/* MyDISK / onlinebackup.com.tr */
:root,
[data-theme="dark"] {
  color-scheme: dark;
  --bg: #030712;
  --bg-elevated: #0a0f1e;
  --bg-card: rgba(15, 23, 42, 0.65);
  --header-bg: rgba(3, 7, 18, 0.82);
  --nav-mobile-bg: rgba(3, 7, 18, 0.96);
  --border: rgba(148, 163, 184, 0.12);
  --text: #f1f5f9;
  --text-secondary: #cbd5e1;
  --muted: #94a3b8;
  --input-bg: rgba(0, 0, 0, 0.25);
  --hover-bg: rgba(255, 255, 255, 0.04);
  --cyan: #22d3ee;
  --cyan-dim: rgba(34, 211, 238, 0.15);
  --violet: #a78bfa;
  --violet-dim: rgba(167, 139, 250, 0.15);
  --emerald: #34d399;
  --emerald-dim: rgba(52, 211, 153, 0.15);
  --gradient: linear-gradient(135deg, #22d3ee 0%, #a78bfa 50%, #34d399 100%);
  --mesh-1: rgba(34, 211, 238, 0.18);
  --mesh-2: rgba(167, 139, 250, 0.14);
  --mesh-3: rgba(52, 211, 153, 0.08);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
  --nav-link: #94a3b8;
  --nav-link-active-bg: rgba(255, 255, 255, 0.06);
  --lang-switch-bg: rgba(255, 255, 255, 0.05);
  --btn-primary-text: #030712;
}

[data-theme="light"] {
  color-scheme: light;
  --bg: #f1f5f9;
  --bg-elevated: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.88);
  --header-bg: rgba(255, 255, 255, 0.88);
  --nav-mobile-bg: rgba(255, 255, 255, 0.98);
  --border: rgba(15, 23, 42, 0.1);
  --text: #0f172a;
  --text-secondary: #334155;
  --muted: #64748b;
  --input-bg: #ffffff;
  --hover-bg: rgba(15, 23, 42, 0.04);
  --cyan: #0891b2;
  --cyan-dim: rgba(8, 145, 178, 0.12);
  --violet: #7c3aed;
  --violet-dim: rgba(124, 58, 237, 0.1);
  --emerald: #059669;
  --emerald-dim: rgba(5, 150, 105, 0.1);
  --gradient: linear-gradient(135deg, #0891b2 0%, #7c3aed 50%, #059669 100%);
  --mesh-1: rgba(8, 145, 178, 0.12);
  --mesh-2: rgba(124, 58, 237, 0.1);
  --mesh-3: rgba(5, 150, 105, 0.08);
  --shadow: 0 24px 64px rgba(15, 23, 42, 0.12);
  --btn-primary-text: #ffffff;
  --nav-link: #334155;
  --nav-link-active-bg: rgba(8, 145, 178, 0.12);
  --lang-switch-bg: #e2e8f0;
}

:root {
  --radius: 16px;
  --radius-lg: 24px;
  --font: "Plus Jakarta Sans", system-ui, sans-serif;
  --max: 1180px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.bg-mesh {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 80% 60% at 10% -10%, var(--mesh-1), transparent),
    radial-gradient(ellipse 60% 50% at 90% 10%, var(--mesh-2), transparent),
    radial-gradient(ellipse 50% 40% at 50% 100%, var(--mesh-3), transparent),
    var(--bg);
  transition: background 0.3s;
}

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background 0.25s, border-color 0.25s, backdrop-filter 0.25s;
}
[data-theme="light"] .site-header {
  background: var(--header-bg);
  border-bottom-color: var(--border);
}
.site-header.scrolled {
  background: var(--header-bg);
  border-color: var(--border);
  backdrop-filter: blur(16px);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: 72px;
}
.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
  /* Orijinal logo PNG: seffaf zemin + beyaz yazi — siyah zemin sart (mydisk.com.tr ile ayni) */
  background: #000000;
  border-radius: 6px;
  padding: 3px 8px;
  line-height: 0;
}
.logo-img {
  display: block;
  height: 44px;
  width: 154px;
  max-width: none;
  object-fit: contain;
  object-position: left center;
}

.logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--gradient);
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 1.1rem;
  color: #030712;
}
[data-theme="light"] .logo-mark { color: var(--btn-primary-text); }

.logo-text {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}
.logo-text small {
  display: block;
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-left: auto;
}
.nav a {
  color: var(--nav-link);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.5rem 0.75rem;
  border-radius: 10px;
  transition: color 0.2s, background 0.2s;
}
.nav a:hover,
.nav a.active {
  color: var(--text);
  background: var(--nav-link-active-bg);
}
.nav a.active {
  box-shadow: inset 0 0 0 1px var(--border);
}
[data-theme="light"] .nav a:hover,
[data-theme="light"] .nav a.active {
  color: #0f172a;
}

