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

/* ─── THEME VARIABLES ─── */
:root {
  --accent:  #00d4ff;
  --accent2: #6366f1;
  --font:    'Inter', sans-serif;
  --heading: 'Space Grotesk', sans-serif;
  --radius:  14px;
  --radius-sm: 8px;
  --trans:   0.3s cubic-bezier(0.4,0,0.2,1);
}

/* Dark theme (default) */
[data-theme="dark"] {
  --bg:        #050b18;
  --bg-alt:    #080f1f;
  --surface:   #0d1526;
  --card:      #101c30;
  --border:    rgba(255,255,255,0.07);
  --text:      #e2e8f0;
  --muted:     #64748b;
  --light:     #94a3b8;
  --shadow:    rgba(0,0,0,0.5);
  --grid-col:  rgba(0,212,255,0.04);
  --glow1:     rgba(99,102,241,0.15);
  --glow2:     rgba(0,212,255,0.10);
  --inp-bg:    #0d1526;
}

/* Light theme */
[data-theme="light"] {
  --bg:        #f0f4f8;
  --bg-alt:    #e8eef5;
  --surface:   #ffffff;
  --card:      #ffffff;
  --border:    rgba(15,23,42,0.10);
  --text:      #0f172a;
  --muted:     #64748b;
  --light:     #475569;
  --shadow:    rgba(15,23,42,0.10);
  --grid-col:  rgba(99,102,241,0.05);
  --glow1:     rgba(99,102,241,0.08);
  --glow2:     rgba(0,212,255,0.06);
  --inp-bg:    #f8fafc;
}

/* ─── SMOOTH THEME TRANSITION ─── */
body, .navbar, .proj-card, .cert-card, .tech-card, .phil-card,
.cinfo-icon, .soc-link, .finput, .footer, .section-alt, .tl-dot,
.profile-card, .stag, .dtag, .ttag, .bar-track {
  transition: background-color var(--trans), border-color var(--trans),
              color var(--trans), box-shadow var(--trans);
}

/* ─── SCROLLBAR ─── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent2); border-radius: 3px; }

/* ─── TYPOGRAPHY ─── */
.grad-text {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

html { scroll-behavior: smooth; }

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

a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ─── CONTAINER ─── */
.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* ─── NAVBAR ─── */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(5,11,24,0.55);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background var(--trans), border-color var(--trans);
}
[data-theme="light"] .navbar {
  background: rgba(240,244,248,0.75);
}
.navbar.scrolled {
  background: rgba(5,11,24,0.96);
  box-shadow: 0 1px 24px var(--shadow);
}
[data-theme="light"] .navbar.scrolled {
  background: rgba(240,244,248,0.98);
}

.nav-inner {
  max-width: 1120px; margin: 0 auto; padding: 0 24px;
  height: 68px; display: flex; align-items: center; gap: 32px;
}

.nav-logo {
  font-family: var(--heading);
  font-size: 1.4rem; font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -1px; flex-shrink: 0;
}

.nav-links {
  display: flex; gap: 28px; margin: 0 auto;
}
.nav-links a {
  font-size: 0.88rem; font-weight: 500; color: var(--light);
  transition: color var(--trans); position: relative;
}
.nav-links a::after {
  content: ''; position: absolute; left: 0; bottom: -4px;
  width: 0; height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  transition: width var(--trans);
}
.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { width: 100%; }

.nav-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }

/* Theme toggle */
.theme-toggle {
  width: 38px; height: 38px; border-radius: 50%;
  background: var(--surface); border: 1px solid var(--border);
  cursor: pointer; position: relative;
  display: flex; align-items: center; justify-content: center;
  color: var(--light); overflow: hidden;
  transition: border-color var(--trans), color var(--trans);
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); }
.icon-sun, .icon-moon {
  position: absolute;
  transition: opacity 0.3s ease, transform 0.3s ease;
}
[data-theme="dark"]  .icon-sun  { opacity: 1; transform: rotate(0deg); }
[data-theme="dark"]  .icon-moon { opacity: 0; transform: rotate(90deg); }
[data-theme="light"] .icon-sun  { opacity: 0; transform: rotate(-90deg); }
[data-theme="light"] .icon-moon { opacity: 1; transform: rotate(0deg); }

