:root {
  color-scheme: light;
  --paper: #ffffff;
  --navy: #0b2a5b;
  --ink: var(--navy);
  --muted: #34486b;
  --line: rgba(11, 42, 91, 0.14);
  --blue: #1268d8;
  --soft-blue: #e9f2ff;
  --soft-gray: #f3f5f8;
  --red: #d72638;
  --white: #ffffff;
  --shadow: 0 18px 45px rgba(11, 42, 91, 0.12);
  font-family:
    Urbanist, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button,
input,
textarea,
select {
  color: var(--navy);
}

::selection {
  background: var(--soft-blue);
  color: var(--navy);
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 24px;
  align-items: center;
  min-height: 76px;
  padding: 14px clamp(18px, 4vw, 54px);
  color: var(--white);
  transition:
    background 180ms ease,
    color 180ms ease,
    box-shadow 180ms ease;
}

.site-header::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 0;
  border-top: 0 solid transparent;
  border-bottom: 0 solid transparent;
  background:
    linear-gradient(
      90deg,
      var(--navy) 0 34%,
      var(--blue) 34% 58%,
      var(--red) 58% 78%,
      var(--white) 78% 100%
    );
  opacity: 0;
  transition:
    height 180ms ease,
    opacity 180ms ease;
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.94);
  color: var(--ink);
  box-shadow: 0 8px 30px rgba(11, 42, 91, 0.08);
  backdrop-filter: blur(18px);
}

.site-header.is-scrolled::after {
  height: 4px;
  border-top: 1px solid var(--navy);
  border-bottom: 1px solid var(--navy);
  opacity: 1;
}

.brand {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  min-width: 0;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  width: 40px;
  height: 40px;
  display: block;
  border-radius: 12px;
}

.nav-links {
  display: flex;
  justify-content: center;
  gap: clamp(14px, 2.4vw, 32px);
  color: inherit;
  font-size: 0.94rem;
  font-weight: 650;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  opacity: 0.88;
  transition:
    background 160ms ease,
    box-shadow 160ms ease,
    color 160ms ease,
    opacity 160ms ease,
    transform 160ms ease;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  background: rgba(255, 255, 255, 0.16);
  color: var(--white);
  opacity: 1;
  box-shadow:
    0 6px 16px rgba(11, 42, 91, 0.18),
    inset 0 0 0 1px rgba(255, 255, 255, 0.28);
  transform: translateY(-1px);
  outline: 0;
}

.site-header.is-scrolled .nav-links a:hover,
.site-header.is-scrolled .nav-links a:focus-visible {
  background: var(--navy);
  color: var(--white);
  box-shadow:
    0 8px 18px rgba(11, 42, 91, 0.18),
    0 2px 0 rgba(18, 104, 216, 0.22);
}

.menu-button {
  display: none;
  width: 40px;
  height: 40px;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  background: transparent;
  color: inherit;
  cursor: pointer;
  transition:
    border-color 160ms ease,
    background 160ms ease;
}

.menu-button span {
  display: block;
  width: 13px;
  height: 1px;
  margin: 2.4px 0;
  border-radius: 999px;
  background: currentColor;
  opacity: 0.7;
}

.menu-button:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.88);
}

.site-header.is-scrolled .menu-button {
  border-color: currentColor;
}

.site-header.is-scrolled .menu-button:hover {
  background: var(--soft-blue);
  border-color: rgba(11, 42, 91, 0.62);
}

.language-switcher {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  border: 1px solid currentColor;
  border-radius: 999px;
}

.lang-button {
  min-width: 38px;
  height: 30px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: inherit;
  cursor: pointer;
  font: inherit;
  font-size: 0.78rem;
  font-weight: 800;
}

.lang-button.is-active {
  background: var(--white);
  color: var(--navy);
}

.site-header.is-scrolled .lang-button.is-active {
  background: var(--navy);
  color: var(--white);
}

