/* 
* Sylvernia - Hydromassage Landing Page
* Author: Claude
* Version: 1.0
*/

/* ===== VARIABLES ===== */
:root {
    /* Colors */
    --color-background: #1B2A44;
    --color-accent: #4682A9;
    --color-text: #E0E0E0;
    --color-button: #91C8E4;
    --color-dark: #0F1C2E;
    --color-light: #F5F5F5;
    --color-error: #E57373;
    --color-success: #81C784;

    /* Typography */
    --font-heading: 'Fjalla One', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --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: 1.2;
    --line-height-normal: 1.5;
    --line-height-loose: 1.8;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1), 0 10px 10px rgba(0, 0, 0, 0.04);

    /* Border Radius */
    --radius-none: 0;
    --radius-sm: 0.125rem;
    --radius-md: 0.25rem;
    --radius-lg: 0.5rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;

    /* Z-index */
    --z-below: -1;
    --z-normal: 1;
    --z-above: 10;
    --z-header: 100;
    --z-overlay: 200;
    --z-modal: 300;
    --z-toast: 400;

    /* Device Breakpoints */
    --breakpoint-sm: 640px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1280px;
    --breakpoint-2xl: 1536px;
}

/* ===== RESET & BASE STYLES ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

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

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

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

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

button {
    font-family: inherit;
    cursor: pointer;
    background: none;
    border: none;
    color: inherit;
}

ul, ol {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    line-height: var(--line-height-tight);
    font-weight: normal;
}

option {
    color: var(--color-background);
}

/* ===== LAYOUT ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: var(--z-header);
    background-color: var(--color-background);
    transition: transform var(--transition-normal), background-color var(--transition-normal);
}

.header--scrolled {
    box-shadow: var(--shadow-md);
    background-color: rgba(27, 42, 68, 0.95);
}

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

.header__container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    max-width: var(--breakpoint-xl);
    margin: 0 auto;
}

.logo {
    z-index: var(--z-above);
    position: relative;
}

.logo__image {
    width: 150px;
    height: auto;
}

.main {
    margin-top: 70px;
}

.section {
    padding: var(--spacing-3xl) var(--spacing-md);
    position: relative;
    overflow: hidden;
}

.section__container {
    max-width: var(--breakpoint-xl);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

.section__container--reverse {
    direction: rtl;
}

.section__container--reverse > * {
    direction: ltr;
}

.section_grid {
    display: grid;
    gap: var(--spacing-xl);
}

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

.section__title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-xl);
    position: relative;
    display: inline-block;
}

.section__title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -0.5rem;
    height: 4px;
    width: 60px;
    background-color: var(--color-accent);
}

.section__title--center {
    text-align: center;
    display: block;
}

.section__title--center::after {
    left: 50%;
    transform: translateX(-50%);
}

.section__title--large {
    font-size: var(--font-size-4xl);
}

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

.section__image-container {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    transform: rotate(-2deg) translateY(var(--spacing-md));
}

.section__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
    opacity: 0;
    transform: scale(1.05);
}

.section__image.image-loaded {
    opacity: 1;
    transform: scale(1);
}

.section__form-container {
    background-color: rgba(70, 130, 169, 0.1);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    position: relative;
    z-index: var(--z-normal);
}

.footer {
    background-color: var(--color-accent);
    padding: var(--spacing-2xl) var(--spacing-md);
    position: relative;
    z-index: var(--z-normal);
}

.footer__container {
    max-width: var(--breakpoint-xl);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

.footer__logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.footer__logo-image {
    width: 180px;
    margin-bottom: var(--spacing-md);
}

.footer__slogan {
    font-style: italic;
    opacity: 0.9;
    max-width: 300px;
}

.footer__nav {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-xl);
}

.footer__nav-title {
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-lg);
    position: relative;
    display: inline-block;
}

.footer__nav-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -0.25rem;
    height: 3px;
    width: 30px;
    background-color: var(--color-text);
}

.footer__nav-item:not(:last-child) {
    margin-bottom: var(--spacing-sm);
}

.footer__nav-link {
    display: inline-block;
    transition: transform var(--transition-normal);
}

