/* ===================================
   CODEUR X - Main Stylesheet
   Style: Tech Professional / Futuristic
   =================================== */

/* ---- Google Fonts Import ---- */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800;900&family=Inter:wght@300;400;500;600;700&family=Roboto+Mono:wght@400;500;700&display=swap');

/* ---- CSS Variables ---- */
:root {
  --primary: #0a0e1a;
  --secondary: #050810;
  --accent: #0066ff;
  --accent-light: #3d8bff;
  --accent-glow: rgba(0, 102, 255, 0.3);
  --accent2: #00d4ff;
  --accent2-glow: rgba(0, 212, 255, 0.2);
  --white: #ffffff;
  --light: #f0f4ff;
  --gray: #8892a4;
  --gray-light: #c8d0e0;
  --dark-card: #0d1326;
  --dark-card2: #111827;
  --border: rgba(255, 255, 255, 0.08);
  --border-accent: rgba(0, 102, 255, 0.3);
  --gradient: linear-gradient(135deg, #0066ff 0%, #00d4ff 100%);
  --gradient-dark: linear-gradient(135deg, #020510 0%, #0a0e1a 50%, #0d1326 100%);
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  --shadow-accent: 0 10px 40px rgba(0, 102, 255, 0.3);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  --font-main: 'Poppins', sans-serif;
  --font-mono: 'Roboto Mono', monospace;
  --radius: 12px;
  --radius-lg: 20px;
  --nav-height: 80px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-main);
  background-color: var(--primary);
  color: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
  width: 100%;
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

ul { list-style: none; }

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ===================================
   SCROLLBAR
   =================================== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--secondary); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }

/* ===================================
   SELECTION
   =================================== */
::selection {
  background: var(--accent);
  color: var(--white);
}

/* ===================================
   NAVIGATION
   =================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  transition: var(--transition);
  padding: 0 20px;
}

.navbar.scrolled {
  background: rgba(5, 8, 16, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 30px rgba(0,0,0,0.3);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--white);
}

.nav-logo img {
  height: 45px;
  width: auto;
  object-fit: contain;
  transition: var(--transition);
}

.nav-logo:hover img {
  transform: rotate(5deg) scale(1.1);
}

.logo-x { color: var(--accent2); }

/* Nav Menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gray-light);
  transition: var(--transition);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--gradient);
  border-radius: 2px;
  transition: var(--transition);
}

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

.nav-link:hover::after,
.nav-link.active::after {
  width: 60%;
}

.nav-cta {
  padding: 10px 24px;
  background: var(--gradient);
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--white);
  margin-left: 8px;
  box-shadow: 0 4px 15px var(--accent-glow);
  transition: var(--transition);
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--accent-glow);
}

.nav-cta::after { display: none !important; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  transition: var(--transition);
  background: transparent;
  border: none;
  z-index: 1100;
}

.hamburger span {
  display: block;
  width: 25px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Nav */
.nav-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.6);
  z-index: 999;
  backdrop-filter: blur(4px);
}

/* ===================================
   PAGE HEADER (Inner Pages)
   =================================== */
.page-header {
  padding: 160px 20px 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
  background: var(--gradient-dark);
}

.page-header::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at center, rgba(0,102,255,0.08) 0%, transparent 70%);
  animation: pulseGlow 4s ease-in-out infinite;
}

.page-header-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(0,102,255,0.15);
  border: 1px solid var(--border-accent);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent2);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.page-header h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
}

.page-header p {
  font-size: 1.1rem;
  color: var(--gray);
  max-width: 600px;
  margin: 0 auto;
}

/* ===================================
   SECTIONS
   =================================== */
section {
  padding: 100px 0;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(0,102,255,0.1);
  border: 1px solid var(--border-accent);
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-header {
  text-align: center;
  margin-bottom: 70px;
}

.section-header h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-header p {
  font-size: 1.05rem;
  color: var(--gray);
  max-width: 600px;
  margin: 0 auto;
}