.hero {
  position: relative;
  display: grid;
  align-items: end;
  min-height: 92svh;
  overflow: hidden;
  color: var(--white);
}

.hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 14vh;
  background: linear-gradient(180deg, transparent, var(--paper));
  pointer-events: none;
}

.hero-image,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-image {
  background:
    linear-gradient(90deg, rgba(11, 42, 91, 0.91), rgba(11, 42, 91, 0.34)),
    url("assets/hero-mehmet-cavdaroglu.png") center / cover no-repeat;
  transform: scale(1.01);
}

.hero-overlay {
  background:
    radial-gradient(circle at 18% 72%, rgba(215, 38, 56, 0.32), transparent 26%),
    linear-gradient(180deg, rgba(18, 104, 216, 0.16), rgba(11, 42, 91, 0.72));
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(760px, calc(100% - 36px));
  margin: 0 clamp(18px, 7vw, 92px) clamp(72px, 13vh, 126px);
}

.kicker,
.section-label {
  margin: 0 0 14px;
  color: var(--red);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero .kicker {
  color: #ffffff;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  max-width: 11ch;
  margin: 0;
  font-size: clamp(3rem, 7vw, 6rem);
  line-height: 0.94;
  letter-spacing: 0;
}

h2 {
  margin: 0;
  font-size: clamp(1.9rem, 3.7vw, 4rem);
  line-height: 1.04;
  letter-spacing: 0;
}

h3 {
  margin: 0;
  font-size: 1.16rem;
}

.hero-copy {
  max-width: 680px;
  margin: 28px 0 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(1.05rem, 1.8vw, 1.32rem);
  line-height: 1.62;
}

.hero-actions,
.contact-band {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.hero-actions {
  margin-top: 34px;
}

.primary-action,
.secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 800;
  box-shadow:
    0 3px 8px rgba(11, 42, 91, 0.1),
    0 10px 22px rgba(11, 42, 91, 0.12);
  transition:
    box-shadow 160ms ease,
    transform 160ms ease;
}

.primary-action {
  background: var(--white);
  color: var(--ink);
}

.primary-action.dark {
  background: var(--ink);
  color: var(--white);
  box-shadow:
    0 4px 10px rgba(7, 23, 52, 0.18),
    0 12px 24px rgba(11, 42, 91, 0.18);
}

.secondary-action {
  border: 1px solid rgba(255, 255, 255, 0.58);
  color: var(--white);
}

.primary-action:hover,
.secondary-action:hover {
  transform: translateY(-1px);
  box-shadow:
    0 5px 12px rgba(11, 42, 91, 0.11),
    0 14px 26px rgba(11, 42, 91, 0.14);
}

.primary-action.dark:hover {
  box-shadow:
    0 5px 12px rgba(7, 23, 52, 0.2),
    0 14px 26px rgba(11, 42, 91, 0.2);
}

.primary-action:active,
.secondary-action:active {
  transform: translateY(1px);
  box-shadow:
    0 2px 6px rgba(11, 42, 91, 0.1),
    0 8px 16px rgba(11, 42, 91, 0.12);
}

.intro-band,
.works-band,
.timeline-band,
.contact-band {
  width: min(1160px, calc(100% - 36px));
  margin: 0 auto;
}

.intro-band {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(22px, 6vw, 86px);
  align-items: center;
  padding: clamp(44px, 9vw, 94px) 0;
  border-bottom: 1px solid var(--line);
}

.intro-band span {
  display: block;
  margin-bottom: 12px;
  color: var(--blue);
  font-size: 0.76rem;
  font-weight: 850;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.intro-band strong {
  display: block;
  font-size: clamp(1.9rem, 3.6vw, 3.8rem);
  line-height: 1.05;
}

.intro-band p,
.section-heading p,
.contact-band p {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.8;
}

.section-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  width: min(1160px, calc(100% - 36px));
  margin: 0 auto;
  padding: clamp(28px, 7vw, 82px) 0;
}

