/* 
* Quantivora - Main Stylesheet
* Website: quantivora.shop
* Description: Eco-friendly herbal products for sustainable lifestyle
*/

/* =============================================
   CSS Variables
============================================= */
:root {
    /* Colors */
    --color-background: #F0F5F1;
    --color-accent: #91C788;
    --color-accent-dark: #7ab171;
    --color-accent-light: #a6d49e;
    --color-text: #3A5A40;
    --color-text-light: #5c7d63;
    --color-button: #CFE1B9;
    --color-button-hover: #bfd1a8;
    --color-white: #ffffff;
    --color-black: #212121;
    --color-gray-light: #f5f5f5;
    --color-gray: #e0e0e0;
    --color-gray-dark: #9e9e9e;
    --color-error: #e53935;
    --color-success: #43a047;
    
    /* Typography */
    --font-primary: 'Gentium Book Plus', serif;
    --font-secondary: 'Karla', sans-serif;
    --font-size-base: 1rem;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-md: 1.125rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 1.875rem;
    --font-size-3xl: 2.25rem;
    --font-size-4xl: 3rem;
    --line-height-tight: 1.1;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.8;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-bold: 700;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 2.5rem;
    --spacing-3xl: 3rem;
    --spacing-4xl: 4rem;
    --spacing-5xl: 5rem;
    
    /* Borders */
    --border-radius-sm: 0.25rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 1rem;
    --border-radius-xl: 1.5rem;
    --border-radius-full: 9999px;
    --border-width-thin: 1px;
    --border-width-thick: 2px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.05), 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-focus: 0 0 0 3px rgba(145, 199, 136, 0.4);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
    
    /* Z-index */
    --z-index-negative: -1;
    --z-index-base: 1;
    --z-index-dropdown: 10;
    --z-index-sticky: 20;
    --z-index-fixed: 30;
    --z-index-modal: 40;
    --z-index-popover: 50;
    --z-index-tooltip: 60;
    
    /* Container */
    --container-max-width: 1200px;
    --container-padding: var(--spacing-md);
    
    /* Breakpoints (for reference, used in media queries) */
    --breakpoint-sm: 576px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 992px;
    --breakpoint-xl: 1200px;
}

/* Dark mode colors */
@media (prefers-color-scheme: dark) {
    :root {
        --color-background: #1E2A23;
        --color-accent: #91C788;
        --color-accent-dark: #7ab171;
        --color-accent-light: #a6d49e;
        --color-text: #E8F0E6;
        --color-text-light: #C5D1C2;
        --color-button: #3A5A40;
        --color-button-hover: #4B6D52;
        --color-white: #1E2A23;
        --color-black: #E8F0E6;
        --color-gray-light: #2A3830;
        --color-gray: #384940;
        --color-gray-dark: #556B5F;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

.reduced-motion *, .reduced-motion *::before, .reduced-motion *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
}

/* =============================================
   Base Styles
============================================= */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    background-color: var(--color-background);
    color: var(--color-text);
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover, a:focus {
    color: var(--color-accent);
    text-decoration: underline;
}

a:focus-visible {
    outline: none;
    box-shadow: var(--shadow-focus);
}

ul, ol {
    list-style-position: inside;
}

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
}

/* =============================================
   Accessibility
============================================= */
.sr-only {
    border: 0;
    clip: rect(0, 0, 0, 0);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    white-space: nowrap;
    width: 1px;
}

.skip-link {
    background-color: var(--color-accent);
    color: var(--color-white);
    font-family: var(--font-secondary);
    font-weight: var(--font-weight-bold);
    left: 0.5rem;
    padding: var(--spacing-md) var(--spacing-lg);
    position: absolute;
    top: 0.5rem;
    transform: translateY(-200%);
    transition: transform var(--transition-fast);
    z-index: var(--z-index-tooltip);
}

.skip-link:focus {
    transform: translateY(0);
}

/* Focus outline for keyboard users */
:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* =============================================
   Utility Classes
============================================= */
.container {
    margin-left: auto;
    margin-right: auto;
    max-width: var(--container-max-width);
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
    width: 100%;
}

