/* ============================================================
   KAMSIS TEKNOLOJİ — style.css
   ============================================================ */

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

:root {
  --bg:        #0a0e1a;
  --bg2:       #0f1422;
  --bg3:       #141929;
  --surface:   #1a2035;
  --surface2:  #1f2740;
  --border:    rgba(99,120,180,0.18);
  --border2:   rgba(99,120,180,0.28);

  --accent:    #4f7ef8;
  --accent2:   #7c5cfc;
  --accent3:   #00d4aa;
  --danger:    #f84f6c;

  --grad:      linear-gradient(135deg, #4f7ef8, #7c5cfc);
  --grad2:     linear-gradient(135deg, #4f7ef8, #00d4aa);

  --text:      #e2e8f4;
  --text2:     #a0aec8;
  --text3:     #6b7fa8;

  --radius:    12px;
  --radius2:   20px;
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);

  --nav-h:     72px;
  --font:      'Inter', system-ui, sans-serif;
  --mono:      'JetBrains Mono', monospace;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ----- SCROLLBAR ----- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--surface2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ----- TYPOGRAPHY ----- */
h1, h2, h3, h4, h5 { line-height: 1.25; font-weight: 700; }
h1 { font-size: clamp(2.4rem, 6vw, 4.2rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); letter-spacing: -0.02em; }
h3 { font-size: 1.25rem; }
p  { color: var(--text2); }

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

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(79,126,248,0.1);
  border: 1px solid rgba(79,126,248,0.25);
  padding: 4px 14px;
  border-radius: 100px;
  margin-bottom: 16px;
}

.section { padding: 100px 0; }
.section-head { text-align: center; margin-bottom: 64px; }
.section-head h2 { margin-bottom: 12px; }
.section-head p { font-size: 1.1rem; max-width: 560px; margin: 0 auto; }

/* ----- BUTTONS ----- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font);
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 4px 24px rgba(79,126,248,0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(79,126,248,0.5);
}
.btn-outline {
  border: 1.5px solid var(--border2);
  color: var(--text);
  background: transparent;
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(79,126,248,0.08);
}
.btn-ghost {
  color: var(--text2);
  background: transparent;
  border: 1.5px solid var(--border);
}
.btn-ghost:hover {
  color: var(--text);
  border-color: var(--border2);
  background: rgba(255,255,255,0.05);
}
.btn-full { width: 100%; justify-content: center; }

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-h);
  transition: background var(--transition), box-shadow var(--transition);
}
.navbar.scrolled {
  background: rgba(10,14,26,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
}
.logo {
  font-family: var(--mono);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
}
.logo-bracket { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text2);
  padding: 8px 14px;
  border-radius: 8px;
  transition: color var(--transition), background var(--transition);
}
.nav-links a:not(.btn):hover {
  color: var(--text);
  background: rgba(255,255,255,0.06);
}
.nav-links .btn { padding: 8px 20px; }

.nav-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 16px;
}

.ctrl-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--border2);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  font-size: 0.75rem;
  font-weight: 700;
  font-family: var(--mono);
  transition: all var(--transition);
}
.ctrl-btn:hover {
  background: var(--surface2);
  border-color: var(--accent);
  color: var(--accent);
}

/* ----- LIGHT MODE ----- */
body.light {
  --bg:        #f0f4ff;
  --bg2:       #e8eeff;
  --bg3:       #dde5ff;
  --surface:   #ffffff;
  --surface2:  #eef2ff;
  --border:    rgba(79,126,248,0.15);
  --border2:   rgba(79,126,248,0.3);
  --text:      #1a2035;
  --text2:     #3d4f7a;
  --text3:     #6b7fa8;
}
body.light .navbar {
  background: rgba(240,244,255,0.92);
}
body.light .hero-video { opacity: 0.15; }
body.light .hero-video-overlay {
  background: linear-gradient(to bottom, rgba(240,244,255,0.75) 0%, rgba(240,244,255,0.92) 100%);
}
body.light .hero-title,
body.light .hero-badge { color: var(--text); }
body.light p { color: var(--text2); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: var(--nav-h);
}
.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  opacity: 0.35;
}

