/* ===== CSS VARIABLES ===== */
:root {
  /* Colors */
  --primary-50: #eff6ff;
  --primary-100: #dbeafe;
  --primary-200: #bfdbfe;
  --primary-300: #93c5fd;
  --primary-400: #60a5fa;
  --primary-500: #3b82f6;
  --primary-600: #2563eb;
  --primary-700: #1d4ed8;
  --primary-800: #1e40af;
  --primary-900: #1e3a8a;

  --secondary-50: #f0f9ff;
  --secondary-100: #e0f2fe;
  --secondary-200: #bae6fd;
  --secondary-300: #7dd3fc;
  --secondary-400: #38bdf8;
  --secondary-500: #0ea5e9;
  --secondary-600: #0284c7;
  --secondary-700: #0369a1;
  --secondary-800: #075985;
  --secondary-900: #0c4a6e;

  --accent-50: #fdf4ff;
  --accent-100: #fae8ff;
  --accent-200: #f5d0fe;
  --accent-300: #f0abfc;
  --accent-400: #e879f9;
  --accent-500: #d946ef;
  --accent-600: #c026d3;
  --accent-700: #a21caf;
  --accent-800: #86198f;
  --accent-900: #701a75;

  --success-500: #08865c;
  --success-bg: #10b98145;
  --warning-500: #f59e0b;
  --error-500: #ef4444;
  --error-bg: #ef444445;

  /* Neutral Colors */
  --white: #ffffff;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --black: #000000;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 2.5rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 5rem;
  --space-5xl: 6rem;

  /* Typography */
  --font-family-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;
  --font-size-7xl: 4.5rem;

  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;

  --line-height-tight: 1.25;
  --line-height-snug: 1.375;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;
  --line-height-loose: 2;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;

  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal: 1040;
  --z-popover: 1050;
  --z-tooltip: 1060;
  --z-toast: 1070;

  /* Container */
  --container-max-width: 1200px;
  --container-padding: 1rem;
}

/* Dark mode variables */
[data-theme="dark"] {
  --background: var(--gray-900);
  --surface: var(--gray-800);
  --surface-elevated: var(--gray-700);
  --text-primary: var(--white);
  --text-secondary: var(--gray-300);
  --text-muted: var(--gray-400);
  --border: var(--gray-700);
  --border-light: var(--gray-600);
}

/* Light mode variables */
[data-theme="light"],
:root {
  --background: var(--white);
  --surface: var(--gray-50);
  --surface-elevated: var(--white);
  --text-primary: var(--gray-900);
  --text-secondary: var(--gray-700);
  --text-muted: var(--gray-500);
  --border: var(--gray-200);
  --border-light: var(--gray-100);
}

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

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font-family-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--text-primary);
  background-color: var(--background);
  transition: background-color var(--transition-normal), color var(--transition-normal);
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
  color: inherit;
}

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

ul {
  list-style: none;
}

input,
textarea {
  font-family: inherit;
  font-size: inherit;
}

/* ===== UTILITY CLASSES ===== */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: var(--space-5xl) 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-4xl);
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.section-divider {
  width: 4rem;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-500), var(--accent-500));
  border-radius: var(--radius-full);
  margin: 0 auto;
}

.section-description {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  max-width: 32rem;
  margin: var(--space-md) auto 0;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-lg);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-full);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  text-decoration: none;
  cursor: pointer;
  border: none;
  font-size: var(--font-size-base);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-600), var(--accent-600));
  color: var(--white);
  box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.btn-submit {
  width: 100%;
  justify-content: center;
  position: relative;
}

.btn-submit .btn-text {
  transition: opacity var(--transition-fast);
}

.btn-submit .btn-loader {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn-submit.loading .btn-text {
  opacity: 0;
}

.btn-submit.loading .btn-loader {
  opacity: 1;
}

.loader {
  width: 20px;
  height: 20px;
  border: 2px solid transparent;
  border-top: 2px solid var(--white);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