.btn-hire {
  padding: 8px 20px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff; font-size: 0.85rem; font-weight: 600;
  border-radius: 50px; white-space: nowrap;
  transition: opacity var(--trans), transform var(--trans);
  box-shadow: 0 2px 12px rgba(0,212,255,0.2);
}
.btn-hire:hover { opacity: 0.85; transform: translateY(-1px); }

.hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.hamburger span {
  display: block; width: 24px; height: 2px;
  background: var(--text); border-radius: 2px;
  transition: var(--trans);
}

/* ─── HERO ─── */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  position: relative; overflow: hidden;
  padding: 100px 24px 60px;
}

.hero-bg { position: absolute; inset: 0; pointer-events: none; }

.grid-overlay {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--grid-col) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-col) 1px, transparent 1px);
  background-size: 60px 60px;
  transition: background-image var(--trans);
}

.glow {
  position: absolute; border-radius: 50%;
  filter: blur(120px); pointer-events: none; transition: background var(--trans);
}
.glow-1 {
  width: 600px; height: 600px; top: -200px; right: -100px;
  background: radial-gradient(circle, var(--glow1) 0%, transparent 70%);
}
.glow-2 {
  width: 400px; height: 400px; bottom: -100px; left: -50px;
  background: radial-gradient(circle, var(--glow2) 0%, transparent 70%);
}

.hero-body {
  max-width: 760px; margin: 0 auto; text-align: center; position: relative;
}

.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(0,212,255,0.08); border: 1px solid rgba(0,212,255,0.2);
  color: var(--accent); font-size: 0.82rem; font-weight: 500;
  padding: 6px 16px; border-radius: 50px; margin-bottom: 28px;
}

.pulse-dot {
  width: 8px; height: 8px; background: #22c55e;
  border-radius: 50%; flex-shrink: 0;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(34,197,94,0.4); }
  70%  { box-shadow: 0 0 0 8px rgba(34,197,94,0); }
  100% { box-shadow: 0 0 0 0 rgba(34,197,94,0); }
}

/* Hero monogram */
.hero-monogram {
  width: 140px; height: 140px;
  position: relative; margin: 0 auto 24px;
}
.hm-svg {
  position: absolute; inset: 0; width: 100%; height: 100%;
  overflow: visible;
}
.hm-ring-1 { animation: hmSpin 12s linear infinite; transform-origin: 70px 70px; }
.hm-ring-2 { animation: hmSpin 20s linear infinite reverse; transform-origin: 70px 70px; }
@keyframes hmSpin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.hm-core {
  position: absolute; inset: 28px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  display: flex; align-items: center; justify-content: center;
  font-family: var(--heading); font-size: 1.7rem; font-weight: 800; color: #fff;
  box-shadow: 0 0 40px rgba(0,212,255,0.35), 0 0 80px rgba(99,102,241,0.2);
}

.hero-name {
  font-family: var(--heading);
  font-size: clamp(3rem, 8vw, 6.5rem);
  font-weight: 800; line-height: 1.0;
  letter-spacing: -3px; margin-bottom: 20px;
  display: flex; flex-direction: column; align-items: center;
}

.hero-role {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--light); font-weight: 400;
  margin-bottom: 20px; min-height: 2em;
  display: flex; align-items: center; justify-content: center; gap: 4px;
}
.role-prefix { color: var(--muted); }

.cursor-blink {
  color: var(--accent); font-weight: 300;
  animation: blink 1s step-end infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

.hero-tagline {
  font-size: 1.05rem; color: var(--light); line-height: 1.75;
  max-width: 560px; margin: 0 auto 36px;
}

.hero-btns {
  display: flex; gap: 16px; justify-content: center; flex-wrap: wrap;
  margin-bottom: 52px;
}

.btn-primary {
  display: inline-block; padding: 14px 32px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
  color: #fff; font-weight: 600; font-size: 0.95rem;
  border-radius: 50px; border: none; cursor: pointer;
  transition: transform var(--trans), box-shadow var(--trans);
  box-shadow: 0 4px 24px rgba(0,212,255,0.25);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(0,212,255,0.35); }
.btn-primary.full  { width: 100%; text-align: center; }

