@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@700&display=swap');

/**
 * Klyondra - Natural Sports Nutrition
 * Main CSS file
 */

/* ======================================
   Table of Contents:
   1. CSS Variables
   2. Base & Typography
   3. Layout & Containers
   4. Header & Navigation
   5. Hero Section
   6. Principles Section
   7. Products Section
   8. Stories Section
   9. Meal Prep Section
   10. Benefits Section
   11. FAQ Section
   12. Subscribe Section
   13. Contact Section
   14. Footer
   15. Back to Top Button
   16. Success Page
   17. Standard Pages (cookies, privacy, terms)
   18. Buttons & Forms
   19. Utilities & Animations
   20. Media Queries
   ====================================== */

/* ======================================
   1. CSS Variables
   ====================================== */
:root {
  /* Colors */
  --color-background: #1F2A44;
  --color-accent: #32CD32;
  --color-text: #F5F5F5;
  --color-button: #00FF7F;
  --color-card: #293754;
  --color-input: #3A4865;
  --color-input-focus: #4A5875;
  --color-success: #4CAF50;
  --color-error: #F44336;
  --color-warning: #FFC107;
  
  /* Typography */
  --font-main: 'Poppins', sans-serif;
  --font-size-base: 1rem;
  --font-size-small: 0.875rem;
  --font-size-large: 1.125rem;
  --font-size-xl: 1.5rem;
  --font-size-xxl: 2rem;
  --font-size-xxxl: 2.5rem;
  --font-weight-light: 300;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;
  --spacing-xxxl: 4rem;
  
  /* Borders & Shadows */
  --border-radius-sm: 0.25rem;
  --border-radius-md: 0.5rem;
  --border-radius-lg: 1rem;
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.2);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Layout */
  --header-height: 5rem;
  --container-width-sm: 540px;
  --container-width-md: 720px;
  --container-width-lg: 960px;
  --container-width-xl: 1140px;
  
  /* Z-index */
  --z-index-back: -1;
  --z-index-normal: 1;
  --z-index-overlay: 10;
  --z-index-dropdown: 20;
  --z-index-fixed: 30;
  --z-index-modal: 40;
  --z-index-popover: 50;
  --z-index-tooltip: 60;
  
  /* Breakpoints (in px) */
  --breakpoint-xs: 0;
  --breakpoint-sm: 576px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 992px;
  --breakpoint-xl: 1200px;
}

/* ======================================
   2. Base & Typography
   ====================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-regular);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: var(--font-size-xxxl);
}

h2 {
  font-size: var(--font-size-xxl);
}

h3 {
  font-size: var(--font-size-xl);
}

p {
  margin-bottom: var(--spacing-md);
}

a {
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-accent);
}

ul, ol {
  list-style-position: inside;
  margin-bottom: var(--spacing-md);
}

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

/* ======================================
   3. Layout & Containers
   ====================================== */
.section-title {
  text-align: center;
  margin-bottom: var(--spacing-xxl);
  position: relative;
  padding-bottom: var(--spacing-md);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 5rem;
  height: 0.25rem;
  background-color: var(--color-accent);
  border-radius: var(--border-radius-sm);
}

section {
  padding: var(--spacing-xxxl) 0;
}

.header__container,
.footer__container,
.principles__container,
.products__container,
.stories__container,
.meal-prep__container,
.benefits__container,
.faq__container,
.subscribe__container,
.contact__container,
.success__container,
.page__container {
  width: 90%;
  max-width: var(--container-width-xl);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* ======================================
   4. Header & Navigation
   ====================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(31, 42, 68, 0.95);
  z-index: var(--z-index-fixed);
  transition: all var(--transition-medium);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
}

.header__container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: var(--header-height);
}

.header__logo {
  display: block;
  height: 2.5rem;
}

.header__logo img {
  height: 100%;
}

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

.header__menu {
  display: flex;
  list-style: none;
  margin: 0;
}

.header__link {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  font-weight: var(--font-weight-medium);
  transition: color var(--transition-fast);
}

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

.header__link--accent {
  background-color: var(--color-accent);
  color: var(--color-background);
  border-radius: var(--border-radius-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-weight: var(--font-weight-semibold);
}

