:root {
  color-scheme: light;
  --bg: #f7f8fb;
  --surface: #ffffff;
  --text: #1a1f36;
  --muted: #5b6478;
  --brand: #1f4fd8;
  --brand-dark: #173ea8;
  --line: #d8deea;
  --radius: 12px;
  --shadow: 0 8px 24px rgba(26, 31, 54, 0.06);
  --max: 1120px;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, Cantarell, "Noto Sans", sans-serif;
  line-height: 1.5;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-size: 1rem;
  text-rendering: optimizeLegibility;
}

a { color: var(--brand); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--brand-dark); }

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--brand);
  color: #fff;
  padding: .75rem 1rem;
  z-index: 1000;
}

.skip-link:focus { left: 1rem; top: 1rem; }

.container {
  width: min(calc(100% - 2rem), var(--max));
  margin-inline: auto;
}

.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4rem;
}

.logo {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
  text-decoration: none;
}

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

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 600;
}

.site-nav a[aria-current="page"] { color: var(--brand); }

.hero {
  padding: 3rem 0 2rem;
}

.hero h1 {
  margin: 0 0 .75rem;
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.hero p {
  margin: 0;
  color: var(--muted);
  max-width: 60ch;
  font-size: 1.05rem;
}

.eyebrow {
  color: var(--brand);
  font-size: .82rem;
  font-weight: 800;
  letter-spacing: .08em;
  margin: 0 0 .5rem;
  text-transform: uppercase;
}

.section { padding: 2rem 0 3rem; }

.content-narrow {
  max-width: 860px;
}

.info-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin: 0 0 1.25rem;
  padding: 1rem 1.1rem;
}

.info-card h2,
.info-card h3 {
  margin: 0 0 .5rem;
}

.info-card p {
  color: var(--muted);
  margin: 0 0 .75rem;
}

.info-card p:last-child {
  margin-bottom: 0;
}

.cta-row,
.internal-links {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  align-items: center;
}

.internal-links a {
  background: #eef3ff;
  border: 1px solid #cfdcff;
  border-radius: 999px;
  font-weight: 700;
  padding: .45rem .7rem;
  text-decoration: none;
}

.btn--ghost {
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--brand);
}

.ad-slot {
  margin: 1rem auto;
  max-width: var(--max);
  padding-inline: 1rem;
  text-align: center;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  box-shadow: var(--shadow);
}

.card h2, .card h3 {
  margin: 0 0 .35rem;
  font-size: 1.05rem;
}

.card p, .card li, .meta { color: var(--muted); margin: 0; }

.meta-list {
  display: grid;
  gap: .75rem;
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
}

.meta-list li {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: .85rem 1rem;
}

.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

th, td {
  padding: .75rem .85rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th { font-size: .85rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--surface);
  padding: 1.5rem 0 2rem;
  color: var(--muted);
  font-size: .95rem;
}

.btn {
  display: inline-block;
  border: 0;
  border-radius: 999px;
  background: var(--brand);
  color: #fff;
  font: inherit;
  font-weight: 600;
  padding: .7rem 1.1rem;
  cursor: pointer;
  text-decoration: none;
}

.btn:hover { background: var(--brand-dark); color: #fff; }

.form-stack { display: grid; gap: .75rem; max-width: 28rem; }

.form-stack label { display: grid; gap: .35rem; font-weight: 600; }

.form-stack input {
  font: inherit;
  padding: .65rem .75rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.alert {
  border-radius: 8px;
  padding: .75rem 1rem;
  margin-bottom: 1rem;
}

.alert--error { background: #fdecec; color: #8a1f1f; }
.alert--success { background: #ecfbf1; color: #13633a; }

@media (max-width: 640px) {
  .site-header__inner { align-items: flex-start; flex-direction: column; padding: .75rem 0; }
}

/* —— Tercih Robotu (YÖK Atlas tarzı) —— */
.atlas-page {
  padding: 1.5rem 0 2.5rem;
  background: #eef2f6;
}

