/* ================================================
   DARYLL GOMAS — PORTFOLIO
   Futuristic Immersive Design System
   ================================================ */

/* ------------------------------------------------
   CUSTOM PROPERTIES
   ------------------------------------------------ */
:root {
  /* Colors */
  --bg-void:          #07070c;
  --bg-primary:       #0a0a0f;
  --bg-elevated:      #0f0f18;
  --bg-surface:       #141420;
  --bg-glass:         rgba(15, 15, 24, 0.7);

  --accent-cyan:      #00d4ff;
  --accent-cyan-dim:  rgba(0, 212, 255, 0.2);
  --accent-cyan-faint:rgba(0, 212, 255, 0.06);
  --accent-violet:    #7b2ff2;
  --accent-violet-dim:rgba(123, 47, 242, 0.2);
  --accent-gradient:  linear-gradient(135deg, var(--accent-cyan), var(--accent-violet));

  --text-primary:     #e8e8f0;
  --text-secondary:   #8888a0;
  --text-muted:       #555570;
  --text-accent:      var(--accent-cyan);

  --border-subtle:    rgba(136, 136, 160, 0.08);
  --border-glow:      rgba(0, 212, 255, 0.15);

  /* Typography */
  --font-display:     'Space Grotesk', system-ui, sans-serif;
  --font-body:        'Inter', system-ui, sans-serif;

  --size-xs:    0.75rem;
  --size-sm:    0.875rem;
  --size-base:  1rem;
  --size-lg:    1.125rem;
  --size-xl:    1.5rem;
  --size-2xl:   2rem;
  --size-3xl:   3rem;
  --size-hero:  clamp(3rem, 8vw, 7rem);

  /* Spacing */
  --space-xs:   0.5rem;
  --space-sm:   1rem;
  --space-md:   1.5rem;
  --space-lg:   2.5rem;
  --space-xl:   4rem;
  --space-2xl:  6rem;
  --space-section: clamp(5rem, 12vh, 10rem);

  /* Layout */
  --content-max:    1200px;
  --content-narrow: 800px;
  --nav-height:     60px;

  /* Effects */
  --blur-glass:     16px;
  --blur-glow:      40px;
  --transition-fast:    150ms ease;
  --transition-base:    300ms ease;
  --transition-slow:    600ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-reveal:  800ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Z-index */
  --z-base:    1;
  --z-nav:     100;
  --z-overlay: 200;
}


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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: var(--size-base);
  line-height: 1.7;
  color: var(--text-primary);
  background-color: var(--bg-void);
  overflow-x: hidden;
}

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

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

a:hover {
  color: #fff;
}

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


/* ------------------------------------------------
   ATMOSPHERE LAYERS
   ------------------------------------------------ */

/* Layer 1: Ambient gradient — slow breathing color wash */
.ambient-bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(ellipse 80% 50% at 20% 40%, var(--accent-cyan-dim), transparent),
    radial-gradient(ellipse 60% 40% at 80% 60%, var(--accent-violet-dim), transparent),
    var(--bg-void);
  animation: ambientShift 25s ease-in-out infinite alternate;
}

@keyframes ambientShift {
  0%   { opacity: 1; filter: hue-rotate(0deg); }
  50%  { opacity: 0.8; }
  100% { opacity: 1; filter: hue-rotate(10deg); }
}

/* Layer 2: Scanline overlay — subliminal depth texture */
.noise-overlay {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.03;
  background-image:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 2px,
      rgba(255, 255, 255, 0.03) 2px,
      rgba(255, 255, 255, 0.03) 4px
    );
}

/* Layer 3: Cursor glow — injected by JS */
.cursor-glow {
  position: fixed;
  top: -200px;
  left: -200px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(
    circle at center,
    var(--accent-cyan-faint),
    transparent 70%
  );
  pointer-events: none;
  z-index: 0;
  will-change: transform;
}


/* ------------------------------------------------
   SCROLL REVEAL SYSTEM
   ------------------------------------------------ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity var(--transition-reveal),
    transform var(--transition-reveal);
}

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

.reveal-stagger > .reveal {
  transition-delay: var(--reveal-delay, 0ms);
}


/* ------------------------------------------------
   DIGITAL MANDALA
   ------------------------------------------------ */
.mandala {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  z-index: 0;
}