.feature-panel {
  display: grid;
  grid-template-columns: minmax(150px, 0.58fr) minmax(0, 1fr);
  min-height: 320px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.panel-visual {
  position: relative;
  overflow: hidden;
  background: #dfe9e5;
}

.panel-visual::before,
.panel-visual::after,
.panel-visual span {
  content: "";
  position: absolute;
  display: block;
}

.dentistry .panel-visual {
  background: linear-gradient(135deg, var(--soft-blue), #7db5ff);
}

.dentistry .panel-visual::before {
  width: 74px;
  height: 102px;
  top: 82px;
  left: 50%;
  border-radius: 44% 44% 38% 38%;
  background: #fffef9;
  box-shadow: inset -12px -18px 0 rgba(18, 104, 216, 0.16);
  transform: translateX(-50%);
}

.dentistry .panel-visual::after {
  width: 112px;
  height: 112px;
  right: -22px;
  bottom: -18px;
  border: 17px solid rgba(11, 42, 91, 0.55);
  border-radius: 50%;
}

.ventures .panel-visual {
  background: linear-gradient(135deg, #ffffff, #a8ccff);
}

.ventures .panel-visual::before {
  inset: 70px 26px auto;
  height: 92px;
  border: 10px solid rgba(11, 42, 91, 0.82);
  border-radius: 8px;
}

.ventures .panel-visual::after {
  right: 30px;
  bottom: 62px;
  width: 88px;
  height: 8px;
  border-radius: 999px;
  background: rgba(215, 38, 56, 0.9);
  box-shadow: -44px -30px 0 rgba(18, 104, 216, 0.9), -6px -56px 0 rgba(11, 42, 91, 0.88);
}

.news .panel-visual {
  background: linear-gradient(135deg, #ffffff, #ff9aa5);
}

.news .panel-visual::before {
  inset: 56px 34px auto;
  height: 126px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow:
    inset 0 30px 0 rgba(215, 38, 56, 0.22),
    inset 0 74px 0 rgba(11, 42, 91, 0.1);
}

.news .panel-visual::after {
  right: 36px;
  bottom: 55px;
  width: 70px;
  height: 70px;
  border: 12px solid rgba(11, 42, 91, 0.78);
  border-radius: 50%;
}

.legal .panel-visual {
  background: linear-gradient(135deg, #ffffff, #6faaff);
}

.legal .panel-visual::before {
  top: 62px;
  left: 50%;
  width: 116px;
  height: 116px;
  border: 11px solid rgba(11, 42, 91, 0.78);
  border-radius: 50% 50% 8px 8px;
  transform: translateX(-50%) rotate(45deg);
}

.legal .panel-visual::after {
  right: 24px;
  bottom: 56px;
  width: 118px;
  height: 10px;
  border-radius: 999px;
  background: rgba(215, 38, 56, 0.88);
  box-shadow: -34px -34px 0 rgba(255, 255, 255, 0.58);
}

.panel-content {
  display: flex;
  flex-direction: column;
  justify-content: end;
  padding: clamp(24px, 4vw, 42px);
}

.panel-content h2 {
  max-width: 9ch;
  font-size: clamp(1.9rem, 2.8vw, 3rem);
}

.panel-content p:last-child {
  margin: 20px 0 0;
  color: var(--muted);
  line-height: 1.72;
}

.works-band {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: clamp(26px, 5vw, 64px);
  align-items: start;
  padding: clamp(42px, 8vw, 94px) 0;
  border-top: 1px solid var(--line);
}

.section-heading h2 {
  margin-bottom: 22px;
}

.creative-list {
  display: grid;
  gap: 12px;
}

.creative-item {
  display: grid;
  grid-template-columns: 58px 1fr;
  grid-template-rows: auto auto;
  column-gap: 18px;
  align-items: center;
  min-height: 112px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--white);
}