.footer__nav-link:hover {
    transform: translateX(var(--spacing-xs));
}

.footer__bottom {
    text-align: center;
    border-top: 1px solid rgba(224, 224, 224, 0.2);
    padding-top: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.footer__copyright {
    font-size: var(--font-size-sm);
    opacity: 0.8;
}

.back-to-top {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    z-index: var(--z-above);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: opacity var(--transition-normal), transform var(--transition-normal), visibility var(--transition-normal);
}

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

.back-to-top__link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background-color: var(--color-accent);
    color: var(--color-text);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-md);
    transition: background-color var(--transition-normal), transform var(--transition-normal);
}

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

/* ===== NAVIGATION ===== */
.nav {
    display: flex;
    align-items: center;
}

.nav__toggle {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    z-index: var(--z-above);
}

.nav__toggle-bar {
    width: 100%;
    height: 3px;
    background-color: var(--color-text);
    border-radius: var(--radius-full);
    transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.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: fixed;
    top: 0;
    right: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--color-background);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    z-index: var(--z-above);
}

.nav__list--active {
    transform: translateX(0);
}

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

.nav__link {
    font-family: var(--font-heading);
    font-size: var(--font-size-xl);
    position: relative;
    transition: color var(--transition-normal);
}

.nav__link::before {
    content: '';
    position: absolute;
    left: 0;
    bottom: -5px;
    width: 0;
    height: 3px;
    background-color: var(--color-button);
    transition: width var(--transition-normal);
}

.nav__link:hover::before {
    width: 100%;
}

/* ===== HERO SECTION ===== */
.hero {
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    padding-top: 70px;
    background-image: linear-gradient(to bottom, rgba(27, 42, 68, 0.7), rgba(27, 42, 68, 0.9)), url('../images/img00.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.hero__container {
    max-width: 800px;
    padding: 0 var(--spacing-xl);
    position: relative;
    z-index: var(--z-normal);
}

.hero__title {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-lg);
}

.hero__slogan {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-xl);
    font-style: italic;
    opacity: 0.9;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    background-color: var(--color-button);
    color: var(--color-background);
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    position: relative;
    overflow: hidden;
    z-index: var(--z-normal);
}

.btn::after {
    content: '';
    position: absolute;
    top: var(--y-pos, 0);
    left: var(--x-pos, 0);
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.5s, height 0.5s;
}

.btn--hover::after {
    width: 300px;
    height: 300px;
}

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

.btn--primary {
    background-color: var(--color-accent);
    color: var(--color-text);
    font-weight: 700;
}

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

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

.btn--full {
    width: 100%;
    text-align: center;
}

/* ===== BENEFITS SECTION ===== */
.benefits {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.benefit {
    padding: var(--spacing-lg);
    background-color: rgba(70, 130, 169, 0.1);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    position: relative;
    z-index: var(--z-normal);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-normal), transform var(--transition-normal);
}

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

.benefit__icon {
    font-size: var(--font-size-2xl);
    color: var(--color-button);
    margin-bottom: var(--spacing-md);
}

.benefit__title {
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-lg);
}

/* ===== SESSIONS SECTION ===== */
.sessions {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
}

.session {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.session__image-container {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    position: relative;
}

.session__image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: transform var(--transition-slow);
    opacity: 0;
    transform: scale(1.05);
}

.session__image.image-loaded {
    opacity: 1;
    transform: scale(1);
}

.session__image-container:hover .session__image {
    transform: scale(1.05);
}

.session__content {
    padding: var(--spacing-lg);
    background-color: rgba(70, 130, 169, 0.1);
    border-radius: var(--radius-lg);
    position: relative;
}

.session__title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
}

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

.session__duration {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    font-weight: 600;
    color: var(--color-button);
}

/* ===== TESTIMONIALS SECTION ===== */
.testimonials {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

.testimonial {
    background-color: rgba(70, 130, 169, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    position: relative;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.testimonial::before {
    content: '"';
    position: absolute;
    top: -20px;
    left: 20px;
    font-size: 100px;
    font-family: var(--font-heading);
    color: var(--color-accent);
    opacity: 0.3;
    line-height: 1;
}

