/*
Theme Name: Saif Portfolio
Theme URI: https://example.com
Author: Saif
Author URI: https://example.com
Description: A single-page portfolio theme for a Project Management & Business Intelligence professional. Dark navy base with a teal signal accent, built around a dashboard-metric visual language.
Version: 1.0
Requires at least: 6.0
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: LICENSE
Text Domain: saif-portfolio
*/

/* ============================================
   0. DESIGN TOKENS
   ============================================ */
:root {
  /* Color */
  --bg-deep:      #0a0e1a;
  --bg-base:      #0f1420;
  --bg-panel:     #141b2c;
  --bg-panel-2:   #1a2338;
  --line:         #253048;
  --line-soft:    #1c2438;
  --teal:         #2dd4bf;
  --teal-soft:    #5eead4;
  --teal-dim:     rgba(45, 212, 191, 0.12);
  --ink:          #f4f7fb;
  --ink-dim:      #aab4c8;
  --ink-faint:    #6b7690;

  /* Type */
  --font-display: 'Space Grotesk', 'Segoe UI', sans-serif;
  --font-body:    'Inter', 'Segoe UI', sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, monospace;

  /* Scale */
  --step--1: clamp(0.8rem, 0.78rem + 0.1vw, 0.875rem);
  --step-0:  clamp(1rem, 0.96rem + 0.2vw, 1.05rem);
  --step-1:  clamp(1.25rem, 1.15rem + 0.5vw, 1.5rem);
  --step-2:  clamp(1.75rem, 1.5rem + 1.2vw, 2.25rem);
  --step-3:  clamp(2.5rem, 2rem + 2.2vw, 3.75rem);

  --radius: 10px;
  --radius-sm: 6px;
  --maxw: 1120px;
}

/* ============================================
   1. RESET
   ============================================ */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg-deep);
  color: var(--ink-dim);
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.6;
  background-image:
    radial-gradient(ellipse 900px 500px at 12% -10%, rgba(45,212,191,0.08), transparent 60%),
    radial-gradient(ellipse 700px 500px at 100% 20%, rgba(45,212,191,0.05), transparent 60%);
  background-attachment: fixed;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--ink);
  margin: 0;
  line-height: 1.15;
  letter-spacing: -0.01em;
}
button { font-family: inherit; cursor: pointer; }
::selection { background: var(--teal-dim); color: var(--ink); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

/* ============================================
   2. LAYOUT HELPERS
   ============================================ */
.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 clamp(20px, 5vw, 40px);
}
.section {
  padding: clamp(64px, 10vw, 120px) 0;
  border-top: 1px solid var(--line-soft);
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 14px;
}
.eyebrow::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 3px var(--teal-dim);
}
.section-title {
  font-size: var(--step-2);
  max-width: 24ch;
  margin-bottom: 40px;
}

/* ============================================
   3. HEADER / NAV
   ============================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 14, 26, 0.78);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-soft);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--ink);
}
.brand-mark {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--teal), #17877a);
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--bg-deep);
  font-weight: 700;
}
.primary-nav ul { display: flex; gap: 32px; }
.primary-nav a {
  font-size: var(--step--1);
  color: var(--ink-dim);
  font-weight: 500;
  transition: color 0.15s ease;
  position: relative;
}
.primary-nav a:hover, .primary-nav a:focus-visible { color: var(--ink); }
.primary-nav a:focus-visible { outline: 2px solid var(--teal); outline-offset: 4px; border-radius: 3px; }

.nav-cta {
  border: 1px solid var(--line);
  padding: 9px 18px;
  border-radius: 999px;
  font-size: var(--step--1);
  color: var(--ink);
  transition: border-color 0.15s ease, background 0.15s ease;
}
.nav-cta:hover { border-color: var(--teal); background: var(--teal-dim); }

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  color: var(--ink);
}

@media (max-width: 780px) {
  .primary-nav { display: none; }
  .menu-toggle { display: inline-flex; }
  .nav-cta { display: none; }
  .site-header.is-open .primary-nav {
    display: block;
    position: absolute;
    top: 72px; left: 0; right: 0;
    background: var(--bg-panel);
    border-bottom: 1px solid var(--line);
  }
  .site-header.is-open .primary-nav ul {
    flex-direction: column;
    gap: 0;
    padding: 8px 0;
  }
  .site-header.is-open .primary-nav a {
    display: block;
    padding: 14px 24px;
    border-top: 1px solid var(--line-soft);
  }
}

