/* ============================================
   PORTFOLIO — styles.css
   Udayaditya Parbat | Terminal Aesthetic
   ============================================
   CV: place your PDF at assets/Udayaditya_Parbat_CV.pdf
   ============================================ */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Space+Grotesk:wght@400;500;600;700&display=swap');

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

:root {
  --black: #0c0c0c;
  --black-alt: #111111;
  --white: #ffffff;
  --off-white: #e8e8e8;
  --gray: #888888;
  --gray-dim: #555555;
  --border: #2a2a2a;
  --border-bright: #ffffff;
  --card-bg: #111111;
  --dot-color: rgba(255, 255, 255, 0.12);

  --font-main: 'Inter', sans-serif;
  --font-display: 'Space Grotesk', sans-serif;
  --font-mono: 'Courier New', Courier, monospace;

  --nav-h: 60px;
  --max-w: 920px;
  --section-pad: 80px 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--black);
  color: var(--white);
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── Container ── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Utility ── */
.dot-bg {
  background-image: radial-gradient(circle, var(--dot-color) 1px, transparent 1px);
  background-size: 22px 22px;
}

/* ============================================
   NAVIGATION
   ============================================ */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-h);
  background: var(--black);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.08em;
  color: var(--white);
  text-decoration: none;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 32px;
}

.nav-links a {
  font-size: 14px;
  color: var(--gray);
  text-decoration: none;
  font-family: var(--font-main);
  font-weight: 400;
  transition: color 0.2s ease;
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--white);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--white);
}

.nav-settings {
  font-size: 18px;
  cursor: pointer;
  color: var(--gray);
  transition: color 0.2s ease;
}

.nav-settings:hover {
  color: var(--white);
}

/* ── Mobile Nav Toggle ── */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--white);
  transition: all 0.3s ease;
}

/* ============================================
   HERO SECTION
   ============================================ */
#home {
  padding-top: calc(var(--nav-h) + 60px);
  padding-bottom: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-content {
  padding-bottom: 60px;
}

.hero-greeting {
  font-family: var(--font-display);
  font-size: clamp(52px, 8vw, 88px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--white);
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--off-white);
  font-weight: 400;
  margin-bottom: 12px;
}

.hero-location {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--gray);
  margin-bottom: 36px;
}

.hero-location svg {
  width: 14px;
  height: 14px;
  fill: var(--gray);
  flex-shrink: 0;
}

.hero-cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  font-size: 14px;
  font-family: var(--font-main);
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--white);
  color: var(--black);
  border-color: var(--white);
}

.btn-primary:hover {
  background: var(--off-white);
  border-color: var(--off-white);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: var(--border-bright);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.05);
}

/* Quick Links */
.quick-links-label {
  font-size: 13px;
  color: var(--gray);
  margin-bottom: 16px;
  font-weight: 400;
}

.quick-links-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-left: 1px solid var(--border);
  border-top: 1px solid var(--border);
}

.quick-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 18px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  color: var(--white);
  font-size: 14px;
  font-weight: 500;
  transition: background 0.2s ease;
}

.quick-link:hover {
  background: rgba(255,255,255,0.04);
}

.quick-link-arrow {
  font-size: 16px;
  color: var(--gray);
  transition: color 0.2s ease;
}

.quick-link:hover .quick-link-arrow {
  color: var(--white);
}

/* ── Divider ── */
.section-divider {
  width: 100%;
  height: 1px;
  background: var(--border);
  margin: 60px 0;
}

/* ============================================
   TERMINAL CARD COMPONENT
   ============================================ */
.term-card {
  border: 1px solid var(--border-bright);
  background: var(--black);
  overflow: hidden;
}

.term-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border-bright);
}

.term-dots {
  display: flex;
  gap: 6px;
}

.term-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1px solid var(--gray-dim);
  background: transparent;
}

.term-filename {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gray);
  letter-spacing: 0.02em;
}

.term-card-body {
  padding: 24px;
}

/* ============================================
   PROJECTS SECTION
   ============================================ */
#projects {
  padding: var(--section-pad);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(48px, 7vw, 80px);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--white);
  margin-bottom: 40px;
  line-height: 1.0;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.project-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border-bright);
  background: var(--black);
  transition: background 0.2s ease;
}

.project-card:hover {
  background: #161616;
}

.project-card .term-card-header {
  border-bottom: 1px solid var(--border-bright);
}

.project-body {
  padding: 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
  line-height: 1.2;
}

.project-desc {
  font-size: 13px;
  color: var(--gray);
  line-height: 1.6;
  margin-bottom: 18px;
  flex: 1;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 20px;
}

.tag {
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--off-white);
  border: 1px solid var(--gray-dim);
  padding: 3px 9px;
  letter-spacing: 0.02em;
}

.project-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: 12px;
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--white);
  border: 1px solid var(--border-bright);
  background: transparent;
  cursor: pointer;
  transition: background 0.2s ease;
  align-self: flex-start;
}

.project-btn:hover {
  background: rgba(255,255,255,0.06);
}

.project-btn-icon {
  font-size: 14px;
}

.project-btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

/* ============================================
   EXPERIENCE SECTION
   ============================================ */
#experience {
  padding: var(--section-pad);
}

