/* ==== CSS Variables ==== */
:root {
  --dark: #2c3e50;
  --brand: #3498db;
  --accent: #e74c3c;
  --bg: #f9f9f9;
  --muted: #666;
  --light: #ecf0f1;
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

/* ==== Reset & Base ==== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  background: var(--bg);
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

img {
  max-width: 100%;
  display: block;
}

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

.visually-hidden {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* ==== Header ==== */
header {
  background: linear-gradient(135deg, var(--dark), var(--brand));
  color: #fff;
}

header .topbar {
  display: flex;
  justify-content: flex-end;
}

header h1 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  margin: 8px 0 6px;
}

header p {
  margin: 0 0 8px;
  color: #e9f4ff;
}

.header-cta {
  text-align: center;
  margin-top: 20px;
}

/* ==== Language Switcher ==== */
.language-switcher {
  display: flex;
  gap: 8px;
}

.language-switcher button {
  background: none;
  border: 1px solid rgba(255,255,255,.35);
  color: #fff;
  padding: 6px 10px;
  border-radius: 16px;
  cursor: pointer;
}

.language-switcher button.active {
  background: #fff;
  color: #0d1b2a;
  font-weight: 600;
}

/* ==== Navigation ==== */
nav {
  background: var(--dark);
  position: sticky;
  top: 0;
  z-index: 100;
}

nav ul {
  list-style: none;
  margin: 0;
  padding: 12px 0;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

nav a {
  color: #fff;
  text-decoration: none;
  font-weight: 500;
  padding: 6px 10px;
  border-radius: 6px;
}

nav a:hover,
nav a:focus {
  background: var(--brand);
}

nav a[aria-current="true"] {
  background: var(--brand);
}

/* ==== Sections ==== */
section {
  padding: 48px 0;
  border-bottom: 1px solid #eee;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .6s ease, transform .6s ease;
  scroll-margin-top: 82px;
}

section.revealed {
  opacity: 1;
  transform: none;
}

section h2 {
  text-align: center;
  margin: 0 0 26px;
  color: var(--dark);
  font-size: clamp(1.4rem, 2.6vw, 2rem);
}

/* ==== Profile Section ==== */
.profile-container {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  margin-bottom: 30px;
  align-items: flex-start;
}

.profile-image-container {
  text-align: center;
  flex: 0 0 200px;
}

.profile-image-wrapper {
  position: relative;
  display: inline-block;
  margin-bottom: 10px;
}

.profile-img {
  border: 5px solid var(--brand);
  border-radius: 50%;
  width: 200px;
  height: 200px;
  object-fit: cover;
  object-position: center;
  transition: transform .3s, box-shadow .3s;
  cursor: pointer;
}

.profile-img:hover {
  transform: scale(1.05);
  box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
}

.profile-image-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 50%;
  opacity: 0;
  transition: opacity .3s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.profile-image-wrapper:hover .profile-image-overlay {
  opacity: 1;
}

.profile-update-btn {
  background: var(--brand);
  color: white;
  border: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 18px;
  transition: transform .3s;
}

.profile-update-btn:hover {
  transform: scale(1.1);
  background: var(--accent);
}

.profile-status {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 10px;
  font-size: 0.9rem;
  color: var(--muted);
}

.status-indicator {
  width: 10px;
  height: 10px;
  background-color: #2ecc71;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { opacity: 1; }
  50% { opacity: 0.5; }
  100% { opacity: 1; }
}

.profile-info {
  flex: 1;
  min-width: 300px;
}

.profile-info h3 {
  color: var(--dark);
  margin-bottom: 15px;
  font-size: 1.5rem;
}

.profile-description {
  margin-bottom: 20px;
  line-height: 1.8;
  color: #444;
}

.profile-highlights {
  background: #f8f9fa;
  padding: 15px;
  border-radius: 8px;
  margin-bottom: 20px;
  border-left: 4px solid var(--brand);
}

.highlight-item {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.highlight-item:last-child {
  margin-bottom: 0;
}

.highlight-item i {
  color: var(--brand);
  width: 20px;
  text-align: center;
}

.profile-actions {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

.btn-primary {
  background: var(--brand);
  color: white;
  padding: 12px 24px;
  border-radius: 6px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s ease;
}

.btn-primary:hover {
  background: #2980b9;
  transform: translateY(-2px);
}

.btn-secondary {
  background: #f8f9fa;
  color: var(--dark);
  padding: 12px 24px;
  border-radius: 6px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid #ddd;
  transition: all 0.3s ease;
}

.btn-secondary:hover {
  background: #e9ecef;
  transform: translateY(-2px);
}

/* ==== Stats ==== */
.stats {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  margin: 26px 0;
  gap: 18px;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--brand);
}

