/* ============================================================
   MUHAMMAD ISMAIL PORTFOLIO — MASTER STYLESHEET
   ============================================================ */

@import url("https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;600;700;800;900&family=Rajdhani:wght@300;400;500;600;700&family=DM+Sans:ital,wght@0,300;0,400;0,500;0,600;1,300&display=swap");

/* ── CSS VARIABLES ── */
:root {
  /* Dark mode (default) */
  --bg: #0a0a0a;
  --bg-sec: #111111;
  --bg-card: #141414;
  --bg-glass: rgba(20, 20, 20, 0.7);
  --accent: #dc2626;
  --accent-glow: rgba(220, 38, 38, 0.4);
  --accent-dim: rgba(220, 38, 38, 0.15);
  --text: #f5f5f5;
  --text-sub: #a0a0a0;
  --subtle: #6b7280;
  --border: rgba(255, 255, 255, 0.07);
  --border-accent: rgba(220, 38, 38, 0.3);
  --shadow: rgba(0, 0, 0, 0.5);
  --timeline-line: rgba(220, 38, 38, 0.3);

  --font-head: "Orbitron", sans-serif;
  --font-sub: "Rajdhani", sans-serif;
  --font-body: "DM Sans", sans-serif;

  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
  --bg: #f0f0f0;
  --bg-sec: #e8e8e8;
  --bg-card: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.8);
  --text: #111111;
  --text-sub: #444444;
  --subtle: #6b7280;
  --border: rgba(0, 0, 0, 0.08);
  --border-accent: rgba(220, 38, 38, 0.3);
  --shadow: rgba(0, 0, 0, 0.12);
  --timeline-line: rgba(220, 38, 38, 0.3);
}

/* ── RESET & BASE ── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  font-size: 16px;
}
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  cursor: none;
  transition:
    background var(--transition),
    color var(--transition);
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  max-width: 100%;
  display: block;
}
ul {
  list-style: none;
}
button {
  cursor: none;
  font-family: inherit;
}

/* ── CUSTOM CURSOR ── */
#cursor-dot {
  position: fixed;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 99999;
  transform: translate(-50%, -50%);
  transition:
    width 0.2s,
    height 0.2s,
    background 0.2s;
  mix-blend-mode: normal;
}
#cursor-ring {
  position: fixed;
  width: 32px;
  height: 32px;
  border: 2px solid rgba(220, 38, 38, 0.6);
  border-radius: 50%;
  pointer-events: none;
  z-index: 99998;
  transform: translate(-50%, -50%);
  transition:
    width 0.15s,
    height 0.15s,
    border-color 0.2s;
}
body:hover #cursor-dot {
  opacity: 1;
}
a:hover ~ #cursor-dot,
button:hover ~ #cursor-dot {
  width: 16px;
  height: 16px;
}

/* ── LOADING SCREEN ── */
#loader {
  position: fixed;
  inset: 0;
  background: #0a0a0a;
  z-index: 99997;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 20px;
}
.loader-monogram {
  font-family: var(--font-head);
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 900;
  color: var(--accent);
  letter-spacing: 0.15em;
  position: relative;
  animation: loaderPulse 1s ease-in-out infinite alternate;
}
.loader-monogram::after {
  content: "";
  position: absolute;
  inset: -20px;
  border: 2px solid var(--accent);
  border-radius: 4px;
  animation: loaderBorderDraw 1.5s ease forwards;
}
.loader-bar-wrap {
  width: 200px;
  height: 2px;
  background: rgba(220, 38, 38, 0.2);
  border-radius: 2px;
  overflow: hidden;
}
.loader-bar {
  height: 100%;
  background: var(--accent);
  width: 0;
  animation: loaderBar 1.8s ease forwards;
}
.loader-text {
  font-family: var(--font-sub);
  font-size: 0.85rem;
  letter-spacing: 0.3em;
  color: var(--subtle);
  text-transform: uppercase;
}
#loader.fade-out {
  animation: fadeOut 0.5s ease forwards;
}

