/* ==========================================================================
   Komal Portfolio — Magazine-style theme
   ========================================================================== */

/* --- CSS Variables --- */
:root {
  --accent: #E63946;
  --bg: #ffffff;
  --bg-alt: #f7f7f7;
  --text: #1a1a1a;
  --text-secondary: #555555;
  --text-muted: #888888;
  --border: #e0e0e0;
  --card-bg: #ffffff;
  --code-bg: #f4f4f4;
  --font-heading: 'DM Serif Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-width: 1200px;
  --nav-height: 72px;
  --transition: 0.2s ease;
}

[data-theme="dark"] {
  --bg: #0f0f0f;
  --bg-alt: #1a1a1a;
  --text: #f0f0f0;
  --text-secondary: #b0b0b0;
  --text-muted: #777777;
  --border: #2a2a2a;
  --card-bg: #1a1a1a;
  --code-bg: #1e1e1e;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.7;
  transition: background-color var(--transition), color var(--transition);
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--text);
}

[data-theme="dark"] a:hover {
  color: #ffffff;
}

img {
  max-width: 100%;
  display: block;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.15;
  color: var(--text);
}

/* --- Utility --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.text-link {
  font-weight: 500;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 2px;
  transition: border-color var(--transition), color var(--transition);
}

.text-link:hover {
  color: var(--accent);
  border-color: transparent;
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.btn--primary {
  background-color: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}

.btn--primary:hover {
  background-color: transparent;
  color: var(--accent);
}

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

.btn--outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* --- Tags --- */
.tag {
  display: inline-block;
  padding: 0.25rem 0.7rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background-color: var(--bg-alt);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  transition: all var(--transition);
}

/* ==========================================================================
   Navigation
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: var(--bg);
  border-bottom: 1px solid var(--border);
  transition: background-color var(--transition);
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
}

.nav-logo:hover {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  letter-spacing: 0.01em;
  position: relative;
  padding-bottom: 4px;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent);
  transition: width var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Theme toggle */
.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  padding: 0.4rem;
  display: flex;
  align-items: center;
  transition: color var(--transition);
}

.theme-toggle:hover {
  color: var(--accent);
}

.icon-moon {
  display: none;
}

[data-theme="dark"] .icon-sun {
  display: none;
}

[data-theme="dark"] .icon-moon {
  display: block;
}

/* Hamburger */
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  flex-direction: column;
  gap: 5px;
  z-index: 1001;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text);
  transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  padding-top: calc(var(--nav-height) + 6rem);
  padding-bottom: 6rem;
  border-bottom: 1px solid var(--border);
}

.hero__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.hero__name {
  font-size: clamp(3.5rem, 10vw, 8rem);
  line-height: 1;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.hero__tagline {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  color: var(--text-secondary);
  font-weight: 400;
  max-width: 600px;
  margin-bottom: 2.5rem;
}

.hero__ctas {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.hero__cta {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  border-bottom: 2px solid var(--accent);
  padding-bottom: 4px;
  transition: color var(--transition), border-color var(--transition);
}

.hero__cta:hover {
  color: var(--accent);
}

/* ==========================================================================
   Sections
   ========================================================================== */
.section {
  padding: 5rem 0;
}

.section__header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 3rem;
  gap: 1rem;
}

.section__title {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.02em;
}

.section__link {
  font-size: 0.95rem;
  font-weight: 500;
  white-space: nowrap;
}

/* --- Page Header --- */
.page-header {
  padding-top: calc(var(--nav-height) + 4rem);
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--border);
}

.page-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  letter-spacing: -0.03em;
  margin-bottom: 0.75rem;
}

.page-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 550px;
}

.page-header .btn {
  margin-top: 1.5rem;
}

/* ==========================================================================
   Project Cards
   ========================================================================== */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 2rem;
}

.project-grid--full {
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
}

.project-card {
  border: 1px solid var(--border);
  background-color: var(--card-bg);
  transition: all var(--transition);
}

.project-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}

.project-card__link {
  display: block;
  text-decoration: none;
  color: inherit;
  height: 100%;
}

.project-card__content {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.project-card__title {
  font-size: 1.6rem;
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
  line-height: 1.25;
}