.btn-ghost {
  display: inline-block; padding: 14px 32px;
  background: transparent; color: var(--text);
  font-weight: 600; font-size: 0.95rem;
  border-radius: 50px; border: 1px solid var(--border); cursor: pointer;
  transition: border-color var(--trans), background var(--trans);
}
.btn-ghost:hover { border-color: var(--accent); background: rgba(0,212,255,0.05); }

.hero-stats { display: flex; align-items: center; justify-content: center; gap: 32px; flex-wrap: wrap; }
.hstat { text-align: center; }
.hstat-n {
  display: block; font-family: var(--heading); font-size: 2rem; font-weight: 800; line-height: 1;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hstat-l { font-size: 0.78rem; color: var(--muted); font-weight: 500; }
.hstat-sep { width: 1px; height: 40px; background: var(--border); }

.scroll-cue {
  position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: var(--muted); font-size: 0.72rem; letter-spacing: 2px; text-transform: uppercase;
}
.scroll-line-anim {
  width: 1px; height: 48px;
  background: linear-gradient(to bottom, transparent, var(--accent));
  animation: scrollDown 1.8s ease-in-out infinite;
}
@keyframes scrollDown {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ─── SECTIONS ─── */
.section { padding: 100px 0; }
.section-alt { background: var(--bg-alt); }

.sec-head { text-align: center; margin-bottom: 64px; }
.sec-tag {
  display: inline-block; font-size: 0.78rem; font-weight: 600;
  letter-spacing: 3px; text-transform: uppercase; color: var(--accent); margin-bottom: 12px;
}
.sec-title {
  font-family: var(--heading); font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800; letter-spacing: -1.5px; line-height: 1.1;
}
.sec-sub {
  margin-top: 16px; color: var(--light); font-size: 1.05rem;
  max-width: 480px; margin-left: auto; margin-right: auto;
}

/* ─── ABOUT ─── */
.about-grid { display: grid; grid-template-columns: 240px 1fr; gap: 64px; align-items: start; }
.about-left { display: flex; flex-direction: column; align-items: stretch; }

/* ─── PROFILE CARD ─── */
.profile-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 20px; padding: 28px 20px 24px;
  text-align: center; position: relative; overflow: hidden;
  box-shadow: 0 4px 24px var(--shadow);
  transition: border-color var(--trans), box-shadow var(--trans);
}
.profile-card:hover { border-color: rgba(0,212,255,0.2); box-shadow: 0 8px 40px var(--shadow); }

.profile-card-stripe {
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
}

/* Avatar container */
.profile-avatar {
  width: 90px; height: 90px; border-radius: 50%;
  margin: 0 auto 16px; position: relative;
}

/* Photo variant */
.profile-avatar.has-photo {
  border: 3px solid transparent;
  background: linear-gradient(var(--card), var(--card)) padding-box,
              linear-gradient(135deg, var(--accent), var(--accent2)) border-box;
  overflow: hidden;
}
.prof-photo { width: 100%; height: 100%; object-fit: cover; display: block; }

/* Initials variant with spinning dashed ring */
.profile-avatar.is-initials { overflow: visible; }
.prof-initials {
  width: 90px; height: 90px; position: relative;
  display: flex; align-items: center; justify-content: center;
}
.prof-ring-svg {
  position: absolute; inset: -5px; width: calc(100% + 10px); height: calc(100% + 10px);
}
.ring-spin { animation: ringRotate 10s linear infinite; transform-origin: center; }
@keyframes ringRotate { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.prof-initials span {
  position: relative; z-index: 2;
  width: 76px; height: 76px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  display: flex; align-items: center; justify-content: center;
  font-family: var(--heading); font-size: 1.8rem; font-weight: 800; color: #fff;
  box-shadow: 0 4px 20px rgba(0,212,255,0.3);
}

/* Online/availability dot */
.profile-status-dot {
  position: absolute; bottom: 2px; right: 2px;
  width: 14px; height: 14px; background: #22c55e;
  border-radius: 50%; border: 2px solid var(--card);
  animation: pulse 2s infinite;
}

.profile-name {
  font-family: var(--heading); font-size: 1.05rem; font-weight: 700;
  color: var(--text); margin-bottom: 4px; line-height: 1.2;
}
.profile-job { font-size: 0.78rem; color: var(--muted); line-height: 1.4; }