.theme-toggle {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--hover-bg);
  color: var(--text);
  cursor: pointer;
  font-size: 1rem;
  transition: background 0.2s, transform 0.15s;
}
.theme-toggle:hover { transform: scale(1.05); }

.lang-switch {
  display: flex;
  gap: 2px;
  padding: 3px;
  background: var(--lang-switch-bg);
  border-radius: 10px;
  border: 1px solid var(--border);
}
.lang-switch button {
  border: none;
  background: transparent;
  color: var(--nav-link);
  font: inherit;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.35rem 0.55rem;
  border-radius: 7px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}
.lang-switch button.active {
  background: var(--cyan-dim);
  color: var(--cyan);
}
[data-theme="light"] .lang-switch button.active {
  background: #ffffff;
  color: #0891b2;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.08);
}

.nav-toggle {
  display: none;
  margin-left: auto;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 1.25rem;
  padding: 0.35rem 0.6rem;
  border-radius: 10px;
  cursor: pointer;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  border-radius: 12px;
  font: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s;
}
.btn:hover { transform: translateY(-1px); }
.btn-sm { padding: 0.45rem 0.9rem; font-size: 0.8rem; }
.btn-lg { padding: 0.85rem 1.5rem; font-size: 0.95rem; }
.btn-primary {
  background: var(--gradient);
  color: var(--btn-primary-text);
  box-shadow: 0 8px 32px rgba(34, 211, 238, 0.25);
}
[data-theme="light"] .btn-primary {
  color: #ffffff;
  box-shadow: 0 4px 16px rgba(8, 145, 178, 0.35);
}
.btn-primary:hover { box-shadow: 0 12px 40px rgba(34, 211, 238, 0.35); }
[data-theme="light"] .btn-primary:hover {
  box-shadow: 0 6px 20px rgba(8, 145, 178, 0.45);
}
.btn-secondary {
  background: var(--emerald-dim);
  color: var(--emerald);
  border: 1px solid rgba(52, 211, 153, 0.3);
}
.btn-ghost {
  background: var(--hover-bg);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-outline-cyan {
  background: transparent;
  color: var(--cyan);
  border: 1px solid rgba(34, 211, 238, 0.35);
}

/* Hero */
.hero {
  padding: 5rem 0 4rem;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--cyan);
  margin-bottom: 1rem;
}
.eyebrow::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--cyan);
  border-radius: 2px;
}
.hero h1 {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin: 0 0 1.25rem;
}
.lead {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 34rem;
  margin-bottom: 2rem;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  position: relative;
}
.hero-visual::before {
  content: "";
  position: absolute;
  inset: -20%;
  background: radial-gradient(circle, var(--cyan-dim), transparent 70%);
  pointer-events: none;
}
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  backdrop-filter: blur(12px);
  animation: float 6s ease-in-out infinite;
}
.stat-card:nth-child(2) { animation-delay: -2s; margin-top: 2rem; }
.stat-card:nth-child(3) { animation-delay: -4s; grid-column: span 2; }
.stat-card.accent { border-color: rgba(167, 139, 250, 0.35); }
.stat-label { display: block; font-size: 0.75rem; color: var(--muted); margin-bottom: 0.35rem; }
.stat-value {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

/* Sections */
.section { padding: 5rem 0; }
.section-title {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  text-align: center;
  margin: 0 0 0.5rem;
}
.section-sub {
  text-align: center;
  color: var(--muted);
  max-width: 36rem;
  margin: 0 auto 3rem;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  backdrop-filter: blur(12px);
  transition: border-color 0.25s, transform 0.25s;
  position: relative;
  overflow: hidden;
}
.product-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  opacity: 0;
  transition: opacity 0.25s;
}
.product-card.es::before { background: linear-gradient(90deg, var(--violet), var(--cyan)); }
.product-card.bk::before { background: linear-gradient(90deg, var(--emerald), var(--cyan)); }
.product-card:hover {
  border-color: rgba(148, 163, 184, 0.25);
  transform: translateY(-4px);
}
.product-card:hover::before { opacity: 1; }
.product-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 0.85rem;
  margin-bottom: 1.25rem;
}
.product-icon.es { background: var(--violet-dim); color: var(--violet); }
.product-icon.bk { background: var(--emerald-dim); color: var(--emerald); }
.product-card h3 {
  font-size: 1.35rem;
  font-weight: 700;
  margin: 0 0 0.75rem;
  letter-spacing: -0.02em;
}
.product-card > p { color: var(--muted); margin: 0 0 1.25rem; font-size: 0.95rem; }
.product-card ul {
  margin: 0 0 1.75rem;
  padding: 0;
  list-style: none;
}
.product-card li {
  position: relative;
  padding-left: 1.35rem;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.product-card li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--cyan);
  font-weight: 700;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}
.feature {
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--hover-bg);
}
.feature h4 { margin: 0 0 0.5rem; font-size: 1rem; }
.feature p { margin: 0; font-size: 0.875rem; color: var(--muted); }

