/* DevOps Turkey — main stylesheet */

:root {
  --navy: #12141c;
  --navy-soft: #1c1e29;
  --gold: #f2b705;
  --gold-dark: #d99e00;
  --blue: #26addA;
  --ink: #1a1c24;
  --muted: #6b7080;
  --paper: #ffffff;
  --paper-tint: #f4f6fb;
  --line: #e7e9f0;
  --shadow: 0 20px 40px -20px rgba(18, 20, 28, 0.25);
  --radius: 16px;
  --container: 1180px;
  --header-h: 76px;
  --ff-head: "Montserrat", "Inter", sans-serif;
  --ff-body: "Inter", "Roboto", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); }

body {
  margin: 0;
  font-family: var(--ff-body);
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

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

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

h1, h2, h3, h4 {
  font-family: var(--ff-head);
  font-weight: 800;
  line-height: 1.2;
  margin: 0 0 0.6em;
  letter-spacing: -0.01em;
}

p { margin: 0 0 1em; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.icon {
  width: 1em;
  height: 1em;
  display: inline-block;
  vertical-align: -0.125em;
  overflow: visible;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--ff-head);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold-dark);
  margin-bottom: 14px;
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--gold);
  display: inline-block;
}

.section-head {
  max-width: 640px;
  margin: 0 0 48px;
}

.section-head p {
  color: var(--muted);
  font-size: 1.05rem;
}

.section {
  padding: 100px 0;
}

.section--tint { background: var(--paper-tint); }
.section--dark { background: var(--navy); color: #cfd3e2; }
.section--dark h2, .section--dark h3 { color: #fff; }

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--ff-head);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 15px 28px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.btn:hover { transform: translateY(-2px); }

.btn--gold { background: var(--gold); color: var(--navy); }
.btn--gold:hover { background: var(--gold-dark); box-shadow: 0 12px 24px -8px rgba(242, 183, 5, 0.55); }

.btn--ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,0.4); }
.btn--ghost:hover { background: rgba(255,255,255,0.12); border-color: #fff; }

.btn--live {
  background: rgba(34, 197, 94, 0.12);
  color: #22c55e;
  border-color: rgba(34, 197, 94, 0.4);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn--live:hover {
  background: rgba(34, 197, 94, 0.22);
  border-color: #22c55e;
  box-shadow: 0 8px 20px -6px rgba(34, 197, 94, 0.35);
}
.btn--live::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #22c55e;
  flex-shrink: 0;
  animation: pulse-dot 1.8s ease-in-out infinite;
}

.btn--outline { background: transparent; color: var(--navy); border-color: var(--line); }
.btn--outline:hover { border-color: var(--navy); background: var(--navy); color: #fff; }

.btn--blue { background: var(--blue); color: #fff; }
.btn--blue:hover { background: #1e93b8; box-shadow: 0 12px 24px -8px rgba(38, 173, 218, 0.55); }

.btn--sm { padding: 10px 18px; font-size: 0.75rem; }

/* Header */

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(18, 20, 28, 0.55);
  backdrop-filter: blur(10px) saturate(140%);
  -webkit-backdrop-filter: blur(10px) saturate(140%);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.site-header.is-scrolled {
  background: rgba(18, 20, 28, 0.92);
  box-shadow: 0 10px 30px -18px rgba(0,0,0,0.6);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
}

.brand img { height: 28px; width: auto; }

.main-nav ul {
  list-style: none;
  display: flex;
  gap: 32px;
  margin: 0;
  padding: 0;
}

.main-nav a {
  color: #e9eaf2;
  font-family: var(--ff-head);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  position: relative;
  padding: 6px 0;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 2px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.main-nav a:hover::after,
.main-nav a.is-active::after { transform: scaleX(1); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: none;
  background: transparent;
  color: #fff;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.nav-toggle .icon { width: 22px; height: 22px; }

/* Hero */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  color: #fff;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background: url("../img/devops-berg.jpg") center 65% / cover no-repeat;
  transform: scale(1.05);
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(18,20,28,0.75) 0%, rgba(18,20,28,0.55) 45%, rgba(18,20,28,0.92) 100%);
}

.hero__content {
  position: relative;
  z-index: 2;
  padding-top: var(--header-h);
  max-width: 760px;
}

.hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.25);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 28px;
  backdrop-filter: blur(6px);
}

.hero__kicker .icon { color: var(--gold); }

.hero h1 {
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  color: #fff;
  margin-bottom: 20px;
}

