/* ===========================================================
   Gul Shaid — Portfolio
   Theme tokens ported 1:1 from the original React/Tailwind build
   =========================================================== */

:root{
  --color-ink-950: 5 5 15;
  --color-ink-900: 10 10 24;
  --color-ink-800: 15 16 36;
  --color-ink-700: 22 24 50;
  --color-mist-100: 245 243 255;
  --color-mist-300: 203 213 225;
  --color-mist-400: 148 163 184;
  --color-line: 255 255 255;

  --glass-bg: rgb(var(--color-line) / .04);
  --glass-bg-strong: rgb(var(--color-line) / .06);
  --glass-border: rgb(var(--color-line) / .08);
  --glass-border-strong: rgb(var(--color-line) / .1);

  --electric-400: #38bdf8;
  --violet-500: #8b5cf6;
  --violet-600: #7c3aed;
  --brand-gradient: linear-gradient(135deg, #7c3aed 0%, #0ea5e9 100%);
  --text-gradient: linear-gradient(135deg, #a78bfa 0%, #38bdf8 100%);

  --font-display: "Space Grotesk", sans-serif;
  --font-body: "Inter", sans-serif;
  --font-mono: "JetBrains Mono", monospace;

  --container: 72rem;
  --container-narrow: 48rem;
}

html.light{
  --color-ink-950: 247 247 251;
  --color-ink-900: 255 255 255;
  --color-ink-800: 237 238 246;
  --color-ink-700: 223 225 238;
  --color-mist-100: 15 16 36;
  --color-mist-300: 51 65 85;
  --color-mist-400: 71 85 105;
  --color-line: 15 16 36;

  --glass-bg: rgb(var(--color-line) / .035);
  --glass-bg-strong: rgb(var(--color-line) / .05);
  --glass-border: rgb(var(--color-line) / .1);
  --glass-border-strong: rgb(var(--color-line) / .14);
}

*, *::before, *::after{ box-sizing: border-box; }

html{ scroll-behavior: smooth; }

body{
  margin: 0;
  background-color: rgb(var(--color-ink-950));
  color: rgb(var(--color-mist-100));
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background-color .3s ease, color .3s ease;
}

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; line-height: 1.15; margin: 0 0 .5em; }
p { margin: 0 0 1em; color: rgb(var(--color-mist-300)); }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; margin: 0; padding: 0; }
.mono { font-family: var(--font-mono); font-size: .8em; color: rgb(var(--color-mist-400)); }

.container{
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}
.container-narrow{ max-width: var(--container-narrow); }

.text-gradient{
  background: var(--text-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.center{ text-align: center; }

.section-eyebrow{
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--electric-400);
  margin-bottom: .75rem;
}

.section{ padding: 6rem 0; }
.section-alt{ background: rgb(var(--color-ink-900)); }
.section h2{ font-size: 2rem; max-width: 40rem; }
.section-alt h2, .section .center h2, h2.center{ margin-left: auto; margin-right: auto; }

/* ---------- glass utility ---------- */
.glass{
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.glass-strong{
  background: var(--glass-bg-strong);
  border: 1px solid var(--glass-border-strong);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

/* ---------- buttons ---------- */
.btn{
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .8rem 1.6rem;
  border-radius: .75rem;
  font-weight: 600;
  font-size: .95rem;
  border: none;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background-color .15s ease;
}
.btn-primary{
  background-image: var(--brand-gradient);
  color: #fff;
  box-shadow: 0 0 40px -10px rgb(139 92 246 / .5);
}
.btn-primary:hover{ transform: translateY(-2px); box-shadow: 0 0 48px -8px rgb(139 92 246 / .65); }
.btn-ghost{
  background: transparent;
  border: 1px solid var(--glass-border-strong);
  color: rgb(var(--color-mist-100));
}
.btn-ghost:hover{ background: rgb(var(--color-line) / .08); }
.btn-sm{ padding: .5rem 1.1rem; font-size: .85rem; }
.btn-block{ width: 100%; justify-content: center; }
.btn-whatsapp{
  background: #25D366; color: #fff; margin-top: 1.5rem;
}
.btn-whatsapp:hover{ transform: scale(1.02); }

.icon-btn{
  display: inline-flex; align-items: center; justify-content: center;
  width: 2.5rem; height: 2.5rem; border-radius: 999px;
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  color: rgb(var(--color-mist-300));
  cursor: pointer; transition: color .15s ease, background-color .15s ease;
}
.icon-btn:hover{ color: var(--electric-400); background: rgb(var(--color-line) / .1); }