/* Downloads */
.download-section {
  background: linear-gradient(180deg, transparent, var(--cyan-dim));
}
.download-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  backdrop-filter: blur(16px);
}
.download-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1rem 0;
}
.badge {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.25rem 0.55rem;
  border-radius: 6px;
  background: var(--cyan-dim);
  color: var(--cyan);
}
.badge.signed { background: var(--emerald-dim); color: var(--emerald); }
.download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-bottom: 1.5rem;
}
.steps-list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}
.steps-list li {
  counter-increment: step;
  position: relative;
  padding-left: 2.25rem;
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
  color: var(--muted);
}
.steps-list li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 8px;
  background: var(--cyan-dim);
  color: var(--cyan);
  font-size: 0.75rem;
  font-weight: 700;
  display: grid;
  place-items: center;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}
.contact-list {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
}
.contact-list li { margin-bottom: 0.65rem; color: var(--muted); }
.contact-list strong { color: var(--text); }
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.contact-form label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--muted);
}
.contact-form input,
.contact-form textarea {
  font: inherit;
  padding: 0.75rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--text);
  transition: border-color 0.2s;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: rgba(34, 211, 238, 0.5);
}

/* Login page */
.login-page {
  min-height: calc(100vh - 80px);
  display: grid;
  place-items: center;
  padding: 3rem 2rem;
}
.login-card {
  width: min(440px, 100%);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow);
  text-align: center;
}
.login-card h1 {
  font-size: 1.5rem;
  font-weight: 800;
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}
.login-card .sub { color: var(--muted); margin-bottom: 2rem; font-size: 0.95rem; }
.login-divider {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 1.75rem 0;
  color: var(--muted);
  font-size: 0.8rem;
}
.login-divider::before,
.login-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}
.login-dl { text-align: left; }
.login-dl h3 { font-size: 0.95rem; margin: 0 0 0.75rem; }
.login-footer {
  margin-top: 1.5rem;
  font-size: 0.85rem;
  color: var(--muted);
}
.login-footer a { color: var(--cyan); }

.back-home {
  position: fixed;
  top: 1.25rem;
  left: 1.25rem;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  transition: color 0.2s;
}
.back-home:hover { color: var(--text); }

.page-hero .brand-motto {
  font-family: "Segoe Print", "Bradley Hand", cursive;
  font-size: 1.35rem;
  color: var(--cyan);
  margin: 0 0 0.5rem;
  letter-spacing: 0.02em;
}
.page-hero .brand-tagline {
  font-size: 0.95rem;
  color: var(--muted);
  margin-top: 0.75rem;
}

.page-hero {
  padding: 4rem 0 2rem;
  text-align: center;
}
.page-hero h1 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
}
.page-hero .lead {
  margin-inline: auto;
}

.product-page-card {
  max-width: 820px;
  margin-inline: auto;
}

.teaser-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
.teaser-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  backdrop-filter: blur(12px);
  text-decoration: none;
  color: inherit;
  transition: transform 0.25s, border-color 0.25s;
}
.teaser-card:hover {
  transform: translateY(-4px);
  border-color: rgba(148, 163, 184, 0.3);
}
.teaser-card p { color: var(--muted); flex: 1; }
.teaser-card .link-arrow {
  margin-top: 1rem;
  color: var(--cyan);
  font-weight: 600;
  font-size: 0.9rem;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  margin-top: 2rem;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--muted);
}
.footer-links { display: flex; gap: 1.25rem; }
.footer-links a { color: var(--muted); text-decoration: none; }
.footer-links a:hover { color: var(--cyan); }

/* Responsive */
@media (max-width: 960px) {
  .hero-grid,
  .product-grid,
  .feature-grid,
  .download-panel,
  .contact-grid,
  .teaser-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; max-width: 360px; margin-inline: auto; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .nav-toggle { display: block; }
  .nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    padding: 1rem;
    background: var(--nav-mobile-bg);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(16px);
  }
  .nav.open { display: flex; }
  .header-inner { position: relative; flex-wrap: wrap; }
  .lang-switch { margin-left: auto; margin-right: 0.5rem; }
  .feature-grid { grid-template-columns: 1fr; }
}