/* ── NAVBAR ── */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 5%;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: var(--bg-glass);
  border-bottom: 1px solid var(--border);
  transition: all var(--transition);
}
#navbar.scrolled {
  height: 60px;
  background: rgba(10, 10, 10, 0.92);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}
[data-theme="light"] #navbar.scrolled {
  background: rgba(248, 248, 248, 0.92);
}
.nav-logo {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--accent);
  letter-spacing: 0.1em;
  position: relative;
}
.nav-logo::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform var(--transition);
}
.nav-logo:hover::after {
  transform: scaleX(1);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav-links a {
  font-family: var(--font-sub);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-sub);
  position: relative;
  transition: color var(--transition);
}
.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition);
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--accent);
}
.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}
#theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border-accent);
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  color: var(--accent);
  font-size: 1rem;
}
#theme-toggle:hover {
  background: var(--accent);
  color: white;
  box-shadow: 0 0 20px var(--accent-glow);
}
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 5px;
  background: none;
  border: none;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--transition);
}
.hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.open span:nth-child(2) {
  opacity: 0;
}
.hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── MOBILE NAV ── */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }
  .nav-links {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(10, 10, 10, 0.97);
    backdrop-filter: blur(20px);
    padding: 2rem;
    gap: 1.5rem;
    transform: translateY(-130%);
    transition: transform var(--transition);
    border-bottom: 1px solid var(--border);
  }
  .nav-links.open {
    transform: translateY(0);
  }
  [data-theme="light"] .nav-links {
    background: rgba(248, 248, 248, 0.97);
  }
  #hero {
    height: 185vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    padding: 0 5%;
    position: relative;
    overflow: hidden;
  }
}

/* ── SECTION COMMON ── */
section {
  padding: 100px 5%;
  position: relative;
}
.section-title {
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 700;
  color: var(--text);
  text-align: center;
  margin-bottom: 0.5rem;
  letter-spacing: 0.05em;
}
.section-title span {
  color: var(--accent);
}
.section-subtitle {
  font-family: var(--font-sub);
  font-size: 0.95rem;
  color: var(--subtle);
  text-align: center;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 3.5rem;
}
.section-line {
  width: 60px;
  height: 3px;
  background: var(--accent);
  margin: 0.75rem auto 1rem;
  border-radius: 2px;
  box-shadow: 0 0 10px var(--accent-glow);
}

/* ── HERO ── */
#hero {
  height: 120vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  padding: 0 5%;
  position: relative;
  overflow: hidden;
}
#particles-canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
  height: 600px;
  width: 600px;
}
.hero-content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 4rem;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 70px;
}
.hero-left {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  padding: 0.4rem 1rem;
  border-radius: 50px;
  font-family: var(--font-sub);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--accent);
  text-transform: uppercase;
  width: fit-content;
}
.hero-tag::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
.hero-name {
  font-family: var(--font-head);
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: 0.02em;
}
.hero-name .first {
  color: var(--text);
}
.hero-name .last {
  color: var(--accent);
}
.hero-typewriter {
  font-family: var(--font-sub);
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 600;
  color: var(--text-sub);
  letter-spacing: 0.05em;
  min-height: 2rem;
}
.typewriter-cursor {
  color: var(--accent);
  animation: blink 1s infinite;
}
.hero-tagline {
  font-size: 0.9rem;
  color: var(--subtle);
  font-family: var(--font-sub);
  letter-spacing: 0.08em;
  font-weight: 500;
}
.hero-intro {
  font-size: 1rem;
  color: var(--text-sub);
  line-height: 1.7;
  max-width: 520px;
}
.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0.75rem 2rem;
  background: var(--accent);
  color: white;
  font-family: var(--font-sub);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--radius);
  border: 2px solid var(--accent);
  transition: all var(--transition);
  box-shadow: 0 0 20px rgba(220, 38, 38, 0.3);
}
.btn-primary:hover {
  background: transparent;
  color: var(--accent);
  box-shadow: 0 0 40px rgba(220, 38, 38, 0.5);
  transform: translateY(-2px);
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0.75rem 2rem;
  background: transparent;
  color: var(--text);
  font-family: var(--font-sub);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--radius);
  border: 2px solid var(--border);
  transition: all var(--transition);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
.hero-socials {
  display: flex;
  gap: 1rem;
  margin-top: 0.5rem;
}
.hero-socials a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--text-sub);
  transition: all var(--transition);
}
.hero-socials a:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
  box-shadow: 0 0 20px var(--accent-glow);
  transform: translateY(-4px);
}
.hero-right {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.hero-photo-wrap {
  position: relative;
  width: min(400px, 90%);
  aspect-ratio: 1;
}
.hero-photo-ring {
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 3px solid var(--accent);
  animation: ringPulse 3s ease-in-out infinite;
}
.hero-photo-ring-2 {
  position: absolute;
  inset: -18px;
  border-radius: 50%;
  border: 1px solid rgba(220, 38, 38, 0.3);
  animation: ringPulse 3s ease-in-out infinite 1s;
}
.hero-photo-ring-3 {
  position: absolute;
  inset: -30px;
  border-radius: 50%;
  border: 1px solid rgba(220, 38, 38, 0.15);
  animation: ringPulse 3s ease-in-out infinite 2s;
}
.hero-photo {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 50%;
  object-fit: cover;
  object-position: top center;
  filter: brightness(1.05) contrast(1.05);
  position: relative;
  z-index: 1;
}
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  z-index: 2;
  color: var(--subtle);
  font-family: var(--font-sub);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.scroll-indicator .arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(45deg);
  animation: bounce 2s infinite;
}