.profile-divider {
  height: 1px; background: var(--border); margin: 16px 0;
}

.profile-loc {
  display: flex; align-items: center; justify-content: center; gap: 6px;
  font-size: 0.85rem; color: var(--light); margin-bottom: 10px;
}
.profile-flag { font-size: 1rem; line-height: 1; }

.profile-avail {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.78rem; color: var(--accent); font-weight: 500;
  background: rgba(0,212,255,0.07); border: 1px solid rgba(0,212,255,0.15);
  padding: 5px 12px; border-radius: 50px; margin-bottom: 16px;
}

.profile-socials {
  display: flex; justify-content: center; gap: 8px;
}

.about-p { color: var(--light); line-height: 1.8; margin-bottom: 20px; font-size: 1rem; }
.about-p strong { color: var(--text); font-weight: 600; }

.phil-row { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 28px; }
.phil-card {
  display: flex; align-items: center; gap: 8px;
  background: var(--surface); border: 1px solid var(--border);
  padding: 10px 16px; border-radius: var(--radius-sm);
  font-size: 0.85rem; color: var(--light);
}
.phil-card:hover { border-color: rgba(0,212,255,0.3); }
.phil-icon { font-size: 1rem; }

.domain-label { font-size: 0.78rem; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 10px; }
.tag-row { display: flex; flex-wrap: wrap; gap: 8px; }
.dtag {
  font-size: 0.82rem; color: var(--accent);
  background: rgba(0,212,255,0.08); border: 1px solid rgba(0,212,255,0.15);
  padding: 4px 12px; border-radius: 50px;
}

/* ─── SKILLS ─── */
.skills-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.skills-subtitle {
  font-family: var(--heading); font-size: 1rem; font-weight: 700; color: var(--text);
  margin-bottom: 24px; padding-bottom: 12px; border-bottom: 1px solid var(--border);
}

.bar-list { display: flex; flex-direction: column; gap: 20px; }
.bar-label { display: flex; justify-content: space-between; font-size: 0.85rem; color: var(--light); margin-bottom: 8px; }
.bar-label span:last-child { color: var(--accent); font-weight: 600; }
.bar-track { height: 6px; background: rgba(128,128,128,0.12); border-radius: 3px; overflow: hidden; }
.bar-fill {
  height: 100%; width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: 3px; transition: width 1.2s cubic-bezier(0.4,0,0.2,1);
}

.tech-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; }
.tech-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px 12px;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  text-align: center; cursor: default;
  box-shadow: 0 2px 8px var(--shadow);
}
.tech-card:hover { border-color: rgba(0,212,255,0.3); transform: translateY(-3px); box-shadow: 0 8px 24px var(--shadow); }

.tech-badge {
  width: 44px; height: 44px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 0.8rem;
}
.tech-badge.xl  { background: rgba(22,163,74,0.15);  color: #16a34a; }
.tech-badge.pbi { background: rgba(234,179,8,0.15);  color: #ca8a04; }
.tech-badge.sql { background: rgba(59,130,246,0.15); color: #2563eb; }
.tech-badge.py  { background: rgba(99,102,241,0.15); color: #4f46e5; }
.tech-badge.ga  { background: rgba(249,115,22,0.15); color: #ea580c; }
.tech-badge.ai  { background: rgba(0,212,255,0.15);  color: #0891b2; }
[data-theme="dark"] .tech-badge.xl  { color: #4ade80; }
[data-theme="dark"] .tech-badge.pbi { color: #facc15; }
[data-theme="dark"] .tech-badge.sql { color: #60a5fa; }
[data-theme="dark"] .tech-badge.py  { color: #818cf8; }
[data-theme="dark"] .tech-badge.ga  { color: #fb923c; }
[data-theme="dark"] .tech-badge.ai  { color: var(--accent); }

.tech-name { font-size: 0.78rem; font-weight: 600; color: var(--text); line-height: 1.2; }
.tech-lvl  { font-size: 0.7rem; color: var(--muted); }

.soft-row { }
.soft-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.stag {
  font-size: 0.84rem; color: var(--light);
  background: var(--surface); border: 1px solid var(--border);
  padding: 7px 16px; border-radius: 50px;
}
.stag:hover { border-color: var(--accent2); color: var(--text); }

