/* ========== NAVBAR ========== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
  z-index: 1000;
  transition: background var(--transition);
}

.navbar.scrolled {
  background: rgba(15, 23, 42, 0.95);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.navbar-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
}

.navbar-logo span {
  color: var(--color-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition);
}

.nav-links a:hover {
  color: var(--color-text);
}

.nav-links a:hover::after {
  width: 100%;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition);
}

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

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ========== HERO ========== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--nav-height);
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 0;
}

.hero-bg .orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.15;
  animation: float 20s ease-in-out infinite;
}

.hero-bg .orb:nth-child(1) {
  width: 500px;
  height: 500px;
  background: var(--color-primary);
  top: -10%;
  left: -10%;
}

.hero-bg .orb:nth-child(2) {
  width: 400px;
  height: 400px;
  background: var(--color-secondary);
  bottom: -10%;
  right: -10%;
  animation-delay: -5s;
}

.hero-bg .orb:nth-child(3) {
  width: 300px;
  height: 300px;
  background: var(--color-primary);
  top: 50%;
  right: 30%;
  animation-delay: -10s;
  opacity: 0.08;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

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

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--color-primary);
  border-radius: 50%;
  opacity: 0.3;
  animation: particle-drift 15s linear infinite;
}

@keyframes particle-drift {
  0% { transform: translateY(100vh) scale(0); opacity: 0; }
  10% { opacity: 0.3; }
  90% { opacity: 0.3; }
  100% { transform: translateY(-10vh) scale(1); opacity: 0; }
}

.hero .container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.2);
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-primary);
  width: fit-content;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
}

.hero-title span {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  min-height: 1.6em;
}

.hero-subtitle .typing-cursor {
  display: inline-block;
  width: 3px;
  height: 1.25em;
  background: var(--color-primary);
  margin-left: 2px;
  animation: blink 1s step-end infinite;
  vertical-align: text-bottom;
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

.hero-description {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  max-width: 540px;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-text {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-secondary);
  font-weight: 500;
  transition: color var(--transition);
}

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

.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-image-wrapper {
  position: relative;
  width: 380px;
  height: 380px;
}

.hero-image-wrapper::before {
  content: '';
  position: absolute;
  inset: -10px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, var(--color-primary), var(--color-secondary), transparent, var(--color-primary));
  animation: spin 8s linear infinite;
  mask: radial-gradient(farthest-side, transparent calc(100% - 3px), #000 calc(100% - 2px));
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 3px), #000 calc(100% - 2px));
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.hero-image-wrapper .profile-placeholder {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--color-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  color: var(--color-primary);
  overflow: hidden;
}

.hero-image-wrapper .profile-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ========== ABOUT ========== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.about-text p {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  margin-bottom: 1rem;
  line-height: 1.8;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.stat-card {
  padding: 1.5rem;
  text-align: center;
  border-radius: var(--radius-md);
  background: var(--color-card);
  border: 1px solid var(--glass-border);
  transition: all var(--transition);
}

.stat-card:hover {
  border-color: rgba(6, 182, 212, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow-cyan);
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

/* ========== SKILLS ========== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.skill-category {
  grid-column: span 1;
}

.skill-category-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid rgba(6, 182, 212, 0.2);
}

.skill-category-title span {
  color: var(--color-primary);
}

.skill-items {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.skill-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--color-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  transition: all var(--transition);
  cursor: default;
}

.skill-item:hover {
  border-color: var(--color-primary);
  transform: translateX(4px);
  box-shadow: 0 0 12px rgba(6, 182, 212, 0.15);
}

.skill-item i,
.skill-item .skill-icon {
  font-size: 1.25rem;
  width: 1.5rem;
  text-align: center;
  color: var(--color-primary);
  flex-shrink: 0;
}

.skill-item .skill-name {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
}

.skill-item .skill-level {
  margin-left: auto;
  font-size: 0.7rem;
  padding: 0.2rem 0.5rem;
  border-radius: 100px;
  background: rgba(6, 182, 212, 0.1);
  color: var(--color-primary);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ========== PROJECTS ========== */
.projects-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2rem;
  align-items: center;
}

.filter-btn {
  padding: 0.5rem 1.25rem;
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 500;
  background: var(--color-card);
  color: var(--color-text-secondary);
  border: 1px solid var(--glass-border);
  cursor: pointer;
  transition: all var(--transition);
  font-family: inherit;
}

.filter-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-text);
}

.filter-btn.active {
  background: var(--color-primary);
  color: var(--color-text);
  border-color: var(--color-primary);
}

.sort-select {
  margin-left: auto;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  background: var(--color-card);
  color: var(--color-text);
  border: 1px solid var(--glass-border);
  font-size: 0.875rem;
  font-family: inherit;
  cursor: pointer;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.project-card {
  background: var(--color-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--glass-border);
  transition: all var(--transition);
}

.project-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow-glow-cyan);
  border-color: rgba(6, 182, 212, 0.3);
}

.project-image {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(59, 130, 246, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--color-primary);
  overflow: hidden;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-body {
  padding: 1.5rem;
}

.project-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.project-description {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.tech-tag {
  font-size: 0.75rem;
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  background: rgba(6, 182, 212, 0.1);
  color: var(--color-primary);
  font-weight: 500;
}

