {
  .grid-responsive {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 640px) {
  .grid-responsive {
    grid-template-columns: 1fr;
  }
}

.grid-3-col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}
@media (max-width: 833px) {
  .grid-3-col {
    grid-template-columns: 1fr;
  }
}

/* FAQ STACKS */
.faq-stack {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--color-hairline);
  margin-top: var(--spacing-xl);
}

.faq-item {
  border-bottom: 1px solid var(--color-hairline);
  padding: var(--spacing-lg) 0;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}

.faq-answer {
  margin-top: var(--spacing-sm);
  color: var(--color-ink-muted-80);
  display: none;
}
.faq-item.active .faq-answer {
  display: block;
}

/* INTERACTIVE ESTIMATOR */
.calc-card {
  background-color: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-lg);
  padding: var(--spacing-xxl);
  box-shadow: none;
}
@media (max-width: 640px) {
  .calc-card {
    padding: var(--spacing-lg);
  }
}

.calc-range {
  width: 100%;
  height: 6px;
  background: var(--color-canvas-parchment);
  border-radius: var(--rounded-pill);
  outline: none;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.calc-select {
  width: 100%;
  padding: 12px;
  background-color: var(--color-canvas-parchment);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-sm);
  color: var(--color-ink);
  outline: none;
  font-family: var(--font-family-text);
  font-size: 14px;
}
.calc-select:focus {
  border-color: var(--color-primary);
}

.calc-results {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xxl);
  padding-top: var(--spacing-xxl);
  border-top: 1px solid var(--color-divider-soft);
}
@media (max-width: 640px) {
  .calc-results {
    grid-template-columns: 1fr;
  }
}

.calc-res-box {
  padding: var(--spacing-lg);
  border-radius: var(--rounded-sm);
  background-color: var(--color-canvas-parchment);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.calc-res-box-highlight {
  background-color: var(--color-canvas);
  border: 2px solid var(--color-primary);
  position: relative;
}

.calc-tag {
  position: absolute;
  top: 0;
  right: 0;
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  font-size: 10px;
  font-weight: 600;
  padding: var(--spacing-xxs) var(--spacing-sm);
  border-bottom-left-radius: var(--rounded-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}