.creative-item span {
  grid-row: 1 / 3;
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  color: var(--white);
  font-size: 1.55rem;
  font-weight: 900;
}

.creative-item.music span {
  background: var(--blue);
}

.creative-item.video span {
  background: var(--red);
}

.creative-item.paintings span {
  background: var(--navy);
}

.content-slots {
  width: min(1160px, calc(100% - 36px));
  margin: 0 auto;
  padding: clamp(42px, 8vw, 94px) 0;
  border-top: 1px solid var(--line);
}

.archive-toolbar {
  display: grid;
  grid-template-columns: minmax(220px, 0.9fr) minmax(0, 1.1fr);
  gap: 16px;
  align-items: end;
  margin-top: 28px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--navy);
  color: var(--white);
}

.search-field {
  display: grid;
  gap: 8px;
}

.search-field span {
  font-size: 0.8rem;
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.search-field input {
  width: 100%;
  min-height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: 14px;
  background: var(--white);
  color: var(--navy);
  font: inherit;
  font-weight: 700;
  padding: 0 14px;
}

.filter-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-pill {
  min-height: 36px;
  border: 1px solid rgba(255, 255, 255, 0.34);
  border-radius: 999px;
  background: transparent;
  color: var(--white);
  cursor: pointer;
  font: inherit;
  font-size: 0.88rem;
  font-weight: 850;
  padding: 0 13px;
}

.filter-pill.is-active {
  border-color: var(--red);
  background: var(--red);
}

.slot-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 28px;
}

.slot-panel {
  display: grid;
  gap: 22px;
  min-height: 260px;
  padding: clamp(22px, 4vw, 34px);
  border: 1px solid var(--line);
  border-radius: 22px;
  background: linear-gradient(180deg, var(--white), var(--soft-gray));
}

.slot-panel h3 {
  color: var(--navy);
  font-size: clamp(1.4rem, 2vw, 2rem);
}

.slot-panel.is-hidden {
  display: none;
}

.slot-list {
  display: grid;
  gap: 12px;
}

.empty-slot {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: center;
  min-height: 116px;
  margin: 0;
  border: 1px dashed rgba(18, 104, 216, 0.36);
  border-radius: 18px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.78);
  font-weight: 750;
}

.empty-slot::before {
  content: "";
  width: 12px;
  height: 12px;
  border: 3px solid var(--blue);
  border-radius: 50%;
  background: var(--white);
  box-shadow: 0 0 0 4px rgba(18, 104, 216, 0.1);
}

.data-card {
  display: block;
  gap: 14px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--white);
}

.data-card.has-image {
  display: grid;
  grid-template-columns: 104px minmax(0, 1fr);
}

.data-card img {
  width: 104px;
  height: 86px;
  border-radius: 12px;
  object-fit: cover;
  background: var(--soft-blue);
}

.data-card time {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--red);
  font-size: 0.8rem;
  font-weight: 850;
}

.data-card strong {
  display: block;
  color: var(--navy);
}

.data-card p {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.55;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.contact-links:empty {
  display: none;
}

.contact-links a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 14px;
  border: 1px solid rgba(11, 42, 91, 0.18);
  border-radius: 999px;
  background: var(--white);
  color: var(--navy);
  font-weight: 800;
}

.creative-item strong {
  font-size: 1.22rem;
}

.creative-item small {
  color: var(--muted);
  font-size: 0.95rem;
}

.timeline-band {
  padding: clamp(42px, 8vw, 90px) 0;
  border-top: 1px solid var(--line);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 26px;
}

.timeline article {
  padding: clamp(22px, 4vw, 34px);
  border-left: 5px solid var(--blue);
  background: rgba(255, 255, 255, 0.64);
}

.timeline time {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--red);
  font-weight: 850;
}

.timeline p {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.7;
}

.contact-band {
  justify-content: space-between;
  padding: clamp(36px, 7vw, 72px);
  border-radius: 22px 22px 0 0;
  background: linear-gradient(180deg, var(--white), var(--soft-gray));
}

