/**
 * TRUE APPLE DESIGN SYSTEM
 * Left-aligned, justified text, bold typography
 * Exactly like Apple.com - Steve Jobs & Jony Ive approved
 */

/* ===== RESET & BASE ===== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Monochromatic - Black to Grey */
  --color-black: #000000;
  --color-gray-900: #1d1d1f;
  --color-gray-800: #2c2c2e;
  --color-gray-700: #3a3a3c;
  --color-gray-600: #48484a;
  --color-gray-500: #636366;
  --color-gray-400: #8e8e93;
  --color-gray-300: #c7c7cc;
  --color-gray-200: #d1d1d6;
  --color-gray-100: #f5f5f7;
  --color-gray-50: #fafafa;
  --color-white: #ffffff;

  /* Single Accent - Apple Blue */
  --color-accent: #0071e3;
  --color-accent-hover: #0077ed;

  /* Semantic Colors */
  --color-bg: var(--color-white);
  --color-bg-secondary: var(--color-gray-100);
  --color-text-primary: var(--color-black);
  --color-text-secondary: var(--color-gray-600);
  --color-text-tertiary: var(--color-gray-400);
  --color-border: var(--color-gray-200);

  /* Typography - Apple System Fonts */
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Spacing - Generous like Apple */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 3.5rem;
  --space-2xl: 5rem;
  --space-3xl: 7rem;
  --space-4xl: 10rem;

  /* Layout */
  --container-max: 980px;
  --container-wide: 1200px;
  --container-padding: max(22px, env(safe-area-inset-right));

  /* Transitions */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.6, 1);

  /* Shadows - Minimal */
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);

  /* Border Radius */
  --radius: 18px;
  --radius-sm: 12px;
}

/* ===== GLOBAL STYLES ===== */
html {
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-sans);
  font-weight: var(--font-weight-regular);
  line-height: 1.47059;
  letter-spacing: -0.022em;
  color: var(--color-text-primary);
  background: var(--color-bg);
}

/* ===== TYPOGRAPHY - BOLD & CENTER ALIGNED ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-semibold);
  line-height: 1.0834933333;
  letter-spacing: -0.015em;
  color: var(--color-black);
  margin: 0 0 var(--space-sm) 0;
  text-align: center;
}

h1 {
  font-size: clamp(48px, 5.5vw, 80px);
  font-weight: var(--font-weight-semibold);
  line-height: 1.05;
  letter-spacing: -0.015em;
}

h2 {
  font-size: clamp(32px, 4vw, 56px);
  font-weight: var(--font-weight-semibold);
  line-height: 1.0714285714;
  letter-spacing: -0.005em;
  margin-bottom: var(--space-md);
}

h3 {
  font-size: clamp(24px, 3vw, 40px);
  font-weight: var(--font-weight-semibold);
  line-height: 1.1;
  letter-spacing: 0;
}

h4 {
  font-size: 28px;
  font-weight: var(--font-weight-semibold);
  line-height: 1.14286;
  letter-spacing: 0.007em;
}

p {
  font-size: 17px;
  line-height: 1.47059;
  font-weight: var(--font-weight-regular);
  letter-spacing: -0.022em;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
  text-align: left;
  text-align: justify;
  text-justify: inter-word;
}

.lead {
  font-size: 21px;
  line-height: 1.381;
  font-weight: var(--font-weight-regular);
  letter-spacing: 0.011em;
  color: var(--color-text-secondary);
  text-align: left;
  text-align: justify;
  text-justify: inter-word;
}

/* ===== LAYOUT & CONTAINERS - LEFT ALIGNED ===== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.container-narrow {
  max-width: 692px;
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.container-wide {
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

section {
  padding: var(--space-3xl) 0;
}

@media (max-width: 768px) {
  section {
    padding: var(--space-2xl) 0;
  }
}

/* ===== HERO SECTION - CENTER ALIGNED ===== */
.hero-section {
  padding: var(--space-4xl) 0 var(--space-3xl) 0;
  text-align: center;
}

.hero-content {
  max-width: 692px;
  margin: 0 auto;
}

.hero-eyebrow {
  font-size: 17px;
  font-weight: var(--font-weight-semibold);
  line-height: 1.23536;
  letter-spacing: -0.022em;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-xs);
  text-align: center;
}

