/**
 * Polverta Pilates for Seniors - Main Stylesheet
 *
 * Table of Contents:
 * 1. CSS Variables (Custom Properties)
 * 2. Base Styles
 * 3. Layout & Container
 * 4. Typography
 * 5. Buttons & Interactive Elements
 * 6. Header & Navigation
 * 7. Hero Section
 * 8. Section Styles
 * 9. Cards
 * 10. Grid Layout
 * 11. Team Section
 * 12. Testimonial Slider
 * 13. Pricing
 * 14. FAQ Accordion
 * 15. Forms
 * 16. Contact Section
 * 17. Footer
 * 18. Accessibility & Utility Classes
 * 19. Media Queries
 */

/* =====================
   1. CSS Variables
===================== */
:root {
    /* Colors */
    --color-background: #F5F5F5;
    --color-accent: #98D4BB;
    --color-text: #333333;
    --color-button: #77C4A3;
    --color-button-hover: #69B592;
    --color-light: #FFFFFF;
    --color-gray: #777777;
    --color-light-gray: #EEEEEE;
    --color-dark-gray: #444444;
    --color-success: #4CAF50;
    
    /* Typography */
    --font-family: 'Roboto', sans-serif;
    --font-size-base: 16px;
    --font-size-small: 0.875rem;
    --font-size-medium: 1.125rem;
    --font-size-large: 1.25rem;
    --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-bold: 700;
    --line-height-normal: 1.5;
    --line-height-tight: 1.2;
    
    /* Spacing */
    --spacing-xxs: 0.25rem;
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    --spacing-xxxl: 4rem;
    
    /* Borders */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
    --border-radius-round: 50%;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
    --shadow-inset: inset 0 2px 4px rgba(0, 0, 0, 0.05);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Container Width */
    --container-width-sm: 540px;
    --container-width-md: 720px;
    --container-width-lg: 960px;
    --container-width-xl: 1140px;
    
    /* Device Breakpoints */
    --breakpoint-xs: 0;
    --breakpoint-sm: 576px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 992px;
    --breakpoint-xl: 1200px;
    
    /* Z-index layers */
    --z-index-dropdown: 1000;
    --z-index-sticky: 1020;
    --z-index-fixed: 1030;
    --z-index-modal-backdrop: 1040;
    --z-index-modal: 1050;
    --z-index-popover: 1060;
    --z-index-tooltip: 1070;
}

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

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

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

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

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

a:hover, a:focus {
    color: var(--color-button-hover);
}

ul {
    list-style: none;
}

button {
    cursor: pointer;
    font-family: var(--font-family);
    background: none;
    border: none;
}

/* Focus styles for accessibility */
a:focus, button:focus, input:focus, textarea:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* =====================
   3. Layout & Container
===================== */
.container {
    width: 100%;
    padding-right: var(--spacing-md);
    padding-left: var(--spacing-md);
    margin-right: auto;
    margin-left: auto;
}

@media (min-width: 576px) {
    .container {
        max-width: var(--container-width-sm);
    }
}

@media (min-width: 768px) {
    .container {
        max-width: var(--container-width-md);
    }
}

@media (min-width: 992px) {
    .container {
        max-width: var(--container-width-lg);
    }
}

@media (min-width: 1200px) {
    .container {
        max-width: var(--container-width-xl);
    }
}

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

.legal-section {
    padding: calc(3*var(--spacing-xxl)) 0 var(--spacing-xxl);
}

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

.section--accent {
    background-color: var(--color-accent);
    color: var(--color-light);
}

/* =====================
   4. Typography
===================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    margin-bottom: var(--spacing-md);
    color: rgba(0, 0, 0, .87);
}

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);
}

.section__title {
    text-align: center;
    margin-bottom: var(--spacing-xs);
}

.section__subtitle {
    text-align: center;
    font-size: var(--font-size-medium);
    color: var(--color-gray);
    margin-bottom: var(--spacing-xl);
}

.section--accent .section__subtitle {
    color: var(--color-light);
    opacity: 0.9;
}

/* =====================
   5. Buttons & Interactive Elements
===================== */
.button {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-xl);
    background-color: var(--color-button);
    color: var(--color-light);
    border-radius: var(--border-radius-md);
    font-weight: var(--font-weight-medium);
    text-align: center;
    transition: background-color var(--transition-fast), transform var(--transition-fast);
    box-shadow: var(--shadow-sm);
    border: none;
    cursor: pointer;
}

