/* ==========================================================================
   Fiel Mark E. Oronos — Portfolio
   style.css
   Table of contents:
   1.  Reset
   2.  CSS Variables
   3.  Typography
   4.  Layout
   5.  Buttons
   6.  Navigation
   7.  Hero
   8.  About
   9.  Skills
   10. Tech Stack
   11. Services
   12. Projects
   13. Resume
   14. Certificates
   15. Achievements
   16. Testimonials
   17. Contact
   18. Footer
   19. Utility Classes
   20. Animations
   21. Media Queries
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

ul {
  list-style: none;
}

input,
textarea {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  outline: none;
}

::selection {
  background: var(--accent-primary);
  color: #fff;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-color);
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--accent-primary), var(--accent-secondary));
  border-radius: 10px;
  border: 2px solid var(--bg-color);
}
* {
  scrollbar-width: thin;
  scrollbar-color: var(--accent-secondary) var(--bg-color);
}

/* Focus states */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent-secondary);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  z-index: 9999;
  background: var(--accent-primary);
  color: #fff;
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  font-weight: 600;
  transition: top 0.25s ease;
}
.skip-link:focus {
  top: 1rem;
}

/* ==========================================================================
   2. CSS VARIABLES
   ========================================================================== */
:root {
  /* Colors */
  --bg-color: #08080f;
  --bg-alt: #0c0c16;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-strong: rgba(255, 255, 255, 0.07);
  --border-soft: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);

  --text-primary: #f4f4f8;
  --text-secondary: rgba(244, 244, 248, 0.68);
  --text-muted: rgba(244, 244, 248, 0.44);

  --accent-primary: #6366f1;
  --accent-secondary: #06b6d4;
  --accent-tertiary: #8b5cf6;
  --accent-green: #10b981;
  --accent-amber: #f59e0b;

  --gradient-aurora: linear-gradient(120deg, #6366f1, #06b6d4, #8b5cf6);
  --gradient-text: linear-gradient(120deg, #a5b4fc, #67e8f9);

  /* Fonts */
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-alt: 'Poppins', sans-serif;

  /* Fluid type scale */
  --fs-xs: clamp(0.75rem, 0.72rem + 0.15vw, 0.85rem);
  --fs-sm: clamp(0.875rem, 0.83rem + 0.2vw, 1rem);
  --fs-base: clamp(1rem, 0.96rem + 0.2vw, 1.125rem);
  --fs-md: clamp(1.15rem, 1.05rem + 0.4vw, 1.4rem);
  --fs-lg: clamp(1.4rem, 1.2rem + 1vw, 2rem);
  --fs-xl: clamp(2rem, 1.6rem + 2vw, 3.25rem);
  --fs-2xl: clamp(2.75rem, 2rem + 3.5vw, 5rem);

  /* Spacing */
  --space-3xs: clamp(0.25rem, 0.23rem + 0.1vw, 0.35rem);
  --space-2xs: clamp(0.5rem, 0.46rem + 0.2vw, 0.65rem);
  --space-xs: clamp(0.75rem, 0.68rem + 0.35vw, 1rem);
  --space-sm: clamp(1.1rem, 1rem + 0.5vw, 1.5rem);
  --space-md: clamp(1.75rem, 1.5rem + 1.2vw, 2.5rem);
  --space-lg: clamp(2.75rem, 2.2rem + 2.5vw, 4.5rem);
  --space-xl: clamp(4rem, 3rem + 4.5vw, 7.5rem);

  /* Layout */
  --container-w: 1200px;
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --header-h: 84px;

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-fast: 0.2s;
  --dur-med: 0.45s;
  --dur-slow: 0.9s;

  /* Shadows */
  --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.28);
  --shadow-md: 0 12px 40px rgba(0, 0, 0, 0.38);
  --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.25);
}

/* ==========================================================================
   3. TYPOGRAPHY
   ========================================================================== */
h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

p {
  color: var(--text-secondary);
  font-size: var(--fs-base);
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-alt);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-secondary);
  margin-bottom: var(--space-xs);
}
.section-eyebrow::before {
  content: '';
  width: 24px;
  height: 1.5px;
  background: var(--accent-secondary);
  display: inline-block;
}