.header__link--accent:hover {
  background-color: var(--color-button);
  color: var(--color-background);
}

.header__menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 2rem;
  height: 1.5rem;
  position: relative;
  z-index: var(--z-index-dropdown);
}

.header__menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-text);
  position: absolute;
  left: 0;
  transition: all var(--transition-medium);
}

.header__menu-toggle span:nth-child(1) {
  top: 0;
}

.header__menu-toggle span:nth-child(2) {
  top: 50%;
  transform: translateY(-50%);
}

.header__menu-toggle span:nth-child(3) {
  bottom: 0;
}

.header__menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg);
  top: 50%;
}

.header__menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.header__menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg);
  bottom: 50%;
}

.header--scrolled {
  box-shadow: var(--shadow-md);
  height: 4rem;
}

.header--hidden {
  transform: translateY(-100%);
}

/* ======================================
   5. Hero Section
   ====================================== */
.hero {
  height: 100vh;
  min-height: 600px;
  background-image: url('../images/img08.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: var(--header-height);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(31, 42, 68, 0.7);
  z-index: 1;
}

.hero__content {
  max-width: 800px;
  padding: var(--spacing-xxl);
  opacity: 0;
  transform: translateY(30px);
  transition: all var(--transition-slow);
  position: relative;
  z-index: 2;
}

.hero__content.animate {
  opacity: 1;
  transform: translateY(0);
}

.hero__title {
  font-size: 3.5rem;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero__subtitle {
  font-size: var(--font-size-large);
  margin-bottom: var(--spacing-xl);
  color: var(--color-text);
  opacity: 0.9;
}

.hero__cta {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
}

/* ======================================
   6. Principles Section
   ====================================== */
.principles {
  padding-top: var(--spacing-xxxl);
}

.principles__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: var(--spacing-xl);
}

.principles__card {
  background-color: var(--color-card);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
  text-align: center;
  transition: transform var(--transition-medium);
  opacity: 0;
  transform: translateY(30px);
  transition: all var(--transition-medium) 0.1s;
}

.principles__card:nth-child(2) {
  transition-delay: 0.2s;
}

.principles__card:nth-child(3) {
  transition-delay: 0.3s;
}

.principles__card:nth-child(4) {
  transition-delay: 0.4s;
}

.principles__card.animate {
  opacity: 1;
  transform: translateY(0);
}

.principles__card:hover {
  transform: translateY(-10px);
}

.principles__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 4rem;
  height: 4rem;
  margin: 0 auto var(--spacing-md);
  background-color: var(--color-accent);
  color: var(--color-background);
  border-radius: 50%;
  font-size: 1.5rem;
}

.principles__title {
  margin-bottom: var(--spacing-sm);
}

.principles__text {
  color: var(--color-text);
  opacity: 0.9;
}

/* ======================================
   7. Products Section
   ====================================== */
.products__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.products__card {
  background-color: var(--color-card);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-medium);
  opacity: 0;
  transform: translateY(30px);
  transition: all var(--transition-medium) 0.1s;
}

.products__card:nth-child(2) {
  transition-delay: 0.2s;
}

.products__card:nth-child(3) {
  transition-delay: 0.3s;
}

.products__card.animate {
  opacity: 1;
  transform: translateY(0);
}

.products__card:hover {
  transform: translateY(-10px);
}

.products__image {
  height: 200px;
  overflow: hidden;
}

.products__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-medium);
}

.products__card:hover .products__image img {
  transform: scale(1.1);
}

.products__content {
  padding: var(--spacing-xl);
}

.products__title {
  margin-bottom: var(--spacing-sm);
}

.products__description {
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
  opacity: 0.9;
}

.products__features {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.products__tag {
  padding: var(--spacing-xs) var(--spacing-sm);
  background-color: var(--color-accent);
  color: var(--color-background);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-medium);
}

/* ======================================
   8. Stories Section
   ====================================== */
.stories__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.stories__card {
  background-color: var(--color-card);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  opacity: 0;
  transform: translateY(30px);
  transition: all var(--transition-medium) 0.1s;
}