.section-title {
    color: var(--color-text);
    font-family: var(--font-primary);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-xl);
    position: relative;
    text-align: center;
}

.section-title::after {
    background-color: var(--color-accent);
    bottom: -0.5rem;
    content: '';
    display: block;
    height: 3px;
    left: 50%;
    position: absolute;
    transform: translateX(-50%);
    width: 4rem;
}

@media (min-width: 768px) {
    .section-title {
        font-size: var(--font-size-3xl);
        margin-bottom: var(--spacing-2xl);
    }
}

/* Button Styles */
.button {
    align-items: center;
    border: none;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    display: inline-flex;
    font-family: var(--font-secondary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-xl);
    text-align: center;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.button:hover, .button:focus {
    text-decoration: none;
}

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

.button--primary:hover, .button--primary:focus {
    background-color: var(--color-accent-dark);
    color: var(--color-white);
}

.button--secondary {
    background-color: var(--color-button);
    color: var(--color-text);
}

.button--secondary:hover, .button--secondary:focus {
    background-color: var(--color-button-hover);
    color: var(--color-text);
}

/* =============================================
   Header Styles
============================================= */
.header {
    background-color: var(--color-background);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    width: 100%;
    z-index: var(--z-index-sticky);
}

.header__container {
    align-items: center;
    display: flex;
    justify-content: space-between;
    margin-left: auto;
    margin-right: auto;
    max-width: var(--container-max-width);
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

.header__logo {
    display: block;
    max-width: 160px;
}

.header__logo img {
    height: auto;
    width: 100%;
}

.header__nav {
    position: relative;
}

.header__nav-toggle {
    align-items: center;
    background: none;
    border: none;
    color: var(--color-text);
    cursor: pointer;
    display: flex;
    height: 44px;
    justify-content: center;
    padding: 0;
    width: 44px;
}

.header__nav-icon {
    background-color: var(--color-text);
    height: 2px;
    position: relative;
    transition: background-color var(--transition-fast);
    width: 24px;
}

.header__nav-icon::before,
.header__nav-icon::after {
    background-color: var(--color-text);
    content: '';
    height: 2px;
    left: 0;
    position: absolute;
    transition: transform var(--transition-fast);
    width: 24px;
}

.header__nav-icon::before {
    top: -8px;
}

.header__nav-icon::after {
    bottom: -8px;
}

.header__nav-toggle[aria-expanded="true"] .header__nav-icon {
    background-color: transparent;
}

.header__nav-toggle[aria-expanded="true"] .header__nav-icon::before {
    transform: translateY(8px) rotate(45deg);
}

.header__nav-toggle[aria-expanded="true"] .header__nav-icon::after {
    transform: translateY(-8px) rotate(-45deg);
}

.header__menu {
    background-color: var(--color-background);
    box-shadow: var(--shadow-lg);
    display: none;
    left: 0;
    list-style: none;
    margin: 0;
    padding: var(--spacing-md);
    position: absolute;
    right: 0;
    top: 100%;
    z-index: var(--z-index-dropdown);
}

.header__menu--active {
    display: block;
}

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

.header__menu-item:last-child {
    margin-bottom: 0;
}

.header__menu-link {
    color: var(--color-text);
    display: block;
    font-family: var(--font-secondary);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-medium);
    padding: var(--spacing-sm) 0;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.header__menu-link:hover,
.header__menu-link:focus {
    color: var(--color-accent);
    text-decoration: none;
}

@media (min-width: 768px) {
    .header__logo {
        max-width: 180px;
    }
    
    .header__nav-toggle {
        display: none;
    }
    
    .header__menu {
        background-color: transparent;
        box-shadow: none;
        display: flex;
        position: static;
        padding: 0;
    }
    
    .header__menu-item {
        margin-bottom: 0;
        margin-left: var(--spacing-lg);
    }
    
    .header__menu-link {
        font-size: var(--font-size-base);
        padding: var(--spacing-xs) 0;
    }
}

