/* ============================================================
       CSS CUSTOM PROPERTIES
    ============================================================ */
:root {
  --bg: #080c14;
  --bg2: #0d1320;
  --bg3: #111827;
  --cyan: #00f2fe;
  --blue: #4facfe;
  --purple: #a78bfa;
  --pink: #f472b6;
  --text: #e2e8f0;
  --muted: #64748b;
  --border: rgba(0, 242, 254, 0.12);
  --glow: 0 0 20px rgba(0, 242, 254, 0.25);
  --glow-lg: 0 0 40px rgba(0, 242, 254, 0.35);
  --font-mono: 'Space Mono', monospace;
  --font-disp: 'Outfit', sans-serif;
  --r: 12px;
}

/* ============================================================
       RESET & BASE
    ============================================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}

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

img {
  max-width: 100%;
}

ul {
  list-style: none;
}

::selection {
  background: var(--cyan);
  color: var(--bg);
}

/* ============================================================
       SCROLLBAR
    ============================================================ */
::-webkit-scrollbar {
  width: 4px;
}

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

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

/* ============================================================
       NOISE OVERLAY
    ============================================================ */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
}

/* ============================================================
       GRID LINES BACKGROUND
    ============================================================ */
.grid-bg {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 242, 254, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 242, 254, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

/* ============================================================
       NAVBAR
    ============================================================ */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 5%;
  height: 68px;
  background: rgba(8, 12, 20, 0.7);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s;
}

.nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  position: relative;
  z-index: 2;
}

.nav-logo-img {
  height: 58px;
  width: auto;
  display: block;
  mix-blend-mode: screen;
  filter:
    contrast(999)
    /* gri tonları yok et → saf siyah/beyaz */
    invert(1)
    /* siyah imza → beyaza */
    sepia(1) saturate(6) hue-rotate(155deg) brightness(1.4) drop-shadow(0 0 10px rgba(0, 242, 254, 0.9)) drop-shadow(0 0 28px rgba(0, 242, 254, 0.45));
  transition: filter 0.3s, transform 0.3s;
}

.nav-logo:hover .nav-logo-img {
  filter:
    contrast(999) invert(1) sepia(1) saturate(10) hue-rotate(155deg) brightness(1.7) drop-shadow(0 0 18px rgba(0, 242, 254, 1)) drop-shadow(0 0 45px rgba(0, 242, 254, 0.65));
  transform: scale(1.09);
}

.nav-socials-middle {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  margin-left: 2rem;
  border-left: 1px solid var(--border);
  padding-left: 2rem;
}

.nav-socials-middle a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 1.15rem;
  transition: color 0.25s ease, transform 0.25s ease;
}

.nav-socials-middle a:hover {
  color: var(--cyan);
  transform: translateY(-2px);
}

.nav-links {
  display: flex;
  gap: 2rem;
  margin-left: auto;
}

.nav-links a {
  font-size: 0.78rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
  transition: color 0.2s;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--cyan);
  transition: width 0.3s;
}

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

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

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

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--cyan);
  transition: all 0.3s;
}

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

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

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

/* Mobile nav */
.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 0;
  position: fixed;
  top: 68px;
  left: 0;
  right: 0;
  background: rgba(8, 12, 20, 0.97);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  z-index: 999;
  transform: translateY(-110%);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-nav.open {
  transform: translateY(0);
}

.mobile-socials {
  display: flex;
  justify-content: center;
  gap: 2.2rem;
  padding: 1.2rem 5%;
  border-bottom: 1px solid var(--border);
}

.mobile-socials a {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(0, 242, 254, 0.05);
  border: 1px solid rgba(0, 242, 254, 0.15) !important;
  color: var(--cyan) !important;
  font-size: 1.15rem !important;
  padding: 0 !important;
  transition: all 0.25s ease !important;
}

.mobile-socials a:hover {
  background: var(--cyan) !important;
  color: var(--bg) !important;
  box-shadow: var(--glow) !important;
  transform: translateY(-3px) scale(1.05);
  padding-left: 0 !important;
}

.mobile-nav a {
  display: block;
  padding: 1rem 5%;
  font-size: 0.8rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  transition: color 0.2s, padding-left 0.2s;
}