.atlas-page__head h1 {
  margin: 0 0 .35rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: #1b2a41;
}

.atlas-page__head p {
  margin: 0;
  color: #5f6b7a;
  font-size: .95rem;
}

.atlas-panel {
  margin-top: 1rem;
  background: #fff;
  border: 1px solid #d7dee8;
  border-radius: 4px;
  padding: 1rem;
}

.atlas-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .75rem 1rem;
}

.atlas-field {
  display: grid;
  gap: .25rem;
  font-size: .875rem;
}

.atlas-field > span {
  color: #3d4a5c;
  font-weight: 600;
}

.atlas-field select,
.atlas-field input {
  width: 100%;
  font: inherit;
  font-size: .875rem;
  padding: .5rem .6rem;
  border: 1px solid #c8d1dc;
  border-radius: 3px;
  background: #fff;
  color: #1b2a41;
}

.atlas-field select:focus,
.atlas-field input:focus {
  outline: 2px solid #2b6cb0;
  outline-offset: 1px;
  border-color: #2b6cb0;
}

.atlas-actions {
  display: flex;
  justify-content: flex-end;
  gap: .5rem;
  margin-top: 1rem;
  padding-top: .75rem;
  border-top: 1px solid #e6ebf1;
}

.atlas-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 5.5rem;
  padding: .5rem 1rem;
  font: inherit;
  font-size: .875rem;
  font-weight: 600;
  border-radius: 3px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
}

.atlas-btn--primary {
  background: #2b6cb0;
  color: #fff;
  border-color: #2b6cb0;
}

.atlas-btn--primary:hover {
  background: #245a92;
  color: #fff;
}

.atlas-btn--ghost {
  background: #fff;
  color: #3d4a5c;
  border-color: #c8d1dc;
}

.atlas-btn--ghost:hover {
  background: #f7f9fb;
  color: #1b2a41;
}

.atlas-results {
  margin-top: 1rem;
}

.atlas-results__meta {
  font-size: .875rem;
  color: #3d4a5c;
  margin-bottom: .5rem;
}

.atlas-table-wrap {
  overflow-x: auto;
  background: #fff;
  border: 1px solid #d7dee8;
  border-radius: 4px;
}

.atlas-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .8125rem;
}

.atlas-table th,
.atlas-table td {
  padding: .55rem .65rem;
  border-bottom: 1px solid #e6ebf1;
  text-align: left;
  vertical-align: top;
}

.atlas-table th {
  background: #f4f7fa;
  color: #3d4a5c;
  font-weight: 700;
  text-transform: none;
  letter-spacing: 0;
  white-space: nowrap;
}

.atlas-table tbody tr:hover {
  background: #fafbfd;
}

.atlas-table__empty {
  text-align: center;
  color: #5f6b7a;
  padding: 1.25rem !important;
}

.atlas-pagination {
  display: flex;
  gap: .75rem;
  margin-top: .75rem;
  font-size: .875rem;
}

.atlas-pagination a {
  color: #2b6cb0;
  text-decoration: none;
  font-weight: 600;
}

.atlas-hint,
.atlas-note {
  font-size: .8125rem;
  color: #5f6b7a;
  margin: .75rem 0 0;
}

.atlas-note {
  margin-top: 1rem;
  padding: .65rem .75rem;
  background: #fff;
  border: 1px solid #e6ebf1;
  border-radius: 3px;
}

@media (max-width: 900px) {
  .atlas-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 560px) {
  .atlas-grid { grid-template-columns: 1fr; }
  .atlas-actions { flex-direction: column-reverse; }
  .atlas-btn { width: 100%; }
}

/* —— Tercih robotu: net formu —— */
.robot-form {
  padding: 1rem;
  border-radius: 8px;
}

.robot-form .atlas-grid {
  align-items: start;
  gap: 1rem;
}

.robot-form .atlas-field {
  gap: .4rem;
}

.robot-form .atlas-field > span {
  min-height: 1.15rem;
  color: #334155;
  font-size: .8125rem;
  line-height: 1.25;
}