/* =============================================
   Hero Section
============================================= */
.hero {
    background-color: var(--color-background);
    overflow: hidden;
    padding: var(--spacing-4xl) 0;
    position: relative;
}

.hero::before {
    background-color: var(--color-accent-light);
    border-radius: 50%;
    content: '';
    height: 30rem;
    opacity: 0.1;
    position: absolute;
    right: -15rem;
    top: -15rem;
    width: 30rem;
    z-index: var(--z-index-negative);
}

.hero::after {
    background-color: var(--color-accent-light);
    border-radius: 50%;
    content: '';
    height: 20rem;
    left: -10rem;
    opacity: 0.1;
    position: absolute;
    bottom: -10rem;
    width: 20rem;
    z-index: var(--z-index-negative);
}

.hero__container {
    align-items: center;
    display: flex;
    flex-direction: column;
    margin-left: auto;
    margin-right: auto;
    max-width: var(--container-max-width);
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

.hero__content {
    margin-bottom: var(--spacing-xl);
    text-align: center;
    z-index: var(--z-index-base);
}

.hero__title {
    font-family: var(--font-primary);
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    margin-bottom: var(--spacing-lg);
}

.hero__subtitle {
    font-family: var(--font-secondary);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xl);
}

.hero__image {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    max-width: 100%;
    overflow: hidden;
    z-index: var(--z-index-base);
}

.hero__image img {
    border-radius: var(--border-radius-lg);
    height: auto;
    object-fit: cover;
    width: 100%;
}

@media (min-width: 768px) {
    .hero {
        padding: var(--spacing-5xl) 0;
    }
    
    .hero__container {
        flex-direction: row;
        justify-content: space-between;
    }
    
    .hero__content {
        margin-bottom: 0;
        margin-right: var(--spacing-xl);
        max-width: 50%;
        text-align: left;
    }
    
    .hero__title {
        font-size: var(--font-size-4xl);
    }
    
    .hero__subtitle {
        font-size: var(--font-size-xl);
    }
    
    .hero__image {
        max-width: 45%;
    }
}

/* =============================================
   Eco Benefits Section
============================================= */
.eco-benefits {
    padding: var(--spacing-4xl) 0;
    position: relative;
}

.eco-benefits__container {
    margin-left: auto;
    margin-right: auto;
    max-width: var(--container-max-width);
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

.eco-benefits__grid {
    display: grid;
    gap: var(--spacing-xl);
    grid-template-columns: 1fr;
}

.eco-benefits__item {
    background-color: var(--color-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-xl);
    text-align: center;
    transition: transform var(--transition-normal);
}

.eco-benefits__item:hover {
    transform: translateY(-8px);
}

.eco-benefits__icon {
    align-items: center;
    background-color: var(--color-accent-light);
    border-radius: 50%;
    color: var(--color-text);
    display: flex;
    font-size: var(--font-size-xl);
    height: 4rem;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    width: 4rem;
}

.eco-benefits__title {
    font-family: var(--font-primary);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
}

.eco-benefits__text {
    color: var(--color-text-light);
    font-family: var(--font-secondary);
    line-height: var(--line-height-relaxed);
}

@media (min-width: 576px) {
    .eco-benefits__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .eco-benefits__grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* =============================================
   Ingredients Section
============================================= */
.ingredients {
    background-color: var(--color-gray-light);
    padding: var(--spacing-4xl) 0;
    position: relative;
}

.ingredients__container {
    align-items: center;
    display: flex;
    flex-direction: column;
    margin-left: auto;
    margin-right: auto;
    max-width: var(--container-max-width);
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

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

.ingredients__text {
    font-family: var(--font-secondary);
    font-size: var(--font-size-md);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-xl);
}

.ingredients__list {
    list-style: none;
    margin-bottom: var(--spacing-xl);
    padding: 0;
    text-align: left;
}

.ingredients__item {
    font-family: var(--font-secondary);
    margin-bottom: var(--spacing-md);
    position: relative;
}

