/* ============================================================
   PROF. DR. ALPER YENIGUN — ONKOLOJI PLATFORMU
   style.css  |  Production-Ready  |  Cross-Browser
   ============================================================ */

/* ── RESET & BASE ── */
*, *::before, *::after {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --navy:       #070e1f;
  --navy-light: #0f1e3a;
  --navy-card:  #0d1b35;
  --teal:       #00c9a7;
  --teal-dim:   #00a88c;
  --teal-glow:  rgba(0, 201, 167, 0.18);
  --sky:        #38b6ff;
  --white:      #f0f6ff;
  --grey:       #7a96b8;
  --card-bg:    rgba(13, 27, 53, 0.85);
  --border:     rgba(0, 201, 167, 0.20);
  --error:      #ff6b6b;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  background-color: var(--navy);
  color: var(--white);
  overflow-x: hidden;
  line-height: 1.7;
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
}

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

/* ── ANIMATED CANVAS ── */
#network-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.45;
}

/* ============================================================
   MODAL
   ============================================================ */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 9999;
  background: rgba(2, 6, 18, 0.93);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  padding: 20px;
}
.modal-overlay.open {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
}

.modal-box {
  background: linear-gradient(160deg, #0d1b35 0%, #07111e 100%);
  border: 1px solid rgba(0, 201, 167, 0.40);
  border-radius: 24px;
  padding: 48px 44px;
  width: 100%;
  max-width: 490px;
  position: relative;
  -webkit-box-shadow: 0 40px 100px rgba(0,0,0,0.8), 0 0 80px rgba(0,201,167,0.06);
  box-shadow: 0 40px 100px rgba(0,0,0,0.8), 0 0 80px rgba(0,201,167,0.06);
  -webkit-animation: modalIn 0.35s cubic-bezier(0.22, 1, 0.36, 1) both;
  animation: modalIn 0.35s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@-webkit-keyframes modalIn {
  from { opacity: 0; -webkit-transform: translateY(30px) scale(0.95); transform: translateY(30px) scale(0.95); }
  to   { opacity: 1; -webkit-transform: none; transform: none; }
}
@keyframes modalIn {
  from { opacity: 0; transform: translateY(30px) scale(0.95); }
  to   { opacity: 1; transform: none; }
}

.modal-close {
  position: absolute;
  top: 18px; right: 18px;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.14);
  color: var(--grey);
  font-size: 15px;
  cursor: pointer;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  -webkit-transition: background 0.2s, color 0.2s;
  transition: background 0.2s, color 0.2s;
  line-height: 1;
}
.modal-close:hover {
  background: rgba(255, 80, 80, 0.2);
  color: #ffaaaa;
}

.modal-icon {
  width: 58px; height: 58px;
  background: linear-gradient(135deg, var(--teal), var(--sky));
  border-radius: 16px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  font-size: 26px;
  margin: 0 auto 16px;
  -webkit-box-shadow: 0 0 30px var(--teal-glow);
  box-shadow: 0 0 30px var(--teal-glow);
}

.modal-head {
  text-align: center;
  margin-bottom: 28px;
}
.modal-head h2 {
  font-size: 1.45rem;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--white);
}
.modal-head p {
  font-size: 0.84rem;
  color: var(--grey);
  margin-top: 7px;
}

.modal-divider {
  height: 1px;
  background: var(--border);
  margin-bottom: 26px;
}

.field-row {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  gap: 14px;
  margin-bottom: 14px;
}
.field-row .fg {
  -webkit-box-flex: 1;
  -ms-flex: 1;
  flex: 1;
}

.fg {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -ms-flex-direction: column;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}
.fg label {
  font-size: 0.72rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--grey);
}
.fg input {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 10px;
  padding: 13px 15px;
  color: var(--white);
  font-size: 0.9rem;
  font-family: Arial, Helvetica, sans-serif;
  outline: none;
  width: 100%;
  -webkit-transition: border-color 0.2s, background 0.2s, -webkit-box-shadow 0.2s;
  transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
  -webkit-appearance: none;
  appearance: none;
}
.fg input::-webkit-input-placeholder { color: #3a5570; }
.fg input:-ms-input-placeholder      { color: #3a5570; }
.fg input::placeholder                { color: #3a5570; }
.fg input:focus {
  border-color: var(--teal);
  background: rgba(0,201,167,0.06);
  -webkit-box-shadow: 0 0 0 3px rgba(0,201,167,0.12);
  box-shadow: 0 0 0 3px rgba(0,201,167,0.12);
}
.fg input.err {
  border-color: var(--error);
}

