/*
Theme Name: Project 2 Theme
Author: Sunyeong Jeon
Description: My DGL233 Project 2 Classic Theme
Version: 1.0
*/

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

html {
  font-size: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-base);
  color: var(--color-contrast);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

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

/* Custom Styles */
:root {
  --color-base: #f8f7ff;
  --color-contrast: #1a1628;
  --color-primary: #8b5cf6;
  --color-secondary: #ec4899;
  --color-tertiary: #06b6d4;
  --color-card-bg: #ffffff;
  --color-border: #e5e5e5;

  --font-body: "Inter", sans-serif;
  --font-heading: "Orbitron", sans-serif;

  --max-width: 900px;
  --section-padding: 3rem 1.25rem;
}

/* Layout */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.section {
  padding: var(--section-padding);
}

/* Typography */
h1,
h2,
h3 {
  font-family: var(--font-heading);
  line-height: 1.2;
}

.section__heading {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 3px solid var(--color-secondary);
  display: inline-block;
}

/* Button */
.btn {
  display: inline-block;
  background-color: var(--color-primary);
  color: var(--color-base);
  font-family: var(--font-heading);
  font-size: 0.875rem;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.btn:hover {
  background-color: var(--color-secondary);
  color: var(--color-base);
}

/* Hero */
.hero {
  padding: 3rem 1.25rem 4rem;
}

.hero__heading {
  font-size: 2rem;
  color: var(--color-secondary);
  margin-bottom: 1rem;
}

.hero__tagline {
  font-size: 1rem;
  margin-bottom: 1.5rem;
  max-width: 480px;
}

/* About */
.about__content {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  margin-top: 2rem;
}

.about__image {
  width: 100%;
  max-width: 200px;
  border-radius: 4px;
  flex-shrink: 0;
}

.about__text {
  font-size: 1rem;
  line-height: 1.7;
}

/* Skills */
.skills__grid {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 2rem;
}

.skill-card {
  background-color: var(--color-card-bg);
  border-radius: 8px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: left;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.skill-card__icon {
  height: 100px;
  width: auto;
  margin-bottom: 1.5rem;
  object-fit: contain;
  align-self: center;
}

.skill-card__title {
  font-size: 1rem;
  margin-bottom: 0.5rem;
  align-self: flex-start;
}

.skill-card__body {
  font-size: 0.9rem;
  line-height: 1.6;
}

/* Education */
.edu-card {
  background-color: var(--color-card-bg);
  border-radius: 8px;
  padding: 2.5rem;
  margin-top: 2rem;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.edu-card__program {
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

.edu-card__years {
  color: var(--color-secondary);
  font-size: 0.9rem;
  margin-bottom: 0.25rem;
}

.edu-card__institution {
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
}

.edu-card__body {
  font-size: 0.9rem;
  line-height: 1.6;
}

/* CTA */
.cta__inner {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.cta__body {
  font-size: 1rem;
  line-height: 1.7;
  margin-top: 1.5rem;
  margin-bottom: 1.5rem;
}

.cta__contact-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  font-size: 0.95rem;
}

.cta__contact-item i {
  color: var(--color-primary);
  width: 1.25rem;
  text-align: center;
}

/* Form */
.cta__form {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 2rem;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.form__field {
  display: flex;
  flex-direction: column;
  margin-bottom: 1.25rem;
}

.form__field label {
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
  color: var(--color-contrast);
}

.form__field input,
.form__field textarea {
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background-color: var(--color-base);
  color: var(--color-contrast);
  outline: none;
  transition: border-color 0.2s ease;
}

.form__field input:focus,
.form__field textarea:focus {
  border-color: var(--color-primary);
}

.form__field textarea {
  resize: vertical;
}

.btn--full {
  width: 100%;
  text-align: center;
}

@media (min-width: 900px) {
  .cta__inner {
    flex-direction: row;
    align-items: flex-start;
  }

  .cta__info {
    flex: 1;
  }

  .cta__form {
    flex: 1;
  }
}

@media (min-width: 600px) {
  .hero__heading {
    font-size: 2.5rem;
  }

  .skills__grid {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .skill-card {
    flex: 1 1 calc(50% - 1.25rem);
  }
}

@media (min-width: 900px) {
  :root {
    --section-padding: 5rem 1.25rem;
  }

  .hero__heading {
    font-size: 3rem;
  }

  .about__content {
    flex-direction: row;
    align-items: flex-start;
    gap: 3rem;
  }