.project-card__desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  flex-grow: 1;
  margin-bottom: 1.5rem;
}

.project-card__cta {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
  transition: color var(--transition);
}

.project-card:hover .project-card__cta {
  color: var(--text);
}

/* Featured card styling — first card spans full width on large grids */
.project-grid--full .project-card--featured:first-child {
  grid-column: 1 / -1;
}

.project-grid--full .project-card--featured:first-child .project-card__content {
  padding: 3rem;
}

.project-grid--full .project-card--featured:first-child .project-card__title {
  font-size: 2.2rem;
}

/* ==========================================================================
   Project Single
   ========================================================================== */
.project-single {
  padding-top: calc(var(--nav-height) + 4rem);
  padding-bottom: 5rem;
}

.project-single__header {
  padding-bottom: 3rem;
  margin-bottom: 3rem;
  border-bottom: 1px solid var(--border);
}

.project-single__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.project-single__title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.project-single__desc {
  font-size: 1.2rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 700px;
  margin-bottom: 2rem;
}

.project-single__links {
  display: flex;
  gap: 1rem;
}

/* ==========================================================================
   Page Content (prose)
   ========================================================================== */
.page-content {
  max-width: 750px;
}

.page-content h2 {
  font-size: 1.8rem;
  margin-top: 3rem;
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}

.page-content h3 {
  font-size: 1.3rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.page-content p {
  margin-bottom: 1.25rem;
  color: var(--text-secondary);
}

.page-content ul,
.page-content ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

.page-content li {
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.page-content strong {
  color: var(--text);
  font-weight: 600;
}

.page-content code {
  background-color: var(--code-bg);
  padding: 0.15rem 0.4rem;
  font-size: 0.9em;
  border-radius: 3px;
}

/* Single page (default) */
.page-single {
  padding-top: calc(var(--nav-height) + 4rem);
  padding-bottom: 5rem;
}

.page-single .page-title {
  margin-bottom: 2.5rem;
}

/* ==========================================================================
   About Page
   ========================================================================== */
.about-hero {
  margin-bottom: 4rem;
}

.about-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 4rem;
  align-items: start;
}

.photo-placeholder {
  width: 100%;
  aspect-ratio: 1;
  background-color: var(--bg-alt);
  border: 2px solid var(--border);
  position: relative;
}

.photo-placeholder::after {
  content: 'Photo';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.about-bio h2 {
  font-size: 2rem;
  margin-bottom: 1.25rem;
}

.about-bio p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.7;
}

/* Skills */
.skills-section {
  padding-top: 3rem;
  border-top: 1px solid var(--border);
}

.skills-section > h2 {
  font-size: 2rem;
  margin-bottom: 2.5rem;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2.5rem;
}

.skill-group h3 {
  font-size: 0.85rem;
  font-family: var(--font-body);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* ==========================================================================
   Experience / Timeline
   ========================================================================== */
.timeline-section {
  margin-bottom: 4rem;
}

.timeline-section__title {
  font-size: 0.85rem;
  font-family: var(--font-body);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 2rem;
}

.timeline {
  position: relative;
  padding-left: 2.5rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 0;
  width: 2px;
  background-color: var(--border);
}

.timeline__item {
  position: relative;
  padding-bottom: 3rem;
}

.timeline__item:last-child {
  padding-bottom: 0;
}

.timeline__marker {
  position: absolute;
  left: -2.5rem;
  top: 8px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--bg);
  border: 2px solid var(--accent);
  transform: translateX(-5px);
}

.timeline__period {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.timeline__title {
  font-size: 1.4rem;
  margin-bottom: 0.25rem;
}

.timeline__company {
  font-size: 1rem;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 0.75rem;
}

.timeline__desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 0.75rem;
}

.timeline__highlights {
  list-style: none;
  padding: 0;
}

.timeline__highlights li {
  position: relative;
  padding-left: 1.25rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
  line-height: 1.5;
}

.timeline__highlights li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  background-color: var(--accent);
  border-radius: 50%;
}

/* ==========================================================================
   Contact
   ========================================================================== */
.contact-section {
  padding-top: 3rem;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-card {
  display: block;
  padding: 1.5rem;
  border: 1px solid var(--border);
  text-decoration: none;
  color: inherit;
  transition: all var(--transition);
}