.section-title {
  font-size: var(--fs-xl);
  margin-bottom: var(--space-lg);
  max-width: 20ch;
}

/* ==========================================================================
   4. LAYOUT
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

.section {
  position: relative;
  padding-block: var(--space-xl);
}

.section-alt {
  background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.015) 50%, transparent);
  position: relative;
}
.section-alt::before {
  content: '';
  position: absolute;
  inset: 0;
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
  pointer-events: none;
}

main {
  position: relative;
  z-index: 1;
}

/* Glass surface */
.glass {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  transition: border-color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}

/* Aurora backdrop canvas */
#aurora-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  opacity: 0.6;
}

/* Grain overlay */
.grain {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.045;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* Cursor glow */
.cursor-glow {
  position: fixed;
  top: 0;
  left: 0;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.14), transparent 70%);
  transform: translate(-50%, -50%);
  transition: opacity 0.3s ease;
  opacity: 0;
  will-change: transform;
}
.cursor-glow.active {
  opacity: 1;
}

@media (hover: none) {
  .cursor-glow {
    display: none;
  }
}

/* ==========================================================================
   5. BUTTONS
   ========================================================================== */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.95rem 2rem;
  font-family: var(--font-alt);
  font-size: var(--fs-sm);
  font-weight: 600;
  border-radius: 100px;
  overflow: hidden;
  isolation: isolate;
  transition: transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}

.btn span {
  position: relative;
  z-index: 1;
}

.btn-primary {
  background: var(--gradient-aurora);
  background-size: 200% 200%;
  color: #fff;
  box-shadow: var(--shadow-glow);
}
.btn-primary:hover {
  transform: translateY(-3px);
  background-position: 100% 50%;
  box-shadow: 0 12px 30px rgba(99, 102, 241, 0.4);
}

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
}
.btn-ghost:hover {
  border-color: var(--accent-secondary);
  background: rgba(6, 182, 212, 0.08);
  transform: translateY(-3px);
}

.btn-small {
  padding: 0.6rem 1.4rem;
  font-size: var(--fs-xs);
}

/* Ripple */
.btn .ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.45);
  transform: scale(0);
  animation: ripple-anim 0.6s var(--ease-out);
  pointer-events: none;
  z-index: 0;
}

/* Magnetic wrapper (JS applies transform) */
.magnetic {
  will-change: transform;
}

/* ==========================================================================
   6. NAVIGATION
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 500;
  height: var(--header-h);
  display: flex;
  align-items: center;
  transition: transform var(--dur-med) var(--ease-in-out), background var(--dur-med) ease, height var(--dur-med) ease, border-color var(--dur-med) ease;
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  height: calc(var(--header-h) - 20px);
  background: rgba(8, 8, 15, 0.72);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--border-soft);
}

.site-header.hide {
  transform: translateY(-100%);
}

.nav {
  width: 100%;
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-logo {
  margin-right: auto;
}

.logo-mark {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}
.logo-dot {
  color: var(--accent-secondary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-links a {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-secondary);
  padding-block: 0.4rem;
  transition: color var(--dur-fast) ease;
}

.nav-num {
  font-family: var(--font-alt);
  font-size: 0.7rem;
  color: var(--accent-secondary);
  opacity: 0.8;
}

.nav-links a::after {
  content: '';
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 0;
  height: 1.5px;
  background: var(--gradient-text);
  transition: right var(--dur-med) var(--ease-out);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
}
.nav-links a:hover::after,
.nav-links a.active::after {
  right: 0;
}

.nav-cta {
  display: inline-flex;
}

.hamburger {
  display: none;
  position: relative;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  z-index: 600;
}
.hamburger span {
  position: absolute;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--dur-fast) var(--ease-out), opacity var(--dur-fast) ease, background var(--dur-fast) ease;
}
.hamburger span:nth-child(1) {
  transform: translateY(-7px);
}
.hamburger span:nth-child(3) {
  transform: translateY(7px);
}
.hamburger.active span:nth-child(1) {
  transform: rotate(45deg);
}
.hamburger.active span:nth-child(2) {
  opacity: 0;
}
.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg);
}