.ferr {
  font-size: 0.70rem;
  color: var(--error);
  display: none;
  margin-top: 2px;
}
.ferr.show { display: block; }

.kvkk-row {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: start;
  -ms-flex-align: start;
  align-items: flex-start;
  gap: 12px;
  margin: 16px 0 6px;
  padding: 14px 16px;
  background: rgba(0,201,167,0.06);
  border: 1px solid rgba(0,201,167,0.18);
  border-radius: 10px;
}
.kvkk-row input[type="checkbox"] {
  width: 17px;
  height: 17px;
  min-width: 17px;
  -ms-flex-negative: 0;
  flex-shrink: 0;
  cursor: pointer;
  margin-top: 3px;
  accent-color: var(--teal);
}
.kvkk-row label {
  font-size: 0.78rem;
  color: var(--grey);
  line-height: 1.6;
  cursor: pointer;
}
.kvkk-row label a {
  color: var(--teal);
  text-decoration: underline;
  text-underline-offset: 2px;
}

#err-kvkk {
  display: block;
  margin: 4px 0 16px;
}

.modal-submit {
  display: block;
  width: 100%;
  background: linear-gradient(135deg, var(--teal), var(--sky));
  color: var(--navy);
  padding: 15px;
  border-radius: 10px;
  font-size: 0.95rem;
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 700;
  border: none;
  cursor: pointer;
  letter-spacing: 0.04em;
  -webkit-transition: -webkit-transform 0.2s, -webkit-box-shadow 0.2s;
  transition: transform 0.2s, box-shadow 0.2s;
  -webkit-box-shadow: 0 4px 28px rgba(0,201,167,0.32);
  box-shadow: 0 4px 28px rgba(0,201,167,0.32);
}
.modal-submit:hover {
  -webkit-transform: translateY(-2px);
  transform: translateY(-2px);
  -webkit-box-shadow: 0 8px 40px rgba(0,201,167,0.48);
  box-shadow: 0 8px 40px rgba(0,201,167,0.48);
}
.modal-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  -webkit-transform: none;
  transform: none;
}

/* Success State */
.m-success {
  text-align: center;
  padding: 20px 0;
  display: none;
}
.m-success.show { display: block; }
.m-form.hide    { display: none; }

.m-success .si {
  font-size: 3.4rem;
  display: block;
  margin-bottom: 16px;
  line-height: 1;
}
.m-success h3 {
  font-size: 1.35rem;
  font-weight: 900;
  color: var(--teal);
  margin-bottom: 10px;
}
.m-success p {
  font-size: 0.88rem;
  color: var(--grey);
  line-height: 1.7;
}

/* ============================================================
   NAVIGATION
   ============================================================ */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 500;
  padding: 16px 6%;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: justify;
  -ms-flex-pack: justify;
  justify-content: space-between;
  background: rgba(7, 14, 31, 0.92);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  -webkit-transition: padding 0.3s;
  transition: padding 0.3s;
}
nav.scrolled { padding: 10px 6%; }

.nav-logo {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  -ms-flex-negative: 0;
  flex-shrink: 0;
}
.nav-logo-icon {
  width: 38px; height: 38px;
  background: linear-gradient(135deg, var(--teal), var(--sky));
  border-radius: 10px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  font-size: 18px;
  -ms-flex-negative: 0;
  flex-shrink: 0;
  -webkit-box-shadow: 0 0 18px var(--teal-glow);
  box-shadow: 0 0 18px var(--teal-glow);
  line-height: 1;
}
.nav-logo-text strong {
  display: block;
  font-size: 0.94rem;
  font-weight: 700;
  color: var(--white);
  white-space: nowrap;
}
.nav-logo-text span {
  font-size: 0.68rem;
  color: var(--teal);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

.nav-links {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  gap: 28px;
  list-style: none;
  margin: 0 auto;
  padding: 0 24px;
}
.nav-links a {
  font-size: 0.78rem;
  color: var(--grey);
  text-decoration: none;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  -webkit-transition: color 0.2s;
  transition: color 0.2s;
  white-space: nowrap;
}
.nav-links a:hover { color: var(--teal); }

