/* ==========================================================================
   Hayat Kiti - Afet Acil Durum Gıda ve Su Çözümleri
   Derleme gerektirmeyen, vanilla CSS. Mobile-first ve responsive.
   ========================================================================== */

:root {
  --color-bg: #0f1620;
  --color-surface: #16202c;
  --color-surface-2: #1d2a38;
  --color-text: #e8edf2;
  --color-muted: #9fb0c0;
  --color-accent: #e63946;
  --color-accent-dark: #c32f3b;
  --color-water: #2a9d8f;
  --color-line: rgba(255, 255, 255, 0.1);
  --max-width: 1200px;
  --nav-height: 70px;
  --radius: 16px;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
  --transition: 0.35s cubic-bezier(0.22, 1, 0.36, 1);
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --font-head: "Plus Jakarta Sans", var(--font-body);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

h1,
h2,
h3 {
  font-family: var(--font-head);
  font-weight: 800;
  line-height: 1.12;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2.1rem, 6vw, 4rem);
}

h2 {
  font-size: clamp(1.7rem, 4.5vw, 2.8rem);
}

h3 {
  font-size: clamp(1.15rem, 2.5vw, 1.4rem);
}

p {
  margin: 0 0 1rem;
  color: var(--color-muted);
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(1.2rem, 4vw, 2.5rem);
}

.accent {
  color: var(--color-accent);
}

.water {
  color: var(--color-water);
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: 1000;
  background: var(--color-accent);
  color: #fff;
  padding: 0.6rem 1rem;
  border-radius: 0 0 8px 0;
}

.skip-link:focus {
  left: 0;
}

/* ============================ Navbar ============================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 100;
  display: flex;
  align-items: center;
  transition: background var(--transition), box-shadow var(--transition);
  background: linear-gradient(180deg, rgba(15, 22, 32, 0.55), rgba(15, 22, 32, 0));
}

.navbar.scrolled {
  background: rgba(15, 22, 32, 0.92);
  backdrop-filter: blur(10px);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
}

.navbar__inner {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(1.2rem, 4vw, 2.5rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: 0.02em;
}

.brand__mark {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--color-accent);
  display: grid;
  place-items: center;
  font-size: 1.1rem;
  box-shadow: 0 6px 18px rgba(230, 57, 70, 0.45);
}

.brand small {
  display: block;
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--color-muted);
  text-transform: uppercase;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-menu a {
  display: inline-block;
  padding: 0.5rem 0.85rem;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
  transition: background var(--transition), color var(--transition);
}

.nav-menu a:hover,
.nav-menu a:focus-visible,
.nav-menu a.active {
  background: rgba(255, 255, 255, 0.1);
}

.nav-menu a.nav-cta {
  background: var(--color-accent);
  margin-left: 0.4rem;
}

.nav-menu a.nav-cta:hover {
  background: var(--color-accent-dark);
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  z-index: 110;
}

.nav-toggle span {
  display: block;
  width: 26px;
  height: 3px;
  border-radius: 3px;
  background: var(--color-text);
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* ============================ Sections ============================ */
.section {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--nav-height) + 3rem) 0 5rem;
}

.section--alt {
  background: var(--color-surface);
}

.section--deep {
  background: var(--color-surface-2);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--color-accent);
}

.lead {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--color-text);
  max-width: 60ch;
}

/* Split layout: text + image */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.split--reverse .split__media {
  order: -1;
}

.split__media {
  position: relative;
}

.split__media img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.media-badge {
  position: absolute;
  bottom: -18px;
  left: -18px;
  background: var(--color-accent);
  color: #fff;
  padding: 0.85rem 1.2rem;
  border-radius: 14px;
  font-weight: 800;
  font-family: var(--font-head);
  box-shadow: var(--shadow);
  line-height: 1.1;
}

.media-badge small {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  opacity: 0.9;
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.2rem;
  margin-top: 2rem;
}

.card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 1.6rem;
  transition: transform var(--transition), border-color var(--transition);
}

.card:hover {
  transform: translateY(-6px);
  border-color: var(--color-accent);
}