.button:hover, .button:focus {
    background-color: var(--color-button-hover);
    color: var(--color-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.button:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.button--light {
    background-color: var(--color-light);
    color: var(--color-button);
    border: 1px solid var(--color-button);
}

.button--light:hover, .button--light:focus {
    background-color: var(--color-light-gray);
    color: var(--color-button);
}

.back-to-top {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 40px;
    height: 40px;
    background-color: var(--color-button);
    color: var(--color-light);
    border-radius: var(--border-radius-round);
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: var(--shadow-md);
    z-index: var(--z-index-fixed);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal), background-color var(--transition-fast);
}

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

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

/* =====================
   6. Header & Navigation
===================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--color-light);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-md) 0;
    z-index: var(--z-index-fixed);
}

.header__container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: block;
    max-width: 200px;
}

.logo__image {
    width: 100%;
    height: auto;
    filter: invert(1);
}

.nav {
    position: relative;
}

.nav__toggle {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: var(--z-index-dropdown);
}

.nav__toggle-bar {
    width: 30px;
    height: 3px;
    background-color: var(--color-text);
    border-radius: 3px;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav__toggle--active .nav__toggle-bar:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

.nav__toggle--active .nav__toggle-bar:nth-child(2) {
    opacity: 0;
}

.nav__toggle--active .nav__toggle-bar:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

.nav__list {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: var(--color-light);
    box-shadow: var(--shadow-md);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    margin-top: var(--spacing-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity var(--transition-normal), visibility var(--transition-normal), transform var(--transition-normal);
    z-index: var(--z-index-dropdown);
}

.nav__list--active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

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

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

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

.nav__link:hover, .nav__link:focus {
    color: var(--color-button);
}

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

.nav__link--accent:hover, .nav__link--accent:focus {
    color: var(--color-button-hover);
}

@media (min-width: 992px) {
    .nav__toggle {
        display: none;
    }
    
    .nav__list {
        position: static;
        display: flex;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        padding: 0;
        margin-top: 0;
        background-color: transparent;
    }
    
    .nav__item {
        margin-bottom: 0;
        margin-left: var(--spacing-md);
    }
    
    .nav__link {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
}

/* =====================
   7. Hero Section
===================== */
.hero {
    background-image: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('../images/img01.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: var(--color-light);
    padding: var(--spacing-xxxl) 0;
    margin-top: 70px;
    text-align: center;
}

.hero__content {
    max-width: 700px;
    margin: 0 auto;
    padding: var(--spacing-xxl) 0;
}

.hero__title {
    font-size: var(--font-size-xxxl);
    margin-bottom: var(--spacing-md);
    color: var(--color-light);
}

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

/* =====================
   8. Section Styles
===================== */
.page-content {
    padding: var(--spacing-xl) 0;
}

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

.policy__updated {
    color: var(--color-gray);
    font-size: var(--font-size-small);
    margin-bottom: var(--spacing-xl);
}

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

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

.policy__subheading {
    font-size: var(--font-size-medium);
    margin-bottom: var(--spacing-sm);
}

.policy__list {
    list-style: disc;
    margin-left: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

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

/* Success Page */
.success {
    min-height: calc(100vh - 350px);
    display: flex;
    align-items: center;
}

.success__content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    padding: var(--spacing-xxl) var(--spacing-md);
}

.success__icon {
    font-size: 5rem;
    color: var(--color-button);
    margin-bottom: var(--spacing-xl);
}

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

/* =====================
   9. Cards
===================== */
.cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.card {
    background-color: var(--color-light);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card__icon {
    font-size: 2.5rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
}

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

.card__text {
    color: var(--color-gray);
}

@media (min-width: 768px) {
    .cards {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

/* =====================
   10. Grid Layout
===================== */
.grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

.grid__item {
    background-color: var(--color-light);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.grid__item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.grid__image {
    width: 100%;
    height: 300px;
    object-fit: cover;
}

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

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

.grid__text {
    color: var(--color-gray);
    margin-bottom: var(--spacing-md);
}

.grid__details {
    font-size: var(--font-size-small);
    color: var(--color-dark-gray);
}

