/* ═══════════════════════════════════════
   MUHAMMAD SHAWAIZ PORTFOLIO — CSS
   ═══════════════════════════════════════ */
:root {
  --teal: #0d9488;
  --teal-light: #14b8a6;
  --teal-dark: #0f766e;
  --teal-pale: #ccfbf1;
  --bg: #f0faf9;
  --white: #ffffff;
  --dark: #0f172a;
  --mid: #334155;
  --muted: #64748b;
  --border: #e2e8f0;
  --card: #ffffff;
  --shadow: 0 4px 24px rgba(13, 148, 136, .08);
  --shadow-md: 0 8px 32px rgba(13, 148, 136, .12);
  --shadow-lg: 0 16px 48px rgba(13, 148, 136, .18);
  --radius: 18px;
  --radius-sm: 12px;
  --nav-h: 70px;
  --transition: .3s cubic-bezier(.4, 0, .2, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: 'Inter', sans-serif; background: var(--bg); color: var(--dark); overflow-x: hidden; line-height: 1.6; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; }
ul { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }

#loader { position: fixed; inset: 0; background: var(--dark); display: flex; align-items: center; justify-content: center; z-index: 9999; transition: opacity .6s ease, visibility .6s ease; }
#loader.out { opacity: 0; visibility: hidden; }
.loader-content { text-align: center; }
.loader-logo { font-family: 'Space Grotesk', sans-serif; font-size: 3rem; font-weight: 800; color: var(--white); letter-spacing: .1em; margin-bottom: 1.5rem; animation: logoPop .6s ease; }
.loader-logo span { color: var(--teal-light); }
@keyframes logoPop { from { opacity: 0; transform: scale(.8); } to { opacity: 1; transform: scale(1); } }
.loader-bar { width: 240px; height: 3px; background: #1e293b; border-radius: 4px; overflow: hidden; margin: 0 auto 1rem; }
.loader-fill { height: 100%; background: linear-gradient(90deg, var(--teal), var(--teal-light)); border-radius: 4px; animation: loadBar 2.2s ease forwards; }
@keyframes loadBar { from { width: 0; } to { width: 100%; } }
.loader-text { font-size: .8rem; color: #475569; letter-spacing: .08em; }