.mandala-svg {
  width: min(90vw, 90vh, 700px);
  height: min(90vw, 90vh, 700px);
  opacity: 0;
  animation: mandalaFadeIn 3s ease 1s forwards;
  filter: drop-shadow(0 0 40px rgba(0, 212, 255, 0.08));
}

@keyframes mandalaFadeIn {
  to { opacity: 1; }
}

/* Rings */
.mandala-ring {
  fill: none;
  stroke: var(--accent-cyan);
  stroke-width: 0.6;
  opacity: 0.18;
}

.mandala-ring--dashed {
  stroke-dasharray: 8 6;
  opacity: 0.14;
}

.mandala-ring--dotted {
  stroke-dasharray: 1.5 8;
  opacity: 0.2;
}

/* Petals — outer ellipses get a faint fill so they catch light */
.mandala-petal {
  fill: rgba(0, 212, 255, 0.015);
  stroke: var(--accent-cyan);
  stroke-width: 0.5;
  opacity: 0.14;
}

/* Inner lotus petals — violet fill, slightly warmer */
.mandala-lotus .mandala-petal {
  fill: rgba(123, 47, 242, 0.03);
  stroke: var(--accent-violet);
  stroke-width: 0.5;
  opacity: 0.2;
}

/* Dots */
.mandala-dots,
.mandala-dots circle {
  fill: var(--accent-cyan);
  opacity: 0.3;
}

/* Center glow — brighter, with bloom */
.mandala-center {
  fill: var(--accent-cyan);
  opacity: 0.6;
  filter: blur(3px);
}

/* Layer rotations — each at its own speed and direction */
.mandala-layer {
  transform-origin: 400px 400px;
}

.mandala-layer-1 {
  animation: mandalaRotate 120s linear infinite;
}

.mandala-layer-2 {
  animation: mandalaRotateReverse 90s linear infinite;
}

.mandala-layer-3 {
  animation: mandalaRotate 60s linear infinite;
}

.mandala-layer-4 {
  animation: mandalaPulse 8s ease-in-out infinite;
}

/* Violet tint on inner ring for depth */
.mandala-layer-3 .mandala-ring {
  stroke: var(--accent-violet);
  opacity: 0.1;
}

.mandala-layer-4 .mandala-ring {
  stroke: var(--accent-violet);
  opacity: 0.1;
}

.mandala-layer-4 .mandala-dots {
  fill: var(--accent-violet);
}

@keyframes mandalaRotate {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

@keyframes mandalaRotateReverse {
  from { transform: rotate(0deg); }
  to   { transform: rotate(-360deg); }
}

@keyframes mandalaPulse {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50%      { opacity: 1; transform: scale(1.03); }
}


/* ------------------------------------------------
   SHARED SECTION STYLES
   ------------------------------------------------ */
.section {
  padding: var(--space-section) 0;
  position: relative;
}

.container {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section-label {
  font-family: var(--font-display);
  font-size: var(--size-xs);
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--text-accent);
  display: inline-block;
  margin-bottom: var(--space-sm);
}

.section-heading {
  font-family: var(--font-display);
  font-size: var(--size-3xl);
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: var(--space-lg);
}


/* ------------------------------------------------
   NAVIGATION — HUD STYLE
   ------------------------------------------------ */
.nav-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: var(--z-nav);
  transition: background var(--transition-base), border-color var(--transition-base);
  border-bottom: 1px solid transparent;
}

.nav-header.scrolled {
  background: var(--bg-glass);
  backdrop-filter: blur(var(--blur-glass));
  -webkit-backdrop-filter: blur(var(--blur-glass));
  border-bottom-color: var(--border-subtle);
}

.nav-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: var(--size-xl);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.05em;
}

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

.nav-links {
  list-style: none;
  display: flex;
  gap: var(--space-md);
}

.nav-links a {
  font-family: var(--font-display);
  font-size: var(--size-xs);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-secondary);
  padding: var(--space-xs) 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--accent-cyan);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-base);
}

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

.nav-links a:hover::after,
.nav-links a.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* Mobile hamburger */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 30px;
  height: 20px;
  position: relative;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--text-primary);
  position: absolute;
  left: 0;
  transition: var(--transition-base);
}

.nav-toggle span:nth-child(1) { top: 0; }
.nav-toggle span:nth-child(2) { top: 50%; transform: translateY(-50%); }
.nav-toggle span:nth-child(3) { bottom: 0; }

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  top: 50%; transform: translateY(-50%) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  bottom: 50%; transform: translateY(50%) rotate(-45deg);
}