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

/* ===================================
   BUTTONS
   =================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 10px;
  font-family: var(--font-main);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255,255,255,0.15);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn-primary {
  background: var(--gradient);
  color: var(--white);
  box-shadow: 0 6px 20px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 35px var(--accent-glow);
}

.btn-secondary {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.25);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  border-color: var(--accent);
  background: rgba(0,102,255,0.1);
  transform: translateY(-3px);
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1.5px solid var(--accent);
}

.btn-outline:hover {
  background: var(--accent);
  color: var(--white);
  transform: translateY(-3px);
  box-shadow: 0 8px 25px var(--accent-glow);
}

.btn-whatsapp {
  background: #25D366;
  color: var(--white);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 35px rgba(37, 211, 102, 0.4);
}

/* ===================================
   CARDS
   =================================== */
.card {
  background: var(--dark-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}

.card:hover {
  border-color: var(--border-accent);
  transform: translateY(-8px);
  box-shadow: var(--shadow-accent);
}

/* ===================================
   GRID LAYOUTS
   =================================== */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 25px; }

/* ===================================
   FOOTER
   =================================== */
footer {
  background: var(--secondary);
  border-top: 1px solid var(--border);
  padding: 80px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 50px;
  margin-bottom: 60px;
}

.footer-brand .nav-logo {
  font-size: 1.3rem;
  margin-bottom: 20px;
}

.footer-brand p {
  color: var(--gray);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 24px;
  max-width: 280px;
}

.footer-socials {
  display: flex;
  gap: 12px;
}

.social-btn {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray);
  font-size: 1rem;
  transition: var(--transition);
  background: transparent;
}

.social-btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--white);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px var(--accent-glow);
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  color: var(--gray);
  font-size: 0.9rem;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-col ul li a:hover {
  color: var(--accent);
  transform: translateX(5px);
}

.footer-col ul li a i {
  width: 16px;
  font-size: 0.8rem;
  color: var(--accent);
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--gray);
  font-size: 0.9rem;
  margin-bottom: 12px;
  transition: var(--transition);
}

.footer-contact-item:hover { color: var(--white); }

.footer-contact-item .icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(0,102,255,0.1);
  border: 1px solid var(--border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--accent);
  flex-shrink: 0;
}

.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 15px;
}

.footer-bottom p {
  color: var(--gray);
  font-size: 0.85rem;
}

.footer-bottom p span {
  color: var(--accent);
}

/* ===================================
   WHATSAPP FLOATING BUTTON
   =================================== */
.whatsapp-float {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 58px;
  height: 58px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  z-index: 999;
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
  transition: var(--transition);
  animation: floatPulse 3s ease-in-out infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 12px 35px rgba(37, 211, 102, 0.5);
}

.whatsapp-float .tooltip {
  position: absolute;
  right: 70px;
  background: var(--dark-card2);
  color: var(--white);
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 500;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
  border: 1px solid var(--border);
}

.whatsapp-float:hover .tooltip {
  opacity: 1;
}

/* ===================================
   SCROLL TO TOP
   =================================== */
.scroll-top {
  position: fixed;
  bottom: 100px;
  right: 30px;
  width: 44px;
  height: 44px;
  background: var(--dark-card);
  border: 1px solid var(--border-accent);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1rem;
  z-index: 998;
  cursor: pointer;
  transition: var(--transition);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
}

.scroll-top.visible {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}

.scroll-top:hover {
  background: var(--accent);
  color: var(--white);
  transform: translateY(-3px);
}

/* ===================================
   ANIMATIONS
   =================================== */
@keyframes floatPulse {
  0%, 100% { transform: translateY(0); box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4); }
  50% { transform: translateY(-5px); box-shadow: 0 15px 35px rgba(37, 211, 102, 0.5); }
}

@keyframes pulseGlow {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.05); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes typewriter {
  from { width: 0; }
  to { width: 100%; }
}