/* ─── PROJECTS ─── */
.projects-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; align-items: start; }

.proj-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px; position: relative; overflow: hidden;
  box-shadow: 0 2px 12px var(--shadow);
  transition: border-color var(--trans), transform var(--trans), box-shadow var(--trans);
}
.proj-card:hover { border-color: rgba(0,212,255,0.25); transform: translateY(-4px); box-shadow: 0 16px 40px var(--shadow); }
.proj-card.featured { grid-column: 1 / -1; border-color: rgba(99,102,241,0.3); }
[data-theme="dark"] .proj-card.featured { background: linear-gradient(135deg, #101c30 0%, #140f30 100%); }
.proj-card.featured::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
}

.proj-featured-badge {
  position: absolute; top: 20px; right: 20px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff; font-size: 0.7rem; font-weight: 700;
  padding: 3px 10px; border-radius: 50px; text-transform: uppercase; letter-spacing: 1px;
}

.proj-img { width: 100%; aspect-ratio: 16/9; border-radius: 10px; overflow: hidden; margin-bottom: 20px; }
.proj-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.proj-card:hover .proj-img img { transform: scale(1.03); }

.proj-top { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 16px; }

.proj-icon {
  width: 52px; height: 52px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.icon-hr    { background: rgba(99,102,241,0.12); color: #818cf8; }
.icon-sales { background: rgba(0,212,255,0.10); color: var(--accent); }
.icon-store { background: rgba(249,115,22,0.10); color: #fb923c; }
[data-theme="light"] .icon-hr    { color: #4f46e5; }
[data-theme="light"] .icon-sales { color: #0891b2; }
[data-theme="light"] .icon-store { color: #ea580c; }

.proj-tools { display: flex; flex-wrap: wrap; gap: 6px; justify-content: flex-end; }
.ttag {
  font-size: 0.73rem; font-weight: 600;
  background: var(--surface); border: 1px solid var(--border);
  color: var(--light); padding: 3px 9px; border-radius: 4px;
}
.ttag.sm { font-size: 0.7rem; }

.proj-title {
  font-family: var(--heading); font-size: 1.2rem; font-weight: 700;
  color: var(--text); margin-bottom: 10px; line-height: 1.3;
}
.featured .proj-title { font-size: 1.5rem; }

.proj-desc { font-size: 0.9rem; color: var(--light); line-height: 1.75; margin-bottom: 16px; }

.proj-features { margin-bottom: 20px; }
.proj-features li {
  font-size: 0.85rem; color: var(--light);
  padding: 5px 0 5px 18px; position: relative;
}
.proj-features li::before {
  content: ''; position: absolute; left: 0; top: 12px;
  width: 7px; height: 7px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
}

.proj-process { margin-top: 16px; }
.process-label { font-size: 0.73rem; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 8px; }
.process-steps { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; font-size: 0.8rem; color: var(--light); }
.arr { color: var(--accent2); }

.proj-link-btn {
  display: inline-flex; align-items: center; gap: 6px;
  margin-top: 16px; font-size: 0.85rem; font-weight: 600; color: var(--accent);
  border: 1px solid rgba(0,212,255,0.3); padding: 8px 18px; border-radius: 50px;
  transition: background var(--trans), color var(--trans), border-color var(--trans);
}
.proj-link-btn:hover { background: rgba(0,212,255,0.1); border-color: var(--accent); }

/* ─── TIMELINE ─── */
.timeline { display: flex; flex-direction: column; max-width: 800px; margin: 0 auto; }
.tl-item  { display: flex; gap: 24px; }
.tl-spine { display: flex; flex-direction: column; align-items: center; flex-shrink: 0; padding-top: 4px; }
.tl-dot   { width: 14px; height: 14px; border-radius: 50%; background: var(--surface); border: 2px solid var(--border); flex-shrink: 0; }
.tl-dot.active { background: var(--accent); border-color: var(--accent); box-shadow: 0 0 14px rgba(0,212,255,0.5); }
.tl-dot.edu    { background: var(--accent2); border-color: var(--accent2); }
.tl-line { width: 1px; flex: 1; background: var(--border); margin: 8px 0; min-height: 40px; }
.tl-body { padding-bottom: 40px; flex: 1; }
.tl-header { display: flex; justify-content: space-between; align-items: flex-start; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.tl-role { font-family: var(--heading); font-size: 1.15rem; font-weight: 700; color: var(--text); }
.tl-org  { font-size: 0.9rem; color: var(--accent); font-weight: 500; margin-top: 2px; }
.tl-meta { text-align: right; }
.tl-date { display: block; font-size: 0.82rem; color: var(--muted); }
.tl-loc  { display: block; font-size: 0.78rem; color: var(--muted); margin-top: 2px; }
.tl-tools { display: flex; flex-wrap: wrap; gap: 6px; }
.tl-note { font-size: 0.88rem; color: var(--light); margin-top: 8px; line-height: 1.7; font-style: italic; }

