* {
  box-sizing: border-box;
}

:root {
  --bg: #f4f6fb;
  --surface: #ffffff;
  --primary: #1d4ed8;
  --primary-700: #1e40af;
  --accent: #f97316;
  --text: #111827;
  --muted: #6b7280;
  --border: #e5e7eb;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f3f4f6;
  color: var(--text);
}

a {
  color: inherit;
  text-decoration: none;
}

input,
textarea,
select {
  width: 100%;
  border: 1px solid rgba(148,163,184,.35);
  border-radius: 1rem;
  padding: 0.95rem 1rem;
  background: #fff;
  color: var(--text);
  font: inherit;
  transition: border-color .2s ease, box-shadow .2s ease;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: rgba(59,130,246,.8);
  box-shadow: 0 0 0 4px rgba(59,130,246,.12);
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 700;
  color: var(--text);
}

textarea {
  min-height: 160px;
  resize: vertical;
}

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

header {
  background: #ffffff;
  color: var(--text);
  padding: 2rem 1rem 1.5rem;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid rgba(148,163,184,.16);
}

header::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(59,130,246,.05), transparent 30%);
  pointer-events: none;
}

.header-top,
.header-bottom,
.container {
  width: min(1200px, 100% - 2rem);
  margin: 0 auto;
}

.header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.header-bottom {
  padding-top: 1.75rem;
}

header .brand {
  margin-bottom: 0;
}

.admin-tools {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand__title {
  color: var(--text);
}

.brand__subtitle {
  color: var(--muted);
}

.container {
  width: min(1200px, 100% - 2rem);
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.brand__mark {
  background: rgba(255,255,255,.18);
  width: 3rem;
  height: 3rem;
  border-radius: 1rem;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.brand__mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.brand__title {
  font-size: 1.9rem;
  margin: 0;
}

.brand__subtitle {
  margin: 0.25rem 0 0;
  color: rgba(255,255,255,.84);
}

.hero {
  display: grid;
  gap: 1.5rem;
  align-items: stretch;
  background: #fff;
  border: 1px solid rgba(148,163,184,.15);
  border-radius: 1.5rem;
  padding: 2rem;
  box-shadow: 0 18px 35px rgba(15,23,42,.08);
  grid-template-columns: minmax(0, 1.7fr) minmax(360px, 1fr);
}

.hero-text {
  max-width: 100%;
}

.hero-text h1 {
  font-size: clamp(2.4rem, 4vw, 3.4rem);
  margin: 0.75rem 0 1rem;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.hero-text p {
  margin: 0.75rem 0 0;
  color: #475569;
  font-size: 1rem;
  line-height: 1.8;
  max-width: 48rem;
}

.hero-notice {
  margin-top: 1rem;
  padding: 1rem 1.15rem;
  background: #eef2ff;
  border-left: 4px solid #2563eb;
  color: #1e3a8a;
  border-radius: 0.95rem;
  max-width: 42rem;
}

.hero-notice a {
  color: #1d4ed8;
  text-decoration: underline;
}

.hero-featured {
  display: grid;
  gap: 1.25rem;
}

.featured-card {
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 1rem;
  background: #ffffff;
  border-radius: 1.25rem;
  overflow: hidden;
  box-shadow: 0 16px 36px rgba(15,23,42,.08);
}

.featured-card__image {
  min-height: 220px;
  overflow: hidden;
}

.featured-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.featured-card__content {
  padding: 1.5rem;
}

.featured-card__title {
  font-size: clamp(1.85rem, 3vw, 2.5rem);
  margin: 0.9rem 0 1rem;
  line-height: 1.2;
}

.featured-card__content p {
  color: #475569;
  font-size: 1rem;
  line-height: 1.8;
  margin: 0 0 1.25rem;
}

.featured-card--placeholder {
  padding: 2rem;
  background: rgba(255,255,255,.95);
  border-radius: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.list-grid {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card__content {
  padding: 1.5rem;
}

.card__tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.7rem;
  border-radius: 999px;
  background: rgba(59,130,246,.1);
  color: var(--primary-700);
  font-size: 0.82rem;
  font-weight: 600;
}

.card__title,
.featured-card__title {
  font-size: 1.35rem;
  margin: 0.8rem 0 0.75rem;
  line-height: 1.3;
}

.card__desc {
  margin: 0;
  color: #475569;
  line-height: 1.8;
}

.section-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 2rem 0 1rem;
  gap: 1rem;
}

.section-title h2 {
  margin: 0;
  font-size: 2rem;
}

.section-subtitle {
  margin: 0.5rem 0 0;
  color: rgba(17,24,39,.72);
  font-size: 1rem;
  max-width: 42rem;
}

