/**
 * Portfolio Website - Main Stylesheet
 * Core styles, typography, and layout fundamentals
 * Author: Münevver Aslan */

/* Legacy variable mapping for backward compatibility */
:root {
  /* Map old variables to new design tokens */
  --color-background: var(--color-background-primary);
  --color-surface: var(--color-background-tertiary);
  --color-primary: var(--color-accent-primary);
  --color-secondary: var(--color-accent-secondary);
  --color-accent: var(--color-off-white);
  --color-gray-light: var(--color-light-gray);
  --color-gray-medium: var(--color-medium-gray);
  --color-white: var(--color-pure-white);
  --color-black: var(--color-pure-black);
  --color-border: hsl(var(--color-medium-gray-hsl), 0.3);

  /* Legacy color names for backward compatibility */
  --pure-black: var(--color-pure-black);
  --deep-black: var(--color-deep-black);
  --dark-gray: var(--color-dark-gray);
  --medium-gray: var(--color-medium-gray);
  --light-gray: var(--color-light-gray);
  --off-white: var(--color-off-white);
  --pure-white: var(--color-pure-white);
  --amber-accent: var(--color-amber-accent);
  --cyan-accent: var(--color-cyan-accent);

  /* Legacy HSL values */
  --pure-black-hsl: var(--color-pure-black-hsl);
  --dark-gray-hsl: var(--color-dark-gray-hsl);
  --medium-gray-hsl: var(--color-medium-gray-hsl);
  --light-gray-hsl: var(--color-light-gray-hsl);
  --amber-accent-hsl: var(--color-amber-accent-hsl);
  --cyan-accent-hsl: var(--color-cyan-accent-hsl);

  /* Solid Backgrounds (No Gradients) */
  --background-subtle: var(--color-background-tertiary);
  --background-elevated: var(--color-medium-gray);

  /* Button Gradient - Orange to Green (Matte Finish) */
  --gradient-orange-green: var(--gradient-primary);
  --gradient-orange-green-hover: var(--gradient-primary-hover);

  /* Border Gradients */
  --border-gradient: var(--gradient-border);
  --border-gradient-hover: var(--gradient-border-hover);
}

/* Font Face Declarations - Resonate Font Family */

/* CSS Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 0;
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  height: 100%;
}

body {
  font-family: var(--font-family-primary);
  line-height: 1.6;
  color: var(--color-text-primary);
  background: var(--color-background);
  overflow-x: hidden;
  margin: 0;
  padding: 0;
  font-weight: 300;
  /* Light font weight */
  transition: all 0.3s ease;
}

body:hover {
  background: var(--color-background-secondary);
}

body:hover .category-block,
body:hover .project-block,
body:hover .project-item,
body:hover .skill-category,
body:hover .carousel-item {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
  border: 1px solid rgba(217, 221, 220, 0.9);
}

body:hover .category-block:hover,
body:hover .project-block:hover,
body:hover .project-item:hover,
body:hover .skill-category:hover,
body:hover .carousel-item:hover {
  transform: translateY(-7px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
  border: 2px solid rgba(217, 221, 220, 1);
}

/* Container and Layout */
.container {
  max-width: 75rem;
  /* 1200px */
  margin: 0 auto;
  padding: 0 24px;
  box-sizing: border-box;
}

/* Override container padding for full-screen sections */
.hero .container,
.about .container,
.contact .container {
  padding: 0 24px;
  max-height: 100vh;
  max-height: 100dvh;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700 !important;
  /* Black font weight */
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

body,
p,
span,
a,
li,
div {
  font-weight: 300;
  /* Light font weight */
}

.section-title,
.hero-content h1,
.whats-new h2,
.carousel-section h2,
.portfolio-categories-section h2,
.about h2,
.contact h2,
.project-info h3,
.category-content h3,
.skill-category h3 {
  font-weight: 700 !important;
  /* Black font weight */
}