.robot-form .atlas-field select,
.robot-form .atlas-field > input {
  min-height: 2.65rem;
  padding: .65rem .75rem;
  border-radius: 4px;
  border-color: #cfd8e3;
  background-color: #fff;
  line-height: 1.25;
}

.robot-form .atlas-field select:focus,
.robot-form .atlas-field > input:focus {
  outline: 0;
  border-color: #2b6cb0;
  box-shadow: 0 0 0 3px rgba(43, 108, 176, .14);
}

.robot-tabs {
  display: flex;
  gap: .5rem;
  margin-top: .75rem;
  flex-wrap: wrap;
}

.robot-tabs__link {
  display: inline-flex;
  padding: .45rem .85rem;
  border: 1px solid #c8d1dc;
  border-radius: 999px;
  background: #fff;
  color: #3d4a5c;
  text-decoration: none;
  font-size: .875rem;
  font-weight: 600;
}

.robot-tabs__link.is-active {
  background: #2b6cb0;
  border-color: #2b6cb0;
  color: #fff;
}

.robot-hint {
  margin: .85rem 0 0;
  padding: .65rem .75rem;
  background: #e8f2fc;
  border: 1px solid #c5daf0;
  border-radius: 4px;
  color: #2b4c7e;
  font-size: .875rem;
}

.robot-check-field__box {
  display: flex;
  align-items: center;
  gap: .45rem;
  min-height: 2.65rem;
  padding: .65rem .75rem;
  border: 1px solid #c8d1dc;
  border-radius: 4px;
  background: #fff;
  color: #3d4a5c;
  font-size: .8125rem;
  font-weight: 600;
}

.robot-check-field__box input {
  width: auto;
  margin: 0;
}

.robot-multiselect__box {
  display: flex;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: .35rem;
  min-height: 2.65rem;
  padding: .45rem .55rem;
  border: 1px solid #c8d1dc;
  border-radius: 4px;
  background: #fff;
  cursor: text;
}

.robot-multiselect {
  position: relative;
}

.robot-multiselect:focus-within {
  z-index: 120;
}

.robot-multiselect__box:focus-within {
  outline: 0;
  border-color: #2b6cb0;
  box-shadow: 0 0 0 3px rgba(43, 108, 176, .14);
}

.robot-multiselect.is-invalid .robot-multiselect__box {
  border-color: #c53030;
  background: #fffafa;
}

.robot-multiselect__tags {
  display: contents;
}

.robot-multiselect__tag {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  max-width: 100%;
  padding: .25rem .4rem .25rem .55rem;
  border-radius: 999px;
  background: #e8f2fc;
  color: #1f4e79;
  font-size: .75rem;
  font-weight: 700;
}

.robot-multiselect__remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1rem;
  height: 1rem;
  border: 0;
  border-radius: 999px;
  background: #c5daf0;
  color: #1f4e79;
  font: inherit;
  font-size: .6875rem;
  line-height: 1;
  cursor: pointer;
}

.robot-multiselect__remove:hover {
  background: #a8c8e8;
}

.atlas-field .robot-multiselect__input {
  flex: 1 1 8rem;
  min-width: 7rem;
  width: auto;
  min-height: 1.8rem;
  padding: .15rem .1rem;
  border: 0;
  outline: 0;
  background: transparent;
  line-height: 1.4;
}

.atlas-field .robot-multiselect__input:focus {
  outline: 0;
  border-color: transparent;
}

.robot-multiselect__hint {
  margin: 0;
  color: #6b7280;
  font-size: .6875rem;
  line-height: 1.35;
}

.robot-multiselect__suggestions {
  position: absolute;
  z-index: 130;
  top: calc(100% + .25rem);
  left: 0;
  right: 0;
  max-height: 14rem;
  overflow: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  padding: .25rem;
  border: 1px solid #c8d1dc;
  border-radius: 4px;
  background: #fff;
  box-shadow: 0 10px 24px rgba(27, 42, 65, .14);
}