/* ==== Services ==== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.service-card {
  background: white;
  border-radius: 10px;
  padding: 30px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  text-align: center;
  border-top: 4px solid var(--brand);
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.service-icon {
  font-size: 3rem;
  color: var(--brand);
  margin-bottom: 20px;
}

.service-card h3 {
  font-size: 1.5rem;
  margin-bottom: 15px;
}

/* ==== Skills ==== */
.skills {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  list-style: none;
  padding: 0;
}

.skills li {
  background: var(--brand);
  color: #fff;
  padding: 8px 14px;
  border-radius: 18px;
  font-weight: 500;
}

/* ==== Projects ==== */
.project {
  background: #fff;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0,0,0,.08);
  margin-bottom: 18px;
}

.project h3 {
  color: var(--dark);
  margin: 0 0 8px;
}

/* ==== Gallery ==== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 18px;
}

.gallery-grid img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 10px;
  box-shadow: 0 2px 6px rgba(0,0,0,.16);
  transition: transform .3s, box-shadow .3s;
}

.gallery-grid img:hover {
  transform: scale(1.03);
  box-shadow: 0 5px 15px rgba(0,0,0,.28);
}

/* ==== Videos ==== */
#videos {
  background: #f0f0f0;
}

.videos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 18px;
}

.video-item {
  background: #fff;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,.08);
}

.video-item video {
  width: 100%;
  height: auto;
  display: block;
}

.video-item .caption {
  padding: 14px;
  text-align: center;
}

/* ==== Timeline ==== */
.timeline {
  position: relative;
  max-width: 920px;
  margin: 0 auto;
}

.timeline::after {
  content: "";
  position: absolute;
  width: 2px;
  background: var(--brand);
  top: 0;
  bottom: 0;
  left: 50%;
  transform: translateX(-1px);
}

.timeline-item {
  padding: 10px 40px;
  position: relative;
  width: 50%;
}

.timeline-item::after {
  content: "";
  position: absolute;
  width: 20px;
  height: 20px;
  background: #fff;
  border: 4px solid var(--brand);
  border-radius: 50%;
  top: 15px;
  z-index: 1;
}

.left {
  left: 0;
}

.right {
  left: 50%;
}

.left::after {
  right: -10px;
}

.right::after {
  left: -10px;
}

.timeline-content {
  padding: 18px;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0,0,0,.06);
}

/* ==== Testimonials ==== */
.testimonials {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 18px;
}

.testimonial {
  background: #fff;
  padding: 18px;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0,0,0,.06);
  max-width: 320px;
  text-align: center;
}

.testimonial img {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 10px;
}

.testimonial .rating {
  color: #f39c12;
  margin-top: 8px;
}

/* ==== Resume ==== */
#resume .resume-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 20px;
}

#resume .card {
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0,0,0,.06);
  padding: 18px;
}

#resume h3 {
  color: var(--dark);
  margin: 0 0 8px;
}

#resume .list {
  margin-left: 18px;
}

#resume .chip {
  display: inline-block;
  margin: 5px 6px 0 0;
  padding: 6px 10px;
  border-radius: 14px;
  background: #e8f3fc;
  font-size: .9rem;
}

.full-width {
  grid-column: 1 / -1;
}

.resume-download {
  text-align: center;
  margin-top: 16px;
}

/* ==== Contact ==== */
.contact-envelope-icon {
  margin-right: 15px;
  color: var(--brand);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 15px;
  max-width: 600px;
  margin: 0 auto 30px;
  text-align: left;
  background: white;
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.contact-item {
  display: flex;
  align-items: center;
  padding: 12px 15px;
  border-radius: 8px;
  transition: all 0.3s ease;
  border-left: 4px solid var(--brand);
}

.contact-item:hover {
  background-color: #f5f9ff;
  transform: translateX(5px);
}

.contact-icon {
  width: 40px;
  height: 40px;
  background: var(--brand);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 15px;
  font-size: 18px;
}

.contact-details {
  flex: 1;
}

.contact-details a {
  color: var(--dark);
  text-decoration: none;
  transition: color 0.3s ease;
  display: flex;
  align-items: center;
  gap: 8px;
}

.contact-details a:hover {
  color: var(--brand);
}

.contact-label {
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 4px;
  font-size: 0.9rem;
}

.phone-numbers {
  display: flex;
  align-items: center;
  gap: 8px;
}

.phone-separator {
  margin: 0 10px;
  color: #ccc;
}

/* ==== Social Icons ==== */
.social-icons {
  margin: 30px 0;
  text-align: center;
}

.social-icons a {
  color: var(--dark);
  margin: 0 10px;
  font-size: 1.4rem;
  transition: color 0.3s ease;
}