#navbar { position: fixed; top: 0; left: 0; right: 0; height: var(--nav-h); display: flex; align-items: center; justify-content: space-between; padding: 0 2.5rem; z-index: 100; background: rgba(240, 250, 249, .88); backdrop-filter: blur(20px); border-bottom: 1px solid rgba(13, 148, 136, .08); transition: box-shadow var(--transition); }
#navbar.scrolled { box-shadow: 0 2px 24px rgba(13, 148, 136, .14); }
.nav-logo { font-family: 'Space Grotesk', sans-serif; font-size: 1rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--dark); }
.nav-links { display: flex; align-items: center; gap: 2rem; }
.nav-links li a { font-size: .88rem; font-weight: 500; color: var(--mid); position: relative; transition: color var(--transition); }
.nav-links li a::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px; background: var(--teal); border-radius: 2px; transition: width var(--transition); }
.nav-links li a:hover { color: var(--teal); }
.nav-links li a:hover::after { width: 100%; }
.nav-cta { background: var(--dark) !important; color: var(--white) !important; padding: .5rem 1.25rem !important; border-radius: 50px !important; transition: background var(--transition), transform var(--transition) !important; }
.nav-cta:hover { background: var(--teal) !important; transform: translateY(-1px) !important; }
.nav-cta::after { display: none !important; }
.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; padding: .3rem; }
.hamburger span { width: 24px; height: 2px; background: var(--dark); border-radius: 2px; transition: all var(--transition); display: block; }
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ── HERO ── */
.hero { min-height: 100vh; padding: 7rem 2.5rem 4rem; display: grid; grid-template-columns: 300px 1fr; gap: 2rem; align-items: start; max-width: 1200px; margin: 0 auto; }
.hero-sidebar { background: var(--card); border-radius: var(--radius); padding: 2.5rem 2rem; text-align: center; box-shadow: var(--shadow); position: sticky; top: 5rem; border: 1px solid var(--border); min-width: 0; }
.avatar-wrap { position: relative; width: 150px; height: 150px; margin: 0 auto 1.5rem; }
.avatar-wrap img { width: 150px; height: 150px; border-radius: 50%; object-fit: cover; border: 3px solid var(--white); box-shadow: 0 0 0 3px var(--teal-light); position: relative; z-index: 1; }
.avatar-ring { position: absolute; inset: -8px; border-radius: 50%; border: 2px dashed var(--teal-light); animation: spin 12s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.hero-name { font-family: 'Space Grotesk', sans-serif; font-size: 1.4rem; font-weight: 700; color: var(--dark); margin-bottom: .4rem; }
.hero-role { font-size: .85rem; color: var(--muted); margin-bottom: 1.5rem; line-height: 1.5; }
.socials { display: flex; justify-content: center; gap: .75rem; }
.socials a { width: 36px; height: 36px; border-radius: 50%; border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; color: var(--muted); font-size: .85rem; text-decoration: none; transition: all .2s; }
.socials a:hover { background: var(--teal); color: var(--white); border-color: var(--teal); transform: translateY(-2px); }
.hero-content { display: flex; flex-direction: column; gap: 1.5rem; min-width: 0; }
.hero-main { background: var(--card); border-radius: var(--radius); padding: 2.5rem; box-shadow: var(--shadow); border: 1px solid var(--border); min-width: 0; }
.hero-eyebrow { font-size: .85rem; color: var(--muted); margin-bottom: .75rem; font-weight: 500; }
.hero-title { font-family: 'Space Grotesk', sans-serif; font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 800; line-height: 1.15; color: var(--dark); margin-bottom: 1.25rem; overflow-wrap: break-word; }
.hero-title .outline { -webkit-text-stroke: 2px var(--teal-light); color: transparent; }
.hero-title .accent { color: var(--teal); }
.avail-badge { display: inline-flex; align-items: center; gap: .5rem; font-size: .82rem; color: var(--teal-dark); font-weight: 500; margin-bottom: 1.5rem; }
.avail-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--teal); animation: pulse 2s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { box-shadow: 0 0 0 0 rgba(13, 148, 136, .4); } 50% { box-shadow: 0 0 0 6px rgba(13, 148, 136, 0); } }
.btn { display: inline-flex; align-items: center; gap: .5rem; padding: .75rem 1.75rem; border-radius: 50px; font-size: .9rem; font-weight: 600; text-decoration: none; cursor: pointer; border: none; transition: all .25s; font-family: 'Inter', sans-serif; }
.btn-primary { background: var(--teal); color: var(--white); }
.btn-primary:hover { background: var(--teal-dark); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(13, 148, 136, .3); }
.btn-outline { background: transparent; color: var(--dark); border: 1.5px solid var(--border); }
.btn-outline:hover { border-color: var(--teal); color: var(--teal); transform: translateY(-2px); }
.hero-ticker { background: var(--card); border-radius: var(--radius); padding: 1.25rem 2rem; box-shadow: var(--shadow); border: 1px solid var(--border); overflow: hidden; min-width: 0; }
.ticker-inner { display: flex; gap: 3rem; animation: ticker 18s linear infinite; white-space: nowrap; }
.ticker-inner:hover { animation-play-state: paused; }
.ticker-item { font-size: .88rem; color: var(--muted); font-weight: 500; }
.ticker-item span { color: var(--teal); font-weight: 600; }
@keyframes ticker { from { transform: translateX(0); } to { transform: translateX(-50%); } }

.ticker-wrap { background: var(--card); border-radius: var(--radius); border: 1px solid var(--border); overflow: hidden; padding: 1rem 0; box-shadow: var(--shadow); }
.ticker-track { display: flex; gap: 3rem; white-space: nowrap; animation: ticker-move 22s linear infinite; }
.ticker-track:hover { animation-play-state: paused; }
.ticker-track span { font-size: .88rem; color: var(--muted); padding: 0 1rem; }
.ticker-track span strong { color: var(--teal); font-weight: 600; }
@keyframes ticker-move { from { transform: translateX(0); } to { transform: translateX(-50%); } }