.testimonial__text {
    font-style: italic;
    margin-bottom: var(--spacing-lg);
    position: relative;
    z-index: var(--z-normal);
}

.testimonial__author {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.testimonial__name {
    font-size: var(--font-size-md);
}

.testimonial__info {
    font-size: var(--font-size-sm);
    opacity: 0.8;
}

/* ===== EQUIPMENT SECTION ===== */
.equipment {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.equipment__item {
    padding: var(--spacing-lg);
    background-color: rgba(70, 130, 169, 0.1);
    border-radius: var(--radius-md);
    transition: transform var(--transition-normal);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-normal), transform var(--transition-normal);
}

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

.equipment__title {
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-lg);
    color: var(--color-button);
}

/* ===== TIPS SECTION ===== */
.tips {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.tip {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding: var(--spacing-lg);
    background-color: rgba(70, 130, 169, 0.1);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-normal), transform var(--transition-normal);
}

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

.tip__icon {
    font-size: var(--font-size-2xl);
    color: var(--color-button);
    margin-bottom: var(--spacing-md);
}

.tip__title {
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-lg);
}

/* ===== FAQ SECTION ===== */
.faq {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

.faq__item {
    border-radius: var(--radius-md);
    overflow: hidden;
}

.faq__question {
    width: 100%;
    text-align: left;
    padding: var(--spacing-lg);
    background-color: rgba(70, 130, 169, 0.1);
    font-family: var(--font-heading);
    font-size: var(--font-size-lg);
    position: relative;
    transition: background-color var(--transition-normal);
    border-radius: var(--radius-md);
}

.faq__question::after {
    content: '+';
    position: absolute;
    right: var(--spacing-lg);
    top: 50%;
    transform: translateY(-50%);
    font-size: var(--font-size-xl);
    transition: transform var(--transition-normal);
}

.faq__question--active {
    background-color: var(--color-accent);
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
}

.faq__question--active::after {
    content: '-';
}

.faq__answer {
    background-color: rgba(70, 130, 169, 0.05);
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal), padding var(--transition-normal);
    border-bottom-left-radius: var(--radius-md);
    border-bottom-right-radius: var(--radius-md);
}

.faq__answer--active {
    padding: var(--spacing-lg);
    max-height: 500px;
}

/* ===== CONTACT SECTION ===== */
.contact-info {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.contact-info__item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.contact-info__icon {
    color: var(--color-button);
    font-size: var(--font-size-lg);
    width: 24px;
}

.contact-form {
    display: grid;
    gap: var(--spacing-md);
}

.form-group {
    position: relative;
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--spacing-md);
    background-color: rgba(224, 224, 224, 0.1);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    color: var(--color-text);
    transition: border-color var(--transition-normal), background-color var(--transition-normal);
    font-family: var(--font-body);
    font-size: var(--font-size-base);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-button);
    background-color: rgba(224, 224, 224, 0.05);
}

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

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

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23E0E0E0' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 16px;
    padding-right: 2.5rem;
}

.form-group--checkbox {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.form-checkbox {
    width: 20px;
    height: 20px;
    margin-top: 3px;
}

.form-checkbox-label {
    font-size: var(--font-size-sm);
}

/* ===== MAP SECTION ===== */
.map {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    height: 450px;
}

/* ===== SUCCESS PAGE ===== */
.section--success {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 200px);
    text-align: center;
}

.success {
    max-width: 600px;
    padding: var(--spacing-2xl);
    background-color: rgba(70, 130, 169, 0.1);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.success__icon {
    font-size: 4rem;
    color: var(--color-success);
    margin-bottom: var(--spacing-lg);
}

.success__title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-lg);
}

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

.success__countdown {
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xl);
    font-style: italic;
}

.success__actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

/* ===== PAGE CONTENT ===== */
.page-content {
    margin-bottom: var(--spacing-2xl);
}

.page-content__title {
    font-size: var(--font-size-2xl);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.page-content__subtitle {
    font-size: var(--font-size-xl);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    color: var(--color-button);
}

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

.page-content__list {
    margin-bottom: var(--spacing-lg);
    padding-left: var(--spacing-xl);
}

.page-content__list li {
    position: relative;
    padding-left: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.page-content__list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    background-color: var(--color-button);
    border-radius: var(--radius-full);
}