.hero-video-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(10,14,26,0.6) 0%, rgba(10,14,26,0.85) 100%);
  z-index: 1;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.grid-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  background-image:
    linear-gradient(rgba(79,126,248,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79,126,248,0.06) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, #000 40%, transparent 100%);
}
.hero-bg::before {
  content: '';
  position: absolute;
  top: -20%;  left: -10%;
  width: 70%; height: 70%;
  background: radial-gradient(ellipse, rgba(79,126,248,0.15) 0%, transparent 70%);
  filter: blur(40px);
}
.hero-bg::after {
  content: '';
  position: absolute;
  bottom: -20%; right: -10%;
  width: 60%; height: 60%;
  background: radial-gradient(ellipse, rgba(124,92,252,0.12) 0%, transparent 70%);
  filter: blur(60px);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 780px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text2);
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 28px;
  animation: fadeUp 0.7s ease both;
}
.badge-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent3);
  box-shadow: 0 0 8px var(--accent3);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 6px var(--accent3); }
  50% { box-shadow: 0 0 14px var(--accent3); }
}

.hero-title {
  margin-bottom: 24px;
  animation: fadeUp 0.7s 0.1s ease both;
}
.hero-desc {
  font-size: 1.15rem;
  max-width: 600px;
  margin-bottom: 40px;
  animation: fadeUp 0.7s 0.2s ease both;
}
.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 64px;
  animation: fadeUp 0.7s 0.3s ease both;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  animation: fadeUp 0.7s 0.4s ease both;
}
.stat { text-align: left; }
.stat-num {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.04em;
}
.stat-unit { font-size: 1.4rem; font-weight: 700; color: var(--accent); }
.stat-label { display: block; font-size: 0.8rem; color: var(--text3); margin-top: 2px; }
.stat-sep {
  width: 1px; height: 48px;
  background: var(--border);
}

.hero-scroll {
  position: absolute;
  bottom: 32px; left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}
.hero-scroll span {
  display: block;
  width: 20px; height: 32px;
  border: 2px solid var(--border2);
  border-radius: 10px;
  position: relative;
  cursor: pointer;
}
.hero-scroll span::after {
  content: '';
  position: absolute;
  top: 4px; left: 50%;
  transform: translateX(-50%);
  width: 4px; height: 8px;
  background: var(--accent);
  border-radius: 2px;
  animation: scrollAnim 2s infinite;
}
@keyframes scrollAnim {
  0% { top: 4px; opacity: 1; }
  100% { top: 16px; opacity: 0; }
}

/* ============================================================
   ABOUT
   ============================================================ */
.about { background: var(--bg2); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}
.about-visual { position: relative; }

.code-window {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius2);
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0,0,0,0.5);
}
.window-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 20px;
  background: var(--surface2);
  border-bottom: 1px solid var(--border);
}
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot.red    { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green  { background: #28c840; }
.window-title {
  margin-left: 8px;
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--text3);
}
.code-block {
  padding: 24px;
  font-family: var(--mono);
  font-size: 0.85rem;
  line-height: 1.8;
  overflow-x: auto;
}
.c-keyword { color: #c792ea; }
.c-type    { color: #82aaff; }
.c-string  { color: #c3e88d; }
.c-var     { color: #f07178; }
.c-op      { color: var(--text2); }

.about-badges {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 20px;
}
.a-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text2);
}
.badge-icon { font-size: 1rem; }

.about-text .section-label { margin-bottom: 12px; }
.about-text h2 { margin-bottom: 20px; }
.about-text p { margin-bottom: 16px; font-size: 1rem; }

.about-features { margin-top: 28px; display: flex; flex-direction: column; gap: 16px; }
.feature-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.feature-icon {
  flex-shrink: 0;
  width: 28px; height: 28px;
  background: rgba(79,126,248,0.15);
  border: 1px solid rgba(79,126,248,0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--accent);
  margin-top: 2px;
}
.feature-item strong { color: var(--text); font-size: 0.95rem; }
.feature-item p { font-size: 0.88rem; margin: 2px 0 0; }