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

@keyframes countUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Scroll reveal classes */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-left.revealed {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-right.revealed {
  opacity: 1;
  transform: translateX(0);
}

/* Delay classes */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }
.delay-6 { transition-delay: 0.6s; }

/* ===================================
   TECH STACK BADGES
   =================================== */
.tech-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--dark-card);
  border: 1px solid var(--border);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--gray-light);
  transition: var(--transition);
}

.tech-badge:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-3px);
}

.tech-badge i {
  color: var(--accent);
}

/* ===================================
   GLOW EFFECTS
   =================================== */
.glow-line {
  height: 1px;
  background: var(--gradient);
  box-shadow: 0 0 20px var(--accent-glow);
}

.glow-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent2);
  box-shadow: 0 0 15px var(--accent2-glow);
  animation: blink 2s ease-in-out infinite;
}

/* ===================================
   PARTICLE BACKGROUND
   =================================== */
.particles-bg {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  overflow: hidden;
  pointer-events: none;
}

.particle {
  position: absolute;
  width: 2px;
  height: 2px;
  background: var(--accent);
  border-radius: 50%;
  opacity: 0.3;
  animation: particleFloat linear infinite;
}

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

/* ===================================
   LOADER
   =================================== */
.page-loader {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--secondary);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 20px;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
}

.loader-logo {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: 4px;
}

.loader-bar {
  width: 200px;
  height: 3px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}

.loader-progress {
  height: 100%;
  background: var(--gradient);
  border-radius: 3px;
  animation: loadProgress 1.5s ease forwards;
}

@keyframes loadProgress {
  from { width: 0%; }
  to { width: 100%; }
}

/* ===================================
   STATS
   =================================== */
.stats-section {
  background: linear-gradient(135deg, rgba(0,102,255,0.05) 0%, rgba(0,212,255,0.03) 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  text-align: center;
}

.stat-item {
  padding: 40px 20px;
}

.stat-number {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  font-family: var(--font-mono);
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  color: var(--gray);
  font-size: 0.9rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ===================================
   TESTIMONIALS
   =================================== */
.testimonial-card {
  background: var(--dark-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px;
  transition: var(--transition);
}

.testimonial-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-5px);
}

.testimonial-stars {
  color: #ffd700;
  font-size: 0.9rem;
  margin-bottom: 16px;
  letter-spacing: 3px;
}

.testimonial-text {
  color: var(--gray-light);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 24px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
}

.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.testimonial-info h5 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--white);
}

.testimonial-info span {
  font-size: 0.8rem;
  color: var(--accent);
}

/* ===================================
   TAGS / FILTERS
   =================================== */
.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 40px;
}

.filter-tab {
  padding: 8px 22px;
  border-radius: 50px;
  border: 1.5px solid var(--border);
  background: transparent;
  color: var(--gray);
  font-family: var(--font-main);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.filter-tab:hover,
.filter-tab.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--white);
}

/* ===================================
   FORM STYLES
   =================================== */
.form-group {
  margin-bottom: 22px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-light);
  margin-bottom: 8px;
  letter-spacing: 0.5px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  background: var(--dark-card);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  color: var(--white);
  font-family: var(--font-main);
  font-size: 0.95rem;
  transition: var(--transition);
  outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--gray);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  background: rgba(0,102,255,0.05);
  box-shadow: 0 0 0 4px rgba(0,102,255,0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 150px;
}

.form-group select option {
  background: var(--dark-card2);
  color: var(--white);
}

/* ===================================
   MODAL / POPUP
   =================================== */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.8);
  backdrop-filter: blur(10px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--dark-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  max-width: 700px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.9) translateY(20px);
  transition: var(--transition);
}

.modal-overlay.active .modal {
  transform: scale(1) translateY(0);
}

.modal-header {
  padding: 24px 30px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-close {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--gray);
  cursor: pointer;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.modal-close:hover {
  background: rgba(255,0,0,0.1);
  border-color: rgba(255,0,0,0.3);
  color: #ff4444;
}