.grid__details i {
    color: var(--color-accent);
    margin-right: var(--spacing-xxs);
}

@media (min-width: 768px) {
    .grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* =====================
   11. Team Section
===================== */
.team {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

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

.team__member:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.team__image {
    width: 150px;
    height: 150px;
    object-fit: cover;
    border-radius: var(--border-radius-round);
    margin: 0 auto var(--spacing-md);
}

.team__name {
    margin-bottom: var(--spacing-xxs);
}

.team__role {
    color: var(--color-accent);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-md);
}

.team__bio {
    color: var(--color-gray);
}

@media (min-width: 768px) {
    .team {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* =====================
   12. Testimonial Slider
===================== */
.slider {
    position: relative;
    overflow: hidden;
    margin-top: var(--spacing-xl);
}

.slider__container {
    display: flex;
    transition: transform var(--transition-normal);
}

.slider__item {
    min-width: 100%;
    padding: 0 var(--spacing-md);
}

.testimonial {
    background-color: var(--color-light);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-xl);
    height: 100%;
}

.testimonial__content {
    position: relative;
}

.testimonial__quote {
    font-style: italic;
    margin-bottom: var(--spacing-lg);
    color: var(--color-dark-gray);
}

.testimonial__quote::before {
    content: '"';
    font-size: 3rem;
    color: var(--color-accent);
    opacity: 0.5;
    position: absolute;
    top: -20px;
    left: -10px;
}

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

.testimonial__image {
    width: 60px;
    height: 60px;
    border-radius: var(--border-radius-round);
    margin-right: var(--spacing-md);
    object-fit: cover;
}

.testimonial__name {
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-xxs);
}

.testimonial__detail {
    font-size: var(--font-size-small);
    color: var(--color-gray);
}

.slider__button {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background-color: var(--color-light);
    color: var(--color-text);
    border-radius: var(--border-radius-round);
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: var(--shadow-md);
    z-index: 1;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.slider__button:hover, .slider__button:focus {
    background-color: var(--color-button);
    color: var(--color-light);
}

.slider__button--prev {
    left: var(--spacing-md);
}

.slider__button--next {
    right: var(--spacing-md);
}

.slider__dots {
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-lg);
}

.slider__dot {
    width: 12px;
    height: 12px;
    background-color: var(--color-light-gray);
    border-radius: var(--border-radius-round);
    margin: 0 var(--spacing-xs);
    transition: background-color var(--transition-fast);
}

.slider__dot--active, .slider__dot:hover, .slider__dot:focus {
    background-color: var(--color-accent);
}

@media (min-width: 992px) {
    .slider__button--prev {
        left: var(--spacing-xl);
    }
    
    .slider__button--next {
        right: var(--spacing-xl);
    }
}

/* =====================
   13. Pricing
===================== */
.pricing {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.price-card {
    background-color: var(--color-light);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    position: relative;
}

.price-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.price-card--popular {
    transform: scale(1.05);
    z-index: 1;
}

.price-card--popular:hover {
    transform: scale(1.05) translateY(-5px);
}

.price-card__badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background-color: var(--color-accent);
    color: var(--color-light);
    padding: var(--spacing-xxs) var(--spacing-sm);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-small);
    font-weight: var(--font-weight-medium);
}

.price-card__header {
    padding: var(--spacing-xl);
    background-color: var(--color-accent);
    color: var(--color-light);
    text-align: center;
}

.price-card__title {
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-large);
}

.price-card__price {
    font-size: var(--font-size-xxl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-xxs);
}

.price-card__period {
    font-size: var(--font-size-small);
    opacity: 0.8;
}

.price-card__body {
    padding: var(--spacing-xl);
    color: var(--color-text);
}

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

.price-card__features li {
    padding: var(--spacing-xs) 0;
    position: relative;
    padding-left: var(--spacing-lg);
}

.price-card__features li::before {
    content: '\f00c';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    color: var(--color-accent);
    position: absolute;
    left: 0;
}

@media (min-width: 768px) {
    .pricing {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* =====================
   14. FAQ Accordion
===================== */
.faq {
    max-width: 800px;
    margin: var(--spacing-xl) auto 0;
}

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

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

.faq__question:hover, .faq__question:focus {
    background-color: var(--color-light-gray);
}