.section-pad { padding: 4.5rem 0; }
.section-card { background: var(--card); border-radius: var(--radius); padding: 3.5rem; box-shadow: var(--shadow); border: 1px solid var(--border); }
.section-eyebrow { font-size: .75rem; text-transform: uppercase; letter-spacing: .16em; color: var(--teal); font-weight: 700; margin-bottom: .6rem; }
.section-title { font-family: 'Space Grotesk', sans-serif; font-size: clamp(1.6rem, 2.8vw, 2.2rem); font-weight: 700; color: var(--dark); margin-bottom: 2.5rem; }
.section-sub { font-size: .88rem; color: var(--muted); margin-top: -.5rem; margin-bottom: 2rem; max-width: 500px; }

.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.service-card { border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 2rem; transition: all var(--transition); }
.service-card:hover { border-color: var(--teal-light); box-shadow: var(--shadow-md); transform: translateY(-5px); }
.service-icon { font-size: 2rem; color: var(--teal); margin-bottom: 1rem; }
.service-name { font-family: 'Space Grotesk', sans-serif; font-size: .95rem; font-weight: 600; color: var(--dark); margin-bottom: .6rem; }
.service-desc { font-size: .83rem; color: var(--muted); line-height: 1.65; }

.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; }
.about-col-title { font-family: 'Space Grotesk', sans-serif; font-size: 1rem; font-weight: 700; color: var(--dark); margin-bottom: 1.5rem; display: flex; align-items: center; gap: .6rem; }
.about-col-title span { display: inline-block; width: 4px; height: 20px; background: var(--teal); border-radius: 2px; }
.timeline { display: flex; flex-direction: column; gap: 0; }
.tl-item { display: grid; grid-template-columns: 44px 1fr; gap: 1rem; padding-bottom: 2rem; position: relative; }
.tl-item:not(:last-child)::before { content: ''; position: absolute; left: 21px; top: 44px; width: 2px; height: calc(100% - 44px); background: var(--teal-pale); }
.tl-icon { width: 44px; height: 44px; border-radius: 50%; flex-shrink: 0; background: var(--teal-pale); color: var(--teal); font-size: .85rem; display: flex; align-items: center; justify-content: center; border: 2px solid var(--teal-light); z-index: 1; }
.tl-date { font-size: .72rem; color: var(--muted); font-weight: 500; margin-bottom: .2rem; display: block; }
.tl-role { font-family: 'Space Grotesk', sans-serif; font-size: .92rem; font-weight: 600; color: var(--dark); margin-bottom: .2rem; }
.tl-company { font-size: .78rem; color: var(--teal); font-weight: 600; display: block; margin-bottom: .4rem; }
.tl-desc { font-size: .8rem; color: var(--muted); line-height: 1.65; }

.skills-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; }
.skill-card { border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 1.4rem; text-align: center; transition: all var(--transition); background: var(--bg); }
.skill-card:hover { border-color: var(--teal-light); transform: translateY(-4px); box-shadow: var(--shadow-md); background: var(--white); }
.skill-logo { font-size: 2.2rem; margin-bottom: .4rem; line-height: 1; }
.skill-name { font-size: .78rem; font-weight: 600; color: var(--mid); margin-bottom: .6rem; }
.skill-bar { height: 4px; background: var(--border); border-radius: 4px; overflow: hidden; }
.skill-fill { height: 100%; border-radius: 4px; width: 0; transition: width 1.4s cubic-bezier(.4, 0, .2, 1); }
.skill-pct { font-size: .7rem; color: var(--teal); font-weight: 700; margin-top: .35rem; }
.skills-loading { grid-column: 1/-1; text-align: center; color: var(--muted); padding: 2rem; font-size: .9rem; }

