/* =====================================================================
 * Ana sayfa stilleri
 * ===================================================================== */

/* ----- Hero ----------------------------------------------------------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: 80px 0 100px;
  background: linear-gradient(180deg,
    var(--bg) 0%,
    var(--surface-2) 100%);
  border-bottom: 1px solid var(--border);
}
html[data-theme="dark"] .hero {
  background: linear-gradient(180deg, var(--bg) 0%, #0d0d10 100%);
}
.hero .grid-bg { mask-image: linear-gradient(180deg, rgba(0,0,0,0.6), transparent 80%); }

.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 1.25fr;
  gap: 64px;
  align-items: center;
}

.hero__kicker { margin-bottom: 28px; }
.hero__title {
  margin: 0 0 28px;
  font-weight: 700;
  letter-spacing: -0.03em;
}
.hero__title-emph {
  color: var(--accent-deep);
  font-style: italic;
  font-weight: 600;
}
html[data-theme="dark"] .hero__title-emph { color: var(--accent); }

.hero__cta {
  margin-top: 40px;
  display: flex;
  gap: 12px;
  align-items: center;
}

.hero__stats {
  margin: 56px 0 0;
  padding: 24px 0 0;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 32px;
}
.hero__stat dt {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
}
.hero__stat dd {
  margin: 4px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}
.hero__stat-sep {
  width: 1px;
  height: 36px;
  background: var(--border);
}

/* ----- Hero visualization -------------------------------------------- */
.hero__viz {
  margin: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow:
    0 1px 0 rgba(0, 0, 0, 0.02),
    0 24px 60px -30px rgba(15, 26, 51, 0.18);
}

.viz__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--surface-2);
}
.viz__head-left { display: flex; align-items: center; gap: 14px; }
.viz__head-title {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
  text-transform: uppercase;
}
.viz__head-right {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}
.viz__dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--hmi-ok);
  box-shadow: 0 0 0 2px rgba(34, 197, 94, 0.18);
  animation: pulseOk 2.4s ease-in-out infinite;
}
@keyframes pulseOk {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.4; }
}

.viz__svg {
  width: 100%;
  height: auto;
  aspect-ratio: 720 / 380;
  display: block;
}
.viz__axis-label, .viz__row-label, .viz__row-tag, .viz__axis text {
  font-family: var(--font-mono);
  fill: var(--muted);
}
.viz__axis text { font-size: 10px; letter-spacing: 0.06em; }
.viz__axis-label { font-size: 9px; letter-spacing: 0.22em; }
.viz__row-label { font-size: 12px; fill: var(--text); font-weight: 600; }
.viz__row-tag { font-size: 9px; letter-spacing: 0.18em; }
.viz__marker-label { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.12em; fill: #fff; font-weight: 600; }
.viz__val { font-size: 12px; fill: var(--text); font-weight: 600; }
.viz__val--crit { fill: var(--hmi-crit); }
.viz__unit { font-size: 10px; fill: var(--muted); }

.viz__spark {
  fill: none;
  stroke-width: 1.5;
  stroke-linejoin: round;
  stroke-linecap: round;
}
.viz__spark--past { stroke: var(--text-soft); opacity: 0.9; }
.viz__spark--pred { stroke: var(--muted-2); stroke-dasharray: 3 3; opacity: 0.7; }
.viz__spark--crit { stroke: var(--hmi-crit); opacity: 0.95; stroke-dasharray: 4 3; stroke-width: 1.8; }

.viz__alarm-halo {
  transform-origin: center;
  animation: alarmHalo 1.6s ease-in-out infinite;
}
@keyframes alarmHalo {
  0%   { r: 8;  opacity: 0.6; }
  100% { r: 18; opacity: 0; }
}

.viz__caption {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  background: var(--surface-2);
  font-size: 12px;
}
.viz__caption-l { display: flex; align-items: center; gap: 12px; }
.viz__caption-text { font-size: 12px; color: var(--text-soft); }
.viz__caption-r { color: var(--muted); letter-spacing: 0.06em; }
.viz__caption-r strong { color: var(--text); font-weight: 600; }