.mobile-nav a:hover {
  color: var(--cyan);
  padding-left: calc(5% + 10px);
}

/* ============================================================
       HERO SECTION
    ============================================================ */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 80px 5% 40px;
  overflow: hidden;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.72rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--cyan);
  background: rgba(0, 242, 254, 0.07);
  border: 1px solid rgba(0, 242, 254, 0.2);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 1.5rem;
  animation: fadeSlideUp 0.6s 0.2s both;
}

.hero-tag::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  animation: pulse 2s infinite;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.5;
    transform: scale(0.8);
  }
}

.hero-h1 {
  font-family: var(--font-disp);
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1px;
  margin-bottom: 1rem;
  animation: fadeSlideUp 0.6s 0.35s both;
}

.hero-h1 .accent {
  color: var(--cyan);
}

.hero-h1 .accent2 {
  color: var(--blue);
}

.hero-typed-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 1.8rem;
  font-size: 0.95rem;
  color: var(--muted);
  animation: fadeSlideUp 0.6s 0.5s both;
}

.hero-typed-wrap .prefix {
  color: var(--purple);
}

#typed {
  color: var(--cyan);
}

.typed-cursor {
  color: var(--cyan);
}

.hero-desc {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.8;
  margin-bottom: 1.8rem;
  max-width: 480px;
  animation: fadeSlideUp 0.6s 0.65s both;
}

.hero-btns {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  animation: fadeSlideUp 0.6s 0.8s both;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.25s;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--cyan);
  color: var(--bg);
  font-weight: 700;
}

.btn-primary:hover {
  background: transparent;
  color: var(--cyan);
  border-color: var(--cyan);
  box-shadow: var(--glow);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.15);
}

.btn-outline:hover {
  border-color: var(--blue);
  color: var(--blue);
  box-shadow: 0 0 20px rgba(79, 172, 254, 0.2);
}

/* Canvas */
#hero-canvas {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeSlideUp 0.8s 0.4s both;
}

canvas#particleCanvas {
  border-radius: 50%;
  border: 1px solid rgba(0, 242, 254, 0.15);
  box-shadow: 0 0 60px rgba(0, 242, 254, 0.1), inset 0 0 60px rgba(0, 242, 254, 0.05);
}

/* Floating blobs */
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}

.blob-1 {
  width: 500px;
  height: 500px;
  background: rgba(0, 242, 254, 0.05);
  top: -100px;
  right: -100px;
}

.blob-2 {
  width: 400px;
  height: 400px;
  background: rgba(79, 172, 254, 0.05);
  bottom: -100px;
  left: -100px;
}

/* ============================================================
       SECTIONS COMMON
    ============================================================ */
section {
  position: relative;
  z-index: 1;
}

.section-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 100px 5%;
}

.section-label {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.72rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 1rem;
}

.section-label::before {
  content: '';
  width: 32px;
  height: 1px;
  background: var(--cyan);
}

.section-h2 {
  font-family: var(--font-disp);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1.1;
  margin-bottom: 1rem;
}

.section-sub {
  color: var(--muted);
  font-size: 0.85rem;
  max-width: 540px;
  line-height: 1.8;
  margin-bottom: 4rem;
}

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s, transform 0.7s;
}

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

/* ============================================================
       ABOUT SECTION
    ============================================================ */
#about {
  background: var(--bg2);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

.about-bio {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 2;
}

.about-bio p {
  margin-bottom: 1rem;
}

.about-bio strong {
  color: var(--text);
}

.about-highlight {
  background: rgba(0, 242, 254, 0.06);
  border-left: 3px solid var(--cyan);
  padding: 1rem 1.2rem;
  border-radius: 0 8px 8px 0;
  margin-top: 1.5rem;
  font-size: 0.83rem;
  color: var(--text);
}

/* Quick facts */
.quick-facts {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.fact-card {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 1.2rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
}

.fact-card:hover {
  border-color: rgba(0, 242, 254, 0.4);
  transform: translateX(6px);
  box-shadow: var(--glow);
}

.fact-icon {
  font-size: 1.5rem;
  min-width: 40px;
  text-align: center;
  color: var(--cyan);
}