/* ── ABOUT ── */
#about {
  background: var(--bg-sec);
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 5rem;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}
.about-photo-col {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  align-items: center;
}
.about-photo-wrap {
  position: relative;
  width: min(360px, 100%);
}
.about-photo {
  width: 100%;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-accent);
  box-shadow: 0 20px 60px rgba(220, 38, 38, 0.15);
  object-fit: cover;
  object-position: top center;
}
.about-photo-glow {
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--accent) 0%, transparent 60%);
  opacity: 0.15;
  pointer-events: none;
}
.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  width: 100%;
  max-width: 360px;
}
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  text-align: center;
  transition: all var(--transition);
}
.stat-card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 20px var(--accent-glow);
  transform: translateY(-4px);
}
.stat-number {
  font-family: var(--font-head);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--accent);
}
.stat-label {
  font-size: 0.8rem;
  color: var(--subtle);
  font-family: var(--font-sub);
  font-weight: 500;
  letter-spacing: 0.05em;
  margin-top: 0.25rem;
}
.about-text h3 {
  font-family: var(--font-head);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 1.25rem;
  letter-spacing: 0.05em;
}
.about-text p {
  color: var(--text-sub);
  line-height: 1.8;
  margin-bottom: 1.25rem;
  font-size: 0.98rem;
}
.about-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-top: 1.5rem;
}
.highlight-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-sub);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-sub);
  transition: all var(--transition);
}
.highlight-item:hover {
  border-color: var(--accent);
  color: var(--text);
}
.highlight-item .hi {
  color: var(--accent);
  font-size: 1rem;
}

/* ── SKILLS ── */
#skills {
  background: var(--bg);
}
.skills-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
}
.skill-group {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition);
}
.skill-group:hover {
  border-color: var(--border-accent);
}
.skill-group-title {
  font-family: var(--font-head);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1.75rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.skill-group-title::before {
  content: "";
  flex: none;
  width: 4px;
  height: 20px;
  background: var(--accent);
  border-radius: 2px;
  box-shadow: 0 0 8px var(--accent-glow);
}
.skill-item {
  margin-bottom: 1.5rem;
}
.skill-item:last-child {
  margin-bottom: 0;
}
.skill-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.6rem;
}
.skill-name {
  font-family: var(--font-sub);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}
.skill-pct {
  font-family: var(--font-head);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
}
.skill-bar-track {
  height: 6px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 3px;
  overflow: hidden;
}
[data-theme="light"] .skill-bar-track {
  background: rgba(0, 0, 0, 0.08);
}
.skill-bar-fill {
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--accent), #ff6b6b);
  width: 0%;
  transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 0 8px rgba(220, 38, 38, 0.4);
}