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 450;
  background: rgba(8, 8, 15, 0.98);
  backdrop-filter: blur(24px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  transition: opacity var(--dur-med) var(--ease-out), transform var(--dur-med) var(--ease-out), visibility 0s linear var(--dur-med);
}

.mobile-menu.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition: opacity var(--dur-med) var(--ease-out), transform var(--dur-med) var(--ease-out), visibility 0s;
}

.mobile-menu ul {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

.mobile-menu a {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  font-weight: 600;
  color: var(--text-primary);
  display: inline-flex;
  align-items: baseline;
  gap: 0.75rem;
  opacity: 0.85;
  transition: opacity var(--dur-fast) ease, color var(--dur-fast) ease;
}
.mobile-menu a:hover {
  opacity: 1;
  color: var(--accent-secondary);
}
.mobile-menu a[data-index]::before {
  content: attr(data-index);
  font-family: var(--font-alt);
  font-size: 0.75rem;
  color: var(--accent-secondary);
}

.mobile-menu-socials {
  display: flex;
  gap: var(--space-sm);
}
.mobile-menu-socials a {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

body.menu-open {
  overflow: hidden;
}

/* ==========================================================================
   7. HERO
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-h);
  overflow: hidden;
}

.hero-shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  z-index: 0;
  opacity: 0.5;
  animation: blob-float 14s ease-in-out infinite;
}
.hero-shape-1 {
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.5), transparent 70%);
  top: -10%;
  left: -8%;
}
.hero-shape-2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.4), transparent 70%);
  bottom: -18%;
  right: -10%;
  animation-delay: -6s;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: var(--space-lg);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-alt);
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  border: 1px solid var(--border-soft);
  border-radius: 100px;
  margin-bottom: var(--space-md);
}

.eyebrow-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.6);
  animation: pulse-dot 2s infinite;
}

.hero-title {
  font-size: var(--fs-2xl);
  margin-bottom: var(--space-sm);
}

.hero-title > span {
  display: block;
}

.hero-name {
  background: var(--gradient-aurora);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: aurora-shift 8s ease infinite;
}

.hero-role {
  font-family: var(--font-alt);
  font-size: var(--fs-md);
  font-weight: 500;
  color: var(--accent-secondary);
  margin-bottom: var(--space-sm);
  min-height: 1.6em;
}

.type-cursor {
  color: var(--accent-secondary);
  animation: blink-caret 0.9s step-end infinite;
}

.hero-summary {
  max-width: 46ch;
  font-size: var(--fs-base);
  margin-bottom: var(--space-md);
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: var(--space-md);
}

.hero-socials {
  display: flex;
  gap: 0.9rem;
}
.hero-socials a {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-soft);
  border-radius: 50%;
  font-size: var(--fs-xs);
  font-weight: 700;
  color: var(--text-secondary);
  transition: all var(--dur-fast) var(--ease-out);
}
.hero-socials a:hover {
  color: #fff;
  border-color: var(--accent-secondary);
  background: rgba(6, 182, 212, 0.12);
  transform: translateY(-4px);
}

.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.profile-ring {
  position: relative;
  width: min(360px, 80vw);
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.profile-orbit {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1.5px dashed var(--border-strong);
  animation: spin-slow 30s linear infinite;
}
.profile-orbit::before,
.profile-orbit::after {
  content: '';
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent-secondary);
  box-shadow: 0 0 12px var(--accent-secondary);
}
.profile-orbit::before {
  top: -5px;
  left: 50%;
}
.profile-orbit::after {
  bottom: -5px;
  left: 50%;
  background: var(--accent-tertiary);
  box-shadow: 0 0 12px var(--accent-tertiary);
}

.profile-card {
  width: 68%;
  aspect-ratio: 1;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  text-align: center;
  box-shadow: var(--shadow-md);
}

.profile-avatar {
  width: 114px;
  height: 114px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  background: var(--gradient-aurora);
  color: #fff;
}