.stories__card:nth-child(2) {
  transition-delay: 0.2s;
}

.stories__card:nth-child(3) {
  transition-delay: 0.3s;
}

.stories__card.animate {
  opacity: 1;
  transform: translateY(0);
}

.stories__image {
  height: 250px;
  overflow: hidden;
}

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

.stories__content {
  padding: var(--spacing-xl);
}

.stories__name {
  margin-bottom: var(--spacing-xs);
}

.stories__sport {
  font-size: var(--font-size-small);
  color: var(--color-accent);
  margin-bottom: var(--spacing-md);
}

.stories__quote {
  position: relative;
  padding-left: var(--spacing-md);
  border-left: 3px solid var(--color-accent);
  font-style: italic;
  color: var(--color-text);
  opacity: 0.9;
}

/* ======================================
   9. Meal Prep Section
   ====================================== */
.meal-prep {
  background-color: var(--color-card);
  padding: var(--spacing-xxxl) 0;
}

.meal-prep__container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xxl);
  align-items: center;
}

.meal-prep__content {
  opacity: 0;
  transform: translateX(-30px);
  transition: all var(--transition-medium);
}

.meal-prep__content.animate {
  opacity: 1;
  transform: translateX(0);
}

.meal-prep__text {
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-large);
}

.meal-prep__list {
  list-style: none;
  margin-bottom: var(--spacing-xl);
}

.meal-prep__item {
  display: flex;
  align-items: flex-start;
  margin-bottom: var(--spacing-md);
}

.meal-prep__item i {
  color: var(--color-accent);
  margin-right: var(--spacing-sm);
  margin-top: 0.3rem;
}

.meal-prep__image {
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transform: translateX(30px);
  transition: all var(--transition-medium);
}

.meal-prep__image.animate {
  opacity: 1;
  transform: translateX(0);
}

.meal-prep__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ======================================
   10. Benefits Section
   ====================================== */
.benefits__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.benefits__card {
  background-color: var(--color-card);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
  opacity: 0;
  transform: translateY(30px);
  transition: all var(--transition-medium) 0.1s;
}

.benefits__card:nth-child(2) {
  transition-delay: 0.1s;
}

.benefits__card:nth-child(3) {
  transition-delay: 0.2s;
}

.benefits__card:nth-child(4) {
  transition-delay: 0.3s;
}

.benefits__card:nth-child(5) {
  transition-delay: 0.4s;
}

.benefits__card:nth-child(6) {
  transition-delay: 0.5s;
}

.benefits__card.animate {
  opacity: 1;
  transform: translateY(0);
}

.benefits__card:hover {
  transform: translateY(-5px);
}

.benefits__title {
  color: var(--color-accent);
  margin-bottom: var(--spacing-sm);
}

.benefits__text {
  color: var(--color-text);
  opacity: 0.9;
}

/* ======================================
   11. FAQ Section
   ====================================== */
.faq {
  background-color: var(--color-card);
  padding: var(--spacing-xxxl) 0;
}

.faq__accordion {
  max-width: 800px;
  margin: 0 auto;
}

.faq__item {
  background-color: var(--color-background);
  border-radius: var(--border-radius-md);
  margin-bottom: var(--spacing-md);
  overflow: hidden;
}

.faq__question {
  width: 100%;
  background-color: transparent;
  border: none;
  padding: var(--spacing-lg);
  text-align: left;
  color: var(--color-text);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-large);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq__question i {
  transition: transform var(--transition-fast);
}

.faq__item.active .faq__question i {
  transform: rotate(-180deg);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-medium);
  padding: 0 var(--spacing-lg);
}

.faq__item.active .faq__answer {
  padding-bottom: var(--spacing-lg);
}

/* ======================================
   12. Subscribe Section
   ====================================== */
.subscribe {
  text-align: center;
  background-color: var(--color-background);
  padding: var(--spacing-xxxl) 0;
}

.subscribe__container {
  max-width: 600px;
}

.subscribe__text {
  margin-bottom: var(--spacing-xl);
  font-size: var(--font-size-large);
}

.subscribe__form {
  display: flex;
  gap: var(--spacing-md);
  max-width: 500px;
  margin: 0 auto;
}

.subscribe__input {
  flex: 1;
  padding: var(--spacing-md) var(--spacing-lg);
  border: none;
  border-radius: var(--border-radius-md);
  background-color: var(--color-input);
  color: var(--color-text);
  font-family: var(--font-main);
  font-size: var(--font-size-base);
}