.nav-cta {
  background: transparent;
  border-style: solid;
  border-width: 1px;
  border-color: var(--teal);
  color: var(--teal);
  padding: 9px 22px;
  border-radius: 6px;
  font-size: 0.78rem;
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  white-space: nowrap;
  -ms-flex-negative: 0;
  flex-shrink: 0;
  -webkit-transition: background 0.25s, color 0.25s, -webkit-box-shadow 0.25s;
  transition: background 0.25s, color 0.25s, box-shadow 0.25s;
}
.nav-cta:hover {
  background: var(--teal);
  color: var(--navy);
  -webkit-box-shadow: 0 0 24px var(--teal-glow);
  box-shadow: 0 0 24px var(--teal-glow);
}

/* Hamburger */
.hamburger {
  display: none;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -ms-flex-direction: column;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
  background: none;
  border: none;
  -ms-flex-negative: 0;
  flex-shrink: 0;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--grey);
  border-radius: 2px;
  -webkit-transition: 0.3s;
  transition: 0.3s;
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 70px; left: 0; right: 0;
  z-index: 499;
  background: rgba(7, 14, 31, 0.98);
  border-bottom: 1px solid var(--border);
  padding: 0 6%;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -ms-flex-direction: column;
  flex-direction: column;
}
.mobile-menu.open {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
}
.mobile-menu a {
  display: block;
  padding: 16px 0;
  font-size: 0.88rem;
  color: var(--grey);
  text-decoration: none;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-bottom: 1px solid rgba(0,201,167,0.08);
  -webkit-transition: color 0.2s;
  transition: color 0.2s;
}
.mobile-menu a:hover { color: var(--teal); }
.mobile-menu .mob-cta {
  display: block;
  margin: 16px 0;
  width: 100%;
  background: var(--teal);
  color: var(--navy);
  padding: 14px;
  border-radius: 8px;
  border: none;
  font-size: 0.88rem;
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 0.04em;
  text-align: center;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  text-align: center;
  padding: 130px 6% 80px;
}
.hero-inner { max-width: 820px; width: 100%; }

.hero-badge {
  display: -webkit-inline-box;
  display: -ms-inline-flexbox;
  display: inline-flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  gap: 10px;
  background: rgba(0,201,167,0.12);
  border-style: solid;
  border-width: 1px;
  border-color: rgba(0,201,167,0.30);
  border-radius: 50px;
  padding: 8px 20px;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--teal);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 36px;
  -webkit-animation: fadeUp 0.8s ease both;
  animation: fadeUp 0.8s ease both;
  white-space: nowrap;
}
.hero-badge .dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--teal);
  display: inline-block;
  -ms-flex-negative: 0;
  flex-shrink: 0;
  -webkit-animation: blink 1.6s infinite;
  animation: blink 1.6s infinite;
}

@-webkit-keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.2; }
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.2; }
}

@-webkit-keyframes fadeUp {
  from { opacity: 0; -webkit-transform: translateY(28px); transform: translateY(28px); }
  to   { opacity: 1; -webkit-transform: none; transform: none; }
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: none; }
}

.hero h1 {
  font-size: 3.6rem;
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--white);
  margin-bottom: 24px;
  -webkit-animation: fadeUp 0.9s 0.1s ease both;
  animation: fadeUp 0.9s 0.1s ease both;
}
.hero h1 .accent {
  background: linear-gradient(90deg, var(--teal), var(--sky));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 1.1rem;
  color: var(--grey);
  max-width: 560px;
  margin: 0 auto 48px;
  -webkit-animation: fadeUp 1s 0.2s ease both;
  animation: fadeUp 1s 0.2s ease both;
}

.hero-actions {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  gap: 16px;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  -webkit-animation: fadeUp 1s 0.3s ease both;
  animation: fadeUp 1s 0.3s ease both;
}

/* Buttons */
.btn-primary {
  background: linear-gradient(135deg, var(--teal), var(--sky));
  color: var(--navy);
  padding: 14px 36px;
  border-radius: 8px;
  font-size: 0.92rem;
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 700;
  border: none;
  cursor: pointer;
  letter-spacing: 0.04em;
  -webkit-transition: -webkit-transform 0.2s, -webkit-box-shadow 0.2s;
  transition: transform 0.2s, box-shadow 0.2s;
  -webkit-box-shadow: 0 4px 28px rgba(0,201,167,0.35);
  box-shadow: 0 4px 28px rgba(0,201,167,0.35);
  display: inline-block;
  text-decoration: none;
  line-height: 1.4;
}
.btn-primary:hover {
  -webkit-transform: translateY(-2px);
  transform: translateY(-2px);
  -webkit-box-shadow: 0 8px 40px rgba(0,201,167,0.5);
  box-shadow: 0 8px 40px rgba(0,201,167,0.5);
}

