/* istiyom.com � brand tokens */
:root {
  --green-dark: #1a5c38;
  --green-mid: #2d7a4f;
  --green-light: #e8f5ee;
  --yellow: #f5c518;
  --yellow-hover: #e0b010;
  --cream: #fafbf7;
  --white: #ffffff;
  --text: #1e2a24;
  --text-muted: #5a6b62;
  --shadow: 0 8px 32px rgba(26, 92, 56, 0.12);
  --shadow-sm: 0 4px 16px rgba(26, 92, 56, 0.08);
  --radius: 20px;
  --radius-sm: 12px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: "Nunito", system-ui, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--cream);
  line-height: 1.65;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

.container {
  width: min(1140px, 92%);
  margin-inline: auto;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(26, 92, 56, 0.08);
  transition: var(--transition);
}

.header.scrolled {
  box-shadow: var(--shadow-sm);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0;
  gap: 1rem;
}

.header__logo img {
  height: 60px;
  width: auto;
}

.nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav a {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-muted);
  transition: color var(--transition);
  position: relative;
}

.nav a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--yellow);
  border-radius: 2px;
  transition: width var(--transition);
}

.nav a:hover,
.nav a.active {
  color: var(--green-dark);
}

.nav a:hover::after,
.nav a.active::after {
  width: 100%;
}

.nav__cta {
  background: var(--yellow);
  color: var(--green-dark) !important;
  padding: 0.55rem 1.25rem;
  border-radius: 999px;
  font-weight: 700;
}

.nav__cta::after {
  display: none !important;
}

.nav__cta:hover {
  background: var(--yellow-hover);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2.5px;
  background: var(--green-dark);
  border-radius: 2px;
  transition: var(--transition);
}

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: 7rem 0 4rem;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background: var(--cream);
  z-index: 0;
  overflow: hidden;
}

.hero__bg::before,
.hero__bg::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.hero__bg::before {
  width: 75%;
  height: 65%;
  top: -8%;
  right: -8%;
  background: radial-gradient(ellipse, rgba(245, 197, 24, 0.28) 0%, transparent 68%);
  animation: hero-glow-yellow 11s ease-in-out infinite;
}

.hero__bg::after {
  width: 60%;
  height: 55%;
  bottom: -6%;
  left: -12%;
  background: radial-gradient(ellipse, rgba(26, 92, 56, 0.2) 0%, transparent 65%);
  animation: hero-glow-green 13s ease-in-out infinite;
}

.hero__blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.48;
  z-index: 0;
  will-change: transform;
}

.hero__blob--1 {
  width: 400px;
  height: 400px;
  background: var(--green-mid);
  top: -100px;
  right: -80px;
  animation: blob-drift-green 10s ease-in-out infinite;
}

.hero__blob--2 {
  width: 300px;
  height: 300px;
  background: var(--yellow);
  bottom: 10%;
  left: -60px;
  animation: blob-drift-yellow 8s ease-in-out infinite;
}

@keyframes hero-glow-yellow {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(-3%, 18%) scale(1.12);
  }
}

@keyframes hero-glow-green {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(4%, -16%) scale(1.14);
  }
}

@keyframes blob-drift-green {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(30px, 110px) scale(1.08);
  }
}

@keyframes blob-drift-yellow {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(-20px, -100px) scale(1.12);
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero__bg::before,
  .hero__bg::after,
  .hero__blob--1,
  .hero__blob--2 {
    animation: none;
  }
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--green-light);
  color: var(--green-dark);
  padding: 0.4rem 1rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.hero__badge::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--yellow);
  border-radius: 50%;
}

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--green-dark);
  margin-bottom: 1rem;
}

.hero h1 span {
  color: var(--yellow);
  -webkit-text-stroke: 1.5px var(--green-dark);
}

.hero__subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 480px;
  margin-bottom: 2rem;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  border-radius: 999px;
  font-family: var(--font);
  font-weight: 700;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.btn--primary {
  background: var(--yellow);
  color: var(--green-dark);
  box-shadow: 0 4px 20px rgba(245, 197, 24, 0.4);
}

.btn--primary:hover {
  background: var(--yellow-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(245, 197, 24, 0.5);
}

.btn--outline {
  background: transparent;
  color: var(--green-dark);
  border: 2px solid var(--green-dark);
}

.btn--outline:hover {
  background: var(--green-dark);
  color: var(--white);
}

.hero__visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero__card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  max-width: 420px;
  width: 100%;
  position: relative;
}

.hero__card-logo {
  width: 200px;
  margin: 0 auto 1.5rem;
}

.hero__card-tagline {
  text-align: center;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--green-dark);
  margin-bottom: 1.5rem;
}

.hero__features {
  display: grid;
  gap: 0.75rem;
}

.hero__feature {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--green-light);
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--green-dark);
}

.hero__feature-icon {
  width: 36px;
  height: 36px;
  background: var(--yellow);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

/* Section common */
.section {
  padding: 5.5rem 0;
}

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

.section__header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 3.5rem;
}

.section__label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green-mid);
  margin-bottom: 0.75rem;
}