/* ------------------------------------------------
   HERO
   ------------------------------------------------ */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-xl);
  position: relative;
  overflow: hidden;
}

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

.hero-greeting {
  font-family: var(--font-display);
  font-size: var(--size-sm);
  text-transform: uppercase;
  letter-spacing: 0.4em;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
  opacity: 0;
  animation: fadeInUp 1s ease 0.2s forwards;
}

.hero-name {
  font-family: var(--font-display);
  font-size: var(--size-hero);
  font-weight: 700;
  line-height: 1.05;
  color: var(--text-primary);
  opacity: 0;
  animation: fadeInUp 1s ease 0.5s forwards;
  background: linear-gradient(
    135deg,
    var(--text-primary) 0%,
    var(--accent-cyan) 50%,
    var(--text-primary) 100%
  );
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-name.shimmer {
  animation:
    fadeInUp 1s ease 0.5s forwards,
    gradientText 8s ease-in-out 1.5s infinite;
}

@keyframes gradientText {
  0%, 100% { background-position: 0% center; }
  50%      { background-position: 200% center; }
}

.hero-title {
  font-family: var(--font-display);
  font-size: var(--size-lg);
  font-weight: 400;
  color: var(--text-secondary);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-top: var(--space-sm);
  opacity: 0;
  animation: fadeInUp 1s ease 0.8s forwards;
}

.hero-line {
  width: 60px;
  height: 1px;
  background: var(--accent-gradient);
  margin: var(--space-lg) auto 0;
  opacity: 0;
  animation: fadeInUp 1s ease 1.1s forwards;
}

.hero-line.breathing {
  animation:
    fadeInUp 1s ease 1.1s forwards,
    lineBreath 4s ease-in-out 2s infinite;
}

@keyframes lineBreath {
  0%, 100% { width: 60px; opacity: 0.6; }
  50%      { width: 120px; opacity: 1; }
}

/* Scroll indicator */
.hero-scroll-indicator {
  position: absolute;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  animation: fadeInUp 1s ease 1.5s forwards;
  opacity: 0;
}

.hero-scroll-indicator span {
  display: block;
  width: 1px;
  height: 40px;
  background: var(--accent-gradient);
  position: relative;
}

.hero-scroll-indicator span::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: -3px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-cyan);
  animation: scrollDot 2s ease-in-out infinite;
}

@keyframes scrollDot {
  0%   { transform: translateY(-30px); opacity: 0; }
  50%  { opacity: 1; }
  100% { transform: translateY(0); opacity: 0; }
}

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


/* ------------------------------------------------
   ABOUT
   ------------------------------------------------ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-2xl);
  align-items: center;
}

.about-image-frame {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border-glow);
}

.about-image-frame img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  display: block;
}

.image-glow {
  position: absolute;
  inset: -20%;
  background: radial-gradient(
    circle at center,
    var(--accent-cyan-dim),
    transparent 70%
  );
  z-index: -1;
  filter: blur(var(--blur-glow));
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.about-text p:first-of-type {
  color: var(--text-primary);
}


/* ------------------------------------------------
   PASSIONS
   ------------------------------------------------ */
.passions-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

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

.passion-card {
  background: var(--bg-glass);
  backdrop-filter: blur(var(--blur-glass));
  -webkit-backdrop-filter: blur(var(--blur-glass));
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-base);
}

.passion-card:hover {
  border-color: var(--border-glow);
  box-shadow: 0 0 30px -10px var(--accent-cyan-dim);
  transform: translateY(-4px);
}

.passion-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--space-md);
  color: var(--accent-cyan);
}

.passion-icon svg {
  width: 100%;
  height: 100%;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.5;
}

.passion-card h3 {
  font-family: var(--font-display);
  font-size: var(--size-lg);
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.passion-card p {
  color: var(--text-secondary);
  font-size: var(--size-sm);
  line-height: 1.8;
}


/* ------------------------------------------------
   SKILLS — SVG RINGS
   ------------------------------------------------ */
.skills-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.skills-intro {
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  max-width: var(--content-narrow);
  margin: 0 auto;
}

.skill-item {
  text-align: center;
  position: relative;
  cursor: pointer;
  padding: var(--space-md);
  border-radius: 12px;
  border: 1px solid transparent;
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-base),
    background var(--transition-base);
}