.ingredients__item::before {
    background-color: var(--color-accent);
    border-radius: 50%;
    content: '';
    display: inline-block;
    flex-shrink: 0;
    height: 0.5rem;
    margin-right: var(--spacing-md);
    margin-top: 0.5rem;
    width: 0.5rem;
}

.ingredients__highlight {
    color: var(--color-accent-dark);
    font-weight: var(--font-weight-bold);
}

.ingredients__image {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    max-width: 100%;
    overflow: hidden;
    position: relative;
}

.ingredients__image::after {
    background-color: var(--color-accent);
    content: '';
    height: 100%;
    left: 0;
    opacity: 0.1;
    position: absolute;
    top: 0;
    width: 100%;
}

.ingredients__image img {
    border-radius: var(--border-radius-lg);
    height: auto;
    object-fit: cover;
    width: 100%;
}

@media (min-width: 768px) {
    .ingredients__container {
        flex-direction: row;
        justify-content: space-between;
    }
    
    .ingredients__content {
        margin-bottom: 0;
        margin-right: var(--spacing-xl);
        max-width: 50%;
        text-align: left;
    }
    
    .ingredients__image {
        max-width: 45%;
    }
}

/* =============================================
   Sustainability Section
============================================= */
.sustainability {
    padding: var(--spacing-4xl) 0;
    position: relative;
}

.sustainability__container {
    margin-left: auto;
    margin-right: auto;
    max-width: var(--container-max-width);
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

.sustainability__timeline {
    display: flex;
    flex-direction: column;
    position: relative;
}

.sustainability__timeline::before {
    background-color: var(--color-accent-light);
    content: '';
    height: 100%;
    left: 20px;
    position: absolute;
    top: 0;
    width: 2px;
}

.sustainability__step {
    margin-bottom: var(--spacing-xl);
    padding-left: 60px;
    position: relative;
}

.sustainability__step:last-child {
    margin-bottom: 0;
}

.sustainability__step-number {
    align-items: center;
    background-color: var(--color-accent);
    border-radius: 50%;
    color: var(--color-white);
    display: flex;
    font-family: var(--font-secondary);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    height: 40px;
    justify-content: center;
    left: 0;
    position: absolute;
    top: 0;
    width: 40px;
    z-index: var(--z-index-base);
}

.sustainability__step-title {
    font-family: var(--font-primary);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
}

.sustainability__step-text {
    color: var(--color-text-light);
    font-family: var(--font-secondary);
    line-height: var(--line-height-relaxed);
}

@media (min-width: 768px) {
    .sustainability__timeline {
        flex-direction: row;
        justify-content: space-between;
    }
    
    .sustainability__timeline::before {
        height: 2px;
        left: 0;
        top: 20px;
        width: 100%;
    }
    
    .sustainability__step {
        margin-bottom: 0;
        padding-left: 0;
        padding-top: 60px;
        text-align: center;
        width: 18%;
    }
    
    .sustainability__step-number {
        left: 50%;
        top: 0;
        transform: translateX(-50%);
    }
}

/* =============================================
   Products Section
============================================= */
.products {
    background-color: var(--color-gray-light);
    padding: var(--spacing-4xl) 0;
    position: relative;
}

.products__container {
    margin-left: auto;
    margin-right: auto;
    max-width: var(--container-max-width);
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

.products__grid {
    display: grid;
    gap: var(--spacing-xl);
    grid-template-columns: 1fr;
}

.product-card {
    background-color: var(--color-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: transform var(--transition-normal);
}

.product-card:hover {
    transform: translateY(-8px);
}

.product-card__image {
    height: 0;
    overflow: hidden;
    padding-bottom: 60%;
    position: relative;
    width: 100%;
}

.product-card__image img {
    height: 100%;
    left: 0;
    object-fit: cover;
    position: absolute;
    top: 0;
    width: 100%;
}

.product-card__content {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    padding: var(--spacing-xl);
}

.product-card__title {
    font-family: var(--font-primary);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
}

.product-card__description {
    color: var(--color-text-light);
    flex-grow: 1;
    font-family: var(--font-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-md);
}