.fact-title {
  font-family: var(--font-disp);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text);
}

.fact-desc {
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 2px;
}

/* Stats */
.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.stat {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 1rem;
  text-align: center;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.stat:hover {
  border-color: rgba(79, 172, 254, 0.4);
  box-shadow: 0 0 20px rgba(79, 172, 254, 0.15);
}

.stat-num {
  font-family: var(--font-disp);
  font-size: 1.8rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 1px;
}

/* ============================================================
       SKILLS SECTION
    ============================================================ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.skill-cat {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 1.5rem;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.skill-cat:hover {
  border-color: rgba(0, 242, 254, 0.3);
  box-shadow: var(--glow);
}

.skill-cat-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-disp);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text);
  margin-bottom: 1.2rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--border);
}

.skill-cat-title i {
  color: var(--cyan);
  width: 20px;
  text-align: center;
}

.skill-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pill {
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 0.75rem;
  letter-spacing: 0.5px;
  border: 1px solid;
  transition: all 0.25s;
  cursor: default;
}

.pill-cyan {
  border-color: rgba(0, 242, 254, 0.3);
  color: var(--cyan);
  background: rgba(0, 242, 254, 0.07);
}

.pill-blue {
  border-color: rgba(79, 172, 254, 0.3);
  color: var(--blue);
  background: rgba(79, 172, 254, 0.07);
}

.pill-purp {
  border-color: rgba(167, 139, 250, 0.3);
  color: var(--purple);
  background: rgba(167, 139, 250, 0.07);
}

.pill-pink {
  border-color: rgba(244, 114, 182, 0.3);
  color: var(--pink);
  background: rgba(244, 114, 182, 0.07);
}

.pill:hover {
  transform: translateY(-2px);
  filter: brightness(1.3);
}

/* ============================================================
       PROJECTS SECTION
    ============================================================ */
#projects {
  background: var(--bg2);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.5rem;
}

.proj-card {
  position: relative;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  overflow: hidden;
  transition: border-color 0.35s, transform 0.35s, box-shadow 0.35s;
}

.proj-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0;
  transition: opacity 0.35s;
}

.proj-card:hover {
  border-color: rgba(0, 242, 254, 0.35);
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), var(--glow);
}

.proj-card:hover::before {
  opacity: 1;
}

.proj-glow {
  position: absolute;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  filter: blur(60px);
  pointer-events: none;
  top: -80px;
  right: -80px;
  transition: opacity 0.35s;
  opacity: 0.4;
}

.proj-card:hover .proj-glow {
  opacity: 0.8;
}

.proj-num {
  font-family: var(--font-disp);
  font-size: 3.5rem;
  font-weight: 800;
  color: rgba(0, 242, 254, 0.06);
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  line-height: 1;
}

.proj-icon {
  width: 48px;
  height: 48px;
  background: rgba(0, 242, 254, 0.1);
  border: 1px solid rgba(0, 242, 254, 0.2);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 1.2rem;
  color: var(--cyan);
  transition: background 0.3s, transform 0.3s;
}

.proj-card:hover .proj-icon {
  background: rgba(0, 242, 254, 0.2);
  transform: rotate(-5deg) scale(1.1);
}

.proj-title {
  font-family: var(--font-disp);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
  margin-bottom: 0.6rem;
}

.proj-desc {
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.proj-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 1.5rem;
}

.tag {
  padding: 3px 10px;
  font-size: 0.72rem;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--muted);
}

.proj-btns {
  display: flex;
  gap: 10px;
}

.proj-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--muted);
  transition: all 0.25s;
  cursor: pointer;
}

.proj-btn:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: var(--glow);
}

.proj-btn i {
  font-size: 0.85rem;
}

/* ============================================================
       CRYPTO SHOWCASE  (full-width project card with phone slider)
    ============================================================ */
.crypto-showcase {
  position: relative;
  background: var(--bg3);
  border: 1px solid rgba(79, 172, 254, 0.2);
  border-radius: 20px;
  padding: 3rem 3rem 3rem 3.5rem;
  margin-top: 2rem;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  transition: border-color 0.35s, box-shadow 0.35s;
}

