/* ============================================================
   KSmart Solutions — Global Stylesheet
   Design System: Deep Navy + Electric Blue + Cyan
   ============================================================ */

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

/* ---- CSS Custom Properties ---- */
:root {
  --bg-primary:    #0A0E1A;
  --bg-secondary:  #0F1526;
  --bg-card:       rgba(255, 255, 255, 0.04);
  --bg-card-hover: rgba(79, 142, 247, 0.08);

  --blue:          #4F8EF7;
  --blue-light:    #7AABFF;
  --cyan:          #00D4FF;
  --purple:        #8B5CF6;
  --green:         #10B981;

  --text-primary:  #F0F4FF;
  --text-secondary:#94A3B8;
  --text-muted:    #4B5563;

  --border:        rgba(255, 255, 255, 0.07);
  --border-blue:   rgba(79, 142, 247, 0.3);

  --gradient-main: linear-gradient(135deg, #4F8EF7 0%, #00D4FF 100%);
  --gradient-hero: linear-gradient(135deg, #0A0E1A 0%, #0D1530 50%, #0A0E1A 100%);
  --gradient-card: linear-gradient(135deg, rgba(79,142,247,0.1), rgba(0,212,255,0.05));

  --shadow-blue:   0 0 40px rgba(79, 142, 247, 0.15);
  --shadow-card:   0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-glow:   0 0 60px rgba(79, 142, 247, 0.2);

  --radius-sm:     8px;
  --radius-md:     16px;
  --radius-lg:     24px;
  --radius-xl:     32px;

  --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-heading:  'Outfit', sans-serif;
  --font-body:     'Inter', sans-serif;

  --nav-height:    70px;
}

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

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

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

img { max-width: 100%; display: block; }
a  { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; }

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--blue); border-radius: 3px; }

/* ---- Selection ---- */
::selection { background: rgba(79,142,247,0.3); color: var(--text-primary); }

/* ============================================================
   NAVIGATION
   ============================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  padding: 0 2rem;
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(10, 14, 26, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 30px rgba(0,0,0,0.3);
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-primary);
}

.nav-logo .logo-icon {
  width: 38px; height: 38px;
  background: var(--gradient-main);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 900;
  color: #fff;
  box-shadow: 0 0 20px rgba(79,142,247,0.4);
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--gradient-main);
  transition: var(--transition);
  border-radius: 2px;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
}

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

.nav-cta {
  background: var(--gradient-main) !important;
  color: #fff !important;
  padding: 0.5rem 1.25rem !important;
  border-radius: var(--radius-sm);
  font-weight: 600 !important;
  box-shadow: 0 0 20px rgba(79,142,247,0.3);
  transition: var(--transition) !important;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(79,142,247,0.5) !important;
}

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

/* Mobile Nav Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ============================================================
   UTILITY CLASSES
   ============================================================ */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 6rem 0;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--cyan);
  margin-bottom: 1rem;
}

.section-label::before {
  content: '';
  display: block;
  width: 24px; height: 2px;
  background: var(--gradient-main);
  border-radius: 2px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.7;
}

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

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  cursor: pointer;
}

.btn-primary {
  background: var(--gradient-main);
  color: #fff;
  box-shadow: 0 0 25px rgba(79,142,247,0.35);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 40px rgba(79,142,247,0.55);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-blue);
}

.btn-outline:hover {
  background: rgba(79,142,247,0.1);
  border-color: var(--blue);
  transform: translateY(-3px);
}

/* ---- Cards ---- */
.glass-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: var(--transition);
}

.glass-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-blue);
  box-shadow: var(--shadow-blue);
  transform: translateY(-4px);
}