.profile-caption {
  font-size: var(--fs-xs);
  color: var(--text-secondary);
}

.floating-chip {
  position: absolute;
  padding: 0.5rem 1rem;
  font-size: var(--fs-xs);
  font-weight: 600;
  font-family: var(--font-alt);
  border-radius: 100px;
  background: var(--surface-strong);
  border: 1px solid var(--border-strong);
  backdrop-filter: blur(10px);
  animation: float-chip 5s ease-in-out infinite;
  box-shadow: var(--shadow-sm);
}
.chip-1 {
  top: 6%;
  right: -4%;
  animation-delay: 0s;
}
.chip-2 {
  bottom: 14%;
  left: -8%;
  animation-delay: -1.6s;
}
.chip-3 {
  bottom: -4%;
  right: 12%;
  animation-delay: -3.2s;
}

.scroll-indicator {
  position: absolute;
  bottom: var(--space-md);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  z-index: 1;
}
.scroll-mouse {
  width: 24px;
  height: 38px;
  border: 1.5px solid var(--border-strong);
  border-radius: 100px;
  display: flex;
  justify-content: center;
  padding-top: 6px;
}
.scroll-dot {
  width: 4px;
  height: 8px;
  border-radius: 4px;
  background: var(--accent-secondary);
  animation: scroll-dot-move 1.6s ease infinite;
}
.scroll-label {
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ==========================================================================
   8. ABOUT
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: start;
}

.about-copy p {
  margin-bottom: var(--space-sm);
}

.about-mission {
  padding: var(--space-sm);
  margin-top: var(--space-sm);
}
.mission-label {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-secondary);
  margin-bottom: 0.5rem;
}
.mission-text {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--fs-md);
  color: var(--text-primary);
}

.about-timeline {
  position: relative;
  padding-left: var(--space-md);
  border-left: 1.5px solid var(--border-soft);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.timeline-item {
  position: relative;
}
.timeline-dot {
  position: absolute;
  left: calc(-1 * var(--space-md) - 5.5px);
  top: 6px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--bg-color);
  border: 2px solid var(--accent-secondary);
}
.timeline-year {
  font-family: var(--font-alt);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent-secondary);
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}
.timeline-title {
  font-family: var(--font-display);
  font-size: var(--fs-md);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}
.timeline-desc {
  font-size: var(--fs-sm);
}

/* ==========================================================================
   9. SKILLS
   ========================================================================== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
}

.skill-card {
  padding: var(--space-md);
  transform-style: preserve-3d;
  will-change: transform;
}
.skill-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
}
.skill-card h3 {
  font-size: var(--fs-md);
  margin-bottom: var(--space-sm);
}

.skill-bars {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}
.skill-bars li {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.skill-name {
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-secondary);
}
.bar {
  display: block;
  width: 100%;
  height: 6px;
  border-radius: 100px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}
.bar-fill {
  display: block;
  height: 100%;
  width: 0%;
  border-radius: 100px;
  background: var(--gradient-aurora);
  transition: width 1.4s var(--ease-out);
}

/* ==========================================================================
   10. TECH STACK
   ========================================================================== */
.tech-stack {
  margin-top: var(--space-lg);
  text-align: center;
}
.tech-stack-label {
  font-size: var(--fs-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}
.tech-icons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
}
.tech-icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  transition: color var(--dur-fast) ease, transform var(--dur-fast) var(--ease-out);
}
.tech-icon svg {
  width: 32px;
  height: 32px;
}
.tech-icon span {
  font-size: var(--fs-xs);
  font-weight: 500;
}
.tech-icon:hover {
  color: var(--accent-secondary);
  transform: translateY(-6px);
}

/* ==========================================================================
   11. SERVICES
   ========================================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
}

.service-card {
  padding: var(--space-md);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: var(--gradient-aurora);
  opacity: 0;
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  transition: opacity var(--dur-med) ease;
  pointer-events: none;
}
.service-card:hover::before {
  opacity: 1;
}
.service-card:hover {
  transform: translateY(-6px);
}

.service-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: rgba(99, 102, 241, 0.12);
  color: var(--accent-secondary);
  margin-bottom: var(--space-sm);
}
.service-icon svg {
  width: 24px;
  height: 24px;
}
.service-card h3 {
  font-size: var(--fs-md);
  margin-bottom: 0.6rem;
}
.service-card p {
  font-size: var(--fs-sm);
}