.skill-item:hover {
  border-color: var(--border-glow);
  background: var(--bg-glass);
  box-shadow:
    0 0 30px -5px var(--accent-cyan-dim),
    0 0 60px -10px rgba(0, 212, 255, 0.08);
  transform: translateY(-4px);
}

.skill-item:hover .skill-name {
  color: var(--accent-cyan);
}

.skill-ring {
  width: 120px;
  height: 120px;
  margin: 0 auto;
  transform: rotate(-90deg);
}

.skill-ring-bg {
  fill: none;
  stroke: var(--bg-surface);
  stroke-width: 4;
}

.skill-ring-fill {
  fill: none;
  stroke: url(#skillGradient);
  stroke-width: 4;
  stroke-linecap: round;
  stroke-dasharray: 339.29;
  stroke-dashoffset: 339.29;
  transition: stroke-dashoffset 1.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.skill-item.is-visible .skill-ring-fill {
  stroke-dashoffset: calc(339.29 - (339.29 * var(--skill-pct) / 100));
}

.skill-label {
  margin-top: var(--space-sm);
}

.skill-value {
  font-family: var(--font-display);
  font-size: var(--size-xl);
  font-weight: 600;
  color: var(--text-primary);
  display: block;
}

.skill-name {
  font-family: var(--font-display);
  font-size: var(--size-xs);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  display: block;
  margin-top: 2px;
}


/* ------------------------------------------------
   ACHIEVEMENTS
   ------------------------------------------------ */
.certs-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.certs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.cert-card {
  background: var(--bg-glass);
  backdrop-filter: blur(var(--blur-glass));
  -webkit-backdrop-filter: blur(var(--blur-glass));
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: var(--space-md);
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1;
  cursor: pointer;
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-base);
}

.cert-card:hover {
  border-color: var(--border-glow);
  box-shadow: 0 0 20px -8px var(--accent-cyan-dim);
  transform: translateY(-4px);
}

.cert-card img {
  max-width: 90%;
  max-height: 90%;
  object-fit: contain;
  border-radius: 4px;
}

/* Certificate Image Modal */
.cert-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  background: rgba(4, 4, 8, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.cert-modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.cert-modal-img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: 8px;
  border: 1px solid var(--border-subtle);
  box-shadow: 0 0 40px -10px var(--accent-cyan-dim);
  transform: scale(0.9);
  transition: transform 0.3s ease;
}

.cert-modal-overlay.active .cert-modal-img {
  transform: scale(1);
}

.cert-modal-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  background: none;
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-size: 2rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition-base), color var(--transition-base);
  z-index: 1;
}

.cert-modal-close:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}


/* ------------------------------------------------
   PROJECTS / LABS — ACCORDION
   ------------------------------------------------ */
.projects-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.projects-accordion {
  max-width: var(--content-narrow);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.project-category {
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  overflow: hidden;
  transition: border-color var(--transition-base);
}

.project-category[open] {
  border-color: var(--border-glow);
}

.project-category summary {
  padding: var(--space-md) var(--space-lg);
  font-family: var(--font-display);
  font-size: var(--size-lg);
  font-weight: 500;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  list-style: none;
  user-select: none;
  transition: background var(--transition-base);
}

.project-category summary::-webkit-details-marker { display: none; }

.project-category summary:hover {
  background: var(--bg-elevated);
}

/* Animated +/- marker */
.category-marker {
  display: inline-block;
  width: 12px;
  height: 1px;
  background: var(--accent-cyan);
  position: relative;
  flex-shrink: 0;
}

.category-marker::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 12px;
  height: 1px;
  background: var(--accent-cyan);
  transform: translate(-50%, -50%) rotate(90deg);
  transition: transform var(--transition-base);
}

.project-category[open] .category-marker::after {
  transform: translate(-50%, -50%) rotate(0deg);
}

.project-links {
  padding: 0 var(--space-lg) var(--space-lg);
  list-style: none;
}

.project-links li {
  padding: var(--space-xs) 0;
  border-top: 1px solid var(--border-subtle);
}

.project-links li:first-child {
  border-top: none;
}

.project-links a {
  color: var(--text-secondary);
  font-size: var(--size-sm);
  transition: color var(--transition-fast);
  display: inline-block;
  padding: var(--space-xs) 0;
}

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

/* Nested sub-lists */
.project-links ul {
  list-style: none;
  padding-left: var(--space-md);
}

