/* =============================================
   Modern Portfolio CSS — @geangu
   ============================================= */

:root {
  --bg-primary: #0d0d0d;
  --bg-secondary: #1a1a1a;
  --bg-card: #242424;
  --accent: #dc0000;
  --accent-hover: #ff1e1e;
  --text-primary: #f0f0f0;
  --text-secondary: #a0a0a0;
  --white: #f5f5f5;
  --border: rgba(220, 0, 0, 0.2);
  --shadow: 0 10px 30px -15px rgba(0, 0, 0, 0.8);
  --font-main: 'Inter', sans-serif;
  --transition: all 0.3s cubic-bezier(0.645, 0.045, 0.355, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  background-image:
    repeating-linear-gradient(45deg, rgba(255,255,255,0.018) 0, rgba(255,255,255,0.018) 1px, transparent 0, transparent 50%),
    repeating-linear-gradient(-45deg, rgba(255,255,255,0.018) 0, rgba(255,255,255,0.018) 1px, transparent 0, transparent 50%);
  background-size: 6px 6px;
  color: var(--text-secondary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a:hover {
  color: var(--accent-hover);
}

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

/* =============================================
   PRELOADER
   ============================================= */

#preloader {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease;
}

#preloader.hidden {
  opacity: 0;
  pointer-events: none;
}

.loader-ring {
  width: 50px;
  height: 50px;
  border: 3px solid var(--bg-secondary);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* =============================================
   NAVBAR
   ============================================= */

#navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 100;
  padding: 24px 50px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: var(--transition);
}

#navbar.scrolled {
  background: rgba(13, 13, 13, 0.97);
  backdrop-filter: blur(10px);
  padding: 16px 50px;
  box-shadow: 0 2px 20px rgba(2, 12, 27, 0.5);
}

.nav-logo {
  font-size: 22px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.5px;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: var(--transition);
}

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

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

/* Hamburger */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.lang-toggle {
  background: none;
  border: none;
  border-left: 1px solid var(--border);
  padding: 0 0 0 16px;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  cursor: pointer;
  font-family: var(--font-main);
  transition: var(--transition);
}

.lang-toggle:hover {
  color: var(--accent);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 200;
  background: none;
  border: none;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--accent);
  transition: var(--transition);
}

.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--bg-secondary);
  z-index: 150;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu a {
  color: var(--text-primary);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.mobile-menu a:hover {
  color: var(--accent);
}

/* =============================================
   SIDE SOCIAL (desktop)
   ============================================= */

.side-social {
  position: fixed;
  bottom: 0;
  left: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  z-index: 10;
}

.side-social::after {
  content: '';
  display: block;
  width: 1px;
  height: 90px;
  background: var(--text-secondary);
}

.side-social a {
  color: var(--text-secondary);
  font-size: 18px;
  transition: var(--transition);
}

.side-social a:hover {
  color: var(--accent);
  transform: translateY(-3px);
}

/* =============================================
   HERO
   ============================================= */

#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 0 150px;
  position: relative;
  background:
    radial-gradient(ellipse at 15% 50%, rgba(220,0,0,0.07) 0%, transparent 55%),
    radial-gradient(ellipse at 85% 20%, rgba(220,0,0,0.04) 0%, transparent 45%);
}

.hero-content {
  max-width: 900px;
}

.hero-greeting {
  color: var(--text-primary);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 2px;
  margin-bottom: 20px;
  font-family: 'Courier New', monospace;
}

.hero-name {
  font-size: clamp(40px, 6vw, 80px);
  font-weight: 700;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 12px;
  letter-spacing: -1px;
}

.hero-title {
  font-size: clamp(28px, 4vw, 60px);
  font-weight: 700;
  color: var(--text-secondary);
  line-height: 1.1;
  margin-bottom: 28px;
  letter-spacing: -0.5px;
}

.hero-description {
  max-width: 560px;
  font-size: 17px;
  line-height: 1.7;
  margin-bottom: 48px;
}

.hero-actions {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border: 1px solid var(--accent);
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border-radius: 4px;
  transition: var(--transition);
  background: transparent;
}