/* Links */
a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease;
}

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

/* Hero Section with Background Image */
.hero {
  height: 100vh;
  height: 100dvh;
  /* Dynamic viewport height for better mobile support */
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  background-color: var(--color-background);
  /* Use solid background color */
  box-sizing: border-box;
}

.hero .container {
  padding: 0 24px;
  max-height: 100vh;
  max-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* The ::before pseudo-element for the overlay is no longer needed. */

.hero-content {
  position: relative;
  z-index: var(--z-docked);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.hero-content h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
}

.hero-content .role {
  font-size: clamp(1.1rem, 2.5vw, 1.25rem);
  color: var(--color-text-primary);
  margin-bottom: 1.5rem;
  font-weight: 300;
}

.hero-content .headline {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  max-width: 37.5rem;
  /* 600px */
  margin: 0 auto 2rem;
  color: var(--color-text-secondary);
  font-weight: 300;
}

.section-intro {
  font-weight: 300;
}

/* What's New Section */
.whats-new {
  padding: 6rem 0;
  background-color: var(--color-background-secondary);
  text-align: center;
}

.whats-new .container {
  max-width: 800px;
  margin: 0 auto;
}

.whats-new h2 {
  font-size: clamp(2rem, 5vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--color-text-primary);
}

.whats-new p {
  font-size: clamp(1.1rem, 2.5vw, 1.25rem);
  line-height: 1.7;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
  font-weight: 300;
}

/* Carousel Section */
.carousel-section {
  padding: var(--space-20) 0;
  /* 80px */
  background: var(--color-background);
}

.carousel-section h2 {
  text-align: center;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 3rem;
  color: var(--color-text-primary);
}

.carousel {
  display: flex;
  gap: 2rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 0 24px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.carousel::-webkit-scrollbar {
  display: none;
}

.carousel-item {
  min-width: 18.75rem;
  /* 300px */
  background: var(--color-surface);
  padding: 2rem;
  scroll-snap-align: start;
  text-align: center;
  border-radius: var(--border-radius-lg);
  /* 8px */
  border: 1px solid rgba(217, 221, 220, 0.7);
  transition: border-width 0.3s ease, border-color 0.3s ease;
}

.carousel-item:hover {
  border: 2px solid rgba(217, 221, 220, 0.7);
}

.carousel-item:focus {
  outline: 2px solid rgba(217, 221, 220, 0.7);
  outline-offset: var(--border-width-thick);
  border: 2px solid rgba(217, 221, 220, 0.7);
}

.carousel-item:focus-visible {
  outline: 2px solid rgba(217, 221, 220, 0.7);
  outline-offset: var(--border-width-thick);
}

.carousel-item h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--color-text-primary);
}

.carousel-item p {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  font-weight: 300;
}

/* Portfolio Categories Section */
.portfolio-categories-section {
  padding: 6rem 0;
  background-color: var(--color-background-primary);
}

.portfolio-categories-section h2 {
  text-align: center;
  font-size: clamp(2rem, 5vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 3rem;
  color: var(--color-text-primary);
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.category-block {
  background-color: var(--color-background-secondary);
  border-radius: 8px;
  overflow: hidden;
  text-decoration: none;
  color: var(--color-text-primary);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid #D9DDDC;
  transition: border-width 0.3s ease, border-color 0.3s ease;
}

.category-block:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
  border: 2px solid #D9DDDC;
}

.category-block:focus {
  outline: 2px solid #D9DDDC;
  outline-offset: var(--border-width-thick);
  border: 2px solid #D9DDDC;
}

.category-block:focus-visible {
  outline: 2px solid #D9DDDC;
  outline-offset: var(--border-width-thick);
}

.category-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.category-content {
  padding: 1.5rem;
}

.category-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.category-content p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  font-weight: 300;
}

/* Enhanced Horizontal Slider Layout for Portfolio Categories */
.categories-broken-layout {
  position: relative;
  width: 100vw;
  margin: 0;
  z-index: var(--z-docked);
  overflow: hidden;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  -ms-overflow-style: none;
  cursor: grab;
  user-select: none;
}