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

.product-card__tag {
    background-color: var(--color-accent-light);
    border-radius: var(--border-radius-full);
    color: var(--color-text);
    font-family: var(--font-secondary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    padding: var(--spacing-xs) var(--spacing-md);
}

@media (min-width: 576px) {
    .products__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* =============================================
   Testimonials Section
============================================= */
.testimonials {
    padding: var(--spacing-4xl) 0;
    position: relative;
}

.testimonials__container {
    margin-left: auto;
    margin-right: auto;
    max-width: var(--container-max-width);
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
    position: relative;
}

.testimonials__slider {
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.testimonial {
    background-color: var(--color-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    margin: 0 auto;
    max-width: 800px;
    padding: var(--spacing-xl);
    text-align: center;
}

.testimonial__content {
    position: relative;
}

.testimonial__text {
    font-family: var(--font-primary);
    font-size: var(--font-size-md);
    font-style: italic;
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.testimonial__text::before,
.testimonial__text::after {
    color: var(--color-accent-light);
    font-family: var(--font-primary);
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    line-height: 1;
    position: absolute;
}

.testimonial__text::before {
    content: '"';
    left: -0.5rem;
    top: -0.5rem;
}

.testimonial__text::after {
    content: '"';
    right: -0.5rem;
    bottom: -0.5rem;
}

.testimonial__author {
    align-items: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.testimonial__author-name {
    font-family: var(--font-secondary);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-xs);
}

.testimonial__author-title {
    color: var(--color-text-light);
    font-family: var(--font-secondary);
    font-size: var(--font-size-sm);
}

.testimonials__controls {
    align-items: center;
    display: flex;
    justify-content: center;
}

.testimonials__control {
    align-items: center;
    background-color: var(--color-white);
    border: none;
    border-radius: 50%;
    box-shadow: var(--shadow-md);
    color: var(--color-text);
    cursor: pointer;
    display: flex;
    height: 3rem;
    justify-content: center;
    margin: 0 var(--spacing-sm);
    transition: all var(--transition-fast);
    width: 3rem;
}

.testimonials__control:hover,
.testimonials__control:focus {
    background-color: var(--color-accent);
    color: var(--color-white);
}

/* =============================================
   FAQ Section
============================================= */
.faq {
    background-color: var(--color-gray-light);
    padding: var(--spacing-4xl) 0;
    position: relative;
}

.faq__container {
    margin-left: auto;
    margin-right: auto;
    max-width: var(--container-max-width);
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

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

.faq__item {
    border-bottom: 1px solid var(--color-gray);
    margin-bottom: var(--spacing-md);
}

.faq__question {
    background: none;
    border: none;
    color: var(--color-text);
    cursor: pointer;
    display: flex;
    font-family: var(--font-primary);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-bold);
    justify-content: space-between;
    padding: var(--spacing-md) 0;
    text-align: left;
    width: 100%;
}

.faq__icon {
    display: inline-block;
    height: 12px;
    margin-left: var(--spacing-md);
    position: relative;
    width: 12px;
}

.faq__icon::before,
.faq__icon::after {
    background-color: var(--color-text);
    content: '';
    height: 2px;
    left: 0;
    position: absolute;
    top: 5px;
    transition: transform var(--transition-fast);
    width: 12px;
}

.faq__icon::after {
    transform: rotate(90deg);
}

.faq__question[aria-expanded="true"] .faq__icon::after {
    transform: rotate(0);
}

.faq__answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.faq__answer p {
    color: var(--color-text-light);
    font-family: var(--font-secondary);
    line-height: var(--line-height-relaxed);
    padding-bottom: var(--spacing-md);
}

/* =============================================
   Milestones Section
============================================= */
.milestones {
    padding: var(--spacing-4xl) 0;
    position: relative;
}

.milestones__container {
    margin-left: auto;
    margin-right: auto;
    max-width: var(--container-max-width);
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

.milestones__timeline {
    position: relative;
}

.milestone {
    background-color: var(--color-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-xl);
    overflow: hidden;
    padding: var(--spacing-xl);
    position: relative;
}