.card__icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: rgba(230, 57, 70, 0.15);
  color: var(--color-accent);
  display: grid;
  place-items: center;
  margin-bottom: 1rem;
}

.card__icon svg {
  width: 24px;
  height: 24px;
}

.card h3 {
  margin-bottom: 0.4rem;
}

.card p {
  margin: 0;
  font-size: 0.95rem;
}

/* Stat numbers */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.4rem;
  margin-top: 2.5rem;
}

.stat {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-top: 3px solid var(--color-water);
  border-radius: var(--radius);
  padding: 1.8rem 1.6rem;
}

.stat__num {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(2.2rem, 5vw, 3rem);
  color: #fff;
  line-height: 1;
}

.stat__num span {
  font-size: 1.1rem;
  color: var(--color-water);
}

.stat__label {
  margin: 0.6rem 0 0;
  font-size: 0.95rem;
}

/* Quote */
.quote {
  border-left: 4px solid var(--color-water);
  padding: 0.4rem 0 0.4rem 1.6rem;
  font-family: var(--font-head);
  font-size: clamp(1.3rem, 3vw, 1.9rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.3;
  max-width: 22ch;
}

.source-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.source-card {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.source-card img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  object-position: top;
}

.source-card span {
  display: block;
  padding: 0.7rem 0.9rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: #0f1620;
}

/* Two column compare (risks / advantages) */
.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 2rem;
}

.panel {
  border-radius: var(--radius);
  padding: 1.8rem;
  border: 1px solid var(--color-line);
}

.panel--risk {
  background: rgba(230, 57, 70, 0.08);
  border-color: rgba(230, 57, 70, 0.4);
}

.panel--win {
  background: rgba(42, 157, 143, 0.08);
  border-color: rgba(42, 157, 143, 0.4);
}

.panel h3 {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.panel ul {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
}

.panel li {
  position: relative;
  padding: 0.55rem 0 0.55rem 1.7rem;
  color: var(--color-muted);
  border-top: 1px solid var(--color-line);
}

.panel li::before {
  position: absolute;
  left: 0;
  top: 0.55rem;
  font-weight: 800;
}

.panel--risk li::before {
  content: "✕";
  color: var(--color-accent);
}

.panel--win li::before {
  content: "✓";
  color: var(--color-water);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.9rem 1.6rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform var(--transition), background var(--transition), border-color var(--transition);
}

.btn--primary {
  background: var(--color-accent);
  color: #fff;
}

.btn--primary:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
}

.btn--ghost {
  border-color: rgba(255, 255, 255, 0.35);
  color: #fff;
}

.btn--ghost:hover {
  border-color: #fff;
  transform: translateY(-2px);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.8rem;
}

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

.hero__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  background: #0f1620 url("../../poster.jpg") center / cover no-repeat;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(15, 22, 32, 0.6) 0%, rgba(15, 22, 32, 0.45) 40%, rgba(15, 22, 32, 0.85) 100%);
}

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

.hero__content h1 {
  color: #fff;
}

.hero__content .lead {
  color: #dfe7ee;
  margin-bottom: 0.5rem;
}

.hero__tag {
  display: inline-block;
  background: rgba(230, 57, 70, 0.2);
  border: 1px solid rgba(230, 57, 70, 0.5);
  color: #fff;
  padding: 0.45rem 1rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 1.4rem;
}

/* ============================ Down arrow CTA ============================ */
.scroll-cta {
  position: absolute;
  bottom: 1.8rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  color: var(--color-text);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.85;
  transition: opacity var(--transition), transform var(--transition);
}

.scroll-cta:hover,
.scroll-cta:focus-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(3px);
}

.scroll-cta__arrow {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 2px solid currentColor;
  display: grid;
  place-items: center;
  animation: bounce 1.8s infinite;
}

.scroll-cta__arrow svg {
  width: 20px;
  height: 20px;
}

.hero .scroll-cta {
  color: #fff;
}

@keyframes bounce {
  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(9px);
  }
  60% {
    transform: translateY(4px);
  }
}