.categories-broken-layout::-webkit-scrollbar {
  display: none;
}

.categories-broken-layout:active {
  cursor: grabbing;
}

.categories-slider-container {
  display: flex;
  gap: 0;
  padding: 0;
  transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: transform;
  scroll-snap-align: start;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  /* Dynamic viewport height for better mobile support */
  opacity: 0;
  /* Initially hidden */
  transition: opacity 0.4s ease-in-out;
}

.categories-broken-layout.slider-initialized .categories-slider-container {
  opacity: 1;
  /* Fade in when initialized */
}

.categories-broken-layout .category-block {
  flex: 1;
  width: 33.333333vw;
  height: 100vh;
  height: 100dvh;
  /* Dynamic viewport height for better mobile support */
  transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border-radius: 0;
  overflow: hidden;
  position: relative;
  cursor: pointer;
  scroll-snap-align: start;
  transform-origin: center;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  filter: brightness(1) saturate(1);
  box-shadow: none;
}

.categories-broken-layout .category-block::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.8) 100%);
  transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  z-index: var(--z-base);
}

.categories-broken-layout .category-block:hover::before {
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.3) 0%, rgba(0, 0, 0, 0.6) 100%);
}



.categories-broken-layout .category-block .category-icon {
  display: none;
}

.categories-broken-layout .category-block h3 {
  color: white;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.categories-broken-layout .category-block p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.95rem;
  line-height: 1.4;
  max-width: none;
  margin: 0;
  font-weight: 300;
}

.categories-broken-layout .category-block:hover {
  transform: none;
  filter: brightness(1.15) saturate(1.1);
  box-shadow: none;
  z-index: var(--z-docked);
}

/* Enhanced content animations on hover */
.categories-broken-layout .category-block .category-content {
  position: relative;
  z-index: var(--z-docked);
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2.5rem;
  color: white;
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.categories-broken-layout .category-block:hover .category-content {
  transform: translateY(-2px);
}

/* Individual card backgrounds */
.category-primary {
  background-image: linear-gradient(135deg, #667eea 0%, #764ba2 100%), url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><rect width="20" height="20" x="10" y="10" fill="rgba(255,255,255,0.1)"/><rect width="15" height="15" x="35" y="25" fill="rgba(255,255,255,0.05)"/><rect width="25" height="25" x="60" y="15" fill="rgba(255,255,255,0.08)"/></svg>');
}

.category-offset {
  background-image: linear-gradient(135deg, #f093fb 0%, #f5576c 100%), url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="25" cy="25" r="8" fill="rgba(255,255,255,0.1)"/><circle cx="55" cy="45" r="12" fill="rgba(255,255,255,0.05)"/><circle cx="75" cy="25" r="6" fill="rgba(255,255,255,0.08)"/></svg>');
}

.category-compact {
  background-image: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%), url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><polygon points="20,10 40,30 20,50" fill="rgba(255,255,255,0.1)"/><polygon points="60,20 80,15 75,40" fill="rgba(255,255,255,0.05)"/><polygon points="30,70 50,60 45,85" fill="rgba(255,255,255,0.08)"/></svg>');
}

/* Slider navigation indicators - removed */



/* About Section */
.about {
  padding: 6rem 0;
  background-color: var(--color-background-primary);
  text-align: center;
}

.about .container {
  max-width: 800px;
  margin: 0 auto;
}

.about h2 {
  font-size: clamp(2rem, 5vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--color-text-primary);
}

.about p {
  font-size: clamp(1.1rem, 2.5vw, 1.25rem);
  line-height: 1.7;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
  font-weight: 300;
}

.about .skills-grid {
  margin-top: 3rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
}

.skill-category {
  background-color: var(--color-background-tertiary);
  padding: 2rem;
  border-radius: 8px;
  flex: 1 1 300px;
  max-width: 350px;
  border: 1px solid rgba(217, 221, 220, 0.7);
  transition: border-width 0.3s ease, border-color 0.3s ease;
}