.hero h1 span { color: var(--gold); }

.hero p {
  font-size: 1.15rem;
  color: #d8dae6;
  max-width: 560px;
  margin-bottom: 36px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 64px;
}

.hero__stats {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
  border-top: 1px solid rgba(255,255,255,0.18);
  padding-top: 28px;
}

.hero__stats div strong {
  display: block;
  font-family: var(--ff-head);
  font-size: 1.8rem;
  color: #fff;
}

.hero__stats div span {
  font-size: 0.8rem;
  color: #aeb2c4;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.scroll-cue {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  color: rgba(255,255,255,0.7);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  animation: floaty 2.4s ease-in-out infinite;
}

@keyframes floaty {
  0%, 100% { transform: translate(-50%, 0); }
  50% { transform: translate(-50%, 8px); }
}

/* Feature cards */

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px 30px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: transparent;
}

.feature-card__icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--navy);
  margin-bottom: 22px;
}

.feature-card__icon .icon { width: 26px; height: 26px; }

.feature-card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.feature-card p { color: var(--muted); font-size: 0.95rem; margin: 0; }

/* Members */

.members-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 32px 24px;
}

.member-card {
  text-align: center;
}

.member-card__photo {
  width: 104px;
  height: 104px;
  border-radius: 50%;
  margin: 0 auto 18px;
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 3px solid var(--paper-tint);
}

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

.member-card h3 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.member-card p {
  color: var(--muted);
  font-size: 0.85rem;
  margin: 0;
  line-height: 1.4;
}

.member-card p span {
  display: block;
}

/* Social row */

.social-row {
  display: flex;
  justify-content: center;
  gap: 18px;
  margin-top: 56px;
  flex-wrap: wrap;
}

.social-row a {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--navy);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease, transform 0.2s ease;
}

.social-row a .icon { width: 20px; height: 20px; }

.social-row a:hover { background: var(--gold); color: var(--navy); transform: translateY(-3px); }

/* DevOpsDays spotlight */

.spotlight {
  position: relative;
  color: #fff;
  background: linear-gradient(120deg, #0f1119, #1c1e29 60%, #232a3d);
  overflow: hidden;
}

.spotlight::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 85% 20%, rgba(242,183,5,0.18), transparent 55%);
}

.spotlight .container {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 64px;
  align-items: center;
}

.spotlight h2 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); }
.spotlight p { color: #b7bbcd; font-size: 1.05rem; }

.spotlight__badge {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(242,183,5,0.14);
  color: var(--gold);
  font-family: var(--ff-head);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.spotlight__badge--live {
  background: rgba(34, 197, 94, 0.15);
  color: #22c55e;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.spotlight__badge--live::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.5);
  animation: pulse-dot 1.8s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes pulse-dot {
  0%   { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.55); }
  70%  { box-shadow: 0 0 0 7px rgba(34, 197, 94, 0); }
  100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}

.video-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 30px 60px -20px rgba(0,0,0,0.55);
  border: 1px solid rgba(255,255,255,0.1);
}

.video-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* City strip */

.city-strip {
  background: var(--paper-tint);
  text-align: center;
  padding: 48px 0;
}

.city-strip h2 { font-size: clamp(1.8rem, 3vw, 2.4rem); }
.city-strip p { color: var(--muted); font-size: 1.05rem; }

/* Events */

.event-highlight {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  background: linear-gradient(120deg, var(--navy), #232a3d);
  color: #fff;
  border-radius: var(--radius);
  padding: 36px 40px;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease;
}

.event-highlight:hover { transform: translateY(-3px); }

.event-highlight__body { min-width: 0; }

.event-highlight__body h3 {
  color: #fff;
  font-size: 1.5rem;
  margin-bottom: 6px;
}

.event-highlight__body p {
  color: #b7bbcd;
  margin: 0;
  max-width: 480px;
}

.event-highlight__cta {
  flex-shrink: 0;
}

.events-list {
  margin-top: 28px;
  border-top: 1px solid var(--line);
}

.event-row {
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 20px 4px;
  border-bottom: 1px solid var(--line);
  transition: background 0.2s ease;
}

.event-row:hover { background: rgba(18,20,28,0.03); }

.event-row__date {
  flex: 0 0 auto;
  width: 74px;
  text-align: center;
  font-family: var(--ff-head);
  color: var(--gold-dark);
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.event-row__date span {
  display: block;
  font-size: 1.5rem;
  color: var(--ink);
  line-height: 1.1;
}