/* ==========================================================================
   12. PROJECTS
   ========================================================================== */
.project-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: var(--space-lg);
}
.filter-btn {
  padding: 0.6rem 1.4rem;
  font-family: var(--font-alt);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-secondary);
  border: 1px solid var(--border-soft);
  border-radius: 100px;
  transition: all var(--dur-fast) var(--ease-out);
}
.filter-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-strong);
}
.filter-btn.active {
  background: var(--gradient-aurora);
  color: #fff;
  border-color: transparent;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
}

.project-card {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transform-style: preserve-3d;
  will-change: transform;
  transition: transform var(--dur-fast) var(--ease-out), border-color var(--dur-fast) ease, box-shadow var(--dur-fast) ease;
}
.project-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
}

.project-card.is-hidden {
  display: none;
}

.project-thumb {
  position: relative;
  height: 170px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, color-mix(in srgb, var(--c1) 22%, transparent), color-mix(in srgb, var(--c2) 22%, transparent));
  border-bottom: 1px solid var(--border-soft);
  overflow: hidden;
}
.project-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 20%, color-mix(in srgb, var(--c1) 35%, transparent), transparent 60%);
}
.thumb-tag {
  position: absolute;
  top: 0.9rem;
  left: 0.9rem;
  font-size: var(--fs-xs);
  font-weight: 600;
  padding: 0.3rem 0.75rem;
  border-radius: 100px;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border-soft);
  z-index: 1;
}
.thumb-icon {
  width: 54px;
  height: 54px;
  color: var(--text-primary);
  opacity: 0.85;
  position: relative;
  z-index: 1;
  transition: transform var(--dur-med) var(--ease-out);
}
.project-card:hover .thumb-icon {
  transform: scale(1.1) rotate(-4deg);
}

.project-body {
  padding: var(--space-sm);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  flex: 1;
}
.project-body h3 {
  font-size: var(--fs-md);
}
.project-body p {
  font-size: var(--fs-sm);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.25rem;
}
.project-tags span {
  font-size: var(--fs-xs);
  padding: 0.25rem 0.65rem;
  border-radius: 100px;
  background: var(--surface-strong);
  color: var(--text-secondary);
}

.project-links {
  display: flex;
  gap: 0.75rem;
  margin-top: auto;
  padding-top: var(--space-xs);
}
.proj-btn {
  flex: 1;
  text-align: center;
  padding: 0.6rem 1rem;
  font-size: var(--fs-xs);
  font-weight: 600;
  border-radius: 100px;
  border: 1px solid var(--border-soft);
  color: var(--text-secondary);
  transition: all var(--dur-fast) ease;
}
.proj-btn:hover {
  border-color: var(--accent-secondary);
  color: var(--text-primary);
}
.proj-btn-fill {
  background: var(--gradient-aurora);
  color: #fff;
  border-color: transparent;
}
.proj-btn-fill:hover {
  filter: brightness(1.1);
}

/* ==========================================================================
   13. RESUME
   ========================================================================== */
.resume-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}
.resume-card {
  padding: var(--space-md);
}
.resume-card h3 {
  font-size: var(--fs-md);
  margin-bottom: var(--space-sm);
  color: var(--accent-secondary);
}
.resume-item-title {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--text-primary);
  font-size: var(--fs-base);
}
.resume-item-sub {
  font-size: var(--fs-sm);
  margin-top: 0.3rem;
}
.resume-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.resume-tags span {
  font-size: var(--fs-xs);
  padding: 0.3rem 0.7rem;
  border-radius: 100px;
  background: var(--surface-strong);
  color: var(--text-secondary);
}
.resume-download {
  display: flex;
  justify-content: center;
}

/* ==========================================================================
   14. CERTIFICATES
   ========================================================================== */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
}
.cert-card {
  padding: var(--space-md);
  position: relative;
  overflow: hidden;
}
.cert-ribbon {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.3rem 0.8rem;
  border-radius: 100px;
  background: rgba(139, 92, 246, 0.15);
  color: var(--accent-tertiary);
  margin-bottom: var(--space-sm);
}
.cert-card h3 {
  font-size: var(--fs-md);
  margin-bottom: 0.4rem;
}
.cert-sub {
  font-size: var(--fs-sm);
  font-style: italic;
}
.cert-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

