@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800;900&display=swap');

/* --- DESIGN SYSTEM & VARIABLES --- */
:root {
  --bg-dark: #080b11;
  --bg-deep: #0e1322;
  --card-bg: rgba(15, 23, 42, 0.45);
  --card-border: rgba(255, 255, 255, 0.06);
  --card-border-hover: rgba(255, 255, 255, 0.15);
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --color-indigo: #6366f1;
  --color-violet: #a855f7;
  --color-cyan: #06b6d4;
  --color-blue: #3b82f6;
  
  --grad-primary: linear-gradient(135deg, var(--color-indigo) 0%, var(--color-violet) 100%);
  --grad-secondary: linear-gradient(135deg, var(--color-cyan) 0%, var(--color-blue) 100%);
  --grad-text: linear-gradient(135deg, #ffffff 0%, #cbd5e1 50%, #94a3b8 100%);
  --grad-glow: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(168, 85, 247, 0.15) 100%);

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- RESET & BASIC STYLES --- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  overflow-x: hidden;
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
}

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

ul {
  list-style: none;
}

/* --- AMBIENT BACKGROUND GLOWS --- */
.ambient-glows {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: -10;
  pointer-events: none;
}

.glow-1 {
  position: absolute;
  top: 10%;
  left: 10%;
  width: 40vw;
  height: 40vw;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, rgba(0,0,0,0) 70%);
  filter: blur(80px);
  animation: float-glow 20s infinite alternate ease-in-out;
}

.glow-2 {
  position: absolute;
  top: 45%;
  right: -5%;
  width: 50vw;
  height: 50vw;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.08) 0%, rgba(0,0,0,0) 70%);
  filter: blur(100px);
  animation: float-glow 25s infinite alternate-reverse ease-in-out;
}

.glow-3 {
  position: absolute;
  bottom: 10%;
  left: 5%;
  width: 45vw;
  height: 45vw;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.08) 0%, rgba(0,0,0,0) 70%);
  filter: blur(90px);
  animation: float-glow 22s infinite alternate ease-in-out 2s;
}

@keyframes float-glow {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(4%, 6%) scale(1.1); }
}

/* --- GRID OVERLAY --- */
.grid-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 50px 50px;
  z-index: -9;
  pointer-events: none;
}

/* --- CONTAINER --- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* --- NAVIGATION BAR --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  padding: 1.5rem 0;
  transition: var(--transition-normal);
}

.navbar.scrolled {
  padding: 1rem 0;
  background: rgba(8, 11, 17, 0.75);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--card-border);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: 'Outfit', sans-serif;
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-dot {
  width: 8px;
  height: 8px;
  background: var(--color-cyan);
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 10px var(--color-cyan);
}

.nav-menu {
  display: flex;
  gap: 2rem;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 0.25rem 0;
  transition: var(--transition-fast);
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--grad-primary);
  transition: var(--transition-fast);
}

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

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* --- HERO SECTION --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 5rem;
}

.hero-content {
  max-width: 750px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.2);
  color: #a5b4fc;
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  backdrop-filter: blur(4px);
}

.badge-pulse {
  width: 6px;
  height: 6px;
  background: var(--color-indigo);
  border-radius: 50%;
  animation: pulse-ring 2s infinite;
}

@keyframes pulse-ring {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(99, 102, 241, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(99, 102, 241, 0); }
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  line-height: 1.1;
  margin-bottom: 1.5rem;
  font-weight: 900;
}

.gradient-text {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-text-alt {
  background: var(--grad-secondary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 600px;
}

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

/* --- BUTTONS --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.875rem 2rem;
  border-radius: 8px;
  font-family: 'Outfit', sans-serif;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
}

.btn-primary {
  background: var(--grad-primary);
  color: #fff;
  border: none;
  box-shadow: 0 4px 20px rgba(168, 85, 247, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(168, 85, 247, 0.45);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(4px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

/* --- SECTION STYLES --- */
section {
  padding: 8rem 0;
  position: relative;
}

.section-header {
  margin-bottom: 4rem;
  position: relative;
}

.section-subtitle {
  color: var(--color-cyan);
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
  display: block;
}

.section-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 800;
}

/* --- PROJECTS GRID --- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

/* --- PROJECT CARD --- */
.project-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  overflow: hidden;
  backdrop-filter: blur(8px);
  transition: transform var(--transition-normal), border-color var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
  height: 100%;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(800px circle at var(--mouse-x, 0) var(--mouse-y, 0), rgba(255, 255, 255, 0.06), transparent 40%);
  z-index: 1;
  pointer-events: none;
}

.project-card:hover {
  border-color: var(--card-border-hover);
  transform: translateY(-6px);
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
}

.project-image-container {
  height: 200px;
  width: 100%;
  position: relative;
  background: rgba(15, 23, 42, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.project-placeholder-visual {
  width: 100%;
  height: 100%;
  position: relative;
  background-size: cover;
  background-position: center;
  transition: transform var(--transition-slow);
}

.project-card:hover .project-placeholder-visual {
  transform: scale(1.05);
}

.visual-gradient-loot {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.6) 0%, rgba(168, 85, 247, 0.8) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Outfit', sans-serif;
  font-size: 3rem;
  font-weight: 900;
  color: #fff;
  text-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