/* ---- Badge ---- */
.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-android  { background: rgba(16,185,129,0.15); color: #10B981; border: 1px solid rgba(16,185,129,0.3); }
.badge-website  { background: rgba(79,142,247,0.15); color: var(--blue); border: 1px solid var(--border-blue); }
.badge-desktop  { background: rgba(139,92,246,0.15); color: var(--purple); border: 1px solid rgba(139,92,246,0.3); }
.badge-other    { background: rgba(0,212,255,0.15); color: var(--cyan); border: 1px solid rgba(0,212,255,0.3); }

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: var(--gradient-hero);
  z-index: 0;
}

/* Animated background grid */
.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(79,142,247,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79,142,247,0.05) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
  0%   { transform: translateY(0); }
  100% { transform: translateY(60px); }
}

/* Orbs / glow blobs */
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.25;
  animation: orbFloat 8s ease-in-out infinite;
}

.orb-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, #4F8EF7, transparent);
  top: -200px; left: -100px;
  animation-delay: 0s;
}

.orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, #00D4FF, transparent);
  bottom: -100px; right: -50px;
  animation-delay: -4s;
}

.orb-3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, #8B5CF6, transparent);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  animation-delay: -2s;
}

@keyframes orbFloat {
  0%, 100% { transform: translateY(0) scale(1); }
  50%       { transform: translateY(-30px) scale(1.05); }
}

.hero-content {
  position: relative;
  z-index: 1;
  width: 100%;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(79,142,247,0.1);
  border: 1px solid var(--border-blue);
  border-radius: 50px;
  padding: 0.4rem 1rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--cyan);
  margin-bottom: 1.5rem;
}

.hero-tag .dot {
  width: 8px; height: 8px;
  background: var(--green);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.6; transform: scale(1.3); }
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 7vw, 5rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.hero-title .line-2 {
  display: block;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--text-secondary);
  max-width: 540px;
  line-height: 1.8;
  margin-bottom: 2.5rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3.5rem;
}

.hero-stats {
  display: flex;
  gap: 3rem;
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* Floating code card */
.hero-visual {
  position: absolute;
  right: 5%;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  pointer-events: none;
}

.code-card {
  background: rgba(15, 21, 38, 0.8);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  backdrop-filter: blur(20px);
  animation: floatCard 6s ease-in-out infinite;
  min-width: 260px;
}

.code-card:nth-child(2) { animation-delay: -3s; margin-left: 2rem; }
.code-card:nth-child(3) { animation-delay: -1s; margin-left: 1rem; }

@keyframes floatCard {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-12px); }
}

.code-card-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.code-dot { width: 10px; height: 10px; border-radius: 50%; }
.code-dot.red    { background: #FF5F57; }
.code-dot.yellow { background: #FEBC2E; }
.code-dot.green  { background: #28C840; }

.code-text {
  font-family: 'Courier New', monospace;
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.code-text .kw  { color: var(--blue); }
.code-text .fn  { color: var(--cyan); }
.code-text .str { color: #A8FF78; }
.code-text .cm  { color: #4B5563; }

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  animation: bounceDown 2s ease-in-out infinite;
}

.scroll-indicator span {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.scroll-mouse {
  width: 24px; height: 38px;
  border: 2px solid var(--border-blue);
  border-radius: 12px;
  display: flex;
  justify-content: center;
  padding-top: 6px;
}

.scroll-mouse::before {
  content: '';
  width: 4px; height: 8px;
  background: var(--blue);
  border-radius: 2px;
  animation: scrollDot 2s ease-in-out infinite;
}

@keyframes scrollDot {
  0%, 100% { transform: translateY(0); opacity: 1; }
  50%       { transform: translateY(6px); opacity: 0.3; }
}

@keyframes bounceDown {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(8px); }
}

/* ============================================================
   SERVICES SECTION
   ============================================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}

.service-card {
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient-main);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}

.service-card:hover::before { transform: scaleX(1); }

.service-icon {
  width: 64px; height: 64px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
}

.service-icon.android { background: rgba(16,185,129,0.15); }
.service-icon.web     { background: rgba(79,142,247,0.15); }
.service-icon.desktop { background: rgba(139,92,246,0.15); }