/* ===================== HEADER ===================== */
.site-header{
  position: sticky; top: 0; z-index: 50;
  background: rgb(var(--color-ink-950) / .7);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
}
.header-inner{
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.1rem 1.5rem;
}
.brand{ display: flex; align-items: center; gap: .6rem; }
.brand-mark{
  display: inline-flex; align-items: center; justify-content: center;
  width: 2.25rem; height: 2.25rem; border-radius: .6rem;
  background: rgb(var(--color-ink-950)); color: transparent;
  background-image: var(--brand-gradient);
  -webkit-background-clip: text; background-clip: text;
  font-family: var(--font-mono); font-weight: 700; font-size: .95rem;
  border: 1px solid var(--glass-border-strong);
}
.brand-name{ font-family: var(--font-display); font-weight: 700; font-size: 1.05rem; }

.main-nav ul{ display: flex; gap: 1.75rem; }
.main-nav a{
  font-size: .92rem; color: rgb(var(--color-mist-300));
  transition: color .15s ease;
}
.main-nav a:hover{ color: var(--electric-400); }

.header-actions{ display: flex; align-items: center; gap: .75rem; }
.mobile-menu-btn{ display: none; }

.mobile-nav{
  display: none;
  border-top: 1px solid var(--glass-border);
  background: rgb(var(--color-ink-950) / .96);
}
.mobile-nav ul{ display: flex; flex-direction: column; padding: 1rem 1.5rem; gap: .25rem; }
.mobile-nav a{
  display: block; padding: .65rem 0;
  color: rgb(var(--color-mist-300)); font-size: .95rem;
}
.mobile-nav.open{ display: block; }

@media (max-width: 860px){
  .main-nav{ display: none; }
  .header-actions .btn{ display: none; }
  .mobile-menu-btn{ display: inline-flex; }
}

/* ===================== HERO ===================== */
.hero{
  position: relative; overflow: hidden;
  padding: 6rem 0 5rem;
}
.hero-glow{
  position: absolute; inset: 0; z-index: -1;
  background-image:
    radial-gradient(circle at 20% 20%, rgb(139 92 246 / .25), transparent 40%),
    radial-gradient(circle at 80% 30%, rgb(14 165 233 / .2), transparent 40%);
}
.hero-inner{ max-width: 46rem; }
.eyebrow{
  font-family: var(--font-mono); font-size: .78rem; letter-spacing: .25em;
  text-transform: uppercase; color: var(--electric-400); margin-bottom: 1.25rem;
}
.hero-title{ font-size: clamp(2.2rem, 5vw, 3.5rem); letter-spacing: -.02em; margin-bottom: 1rem; }
.hero-tagline{ font-size: 1.2rem; color: rgb(var(--color-mist-100)); margin-bottom: .75rem; }
.hero-summary{ max-width: 40rem; }
.hero-actions{ display: flex; gap: 1rem; flex-wrap: wrap; margin: 2rem 0 3rem; }

.hero-stats{
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem 2rem;
  max-width: 34rem; margin: 0;
}
@media (min-width: 640px){ .hero-stats{ grid-template-columns: repeat(4, 1fr); } }
.stat dt{ font-size: .8rem; color: rgb(var(--color-mist-400)); margin-bottom: .25rem; }
.stat dd{ margin: 0; font-family: var(--font-display); font-size: 1.8rem; font-weight: 700; }

/* ===================== ABOUT ===================== */
.about-grid{
  display: grid; gap: 3rem; align-items: start;
  grid-template-columns: 1fr;
}
@media (min-width: 860px){
  .about-grid{ grid-template-columns: 18rem 1fr; }
}
.about-photo-wrap{ display: flex; justify-content: center; }
.about-photo{
  width: 100%; max-width: 16rem; aspect-ratio: 1; object-fit: cover;
  border-radius: 1.5rem; border: 1px solid var(--glass-border-strong);
}
.about-copy h3{ margin-top: 2rem; font-size: 1.15rem; }
.experience-item, .education-item{
  padding: 1.25rem 1.5rem; border-radius: 1rem;
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  margin-top: .75rem;
}
.experience-head{ display: flex; flex-wrap: wrap; justify-content: space-between; gap: .5rem; align-items: baseline; margin-bottom: .5rem; }
.experience-head h4, .education-item h4{ margin: 0; font-size: 1rem; }
.experience-item ul{ display: flex; flex-direction: column; gap: .4rem; }
.experience-item li{
  position: relative; padding-left: 1.1rem; font-size: .93rem; color: rgb(var(--color-mist-300));
}
.experience-item li::before{
  content: ""; position: absolute; left: 0; top: .55em;
  width: .35rem; height: .35rem; border-radius: 999px; background: var(--electric-400);
}