.section-title a {
  color: var(--primary-700);
  font-weight: 700;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  color: #475569;
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.hero-label,
.hero-update {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1rem;
  border-radius: 999px;
  background: rgba(148,163,184,.12);
  border: 1px solid rgba(148,163,184,.18);
}

.controls {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
  background: #f8fafc;
  border: 1px solid rgba(148,163,184,.18);
  border-radius: 1.25rem;
  padding: 1.25rem;
}

.controls form,
.controls .category-list {
  flex: none;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(148,163,184,.18);
}

.site-nav__item {
  display: inline-flex;
  align-items: center;
  padding: 0.7rem 1rem;
  border-radius: 999px;
  background: #edf2f7;
  color: #0f172a;
  border: 1px solid rgba(148,163,184,.25);
  transition: background .2s ease, transform .2s ease;
}

.site-nav__item:hover {
  background: #e2e8f0;
  transform: translateY(-1px);
}

.search-field {
  width: 100%;
  display: flex;
}

.search-field input,
.search-field button,
.category-list select {
  border-radius: 0.85rem;
  padding: 0.95rem 1rem;
  font-size: 1rem;
}

.search-field input {
  flex: 1;
  background: rgba(255,255,255,.92);
  color: #1f2937;
  border: 1px solid rgba(148,163,184,.35);
}

.search-field input::placeholder {
  color: rgba(107,114,128,.7);
}

.search-field button,
.category-list select {
  background: #fff;
  color: var(--text);
  border: 1px solid rgba(148,163,184,.4);
}

.category-list select {
  width: 100%;
}

.search-field button {
  background: #fff;
  color: var(--primary-700);
  border: none;
  margin-left: 0.5rem;
  cursor: pointer;
  transition: transform .2s ease;
}

.search-field button:hover {
  transform: translateY(-1px);
}

.category-list select {
  width: 100%;
  background: #ffffff;
  color: var(--text);
}

main {
  margin-top: -2.5rem;
  padding-bottom: 3rem;
}

.section-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin: 2rem 0 1rem;
}

.section-title h2 {
  margin: 0;
  font-size: 1.9rem;
}

.section-subtitle {
  margin: 0.5rem 0 0;
  color: rgba(17,24,39,.72);
  font-size: 1rem;
  max-width: 42rem;
}

.section-title a {
  color: var(--primary-700);
  text-decoration: none;
  font-weight: 700;
}

.grid {
  display: grid;
  gap: 1.5rem;
}

.top-stories {
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 1.75rem;
}

.top-stories .card {
  min-height: 100%;
}

.side-panel {
  display: grid;
  gap: 1rem;
}

.side-panel section {
  background: #fff;
  border: 1px solid rgba(226,232,240,.9);
}

.side-panel h2 {
  margin-top: 0;
}

.card {
  background: var(--surface);
  border: 1px solid rgba(226,232,240,.65);
  border-radius: 1.2rem;
  overflow: hidden;
  box-shadow: 0 14px 32px rgba(15,23,42,.06);
  transition: transform .2s ease, box-shadow .2s ease;
}

.card__content {
  padding: 1.5rem;
}

.card__title {
  font-size: 1.25rem;
  margin: 0 0 0.75rem;
  line-height: 1.4;
}

.card__description {
  color: #475569;
  font-size: 0.98rem;
  line-height: 1.8;
  margin: 0;
}

.card__meta {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  color: #64748b;
  font-size: 0.92rem;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 40px rgba(15,23,42,.09);
}

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

.card__link:hover .card__title {
  text-decoration: underline;
}

.card__image {
  height: 260px;
  position: relative;
  overflow: hidden;
}

.featured {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: minmax(0, 1fr);
}

.featured .card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

.featured .card__image {
  height: 420px;
}

.featured .card__content {
  padding: 2rem;
}

.featured .card__title {
  font-size: clamp(2rem, 3vw, 2.8rem);
}

.featured .card__description {
  font-size: 1.08rem;
}

@media (min-width: 900px) {
  .featured {
    grid-template-columns: 1.5fr 1fr;
  }

  .featured .card__content {
    padding: 2.5rem;
  }
}

.pagination {
  margin-top: 1.5rem;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
}

.pagination a {
  color: var(--primary-700);
  padding: 0.65rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #fff;
  transition: transform .2s ease, background .2s ease;
}

.pagination a:hover {
  transform: translateY(-1px);
  background: #f3f4f6;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.3rem;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  transition: background .2s ease, transform .2s ease, box-shadow .2s ease;
  box-shadow: 0 10px 24px rgba(30,64,175,0.12);
}