.page-navigation {
    margin-top: var(--spacing-2xl);
    display: flex;
    justify-content: center;
}

/* ===== BRUTALIST DESIGN ELEMENTS ===== */
.brutalist-hover {
    animation: glitch 0.3s linear;
}

@keyframes glitch {
    0% {
        transform: translate(0);
    }
    20% {
        transform: translate(-5px, 5px);
    }
    40% {
        transform: translate(-5px, -5px);
    }
    60% {
        transform: translate(5px, 5px);
    }
    80% {
        transform: translate(5px, -5px);
    }
    100% {
        transform: translate(0);
    }
}

.section__image-container:nth-child(odd) {
    transform: translateY(var(--spacing-md));
}

.section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 10px;
    background: repeating-linear-gradient(
        45deg,
        var(--color-accent),
        var(--color-accent) 10px,
        var(--color-button) 10px,
        var(--color-button) 20px
    );
    z-index: var(--z-above);
    opacity: 0.5;
}

.section--intro::after,
.section--benefits::after,
.section--sessions::after,
.section--equipment::after,
.section--tips::after {
    content: '';
    position: absolute;
    width: 150px;
    height: 150px;
    background-color: var(--color-accent);
    opacity: 0.1;
    border-radius: var(--radius-lg);
    z-index: var(--z-below);
}

.section--intro::after {
    top: 20%;
    right: -75px;
    transform: rotate(30deg);
}

.section--benefits::after {
    bottom: 10%;
    left: -75px;
    transform: rotate(-15deg);
}

.section--sessions::after {
    top: 40%;
    right: -75px;
    transform: rotate(45deg);
}

.section--equipment::after {
    bottom: 30%;
    left: -75px;
    transform: rotate(-30deg);
}

.section--tips::after {
    top: 60%;
    right: -75px;
    transform: rotate(15deg);
}

/* ===== REVEAL ANIMATIONS ===== */
.reveal-active {
    opacity: 1;
    transform: translateY(0);
}

/* ===== RESPONSIVE STYLES ===== */
@media (min-width: 640px) {
    .section {
        padding: var(--spacing-3xl) var(--spacing-xl);
    }
    
    .hero__title {
        font-size: var(--font-size-4xl);
    }
    
    .footer__container {
        grid-template-columns: 2fr 3fr;
    }
    
    .footer__logo {
        align-items: flex-start;
        text-align: left;
    }
    
    .success__actions {
        flex-direction: row;
        justify-content: center;
    }
}

@media (min-width: 768px) {
    .nav__toggle {
        display: none;
    }
    
    .nav__list {
        position: static;
        width: auto;
        height: auto;
        background-color: transparent;
        display: flex;
        flex-direction: row;
        transform: none;
        gap: var(--spacing-lg);
    }
    
    .nav__item {
        margin: 0;
    }
    
    .nav__link {
        font-size: var(--font-size-base);
    }
    
    .section__container {
        align-items: center;
    }
    
    .sessions {
        gap: var(--spacing-3xl);
    }
    
    .session {
        grid-template-columns: 1fr 1fr;
        align-items: center;
    }
    
    .testimonials {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
    
    .benefits {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tips {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .equipment {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 1024px) {
    .hero__title {
        font-size: calc(var(--font-size-4xl) * 1.2);
    }
       
    .sessions {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-xl);
    }
    
    .session {
        grid-template-columns: 1fr;
    }
    
    .session__image {
        height: 250px;
    }
}

@media (min-width: 1280px) {
    .section {
        padding: var(--spacing-4xl) var(--spacing-xl);
    }
    
    .hero__title {
        font-size: calc(var(--font-size-4xl) * 1.5);
    }
}

/* ===== PRINT STYLES ===== */
@media print {
    body {
        color: #000;
        background: #fff;
    }
    
    .header, .footer, .back-to-top {
        display: none;
    }
    
    .section {
        padding: 1cm;
        page-break-inside: avoid;
    }
    
    .section__image-container {
        display: none;
    }
    
    .section__container {
        grid-template-columns: 1fr;
    }
    
    a[href]::after {
        content: " (" attr(href) ")";
    }
}