/* ===================== SKILLS ===================== */
.skills-grid{
  display: grid; gap: 2rem; margin-top: 3rem;
  grid-template-columns: 1fr;
}
@media (min-width: 768px){ .skills-grid{ grid-template-columns: repeat(3, 1fr); } }
.skill-group{
  padding: 1.75rem; border-radius: 1.25rem;
  background: var(--glass-bg); border: 1px solid var(--glass-border);
}
.skill-group h3{ font-size: 1.05rem; margin-bottom: 1.25rem; }
.skill-list{ display: flex; flex-direction: column; gap: 1.1rem; }
.skill-row{ display: flex; justify-content: space-between; font-size: .9rem; margin-bottom: .4rem; }
.skill-bar{
  height: .4rem; border-radius: 999px; background: rgb(var(--color-line) / .1); overflow: hidden;
}
.skill-bar span{
  display: block; height: 100%; width: 0; border-radius: 999px;
  background-image: var(--brand-gradient);
  transition: width 1s cubic-bezier(.22,1,.36,1);
}
.skill-bar.in-view span{ width: var(--level); }

/* ===================== PROJECTS ===================== */
.project-grid{
  display: grid; gap: 2rem; margin-top: 3rem;
  grid-template-columns: 1fr;
}
@media (min-width: 768px){ .project-grid{ grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px){ .project-grid{ grid-template-columns: repeat(3, 1fr); } }
.project-card{
  border-radius: 1.25rem; overflow: hidden;
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  transition: transform .2s ease, box-shadow .2s ease;
  display: flex; flex-direction: column;
}
.project-card:hover{ transform: translateY(-6px); box-shadow: 0 20px 40px -20px rgb(0 0 0 / .5); }
.project-image-link{ display: block; }
.project-image{ width: 100%; height: 13rem; object-fit: cover; }
.project-body{ padding: 1.5rem; flex: 1; display: flex; flex-direction: column; }
.tag{
  display: inline-block; align-self: flex-start;
  font-family: var(--font-mono); font-size: .7rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--electric-400); background: rgb(56 189 248 / .12);
  padding: .25rem .6rem; border-radius: .4rem; margin-bottom: .75rem;
}
.project-body h3{ font-size: 1.1rem; margin-bottom: .5rem; }
.tech-list{ display: flex; flex-wrap: wrap; gap: .4rem; margin: 1rem 0 .5rem; }
.tech-list li{
  font-size: .75rem; padding: .25rem .6rem; border-radius: .4rem;
  border: 1px solid var(--glass-border-strong); color: rgb(var(--color-mist-300));
}
.project-link{
  margin-top: auto; font-weight: 600; font-size: .9rem; color: var(--electric-400);
  align-self: flex-start;
}
.project-link:hover{ text-decoration: underline; }

/* ===================== SERVICES ===================== */
.services-grid{
  display: grid; gap: 2rem; margin-top: 3rem;
  grid-template-columns: 1fr;
}
@media (min-width: 768px){ .services-grid{ grid-template-columns: repeat(3, 1fr); } }
.service-card{
  padding: 2rem; border-radius: 1.25rem; text-align: center;
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  transition: transform .2s ease;
}
.service-card:hover{ transform: translateY(-4px); }
.service-icon{
  width: 3.25rem; height: 3.25rem; margin: 0 auto 1.25rem;
  display: flex; align-items: center; justify-content: center;
  border-radius: 999px; color: #fff; background-image: var(--brand-gradient);
}
.service-card h3{ font-size: 1.05rem; }
.price{ font-family: var(--font-mono); color: var(--electric-400); font-weight: 600; margin-top: 1rem; }