.milestone:last-child {
    margin-bottom: 0;
}

.milestone:nth-child(odd) {
    transform: translateX(20px);
}

.milestone:nth-child(even) {
    transform: translateX(-20px);
}

.milestone::before {
    background-color: var(--color-accent);
    content: '';
    height: 100%;
    left: 0;
    position: absolute;
    top: 0;
    width: 4px;
}

.milestone__year {
    background-color: var(--color-accent);
    border-radius: var(--border-radius-md);
    color: var(--color-white);
    display: inline-block;
    font-family: var(--font-secondary);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-xs) var(--spacing-md);
}

.milestone__title {
    font-family: var(--font-primary);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
}

.milestone__text {
    color: var(--color-text-light);
    font-family: var(--font-secondary);
    line-height: var(--line-height-relaxed);
}

@media (min-width: 768px) {
    .milestones__timeline {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
    }
    
    .milestone {
        margin-bottom: var(--spacing-xl);
        width: 48%;
    }
    
    .milestone:nth-child(odd),
    .milestone:nth-child(even) {
        transform: none;
    }
}

/* =============================================
   Contact Section
============================================= */
.contact {
    background-color: var(--color-gray-light);
    padding: var(--spacing-4xl) 0;
    position: relative;
}

.contact__container {
    margin-left: auto;
    margin-right: auto;
    max-width: var(--container-max-width);
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

.contact__content {
    display: flex;
    flex-direction: column;
}

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

.contact__info-item {
    align-items: flex-start;
    display: flex;
    margin-bottom: var(--spacing-lg);
}

.contact__info-item:last-child {
    margin-bottom: 0;
}

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

.contact__info-text {
    flex-grow: 1;
}

.contact__info-title {
    font-family: var(--font-primary);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-xs);
}

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

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    color: var(--color-text);
    display: block;
    font-family: var(--font-secondary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-sm);
}

.form-input,
.form-textarea {
    background-color: var(--color-gray-light);
    border: 1px solid var(--color-gray);
    border-radius: var(--border-radius-md);
    color: var(--color-text);
    font-family: var(--font-secondary);
    padding: var(--spacing-md);
    transition: border-color var(--transition-fast);
    width: 100%;
}

.form-input:focus,
.form-textarea:focus {
    border-color: var(--color-accent);
    outline: none;
}

.form-input--error,
.form-textarea--error {
    border-color: var(--color-error);
}

.form-error {
    color: var(--color-error);
    font-family: var(--font-secondary);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
    min-height: 1.5rem;
}

.form-group--checkbox {
    align-items: flex-start;
    display: flex;
}

.form-checkbox {
    appearance: none;
    background-color: var(--color-gray-light);
    border: 1px solid var(--color-gray);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    height: 1.5rem;
    margin-right: var(--spacing-sm);
    position: relative;
    width: 1.5rem;
}

.form-checkbox:checked {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
}

.form-checkbox:checked::after {
    border-bottom: 2px solid var(--color-white);
    border-right: 2px solid var(--color-white);
    content: '';
    display: block;
    height: 0.5rem;
    left: 50%;
    position: absolute;
    top: 40%;
    transform: translate(-50%, -50%) rotate(45deg);
    width: 0.25rem;
}

.form-checkbox:focus {
    border-color: var(--color-accent);
    outline: none;
}

.form-checkbox--error {
    border-color: var(--color-error);
}

.form-checkbox-label {
    color: var(--color-text);
    cursor: pointer;
    font-family: var(--font-secondary);
    font-size: var(--font-size-base);
    line-height: 1.5;
}

@media (min-width: 768px) {
    .contact__content {
        flex-direction: row;
    }
    
    .contact__info {
        margin-bottom: 0;
        margin-right: var(--spacing-xl);
        width: 40%;
    }
    
    .contact__form {
        width: 60%;
    }
}

/* =============================================
   Success Page
============================================= */
.success {
    padding: var(--spacing-5xl) 0;
    text-align: center;
}

.success__container {
    margin-left: auto;
    margin-right: auto;
    max-width: 600px;
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

.success__icon {
    color: var(--color-accent);
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-xl);
}