/* ==========================================================================
   15. ACHIEVEMENTS
   ========================================================================== */
.counters-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-sm);
}
.counter-card {
  padding: var(--space-md);
  text-align: center;
}
.counter-num {
  font-family: var(--font-display);
  font-size: var(--fs-2xl);
  font-weight: 700;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
}
.counter-label {
  font-size: var(--fs-sm);
  margin-top: 0.5rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   16. TESTIMONIALS
   ========================================================================== */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
}
.testimonial-card {
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.testimonial-quote {
  font-family: var(--font-display);
  font-size: var(--fs-base);
  color: var(--text-primary);
  font-style: italic;
  line-height: 1.55;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-family: var(--font-display);
  background: var(--gradient-aurora);
  color: #fff;
  flex-shrink: 0;
}
.t-name {
  font-weight: 600;
  font-size: var(--fs-sm);
  color: var(--text-primary);
}
.t-role {
  font-size: var(--fs-xs);
  color: var(--text-muted);
}

/* ==========================================================================
   17. CONTACT
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: start;
}
.contact-desc {
  margin-block: var(--space-sm);
  max-width: 42ch;
}
.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}
.contact-info li {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.contact-label {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-secondary);
}
.contact-info a,
.contact-info span:not(.contact-label) {
  font-size: var(--fs-base);
  color: var(--text-primary);
  font-weight: 500;
}
.contact-info a:hover {
  color: var(--accent-secondary);
}
.contact-socials {
  display: flex;
  gap: 1rem;
}
.contact-socials a {
  font-size: var(--fs-sm);
  font-weight: 600;
  padding: 0.6rem 1.3rem;
  border-radius: 100px;
  border: 1px solid var(--border-soft);
  transition: all var(--dur-fast) ease;
}
.contact-socials a:hover {
  border-color: var(--accent-secondary);
  color: var(--accent-secondary);
}

.contact-form-wrap {
  padding: var(--space-md);
}
.form-row {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: var(--space-sm);
}
.form-row label {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}
.form-row input,
.form-row textarea {
  padding: 0.85rem 1rem;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
  transition: border-color var(--dur-fast) ease, background var(--dur-fast) ease;
  resize: vertical;
}
.form-row input::placeholder,
.form-row textarea::placeholder {
  color: var(--text-muted);
}
.form-row input:focus,
.form-row textarea:focus {
  border-color: var(--accent-secondary);
  background: rgba(6, 182, 212, 0.05);
}
.form-row.error input,
.form-row.error textarea {
  border-color: #f87171;
}
.field-error {
  font-size: var(--fs-xs);
  color: #f87171;
  margin-top: 0.3rem;
  display: none;
}
.form-row.error .field-error {
  display: block;
}

#cf-submit {
  width: 100%;
  margin-top: 0.5rem;
}

.form-status {
  font-size: var(--fs-sm);
  margin-top: var(--space-xs);
  min-height: 1.2em;
}
.form-status.success {
  color: var(--accent-green);
}
.form-status.error {
  color: #f87171;
}

/* ==========================================================================
   18. FOOTER
   ========================================================================== */
.site-footer {
  position: relative;
  padding-block: var(--space-lg) var(--space-md);
  border-top: 1px solid var(--border-soft);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--space-md);
  padding-bottom: var(--space-md);
}
.footer-tagline {
  margin-top: var(--space-xs);
  max-width: 32ch;
  font-size: var(--fs-sm);
}
.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  justify-self: center;
}
.footer-nav a {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  transition: color var(--dur-fast) ease;
  width: fit-content;
}
.footer-nav a:hover {
  color: var(--accent-secondary);
}
.footer-socials {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  justify-self: end;
}
.footer-socials a {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  transition: color var(--dur-fast) ease;
  width: fit-content;
}
.footer-socials a:hover {
  color: var(--accent-secondary);
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-soft);
  font-size: var(--fs-xs);
  color: var(--text-muted);
}
#backToTop {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  border: 1px solid var(--border-soft);
  border-radius: 100px;
  transition: all var(--dur-fast) var(--ease-out);
}
#backToTop:hover {
  color: var(--text-primary);
  border-color: var(--accent-secondary);
  transform: translateY(-3px);
}

/* ==========================================================================
   19. UTILITY CLASSES
   ========================================================================== */
.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.no-scroll {
  overflow: hidden;
}

