/* Production-Ready Website Styles - styles.css */

/* CSS Variables */
:root {
  --font-size: 14px;
  --font-sans: 'Roboto', ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
  
  /* Colors */
  --color-black: #000000;
  --color-white: #ffffff;
  --color-blue-light: #dfedff;
  --color-blue-medium: #c9e1ff;
  --color-blue-dark: #d3e6ff;
  --color-link: #004daf;
  --color-link-hover: #003d8f;
  --color-gray-100: oklch(.967 .003 264.542);
  --color-gray-200: oklch(.928 .006 264.531);
  --color-gray-300: oklch(.872 .01 258.338);
  
  /* Spacing */
  --spacing: 0.25rem;
  --container-5xl: 64rem;
  
  /* Typography */
  --text-base: 1rem;
  --text-base-line-height: 1.5;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-xl-line-height: 1.4;
  --text-2xl: 1.5rem;
  --text-2xl-line-height: 1.33;
  --text-3xl: 1.875rem;
  --text-3xl-line-height: 1.2;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --leading-tight: 1.25;
  
  /* Transitions */
  --default-transition-duration: 0.15s;
  --default-transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset and base styles */
*, *::before, *::after {
  box-sizing: border-box;
  border: 0 solid;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  tab-size: 4;
  line-height: 1.5;
  font-family: var(--font-sans);
  font-size: var(--font-size);
  scroll-behavior: smooth;
}

body {
  line-height: inherit;
  font-family: var(--font-sans);
  background-color: var(--color-blue-light);
  color: var(--color-black);
  margin: 0;
  padding: 0;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-size: inherit;
  font-weight: inherit;
}

a {
  color: inherit;
  text-decoration: inherit;
}

img, svg, video, canvas, audio, iframe, embed, object {
  vertical-align: middle;
  display: block;
}

img, video {
  max-width: 100%;
  height: auto;
}

/* Skip link for accessibility */
.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--color-white);
  color: var(--color-black);
  padding: 8px 16px;
  text-decoration: none;
  border-radius: 4px;
  z-index: 1000;
  font-weight: var(--font-weight-semibold);
  transition: all var(--default-transition-duration) var(--default-transition-timing-function);
}

.skip-link:focus {
  top: 6px;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-5xl);
  margin-left: auto;
  margin-right: auto;
  padding-left: calc(var(--spacing) * 4);
  padding-right: calc(var(--spacing) * 4);
}

@media (min-width: 640px) {
  .container {
    padding-left: calc(var(--spacing) * 6);
    padding-right: calc(var(--spacing) * 6);
  }
}

@media (min-width: 1024px) {
  .container {
    padding-left: calc(var(--spacing) * 8);
    padding-right: calc(var(--spacing) * 8);
  }
}

/* Header */
.header {
  background-color: var(--color-blue-medium);
  padding: calc(var(--spacing) * 4) 0;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
}

.header-container {
  padding-left: calc(var(--spacing) * 4);
  padding-right: calc(var(--spacing) * 4);
}

.header-content {
  display: flex;
  align-items: center;
  gap: calc(var(--spacing) * 3);
  justify-content: flex-start;
}

.profile-img {
  border-radius: 50%;
  width: 50px;
  height: 50px;
  object-fit: cover;
  flex-shrink: 0;
}

.header-title {
  font-size: var(--text-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-black);
  line-height: var(--leading-tight);
}

.header-subtitle {
  font-weight: var(--font-weight-normal);
}

/* Main content */
.main-content {
  margin-top: 82px;
}

.main-container {
  padding-top: 56px;
  padding-right: 28px;
  padding-bottom: 0;
  padding-left: 28px;
  padding-top: calc(var(--spacing) * 8);
  padding-bottom: calc(var(--spacing) * 8);
}

@media (min-width: 640px) {
  .main-container {
    padding-top: calc(var(--spacing) * 12);
    padding-bottom: calc(var(--spacing) * 0);
  }
}

@media (min-width: 1024px) {
  .main-container {
    padding-top: calc(var(--spacing) * 16);
    padding-bottom: calc(var(--spacing) * 0);
  }
}

/* Introduction section */
.intro-section {
  padding-bottom: calc(var(--spacing) * 10);
  margin-bottom: calc(var(--spacing) * 8);
  border-bottom: 1px solid #B4CAE7;
}

.intro-heading {
  font-size: 32px;
  font-weight: var(--font-weight-medium);
  color: var(--color-black);
  margin-bottom: calc(var(--spacing) * 8);
  line-height: var(--leading-tight);
}

@media (min-width: 1024px) {
  .intro-heading {
    font-size: 36px;
  }
}

.intro-text {
  font-size: var(--text-xl);
  color: var(--color-black);
  margin-bottom: calc(var(--spacing) * 8);
  line-height: var(--leading-tight);
}

@media (min-width: 640px) {
  .intro-text {
    font-size: var(--text-2xl);
  }
}

/* LinkedIn CTA */
.linkedin-cta {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: calc(var(--spacing) * 2);
}

.linkedin-icon {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.linkedin-text {
  font-size: var(--text-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-black);
}

.linkedin-link {
  color: var(--color-black);
  text-decoration: underline;
  transition: color var(--default-transition-duration) var(--default-transition-timing-function);
}