/* ============================================
   4. HERO
   ============================================ */
.hero {
  padding: clamp(72px, 12vw, 140px) 0 clamp(48px, 8vw, 90px);
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 48px;
  align-items: center;
}
.hero-title {
  font-size: var(--step-3);
  color: var(--ink);
}
.hero-title .accent { color: var(--teal); }
.hero-role {
  font-family: var(--font-mono);
  color: var(--teal-soft);
  font-size: var(--step--1);
  margin-top: 16px;
  letter-spacing: 0.02em;
}
.hero-desc {
  margin-top: 20px;
  max-width: 52ch;
  font-size: 1.05rem;
}
.hero-actions { display: flex; gap: 14px; margin-top: 32px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: var(--radius-sm);
  font-size: var(--step--1);
  font-weight: 600;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.btn-primary {
  background: var(--teal);
  color: var(--bg-deep);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 24px -8px rgba(45,212,191,0.5); }
.btn-ghost {
  border: 1px solid var(--line);
  color: var(--ink);
}
.btn-ghost:hover { border-color: var(--teal); color: var(--teal-soft); }

/* Dashboard-style metric card — signature element */
.metric-card {
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  position: relative;
  overflow: hidden;
}
.metric-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 22px 22px;
  opacity: 0.35;
  mask-image: radial-gradient(circle at 100% 0%, black, transparent 70%);
}
.metric-card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--ink-faint);
  position: relative;
  margin-bottom: 18px;
}
.metric-live {
  display: inline-flex; align-items: center; gap: 6px; color: var(--teal-soft);
}
.metric-live::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--teal); animation: pulse 1.8s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.3; } }
.metric-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.metric-num {
  font-family: var(--font-mono);
  font-size: 1.9rem;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.metric-label {
  font-size: 0.78rem;
  color: var(--ink-faint);
  margin-top: 4px;
}

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
}

/* ============================================
   5. ABOUT / EXPERIENCE TIMELINE
   ============================================ */
.timeline { display: flex; flex-direction: column; }
.timeline-item {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 24px;
  padding: 26px 0;
  border-top: 1px solid var(--line-soft);
}
.timeline-item:first-child { border-top: none; }
.timeline-date {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--teal-soft);
}
.timeline-role { color: var(--ink); font-weight: 600; font-size: 1.05rem; }
.timeline-org { color: var(--ink-faint); font-size: var(--step--1); margin-top: 2px; }
.timeline-desc { margin-top: 10px; max-width: 62ch; }

/* ============================================
   6. PROJECTS
   ============================================ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}
.project-card {
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.project-card:hover { border-color: var(--teal); transform: translateY(-4px); }
.project-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--teal-dim);
  color: var(--teal-soft);
  letter-spacing: 0.03em;
}
.project-title { font-size: 1.2rem; color: var(--ink); margin-bottom: 10px; }
.project-stats {
  display: flex;
  gap: 24px;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--line-soft);
}
.project-stat .metric-num { font-size: 1.3rem; }
.project-stat .metric-label { font-size: 0.72rem; }

/* ============================================
   7. SKILLS
   ============================================ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}
.skill-group {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  background: var(--bg-panel);
}
.skill-group h3 { font-size: 0.95rem; color: var(--teal-soft); font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.05em; font-weight: 500; }
.skill-group ul { margin-top: 14px; display: flex; flex-direction: column; gap: 10px; }
.skill-group li { color: var(--ink-dim); font-size: var(--step--1); display: flex; align-items: center; gap: 10px; }
.skill-group li::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--teal); flex-shrink: 0; }

/* ============================================
   8. EDUCATION
   ============================================ */
.edu-card {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  background: var(--bg-panel);
  flex-wrap: wrap;
}
.edu-degree { color: var(--ink); font-size: 1.1rem; font-weight: 600; }
.edu-school { color: var(--ink-faint); margin-top: 4px; }
.edu-score {
  font-family: var(--font-mono);
  text-align: right;
}
.edu-score .metric-num { font-size: 1.5rem; }

/* ============================================
   9. CONTACT / FOOTER
   ============================================ */
.site-footer {
  border-top: 1px solid var(--line-soft);
  background: var(--bg-base);
}
.contact-section {
  padding: clamp(64px, 10vw, 120px) 0;
  text-align: center;
}
.contact-title { font-size: var(--step-2); max-width: 20ch; margin: 0 auto 18px; }
.contact-desc { max-width: 48ch; margin: 0 auto 32px; }
.contact-links {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-bottom {
  border-top: 1px solid var(--line-soft);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--ink-faint);
}
.footer-socials { display: flex; gap: 18px; }
.footer-socials a:hover { color: var(--teal-soft); }

@media (max-width: 600px) {
  .footer-bottom { flex-direction: column; text-align: center; }
  .timeline-item { grid-template-columns: 1fr; gap: 6px; }
}
.hero-image {
    width: 320px;
    height: 320px;
    border-radius: 20px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}