.contact-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.contact-card__label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.contact-card__value {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text);
}

.contact-form h2 {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.form__group {
  margin-bottom: 1.25rem;
}

.form__label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.form__input {
  width: 100%;
  padding: 0.8rem 1rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text);
  background-color: var(--bg);
  border: 1px solid var(--border);
  transition: border-color var(--transition);
  outline: none;
}

.form__input:focus {
  border-color: var(--accent);
}

.form__textarea {
  resize: vertical;
  min-height: 120px;
}

/* ==========================================================================
   Blog
   ========================================================================== */
.blog-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.blog-card {
  border-bottom: 1px solid var(--border);
}

.blog-card:first-child {
  border-top: 1px solid var(--border);
}

.blog-card__link {
  display: block;
  padding: 2rem 0;
  text-decoration: none;
  color: inherit;
  transition: all var(--transition);
}

.blog-card__link:hover {
  padding-left: 1rem;
}

.blog-card__meta {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-bottom: 0.5rem;
}

.blog-card__date,
.blog-card__reading {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.blog-card__title {
  font-size: 1.5rem;
  letter-spacing: -0.01em;
  margin-bottom: 0.5rem;
  transition: color var(--transition);
}

.blog-card__link:hover .blog-card__title {
  color: var(--accent);
}

.blog-card__excerpt {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  max-width: 700px;
  margin-bottom: 0.75rem;
}

.blog-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* Compact variant for homepage */
.blog-card--compact .blog-card__title {
  font-size: 1.3rem;
}

.blog-card--compact .blog-card__link {
  padding: 1.5rem 0;
}

/* Blog single */
.blog-single {
  padding-top: calc(var(--nav-height) + 4rem);
  padding-bottom: 5rem;
}

.blog-single__header {
  padding-bottom: 3rem;
  margin-bottom: 3rem;
  border-bottom: 1px solid var(--border);
}

.blog-single__meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 1.25rem;
}

.blog-single__title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.blog-single__desc {
  font-size: 1.2rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 700px;
  margin-bottom: 1.5rem;
}

.blog-single__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* ==========================================================================
   Intro Blurb
   ========================================================================== */
.intro-blurb {
  background-color: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.intro-blurb__container {
  max-width: 700px;
}

.intro-blurb__content p {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 1.25rem 0;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--accent);
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background-color: var(--bg);
    flex-direction: column;
    align-items: flex-start;
    padding: 6rem 2rem 2rem;
    gap: 1.5rem;
    border-left: 1px solid var(--border);
    transition: right 0.3s ease;
  }

  .nav-links.open {
    right: 0;
  }

  .hamburger {
    display: flex;
  }

  .hero__name {
    font-size: clamp(2.5rem, 12vw, 4.5rem);
  }

  .hero {
    padding-top: calc(var(--nav-height) + 3rem);
    padding-bottom: 3rem;
  }

  .section {
    padding: 3rem 0;
  }

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

  .project-grid--full .project-card--featured:first-child {
    grid-column: 1;
  }

  .project-grid--full .project-card--featured:first-child .project-card__content {
    padding: 2rem;
  }

  .project-grid--full .project-card--featured:first-child .project-card__title {
    font-size: 1.6rem;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .about-photo {
    max-width: 200px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .section__header {
    flex-direction: column;
    gap: 0.5rem;
  }

  .footer-container {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .page-header {
    padding-top: calc(var(--nav-height) + 2rem);
    padding-bottom: 2rem;
  }

  .project-single {
    padding-top: calc(var(--nav-height) + 2rem);
  }

  .page-single {
    padding-top: calc(var(--nav-height) + 2rem);
  }

  .blog-single {
    padding-top: calc(var(--nav-height) + 2rem);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1.25rem;
  }

  .hero__container {
    padding: 0 1.25rem;
  }

  .nav-container {
    padding: 0 1.25rem;
  }

  .footer-container {
    padding: 0 1.25rem;
  }

  .hero__ctas {
    flex-direction: column;
    gap: 1rem;
  }

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

/* ==========================================================================
   Mobile nav overlay
   ========================================================================== */
.nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 999;
}

.nav-overlay.active {
  opacity: 1;
  visibility: visible;
}