/* ===== CSS VARIABLES ===== */
:root {
  --primary-color: #007bff;
  --dark-bg: #000000;
  --light-bg: #ffffff;
  --card-bg: linear-gradient(135deg, #5783aaa9 0%, #d8c8e9bb 100%);
  --card-bg-light: #f8f9fa;
  --text-color: #f0f0f0;
  --text-color-light: #333333;
  --text-muted: #bbbbbb;
  --text-muted-light: #666666;
  --hover-shadow: 0 15px 35px rgba(0, 123, 255, 0.25);
  --hover-shadow-light: 0 10px 25px rgba(0, 0, 0, 0.15);
  --card-border-radius: 12px;
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* Light theme overrides */
[data-theme="light"] {
  --dark-bg: #ffffff;
  --card-bg: #f8f9fa;
  --text-color: #333333;
  --text-muted: #666666;
}

/* ===== BASE ===== */
body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  scroll-behavior: smooth;
}

/* ===== NAVBAR ===== */
#navbar {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  width: 100% !important;
  z-index: 99999 !important;
}

/* Default navbar (dark mode) */
[data-theme="dark"] #navbar {
  background: rgba(0, 0, 0, 0.6) !important;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: #fff;
  transition: background 0.3s ease;
}
[data-theme="dark"] #navbar.scrolled {
  background: rgba(0, 0, 0, 0.9) !important;
}

/* Light mode navbar */
[data-theme="light"] #navbar {
  background: rgba(255, 255, 255, 0.6) !important;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: #000;
  transition: background 0.3s ease;
}
[data-theme="light"] #navbar.scrolled {
  background: rgba(255, 255, 255, 0.9) !important;
}

/* Navbar links */
.navbar-dark .navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.85) !important;
}
.navbar-dark .navbar-nav .nav-link:hover {
  color: var(--primary-color) !important;
}
[data-theme="light"] .navbar-dark {
  background-color: #ffffff !important;
}
[data-theme="light"] .navbar-dark .navbar-nav .nav-link,
[data-theme="light"] .navbar-dark .navbar-brand {
  color: #333333 !important;
}
[data-theme="light"] .navbar-dark .dropdown-menu {
  background-color: #f8f9fa;
  border: 1px solid #ddd;
}
[data-theme="light"] .navbar-dark .dropdown-item {
  color: #333333;
}
[data-theme="light"] .navbar-dark .dropdown-item:hover {
  background-color: #e9ecef;
  color: var(--primary-color);
}

/* ===== THEME TOGGLE ===== */
.theme-toggle {
  background: transparent;
  border: none;
  color: inherit;
  font-size: 18px;
  cursor: pointer;
}
.theme-toggle:hover {
  color: var(--primary-color);
}

/* ===== HERO SECTION ===== */
.hero {
  min-height: 100vh;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  position: relative;
  overflow: hidden;
  z-index: 1;
  margin-top: 50px;
}
[data-theme="light"] .hero {
  background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 2;
}
[data-theme="light"] .hero::before {
  background: rgba(0, 0, 0, 0.2);
}
.hero .container {
  position: relative;
  z-index: 3;
}
.profile-img {
  width: 300px;
  height: 300px;
  object-fit: cover;
  border: 5px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  opacity: 0;
  transform: scale(0.8);
  animation: profileFadeIn 1s ease-out 0.5s forwards;
}
@keyframes profileFadeIn {
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.typewriter {
  overflow: hidden;
  border-right: 0.15em solid var(--primary-color);
  white-space: nowrap;
  margin: 0 auto;
  animation: typing 3s steps(40, end), blink-caret 0.75s step-end infinite;
}
.typewriter-subtitle {
  overflow: hidden;
  white-space: nowrap;
  margin: 0 auto;
  opacity: 0;
  animation: typing-subtitle 2s steps(30, end) 2s forwards;
}
@keyframes typing {
  from { width: 0; }
  to { width: 100%; }
}
@keyframes typing-subtitle {
  from { width: 0; opacity: 1; }
  to { width: 100%; opacity: 1; }
}
@keyframes blink-caret {
  from, to { border-color: transparent; }
  50% { border-color: var(--primary-color); }
}