.event-row__body { flex: 1 1 auto; min-width: 0; }
.event-row__body h3 { font-size: 1rem; margin-bottom: 2px; }
.event-row__body p { color: var(--muted); font-size: 0.88rem; margin: 0; }

.event-row__go {
  flex: 0 0 auto;
  color: var(--muted);
  width: 16px;
  height: 16px;
}

/* Newsletter */

.newsletter {
  border-radius: 24px;
  background: var(--navy);
  color: #fff;
  padding: 56px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}

.newsletter h3 { color: #fff; font-size: 1.6rem; }
.newsletter p { color: #b7bbcd; margin-bottom: 0; }

.newsletter-form {
  display: flex;
  gap: 12px;
}

.newsletter-form input[type="email"] {
  flex: 1;
  padding: 15px 18px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.08);
  color: #fff;
  font-family: var(--ff-body);
  font-size: 0.95rem;
}

.newsletter-form input[type="email"]::placeholder { color: #8d91a4; }
.newsletter-form input[type="email"]:focus { outline: 2px solid var(--gold); outline-offset: 2px; }

.newsletter-form label { display: none; }

/* Sponsors */

.sponsors {
  text-align: center;
}

.sponsors .section-head { margin-left: auto; margin-right: auto; text-align: center; }

.sponsor-row {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 48px;
  flex-wrap: wrap;
  margin: 40px 0 44px;
}

.sponsor-row img {
  height: 46px;
  width: auto;
  filter: grayscale(1);
  opacity: 0.75;
  transition: filter 0.2s ease, opacity 0.2s ease;
}

.sponsor-row img:hover { filter: grayscale(0); opacity: 1; }

/* Blog */

.blog-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 36px;
}

#retainable-rss-embed { margin-top: 8px; }

/* Footer */

.site-footer {
  background: var(--navy);
  color: #9ba0b4;
  padding: 56px 0 28px;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 40px;
  flex-wrap: wrap;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand img { height: 26px; margin-bottom: 14px; }
.footer-brand p { max-width: 320px; font-size: 0.9rem; }

.footer-links {
  display: flex;
  gap: 64px;
  flex-wrap: wrap;
}

.footer-links h4 {
  color: #fff;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.footer-links ul { list-style: none; margin: 0; padding: 0; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 0.9rem; color: #9ba0b4; transition: color 0.2s ease; }
.footer-links a:hover { color: var(--gold); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 28px;
  font-size: 0.82rem;
}

.footer-bottom .social-row { margin-top: 0; }
.footer-bottom .social-row a { width: 38px; height: 38px; background: rgba(255,255,255,0.06); }
.footer-bottom .social-row a .icon { width: 16px; height: 16px; }

/* Back to top */

.go-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gold);
  color: var(--navy);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 12px 24px -8px rgba(0,0,0,0.4);
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity 0.25s ease, transform 0.25s ease;
  z-index: 90;
  border: none;
  cursor: pointer;
}

.go-top.is-visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
.go-top .icon { width: 20px; height: 20px; }

/* Responsive */

@media (max-width: 1024px) {
  .features { grid-template-columns: repeat(3, 1fr); gap: 20px; }
  .spotlight .container { grid-template-columns: 1fr; gap: 40px; }
  .newsletter { grid-template-columns: 1fr; padding: 40px; }
  .footer-links { gap: 40px; }
}

@media (max-width: 860px) {
  .main-nav, .header-actions .btn { display: none; }
  .nav-toggle { display: flex; }
  .features { grid-template-columns: 1fr; }
  .section { padding: 72px 0; }
  .hero__stats { gap: 32px; }
  .event-highlight { padding: 28px; }
}

@media (max-width: 560px) {
  .newsletter-form { flex-direction: column; }
  .footer-top { flex-direction: column; }
  .sponsor-row { gap: 28px; }
  .event-highlight__actions { width: 100%; }
  .event-highlight__actions .btn { flex: 1 1 auto; justify-content: center; }
  .event-row { gap: 14px; }
}

/* Mobile nav panel */

.mobile-nav {
  position: fixed;
  inset: var(--header-h) 0 0 0;
  background: rgba(15, 17, 25, 0.98);
  backdrop-filter: blur(10px);
  z-index: 99;
  transform: translateY(-12px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  display: flex;
  flex-direction: column;
  padding: 32px 24px;
}

.mobile-nav.is-open { opacity: 1; transform: translateY(0); pointer-events: auto; }

.mobile-nav ul {
  list-style: none;
  margin: 0 0 32px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-nav a {
  display: block;
  padding: 16px 4px;
  font-family: var(--ff-head);
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}