/* ===== LOADING SCREEN ===== */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: linear-gradient(135deg, var(--primary-900), var(--accent-900), var(--primary-800));
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.loading-screen.hidden {
  opacity: 0;
  visibility: hidden;
}

.loading-bg-animation {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.bubble {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  mix-blend-mode: multiply;
  animation: float 6s ease-in-out infinite;
}

.bubble-1 {
  width: 24rem;
  height: 24rem;
  background: var(--primary-500);
  top: 25%;
  left: 25%;
  animation-delay: 0s;
}

.bubble-2 {
  width: 24rem;
  height: 24rem;
  background: var(--accent-500);
  top: 33.33%;
  right: 25%;
  animation-delay: 2s;
}

.bubble-3 {
  width: 24rem;
  height: 24rem;
  background: var(--secondary-400);
  bottom: 25%;
  left: 33.33%;
  animation-delay: 4s;
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0px) rotate(0deg);
  }

  33% {
    transform: translateY(-30px) rotate(120deg);
  }

  66% {
    transform: translateY(30px) rotate(240deg);
  }
}

.loading-content {
  text-align: center;
  z-index: 10;
  position: relative;
}

.loading-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 5rem;
  height: 5rem;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-2xl);
  margin-bottom: var(--space-lg);
  animation: bounce 2s ease-in-out infinite;
}

.loading-logo svg {
  width: 3rem;
  height: 3rem;
  color: var(--white);
  animation: pulse 2s ease-in-out infinite;
}

.loading-title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--white);
  margin-bottom: var(--space-xs);
}

.loading-subtitle {
  font-size: var(--font-size-xl);
  color: var(--primary-200);
  margin-bottom: var(--space-2xl);
}

.progress-container {
  width: 20rem;
  margin: 0 auto;
}

.progress-bar {
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
  --progress: 0%;
}

.progress-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--white), var(--primary-200));
  border-radius: var(--radius-full);
  width: var(--progress);
  transition: width 100ms ease-out;
}

.progress-text {
  display: block;
  margin-top: var(--space-sm);
  color: var(--white);
  font-weight: var(--font-weight-medium);
}

@keyframes bounce {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-10px);
  }
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.8;
  }
}

/* ===== HEADER ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  transition: all var(--transition-normal);
}

[data-theme="dark"] .header {
  background: rgba(17, 24, 39, 0.8);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  cursor: pointer;
  transition: transform var(--transition-fast);
}

.nav-brand:hover {
  transform: scale(1.05);
}

.brand-logo {
  width: 2.5rem;
  height: 2.5rem;
  background: linear-gradient(135deg, var(--primary-500), var(--accent-600));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-logo svg {
  width: 1.5rem;
  height: 1.5rem;
  color: var(--white);
}

.brand-text {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  background: linear-gradient(135deg, var(--primary-600), var(--accent-600));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-link {
  position: relative;
  padding: var(--space-xs) var(--space-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
  transition: color var(--transition-normal);
}

[data-theme="dark"] .nav-link {
  color: var(--white);
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary-600);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -1rem;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-500), var(--accent-500));
  border-radius: var(--radius-full);
}

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

.theme-toggle {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-lg);
  background: var(--surface);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.theme-toggle:hover {
  background: var(--surface-elevated);
  transform: scale(1.05);
}

.theme-icon-light,
.theme-icon-dark {
  width: 1.25rem;
  height: 1.25rem;
  position: absolute;
  transition: all var(--transition-normal);
}

[data-theme="light"] .theme-icon-light {
  opacity: 1;
  transform: rotate(0deg);
}

[data-theme="light"] .theme-icon-dark {
  opacity: 0;
  transform: rotate(180deg);
}

[data-theme="dark"] .theme-icon-light {
  opacity: 0;
  transform: rotate(180deg);
}