  .about__image {
    flex-shrink: 0;
    width: 200px;
  }

  .skills__grid {
    flex-direction: row;
    flex-wrap: nowrap;
  }

  .skill-card {
    flex: 1;
  }
}

/* Header */
.site-header {
  background-color: var(--color-base);
  border-bottom: 1px solid var(--color-border);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.site-header__logo .custom-logo-link {
  display: inline-block;
}

.site-header__logo .custom-logo {
  height: 56px;
  width: auto;
}

.site-header__logo .custom-logo-link:hover .custom-logo {
  filter: brightness(0) saturate(100%) invert(27%) sepia(90%) saturate(1500%)
    hue-rotate(300deg);
}

/* Nav */
.site-header__nav .nav__list {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}

.site-header__nav .nav__list a {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-contrast);
  text-decoration: none;
  transition: color 0.2s ease;
}

.site-header__nav .nav__list a:hover {
  color: var(--color-secondary);
}

/* Footer */
.site-footer {
  background-color: var(--color-contrast);
  color: var(--color-base);
  padding: 2rem 0 1.5rem;
}

.site-footer__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(248, 247, 255, 0.15);
}

.site-footer__logo .custom-logo-link {
  display: inline-block;
}

.site-footer__logo .custom-logo {
  height: 48px;
  width: auto;
}

.site-footer__logo .custom-logo-link:hover .custom-logo {
  filter: brightness(0) saturate(100%) invert(27%) sepia(90%) saturate(1500%)
    hue-rotate(300deg);
}

.site-footer__social {
  display: flex;
  gap: 1rem;
}

.site-footer__social a {
  color: var(--color-base);
  font-size: 1.25rem;
  transition: color 0.2s ease;
}

.site-footer__social a:hover {
  color: var(--color-secondary);
}

.site-footer__bottom {
  padding-top: 1.25rem;
  text-align: center;
}

.site-footer__bottom p {
  font-size: 0.8rem;
  color: rgba(248, 247, 255, 0.5);
}

/* Nav */
.site-footer__nav .nav__list {
  list-style: none;
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  justify-content: center;
}

.site-footer__nav .nav__list a {
  color: var(--color-base);
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.site-footer__nav .nav__list a:hover {
  color: var(--color-secondary);
}

.site-footer__copy {
  font-size: 0.8rem;
  color: rgba(248, 247, 255, 0.5);
}

@media (min-width: 900px) {
  .site-footer__inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

/* =====================
   Project Hero (shared)
   ===================== */
.project-hero,
.page-hero {
  width: 100%;
  max-height: 480px;
  overflow: hidden;
}

.project-hero__image,
.page-hero__image {
  width: 100%;
  height: 480px;
  object-fit: cover;
}

/* =====================
   Project Single
   ===================== */
.project-single {
  padding-top: 3rem;
  padding-bottom: 4rem;
}

.project-single__title {
  font-size: 2rem;
  margin-bottom: 1.25rem;
  color: var(--color-contrast);
  line-height: 1.2;
}

.project-single__excerpt {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--color-contrast);
  max-width: 700px;
  margin-bottom: 2.5rem;
  border-left: 4px solid var(--color-primary);
  padding-left: 1.25rem;
}

.project-single__meta {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 3.5rem;
  padding: 1.5rem;
  background-color: var(--color-card-bg);
  border-radius: 8px;
  border: 1px solid var(--color-border);
}

.project-single__tools {
  margin-top: 0;
}

.project-single__meta-heading {
  font-size: 0.75rem;
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.project-single__tools p {
  font-size: 0.95rem;
  line-height: 1.6;
}

.project-single__content {
  border-top: 1px solid var(--color-border);
  padding-top: 3rem;
  margin-bottom: 4rem;
}

.entry-content h2 {
  font-size: 1.4rem;
  margin-top: 3rem;
  margin-bottom: 1rem;
  color: var(--color-contrast);
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-secondary);
  display: inline-block;
}

.entry-content h3 {
  font-size: 1.1rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  color: var(--color-primary);
}

.entry-content p {
  margin-bottom: 1.5rem;
  line-height: 1.8;
  font-size: 0.975rem;
}

.entry-content img {
  border-radius: 8px;
  margin-block: 2rem;
  width: 100%;
}

/* Post navigation */
.post-navigation {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--color-border);
  flex-wrap: wrap;
}

.post-nav__prev,
.post-nav__next {
  font-size: 0.9rem;
}

.post-nav__prev a,
.post-nav__next a {
  color: var(--color-primary);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  transition: color 0.2s ease;
}