.contact-band > div {
  max-width: 680px;
}

.contact-band .section-label {
  color: var(--red);
}

.brand-stripe {
  width: 100%;
  height: 6px;
  border-top: 1px solid var(--navy);
  border-bottom: 1px solid var(--navy);
  background:
    linear-gradient(
      90deg,
      var(--navy) 0 34%,
      var(--blue) 34% 58%,
      var(--red) 58% 78%,
      var(--white) 78% 100%
    );
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 24px clamp(18px, 4vw, 54px);
  background: var(--navy);
  color: var(--white);
  font-family: inherit;
  font-size: clamp(1rem, 1.7vw, 1.12rem);
  font-weight: 650;
  letter-spacing: 0;
}

.site-footer p,
.site-footer a {
  margin: 0;
  color: var(--white);
  font: inherit;
}

.copyright-toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 40;
  max-width: calc(100vw - 36px);
  padding: 12px 16px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  background: var(--navy);
  color: var(--white);
  box-shadow: 0 12px 28px rgba(11, 42, 91, 0.18);
  font-size: 0.92rem;
  font-weight: 750;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition:
    opacity 160ms ease,
    transform 160ms ease;
}

.copyright-toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 920px) {
  .site-header {
    grid-template-columns: 1fr auto auto;
  }

  .menu-button {
    display: grid;
  }

  .nav-links {
    position: absolute;
    top: calc(100% + 8px);
    right: 14px;
    left: 14px;
    display: none;
    flex-direction: column;
    gap: 0;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: var(--white);
    color: var(--navy);
    box-shadow: var(--shadow);
  }

  .site-header.is-menu-open .nav-links {
    display: flex;
  }

  .nav-links a {
    padding: 14px;
    border-radius: 6px;
  }

  .nav-links a:hover {
    background: var(--soft-blue);
  }

  .intro-band,
  .works-band,
  .archive-toolbar {
    grid-template-columns: 1fr;
  }

  .section-grid,
  .slot-grid,
  .timeline {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .site-header {
    gap: 12px;
    min-height: 68px;
    padding: 12px;
  }

  .brand {
    gap: 8px;
    font-size: 0.82rem;
  }

  .brand-mark {
    width: 32px;
    height: 32px;
  }

  .language-switcher {
    gap: 2px;
    padding: 3px;
  }

  .lang-button {
    min-width: 31px;
    height: 28px;
    font-size: 0.72rem;
  }

  .hero {
    min-height: 88svh;
  }

  .hero-image {
    background:
      linear-gradient(90deg, rgba(11, 42, 91, 0.92), rgba(11, 42, 91, 0.52)),
      url("assets/hero-mehmet-cavdaroglu.png") 62% center / cover no-repeat;
  }

  .hero-content {
    width: calc(100% - 28px);
    margin: 0 14px 62px;
  }

  h1 {
    font-size: clamp(2.5rem, 12vw, 4rem);
  }

  h2 {
    font-size: clamp(1.9rem, 9.8vw, 2.8rem);
  }

  .hero-actions {
    align-items: stretch;
  }

  .primary-action,
  .secondary-action {
    width: 100%;
  }

  .intro-band,
  .works-band,
  .timeline-band,
  .contact-band,
  .content-slots,
  .section-grid {
    width: calc(100% - 28px);
  }

  .feature-panel {
    grid-template-columns: 1fr;
  }

  .panel-visual {
    min-height: 180px;
  }

  .contact-band {
    padding: 28px 18px;
  }

  .site-footer {
    flex-direction: column;
  }
}

@media (max-width: 370px) {
  .brand {
    max-width: 140px;
    font-size: 0.78rem;
  }

  .brand span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .menu-button {
    width: 38px;
    height: 38px;
  }

  .lang-button {
    min-width: 29px;
  }
}