.hero-buttons {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 1s ease-out 1.5s forwards;
}
.social-icons {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 1s ease-out 2s forwards;
}
.social-icons a {
  color: white;
  margin: 0 15px;
  transition: all 0.3s ease;
}
.social-icons a:hover {
  color: var(--primary-color);
  transform: translateY(-3px);
}
@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== ENTRANCE ANIMATIONS ===== */
.fade-in,
.fade-in-left,
.fade-in-right,
section {
  opacity: 0;
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.fade-in {
  transform: translateY(30px);
}
.fade-in-left {
  transform: translateX(-50px);
}
.fade-in-right {
  transform: translateX(50px);
}
.visible {
  opacity: 1 !important;
  transform: translate(0, 0) !important;
}

/* ===== RESUME SECTION ===== */
.resume-toggle-btn {
  position: relative;
  overflow: hidden;
  transition: var(--transition-smooth);
  padding: 12px 24px;
  border-radius: 50px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.resume-toggle-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 123, 255, 0.3);
}

.resume-toggle-btn .toggle-icon {
  transition: transform 0.3s ease;
}

.resume-toggle-btn.expanded .toggle-icon {
  transform: rotate(180deg);
}

.resume-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.6s ease-in-out, opacity 0.3s ease;
  opacity: 0;
}

.resume-content.show {
  max-height: 2000px;
  opacity: 1;
  margin-top: 2rem;
}

.resume-content .row {
  transform: translateY(20px);
  opacity: 0;
  transition: all 0.4s ease;
}

.resume-content.show .row {
  transform: translateY(0);
  opacity: 1;
}

.resume-content.show .row:nth-child(1) { transition-delay: 0.1s; }
.resume-content.show .row:nth-child(2) { transition-delay: 0.2s; }
.resume-content.show .row:nth-child(3) { transition-delay: 0.3s; }

/* ===== SECTION STYLES ===== */
.bg-dark {
  background-color: var(--dark-bg) !important;
  color: var(--text-color) !important;
  position: relative;
  z-index: 2;
}

.bg-light-section {
  background-color: var(--light-bg);
  color: var(--text-color-light);
  position: relative;
  z-index: 2;
}

[data-theme="light"] .bg-dark {
  background-color: var(--dark-bg) !important;
  color: var(--text-color) !important;
}

section {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
  will-change: opacity, transform;
}

section.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== ENHANCED CARD STYLES ===== */
.service-card {
  background: var(--card-bg);
  border: none;
  border-radius: var(--card-border-radius);
  transition: var(--transition-smooth);
  opacity: 0;
  transform: translateY(30px);
  color: var(--text-color);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

/* Card glow effect */
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(185, 215, 246, 0.34), transparent);
  transition: left 0.5s;
  z-index: 1;
}

.service-card:hover::before {
  left: 100%;
}

.service-card .card-body {
  position: relative;
  z-index: 2;
  transition: var(--transition-smooth);
}

.service-card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

/* Enhanced hover effects */
.service-card:hover {
  transform: translateY(-12px) scale(1.02);
  box-shadow: var(--hover-shadow);
  border: 1px solid rgba(0, 123, 255, 0.2);
}

.service-card:hover .card-body {
  transform: scale(1.03);
}

/* Icon animation on hover */
.service-card i {
  transition: var(--transition-bounce);
}

.service-card:hover i {
  transform: scale(1.2) rotate(5deg);
  color: var(--primary-color) !important;
}

/* Light theme service cards */
[data-theme="light"] .service-card {
  background: var(--card-bg-light);
  color: var(--text-color-light);
  border: 1px solid #e9ecef;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .service-card:hover {
  box-shadow: var(--hover-shadow-light);
  border-color: rgba(0, 123, 255, 0.3);
}

[data-theme="dark"] .service-card .text-muted {
  color: #e0e0e0 !important;
}

[data-theme="light"] .service-card .text-muted {
  color: var(--text-muted-light) !important;
}