.project-links {
  display: flex;
  gap: 0.75rem;
}

.project-links .btn {
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
}

.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
}

.pagination-btn {
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-md);
  background: var(--color-card);
  color: var(--color-text);
  border: 1px solid var(--glass-border);
  cursor: pointer;
  transition: all var(--transition);
  font-family: inherit;
}

.pagination-btn:hover:not(:disabled) {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.pagination-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.pagination-info {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

/* ========== PROCESS ========== */
.process-timeline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
  padding-left: 2rem;
}

.process-timeline::before {
  content: '';
  position: absolute;
  left: 0.75rem;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-primary), var(--color-secondary));
}

.process-step {
  position: relative;
  padding: 1.5rem 0 1.5rem 2rem;
}

.process-step::before {
  content: '';
  position: absolute;
  left: -1.65rem;
  top: 2rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid var(--color-bg);
  box-shadow: 0 0 0 2px var(--color-primary);
}

.process-step-number {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.25rem;
}

.process-step-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.process-step-desc {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ========== ADVANTAGE ========== */
.advantage-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.advantage-card {
  padding: 2rem;
  border-radius: var(--radius-lg);
  background: var(--color-card);
  border: 1px solid var(--glass-border);
  transition: all var(--transition);
}

.advantage-card:hover {
  transform: translateY(-4px);
  border-color: rgba(6, 182, 212, 0.3);
  box-shadow: var(--shadow-glow-cyan);
}

.advantage-icon {
  font-size: 1.75rem;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.advantage-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.advantage-desc {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.advantage-cta {
  margin-top: 3rem;
  padding: 2rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(59, 130, 246, 0.1));
  border: 1px solid rgba(6, 182, 212, 0.2);
  text-align: center;
}

.advantage-cta p {
  font-size: 1.125rem;
  color: var(--color-text);
  font-weight: 500;
  line-height: 1.7;
}

.advantage-cta span {
  color: var(--color-primary);
}

/* ========== TESTIMONIALS ========== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.testimonial-card {
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  background: var(--color-card);
  border: 1px solid var(--glass-border);
  transition: all var(--transition);
}

.testimonial-card:hover {
  border-color: rgba(6, 182, 212, 0.2);
  transform: translateY(-2px);
}

.testimonial-quote {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 1.25rem;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-text);
  flex-shrink: 0;
}

.testimonial-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
}

.testimonial-role {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}

.badges-wrapper {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
  justify-content: center;
}

.badge {
  padding: 0.5rem 1.25rem;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  background: rgba(6, 182, 212, 0.1);
  color: var(--color-primary);
  border: 1px solid rgba(6, 182, 212, 0.2);
  transition: all var(--transition);
}

.badge:hover {
  background: rgba(6, 182, 212, 0.2);
  transform: translateY(-2px);
}

/* ========== CONTACT ========== */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  background: var(--color-card);
  border: 1px solid var(--glass-border);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  background: var(--color-bg);
  border: 1px solid var(--glass-border);
  color: var(--color-text);
  font-size: 1rem;
  font-family: inherit;
  transition: all var(--transition);
  outline: none;
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.15);
}

.form-input.error,
.form-textarea.error {
  border-color: #EF4444;
}

.form-textarea {
  resize: vertical;
  min-height: 140px;
}

.form-error {
  font-size: 0.8rem;
  color: #EF4444;
  margin-top: 0.35rem;
  display: none;
}

.form-error.visible {
  display: block;
}

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

.form-submit.loading .btn-text-content {
  visibility: hidden;
}

.form-submit.loading::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  border: 2px solid transparent;
  border-top-color: var(--color-text);
  border-radius: 50%;
  animation: spinner 0.6s linear infinite;
}

@keyframes spinner {
  to { transform: rotate(360deg); }
}

.form-success {
  text-align: center;
  padding: 2rem;
  display: none;
}

.form-success.visible {
  display: block;
}

.form-success-icon {
  font-size: 3rem;
  color: var(--color-success);
  margin-bottom: 1rem;
}

.form-success h3 {
  font-size: 1.25rem;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.form-success p {
  color: var(--color-text-secondary);
}

/* ========== FOOTER ========== */
.footer {
  padding: 3rem 0;
  border-top: 1px solid var(--glass-border);
  margin-top: 3rem;
}

.footer .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
}

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

.footer-links a {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  transition: all var(--transition);
}

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

.footer-social {
  display: flex;
  gap: 1rem;
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-card);
  border: 1px solid var(--glass-border);
  color: var(--color-text-secondary);
  font-size: 1.25rem;
  transition: all var(--transition);
}

.footer-social a:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  transform: translateY(-3px);
  box-shadow: 0 0 15px rgba(6, 182, 212, 0.2);
}

.footer-copyright {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}

.footer-nav {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-nav a {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  transition: color var(--transition);
}

.footer-nav a:hover {
  color: var(--color-primary);
}

/* ========== FALLBACK ========== */
.form-fallback.visible {
  display: block !important;
}

.form-fallback a {
  color: var(--color-primary);
  font-weight: 600;
}

/* ========== SCROLL ANIMATIONS ========== */
[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal][data-delay="100"] { transition-delay: 0.1s; }
[data-reveal][data-delay="200"] { transition-delay: 0.2s; }
[data-reveal][data-delay="300"] { transition-delay: 0.3s; }
[data-reveal][data-delay="400"] { transition-delay: 0.4s; }
[data-reveal][data-delay="500"] { transition-delay: 0.5s; }