.subscribe__input:focus {
  outline: none;
  background-color: var(--color-input-focus);
}

/* ======================================
   13. Contact Section
   ====================================== */
.contact__container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xxl);
  align-items: center;
}

.contact__info {
  opacity: 0;
  transform: translateX(-30px);
  transition: all var(--transition-medium);
}

.contact__info.animate {
  opacity: 1;
  transform: translateX(0);
}

.contact__text {
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-large);
}

.contact__details {
  margin-top: var(--spacing-xl);
}

.contact__item {
  display: flex;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.contact__item i {
  color: var(--color-accent);
  font-size: 1.25rem;
  margin-right: var(--spacing-md);
  width: 1.5rem;
  text-align: center;
}

.contact__form-container {
  opacity: 0;
  transform: translateX(30px);
  transition: all var(--transition-medium);
}

.contact__form-container.animate {
  opacity: 1;
  transform: translateX(0);
}

.contact__form {
  background-color: var(--color-card);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
}

.contact__form-group {
  margin-bottom: var(--spacing-md);
}

.contact__label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: var(--font-weight-medium);
}

.contact__input,
.contact__textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: none;
  border-radius: var(--border-radius-sm);
  background-color: var(--color-input);
  color: var(--color-text);
  font-family: var(--font-main);
  font-size: var(--font-size-base);
  resize: vertical;
}

.contact__input:focus,
.contact__textarea:focus {
  outline: none;
  background-color: var(--color-input-focus);
}

.contact__submit {
  margin-top: var(--spacing-md);
  width: 100%;
}

/* ======================================
   14. Footer
   ====================================== */
.footer {
  background-color: var(--color-background);
  padding: var(--spacing-xxl) 0;
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--color-accent), transparent);
}

.footer__container {
  text-align: center;
}

.footer__logo {
  display: inline-block;
  margin-bottom: var(--spacing-xl);
}

.footer__logo img {
  height: 2.5rem;
}

.footer__nav {
  margin-bottom: var(--spacing-xl);
}

.footer__menu {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-md);
  list-style: none;
  margin: 0;
}

.footer__link {
  font-size: var(--font-size-small);
  opacity: 0.8;
  transition: opacity var(--transition-fast);
}

.footer__link:hover {
  opacity: 1;
}

.footer__tips {
  max-width: 600px;
  margin: 0 auto var(--spacing-xl);
}

.footer__tips-title {
  margin-bottom: var(--spacing-md);
  color: var(--color-accent);
}

.footer__tips-list {
  list-style: none;
  margin: 0;
}

.footer__tip {
  margin-bottom: var(--spacing-sm);
  opacity: 0.8;
}

.footer__copyright {
  opacity: 0.6;
  font-size: var(--font-size-small);
}

/* ======================================
   15. Back to Top Button
   ====================================== */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 3rem;
  height: 3rem;
  background-color: var(--color-accent);
  color: var(--color-background);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  z-index: var(--z-index-fixed);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-medium);
  box-shadow: var(--shadow-md);
}

.back-to-top:hover {
  background-color: var(--color-button);
  color: var(--color-background);
  transform: translateY(-5px);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* ======================================
   16. Success Page
   ====================================== */
.success {
  min-height: calc(100vh - var(--header-height));
  padding: calc(2*var(--spacing-xxxl)) 0 var(--spacing-xxxl);
  display: flex;
  align-items: center;
}

.success__container {
  text-align: center;
  max-width: 800px;
}

.success__icon {
  font-size: 4rem;
  color: var(--color-success);
  margin-bottom: var(--spacing-xl);
  animation: pulse 2s infinite;
}

.success__title {
  margin-bottom: var(--spacing-md);
}

.success__text {
  font-size: var(--font-size-large);
  margin-bottom: var(--spacing-md);
}

.success__details {
  margin-bottom: var(--spacing-xl);
  opacity: 0.9;
}

.success__actions {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xxl);
}

.success__tips {
  margin-top: var(--spacing-xxl);
}

.success__tips-title {
  margin-bottom: var(--spacing-md);
}

.success__tips-text {
  margin-bottom: var(--spacing-lg);
}

.success__tips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--spacing-lg);
}