.service-title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.service-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.service-tag {
  padding: 0.25rem 0.6rem;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ============================================================
   FEATURED PROJECTS SECTION
   ============================================================ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}

.project-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
}

.project-card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background: linear-gradient(135deg, #0F1526, #1a2040);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  position: relative;
  overflow: hidden;
}

.project-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-card-img-placeholder {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, #0D1530 0%, #162040 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
  position: relative;
  overflow: hidden;
}

.project-card-img-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-card);
}

.project-card-body {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-card-category {
  margin-bottom: 0.75rem;
}

.project-card-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.project-card-desc {
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.6;
  flex: 1;
  margin-bottom: 1.25rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.project-card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--blue);
  font-size: 0.85rem;
  font-weight: 600;
  transition: var(--transition);
}

.project-card-link:hover {
  color: var(--cyan);
  gap: 0.7rem;
}

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 5rem 2rem;
}

.empty-state .empty-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
  opacity: 0.4;
}

.empty-state p {
  color: var(--text-muted);
  font-size: 1rem;
}

/* ============================================================
   SECTION HEADER WITH ACTION
   ============================================================ */
.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

/* ============================================================
   ABOUT PAGE — HERO
   ============================================================ */
.page-hero {
  padding-top: calc(var(--nav-height) + 5rem);
  padding-bottom: 5rem;
  position: relative;
  overflow: hidden;
}

.page-hero-bg {
  position: absolute;
  inset: 0;
  background: var(--gradient-hero);
}

.page-hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(79,142,247,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79,142,247,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}

.about-hero-grid {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.about-hero-content .hero-tag { margin-bottom: 1.5rem; }

.about-hero-content h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 1.25rem;
}

.about-hero-content p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 2rem;
}

.about-profile-card {
  position: relative;
}

.about-profile-card img {
  width: 100%;
  border-radius: var(--radius-xl);
  border: 2px solid var(--border-blue);
  box-shadow: var(--shadow-glow);
}

.profile-badge {
  position: absolute;
  background: var(--gradient-main);
  border-radius: var(--radius-md);
  padding: 0.75rem 1.25rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.85rem;
  color: #fff;
  box-shadow: 0 8px 24px rgba(79,142,247,0.4);
}

.profile-badge.top-right {
  top: -1rem; right: -1rem;
}

.profile-badge.bottom-left {
  bottom: -1rem; left: -1rem;
}

/* Skills section */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.skill-group h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  color: var(--text-primary);
}

.skill-item {
  margin-bottom: 1rem;
}

.skill-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  margin-bottom: 0.4rem;
  color: var(--text-secondary);
}

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

.skill-fill {
  height: 100%;
  background: var(--gradient-main);
  border-radius: 3px;
  width: 0%;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Timeline */
.timeline {
  position: relative;
  margin-top: 3rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 0; bottom: 0;
  width: 2px;
  background: var(--border);
}

.timeline-item {
  position: relative;
  padding-left: 60px;
  margin-bottom: 2.5rem;
}

.timeline-dot {
  position: absolute;
  left: 11px;
  top: 4px;
  width: 20px; height: 20px;
  background: var(--gradient-main);
  border-radius: 50%;
  border: 3px solid var(--bg-primary);
  box-shadow: 0 0 12px rgba(79,142,247,0.5);
}

.timeline-date {
  font-size: 0.8rem;
  color: var(--cyan);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.timeline-title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.timeline-desc {
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.6;
}

/* Tech stack grid */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.tech-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 1.25rem 0.75rem;
  border-radius: var(--radius-md);
  text-align: center;
  transition: var(--transition);
}

.tech-item:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-blue);
  transform: translateY(-4px);
}