.success__title {
    font-family: var(--font-primary);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-lg);
}

.success__text {
    color: var(--color-text-light);
    font-family: var(--font-secondary);
    font-size: var(--font-size-md);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-xl);
}

.success__actions {
    display: flex;
    justify-content: center;
}

/* =============================================
   Page (Generic Content Page)
============================================= */
.page {
    padding: var(--spacing-4xl) 0;
}

.page__container {
    margin-left: auto;
    margin-right: auto;
    max-width: 800px;
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

.page__title {
    font-family: var(--font-primary);
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.page__content {
    background-color: var(--color-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-xl);
}

.page__intro {
    color: var(--color-text);
    font-family: var(--font-secondary);
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-xl);
}

.page__subtitle {
    color: var(--color-text);
    font-family: var(--font-primary);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.page__subheading {
    color: var(--color-text);
    font-family: var(--font-primary);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.page__list {
    list-style-type: disc;
    margin-bottom: var(--spacing-lg);
    margin-left: var(--spacing-lg);
}

.page__list li {
    color: var(--color-text-light);
    font-family: var(--font-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-sm);
}

.page__numbered-list {
    list-style-type: decimal;
    margin-bottom: var(--spacing-lg);
    margin-left: var(--spacing-lg);
}

.page__numbered-list li {
    color: var(--color-text-light);
    font-family: var(--font-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-sm);
}

.page__updated {
    border-top: 1px solid var(--color-gray);
    color: var(--color-gray-dark);
    font-family: var(--font-secondary);
    font-size: var(--font-size-sm);
    font-style: italic;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-md);
    text-align: right;
}

/* =============================================
   Footer
============================================= */
.footer {
    background-color: var(--color-text);
    color: var(--color-white);
    padding-top: var(--spacing-2xl);
}

.footer__container {
    display: grid;
    gap: var(--spacing-xl);
    grid-template-columns: 1fr;
    margin-left: auto;
    margin-right: auto;
    max-width: var(--container-max-width);
    padding-bottom: var(--spacing-2xl);
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

.footer__logo {
    display: block;
    margin-bottom: var(--spacing-md);
    max-width: 160px;
}

.footer__logo img {
    height: auto;
    width: 100%;
}

.footer__tagline {
    font-family: var(--font-primary);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
}

.footer__text {
    color: var(--color-gray);
    font-family: var(--font-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-md);
}

.footer__title {
    color: var(--color-accent);
    font-family: var(--font-primary);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
}

.footer__links {
    list-style: none;
}

.footer__link {
    color: var(--color-gray);
    display: block;
    font-family: var(--font-secondary);
    padding: var(--spacing-xs) 0;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer__link:hover,
.footer__link:focus {
    color: var(--color-white);
    text-decoration: none;
}

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

.footer__news-title {
    color: var(--color-white);
    font-family: var(--font-secondary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-xs);
}

.footer__news-text {
    color: var(--color-gray);
    font-family: var(--font-secondary);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-relaxed);
}

.footer__bottom {
    background-color: rgba(0, 0, 0, 0.2);
    padding: var(--spacing-md) 0;
    text-align: center;
}

.footer__copyright {
    color: var(--color-gray);
    font-family: var(--font-secondary);
    font-size: var(--font-size-sm);
}

@media (min-width: 576px) {
    .footer__container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .footer__container {
        grid-template-columns: 2fr 1fr 1fr 2fr;
    }
}

/* =============================================
   Back to Top Button
============================================= */
.back-to-top {
    align-items: center;
    background-color: var(--color-accent);
    border: none;
    border-radius: 50%;
    bottom: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    color: var(--color-white);
    cursor: pointer;
    display: flex;
    height: 3rem;
    justify-content: center;
    opacity: 0;
    position: fixed;
    right: var(--spacing-xl);
    transition: all var(--transition-normal);
    visibility: hidden;
    width: 3rem;
    z-index: var(--z-index-fixed);
}

.back-to-top--visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover,
.back-to-top:focus {
    background-color: var(--color-accent-dark);
}