.experience-wrapper {
  padding: 40px 0 60px;
}

.experience-wrapper .section-title {
  margin-bottom: 32px;
}

.exp-card .term-card-body {
  padding: 28px;
}

.exp-role {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 4px;
}

.exp-company {
  font-size: 14px;
  color: var(--gray);
  margin-bottom: 14px;
}

.exp-date {
  display: inline-block;
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--off-white);
  border: 1px solid var(--border-bright);
  padding: 4px 12px;
  margin-bottom: 20px;
}

.exp-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.exp-bullets li {
  font-size: 14px;
  color: var(--off-white);
  padding-left: 16px;
  position: relative;
  line-height: 1.6;
}

.exp-bullets li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--gray);
}

/* ============================================
   ABOUT SECTION
   ============================================ */
#about {
  padding: var(--section-pad);
}

.about-wrapper {
  padding: 40px 0 60px;
}

.about-wrapper .section-title {
  margin-bottom: 32px;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.about-text {
  font-size: 14px;
  color: var(--off-white);
  line-height: 1.8;
}

.education-entry {
  margin-top: 8px;
}

.edu-degree {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 4px;
}

.edu-uni {
  font-size: 13px;
  color: var(--gray);
  margin-bottom: 10px;
}

.edu-divider {
  height: 1px;
  background: var(--gray-dim);
  margin: 10px 0;
  border: none;
}

.edu-meta {
  font-size: 13px;
  color: var(--gray);
  font-family: var(--font-mono);
}

/* ============================================
   SKILLS SECTION
   ============================================ */
#skills {
  padding: var(--section-pad);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.skill-category-title {
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--gray);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

/* ============================================
   LEADERSHIP & ACHIEVEMENTS
   ============================================ */
#leadership {
  padding: var(--section-pad);
}

.leadership-card .term-card-body {
  padding: 28px;
}

.leadership-role {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 4px;
}

.leadership-org {
  font-size: 14px;
  color: var(--gray);
  margin-bottom: 16px;
}

.leadership-stats {
  display: flex;
  gap: 32px;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 800;
  color: var(--white);
}

.stat-label {
  font-size: 12px;
  color: var(--gray);
  font-family: var(--font-mono);
}

/* Achievements */
#achievements {
  padding: var(--section-pad);
}

.achievements-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.achievement-body {
  padding: 24px;
}

.achievement-icon {
  font-size: 28px;
  margin-bottom: 12px;
  display: block;
}

.achievement-title {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 6px;
}

.achievement-desc {
  font-size: 13px;
  color: var(--gray);
  line-height: 1.6;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
#contact {
  padding: var(--section-pad);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 8px;
}

.contact-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  color: var(--off-white);
  font-size: 14px;
  transition: color 0.2s ease;
}

.contact-link:hover {
  color: var(--white);
}

.contact-link-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.contact-link-icon {
  font-size: 16px;
  width: 20px;
  text-align: center;
}

.contact-link-label {
  font-size: 13px;
  color: var(--gray);
  font-family: var(--font-mono);
}

/* Contact Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--gray);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.form-input,
.form-textarea {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--white);
  font-family: var(--font-main);
  font-size: 14px;
  padding: 12px 14px;
  outline: none;
  transition: border-color 0.2s ease;
  resize: none;
  width: 100%;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--gray-dim);
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--white);
}

.form-textarea {
  height: 100px;
}

.form-submit {
  align-self: flex-start;
  padding: 12px 24px;
  font-size: 12px;
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--black);
  background: var(--white);
  border: 1px solid var(--white);
  cursor: pointer;
  transition: all 0.2s ease;
}

.form-submit:hover {
  background: var(--off-white);
  border-color: var(--off-white);
}

/* ============================================
   FOOTER
   ============================================ */
footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-copy {
  font-size: 12px;
  color: var(--gray-dim);
  font-family: var(--font-mono);
}

.footer-mono {
  font-size: 12px;
  color: var(--gray-dim);
  font-family: var(--font-mono);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 900px) {
  .projects-grid {
    grid-template-columns: 1fr 1fr;
  }

  .skills-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 700px) {
  :root {
    --section-pad: 56px 0;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: var(--black);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    gap: 0;
    padding: 0;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links li a {
    display: block;
    padding: 14px 24px;
    border-bottom: 1px solid var(--border);
    font-size: 15px;
  }

  .nav-links a.active::after {
    display: none;
  }

  .nav-settings {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .quick-links-grid {
    grid-template-columns: 1fr 1fr;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .achievements-grid {
    grid-template-columns: 1fr;
  }

  .skills-grid {
    grid-template-columns: 1fr 1fr;
  }

  .leadership-stats {
    flex-wrap: wrap;
    gap: 20px;
  }

  .footer-inner {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

@media (max-width: 420px) {
  .quick-links-grid {
    grid-template-columns: 1fr;
  }

  .skills-grid {
    grid-template-columns: 1fr;
  }

  .achievements-grid {
    grid-template-columns: 1fr;
  }

  .hero-cta {
    flex-direction: column;
    align-items: flex-start;
  }
}