.button:hover {
  background: #1e40af;
  transform: translateY(-1px);
}

.button.secondary {
  background: #e2e8f0;
  color: #0f172a;
  border: 1px solid rgba(148,163,184,.4);
  box-shadow: none;
}

.button.secondary:hover {
  background: #cbd5e1;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}

.admin-table th,
.admin-table td {
  padding: 0.85rem 1rem;
  border: 1px solid rgba(148,163,184,.2);
  text-align: left;
}

.admin-table th {
  background: #f8fafc;
  color: #0f172a;
}

.admin-table tbody tr:hover {
  background: #f1f5f9;
}


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

.card__content {
  padding: 1.25rem;
}

.card__tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.7rem;
  border-radius: 999px;
  background: rgba(59,130,246,.1);
  color: var(--primary-700);
  font-size: 0.82rem;
  font-weight: 600;
}

.card__actions {
  margin-top: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  color: var(--primary-700);
  font-weight: 700;
}

.card__actions span {
  background: rgba(59,130,246,.08);
  border-radius: 999px;
  padding: 0.5rem 0.85rem;
}

.card__title {
  font-size: 1.35rem;
  margin: 0.8rem 0 0.75rem;
  line-height: 1.3;
}

.card__desc {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.list-grid {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.side-panel {
  display: grid;
  gap: 1rem;
}

.panel {
  padding: 1.75rem;
  background: rgba(255,255,255,.96);
  border: 1px solid rgba(229,231,235,.9);
  border-radius: 1.5rem;
  box-shadow: 0 18px 40px rgba(15,23,42,.05);
}

.intro-panel {
  margin-top: 1.5rem;
  border-color: rgba(59,130,246,.18);
  background: rgba(255,255,255,.98);
}

.panel.admin-panel {
  padding: 2rem;
}

.panel h2 {
  margin-top: 0;
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

.admin-notice {
  background: #eef2ff;
  border: 1px solid #c7d2fe;
  margin-bottom: 1rem;
  border-radius: 1rem;
  padding: 1rem 1.25rem;
  color: #1e3a8a;
}

.section-card {
  padding: 1.5rem;
  background: #fff;
  border-radius: 1.5rem;
  border: 1px solid rgba(229,231,235,.9);
  box-shadow: 0 18px 40px rgba(15,23,42,.05);
}

.form-grid {
  display: grid;
  gap: 1rem;
}

.grid-two {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.admin-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.admin-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.button-row form {
  margin: 0;
}

.admin-layout {
  display: grid;
  gap: 1.75rem;
  grid-template-columns: 300px minmax(0, 1fr);
  align-items: start;
}

.admin-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.admin-sidebar__panel {
  padding: 1.5rem;
  border-radius: 1.5rem;
  box-shadow: 0 18px 40px rgba(15,23,42,.06);
}

.admin-sidebar__title {
  margin: 0 0 1rem;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

.admin-sidebar__nav {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.admin-sidebar__link {
  display: block;
  padding: 0.95rem 1rem;
  border-radius: 1rem;
  border: 1px solid rgba(148,163,184,.25);
  background: #f8fafc;
  color: var(--text);
  transition: background .2s ease, transform .2s ease, border-color .2s ease;
}

.admin-sidebar__link:hover,
.admin-sidebar__link:focus {
  background: #eff6ff;
  border-color: rgba(59,130,246,.35);
  transform: translateX(1px);
}

.admin-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.admin-filter {
  padding: 1.25rem;
  background: #f8fafc;
  border: 1px solid rgba(148,163,184,.3);
  border-radius: 1.35rem;
}

.admin-panel {
  padding: 2rem;
  border-radius: 1.75rem;
}

.admin-panel .section-card {
  padding: 1.75rem;
}

.admin-panel .section-card h3 {
  margin-top: 0;
}

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

@media (max-width: 640px) {
  .admin-sidebar__link {
    padding: 0.85rem 0.9rem;
  }
}

.form-group {
  display: grid;
  gap: 0.5rem;
}

.panel ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.panel li {
  margin-bottom: 0.9rem;
}

.panel li:last-child {
  margin-bottom: 0;
}

.panel a {
  color: var(--text);
}

.panel small {
  color: var(--muted);
}

.detail-article {
  display: grid;
  gap: 1.5rem;
}

.detail-article h2 {
  margin: 0;
}

.detail-article .detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.detail-article .detail-meta span,
.detail-article .detail-meta a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.detail-article p {
  line-height: 1.85;
}