/* ==========================================================================
   20. ANIMATIONS
   ========================================================================== */

/* Loader */
#loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-color);
  transition: opacity 0.6s var(--ease-out), visibility 0.6s var(--ease-out);
}
#loader.loaded {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.loader-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}
.loader-mark {
  overflow: visible;
}
.loader-ring {
  fill: none;
  stroke: var(--accent-secondary);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-dasharray: 264;
  stroke-dashoffset: 264;
  transform-origin: 50% 50%;
  animation: loader-spin 1.6s linear infinite, loader-dash 1.6s ease-in-out infinite;
}
.loader-letter {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  fill: var(--text-primary);
}
.loader-bar {
  width: 160px;
  height: 3px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 100px;
  overflow: hidden;
}
#loader-progress {
  display: block;
  height: 100%;
  width: 0%;
  background: var(--gradient-aurora);
  transition: width 0.3s ease;
}
.loader-text {
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  color: var(--text-muted);
}
.dots i {
  font-style: normal;
  animation: dot-fade 1.4s infinite;
}
.dots i:nth-child(2) {
  animation-delay: 0.2s;
}
.dots i:nth-child(3) {
  animation-delay: 0.4s;
}

/* Reveal animations */
.reveal-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s var(--ease-out) var(--d, 0s), transform 0.8s var(--ease-out) var(--d, 0s);
  will-change: transform, opacity;
}
.reveal-up.in-view {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal-up {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* Keyframes */
@keyframes ripple-anim {
  to {
    transform: scale(2.6);
    opacity: 0;
  }
}

@keyframes pulse-dot {
  0% {
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.55);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(16, 185, 129, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
  }
}

@keyframes aurora-shift {
  0%, 100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

@keyframes blink-caret {
  0%, 45% {
    opacity: 1;
  }
  46%, 100% {
    opacity: 0;
  }
}

@keyframes blob-float {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(30px, -20px) scale(1.08);
  }
  66% {
    transform: translate(-24px, 18px) scale(0.95);
  }
}

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

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

@keyframes scroll-dot-move {
  0% {
    transform: translateY(0);
    opacity: 1;
  }
  100% {
    transform: translateY(14px);
    opacity: 0;
  }
}

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

@keyframes loader-dash {
  0% {
    stroke-dashoffset: 264;
  }
  50% {
    stroke-dashoffset: 66;
  }
  100% {
    stroke-dashoffset: 264;
  }
}

@keyframes dot-fade {
  0%, 100% {
    opacity: 0.2;
  }
  50% {
    opacity: 1;
  }
}

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

/* Toast notification (created dynamically by JS) */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 9998;
  padding: 1rem 1.5rem;
  border-radius: var(--radius-sm);
  background: var(--surface-strong);
  border: 1px solid var(--border-strong);
  backdrop-filter: blur(16px);
  color: var(--text-primary);
  font-size: var(--fs-sm);
  font-weight: 500;
  box-shadow: var(--shadow-md);
  animation: toast-in 0.4s var(--ease-out);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.toast::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-green);
  flex-shrink: 0;
}
.toast.toast-error::before {
  background: #f87171;
}

/* ==========================================================================
   21. MEDIA QUERIES
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-copy {
    order: 2;
  }
  .hero-visual {
    order: 1;
    margin-bottom: var(--space-md);
  }
  .hero-cta,
  .hero-socials {
    justify-content: center;
  }
  .eyebrow {
    margin-inline: auto;
  }
  .services-grid,
  .resume-grid,
  .cert-grid,
  .testimonial-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .counters-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .footer-nav,
  .footer-socials {
    justify-self: center;
  }
}

@media (max-width: 900px) {
  .nav-links,
  .nav-cta {
    display: none;
  }
  .hamburger {
    display: flex;
  }
}

@media (max-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr;
  }
  .skills-grid {
    grid-template-columns: 1fr;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .services-grid,
  .resume-grid,
  .cert-grid,
  .testimonial-grid,
  .projects-grid,
  .counters-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-cta {
    flex-direction: column;
    width: 100%;
  }
  .hero-cta .btn {
    width: 100%;
  }
  .profile-ring {
    width: min(280px, 80vw);
  }
  .btn {
    padding: 0.85rem 1.5rem;
  }
}