.projects { padding: 100px 0; }
.projects-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 30px; }
.project-card { background: #fff; border-radius: 18px; overflow: hidden; border: 1px solid #e5e7eb; transition: 0.4s; }
.project-card:hover { transform: translateY(-8px); box-shadow: 0 20px 40px rgba(0,0,0,.12); }
.project-img { height: 230px; overflow: hidden; }
.project-img img { width: 100%; height: 100%; object-fit: cover; transition: .5s; }
.project-card:hover .project-img img { transform: scale(1.08); }
.project-info { padding: 22px; }
.project-info h3 { font-size: 24px; margin-bottom: 10px; color: #0f172a; }
.project-info p { color: #64748b; line-height: 1.7; margin-bottom: 20px; }
.demo-btn { display: inline-block; padding: 12px 24px; background: #0ea5a4; color: #fff; text-decoration: none; border-radius: 30px; transition: .3s; }
.demo-btn:hover { background: #0f766e; }

.test-overflow { overflow: hidden; }
.test-track { display: flex; gap: 1.5rem; transition: transform .55s cubic-bezier(.4, 0, .2, 1); }
.test-card { min-width: calc(50% - .75rem); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 1.75rem; background: var(--bg); flex-shrink: 0; }
.test-stars { color: #f59e0b; font-size: .85rem; margin-bottom: .8rem; }
.test-quote { font-size: .88rem; color: var(--mid); line-height: 1.72; margin-bottom: 1.25rem; font-style: italic; }
.test-author { display: flex; align-items: center; gap: .75rem; }
.test-avatar { width: 42px; height: 42px; border-radius: 50%; background: var(--teal-pale); display: flex; align-items: center; justify-content: center; font-size: 1.3rem; flex-shrink: 0; }
.test-name { font-size: .88rem; font-weight: 600; color: var(--dark); }
.test-role { font-size: .75rem; color: var(--muted); }
.test-nav { display: flex; align-items: center; justify-content: center; gap: 1rem; margin-top: 1.5rem; }
.test-btn { width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--border); background: var(--white); color: var(--muted); font-size: .8rem; display: flex; align-items: center; justify-content: center; transition: all var(--transition); }
.test-btn:hover { background: var(--teal); color: var(--white); border-color: var(--teal); }
.test-dots { display: flex; gap: .5rem; }
.test-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--border); transition: all var(--transition); border: none; cursor: pointer; }
.test-dot.active { background: var(--teal); width: 22px; border-radius: 4px; }

.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 3rem; align-items: start; }
.contact-info, .contact-form { min-width: 0; }
.ci-item { display: flex; gap: 1rem; align-items: flex-start; margin-bottom: 1.75rem; }
.ci-icon { width: 46px; height: 46px; border-radius: 50%; background: var(--teal-pale); color: var(--teal); font-size: .88rem; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.ci-label { font-size: .72rem; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .06em; }
.ci-value { font-size: .88rem; color: var(--dark); font-weight: 500; margin-top: .2rem; overflow-wrap: break-word; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { margin-bottom: 1.1rem; }
label { font-size: .78rem; font-weight: 600; color: var(--mid); display: block; margin-bottom: .4rem; text-transform: uppercase; letter-spacing: .05em; }
input, textarea { width: 100%; padding: .8rem 1rem; border: 1.5px solid var(--border); border-radius: var(--radius-sm); font-size: .88rem; color: var(--dark); background: var(--bg); font-family: 'Inter', sans-serif; transition: border-color var(--transition), box-shadow var(--transition); resize: vertical; }
input::placeholder, textarea::placeholder { color: #94a3b8; }
input:focus, textarea:focus { outline: none; border-color: var(--teal); box-shadow: 0 0 0 3px rgba(13, 148, 136, .1); }
input.error, textarea.error { border-color: #ef4444; }
textarea { min-height: 130px; }
.field-error { font-size: .72rem; color: #ef4444; margin-top: .25rem; display: block; min-height: 1rem; }
#submitBtn:disabled { opacity: .6; cursor: not-allowed; }