.btn-primary:hover {
  background: rgba(100, 255, 218, 0.1);
  color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(100, 255, 218, 0.15);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: var(--accent);
  color: var(--bg-primary);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border-radius: 4px;
  transition: var(--transition);
}

.btn-secondary:hover {
  background: var(--accent-hover);
  color: var(--bg-primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(100, 255, 218, 0.25);
}

/* Hero image area */
.hero-image-wrapper {
  position: absolute;
  right: 120px;
  top: 50%;
  transform: translateY(-50%);
  width: 320px;
  height: 380px;
}

.hero-image-wrapper::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 8px;
  background: var(--accent);
  opacity: 0.1;
  transform: translate(10px, 10px);
  z-index: 0;
}

.hero-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
  position: relative;
  z-index: 1;
  filter: grayscale(15%);
  transition: var(--transition);
}

.hero-image-wrapper:hover img {
  filter: grayscale(0%);
}

.hero-image-border {
  position: absolute;
  inset: 0;
  border: 2px solid var(--accent);
  border-radius: 8px;
  transform: translate(18px, 18px);
  z-index: 0;
  transition: var(--transition);
}

.hero-image-wrapper:hover .hero-image-border {
  transform: translate(10px, 10px);
}

/* =============================================
   SECTIONS COMMON
   ============================================= */

section {
  padding: 100px 150px;
}

.section-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 60px;
}

.section-number {
  color: var(--accent);
  font-family: 'Courier New', monospace;
  font-size: 20px;
  font-weight: 700;
}

.section-title {
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 700;
  color: var(--white);
  white-space: nowrap;
}

.section-line {
  flex: 1;
  height: 1px;
  background: var(--border);
  max-width: 300px;
}

/* =============================================
   ABOUT
   ============================================= */

#about .about-grid {
  display: grid;
  grid-template-columns: 3fr 1fr;
  gap: 60px;
  align-items: start;
}

.about-text p {
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 20px;
}

.about-text p:last-child {
  margin-bottom: 0;
}

.about-text strong {
  color: var(--accent);
  font-weight: 500;
}

.about-image-wrap {
  position: relative;
}

.about-image-wrap::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 6px;
  background: rgba(100, 255, 218, 0.1);
  z-index: 1;
  transition: var(--transition);
}

.about-image-wrap:hover::before {
  opacity: 0;
}

.about-image-wrap img {
  border-radius: 6px;
  width: 100%;
  max-width: 220px;
  display: block;
  margin: 0 auto;
  filter: grayscale(20%);
  transition: var(--transition);
}

.about-image-wrap:hover img {
  filter: grayscale(0%);
}

.about-image-border {
  position: absolute;
  inset: 0;
  border: 2px solid var(--accent);
  border-radius: 6px;
  transform: translate(16px, 16px);
  z-index: 0;
  transition: var(--transition);
}

.about-image-wrap:hover .about-image-border {
  transform: translate(8px, 8px);
}

/* =============================================
   WHAT I DO
   ============================================= */

#what-i-do {
  background: var(--bg-secondary);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(200px, 100%), 1fr));
  gap: 24px;
}

.service-card {
  background: linear-gradient(160deg, rgba(220,0,0,0.04) 0%, transparent 40%), var(--bg-primary);
  border: 1px solid var(--border);
  border-top: 2px solid rgba(220,0,0,0.35);
  border-radius: 8px;
  padding: 36px 28px;
  text-align: center;
  transition: var(--transition);
  cursor: default;
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent);
  box-shadow: var(--shadow);
}

.service-icon {
  font-size: 40px;
  color: var(--accent);
  margin-bottom: 20px;
}

.service-card h3 {
  color: var(--text-primary);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  line-height: 1.4;
}

/* =============================================
   SKILLS
   ============================================= */

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 40px;
}

.skill-group h4 {
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.skill-group h4 i {
  color: var(--accent);
  font-size: 16px;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.skill-tag {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(100, 255, 218, 0.06);
  border: 1px solid rgba(100, 255, 218, 0.2);
  color: var(--text-secondary);
  font-size: 13px;
  border-radius: 4px;
  font-family: 'Courier New', monospace;
  transition: var(--transition);
}