/* ============================================================
   SERVICES
   ============================================================ */
.services { background: var(--bg); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius2);
  padding: 32px;
  position: relative;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  cursor: default;
}
.service-card:hover {
  border-color: var(--border2);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.35);
}
.service-card.featured {
  border-color: rgba(79,126,248,0.45);
  background: linear-gradient(160deg, rgba(79,126,248,0.08) 0%, var(--surface) 60%);
  box-shadow: 0 0 0 1px rgba(79,126,248,0.2), inset 0 1px 0 rgba(79,126,248,0.15);
}
.service-card.featured:hover {
  border-color: rgba(79,126,248,0.7);
  box-shadow: 0 20px 60px rgba(79,126,248,0.2);
}
.featured-badge {
  position: absolute;
  top: -12px; right: 24px;
  background: var(--grad);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 14px;
  border-radius: 100px;
}
.service-icon {
  width: 52px; height: 52px;
  background: rgba(79,126,248,0.12);
  border: 1px solid rgba(79,126,248,0.2);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.service-icon svg { width: 26px; height: 26px; color: var(--accent); }
.service-card h3 { margin-bottom: 12px; }
.service-card > p { font-size: 0.92rem; margin-bottom: 20px; }
.service-list { margin-bottom: 20px; }
.service-list li {
  font-size: 0.88rem;
  color: var(--text2);
  padding: 5px 0;
  padding-left: 18px;
  position: relative;
}
.service-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.75rem;
}
.service-tag {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text3);
  background: var(--bg3);
  border: 1px solid var(--border);
  padding: 5px 12px;
  border-radius: 6px;
  display: inline-block;
}

/* ============================================================
   PROJECTS
   ============================================================ */
.projects { background: var(--bg2); }
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius2);
  padding: 28px;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.project-card:hover {
  border-color: var(--border2);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.35);
}
.project-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 16px;
}
.project-icon-wrap {
  width: 44px; height: 44px;
  background: rgba(79,126,248,0.1);
  border: 1px solid rgba(79,126,248,0.2);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.project-icon-wrap svg { width: 22px; height: 22px; color: var(--accent); }
.project-links a {
  display: flex;
  align-items: center;
  color: var(--text3);
  transition: color var(--transition);
  padding: 4px;
}
.project-links a:hover { color: var(--text); }
.project-links svg { width: 18px; height: 18px; }
.project-card h3 { margin-bottom: 8px; }
.project-card p { font-size: 0.9rem; margin-bottom: 16px; }
.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.project-tags span {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--accent);
  background: rgba(79,126,248,0.1);
  border: 1px solid rgba(79,126,248,0.2);
  padding: 3px 10px;
  border-radius: 6px;
}
.duduk-card {
  border-color: rgba(0,212,170,0.25);
  background: linear-gradient(135deg, var(--surface) 0%, rgba(0,212,170,0.05) 100%);
}
.duduk-card:hover { border-color: var(--accent3); }

.duduk-icon {
  background: linear-gradient(135deg, rgba(0,212,170,0.15), rgba(79,126,248,0.15));
  border: 1px solid rgba(0,212,170,0.3);
  color: var(--accent3);
}

.duduk-badge {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent3);
  background: rgba(0,212,170,0.1);
  border: 1px solid rgba(0,212,170,0.25);
  padding: 4px 10px;
  border-radius: 100px;
  letter-spacing: 0.05em;
}

.duduk-title-row {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 8px;
}
.duduk-title-row h3 { margin: 0; letter-spacing: 0.05em; }
.duduk-sub {
  font-size: 0.75rem;
  color: var(--accent3);
  font-weight: 600;
  font-family: var(--mono);
}

.project-cta-card {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(79,126,248,0.08), rgba(124,92,252,0.08));
  border-style: dashed;
  text-align: center;
  min-height: 240px;
}
.project-cta-content { padding: 20px; }
.project-cta-icon {
  width: 56px; height: 56px;
  background: rgba(79,126,248,0.12);
  border: 1px solid rgba(79,126,248,0.25);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}
.project-cta-icon svg { width: 28px; height: 28px; color: var(--accent); }
.project-cta-content h3 { margin-bottom: 8px; }
.project-cta-content p { font-size: 0.9rem; margin-bottom: 20px; }

/* ============================================================
   TECH STACK
   ============================================================ */
.tech { background: var(--bg); }
.tech-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.tech-category {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius2);
  padding: 28px;
}
.tech-category h4 {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
  font-weight: 600;
}
.tech-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.pill {
  font-size: 0.82rem;
  font-weight: 500;
  padding: 5px 12px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text2);
  transition: all var(--transition);
  cursor: default;
}
.pill:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(79,126,248,0.08);
}