.crypto-showcase::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--blue), transparent);
  opacity: 0;
  transition: opacity 0.35s;
}

.crypto-showcase:hover {
  border-color: rgba(79, 172, 254, 0.45);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.4), 0 0 40px rgba(79, 172, 254, 0.15);
}

.crypto-showcase:hover::before {
  opacity: 1;
}

/* Info column */
.crypto-info {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

/* Screen-label buttons */
.slider-labels {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.slabel {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  border-radius: 6px;
  border: 1px solid rgba(79, 172, 254, 0.2);
  background: rgba(79, 172, 254, 0.05);
  color: var(--muted);
  cursor: pointer;
  transition: all 0.22s;
}

.slabel:hover,
.slabel.active {
  border-color: var(--blue);
  color: var(--blue);
  background: rgba(79, 172, 254, 0.12);
  box-shadow: 0 0 14px rgba(79, 172, 254, 0.2);
}

/* Phones column */
.crypto-phones {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.2rem;
}

.phone-slider-wrap {
  width: 240px;
  overflow: hidden;
  border-radius: 36px;
}

.phone-slider {
  display: flex;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  width: 100%;
}

.phone-slide {
  flex: 0 0 100%;
}

/* Telefon dış çerçeve */
.phone-frame {
  width: 240px;
  background: linear-gradient(160deg, #1a2035, #0d1320);
  border-radius: 36px;
  border: 2px solid rgba(79, 172, 254, 0.3);
  box-shadow:
    0 0 0 6px rgba(13, 19, 32, 0.9),
    0 0 0 7px rgba(79, 172, 254, 0.12),
    0 30px 80px rgba(0, 0, 0, 0.6),
    0 0 40px rgba(79, 172, 254, 0.08);
  padding: 14px 10px 16px;
  position: relative;
}

.phone-notch {
  width: 60px;
  height: 18px;
  background: #0d1320;
  border-radius: 0 0 12px 12px;
  margin: 0 auto 8px;
  position: relative;
}

.phone-notch::after {
  content: '';
  position: absolute;
  width: 8px;
  height: 8px;
  background: rgba(79, 172, 254, 0.4);
  border-radius: 50%;
  top: 5px;
  right: 14px;
}

.phone-screen {
  background: #080c14;
  border-radius: 24px;
  overflow: hidden;
  aspect-ratio: 9/16;
  position: relative;
}

.screen-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 24px;
}

/* Placeholder shown when no image yet */
.screen-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: rgba(79, 172, 254, 0.35);
  font-size: 0.75rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  background: rgba(8, 12, 20, 0.95);
}

.screen-placeholder i {
  font-size: 2rem;
  opacity: 0.5;
}

/* Arrow buttons */
.slider-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(79, 172, 254, 0.1);
  border: 1px solid rgba(79, 172, 254, 0.25);
  color: var(--blue);
  font-size: 0.85rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  z-index: 5;
}

.slider-arrow.left {
  left: -18px;
}

.slider-arrow.right {
  right: -18px;
}

.slider-arrow:hover {
  background: rgba(79, 172, 254, 0.22);
  box-shadow: 0 0 14px rgba(79, 172, 254, 0.3);
  transform: translateY(-50%) scale(1.1);
}

/* Dot indicators */
.slider-dots {
  display: flex;
  gap: 8px;
}

.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(79, 172, 254, 0.25);
  cursor: pointer;
  transition: all 0.25s;
}

.dot.active {
  background: var(--blue);
  width: 22px;
  border-radius: 4px;
  box-shadow: 0 0 10px rgba(79, 172, 254, 0.5);
}

/* Responsive: stack on small screens */
@media (max-width: 900px) {
  .crypto-showcase {
    grid-template-columns: 1fr;
    padding: 2rem 1.5rem;
  }

  .crypto-phones {
    order: -1;
    /* phones on top */
  }

  .phone-slider-wrap,
  .phone-frame {
    width: 200px;
  }

  .slider-arrow.left {
    left: -10px;
  }

  .slider-arrow.right {
    right: -10px;
  }
}

/* ============================================================
       CONTACT SECTION
    ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 5rem;
  align-items: start;
}