.success__tip {
  padding: var(--spacing-lg);
  background-color: var(--color-card);
  border-radius: var(--border-radius-md);
  text-align: center;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.5s forwards;
}

.success__tip:nth-child(2) {
  animation-delay: 0.2s;
}

.success__tip:nth-child(3) {
  animation-delay: 0.4s;
}

.success__tip-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  margin: 0 auto var(--spacing-md);
  background-color: var(--color-accent);
  color: var(--color-background);
  border-radius: 50%;
  font-size: 1.25rem;
}

.success__tip-title {
  margin-bottom: var(--spacing-sm);
  color: var(--color-accent);
}

.success__tip-text {
  opacity: 0.9;
}

/* ======================================
   17. Standard Pages (cookies, privacy, terms)
   ====================================== */
.page {
  padding-top: calc(var(--header-height) + var(--spacing-xxl));
  padding-bottom: var(--spacing-xxxl);
}

.page__container {
  max-width: 900px;
}

.page__title {
  margin-bottom: var(--spacing-xl);
  text-align: center;
}

.page__content {
  background-color: var(--color-card);
  padding: var(--spacing-xxl);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
}

.page__subtitle {
  color: var(--color-accent);
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

.page__subtitle-small {
  font-size: var(--font-size-large);
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
}

.page__update {
  margin-top: var(--spacing-xl);
  font-style: italic;
  opacity: 0.7;
  text-align: right;
}

/* ======================================
   18. Buttons & Forms
   ====================================== */
.btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--border-radius-md);
  font-weight: var(--font-weight-semibold);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  font-family: var(--font-main);
  font-size: var(--font-size-base);
}

.btn--primary {
  background-color: var(--color-button);
  color: var(--color-background);
}

.btn--primary:hover {
  background-color: var(--color-accent);
  color: var(--color-background);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.btn--secondary {
  background-color: transparent;
  color: var(--color-text);
  border: 2px solid var(--color-accent);
}

.btn--secondary:hover {
  background-color: var(--color-accent);
  color: var(--color-background);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.error {
  border: 1px solid var(--color-error) !important;
  box-shadow: 0 0 0 2px rgba(244, 67, 54, 0.2);
}

/* ======================================
   19. Utilities & Animations
   ====================================== */
@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
  100% {
    transform: scale(1);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.menu-open {
  overflow: hidden;
}

/* ======================================
   20. Media Queries
   ====================================== */
@media (max-width: 992px) {
  :root {
    --font-size-xxxl: 2.25rem;
    --font-size-xxl: 1.75rem;
    --font-size-xl: 1.25rem;
  }

  .hero__title {
    font-size: 2.5rem;
  }

  .contact__container,
  .meal-prep__container {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

  .contact__form-container,
  .meal-prep__image {
    order: -1;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 4rem;
  }

  .header__menu {
    position: fixed;
    top: 0;
    right: -100%;
    height: 100vh;
    width: 80%;
    max-width: 400px;
    background-color: var(--color-background);
    flex-direction: column;
    align-items: flex-start;
    padding: calc(var(--header-height) + var(--spacing-lg)) var(--spacing-xl) var(--spacing-xl);
    transition: right var(--transition-medium);
    z-index: var(--z-index-overlay);
    box-shadow: var(--shadow-lg);
  }

  .header__menu.active {
    right: 0;
  }

  .header__link {
    padding: var(--spacing-md) 0;
  }

  .header__menu-toggle {
    display: block;
  }

  .hero {
    background-attachment: scroll;
  }

  .hero__cta {
    flex-direction: column;
  }

  .subscribe__form {
    flex-direction: column;
  }

  .success__actions {
    flex-direction: column;
  }
}

@media (max-width: 576px) {
  :root {
    --font-size-xxxl: 2rem;
    --font-size-xxl: 1.5rem;
    --font-size-xl: 1.25rem;
    --spacing-xxxl: 3rem;
    --spacing-xxl: 2rem;
  }

  .section-title {
    margin-bottom: var(--spacing-xl);
  }

  .hero__title {
    font-size: 2rem;
  }

  .page__content {
    padding: var(--spacing-lg);
  }
}