.project-links ul li {
  border-top: none;
}

.project-links ul a {
  font-size: var(--size-xs);
  color: var(--text-muted);
}

.project-links ul a::before {
  content: '\2192\00a0';
  color: var(--accent-violet);
}


/* ------------------------------------------------
   FOOTER / CONTACT
   ------------------------------------------------ */
.footer {
  border-top: 1px solid var(--border-subtle);
  text-align: center;
}

.footer-content {
  padding-bottom: var(--space-2xl);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--space-xl);
  margin-top: var(--space-lg);
  flex-wrap: wrap;
}

.footer-links a {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  color: var(--text-secondary);
  transition:
    color var(--transition-base),
    filter var(--transition-base);
}

.footer-links a:hover {
  color: var(--accent-cyan);
  filter: drop-shadow(0 0 8px var(--accent-cyan-dim));
}

.footer-links svg {
  width: 24px;
  height: 24px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.footer-links span {
  font-family: var(--font-display);
  font-size: var(--size-xs);
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

.footer-external {
  margin-top: var(--space-xl);
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.footer-divider {
  width: 1px;
  height: 16px;
  background: var(--text-muted);
}

.footer-external a {
  font-size: var(--size-sm);
  color: var(--text-muted);
}

.footer-external a:hover {
  color: var(--accent-cyan);
}

.footer-bottom {
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--border-subtle);
}

.footer-bottom p {
  font-size: var(--size-xs);
  color: var(--text-muted);
  letter-spacing: 0.1em;
}


/* ------------------------------------------------
   SKILL MODAL
   ------------------------------------------------ */
.skill-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  background: rgba(7, 7, 12, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.skill-modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.skill-modal {
  background: var(--bg-elevated);
  border: 1px solid var(--border-glow);
  border-radius: 12px;
  padding: var(--space-xl);
  max-width: 560px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  position: relative;
  transform: translateY(20px) scale(0.97);
  transition:
    transform var(--transition-slow),
    opacity var(--transition-slow);
  opacity: 0;
  box-shadow:
    0 0 60px -20px var(--accent-cyan-dim),
    0 0 120px -40px rgba(0, 212, 255, 0.06);
}

.skill-modal-overlay.active .skill-modal {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.skill-modal-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  background: none;
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  color: var(--text-muted);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: var(--size-lg);
  line-height: 1;
  transition:
    color var(--transition-fast),
    border-color var(--transition-fast);
}

.skill-modal-close:hover {
  color: var(--text-primary);
  border-color: var(--border-glow);
}

.skill-modal h3 {
  font-family: var(--font-display);
  font-size: var(--size-2xl);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.skill-modal-pct {
  font-family: var(--font-display);
  font-size: var(--size-sm);
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-lg);
  display: block;
}

.skill-modal p {
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  line-height: 1.8;
}

.skill-modal ul {
  list-style: none;
  margin-bottom: var(--space-md);
}

.skill-modal ul li {
  color: var(--text-secondary);
  font-size: var(--size-sm);
  padding: var(--space-xs) 0;
  padding-left: var(--space-md);
  position: relative;
}

.skill-modal ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 1px;
  background: var(--accent-cyan);
}

.skill-modal-tagline {
  font-family: var(--font-display);
  font-size: var(--size-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-subtle);
  font-style: italic;
}


/* ------------------------------------------------
   RESPONSIVE
   ------------------------------------------------ */
@media (max-width: 1024px) {
  .certs-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-toggle { display: block; }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    background: var(--bg-glass);
    backdrop-filter: blur(var(--blur-glass));
    -webkit-backdrop-filter: blur(var(--blur-glass));
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base);
  }

  .nav-links.open {
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links a {
    font-size: var(--size-lg);
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .about-image-frame {
    max-width: 300px;
    margin: 0 auto;
  }

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

  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }

  .certs-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .section-heading {
    font-size: var(--size-2xl);
  }

  .container {
    padding: 0 var(--space-md);
  }

  .footer-links {
    gap: var(--space-lg);
  }
}

@media (max-width: 480px) {
  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }

  .skill-ring {
    width: 100px;
    height: 100px;
  }

  .footer-links {
    flex-direction: column;
    gap: var(--space-md);
  }
}


/* ------------------------------------------------
   REDUCED MOTION
   ------------------------------------------------ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .ambient-bg { animation: none; }
  .cursor-glow { display: none; }
  html { scroll-behavior: auto; }

  .reveal {
    opacity: 1;
    transform: none;
  }
}