/* ── EXPERIENCE ── */
#experience {
  background: var(--bg-sec);
}
.timeline {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
}
.timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  background: var(--timeline-line);
  transform: translateX(-50%);
}
.timeline-item {
  display: grid;
  grid-template-columns: 1fr 60px 1fr;
  gap: 0;
  margin-bottom: 3rem;
  position: relative;
}
.timeline-item:nth-child(odd) .timeline-content {
  grid-column: 1;
  text-align: right;
  padding-right: 2.5rem;
}
.timeline-item:nth-child(odd) .timeline-dot {
  grid-column: 2;
}
.timeline-item:nth-child(odd) .timeline-empty {
  grid-column: 3;
}
.timeline-item:nth-child(even) .timeline-empty {
  grid-column: 1;
}
.timeline-item:nth-child(even) .timeline-dot {
  grid-column: 2;
}
.timeline-item:nth-child(even) .timeline-content {
  grid-column: 3;
  text-align: left;
  padding-left: 2.5rem;
}
.timeline-dot {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 1.25rem;
  z-index: 1;
}
.timeline-dot-inner {
  width: 16px;
  height: 16px;
  background: var(--accent);
  border-radius: 50%;
  border: 3px solid var(--bg-sec);
  box-shadow: 0 0 12px var(--accent-glow);
  flex-shrink: 0;
}
.timeline-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: all var(--transition);
}
.timeline-content:hover {
  border-color: var(--border-accent);
  box-shadow: 0 10px 40px rgba(220, 38, 38, 0.1);
}
.tc-dates {
  font-family: var(--font-sub);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}
.tc-title {
  font-family: var(--font-sub);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.25rem;
}
.tc-company {
  font-family: var(--font-sub);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 0.2rem;
}
.tc-location {
  font-size: 0.8rem;
  color: var(--subtle);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 4px;
  justify-content: inherit;
}
.tc-bullets {
  list-style: none;
  padding: 0;
}
.tc-bullets li {
  font-size: 0.85rem;
  color: var(--text-sub);
  line-height: 1.6;
  padding: 0.3rem 0;
  position: relative;
  padding-left: 1rem;
}
.timeline-item:nth-child(odd) .tc-bullets li {
  padding-left: 0;
  padding-right: 1rem;
}
.timeline-item:nth-child(odd) .tc-bullets li::after {
  content: "▸";
  position: absolute;
  right: 0;
  color: var(--accent);
  font-size: 0.7rem;
}
.timeline-item:nth-child(even) .tc-bullets li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.7rem;
}

/* ── EDUCATION ── */
#education {
  background: var(--bg);
}
.edu-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  max-width: 900px;
  margin: 0 auto;
}
.edu-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
  transition: all var(--transition);
}
.edu-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent);
}
.edu-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-6px);
  box-shadow: 0 20px 50px rgba(220, 38, 38, 0.1);
}
.edu-icon {
  width: 50px;
  height: 50px;
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 1.25rem;
}
.edu-degree {
  font-family: var(--font-sub);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.4rem;
}
.edu-uni {
  font-family: var(--font-sub);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 0.3rem;
}
.edu-year {
  font-size: 0.82rem;
  color: var(--subtle);
  margin-bottom: 1.25rem;
}
.edu-courses {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.edu-tag {
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  border-radius: 50px;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-family: var(--font-sub);
  font-weight: 600;
  color: var(--accent);
}

/* ── PROJECTS ── */
#projects {
  background: var(--bg-sec);
}
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  max-width: 1100px;
  margin: 0 auto;
}
.project-card {
  height: 280px;
  perspective: 1000px;
  cursor: none;
}
.project-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.project-card:hover .project-card-inner {
  transform: rotateY(180deg);
}
.project-front,
.project-back {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 2.5rem 2rem;
  background: var(--bg-card);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 1rem;
}
.project-back {
  transform: rotateY(180deg);
  background: linear-gradient(135deg, #1a0505, #0a0a0a);
  border-color: var(--border-accent);
  text-align: left;
  align-items: flex-start;
}
[data-theme="light"] .project-back {
  background: linear-gradient(135deg, #fff0f0, #ffffff);
}
.project-icon {
  width: 64px;
  height: 64px;
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
}
.project-title {
  font-family: var(--font-sub);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
}
.project-tech-front {
  font-size: 0.78rem;
  color: var(--accent);
  font-family: var(--font-sub);
  font-weight: 600;
}
.project-back-title {
  font-family: var(--font-head);
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
}
.project-back-desc {
  font-size: 0.85rem;
  color: var(--text-sub);
  line-height: 1.6;
}
.project-back-result {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-sub);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius);
  border: 1px solid var(--border-accent);
  width: 100%;
}