.btn-ghost {
  background: transparent;
  color: var(--white);
  padding: 14px 36px;
  border-radius: 8px;
  font-size: 0.92rem;
  font-family: Arial, Helvetica, sans-serif;
  border-style: solid;
  border-width: 1px;
  border-color: rgba(245,249,255,0.25);
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  line-height: 1.4;
  letter-spacing: 0.03em;
  -webkit-transition: border-color 0.2s, color 0.2s;
  transition: border-color 0.2s, color 0.2s;
}
.btn-ghost:hover {
  border-color: var(--teal);
  color: var(--teal);
}

/* ============================================================
   STATS STRIP
   ============================================================ */
.stats-strip {
  position: relative;
  z-index: 1;
  padding: 0 6%;
  margin-top: -20px;
  margin-bottom: 80px;
}
.stats-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  background: var(--border);
}
.stat-item {
  background: var(--card-bg);
  padding: 32px 20px;
  text-align: center;
  -webkit-box-flex: 1;
  -ms-flex: 1;
  flex: 1;
  -webkit-transition: background 0.2s;
  transition: background 0.2s;
}
/* gap simulation */
.stat-item + .stat-item {
  border-left: 1px solid var(--border);
}
.stat-item:hover { background: rgba(0,201,167,0.08); }
.stat-num {
  font-size: 2.4rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--teal), var(--sky));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  line-height: 1.2;
}
.stat-label {
  font-size: 0.75rem;
  color: var(--grey);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-top: 6px;
  display: block;
}

/* ============================================================
   SECTION COMMON
   ============================================================ */
section {
  position: relative;
  z-index: 1;
  padding: 90px 6%;
}

.section-label {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 12px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  gap: 10px;
}
.section-label::before {
  content: '';
  display: block;
  width: 28px; height: 1px;
  background: var(--teal);
  -ms-flex-negative: 0;
  flex-shrink: 0;
}
.section-title {
  font-size: 2.5rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 16px;
  color: var(--white);
}
.section-sub {
  font-size: 1rem;
  color: var(--grey);
  max-width: 560px;
  line-height: 1.8;
}

/* ============================================================
   ABOUT SECTION
   ============================================================ */
#about { padding-top: 90px; }

.about-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  gap: 80px;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
}
.about-body { -webkit-box-flex: 1; -ms-flex: 1; flex: 1; }
.about-body p { color: #b0c4de; font-size: 0.97rem; line-height: 1.85; }

.about-visual { -webkit-box-flex: 1; -ms-flex: 1; flex: 1; }
.about-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 40px;
  position: relative;
  overflow: hidden;
}
.about-card::before {
  content: '';
  position: absolute;
  top: -60px; right: -60px;
  width: 180px; height: 180px;
  background: -webkit-radial-gradient(circle, rgba(0,201,167,0.18), transparent 70%);
  background: radial-gradient(circle, rgba(0,201,167,0.18), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.profile-row {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
}
.profile-avatar {
  width: 64px; height: 64px;
  background: linear-gradient(135deg, var(--teal), var(--sky));
  border-radius: 50%;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  font-size: 26px;
  -ms-flex-negative: 0;
  flex-shrink: 0;
  -webkit-box-shadow: 0 0 24px var(--teal-glow);
  box-shadow: 0 0 24px var(--teal-glow);
  line-height: 1;
}
.profile-info strong { display: block; font-size: 1rem; color: var(--white); }
.profile-info span   { font-size: 0.8rem; color: var(--teal); }

.card-divider { height: 1px; background: var(--border); margin: 20px 0; }

.tag-row {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  gap: 8px;
}
.tag {
  background: rgba(0,201,167,0.10);
  border-style: solid;
  border-width: 1px;
  border-color: rgba(0,201,167,0.28);
  border-radius: 6px;
  padding: 5px 12px;
  font-size: 0.74rem;
  color: var(--teal);
  display: inline-block;
}
.card-note {
  font-size: 0.82rem;
  color: var(--grey);
  line-height: 1.7;
}