.contact-info h3 {
  font-family: var(--font-disp);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.contact-info p {
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.8;
  margin-bottom: 2rem;
}

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

.social-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--muted);
  font-size: 0.82rem;
  transition: all 0.25s;
}

.social-link i {
  font-size: 1.1rem;
  width: 20px;
  text-align: center;
}

.social-link:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  transform: translateX(6px);
  box-shadow: var(--glow);
}

/* Form */
.form-group {
  position: relative;
  margin-bottom: 1.5rem;
}

.form-group label {
  position: absolute;
  left: 14px;
  top: 14px;
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: 1px;
  pointer-events: none;
  transition: all 0.2s;
}

.form-group input,
.form-group textarea {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 14px 6px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  outline: none;
  transition: border-color 0.25s, box-shadow 0.25s;
  resize: none;
}

.form-group textarea {
  padding-top: 22px;
  min-height: 130px;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--cyan);
  box-shadow: var(--glow);
}

.form-group input:focus+label,
.form-group input:not(:placeholder-shown)+label,
.form-group textarea:focus+label,
.form-group textarea:not(:placeholder-shown)+label {
  top: 5px;
  font-size: 0.65rem;
  color: var(--cyan);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: transparent;
}

.form-submit {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: var(--bg);
  border: none;
  border-radius: 10px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  cursor: pointer;
  transition: opacity 0.25s, transform 0.25s, box-shadow 0.25s;
}

.form-submit:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 10px 40px rgba(0, 242, 254, 0.25);
}

.form-success {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 14px;
  background: rgba(0, 242, 254, 0.08);
  border: 1px solid rgba(0, 242, 254, 0.3);
  border-radius: 10px;
  color: var(--cyan);
  font-size: 0.82rem;
  margin-top: 1rem;
}

.form-success.show {
  display: flex;
}

/* ============================================================
       FOOTER
    ============================================================ */
footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 2rem 5%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  position: relative;
  z-index: 1;
}

.footer-copy {
  font-size: 0.75rem;
  color: var(--muted);
}

.footer-copy span {
  color: var(--cyan);
}

.back-top {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(0, 242, 254, 0.08);
  border: 1px solid rgba(0, 242, 254, 0.2);
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--cyan);
  cursor: pointer;
  transition: all 0.25s;
}

.back-top:hover {
  background: rgba(0, 242, 254, 0.15);
  box-shadow: var(--glow);
  transform: translateY(-2px);
}

/* ============================================================
       KEYFRAMES
    ============================================================ */
@keyframes fadeSlideUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0px);
  }

  50% {
    transform: translateY(-12px);
  }
}

/* ============================================================
       RESPONSIVE
    ============================================================ */
@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }

  .hero-btns {
    justify-content: center;
  }

  .hero-btns .btn {
    width: 100%;
    max-width: 320px;
    justify-content: center;
  }

  #hero-canvas {
    display: none;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  .nav-links {
    display: none;
  }

  .nav-socials-middle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    position: absolute;
    left: 60%;
    top: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
    border-left: none;
    padding-left: 0;
    margin-left: 0;
  }

  .nav-socials-middle a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(0, 242, 254, 0.05);
    border: 1px solid rgba(0, 242, 254, 0.15);
    color: var(--cyan);
    font-size: 0.95rem;
    transition: all 0.2s ease;
  }

  .nav-socials-middle a:hover {
    background: var(--cyan);
    color: var(--bg);
    box-shadow: var(--glow);
    transform: translateY(-2px);
  }

  .hamburger {
    display: flex;
  }

  .mobile-nav {
    display: flex;
  }

  .about-stats {
    grid-template-columns: repeat(3, 1fr);
  }

  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.8rem;
  }

  .skill-cat {
    padding: 1rem;
  }
}

@media (max-width: 420px) {
  .about-stats {
    grid-template-columns: 1fr 1fr;
  }
}

/* ============================================================
       CURSOR GLOW
    ============================================================ */
.cursor-glow {
  position: fixed;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 242, 254, 0.05) 0%, transparent 70%);
  pointer-events: none;
  transform: translate(-50%, -50%);
  transition: left 0.06s, top 0.06s;
  z-index: 9998;
}