.cta-banner { background: var(--dark); padding: 4rem 0; margin: 0 0 2.5rem; }
.cta-inner { text-align: center; }
.cta-inner h2 { font-family: 'Space Grotesk', sans-serif; font-size: clamp(1.3rem, 2.4vw, 1.9rem); font-weight: 800; color: var(--white); line-height: 1.35; margin-bottom: .9rem; }
.cta-inner h2 span { color: var(--teal-light); }
.cta-inner p { color: #94a3b8; font-size: .88rem; margin-bottom: 1.75rem; max-width: 480px; margin-left: auto; margin-right: auto; }

footer { padding: 1.5rem 0; border-top: 1px solid var(--border); }
.footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: .5rem; font-size: .78rem; color: var(--muted); }
.heart { animation: heartbeat 1.5s ease-in-out infinite; display: inline-block; }
@keyframes heartbeat { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.3); } }

.toast { position: fixed; bottom: 2rem; right: 2rem; z-index: 200; background: var(--dark); color: var(--white); padding: .9rem 1.5rem; border-radius: var(--radius-sm); font-size: .84rem; font-weight: 500; transform: translateY(80px); opacity: 0; transition: all .35s cubic-bezier(.4, 0, .2, 1); max-width: 320px; box-shadow: 0 8px 24px rgba(0, 0, 0, .2); border-left: 3px solid var(--teal); }
.toast.show { transform: translateY(0); opacity: 1; }
.toast.error { border-left-color: #ef4444; }

.back-top { position: fixed; bottom: 2rem; left: 2rem; z-index: 100; width: 42px; height: 42px; border-radius: 50%; background: var(--teal); color: var(--white); border: none; font-size: .8rem; display: flex; align-items: center; justify-content: center; opacity: 0; transform: translateY(20px); pointer-events: none; transition: all var(--transition); box-shadow: 0 4px 16px rgba(13, 148, 136, .3); }
.back-top.show { opacity: 1; transform: translateY(0); pointer-events: all; }
.back-top:hover { background: var(--teal-dark); transform: translateY(-3px); }

.reveal { opacity: 0; transform: translateY(30px); transition: opacity .65s ease, transform .65s ease; }
.reveal-left { opacity: 0; transform: translateX(-35px); transition: opacity .65s ease, transform .65s ease; }
.reveal-right { opacity: 0; transform: translateX(35px); transition: opacity .65s ease, transform .65s ease; }
.reveal.in, .reveal-left.in, .reveal-right.in { opacity: 1; transform: none; }

@media (max-width: 768px) {
  .hamburger { display: flex; }
  .nav-links { position: fixed; top: var(--nav-h); left: 0; right: 0; background: var(--white); flex-direction: column; gap: 0; padding: 1rem 0; box-shadow: 0 8px 24px rgba(0,0,0,.1); transform: translateY(-120%); transition: transform var(--transition); z-index: 99; }
  .nav-links.open { transform: translateY(0); }
  .nav-links li a { display: block; padding: .85rem 2rem; font-size: .95rem; }
  .hero { grid-template-columns: 1fr; padding: 5.5rem 1.25rem 3rem; gap: 1.5rem; }
  .hero-sidebar { position: static; padding: 2rem 1.5rem; }
  .avatar-wrap { width: 120px; height: 120px; }
  .avatar-wrap img { width: 120px; height: 120px; }
  .hero-name { font-size: 1.25rem; }
  .hero-main { padding: 1.75rem 1.25rem; }
  .hero-title { font-size: 1.7rem; }
  .section-card { padding: 2rem 1.25rem; }
  .services-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; gap: 2rem; }
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .projects-grid { grid-template-columns: 1fr; }
  .test-card { min-width: 100%; }
  .contact-grid { grid-template-columns: 1fr; gap: 2rem; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; text-align: center; }
  .back-top, .toast { bottom: 1.25rem; }
  .back-top { left: 1.25rem; }
  .toast { right: 1.25rem; left: 1.25rem; max-width: 100%; }
}

@media (max-width: 1024px) and (min-width: 769px) {
  .hero { grid-template-columns: 260px 1fr; padding: 6rem 2rem 3rem; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .skills-grid { grid-template-columns: repeat(3, 1fr); }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
}