[data-theme="dark"] .theme-icon-dark {
  opacity: 1;
  transform: rotate(0deg);
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  width: 2rem;
  height: 2rem;
  align-items: center;
  justify-content: center;
}

.mobile-menu-toggle span {
  width: 1.25rem;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: all var(--transition-fast);
}

[data-theme="dark"] .mobile-menu-toggle span {
  background-color: var(--white);
}

.mobile-menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* Mobile Navigation */
.mobile-nav {
  position: fixed;
  top: 4rem;
  left: 0;
  right: 0;
  background: var(--surface-elevated);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  z-index: var(--z-fixed);
}

.mobile-nav.active {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.mobile-nav-list {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.mobile-nav-link {
  display: block;
  padding: var(--space-sm) var(--space-md);
  color: var(--text-secondary);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
  white-space: none;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  color: var(--primary-600);
  background: var(--primary-50);
}

[data-theme="dark"] .mobile-nav-link:hover,
[data-theme="dark"] .mobile-nav-link.active {
  background: var(--primary-900);
  color: var(--white);
}

/* ===== HERO SECTION ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--primary-50), var(--white), var(--accent-50));
}

[data-theme="dark"] .hero-gradient {
  background: linear-gradient(135deg, var(--gray-900), var(--gray-800), var(--primary-900));
}

.hero-shapes {
  position: absolute;
  inset: 0;
  opacity: 0.5;
}

.shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(9px);
  mix-blend-mode: multiply;
  animation: float 8s ease-in-out infinite;
}

.shape-1 {
  width: 24rem;
  height: 24rem;
  background: var(--primary-400);
  top: 25%;
  left: 25%;
  animation-delay: 0s;
}

.shape-2 {
  width: 24rem;
  height: 24rem;
  background: var(--accent-400);
  top: 33.33%;
  right: 25%;
  animation-delay: 2s;
}

.shape-3 {
  width: 24rem;
  height: 24rem;
  background: var(--secondary-400);
  bottom: 25%;
  left: 33.33%;
  animation-delay: 4s;
}

.hero-content {
  text-align: center;
  z-index: 10;
  position: relative;
  animation: fadeInUp 1s ease-out;
}

.hero-title {
  margin-bottom: var(--space-lg);
}

.hero-title-line {
  display: block;
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
}

[data-theme="dark"] .hero-title-line {
  color: var(--white);
}

.hero-title-highlight {
  display: block;
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  background: linear-gradient(135deg, var(--primary-600), var(--accent-600));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  color: var(--text-secondary);
  margin-bottom: var(--space-2xl);
  max-width: 32rem;
  margin-left: auto;
  margin-right: auto;
}

[data-theme="dark"] .hero-subtitle {
  color: rgb(214, 214, 214);
}

.hero-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}

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

.social-link {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background: var(--surface-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-normal);
}

.social-link:hover {
  transform: translateY(-4px) scale(1.1);
  box-shadow: var(--shadow-xl);
  color: var(--primary-600);
}

.scroll-indicator {
  position: absolute;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s ease-in-out infinite;
  color: var(--text-muted);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== ABOUT SECTION ===== */
.about {
  background: var(--surface);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-3xl);
  align-items: center;
}

.about-image {
  position: relative;
}

.image-container {
  position: relative;
  width: 20rem;
  height: 20rem;
  margin: 0 auto;
}

.image-container::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--primary-500), var(--accent-600));
  border-radius: 50%;
  padding: 0.5rem;
  filter: blur(30px);
  opacity: 0.3;
  animation: pulse 3s ease-in-out infinite;
}

.profile-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  position: relative;
  z-index: 2;
  border: 0.5rem solid var(--surface-elevated);
}

.about-greeting {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.about-text {
  margin-bottom: var(--space-lg);
}

.about-text p {
  margin-bottom: var(--space-md);
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
}

.about-skills h4 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(8rem, 1fr));
  gap: var(--space-sm);
}