.visual-gradient-btc {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.6) 0%, rgba(59, 130, 246, 0.8) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Outfit', sans-serif;
  font-size: 3rem;
  font-weight: 900;
  color: #fff;
  text-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

.visual-gradient-placeholder {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.8) 0%, rgba(15, 23, 42, 0.9) 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}

.visual-logo-icon {
  font-size: 4rem;
  margin-bottom: 0.5rem;
}

.project-card-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  z-index: 2;
  background: rgba(15, 23, 42, 0.75);
  border: 1px solid var(--card-border);
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-primary);
  backdrop-filter: blur(4px);
}

.project-content {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  z-index: 2;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.project-tag {
  font-size: 0.75rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--card-border);
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  color: var(--text-secondary);
}

.project-title {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
  font-weight: 700;
}

.project-description {
  color: var(--text-secondary);
  font-size: 0.925rem;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.project-links {
  display: flex;
  gap: 1rem;
  margin-top: auto;
}

.project-link {
  font-family: 'Outfit', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-primary);
  transition: color var(--transition-fast);
}

.project-link:hover {
  color: var(--color-cyan);
}

.project-link-primary {
  color: var(--color-indigo);
}

.project-link-primary:hover {
  color: var(--color-violet);
}

/* --- ABOUT SECTION --- */
.about-content {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 4rem;
  align-items: start;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}

.skills-container {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.skill-bar-wrapper {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.skill-info {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: 'Outfit', sans-serif;
}

.skill-name {
  color: var(--text-primary);
}

.skill-percentage {
  color: var(--color-cyan);
}

.skill-track {
  height: 8px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}

.skill-fill {
  height: 100%;
  background: var(--grad-primary);
  border-radius: 4px;
  width: 0;
  transition: width 1.5s cubic-bezier(0.1, 1, 0.1, 1);
}

.skill-fill.animate {
  width: var(--percent);
}

.skill-fill-cyan {
  background: var(--grad-secondary);
}

/* --- CONTACT SECTION --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 4rem;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-info-text {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-method-item {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.contact-method-icon {
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-indigo);
  font-size: 1.25rem;
}

.contact-method-details h4 {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.contact-method-details p {
  font-weight: 600;
  color: var(--text-primary);
}

.contact-form {
  background: rgba(15, 23, 42, 0.3);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 2.5rem;
  backdrop-filter: blur(8px);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  font-family: 'Outfit', sans-serif;
}

.form-input {
  width: 100%;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 0.875rem 1rem;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-indigo);
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.15);
}

textarea.form-input {
  resize: vertical;
  min-height: 120px;
}

.submit-btn {
  width: 100%;
}

.form-status {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  border-radius: 6px;
  font-size: 0.9rem;
  display: none;
  text-align: center;
}

.form-status.success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  color: #34d399;
  display: block;
}

.form-status.error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.2);
  color: #f87171;
  display: block;
}

/* --- FOOTER --- */
footer {
  border-top: 1px solid var(--card-border);
  padding: 3rem 0;
  background: var(--bg-deep);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-text {
  color: var(--text-muted);
  font-size: 0.9rem;
}

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

.social-link {
  color: var(--text-secondary);
  font-size: 1.25rem;
  transition: color var(--transition-fast);
}

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

/* --- DETAILED CASE STUDY PAGES --- */
.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-top: 2rem;
  margin-bottom: 2rem;
  transition: color var(--transition-fast);
}

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

.case-study-hero {
  padding-top: 8rem;
  padding-bottom: 4rem;
  border-bottom: 1px solid var(--card-border);
}

.case-study-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 4rem;
  padding: 4rem 0;
}

.case-study-main {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.case-study-section h2 {
  font-size: 1.75rem;
  margin-bottom: 1rem;
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.case-study-section p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  font-size: 1.05rem;
}

.case-study-sidebar {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  position: sticky;
  top: 6rem;
}

.sidebar-box {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 2rem;
  backdrop-filter: blur(8px);
}

.sidebar-box h3 {
  font-size: 1.2rem;
  margin-bottom: 1.25rem;
  color: var(--text-primary);
}

.sidebar-meta-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.meta-item h4 {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.meta-item p {
  font-weight: 500;
  color: var(--text-primary);
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.feature-item {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--card-border);
  padding: 1.5rem;
  border-radius: 12px;
}

.feature-item h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
  color: var(--color-cyan);
}

.feature-item p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin: 0;
}

/* --- MOBILE RESPONSIVENESS --- */
@media (max-width: 992px) {
  .about-content, .contact-grid, .case-study-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .case-study-sidebar {
    position: static;
  }
}

@media (max-width: 768px) {
  section {
    padding: 5rem 0;
  }
  
  .nav-menu {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100vh;
    background: var(--bg-deep);
    border-left: 1px solid var(--card-border);
    flex-direction: column;
    padding: 6rem 2rem 2rem;
    gap: 1.5rem;
    box-shadow: -10px 0 30px rgba(0,0,0,0.5);
    z-index: 99;
  }
  
  .nav-menu.active {
    display: flex;
  }
  
  .mobile-menu-toggle {
    display: block;
    z-index: 101;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .cta-group {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
  }
}