.modal-body {
  padding: 30px;
}

/* ===================================
   NOTIFICATION TOAST
   =================================== */
.toast {
  position: fixed;
  top: 100px;
  right: 20px;
  background: var(--dark-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 20px;
  min-width: 300px;
  z-index: 9000;
  transform: translateX(120%);
  transition: var(--transition);
  box-shadow: var(--shadow);
}

.toast.show { transform: translateX(0); }

.toast.success { border-color: #25D366; }
.toast.error { border-color: #ff4444; }

.toast-content {
  display: flex;
  align-items: center;
  gap: 12px;
}

.toast-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.1rem;
}

.toast.success .toast-icon { background: rgba(37,211,102,0.15); color: #25D366; }
.toast.error .toast-icon { background: rgba(255,68,68,0.15); color: #ff4444; }

.toast-text h5 {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 3px;
}

.toast-text p {
  font-size: 0.8rem;
  color: var(--gray);
}

/* ===================================
   DIVIDER
   =================================== */
.divider {
  height: 1px;
  background: var(--border);
  margin: 20px 0;
}

/* ===================================
   TIMELINE
   =================================== */
.timeline {
  position: relative;
  padding-left: 30px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), var(--accent2), transparent);
}

.timeline-item {
  position: relative;
  margin-bottom: 40px;
  padding-left: 24px;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -35px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--primary);
  box-shadow: 0 0 12px var(--accent-glow);
}

.timeline-date {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.timeline-content h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.timeline-content p {
  color: var(--gray);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ===================================
   PROGRESS BARS
   =================================== */
.skill-bar {
  margin-bottom: 24px;
}

.skill-bar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.skill-bar-header span {
  font-size: 0.9rem;
  font-weight: 600;
}

.skill-bar-header .percent {
  color: var(--accent);
}

.skill-bar-track {
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}

.skill-bar-fill {
  height: 100%;
  background: var(--gradient);
  border-radius: 3px;
  width: 0%;
  transition: width 1.5s ease;
}

/* ===================================
   RESPONSIVE - TABLET
   =================================== */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}

@media (max-width: 900px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-2 { grid-template-columns: 1fr; }
}

/* ===================================
   RESPONSIVE - MOBILE
   =================================== */
@media (max-width: 768px) {
  :root { --nav-height: 70px; }

  section { padding: 60px 0; }

  .container { padding: 0 16px; }

  .section-header { margin-bottom: 40px; }
  .section-header h2 { font-size: 1.8rem; }

  /* Nav Mobile */
  .nav-menu {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100vh;
    background: var(--secondary);
    border-left: 1px solid var(--border);
    flex-direction: column;
    align-items: flex-start;
    padding: 100px 30px 40px;
    gap: 6px;
    z-index: 1050;
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .nav-menu.open {
    display: flex;
    transform: translateX(0);
  }

  .nav-overlay { display: block; opacity: 0; pointer-events: none; transition: opacity 0.4s ease; }
  .nav-overlay.active { opacity: 1; pointer-events: all; }

  .nav-link {
    width: 100%;
    padding: 12px 16px;
    font-size: 1rem;
  }

  .nav-cta {
    margin-left: 0;
    margin-top: 10px;
    width: 100%;
    justify-content: center;
  }

  .hamburger { display: flex; }

  /* Grids */
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }

  /* Footer bottom */
  .footer-bottom { flex-direction: column; text-align: center; }

  /* WhatsApp float */
  .whatsapp-float { bottom: 20px; right: 20px; width: 52px; height: 52px; }
  .scroll-top { bottom: 90px; right: 20px; }
}

@media (max-width: 480px) {
  .grid-4 { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
  .filter-tabs { gap: 6px; justify-content: center; }
  .filter-tab { padding: 6px 12px; font-size: 0.75rem; }
  
  .section-header h2 { font-size: 1.6rem; }
  .section-header p { font-size: 0.95rem; }
}