/* ============================================================
   HOW WE WORK — FEATURES GRID
   ============================================================ */
.nasil-intro {
  max-width: 1100px;
  margin: 0 auto 60px;
}
.features-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  gap: 20px;
}
.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px 30px;
  -webkit-box-flex: 1;
  -ms-flex: 1 1 30%;
  flex: 1 1 30%;
  min-width: 260px;
  -webkit-transition: -webkit-transform 0.25s, border-color 0.25s, -webkit-box-shadow 0.25s;
  transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
  position: relative;
  overflow: hidden;
}
.feature-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--teal), var(--sky));
  -webkit-transform: scaleX(0);
  transform: scaleX(0);
  -webkit-transform-origin: left;
  transform-origin: left;
  -webkit-transition: -webkit-transform 0.3s;
  transition: transform 0.3s;
}
.feature-card:hover {
  -webkit-transform: translateY(-6px);
  transform: translateY(-6px);
  border-color: rgba(0,201,167,0.45);
  -webkit-box-shadow: 0 20px 60px rgba(0,0,0,0.4);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.feature-card:hover::after { -webkit-transform: scaleX(1); transform: scaleX(1); }
.feature-icon { font-size: 2rem; margin-bottom: 20px; display: block; line-height: 1; }
.feature-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--white); margin-bottom: 12px; }
.feature-card p  { font-size: 0.87rem; color: var(--grey); line-height: 1.8; }

/* ============================================================
   WHY US
   ============================================================ */
.why-wrapper {
  max-width: 1100px;
  margin: 0 auto;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  gap: 80px;
  -webkit-box-align: start;
  -ms-flex-align: start;
  align-items: flex-start;
}
.why-left { -webkit-box-flex: 1; -ms-flex: 1; flex: 1; }
.why-right { -webkit-box-flex: 1.2; -ms-flex: 1.2; flex: 1.2; }

.why-list { margin-top: 40px; }
.why-item {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  gap: 18px;
  padding: 22px 0;
  border-bottom: 1px solid var(--border);
}
.why-item:last-child { border-bottom: none; }
.why-num {
  font-size: 2rem;
  font-weight: 900;
  color: rgba(0,201,167,0.2);
  line-height: 1;
  min-width: 36px;
  -ms-flex-negative: 0;
  flex-shrink: 0;
}
.why-text strong { display: block; font-size: 0.95rem; color: var(--white); margin-bottom: 6px; }
.why-text p      { font-size: 0.86rem; color: var(--grey); line-height: 1.75; }

/* Live card */
.collab-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 36px;
  margin-bottom: 16px;
}
.collab-header {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.dot-online {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--teal);
  -webkit-box-shadow: 0 0 8px var(--teal);
  box-shadow: 0 0 8px var(--teal);
  -webkit-animation: blink 2s infinite;
  animation: blink 2s infinite;
  -ms-flex-negative: 0;
  flex-shrink: 0;
}
.collab-title { font-size: 0.85rem; color: var(--white); font-weight: 700; }
.collab-sub   { font-size: 0.72rem; color: var(--grey); }

.expert-rows {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -ms-flex-direction: column;
  flex-direction: column;
  gap: 12px;
}
.expert-row {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  gap: 12px;
  background: rgba(255,255,255,0.04);
  border-radius: 10px;
  padding: 12px 16px;
}
.expert-av {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--teal-dim), var(--sky));
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  font-size: 15px;
  -ms-flex-negative: 0;
  flex-shrink: 0;
  line-height: 1;
}
.expert-info strong { display: block; font-size: 0.80rem; color: var(--white); }
.expert-info span   { font-size: 0.70rem; color: var(--grey); }
.expert-status {
  margin-left: auto;
  font-size: 0.65rem;
  color: var(--teal);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: rgba(0,201,167,0.12);
  padding: 3px 8px;
  border-radius: 4px;
  white-space: nowrap;
}

.mini-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px 24px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  gap: 16px;
}
.mini-icon {
  font-size: 1.6rem;
  width: 50px; height: 50px;
  background: rgba(0,201,167,0.12);
  border-radius: 12px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  -ms-flex-negative: 0;
  flex-shrink: 0;
  line-height: 1;
}
.mini-info strong { display: block; font-size: 1.2rem; font-weight: 900; color: var(--white); }
.mini-info span   { font-size: 0.75rem; color: var(--grey); }