.skill-tag {
  padding: var(--space-xs) var(--space-sm);
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
  text-align: center;
  transition: all var(--transition-normal);
}

.skill-tag:hover {
  border-color: var(--primary-400);
  color: var(--primary-600);
  transform: scale(1.05);
}

/* ===== PROJECTS SECTION ===== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
  justify-content: center;
  gap: var(--space-lg);
}

.project-card {
  background: var(--surface-elevated);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-normal);
  border: 1px solid var(--border);
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-2xl);
}

.project-image {
  position: relative;
  overflow: hidden;
  height: 12rem;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.project-card:hover .project-image img {
  transform: scale(1.1);
}

.project-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(45deg, rgba(59, 130, 246, 0.5), rgba(168, 85, 247, 0.5));
  opacity: 0;
  transition: opacity var(--transition-normal);
  display: flex;
  align-items: center;
  justify-content: center;
}

.project-card:hover .project-overlay {
  opacity: 1;
}

.project-icon {
  width: 3rem;
  height: 3rem;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
}

.project-content {
  padding: var(--space-md);
}

.project-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
  transition: color var(--transition-normal);
}

.project-card:hover .project-title {
  color: var(--primary-600);
}

.project-description {
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  line-height: var(--line-height-relaxed);
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.tech-tag {
  padding: 0.25rem var(--space-sm);
  background: var(--primary-100);
  color: var(--primary-700);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-full);
}

[data-theme="dark"] .tech-tag {
  background: var(--primary-900);
  color: var(--primary-300);
}

.project-links {
  display: flex;
  gap: var(--space-sm);
}

.project-link {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
  transition: all var(--transition-normal);
}

.project-link:hover {
  background: var(--surface-elevated);
  color: var(--text-primary);
  transform: translateY(-2px);
}

.project-link-primary {
  background: linear-gradient(135deg, var(--primary-500), var(--accent-600));
  color: var(--white);
  border: none;
}

.project-link-primary:hover {
  background: linear-gradient(135deg, var(--primary-600), var(--accent-700));
  transform: translateY(-2px);
}

/* ===== SKILLS SECTION ===== */
.skills {
  background: var(--surface);
}

.skills-content {
  display: grid;
  gap: var(--space-3xl);
}

.skills-list {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-lg);
}

.skill-item {
  width: 200px;
  background: var(--surface-elevated);
  padding: var(--space-md);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
}

.skill-header {
  display: flex;
  justify-content: between;
  align-items: center;
  margin-bottom: var(--space-sm);
}

.skill-name {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
}

.skill-percentage {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
}

.skill-bar {
  height: 0.75rem;
  background: var(--surface);
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
}

.skill-progress {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-500), var(--accent-500));
  border-radius: var(--radius-full);
  width: 0;
  transition: width 1s ease-out;
  position: relative;
  overflow: hidden;
}

.skill-progress::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transform: translateX(-100%);
  animation: shimmer 2s ease-in-out infinite;
}

@keyframes shimmer {
  100% {
    transform: translateX(100%);
  }
}

.additional-skills {
  text-align: center;
}

.additional-skills-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
}

.additional-skills-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
}

.additional-skill {
  padding: var(--space-sm) var(--space-md);
  background: linear-gradient(135deg, var(--primary-500), var(--accent-600));
  color: var(--white);
  border-radius: var(--radius-full);
  font-weight: var(--font-weight-medium);
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-normal);
}

.additional-skill:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-xl);
}

/* ===== CONTACT SECTION ===== */
.contact-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-3xl);
}

.contact-form-container {
  background: var(--surface);
  padding: var(--space-2xl);
  border-radius: var(--radius-2xl);
  border: 1px solid var(--border);
}

.contact-form-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
}

.form-input {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface-elevated);
  color: var(--text-primary);
  transition: all var(--transition-normal);
}