/* ----- Logo strip ---------------------------------------------------- */
.logos {
  padding: 40px 0;
  border-bottom: 1px solid var(--border);
}
.logos .hairline { margin-bottom: 28px; }
.logos__row {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
}
.logos__cell {
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px dashed var(--border);
  border-radius: 6px;
  background: var(--surface);
}

/* ----- Screens (HMI mocks) ------------------------------------------ */
.screens__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.screen { display: flex; flex-direction: column; gap: 20px; }
.screen__bezel {
  background: #0a0a0a;
  border-radius: 14px;
  padding: 12px;
  border: 1px solid var(--border);
  box-shadow: 0 1px 0 rgba(0,0,0,0.04), 0 30px 60px -40px rgba(15, 26, 51, 0.25);
}
.screen__chrome {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 10px 10px;
  color: #a1a1aa;
}
.screen__chrome-time, .screen__chrome-title {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #71717a;
}
.screen__chrome-title { color: #e4e4e7; }
.screen__body {
  background: #18181b;
  border-radius: 6px;
  height: 220px;
  overflow: hidden;
  position: relative;
}
.screen__body--alarm {
  background: linear-gradient(135deg, #1a1010 0%, #18181b 60%);
}
.screen__keys {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  margin-top: 10px;
  background: #27272a;
  border-radius: 6px;
  overflow: hidden;
}
.screen__keys span {
  background: #18181b;
  color: #a1a1aa;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 10px 4px;
  text-align: center;
}
.screen__caption { padding: 0 4px; }
.screen__caption h4 { color: var(--text); margin-bottom: 6px; }
.screen__caption p { color: var(--muted); font-size: 14px; }

.mock-svg { width: 100%; height: 100%; }
.mock-tag {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  fill: #71717a;
}
.mock-val {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 600;
  fill: #f4f4f5;
}
.mock-val--big { font-size: 28px; }
.mock-unit {
  font-family: var(--font-mono);
  font-size: 10px;
  fill: #a1a1aa;
}

.pump-blade {
  animation: pumpSpin 4s linear infinite;
}
@keyframes pumpSpin { to { transform: rotate(360deg); } }

/* alarm mock */
.alarm-mock {
  padding: 16px;
  color: #f4f4f5;
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.alarm-mock__hdr {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.alarm-mock__sev { color: var(--hmi-crit); font-weight: 600; }
.alarm-mock__code { color: #71717a; }
.alarm-mock__title {
  font-size: 18px;
  font-weight: 600;
  color: #fafafa;
  letter-spacing: -0.01em;
}
.alarm-mock__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 4px;
}
.alarm-mock__grid > div {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 4px;
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.alarm-mock__grid b { font-size: 13px; color: #fafafa; font-weight: 600; }
.alarm-mock__lbl {
  font-size: 8px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #71717a;
}
.alarm-mock__rec {
  margin-top: auto;
  padding-top: 8px;
  border-top: 1px dashed rgba(255,255,255,0.08);
}
.alarm-mock__rec p {
  font-size: 12px;
  color: #d4d4d8;
  margin-top: 2px;
  line-height: 1.4;
}

/* ----- How it works -------------------------------------------------- */
.how__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.how__step {
  padding: 40px 32px 40px 0;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.how__step:first-child { padding-left: 0; }
.how__step:not(:first-child) { padding-left: 32px; }
.how__step:last-child { border-right: none; }
.how__num {
  font-size: 36px;
  font-weight: 600;
  color: var(--accent-deep);
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}
html[data-theme="dark"] .how__num { color: var(--accent); }
.how__step h3 { margin-bottom: 4px; }
.how__step p { color: var(--text-soft); font-size: 15px; line-height: 1.5; }
.how__meta {
  margin-top: auto;
  padding-top: 16px;
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ----- Features ------------------------------------------------------ */
.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}
.feature {
  padding: 36px;
  background: var(--surface);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.feature__ico {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--accent-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 8px;
}
html[data-theme="dark"] .feature__ico { color: var(--accent); }
.feature__ico svg { width: 22px; height: 22px; }
.feature h3 { font-size: 18px; }
.feature p { font-size: 14px; line-height: 1.55; }