/* ============================================================
   NETWORK SECTION
   ============================================================ */
.network-section { text-align: center; }
.network-section .section-label {
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
}
.network-section .section-label::before { display: none; }

.network-map-bg {
  max-width: 900px;
  margin: 50px auto 0;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 48px;
  position: relative;
  overflow: hidden;
}
.network-map-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: -webkit-radial-gradient(ellipse at 50% 0%, rgba(0,201,167,0.12), transparent 70%);
  background: radial-gradient(ellipse at 50% 0%, rgba(0,201,167,0.12), transparent 70%);
  pointer-events: none;
}
.city-grid {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  gap: 16px;
  position: relative;
}
.city-item {
  background: rgba(255,255,255,0.04);
  border-style: solid;
  border-width: 1px;
  border-color: var(--border);
  border-radius: 12px;
  padding: 20px 14px;
  text-align: center;
  -webkit-box-flex: 1;
  -ms-flex: 1 1 20%;
  flex: 1 1 20%;
  min-width: 140px;
  -webkit-transition: border-color 0.2s, -webkit-transform 0.2s;
  transition: border-color 0.2s, transform 0.2s;
}
.city-item:hover {
  border-color: var(--teal);
  -webkit-transform: translateY(-3px);
  transform: translateY(-3px);
}
.city-flag  { font-size: 1.4rem; margin-bottom: 8px; display: block; line-height: 1; }
.city-name  { font-size: 0.78rem; font-weight: 700; color: var(--white); }
.city-count { font-size: 0.68rem; color: var(--teal); margin-top: 3px; display: block; }

/* ============================================================
   VISION BAND
   ============================================================ */
.vision-band {
  background: linear-gradient(135deg, var(--navy-light), rgba(0,201,167,0.07));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.vision-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  gap: 80px;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
}
.vision-left  { -webkit-box-flex: 1; -ms-flex: 1; flex: 1; }
.vision-right { -webkit-box-flex: 1; -ms-flex: 1; flex: 1; }
.vision-body p { color: #b0c4de; font-size: 0.97rem; line-height: 1.85; }

.vision-quote {
  border-left: 3px solid var(--teal);
  padding-left: 28px;
}
.vision-quote blockquote {
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1.55;
  font-style: italic;
}
.vision-quote cite {
  display: block;
  margin-top: 16px;
  font-size: 0.78rem;
  color: var(--teal);
  letter-spacing: 0.08em;
  font-style: normal;
  text-transform: uppercase;
}

/* ============================================================
   CTA BAND
   ============================================================ */
.cta-band {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 100px 6%;
}
.cta-inner {
  max-width: 700px;
  margin: 0 auto;
  background: linear-gradient(135deg, rgba(0,201,167,0.10), rgba(56,182,255,0.06));
  border-style: solid;
  border-width: 1px;
  border-color: rgba(0,201,167,0.28);
  border-radius: 28px;
  padding: 64px 48px;
  position: relative;
  overflow: hidden;
}
.cta-inner::before {
  content: '';
  position: absolute;
  top: -80px; left: 50%;
  -webkit-transform: translateX(-50%);
  transform: translateX(-50%);
  width: 300px; height: 200px;
  background: -webkit-radial-gradient(ellipse, rgba(0,201,167,0.16), transparent 70%);
  background: radial-gradient(ellipse, rgba(0,201,167,0.16), transparent 70%);
  pointer-events: none;
}
.cta-inner h2 {
  font-size: 2.1rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--white);
  margin-bottom: 12px;
  position: relative;
}
.cta-inner p {
  font-size: 0.95rem;
  color: var(--grey);
  margin-bottom: 36px;
  position: relative;
}
.cta-btn {
  font-size: 1rem;
  padding: 16px 48px;
  position: relative;
}

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: 60px 6% 36px;
}
.footer-inner { max-width: 1100px; margin: 0 auto; }

.footer-top {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  gap: 60px;
  margin-bottom: 48px;
}
.footer-brand { -webkit-box-flex: 2; -ms-flex: 2; flex: 2; }
.footer-brand p {
  font-size: 0.85rem;
  color: var(--grey);
  line-height: 1.75;
  margin-top: 16px;
  max-width: 300px;
}
.footer-col { -webkit-box-flex: 1; -ms-flex: 1; flex: 1; }
.footer-col h4 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--grey);
  margin-bottom: 18px;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a {
  font-size: 0.85rem;
  color: #6080a0;
  text-decoration: none;
  -webkit-transition: color 0.2s;
  transition: color 0.2s;
}
.footer-col ul li a:hover { color: var(--teal); }