.form-input:focus {
  outline: none;
  border-color: var(--primary-500);
}

.form-textarea {
  resize: vertical;
  min-height: 8rem;
}

.form-error {
  display: block;
  color: var(--error-500);
  font-size: var(--font-size-sm);
  margin-top: var(--space-xs);
}

.form-status {
  margin-top: var(--space-sm);
  padding: var(--space-sm);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  text-align: center;
  font-weight: var(--font-weight-medium);
}

.form-status.success {
  background: var(--success-bg);
  color: var(--success-500);
  border: 1px solid rgba(16, 185, 129, 0.4);
}

.form-status.error {
  background: var(--error-bg);
  color: var(--error-500);
  border: 1px solid rgba(239, 68, 68, 0.4);
}

.contact-info-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.contact-items {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm);
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  transition: all var(--transition-normal);
  text-decoration: none;
  color: inherit;
}

.contact-item:hover {
  background: var(--surface-elevated);
  transform: translateY(-2px);
}

.contact-icon {
  width: 2.5rem;
  height: 2.5rem;
  background: linear-gradient(135deg, var(--primary-500), var(--accent-600));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  transition: transform var(--transition-normal);
}

.contact-item:hover .contact-icon {
  transform: scale(1.1);
}

.contact-details {
  display: flex;
  flex-direction: column;
}

.contact-label {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

.contact-value {
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
}

.contact-social-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.contact-social-links {
  display: flex;
  gap: var(--space-sm);
}

/* ===== FOOTER ===== */
.footer {
  padding: .5rem;
  background: var(--gray-900);
  color: var(--white);
}

[data-theme="dark"] .footer {
  background: var(--black);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.footer-brand .brand-logo {
  margin-bottom: var(--space-sm);
}

.footer-description {
  color: var(--gray-400);
  line-height: var(--line-height-relaxed);
}

.footer-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-sm);
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.footer-link {
  color: var(--gray-400);
  transition: all var(--transition-normal);
}

.footer-link:hover {
  color: var(--white);
  transform: translateX(4px);
}

.footer-contact-info {
  color: var(--gray-400);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.footer-bottom {
  padding-top: var(--space-lg);
  border-top: 1px solid var(--gray-800);
  color: var(--gray-400);
}

.center-footer {
  max-width: min-content;
  margin: auto;
  display: flex;
  padding: .5rem;
}

.footer-copyright {
  white-space: nowrap;
}

.footer-made-with {
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.footer-made-with svg {
  color: var(--error-500);
  animation: pulse 2s ease-in-out infinite;
}

/* ===== ANIMATIONS ===== */
.animate-fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease-out;
}

.animate-fade-in-up.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {

  .hero-title-line,
  .hero-title-highlight {
    font-size: var(--font-size-3xl);
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
    text-align: center;
  }

  .contact-content {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }
}

@media (max-width: 768px) {
  .nav {
    display: none;
  }

  .mobile-menu-toggle {
    display: flex;
  }

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

  .section-title {
    font-size: var(--font-size-3xl);
  }

  .hero-title-line,
  .hero-title-highlight {
    font-size: var(--font-size-2xl);
  }

  .hero-subtitle {
    font-size: var(--font-size-lg);
  }

  .hero-actions {
    flex-direction: column;
    gap: var(--space-md);
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .skills-list {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

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

  .center-footer {
    flex-direction: column;
    align-items: center;
  }
}

@media (max-width: 480px) {
  :root {
    --container-padding: 1rem;
  }

  .hero-title-line,
  .hero-title-highlight {
    font-size: var(--font-size-xl);
  }

  .hero-subtitle {
    font-size: var(--font-size-base);
  }

  .section-title {
    font-size: var(--font-size-2xl);
  }

  .contact-form-container {
    padding: var(--space-lg);
  }

  .image-container {
    width: 16rem;
    height: 16rem;
  }

  .social-links {
    flex-wrap: wrap;
    justify-content: center;
  }
}