/* ===================== TESTIMONIALS ===================== */
.testimonial-grid{
  display: grid; gap: 2rem; margin-top: 3rem;
  grid-template-columns: 1fr;
}
@media (min-width: 768px){ .testimonial-grid{ grid-template-columns: repeat(3, 1fr); } }
.testimonial-card{
  margin: 0; padding: 1.75rem; border-radius: 1.25rem;
  background: var(--glass-bg); border: 1px solid var(--glass-border);
}
.stars{ color: #fbbf24; letter-spacing: .15em; margin-bottom: .75rem; }
.testimonial-card blockquote{ margin: 0 0 1.25rem; font-size: .95rem; color: rgb(var(--color-mist-100)); }
.testimonial-card figcaption{ display: flex; flex-direction: column; font-size: .85rem; }
.t-name{ font-weight: 600; }
.t-company{ color: rgb(var(--color-mist-400)); }

/* ===================== FAQ ===================== */
.faq-list{ margin-top: 3rem; display: flex; flex-direction: column; gap: 1rem; }
.faq-item{
  padding: 1.25rem 1.5rem; border-radius: 1rem;
  background: var(--glass-bg); border: 1px solid var(--glass-border);
}
.faq-item summary{
  cursor: pointer; font-weight: 600; list-style: none;
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
}
.faq-item summary::-webkit-details-marker{ display: none; }
.faq-item summary::after{
  content: "+"; font-size: 1.3rem; color: var(--electric-400); flex-shrink: 0;
  transition: transform .2s ease;
}
.faq-item[open] summary::after{ transform: rotate(45deg); }
.faq-item p{ margin: 1rem 0 0; }

/* ===================== CONTACT ===================== */
.contact-grid{
  display: grid; gap: 3rem;
  grid-template-columns: 1fr;
}
@media (min-width: 860px){ .contact-grid{ grid-template-columns: 1.1fr .9fr; } }
.contact-lead{ font-size: 1.05rem; color: rgb(var(--color-mist-100)); }
.contact-details{ display: flex; flex-direction: column; gap: 1rem; margin: 1.5rem 0; }
.contact-details li{ display: flex; align-items: center; gap: .75rem; color: rgb(var(--color-mist-300)); }
.contact-details a:hover{ color: var(--electric-400); }

.contact-form{
  display: flex; flex-direction: column; gap: .35rem;
  padding: 2rem; border-radius: 1.25rem;
  background: var(--glass-bg-strong); border: 1px solid var(--glass-border-strong);
}
.contact-form label{ font-size: .85rem; color: rgb(var(--color-mist-300)); margin-top: .75rem; }
.contact-form input, .contact-form textarea{
  width: 100%; padding: .7rem .9rem; border-radius: .6rem;
  background: rgb(var(--color-line) / .05); border: 1px solid var(--glass-border-strong);
  color: rgb(var(--color-mist-100)); font: inherit; outline: none;
  transition: border-color .15s ease;
}
.contact-form input:focus, .contact-form textarea:focus{ border-color: var(--violet-500); }
.contact-form textarea{ resize: vertical; }
.contact-form .btn{ margin-top: 1.25rem; }
.form-note{ font-size: .85rem; color: var(--electric-400); min-height: 1.2em; margin-top: .6rem; }

/* ===================== FOOTER ===================== */
.site-footer{
  border-top: 1px solid var(--glass-border);
  padding: 3rem 0 1.5rem;
  background: rgb(var(--color-ink-900));
}
.footer-inner{
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 2rem;
}
.footer-tagline{ margin-top: .5rem; font-size: .9rem; }
.footer-inner nav{ display: flex; gap: 1.5rem; flex-wrap: wrap; }
.footer-inner nav a, .footer-social a{ font-size: .9rem; color: rgb(var(--color-mist-300)); }
.footer-inner nav a:hover, .footer-social a:hover{ color: var(--electric-400); }
.footer-social{ display: flex; gap: 1.5rem; }
.footer-copyright{
  text-align: center; margin: 2.5rem 0 0; font-size: .8rem; color: rgb(var(--color-mist-400));
}

/* ===================== BACK TO TOP ===================== */
.back-to-top{
  position: fixed; right: 1.5rem; bottom: 1.5rem; z-index: 40;
  width: 2.75rem; height: 2.75rem; border-radius: 999px;
  display: flex; align-items: center; justify-content: center;
  background: var(--glass-bg-strong); border: 1px solid var(--glass-border-strong);
  color: rgb(var(--color-mist-100)); cursor: pointer;
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: opacity .2s ease, transform .2s ease, visibility .2s ease;
}
.back-to-top.visible{ opacity: 1; visibility: visible; transform: translateY(0); }

/* ===================== REVEAL ANIMATION ===================== */
.reveal{ opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in-view{ opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  .reveal, .skill-bar span, .project-card, .service-card, .back-to-top{ transition: none !important; }
}