.footer-bottom {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: justify;
  -ms-flex-pack: justify;
  justify-content: space-between;
  padding-top: 28px;
  border-top: 1px solid var(--border);
  font-size: 0.74rem;
  color: #3d5570;
}

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.reveal {
  opacity: 0;
  -webkit-transform: translateY(36px);
  transform: translateY(36px);
  -webkit-transition: opacity 0.7s ease, -webkit-transform 0.7s ease;
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  -webkit-transform: none;
  transform: none;
}

/* ============================================================
   NASIL SECTION BG
   ============================================================ */
#nasil {
  background: -webkit-linear-gradient(top, transparent, rgba(0,201,167,0.04), transparent);
  background: linear-gradient(180deg, transparent, rgba(0,201,167,0.04), transparent);
}

/* ============================================================
   RESPONSIVE — TABLET  (max 960px)
   ============================================================ */
@media screen and (max-width: 960px) {

  .nav-links,
  .nav-cta { display: none; }
  .hamburger { display: -webkit-box; display: -ms-flexbox; display: flex; }

  .hero h1 { font-size: 2.6rem; }
  .section-title { font-size: 2rem; }

  .about-grid {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    gap: 40px;
  }

  .features-grid { gap: 16px; }
  .feature-card  { -ms-flex: 1 1 44%; flex: 1 1 44%; }

  .why-wrapper {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    gap: 40px;
  }

  .vision-inner {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    gap: 40px;
  }

  .city-item { -ms-flex: 1 1 40%; flex: 1 1 40%; min-width: 120px; }

  .stats-inner {
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
  }
  .stat-item { -ms-flex: 1 1 48%; flex: 1 1 48%; }
  .stat-item + .stat-item { border-left: none; }
  .stat-item:nth-child(odd) { border-right: 1px solid var(--border); }
  .stat-item:nth-child(1),
  .stat-item:nth-child(2) { border-bottom: 1px solid var(--border); }

  .footer-top {
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    gap: 32px;
  }
  .footer-brand { -ms-flex: 1 1 100%; flex: 1 1 100%; }
  .footer-col   { -ms-flex: 1 1 40%; flex: 1 1 40%; }

  .modal-box  { padding: 36px 24px; }
  .field-row  { -webkit-box-orient: vertical; -webkit-box-direction: normal; -ms-flex-direction: column; flex-direction: column; }

  .cta-inner  { padding: 48px 28px; }
  .cta-inner h2 { font-size: 1.7rem; }
}

/* ============================================================
   RESPONSIVE — MOBILE  (max 640px)
   ============================================================ */
@media screen and (max-width: 640px) {

  section       { padding: 60px 5%; }
  .hero         { padding: 110px 5% 60px; }
  .stats-strip  { padding: 0 5%; margin-bottom: 60px; }
  .cta-band     { padding: 60px 5%; }
  footer        { padding: 48px 5% 28px; }

  .hero h1    { font-size: 2rem; }
  .hero-badge { font-size: 0.65rem; padding: 7px 14px; letter-spacing: 0.08em; }
  .hero-sub   { font-size: 0.95rem; }

  .hero-actions {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
  }
  .btn-primary,
  .btn-ghost  { width: 100%; max-width: 300px; text-align: center; }

  .section-title { font-size: 1.65rem; }

  .stat-item { -ms-flex: 1 1 48%; flex: 1 1 48%; padding: 24px 12px; }
  .stat-num  { font-size: 1.9rem; }

  .feature-card { -ms-flex: 1 1 100%; flex: 1 1 100%; }

  .city-item { -ms-flex: 1 1 44%; flex: 1 1 44%; }

  .modal-box  { padding: 28px 16px; border-radius: 16px; }
  .modal-icon { width: 48px; height: 48px; font-size: 22px; }
  .modal-head h2 { font-size: 1.2rem; }

  .footer-bottom {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    gap: 10px;
    text-align: center;
  }

  .network-map-bg { padding: 28px 20px; }

  .vision-quote blockquote { font-size: 1rem; }
}