.about-hero {
  position: relative;
  display: grid;
  gap: 1.5rem;
  grid-template-columns: minmax(0, 1.3fr) minmax(320px, 1fr);
  align-items: center;
  padding: 2.5rem;
  background: linear-gradient(180deg, #081127 0%, #111827 100%);
  overflow: hidden;
  border-radius: 2rem;
  color: #f8fafc;
  box-shadow: 0 36px 90px rgba(15,23,42,.24);
}

.about-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 14% 25%, rgba(56,189,248,.18), transparent 18%), radial-gradient(circle at 85% 15%, rgba(249,115,22,.14), transparent 20%);
  pointer-events: none;
}

.about-hero__content {
  position: relative;
  z-index: 1;
}

.about-hero__content h1 {
  font-size: clamp(2.6rem, 4vw, 3.4rem);
  margin: 1rem 0 1rem;
  line-height: 1.05;
  color: #f8fafc;
}

.about-hero__content p {
  color: rgba(241,245,249,.86);
  font-size: 1.05rem;
}

.about-hero__image {
  min-height: 420px;
  overflow: hidden;
  border-radius: 1.75rem;
  box-shadow: 0 32px 70px rgba(15,23,42,.28);
  position: relative;
  animation: popIn 0.9s ease both;
}

.about-hero__image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15,23,42,0) 0%, rgba(15,23,42,.55) 100%);
  pointer-events: none;
}

.about-hero__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .85s ease, filter .85s ease;
  transform: scale(1);
  filter: saturate(1.05) contrast(1.04);
}

.about-hero__image:hover img {
  transform: scale(1.04);
  filter: saturate(1.12) contrast(1.08);
}

.about-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  margin-top: 1.5rem;
}

.about-bio,
.about-details,
.about-card {
  background: rgba(255,255,255,.96);
  border-radius: 1.5rem;
  box-shadow: 0 20px 50px rgba(15,23,42,.08);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.9s cubic-bezier(.22,1,.36,1) both;
  min-height: 180px;
  padding: 1.75rem;
}

.about-grid .about-bio {
  animation-delay: 0.08s;
}

.about-grid .about-details {
  animation-delay: 0.16s;
}

.about-skills .about-card {
  animation-delay: 0.22s;
}

.about-card,
.about-bio,
.about-details {
  animation-duration: 1s;
}

.about-bio h2,
.about-details h3,
.about-card h3 {
  margin-top: 0;
}

.about-card {
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
  border: 1px solid rgba(15,23,42,.08);
}

.about-card:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: 0 28px 85px rgba(15,23,42,.16);
  border-color: rgba(59,130,246,.35);
}

.about-card h3 {
  margin-bottom: 0.6rem;
}

.profile-badge {
  background: rgba(249,115,22,.18);
  color: #b45309;
}

.about-list li {
  color: #475569;
}

.about-skills {
  margin-top: 1.5rem;
}

.about-contact {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  color: #475569;
}

.about-contact a {
  color: #2563eb;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(22px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.about-hero {
  animation: fadeUp 0.95s ease both;
}

@keyframes popIn {
  from {
    opacity: 0;
    transform: scale(0.98) translateY(18px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.button,
.button.secondary {
  transition: transform .24s ease, background .22s ease, box-shadow .22s ease;
}

.button:hover,
.button.secondary:hover {
  transform: translateY(-1px) scale(1.02);
}

footer {
  text-align: center;
  padding: 1.5rem 1rem 0;
  color: var(--muted);
}

@media (max-width: 900px) {
  .top-stories {
    grid-template-columns: 1fr;
  }
  .about-hero {
    grid-template-columns: 1fr;
  }
}
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.button,
.button.secondary {
  transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
}

.button:hover,
.button.secondary:hover {
  transform: translateY(-1px) scale(1.01);
}

.profile-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 1rem;
  border-radius: 999px;
  background: rgba(249,115,22,.15);
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 1rem;
}

.about-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.85rem;
}

.about-list li {
  padding-left: 1rem;
  position: relative;
  color: #475569;
}

.about-list li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--accent);
}

.about-skills {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin-top: 1.25rem;
}

.about-card {
  padding: 1.5rem;
}

.about-card p {
  margin: 0.75rem 0 0;
  color: #475569;
  line-height: 1.75;
}

.about-contact a {
  color: var(--primary-700);
  text-decoration: none;
}

.about-contact a:hover {
  text-decoration: underline;
}

footer {
  text-align: center;
  padding: 1.5rem 1rem 0;
  color: var(--muted);
}

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

@media (max-width: 640px) {
  .controls {
    flex-direction: column;
  }

  .hero {
    text-align: center;
  }

  .hero-text {
    margin: 0 auto;
  }

  .card__image {
    height: 200px;
  }
}