.robot-multiselect__suggestion {
  display: block;
  width: 100%;
  padding: .45rem .55rem;
  border: 0;
  border-radius: 3px;
  background: transparent;
  color: #1b2a41;
  font: inherit;
  font-size: .8125rem;
  line-height: 1.35;
  text-align: left;
  cursor: pointer;
}

.robot-multiselect__suggestion:hover,
.robot-multiselect__suggestion:focus {
  outline: 0;
  background: #e8f2fc;
  color: #1f4e79;
}

.robot-net-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: .75rem;
  margin-top: .85rem;
}

.robot-net-card {
  margin: 0;
  padding: .75rem;
  border: 1px solid #c5daf0;
  border-radius: 4px;
  background: #f3f8fd;
}

.robot-net-card legend {
  font-size: .8125rem;
  font-weight: 700;
  color: #1b2a41;
  padding: 0 .25rem;
}

.robot-net-card legend small {
  font-weight: 500;
  color: #5f6b7a;
}

.robot-net-card label {
  display: grid;
  gap: .2rem;
  margin-top: .45rem;
  font-size: .75rem;
  font-weight: 600;
  color: #3d4a5c;
}

.robot-net-card input {
  font: inherit;
  padding: .4rem .5rem;
  border: 1px solid #c8d1dc;
  border-radius: 3px;
}

.robot-net-card.is-invalid input {
  border-color: #c53030;
}

.net-limit-note {
  margin: .45rem 0 0;
  font-size: .6875rem;
  color: #5f6b7a;
}

.robot-net-heading {
  margin: 1.25rem 0 0;
  font-size: 1rem;
  font-weight: 700;
  color: #1b2a41;
}

.robot-ayt-sections {
  margin-top: .25rem;
}

.robot-ayt-group {
  margin-top: 1rem;
  padding: .85rem;
  border: 1px solid #c5daf0;
  border-radius: 4px;
  background: #fff;
  transition: opacity .2s ease, border-color .2s ease;
}

.robot-ayt-group.is-dimmed {
  background: #f8fafc;
  border-style: dashed;
  cursor: pointer;
}

.robot-ayt-group.is-dimmed .robot-ayt-group__title,
.robot-ayt-group.is-dimmed .robot-net-grid {
  opacity: .55;
}

.robot-ayt-group.is-dimmed .robot-net-card {
  pointer-events: none;
}

.robot-ayt-group.is-active {
  opacity: 1;
}

.robot-ayt-group__title {
  margin: 0 0 .5rem;
  font-size: .875rem;
  font-weight: 700;
  color: #2b4c7e;
}

.robot-ayt-optional-toggle {
  margin-bottom: .65rem;
  padding-bottom: .65rem;
  border-bottom: 1px solid #e2e8f0;
}

.robot-ayt-checkbox {
  display: flex;
  align-items: flex-start;
  gap: .5rem;
  font-size: .8125rem;
  font-weight: 600;
  color: #1b2a41;
  cursor: pointer;
}

.robot-ayt-checkbox input {
  margin-top: .15rem;
  flex-shrink: 0;
}

.robot-ayt-optional-hint {
  margin: .35rem 0 0 1.35rem;
  font-size: .75rem;
  color: #5f6b7a;
  line-height: 1.45;
}

.robot-net-grid--compact {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.robot-dual-note {
  margin: 0 0 1rem;
  padding: .65rem .75rem;
  background: #edf7ed;
  border: 1px solid #b7ddb9;
  border-radius: 4px;
  color: #276749;
  font-size: .875rem;
}

.robot-results-block {
  margin-top: 1.5rem;
}

.robot-results-block__title {
  margin: 0 0 .5rem;
  font-size: 1.125rem;
  font-weight: 700;
  color: #1b2a41;
}