.hero-title {
  margin-bottom: var(--space-md);
  text-align: center;
}

.hero-subtitle {
  font-size: 21px;
  line-height: 1.381;
  font-weight: var(--font-weight-regular);
  letter-spacing: 0.011em;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
  text-align: justify;
  text-align-last: center;
  text-justify: inter-word;
}

.hero-buttons {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  justify-content: center;
}

@media (max-width: 768px) {
  .hero-section {
    padding: var(--space-2xl) 0;
  }
}

/* ===== BUTTONS - APPLE STYLE ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  padding: 12px 22px;
  font-size: 17px;
  line-height: 1.17648;
  font-weight: var(--font-weight-regular);
  letter-spacing: -0.022em;
  text-decoration: none;
  border-radius: 980px;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
}

.btn-secondary {
  background: transparent;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
}

.btn-secondary:hover {
  background: var(--color-accent);
  color: var(--color-white);
}

/* ===== CARDS - LEFT ALIGNED, SYMMETRICAL HEIGHT ===== */
.card,
.feature-card,
.expertise-area,
.update-item {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius);
  padding: var(--space-lg);
  transition: var(--transition);
  text-align: left;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.card:hover,
.feature-card:hover,
.expertise-area:hover {
  border-color: var(--color-gray-300);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.card h3,
.card h4,
.feature-card h3,
.expertise-area h3 {
  color: var(--color-black);
  margin-bottom: var(--space-sm);
  text-align: center;
}

.card p,
.feature-card p,
.expertise-area p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
  text-align: center;
  flex-grow: 1;
}

.card-link,
.feature-link {
  font-size: 17px;
  font-weight: var(--font-weight-regular);
  color: var(--color-accent);
  text-decoration: none;
  transition: var(--transition);
  text-align: center;
  margin-top: auto;
  display: block;
}

.card-link:hover,
.feature-link:hover {
  text-decoration: underline;
}

/* ===== GRID LAYOUTS - PERFECTLY SYMMETRICAL ===== */
.grid,
.feature-grid,
.expertise-grid,
.update-timeline {
  display: grid;
  gap: var(--space-lg);
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

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

/* Ensure equal height cards in grids */
.grid > *,
.feature-grid > *,
.expertise-grid > *,
.update-timeline > * {
  display: flex;
  flex-direction: column;
}

@media (max-width: 1024px) {
  .grid-3,
  .feature-grid,
  .expertise-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .grid,
  .grid-2,
  .grid-3,
  .feature-grid,
  .expertise-grid,
  .update-timeline {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
}

/* ===== ICON BADGES - SYMMETRICAL ===== */
.icon-badge,
.expertise-icon-visual {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  flex-shrink: 0;
}

.icon-badge svg,
.expertise-icon-visual svg {
  width: 48px;
  height: 48px;
  color: var(--color-accent);
}

.icon-svg {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

/* ===== SECTIONS - CENTER ALIGNED ===== */
.section-header {
  max-width: 692px;
  margin: 0 auto var(--space-2xl) auto;
  text-align: center;
}

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

.section-description {
  font-size: 21px;
  line-height: 1.381;
  letter-spacing: 0.011em;
  color: var(--color-text-secondary);
  text-align: center;
}

/* Featured Work Section */
.featured-section {
  padding: var(--space-3xl) 0;
}

.featured-section h2 {
  margin-bottom: var(--space-xl);
  text-align: left;
}

/* Expertise Section */
.expertise-section {
  padding: var(--space-3xl) 0;
}

.expertise-section h2 {
  margin-bottom: var(--space-xl);
  text-align: left;
}

/* Recent Section */
.recent-section {
  padding: var(--space-3xl) 0;
}

.recent-section h2 {
  margin-bottom: var(--space-md);
  text-align: left;
}

.update-timeline {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.update-date {
  font-size: 14px;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-xs);
  text-align: left;
}

/* Contact Preview */
.contact-preview {
  padding: var(--space-3xl);
  background: var(--color-gray-50);
  border-radius: var(--radius);
  text-align: left;
}