.faq__icon {
    font-size: var(--font-size-small);
    transition: transform var(--transition-fast);
}

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

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

.faq__answer p {
    padding-bottom: var(--spacing-md);
    padding-top: var(--spacing-md);
    margin-bottom: 0;
}

/* =====================
   15. Forms
===================== */
.subscribe-form {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.subscribe-form__container {
    display: flex;
    margin-bottom: var(--spacing-sm);
}

.subscribe-form__input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-light-gray);
    border-radius: var(--border-radius-md) 0 0 var(--border-radius-md);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
}

.subscribe-form__button {
    border-radius: 0 var(--border-radius-md) var(--border-radius-md) 0;
}

.subscribe-form__note {
    font-size: var(--font-size-small);
    color: var(--color-gray);
}

.contact-form {
    background-color: var(--color-light);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    color: var(--color-text);
}

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

.contact-form__label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: var(--font-weight-medium);
}

.contact-form__input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-light-gray);
    border-radius: var(--border-radius-md);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    transition: border-color var(--transition-fast);
}

.contact-form__input:focus {
    border-color: var(--color-accent);
}

.contact-form__textarea {
    min-height: 150px;
    resize: vertical;
}

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

/* =====================
   16. Contact Section
===================== */
.contact {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

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

.contact__detail {
    display: flex;
    align-items: flex-start;
}

.contact__icon {
    font-size: var(--font-size-xl);
    margin-right: var(--spacing-md);
    color: var(--color-light);
}

.contact__title {
    margin-bottom: var(--spacing-xxs);
    color: var(--color-light);
}

.contact__text {
    color: var(--color-light);
    opacity: 0.9;
}

.contact__text a {
    color: var(--color-light);
    transition: opacity var(--transition-fast);
}

.contact__text a:hover, .contact__text a:focus {
    opacity: 0.8;
}

@media (min-width: 768px) {
    .contact {
        grid-template-columns: 1fr 1fr;
    }
    
    .contact__info {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

.logo--footer {
    margin: 0 auto var(--spacing-xl);
    max-width: 150px;
}

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

.footer-nav__list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

.footer-nav__item {
    margin: 0 var(--spacing-sm) var(--spacing-sm);
}

.footer-nav__link {
    color: var(--color-light);
    opacity: 0.8;
    transition: opacity var(--transition-fast);
}

.footer-nav__link:hover, .footer-nav__link:focus {
    opacity: 1;
    color: var(--color-light);
}

.footer__legal {
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
}

.legal-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.legal-nav__item {
    margin: 0 var(--spacing-sm) var(--spacing-sm);
}

.legal-nav__link {
    color: var(--color-light);
    opacity: 0.6;
    font-size: var(--font-size-small);
    transition: opacity var(--transition-fast);
}

.legal-nav__link:hover, .legal-nav__link:focus {
    opacity: 0.8;
    color: var(--color-light);
}

.footer__accessibility {
    font-size: var(--font-size-small);
    opacity: 0.6;
    max-width: 600px;
    margin: 0 auto var(--spacing-md);
}

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

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

.visually-hidden {
    visibility: hidden;
    opacity: 0;
}

/* =====================
   19. Media Queries
===================== */
@media (max-width: 575.98px) {
    :root {
        --font-size-xxxl: 2rem;
        --font-size-xxl: 1.75rem;
        --font-size-xl: 1.375rem;
    }
    
    .section {
        padding: var(--spacing-xl) 0;
    }
    
    .hero {
        padding: var(--spacing-xl) 0;
    }
    
    .hero__content {
        padding: var(--spacing-xl) 0;
    }
    
    .subscribe-form__container {
        flex-direction: column;
    }
    
    .subscribe-form__input {
        border-radius: var(--border-radius-md);
        margin-bottom: var(--spacing-sm);
    }
    
    .subscribe-form__button {
        border-radius: var(--border-radius-md);
    }
}

@media (min-width: 576px) and (max-width: 767.98px) {
    .hero__content {
        padding: var(--spacing-xl) 0;
    }
}

@media (min-width: 768px) and (max-width: 991.98px) {
    .contact__info {
        grid-template-columns: 1fr;
    }
}

@media (min-width: 992px) and (max-width: 1199.98px) {
    .container {
        max-width: var(--container-width-lg);
    }
}