/* ─── CERTIFICATIONS ─── */
.cert-grid { display: flex; flex-direction: column; gap: 12px; max-width: 760px; margin: 0 auto; }
.cert-card {
  display: flex; align-items: center; gap: 16px;
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px 22px;
  box-shadow: 0 2px 8px var(--shadow);
  transition: border-color var(--trans), transform var(--trans), box-shadow var(--trans);
}
.cert-card:hover { border-color: rgba(99,102,241,0.4); transform: translateX(6px); box-shadow: 0 4px 20px var(--shadow); }

.cert-ico {
  width: 46px; height: 46px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 0.85rem; flex-shrink: 0;
}
.cert-ico.g  { background: rgba(59,130,246,0.12); color: #2563eb; }
.cert-ico.xl { background: rgba(22,163,74,0.12);  color: #16a34a; }
.cert-ico.mk { background: rgba(234,179,8,0.12);  color: #ca8a04; }
.cert-ico.ai { background: rgba(0,212,255,0.12);  color: #0891b2; }
[data-theme="dark"] .cert-ico.g  { color: #60a5fa; }
[data-theme="dark"] .cert-ico.xl { color: #4ade80; }
[data-theme="dark"] .cert-ico.mk { color: #facc15; }
[data-theme="dark"] .cert-ico.ai { color: var(--accent); }

/* Logo variant — always white bg so brand colors read correctly */
.cert-ico.has-logo {
  background: #ffffff !important;
  padding: 8px;
  border: 1px solid rgba(0,0,0,0.08) !important;
}
.cert-logo-img {
  width: 100%; height: 100%;
  object-fit: contain; display: block;
  border-radius: 4px;
}

/* Tool logo variant */
.tech-badge.has-logo { background: #ffffff !important; padding: 6px; border: 1px solid rgba(0,0,0,0.08); }
.tool-logo-img { width: 100%; height: 100%; object-fit: contain; display: block; border-radius: 4px; }

.cert-info { flex: 1; }
.cert-info h4 { font-size: 0.95rem; font-weight: 600; color: var(--text); }
.cert-info p  { font-size: 0.8rem; color: var(--muted); margin-top: 2px; }
.cert-tick {
  width: 28px; height: 28px; border-radius: 50%;
  background: rgba(34,197,94,0.12); color: #16a34a;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.8rem; font-weight: 700; flex-shrink: 0;
}
[data-theme="dark"] .cert-tick { color: #4ade80; }

/* ─── CONTACT ─── */
.contact-grid { display: grid; grid-template-columns: 1fr 1.6fr; gap: 64px; align-items: start; }
.contact-left { display: flex; flex-direction: column; gap: 28px; padding-top: 8px; }

.cinfo-item { display: flex; align-items: flex-start; gap: 16px; }
.cinfo-icon {
  width: 42px; height: 42px; border-radius: 10px;
  background: var(--surface); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent); flex-shrink: 0;
}
.cinfo-label { font-size: 0.75rem; color: var(--muted); font-weight: 500; text-transform: uppercase; letter-spacing: 1px; }
.cinfo-val   { font-size: 0.95rem; color: var(--text); font-weight: 500; }
a.cinfo-val:hover { color: var(--accent); }

.social-row { display: flex; gap: 10px; }
.soc-link {
  width: 42px; height: 42px; border-radius: 10px;
  background: var(--surface); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center; color: var(--light);
  transition: border-color var(--trans), color var(--trans), background var(--trans), transform var(--trans);
}
.soc-link:hover { border-color: var(--accent); color: var(--accent); background: rgba(0,212,255,0.06); transform: translateY(-2px); }