.post-nav__prev a:hover,
.post-nav__next a:hover {
  color: var(--color-secondary);
}

.post-nav__next {
  text-align: right;
}

@media (min-width: 600px) {
  .project-single__meta {
    flex-direction: row;
    align-items: flex-start;
  }

  .project-single__title {
    font-size: 2.5rem;
  }
}

@media (min-width: 900px) {
  .project-single {
    padding-top: 5rem;
    padding-bottom: 6rem;
  }

  .project-single__title {
    font-size: 3rem;
  }
}

/* =====================
   Project Archive
   ===================== */
.projects-archive > .container > .section__heading {
  margin-bottom: 2.5rem;
}

.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 2rem;
}

.project-card {
  background-color: var(--color-card-bg);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  transition:
    transform 0.25s ease,
    box-shadow 0.25s ease;
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.14);
}

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

.project-card__link:hover {
  color: inherit;
}

.project-card__image-wrap {
  overflow: hidden;
  aspect-ratio: 16 / 9;
}

.project-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.project-card:hover .project-card__image {
  transform: scale(1.05);
}

.project-card__body {
  padding: 1.5rem;
}

.project-card__title {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  color: var(--color-primary);
  transition: color 0.2s ease;
}

.project-card__link:hover .project-card__title {
  color: var(--color-secondary);
}

.project-card__excerpt {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--color-contrast);
  margin-bottom: 1rem;
}

.project-card__cta {
  font-size: 0.85rem;
  color: var(--color-primary);
  font-family: var(--font-heading);
  display: inline-block;
  transition: color 0.2s ease;
}

.project-card__link:hover .project-card__cta {
  color: var(--color-secondary);
}

/* Pagination */
.nav-links {
  display: flex;
  gap: 0.5rem;
  margin-top: 2.5rem;
  flex-wrap: wrap;
}

.nav-links .page-numbers {
  display: inline-flex;
  align-items: center;
  padding: 0.4rem 0.85rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-size: 0.9rem;
  color: var(--color-contrast);
  transition:
    background-color 0.2s ease,
    color 0.2s ease;
}

.nav-links .page-numbers.current,
.nav-links .page-numbers:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-base);
}

@media (min-width: 600px) {
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .projects-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* =====================
   Contact Page
   ===================== */
.contact__inner {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.contact__title {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--color-contrast);
}

.contact__description {
  font-size: 0.975rem;
  line-height: 1.7;
  color: var(--color-contrast);
  margin-bottom: 2rem;
}

.contact__form {
  flex: 1;
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 2rem;
}

.contact__detail {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  font-size: 0.95rem;
}

.contact__detail i {
  color: var(--color-primary);
  width: 1.25rem;
  text-align: center;
}

.contact__detail a {
  color: var(--color-contrast);
}

.contact__detail a:hover {
  color: var(--color-secondary);
}

/* Contact Form 7 styles */
.wpcf7-form p {
  margin-bottom: 1.25rem;
}

.wpcf7-form label {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
  color: var(--color-contrast);
}

.wpcf7-form input[type="text"],
.wpcf7-form input[type="email"],
.wpcf7-form textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background-color: var(--color-base);
  color: var(--color-contrast);
  outline: none;
  transition: border-color 0.2s ease;
}

.wpcf7-form input[type="text"]:focus,
.wpcf7-form input[type="email"]:focus,
.wpcf7-form textarea:focus {
  border-color: var(--color-primary);
}

.wpcf7-form textarea {
  resize: vertical;
}

.wpcf7-form input[type="submit"] {
  display: inline-block;
  background-color: var(--color-primary);
  color: var(--color-base);
  font-family: var(--font-heading);
  font-size: 0.875rem;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: background-color 0.2s ease;
  width: 100%;
}

.wpcf7-form input[type="submit"]:hover {
  background-color: var(--color-secondary);
}

@media (min-width: 768px) {
  .contact__inner {
    flex-direction: row;
    align-items: flex-start;
    gap: 4rem;
  }

  .contact__info {
    flex: 0 0 220px;
    padding-top: 0.5rem;
  }
}

@media (min-width: 900px) {
  .contact__title {
    font-size: 2.5rem;
  }
}

/* 404 */
.error-404 {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 6rem 1.25rem;
  gap: 1.5rem;
}

.error-404__number {
  font-family: var(--font-heading);
  font-size: 10rem;
  line-height: 1;
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-secondary)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.error-404__heading {
  font-size: 2.5rem;
  color: var(--color-contrast);
}

.error-404__message {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-contrast);
}