.linkedin-link:hover {
  color: var(--color-link);
}

.linkedin-link:focus {
  outline: 2px solid var(--color-link);
  outline-offset: 2px;
}

/* Services section */
.services-section {
  margin-bottom: calc(var(--spacing) * 14);
}

.section-heading {
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-medium);
  color: var(--color-black);
  margin-bottom: calc(var(--spacing) * 6);
}

@media (min-width: 640px) {
  .section-heading {
    font-size: var(--text-3xl);
  }
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: calc(var(--spacing) * 6);
}

@media (max-width: 520px) {
  .services-grid {
    grid-template-columns: repeat(1, minmax(0, 1fr));
  }
}

@media (min-width: 768px) {
  .services-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.service-item {
  display: flex;
  flex-direction: column;
  gap: calc(var(--spacing) * 2);
}

.service-title {
  font-size: var(--text-xl);
  font-weight: var(--font-weight-medium);
  color: var(--color-black);
}

.service-description {
  font-size: var(--text-base);
  color: var(--color-black);
  line-height: var(--leading-tight);
}

/* Portfolio section */
.portfolio-section {
    margin-bottom: calc(var(--spacing) * 0);
}

@media (min-width: 768px) {
  .portfolio-section {
    max-width: var(--container-5xl);
    margin-left: auto;
    margin-right: auto;
    padding-left: calc(var(--spacing) * 4);
    padding-right: calc(var(--spacing) * 4);
    margin-bottom: calc(var(--spacing) * 12);
  }
}

@media (min-width: 1024px) {
  .portfolio-section {
    padding-left: calc(var(--spacing) * 8);
    padding-right: calc(var(--spacing) * 8);
    margin-bottom: calc(var(--spacing) * 12);
  }
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: calc(var(--spacing) * 0);
}

@media (min-width: 768px) {
  .portfolio-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: calc(var(--spacing) * 0);
  }
}

.portfolio-item {
  aspect-ratio: 1;
  overflow: hidden;
  background-color: var(--color-gray-100);
  position: relative;
}

.portfolio-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--default-transition-duration) var(--default-transition-timing-function);
}

.portfolio-item:hover img {
  transform: scale(1.05);
}

/* Create a masonry-like layout for portfolio items */
.portfolio-item-1 {
  grid-column: span 1;
  grid-row: span 1;
}

.portfolio-item-2 {
  grid-column: span 1;
  grid-row: span 1;
}

.portfolio-item-3 {
  grid-column: span 1;
  grid-row: span 1;
}

.portfolio-item-4 {
  grid-column: span 1;
  grid-row: span 1;
}

.portfolio-item-5 {
  grid-column: span 1;
  grid-row: span 1;
}

.portfolio-item-6 {
  grid-column: span 1;
  grid-row: span 1;
}

.portfolio-item-7 {
  grid-column: span 1;
  grid-row: span 1;
}

.portfolio-item-8 {
  grid-column: span 1;
  grid-row: span 1;
}

@media (min-width: 768px) {
  .portfolio-item-2 {
    grid-row: span 1;
  }
  
  .portfolio-item-5 {
    grid-column: span 1;
  }
}

/* Footer */
.footer {
  background-color: var(--color-blue-dark);
  padding: calc(var(--spacing) * 9) 0;
}

.footer-container {
  /* Use same container padding as other sections */
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: calc(var(--spacing) * 4);
}

@media (min-width: 640px) {
  .footer-content {
    flex-direction: row;
    align-items: center;
  }
}

.footer-logo {
  flex-shrink: 0;
  width: 63px;
  height: 85px;
}

.footer-logo svg {
  width: 100%;
  height: 100%;
}

.footer-text {
  display: flex;
  flex-direction: column;
  gap: calc(var(--spacing) * 1);
  font-size: var(--text-base);
  color: var(--color-black);
}

.footer-link {
  text-decoration: underline;
  transition: color var(--default-transition-duration) var(--default-transition-timing-function);
}

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

.footer-link:focus {
  outline: 2px solid var(--color-link);
  outline-offset: 2px;
}

/* Loading states and animations */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.loading {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* Focus management and accessibility */
*:focus {
  outline: 2px solid var(--color-link);
  outline-offset: 2px;
}

/* Remove focus outline for mouse users */
.js-focus-visible *:focus:not(.focus-visible) {
  outline: none;
}

/* Ensure images have proper fallbacks */
img[alt=""] {
  background-color: var(--color-gray-100);
}

/* Print styles */
@media print {
  .header {
    position: static;
  }
  
  .main-content {
    margin-top: 0;
  }
  
  .skip-link,
  .portfolio-section {
    display: none;
  }
  
  body {
    background-color: white;
  }
  
  a {
    color: var(--color-black);
    text-decoration: underline;
  }
  
  a[href^="http"]:after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --color-link: #0000EE;
    --color-link-hover: #551A8B;
  }
  
  .portfolio-item {
    border: 2px solid var(--color-black);
  }
}

/* Dark mode support (if needed in the future) */
@media (prefers-color-scheme: dark) {
  /* Currently maintaining light theme as per design */
  /* Add dark mode variables here if needed */
}