/* ============================================================
   TESTIMONIALS
   ============================================================ */
.testimonials { background: var(--bg2); }
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testi-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius2);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  transition: border-color var(--transition), transform var(--transition);
}
.testi-card:hover {
  border-color: var(--border2);
  transform: translateY(-2px);
}
.stars { color: #fbbf24; font-size: 1.1rem; letter-spacing: 2px; }
.testi-card p { font-size: 0.95rem; font-style: italic; flex: 1; }
.testi-author { display: flex; align-items: center; gap: 12px; }
.testi-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--grad);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.82rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.testi-author strong { display: block; font-size: 0.95rem; }
.testi-author span { font-size: 0.8rem; color: var(--text3); }

/* ============================================================
   CONTACT
   ============================================================ */
.contact { background: var(--bg); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 64px;
  align-items: start;
}
.contact-info { display: flex; flex-direction: column; gap: 24px; }
.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.contact-icon {
  width: 44px; height: 44px;
  background: rgba(79,126,248,0.1);
  border: 1px solid rgba(79,126,248,0.2);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-icon svg { width: 22px; height: 22px; color: var(--accent); }
.contact-item strong { display: block; font-size: 0.82rem; color: var(--text3); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 3px; }
.contact-item a, .contact-item span { color: var(--text2); font-size: 0.95rem; transition: color var(--transition); }
.contact-item a:hover { color: var(--accent); }

.contact-social { display: flex; gap: 10px; margin-top: 8px; }
.social-btn {
  width: 44px; height: 44px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text3);
  transition: all var(--transition);
}
.social-btn:hover { border-color: var(--accent); color: var(--accent); background: rgba(79,126,248,0.1); }
.social-btn svg { width: 18px; height: 18px; }

/* Contact Form */
.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius2);
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text2);
}
.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg3);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 12px 16px;
  color: var(--text);
  font-family: var(--font);
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
  resize: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text3); }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79,126,248,0.15);
}
.form-group select { appearance: none; cursor: pointer; }
.form-group select option { background: var(--surface); }

.btn-icon svg { width: 18px; height: 18px; }

.form-success {
  display: none;
  text-align: center;
  padding: 14px;
  background: rgba(0,212,170,0.1);
  border: 1px solid rgba(0,212,170,0.3);
  border-radius: 10px;
  color: var(--accent3);
  font-size: 0.9rem;
  font-weight: 500;
}
.form-success.show { display: block; animation: fadeUp 0.4s ease; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  padding-top: 64px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 2fr;
  gap: 64px;
  padding-bottom: 48px;
}
.footer-brand .logo { margin-bottom: 16px; display: block; }
.footer-brand p { font-size: 0.9rem; max-width: 280px; }

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-col h5 {
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 4px;
}
.footer-col a, .footer-col span {
  font-size: 0.88rem;
  color: var(--text3);
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--accent); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
}
.footer-bottom .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--text3);
}
.heart { color: #f84f6c; }

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1100px) {
  .tech-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 960px) {
  .services-grid  { grid-template-columns: repeat(2, 1fr); }
  .projects-grid  { grid-template-columns: repeat(2, 1fr); }
  .about-grid     { grid-template-columns: 1fr; gap: 40px; }
  .testimonials-grid { grid-template-columns: 1fr; max-width: 520px; margin: 0 auto; }
  .contact-grid   { grid-template-columns: 1fr; gap: 40px; }
  .footer-inner   { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  :root { --nav-h: 64px; }
  .section { padding: 72px 0; }

  .nav-links {
    position: fixed;
    top: var(--nav-h); left: 0; right: 0;
    background: rgba(10,14,26,0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 16px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    transition: transform var(--transition);
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links a { padding: 12px 16px; border-radius: 10px; }
  .nav-links .btn { text-align: center; justify-content: center; margin-top: 8px; }

  .hamburger { display: flex; }

  .hero-stats { gap: 20px; flex-wrap: wrap; }
  .stat-num { font-size: 1.8rem; }

  .services-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .tech-grid     { grid-template-columns: 1fr; }
  .form-row      { grid-template-columns: 1fr; }

  .contact-form { padding: 28px 20px; }
  .footer-links { grid-template-columns: repeat(2, 1fr); }
  .footer-bottom .container { flex-direction: column; gap: 8px; text-align: center; }
}

@media (max-width: 480px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.6rem; }
  .hero-cta { flex-direction: column; }
  .footer-links { grid-template-columns: 1fr; }
}