.tech-icon {
  font-size: 2rem;
  line-height: 1;
}

.tech-name {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ============================================================
   PROJECTS FILTER PAGE
   ============================================================ */
.filter-bar {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.filter-btn {
  padding: 0.5rem 1.25rem;
  border-radius: 50px;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  background: transparent;
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--gradient-main);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 0 20px rgba(79,142,247,0.3);
}

/* ============================================================
   CONTACT PAGE
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 4rem;
  margin-top: 3rem;
}

.contact-info h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.contact-info p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.contact-detail {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  border-radius: var(--radius-md);
  margin-bottom: 0.75rem;
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: var(--transition);
}

.contact-detail:hover {
  border-color: var(--border-blue);
  background: var(--bg-card-hover);
}

.contact-detail-icon {
  width: 44px; height: 44px;
  background: var(--gradient-main);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-detail-text span {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.15rem;
}

.contact-detail-text p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-primary);
  font-weight: 500;
}

/* Contact Form */
.contact-form {
  padding: 2.5rem;
  border-radius: var(--radius-xl);
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.8rem 1rem;
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: var(--transition);
  outline: none;
  width: 100%;
}

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

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--blue);
  background: rgba(79,142,247,0.06);
  box-shadow: 0 0 0 3px rgba(79,142,247,0.1);
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%234F8EF7' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14L2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

.form-group select option { background: #0F1526; color: var(--text-primary); }

.form-group textarea {
  resize: vertical;
  min-height: 130px;
}

.form-error {
  font-size: 0.78rem;
  color: #FF5F57;
  margin-top: 0.25rem;
  display: none;
}

.form-group.error input,
.form-group.error textarea,
.form-group.error select {
  border-color: #FF5F57;
}

.form-group.error .form-error { display: block; }

/* Form Submit Button */
.btn-submit {
  width: 100%;
  padding: 1rem;
  font-size: 1rem;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.btn-submit .btn-text { transition: var(--transition); }

.btn-submit .btn-spinner {
  display: none;
  width: 20px; height: 20px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.btn-submit.loading .btn-text { opacity: 0; }
.btn-submit.loading .btn-spinner { display: block; position: absolute; }

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

/* Alert messages */
.form-alert {
  display: none;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  margin-top: 1rem;
  align-items: center;
  gap: 0.5rem;
}

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

.form-alert.success {
  background: rgba(16,185,129,0.1);
  border: 1px solid rgba(16,185,129,0.3);
  color: #10B981;
}

.form-alert.error-alert {
  background: rgba(255,95,87,0.1);
  border: 1px solid rgba(255,95,87,0.3);
  color: #FF5F57;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  margin: 1rem 0 1.5rem;
  max-width: 320px;
}

.social-links {
  display: flex;
  gap: 0.75rem;
}

.social-link {
  width: 38px; height: 38px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: var(--transition);
  text-decoration: none;
}

.social-link:hover {
  background: var(--blue);
  border-color: var(--blue);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(79,142,247,0.3);
}

.footer-col h4 {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
}

.footer-col ul li { margin-bottom: 0.6rem; }

.footer-col ul li a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-col ul li a:hover { color: var(--blue); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

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

/* ============================================================
   SCROLL REVEAL ANIMATIONS
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* Particle canvas */
#particles-canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* ============================================================
   PARALLAX WRAPPER
   ============================================================ */
.parallax-layer {
  will-change: transform;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .hero-visual { display: none; }
  .about-hero-grid { grid-template-columns: 1fr; }
  .about-profile-card { max-width: 340px; margin: 0 auto; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .section { padding: 4rem 0; }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0; right: 0;
    background: rgba(10,14,26,0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 2rem;
    gap: 1.25rem;
    border-bottom: 1px solid var(--border);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav-toggle { display: flex; }

  .hero-title { font-size: clamp(2rem, 8vw, 3rem); }

  .hero-stats { gap: 1.5rem; }

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

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

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

  .section-header { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .container { padding: 0 1.25rem; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .services-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
}