.skill-tag:hover {
  background: rgba(100, 255, 218, 0.12);
  color: var(--accent);
  border-color: var(--accent);
}

.skill-tag--featured {
  background: rgba(100, 255, 218, 0.12);
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 600;
}

.skill-tag--featured::before {
  content: '★ ';
  font-size: 10px;
  vertical-align: middle;
}

.skill-group--featured h4 {
  color: var(--accent);
}

.skill-group--featured h4 i {
  color: var(--accent);
}

/* =============================================
   CONTACT
   ============================================= */

/* ==================== BEYOND CODE ==================== */

#beyond {
  background: var(--bg-primary);
}

.beyond-grid {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 60px;
  align-items: start;
}

.beyond-text p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}

.beyond-text strong {
  color: var(--text-primary);
}

.beyond-forza {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent) !important;
  letter-spacing: 0.04em;
  margin-top: 28px !important;
}

.accent-dot {
  color: var(--accent);
  font-size: 0.6rem;
  vertical-align: middle;
  margin-left: 4px;
}

.beyond-facts {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.fact-card {
  display: flex;
  align-items: center;
  gap: 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  padding: 18px 20px;
  transition: var(--transition);
}

.fact-card:hover {
  background: var(--bg-secondary);
  transform: translateX(4px);
}

.fact-icon {
  font-size: 1.4rem;
  color: var(--accent);
  flex-shrink: 0;
  width: 24px;
  text-align: center;
}

.fact-label {
  display: block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.fact-value {
  display: block;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* ==================== CONTACT ==================== */

#contact {
  background: var(--bg-secondary);
}

.contact-wrapper {
  max-width: 620px;
  margin: 0 auto;
  text-align: center;
}

.contact-label {
  color: var(--accent);
  font-family: 'Courier New', monospace;
  font-size: 14px;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.contact-title {
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 20px;
  line-height: 1.1;
}

.contact-description {
  font-size: 16px;
  line-height: 1.7;
  margin-bottom: 48px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 40px;
}

.contact-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-size: 15px;
}

.contact-item i {
  color: var(--accent);
  width: 18px;
  text-align: center;
}

.contact-item a {
  color: var(--text-secondary);
  transition: var(--transition);
}

.contact-item a:hover {
  color: var(--accent);
}

.contact-socials {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 32px;
}

.contact-socials a {
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 17px;
  transition: var(--transition);
}

.contact-socials a:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(100, 255, 218, 0.15);
}

/* =============================================
   FOOTER
   ============================================= */

footer {
  background: var(--bg-primary);
  padding: 28px;
  text-align: center;
  border-top: 1px solid var(--border);
}

footer p {
  font-family: 'Courier New', monospace;
  font-size: 13px;
  color: var(--text-secondary);
  letter-spacing: 1px;
}

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

/* =============================================
   SCROLLBAR
   ============================================= */

::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-secondary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}

/* =============================================
   AOS overrides
   ============================================= */

[data-aos] {
  pointer-events: none;
}

[data-aos].aos-animate {
  pointer-events: auto;
}

/* =============================================
   RESPONSIVE
   ============================================= */

@media (max-width: 1200px) {
  #hero {
    padding: 0 80px;
  }

  section {
    padding: 80px 80px;
  }

  #navbar,
  #navbar.scrolled {
    padding-left: 40px;
    padding-right: 40px;
  }

  .hero-image-wrapper {
    right: 60px;
    width: 270px;
    height: 320px;
  }
}

@media (max-width: 1024px) {
  .hero-image-wrapper {
    display: none;
  }

  .hero-content {
    max-width: 100%;
  }

  #about .about-grid {
    grid-template-columns: 1fr;
  }

  .side-social {
    display: none;
  }
}

@media (max-width: 768px) {
  #hero {
    padding: 120px 28px 80px;
  }

  section {
    padding: 70px 28px;
  }

  .beyond-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  #navbar,
  #navbar.scrolled {
    padding-left: 24px;
    padding-right: 24px;
  }

  .nav-links {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .section-line {
    display: none;
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .about-image-border {
    display: none;
  }
}

@media (max-width: 480px) {
  .hero-name {
    font-size: 36px;
  }

  .hero-title {
    font-size: 26px;
  }
}