/* Form */
.contact-form { display: flex; flex-direction: column; gap: 14px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.finput {
  width: 100%; padding: 13px 16px;
  background: var(--inp-bg); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text);
  font-family: var(--font); font-size: 0.9rem;
  outline: none; transition: border-color var(--trans), background var(--trans);
}
.finput::placeholder { color: var(--muted); }
.finput:focus { border-color: rgba(0,212,255,0.45); background: var(--surface); }
.ftextarea { resize: vertical; min-height: 130px; }

.form-status {
  padding: 12px 16px; border-radius: var(--radius-sm);
  font-size: 0.88rem; font-weight: 500; display: none;
}
.form-status.success { background: rgba(34,197,94,0.1); color: #16a34a; border: 1px solid rgba(34,197,94,0.2); display: block; }
.form-status.error   { background: rgba(239,68,68,0.1);  color: #dc2626; border: 1px solid rgba(239,68,68,0.2);  display: block; }
[data-theme="dark"] .form-status.success { color: #4ade80; }
[data-theme="dark"] .form-status.error   { color: #f87171; }

/* ─── FOOTER ─── */
.footer { border-top: 1px solid var(--border); padding: 48px 0; }
.footer-inner { text-align: center; }
.footer-logo {
  font-family: var(--heading); font-size: 2rem; font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; margin-bottom: 12px;
}
.footer-name { font-size: 0.9rem; color: var(--light); margin-bottom: 6px; }
.footer-copy { font-size: 0.78rem; color: var(--muted); }

/* ─── BACK TO TOP ─── */
.back-to-top {
  position: fixed; bottom: 32px; right: 32px; z-index: 99;
  width: 46px; height: 46px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff; border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transform: translateY(16px) scale(0.8);
  transition: opacity 0.3s, transform 0.3s;
  box-shadow: 0 4px 20px rgba(0,212,255,0.35);
}
.back-to-top.visible { opacity: 1; transform: translateY(0) scale(1); }
.back-to-top:hover   { transform: translateY(-3px) scale(1.05); }

/* ─── SKELETON ─── */
.skeleton-block {
  background: linear-gradient(90deg, var(--surface) 25%, var(--card) 50%, var(--surface) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius);
}
@keyframes shimmer { 0%{background-position:200% 0} 100%{background-position:-200% 0} }

/* ─── SCROLL REVEAL ─── */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ─── MOBILE NAV ─── */
body.nav-open .nav-links {
  display: flex; flex-direction: column;
  position: fixed; top: 68px; left: 0; right: 0;
  background: var(--bg); border-bottom: 1px solid var(--border);
  padding: 24px; gap: 20px; z-index: 99;
  backdrop-filter: blur(20px);
}

/* Hire Me in mobile nav — hidden on desktop */
.nav-hire-mobile { display: none; }
body.nav-open .nav-hire-mobile { display: block; }
body.nav-open .nav-hire-mobile .btn-hire {
  display: inline-flex; padding: 10px 28px;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 900px) {
  .about-grid      { grid-template-columns: 1fr; }
  .about-left      { max-width: 320px; margin: 0 auto; }
  .skills-layout   { grid-template-columns: 1fr; }
  .projects-grid   { grid-template-columns: 1fr; }
  .proj-card.featured { grid-column: auto; }
  .contact-grid    { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 700px) {
  .nav-links  { display: none; }
  .hamburger  { display: flex; }
  .nav-actions .btn-hire { display: none; }
  .hero       { padding: 110px 20px 60px; }
  .hero-btns  { flex-direction: column; align-items: center; }
  .hero-stats { gap: 20px; }
  .hstat-sep  { display: none; }
  .section    { padding: 72px 0; }
  .form-row   { grid-template-columns: 1fr; }
  .tech-grid  { grid-template-columns: repeat(2,1fr); }
  .tl-header  { flex-direction: column; }
  .tl-meta    { text-align: left; }
  .back-to-top { bottom: 20px; right: 20px; }
}

@media (max-width: 480px) {
  .hero-name  { letter-spacing: -2px; }
  .phil-row   { flex-direction: column; }
  .nav-actions .btn-hire { display: none; }
}