.section__title {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 800;
  color: var(--green-dark);
  margin-bottom: 1rem;
  line-height: 1.2;
}

.section__desc {
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* About */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.about__text p {
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.about__text p:last-child {
  margin-bottom: 0;
}

.values {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.value-card {
  background: var(--green-light);
  border-radius: var(--radius-sm);
  padding: 1.5rem;
  transition: var(--transition);
}

.value-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-sm);
}

.value-card__icon {
  font-size: 1.75rem;
  margin-bottom: 0.75rem;
}

.value-card h3 {
  font-size: 1rem;
  font-weight: 800;
  color: var(--green-dark);
  margin-bottom: 0.4rem;
}

.value-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Products */
.products__showcase {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.product-showcase {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 0;
  align-items: stretch;
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(26, 92, 56, 0.06);
  transition: var(--transition);
}

.product-showcase:hover {
  box-shadow: var(--shadow);
}

.product-showcase--reverse .product-showcase__media {
  order: 2;
}

.product-showcase--reverse .product-showcase__body {
  order: 1;
}

.product-showcase__media {
  position: relative;
  background: #f5f0e8;
  min-height: 280px;
}

.product-showcase__media img {
  width: 100%;
  height: 100%;
  min-height: 280px;
  object-fit: cover;
  object-position: center;
  display: block;
}

.product-showcase__weight {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--green-dark);
  color: var(--white);
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
  z-index: 1;
  box-shadow: var(--shadow-sm);
}

.product-showcase__body {
  padding: 1.75rem 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.product-showcase__body h3,
.product-card__body h3 {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--green-dark);
  margin-bottom: 0.5rem;
}

.product-card__ingredients {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.product-card__nutrition {
  background: var(--green-light);
  border-radius: var(--radius-sm);
  padding: 1rem;
  margin-bottom: 1.25rem;
}

.product-card__nutrition h4 {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--green-mid);
  margin-bottom: 0.75rem;
}

.nutrition-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}

.nutrition-item {
  text-align: center;
  padding: 0.5rem;
  background: var(--white);
  border-radius: 8px;
}

.nutrition-item__value {
  font-weight: 800;
  font-size: 0.95rem;
  color: var(--green-dark);
}

.nutrition-item__label {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.product-card__usage {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.55;
}

.product-card__usage strong {
  color: var(--green-dark);
}

/* Contact */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
  align-items: start;
}

.contact__info {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.contact-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.25rem;
  background: var(--green-light);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.contact-item:hover {
  background: #d4eddf;
}

.contact-item__icon {
  width: 44px;
  height: 44px;
  background: var(--yellow);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-item h4 {
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--green-mid);
  margin-bottom: 0.25rem;
}

.contact-item p,
.contact-item a {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--green-dark);
}

.contact-item a:hover {
  text-decoration: underline;
}

.contact-form {
  background: var(--white);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
}

.contact-form h3 {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--green-dark);
  margin-bottom: 0.5rem;
}

.contact-form > p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1.1rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--green-dark);
  margin-bottom: 0.4rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 2px solid #e0ebe4;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 0.95rem;
  color: var(--text);
  background: var(--cream);
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--green-mid);
  background: var(--white);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

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

.form-alert {
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 1rem;
  display: none;
}

.form-alert--success {
  background: #d4edda;
  color: #155724;
  display: block;
}

.form-alert--error {
  background: #f8d7da;
  color: #721c24;
  display: block;
}

/* Footer */
.footer {
  background: var(--green-dark);
  color: rgba(255, 255, 255, 0.85);
  padding: 3rem 0 1.5rem;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}

.footer__brand img {
  height: 56px;
  margin-bottom: 1rem;
  filter: brightness(1.05);
}

.footer__brand p {
  font-size: 0.9rem;
  line-height: 1.6;
  opacity: 0.85;
}

.footer h4 {
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--yellow);
  margin-bottom: 1rem;
}

.footer ul li {
  margin-bottom: 0.5rem;
}

.footer a {
  font-size: 0.9rem;
  opacity: 0.85;
  transition: opacity var(--transition);
}

.footer a:hover {
  opacity: 1;
  color: var(--yellow);
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.82rem;
  opacity: 0.7;
}

/* Responsive */
@media (max-width: 900px) {
  .hero__grid,
  .about__grid,
  .contact__grid,
  .footer__grid {
    grid-template-columns: 1fr;
  }

  .product-showcase,
  .product-showcase--reverse {
    grid-template-columns: 1fr;
  }

  .product-showcase--reverse .product-showcase__media,
  .product-showcase--reverse .product-showcase__body {
    order: unset;
  }

  .product-showcase__media img {
    min-height: 220px;
    max-height: 360px;
    object-fit: contain;
    background: #f5f0e8;
  }

  .hero__visual {
    order: -1;
  }

  .hero__card {
    max-width: 340px;
  }

  .values {
    grid-template-columns: 1fr 1fr;
  }
}

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

  .nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 1.5rem;
    gap: 1.25rem;
    box-shadow: var(--shadow);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
  }

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

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

  .nutrition-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer__grid {
    gap: 1.5rem;
  }

  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .values {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 6rem;
  }
}