.contact-preview h2 {
  margin-bottom: var(--space-sm);
  text-align: left;
}

.contact-preview p {
  margin-bottom: var(--space-lg);
  text-align: left;
}

/* ===== NAVIGATION - APPLE STYLE ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 9999;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.wrapper {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
}

.site-title {
  font-size: 21px;
  font-weight: var(--font-weight-semibold);
  color: var(--color-black);
  text-decoration: none;
  letter-spacing: -0.021em;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.trigger {
  display: flex;
  gap: var(--space-lg);
  justify-content: center;
}

.page-link {
  font-size: 12px;
  font-weight: var(--font-weight-regular);
  color: var(--color-text-primary);
  text-decoration: none;
  transition: var(--transition);
  opacity: 0.8;
}

.page-link:hover,
.page-link.active {
  opacity: 1;
}

.nav-trigger {
  display: none;
}

@media (max-width: 768px) {
  .trigger {
    gap: var(--space-md);
  }

  .page-link {
    font-size: 14px;
  }
}

/* ===== FOOTER - APPLE STYLE, PERFECTLY ALIGNED ===== */
.site-footer {
  background: var(--color-gray-100);
  color: var(--color-text-secondary);
  padding: var(--space-xl) 0;
  margin-top: var(--space-4xl);
  font-size: 12px;
  line-height: 1.33337;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-lg);
  align-items: start;
  justify-content: space-between;
}

@media (max-width: 768px) {
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
}

.footer-section {
  display: flex;
  flex-direction: column;
}

.footer-section h4 {
  color: var(--color-black);
  font-size: 12px;
  font-weight: var(--font-weight-semibold);
  margin: 0 0 12px 0;
  padding: 0;
  text-align: left;
  line-height: 1.33337;
}

.footer-section p,
.footer-section a {
  color: var(--color-text-secondary);
  font-size: 12px;
  line-height: 1.66667;
  text-decoration: none;
  transition: var(--transition);
  text-align: left;
}

.footer-section p {
  margin: 0 0 8px 0;
  padding: 0;
}

.footer-section a:hover {
  color: var(--color-text-primary);
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  text-align: left;
}

.footer-links li {
  margin: 0 0 8px 0;
  padding: 0;
  line-height: 1.66667;
}

.footer-bottom {
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-gray-200);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
}

.footer-copyright {
  text-align: left;
}

.footer-social {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.footer-text-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
}

.footer-text-link:hover {
  color: var(--color-primary);
}

.footer-separator {
  color: var(--color-text-secondary);
  font-size: 12px;
  opacity: 0.5;
}

@media (max-width: 768px) {
  .footer-content {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: left;
  }
}

/* ===== LINKS ===== */
a {
  color: var(--color-accent);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  text-decoration: underline;
}

/* ===== UTILITIES ===== */
.text-left {
  text-align: left !important;
}

.text-muted {
  color: var(--color-text-secondary);
}

.mt-xl {
  margin-top: var(--space-xl);
}

.mb-xl {
  margin-bottom: var(--space-xl);
}

/* ===== FLOATING ACTION BUTTONS ===== */
.contact-fab,
#back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 999;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  color: #1d1d1f;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.6, 1);
  cursor: pointer;
}

.contact-fab {
  bottom: 6rem;
}

.contact-fab:hover,
#back-to-top:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  background: #0071e3;
  color: #ffffff;
  border-color: #0071e3;
}

#back-to-top {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

#back-to-top.visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.fab-icon {
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.6, 1);
}

.contact-fab:hover .fab-icon,
#back-to-top:hover .fab-icon {
  transform: scale(1.1);
}

/* Mobile adjustments */
@media (max-width: 768px) {
  .contact-fab,
  #back-to-top {
    width: 48px;
    height: 48px;
    bottom: 1rem;
    right: 1rem;
  }

  .contact-fab {
    bottom: 5rem;
  }

  .fab-icon {
    width: 24px;
    height: 24px;
  }
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

/* ===== RESPONSIVE TYPOGRAPHY ===== */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }

  h1 {
    font-size: 40px;
  }

  h2 {
    font-size: 32px;
  }

  h3 {
    font-size: 24px;
  }

  p {
    font-size: 16px;
  }

  .lead {
    font-size: 19px;
  }
}