/* ============================ Contact ============================ */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: start;
  margin-top: 2rem;
}

.contact-info p {
  max-width: 42ch;
}

.contact-list {
  list-style: none;
  margin: 1.8rem 0 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.contact-list li {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.contact-list .ci-icon {
  width: 44px;
  height: 44px;
  flex: 0 0 44px;
  border-radius: 12px;
  background: rgba(42, 157, 143, 0.15);
  color: var(--color-water);
  display: grid;
  place-items: center;
}

.contact-list .ci-icon svg {
  width: 22px;
  height: 22px;
}

.contact-list small {
  display: block;
  color: var(--color-muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.contact-list a,
.contact-list span.val {
  color: #fff;
  font-weight: 600;
}

.form {
  background: var(--color-surface-2);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 4vw, 2.4rem);
  box-shadow: var(--shadow);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.field {
  margin-bottom: 1.1rem;
}

.field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--color-text);
}

.field label .req {
  color: var(--color-accent);
}

.field input,
.field textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--color-line);
  background: var(--color-bg);
  color: var(--color-text);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--color-water);
  box-shadow: 0 0 0 3px rgba(42, 157, 143, 0.2);
}

.field textarea {
  resize: vertical;
  min-height: 130px;
}

.field .error-text {
  display: none;
  margin: 0.35rem 0 0;
  font-size: 0.8rem;
  color: var(--color-accent);
}

.field.invalid input,
.field.invalid textarea {
  border-color: var(--color-accent);
}

.field.invalid .error-text {
  display: block;
}

.form__status {
  margin-top: 1rem;
  padding: 0.9rem 1.1rem;
  border-radius: 12px;
  font-size: 0.95rem;
  font-weight: 600;
  display: none;
}

.form__status.show {
  display: block;
}

.form__status.success {
  background: rgba(42, 157, 143, 0.15);
  color: #7fe0d2;
  border: 1px solid rgba(42, 157, 143, 0.4);
}

.form__status.error {
  background: rgba(230, 57, 70, 0.12);
  color: #ff9aa3;
  border: 1px solid rgba(230, 57, 70, 0.4);
}

.form button[type="submit"] {
  width: 100%;
  justify-content: center;
  margin-top: 0.4rem;
}

/* ============================ Footer ============================ */
.footer {
  background: #0a0f16;
  padding: 2.5rem 0;
  text-align: center;
  border-top: 1px solid var(--color-line);
}

.footer p {
  margin: 0.25rem 0;
  font-size: 0.9rem;
}

.footer a {
  color: var(--color-water);
  font-weight: 600;
}

/* ============================ Scroll reveal ============================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.in {
  opacity: 1;
  transform: none;
}

/* ============================ Responsive ============================ */
@media (max-width: 900px) {
  .split,
  .contact-grid,
  .compare {
    grid-template-columns: 1fr;
  }

  .split--reverse .split__media {
    order: 0;
  }

  .split__media img {
    max-height: 360px;
  }

  .media-badge {
    left: 14px;
    bottom: 14px;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: min(82vw, 340px);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0.3rem;
    padding: calc(var(--nav-height) + 1rem) 1.4rem 2rem;
    background: var(--color-surface);
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.45);
    transform: translateX(100%);
    transition: transform var(--transition);
    overflow-y: auto;
  }

  .nav-menu.open {
    transform: translateX(0);
  }

  .nav-menu a {
    padding: 0.9rem 1rem;
    border-radius: 12px;
    font-size: 1.05rem;
  }

  .nav-menu a.nav-cta {
    margin-left: 0;
    margin-top: 0.5rem;
    text-align: center;
  }

  body.nav-open {
    overflow: hidden;
  }

  .nav-backdrop {
    position: fixed;
    inset: 0;
    z-index: 90;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition);
  }

  .nav-backdrop.show {
    opacity: 1;
    visibility: visible;
  }
}

@media (max-width: 560px) {
  body {
    font-size: 16px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .section {
    padding: calc(var(--nav-height) + 2rem) 0 4.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .scroll-cta__arrow {
    animation: none;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}