.skill-category:hover {
  border: 2px solid rgba(217, 221, 220, 0.7);
}

.skill-category:focus {
  outline: 2px solid rgba(217, 221, 220, 0.7);
  outline-offset: var(--border-width-thick);
  border: 2px solid rgba(217, 221, 220, 0.7);
}

.skill-category:focus-visible {
  outline: 2px solid rgba(217, 221, 220, 0.7);
  outline-offset: var(--border-width-thick);
}

.skill-category h3 {
  font-size: clamp(1rem, 2vw, 1.1rem);
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--color-text-primary);
}

.skill-category ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.skill-category li {
  color: var(--color-text-secondary);
  font-size: clamp(0.9rem, 1.8vw, 0.95rem);
  margin-bottom: 0.2rem;
  font-weight: 300;
}

/* Portfolio Section */
.portfolio-section {
  padding: 6rem 0;
  background-color: var(--color-background-primary);
}

.section-title {
  text-align: center;
  font-size: clamp(2rem, 5vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 3rem;
  color: var(--color-text-primary);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 3.3rem;
  /* Increased gutter spacing by 10% */
  padding: 2rem 5vw;
  /* Updated 5% viewport margin */
}

.project-item {
  background-color: var(--color-background-secondary);
  border-radius: 8px;
  overflow: hidden;
  text-decoration: none;
  color: var(--color-text-primary);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid rgba(217, 221, 220, 0.7);
  transition: border-width 0.3s ease, border-color 0.3s ease;
}

.project-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
  border: 2px solid rgba(217, 221, 220, 0.7);
}

.project-item:focus {
  outline: 2px solid rgba(217, 221, 220, 0.7);
  outline-offset: var(--border-width-thick);
  border: 2px solid rgba(217, 221, 220, 0.7);
}

.project-item:focus-visible {
  outline: 2px solid rgba(217, 221, 220, 0.7);
  outline-offset: var(--border-width-thick);
}

.project-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.project-info {
  padding: 1.5rem;
}

.project-info h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.project-info p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  font-weight: 300;
}

/* Contact Section */
.contact {
  padding: 6rem 0;
  background-color: var(--color-background-secondary);
  text-align: center;
}

.contact .container {
  max-width: 800px;
  margin: 0 auto;
}

.contact h2 {
  font-size: clamp(2rem, 5vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 2rem;
  color: var(--color-text-primary);
}

.contact-info {
  margin-bottom: 2rem;
}

.email {
  font-size: clamp(1.2rem, 4vw, 1.5rem);
  font-weight: 300;
  color: var(--color-text-primary);
  margin-bottom: 2rem;
}

.email a {
  color: var(--color-accent-primary);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: border-color 0.3s ease;
}

.email a:hover {
  border-color: var(--color-accent-primary);
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
}

.social-links a {
  font-size: 1.5rem;
  color: var(--color-text-secondary);
  transition: color 0.3s ease;
}

.social-links a:hover {
  color: var(--color-accent-primary);
}

/* Footer Attribution - Hidden for perfect scroll alignment */
.site-footer {
  display: none;
}

.footer-content {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
}

.built-by {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin: 0;
}

.built-by a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: 700;
  border-bottom: 0.25px solid transparent;
  transition: all 0.3s ease;
  padding: 0.25rem 0.5rem;
  border-radius: var(--border-radius-sm);
  /* 4px */
}

.built-by a:hover {
  color: var(--color-text-primary);
  border-bottom-color: var(--color-text-primary);
  background: hsl(var(--pure-black-hsl), 0.1);
}

.copyright {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin: 0;
  opacity: 0.8;
}

/* Section spacing */
section {
  position: relative;
  box-sizing: border-box;
  overflow: hidden;
}

.projects-section .projects-grid {
  padding: 2rem 5vw;
  gap: 3.3rem;
}