.social-icons a:hover {
  color: var(--brand);
}

/* ==== Contact Form ==== */
.contact-form {
  max-width: 520px;
  margin: 18px auto;
}

.form-group {
  margin-bottom: 12px;
  position: relative;
}

#nameInput,
#emailInput,
#msgInput {
  width: 100%;
  padding: 12px;
  border-radius: 6px;
  border: 1px solid #ddd;
  font-size: 16px;
  transition: border-color 0.3s ease;
}

#nameInput:focus,
#emailInput:focus,
#msgInput:focus {
  outline: none;
  border-color: var(--brand);
}

.btn {
  background: var(--brand);
  color: #fff;
  padding: 10px 18px;
  border-radius: 8px;
  display: inline-block;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: filter 0.3s ease;
}

.btn:hover {
  filter: brightness(.95);
}

.btn-send {
  padding: 12px 24px;
  font-size: 16px;
}

.btn-send-icon {
  margin-right: 8px;
}

/* ==== Footer ==== */
footer {
  background: var(--dark);
  color: #fff;
  text-align: center;
  padding: 22px 0;
}

footer .social-icons a {
  color: #fff;
  margin: 0 8px;
  font-size: 1.2rem;
}

/* ==== Back-to-top ==== */
#topBtn {
  display: none;
  position: fixed;
  bottom: 24px;
  right: 18px;
  z-index: 99;
  font-size: 18px;
  border: none;
  outline: none;
  background: var(--brand);
  color: #fff;
  cursor: pointer;
  padding: 12px 16px;
  border-radius: 50%;
  box-shadow: 0 2px 6px rgba(0,0,0,.3);
}

#topBtn:hover {
  background: var(--dark);
}

/* ==== Preloader ==== */
#preloader {
  background: #fff url('img/loader.gif') no-repeat center center;
  position: fixed;
  inset: 0;
  z-index: 9999;
}

/* ==== Message Box ==== */
#messageBox {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: #4CAF50;
  color: #fff;
  padding: 12px 16px;
  border-radius: 6px;
  z-index: 1000;
  display: none;
  box-shadow: 0 4px 8px rgba(0,0,0,.2);
}

/* ==== Modal ==== */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  z-index: 1000;
  animation: fadeIn 0.3s ease;
}

.modal-content {
  background: white;
  border-radius: 10px;
  padding: 30px;
  max-width: 500px;
  width: 90%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: slideUp 0.3s ease;
}

.close-modal {
  position: absolute;
  top: 15px;
  right: 20px;
  font-size: 28px;
  cursor: pointer;
  color: #333;
  transition: color 0.3s;
}

.close-modal:hover {
  color: #e74c3c;
}

.modal-actions {
  display: flex;
  gap: 10px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.btn-modal {
  padding: 12px 20px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.3s;
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-modal {
  background: var(--brand);
  color: white;
  flex: 1;
}

.btn-modal.secondary {
  background: #f8f9fa;
  color: #333;
  border: 1px solid #ddd;
}

.btn-modal:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

/* ==== Form Validation Styles ==== */
.error-message {
  color: #e74c3c;
  font-size: 0.9em;
  margin-top: 5px;
  display: block;
}

.success-message {
  color: #27ae60;
  font-size: 1em;
  margin-top: 10px;
  padding: 10px;
  background: #d5f4e6;
  border-radius: 5px;
  text-align: center;
}

.fa-spin {
  animation: fa-spin 1s infinite linear;
}

@keyframes fa-spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { transform: translate(-50%, 60px); opacity: 0; }
  to { transform: translate(-50%, -50%); opacity: 1; }
}

/* ==== Responsive Design ==== */
@media (max-width: 768px) {
  .timeline::after {
    left: 18px;
  }
  
  .timeline-item {
    width: 100%;
    padding-left: 50px;
    padding-right: 10px;
  }
  
  .timeline-item::after {
    left: 10px;
  }
  
  .right {
    left: 0;
  }
  
  #resume .resume-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-item {
    flex-direction: column;
    text-align: center;
    padding: 15px;
  }
  
  .contact-icon {
    margin-right: 0;
    margin-bottom: 10px;
  }
  
  .phone-numbers {
    flex-direction: column;
    gap: 5px;
  }
  
  .phone-separator {
    display: none;
  }
  
  .profile-container {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  
  .profile-info {
    min-width: 100%;
  }
  
  .profile-actions {
    justify-content: center;
  }
  
  .highlight-item {
    justify-content: center;
  }
  
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  .modal-actions {
    flex-direction: column;
  }
  
  .btn-modal {
    width: 100%;
  }
  
  .profile-img {
    width: 180px;
    height: 180px;
  }
}