/* ----- Sectors ------------------------------------------------------- */
.sectors__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.sector {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  transition: border-color 160ms ease, transform 160ms ease;
  color: var(--text);
  overflow: hidden;
}
.sector:hover {
  border-color: var(--accent-deep);
  transform: translateY(-2px);
}
html[data-theme="dark"] .sector:hover { border-color: var(--accent); }

.sector--photo { padding: 0; gap: 0; }
.sector__thumb {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}
.sector__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 500ms cubic-bezier(0.2, 0.6, 0.2, 1);
}
.sector--photo:hover .sector__thumb img { transform: scale(1.04); }
.sector__body {
  padding: 24px 24px 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sector__num {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.22em;
  color: var(--muted);
}
.sector h3 { font-size: 20px; }
.sector p { font-size: 13px; color: var(--muted); line-height: 1.5; }
.sector__cta {
  margin-top: 10px;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent-deep);
}
html[data-theme="dark"] .sector__cta { color: var(--accent); }

/* ----- CTA panel ----------------------------------------------------- */
.cta__panel {
  position: relative;
  overflow: hidden;
  border-radius: 16px;
  padding: 64px 56px;
  background: var(--accent-deep);
  color: #f4f4f5;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 64px;
}
.cta__panel .grid-bg {
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.06) 1px, transparent 1px);
}
.cta__copy { position: relative; }
.cta__copy .eyebrow { color: var(--accent-blue, #6FB8E2); }
.cta__copy h2 { color: #ffffff; }
.cta__copy .lead { color: rgba(244, 244, 245, 0.78); }

.cta__form {
  position: relative;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  backdrop-filter: blur(4px);
}
.field { display: flex; flex-direction: column; gap: 6px; }
.field label {
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(244, 244, 245, 0.55);
}
.field input {
  height: 44px;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  padding: 0 14px;
  color: #fafafa;
  font-family: var(--font-sans);
  font-size: 14px;
  outline: none;
  transition: border-color 120ms ease;
}
.field input::placeholder { color: rgba(244, 244, 245, 0.35); }
.field input:focus { border-color: var(--accent); }
.cta__form .btn { background: var(--accent); color: #0F1A33; align-self: flex-start; }
.cta__form .btn:hover { background: var(--akceon-blue-soft); }
.cta__small {
  font-size: 10px;
  letter-spacing: 0.12em;
  color: rgba(244, 244, 245, 0.5);
}
.cta__small a { color: var(--accent); }

/* ----- Responsive ---------------------------------------------------- */
@media (max-width: 1100px) {
  .hero__inner { grid-template-columns: 1fr; gap: 48px; }
  .screens__grid { grid-template-columns: 1fr; }
  .how__steps { grid-template-columns: repeat(2, 1fr); }
  .how__step:nth-child(2) { border-right: none; }
  .how__step:nth-child(3), .how__step:nth-child(4) { border-top: 1px solid var(--border); }
  .features__grid { grid-template-columns: repeat(2, 1fr); }
  .sectors__grid { grid-template-columns: repeat(2, 1fr); }
  .logos__row { grid-template-columns: repeat(3, 1fr); }
  .cta__panel { grid-template-columns: 1fr; padding: 40px 32px; gap: 40px; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  :root { --section-pad-y: 80px; }
  .nav__links { display: none; }
  .how__steps { grid-template-columns: 1fr; }
  .how__step { border-right: none; border-bottom: 1px solid var(--border); padding-left: 0 !important; }
  .features__grid, .sectors__grid { grid-template-columns: 1fr; }
  .logos__row { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr; gap: 32px; }
}