/* ===== PORTFOLIO CARDS ===== */
.portfolio-card {
  transition: var(--transition-smooth);
  opacity: 0;
  transform: scale(0.95);
  background: linear-gradient(135deg, #ffffff 0%, #fbf9f9 100%);
  color: #007bff;
  border-radius: var(--card-border-radius);
  overflow: hidden;
  position: relative;
  cursor: pointer;
}

/* Image overlay effect */
.portfolio-card .card-img-top {
  transition: var(--transition-smooth);
  position: relative;
}

.portfolio-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, rgba(255, 255, 255, 0.8), rgba(153, 89, 195, 0.8));
  opacity: 0;
  transition: var(--transition-smooth);
  z-index: 1;
  pointer-events: none;
}

.portfolio-card:hover::after {
  opacity: 1;
}

.portfolio-card:hover .card-img-top {
  transform: scale(1.1);
}

.portfolio-card .card-body {
  position: relative;
  z-index: 2;
  transition: var(--transition-smooth);
}

[data-theme="light"] .portfolio-card {
  border: 1px solid #e9ecef;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

.portfolio-card.visible {
  opacity: 1;
  transform: scale(1);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.portfolio-card:hover {
  transform: scale(1.05) translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

[data-theme="light"] .portfolio-card:hover {
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.portfolio-card:hover .card-body {
  transform: translateY(-5px);
}

/* Button hover effects in cards */
.portfolio-card .btn,
.service-card .btn {
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.portfolio-card .btn:hover,
.service-card .btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 123, 255, 0.4);
}

/* ===== SKILL BADGES ===== */
.skill-tags {
  margin-top: 0.75rem;
}

.skill-tags .badge {
  font-size: 0.75rem;
  padding: 0.4rem 0.7rem;
  font-weight: 500;
  transition: var(--transition-smooth);
  cursor: pointer;
}

.skill-tags .badge:hover {
  transform: scale(1.1);
  box-shadow: 0 3px 10px rgba(0, 123, 255, 0.3);
}

.bg-outline-primary {
  background-color: transparent !important;
  border: 1px solid var(--primary-color) !important;
  color: var(--primary-color) !important;
}

.bg-outline-primary:hover {
  background-color: var(--primary-color) !important;
  color: white !important;
}

/* ===== FIGMA BUTTON ===== */
.figma-btn {
  background: linear-gradient(90deg, #a259ff, #f24e1e, #ff7262, #1abcfe);
  color: #fff !important;
  border: none;
  font-weight: 600;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.figma-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s;
}

.figma-btn:hover::before {
  left: 100%;
}

.figma-btn:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 8px 25px rgba(0,0,0,0.3);
}

/* ===== FOOTER ===== */
.footer-icon {
  color: white;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition-smooth);
  padding: 8px 12px;
  border-radius: 8px;
}

.footer-icon:hover {
  color: var(--primary-color);
  transform: translateY(-3px);
  background: rgba(0, 123, 255, 0.1);
}

[data-theme="light"] .footer {
  background-color: #f8f9fa;
}

[data-theme="light"] .footer-icon {
  color: #333333;
}

[data-theme="light"] .footer-icon:hover {
  color: var(--primary-color);
  background: rgba(0, 123, 255, 0.05);
}

/* ===== STAGGER DELAYS ===== */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }
.stagger-7 { transition-delay: 0.7s; }
.stagger-8 { transition-delay: 0.8s; }

/* ===== RESPONSIVE HOVER EFFECTS ===== */
@media (max-width: 768px) {
  /* Reduce hover effects intensity on mobile */
  .service-card:hover,
  .portfolio-card:hover {
    transform: translateY(-6px) scale(1.01);
  }
  
  .service-card:hover .card-body {
    transform: scale(1.01);
  }
  
  .portfolio-card:hover .card-body {
    transform: translateY(-2px);
  }
  
  /* Touch-friendly hover states */
  .service-card:active,
  .portfolio-card:active {
    transform: scale(0.98);
  }
}

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

/* Focus states for keyboard navigation */
.service-card:focus-visible,
.portfolio-card:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* ===== PERFORMANCE OPTIMIZATION ===== */
.service-card,
.portfolio-card {
  will-change: transform, box-shadow;
}

.service-card:hover,
.portfolio-card:hover {
  will-change: auto;
}