.robot-results-block + .robot-results-block {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 2px solid #e2e8f0;
}

.robot-calculation {
  margin-top: 1rem;
}

.robot-calculation__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid #e2e8f0;
  padding-bottom: .75rem;
}

.robot-calculation__head h2 {
  margin: 0;
  font-size: 1.125rem;
  color: #1b2a41;
}

.robot-calculation__head p {
  margin: .25rem 0 0;
  color: #5f6b7a;
  font-size: .8125rem;
}

.robot-calculation__obp {
  min-width: 8rem;
  padding: .6rem .75rem;
  border-radius: 4px;
  background: #e8f2fc;
  color: #1f4e79;
  text-align: right;
}

.robot-calculation__obp strong,
.robot-calculation__obp span,
.robot-calculation__obp small {
  display: block;
}

.robot-calculation__obp span {
  font-size: 1rem;
  font-weight: 700;
}

.robot-calculation__obp small {
  margin-top: .15rem;
}

.robot-net-summary {
  display: flex;
  gap: .75rem;
  flex-wrap: wrap;
  margin-top: .75rem;
  color: #3d4a5c;
  font-size: .875rem;
}

.robot-score-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .75rem;
  margin-top: .85rem;
}

.robot-score-card {
  margin: 0;
  padding: .75rem;
  border: 1px solid #c5daf0;
  border-radius: 4px;
  background: #f8fbff;
}

.robot-score-card h3 {
  margin: 0 0 .55rem;
  color: #1b2a41;
  font-size: .9rem;
}

.robot-score-card dl {
  display: grid;
  gap: .35rem;
  margin: 0;
}

.robot-score-card dl div {
  display: flex;
  justify-content: space-between;
  gap: .75rem;
}

.robot-score-card dt {
  color: #5f6b7a;
  font-size: .75rem;
}

.robot-score-card dd {
  margin: 0;
  color: #1b2a41;
  font-size: .75rem;
  font-weight: 700;
  text-align: right;
}

.robot-calculation__rank-note {
  margin: .75rem 0 0;
  color: #5f6b7a;
  font-size: .75rem;
}

.robot-calculation__warnings {
  display: grid;
  gap: .4rem;
  margin-top: .75rem;
}

.robot-calculation__warnings p {
  margin: 0;
  padding: .55rem .65rem;
  border: 1px solid #f1c48b;
  border-radius: 4px;
  background: #fff8ed;
  color: #7a4b12;
  font-size: .8125rem;
}

.robot-calculation__audit {
  margin-top: .85rem;
  padding: .65rem .75rem;
  border: 1px solid #d7dee8;
  border-radius: 4px;
  background: #fff;
  color: #3d4a5c;
  font-size: .8125rem;
}

.robot-calculation__audit summary {
  cursor: pointer;
  font-weight: 700;
  color: #1b2a41;
}

.robot-calculation__audit p {
  margin: .5rem 0 0;
}

.robot-actions {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.robot-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 14rem;
  padding: .7rem 1.25rem;
  font: inherit;
  font-size: .9375rem;
  font-weight: 700;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  background: #2b6cb0;
  color: #fff;
}

.robot-submit:hover:not(:disabled) {
  background: #245a92;
}

.robot-submit:disabled {
  background: #b8c0cc;
  color: #fff;
  cursor: not-allowed;
}

.robot-rank-grid {
  margin-top: .85rem;
}

@media (max-width: 900px) {
  .robot-form { padding: .85rem; }
  .robot-form .atlas-grid { gap: .85rem; }
  .robot-net-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .robot-net-grid--compact { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .robot-score-grid { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .robot-form { padding: .75rem; }
  .robot-tabs__link { flex: 1 1 auto; justify-content: center; }
  .robot-net-grid { grid-template-columns: 1fr; }
  .robot-submit { width: 100%; }
  .robot-calculation__head { flex-direction: column; }
  .robot-calculation__obp { width: 100%; text-align: left; }
}