/* ── CERTIFICATIONS & LANGUAGES ── */
#certifications {
  background: var(--bg);
}
.cert-lang-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  max-width: 1000px;
  margin: 0 auto;
}
.cert-verify-link {
  display: inline-block;
  font-family: var(--font-sub);
  margin-top: 8px;
  padding: 6px 14px;
  background: #cc0000;
  color: white;
  text-decoration: none;
  border-radius: 6px;
  font-size: 13px;
  transition: 0.5s ease;
}

.cert-verify-link:hover {
  background: #990000;
}
.cert-panel,
.lang-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
}
.panel-title {
  font-family: var(--font-head);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1.75rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.cert-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 1rem;
  transition: all var(--transition);
}
.cert-item:hover {
  border-color: var(--border-accent);
  background: var(--accent-dim);
}
.cert-badge {
  width: 44px;
  height: 44px;
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}
.cert-name {
  font-family: var(--font-sub);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
}
.cert-code {
  font-size: 0.75rem;
  color: var(--accent);
  font-family: var(--font-head);
}
.cert-future {
  border-style: dashed;
  opacity: 0.5;
  justify-content: center;
  color: var(--subtle);
  font-size: 0.82rem;
  font-family: var(--font-sub);
  gap: 0.5rem;
}
.lang-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.lang-flag {
  font-size: 1.5rem;
  flex-shrink: 0;
}
.lang-info {
  flex: 1;
}
.lang-name {
  font-family: var(--font-sub);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text);
}
.lang-level {
  font-size: 0.78rem;
  color: var(--accent);
  font-family: var(--font-sub);
  font-weight: 600;
}
.lang-dots {
  display: flex;
  gap: 4px;
}
.lang-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border);
}
.lang-dot.filled {
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent-glow);
}

/* ── CONTACT ── */
#contact {
  background: var(--bg-sec);
}
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 4rem;
  max-width: 1100px;
  margin: 0 auto;
}
.contact-form-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
}
.form-group {
  margin-bottom: 1.25rem;
}
.form-group label {
  display: block;
  font-family: var(--font-sub);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--subtle);
  margin-bottom: 0.5rem;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.85rem 1rem;
  background: var(--bg-sec);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.92rem;
  transition: all var(--transition);
  outline: none;
  resize: vertical;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
.form-group textarea {
  min-height: 120px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
#form-success {
  display: none;
  text-align: center;
  padding: 2rem;
  font-family: var(--font-sub);
  color: #4ade80;
  font-size: 1.1rem;
  font-weight: 600;
}
.contact-info h3 {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
}
.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 1rem;
  transition: all var(--transition);
  color: var(--text-sub);
  font-size: 0.9rem;
}
.contact-item:hover {
  border-color: var(--border-accent);
  background: var(--accent-dim);
  color: var(--text);
}
.contact-item-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--accent);
  flex-shrink: 0;
}
.contact-availability {
  margin-top: 2rem;
  padding: 1.25rem;
  background: rgba(74, 222, 128, 0.08);
  border: 1px solid rgba(74, 222, 128, 0.2);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-sub);
  font-size: 0.85rem;
  font-weight: 600;
  color: #4ade80;
}
.contact-availability::before {
  content: "";
  width: 8px;
  height: 8px;
  background: #4ade80;
  border-radius: 50%;
  animation: pulse 2s infinite;
  flex-shrink: 0;
}

/* ── FOOTER ── */
footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 3rem 5%;
  text-align: center;
}
.footer-content {
  max-width: 700px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}
.footer-logo {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--accent);
  letter-spacing: 0.15em;
}
.footer-socials {
  display: flex;
  gap: 1rem;
}
.footer-socials a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: var(--subtle);
  transition: all var(--transition);
}
.footer-socials a:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.footer-copy {
  font-size: 0.82rem;
  color: var(--subtle);
  font-family: var(--font-sub);
}

/* ── BACK TO TOP ── */
#back-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  background: var(--accent);
  border-radius: 50%;
  border: none;
  color: white;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition);
  box-shadow: 0 4px 20px rgba(220, 38, 38, 0.4);
}
#back-top.visible {
  opacity: 1;
  pointer-events: auto;
}
#back-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(220, 38, 38, 0.6);
}

/* ── 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;
}

@keyframes loaderPulse {
  from {
    text-shadow: 0 0 10px rgba(220, 38, 38, 0.3);
  }
  to {
    text-shadow: 0 0 40px rgba(220, 38, 38, 0.8);
  }
}
@keyframes loaderBorderDraw {
  from {
    opacity: 0;
    clip-path: inset(0 100% 0 0);
  }
  to {
    opacity: 1;
    clip-path: inset(0 0% 0 0);
  }
}
@keyframes loaderBar {
  from {
    width: 0;
  }
  to {
    width: 100%;
  }
}
@keyframes fadeOut {
  to {
    opacity: 0;
    pointer-events: none;
  }
}
@keyframes blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
}
@keyframes pulse {
  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(220, 38, 38, 0.4);
  }
  50% {
    box-shadow: 0 0 0 8px rgba(220, 38, 38, 0);
  }
}
@keyframes ringPulse {
  0%,
  100% {
    box-shadow: 0 0 10px 0px rgba(220, 38, 38, 0.4);
    opacity: 1;
  }
  50% {
    box-shadow: 0 0 30px 8px rgba(220, 38, 38, 0.2);
    opacity: 0.6;
  }
}
@keyframes bounce {
  0%,
  100% {
    transform: rotate(45deg) translateY(0);
  }
  50% {
    transform: rotate(45deg) translateY(6px);
  }
}
@keyframes float {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-12px);
  }
}

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .skills-container {
    grid-template-columns: 1fr;
  }
  .projects-grid {
    grid-template-columns: 1fr 1fr;
  }
  #hero {
    height: 185vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    padding: 0 5%;
    position: relative;
    overflow: hidden;
  }
}

@media (max-width: 768px) {
  #hero {
    height: 185vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    padding: 0 5%;
    position: relative;
    overflow: hidden;
  }
  section {
    padding: 70px 5%;
  }
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2.5rem;
  }
  .hero-right {
    order: -1;
  }
  .hero-photo-wrap {
    width: min(260px, 70vw);
  }
  .hero-cta {
    justify-content: center;
  }
  .hero-socials {
    justify-content: center;
  }
  .about-grid {
    grid-template-columns: 1fr;
  }
  .about-highlights {
    grid-template-columns: 1fr;
  }
  .timeline::before {
    left: 20px;
  }
  .timeline-item {
    grid-template-columns: 40px 1fr;
  }
  .timeline-item:nth-child(odd) .timeline-content,
  .timeline-item:nth-child(even) .timeline-content {
    grid-column: 2;
    text-align: left;
    padding-left: 1.5rem;
    padding-right: 0;
  }
  .timeline-item:nth-child(odd) .timeline-dot,
  .timeline-item:nth-child(even) .timeline-dot {
    grid-column: 1;
  }
  .timeline-item:nth-child(odd) .timeline-empty,
  .timeline-item:nth-child(even) .timeline-empty {
    display: none;
  }
  .timeline-item:nth-child(odd) .tc-location {
    justify-content: flex-start;
  }
  .timeline-item:nth-child(odd) .tc-bullets li {
    padding-left: 1rem;
    padding-right: 0;
  }
  .timeline-item:nth-child(odd) .tc-bullets li::before {
    content: "▸";
    position: absolute;
    left: 0;
    color: var(--accent);
  }
  .timeline-item:nth-child(odd) .tc-bullets li::after {
    display: none;
  }
  .edu-grid {
    grid-template-columns: 1fr;
  }
  .cert-lang-grid {
    grid-template-columns: 1fr;
  }
  .projects-grid {
    grid-template-columns: 1fr;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  #hero {
    height: 160vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    padding: 0 5%;
    position: relative;
    overflow: hidden;
  }
  .about-highlights {
    grid-template-columns: 1fr;
  }
}