/* ==========================================================================
   Xmouva - CSS Main Stylesheet
   Institutional Knowledge Portal - Eye Gymnastics
   ========================================================================== */

:root {
    --primary-color: #0F4C5C;
    --secondary-bg: #F7F7F7;
    --light-gray: #E0E0E0;
    --muted-gold: #B59247;
    --deep-burgundy: #7C0A02;
    --dark-text: #333333;
    --medium-text: #555555;
    --light-text: #999999;
    --white: #FFFFFF;
    --spacing-unit: 8px;
    --border-radius: 4px;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: 'Open Sans', 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--dark-text);
    background-color: var(--white);
}

/* Typography */
h1, h2 {
    font-family: 'Montserrat', 'Arial', sans-serif;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: calc(var(--spacing-unit) * 3);
    text-transform: none;
}

h1 {
    font-size: 2.5rem;
    line-height: 1.2;
}

h2 {
    font-size: 2rem;
    line-height: 1.3;
    margin-top: calc(var(--spacing-unit) * 4);
}

h3 {
    font-family: 'Open Sans', sans-serif;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: calc(var(--spacing-unit) * 2);
}

p {
    margin-bottom: calc(var(--spacing-unit) * 2);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--medium-text);
}

ul, ol {
    margin-bottom: calc(var(--spacing-unit) * 2);
    margin-left: calc(var(--spacing-unit) * 3);
}

li {
    margin-bottom: calc(var(--spacing-unit) * 1.5);
    color: var(--medium-text);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--muted-gold);
}

.lead {
    font-size: 1.25rem;
    color: var(--medium-text);
    font-weight: 300;
}

/* Container */
.container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 calc(var(--spacing-unit) * 4);
}

/* Header */
.header {
    background-color: var(--primary-color);
    color: var(--white);
    padding: calc(var(--spacing-unit) * 3) 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: calc(var(--spacing-unit) * 4);
}

.logo h1 {
    font-size: 2rem;
    color: var(--white);
    margin-bottom: calc(var(--spacing-unit) * 0.5);
}

.logo-subtitle {
    font-size: 0.9rem;
    color: var(--light-gray);
    margin: 0;
}

.navigation ul {
    display: flex;
    list-style: none;
    margin: 0;
    gap: calc(var(--spacing-unit) * 3);
}

.navigation a {
    color: var(--light-gray);
    font-size: 0.95rem;
    transition: color 0.3s ease;
    position: relative;
}

.navigation a:hover,
.navigation a.active {
    color: var(--muted-gold);
}

.navigation a.active::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--muted-gold);
}

/* Main Content */
.main-content {
    flex: 1;
}

/* Hero Section */
.hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: calc(var(--spacing-unit) * 6);
    padding: calc(var(--spacing-unit) * 8) 0;
}

.hero-image {
    width: 100%;
    overflow: hidden;
    border-radius: var(--border-radius);
}

.hero-img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    display: block;
}

.hero-content h1 {
    font-size: 2.8rem;
    margin-bottom: calc(var(--spacing-unit) * 3);
}

.hero-content p {
    font-size: 1.1rem;
    margin-bottom: calc(var(--spacing-unit) * 4);
    color: var(--medium-text);
}

/* Hero Text Section */
.hero-text {
    background-color: var(--primary-color);
    color: var(--white);
    padding: calc(var(--spacing-unit) * 8) 0;
}

.hero-text h1 {
    color: var(--white);
    font-size: 2.5rem;
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.hero-text .lead {
    color: var(--light-gray);
    font-size: 1.2rem;
}

/* Sections */
.section {
    padding: calc(var(--spacing-unit) * 8) 0;
}

.section h2 {
    text-align: left;
    margin-bottom: calc(var(--spacing-unit) * 4);
}

/* Section Content */
.section-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: calc(var(--spacing-unit) * 6);
    align-items: center;
}

.section-content.reverse {
    grid-template-columns: 1fr 1fr;
    direction: rtl;
}

.section-content.reverse > * {
    direction: ltr;
}

.text-column {
    padding: calc(var(--spacing-unit) * 2) 0;
}

.image-column {
    width: 100%;
}

.section-img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    display: block;
}

/* Cards Grid */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: calc(var(--spacing-unit) * 4);
}

.card {
    background-color: var(--secondary-bg);
    padding: calc(var(--spacing-unit) * 4);
    border-radius: var(--border-radius);
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

.card h3 {
    margin-top: calc(var(--spacing-unit) * 2);
}

.card-image {
    width: 100%;
    overflow: hidden;
    border-radius: var(--border-radius);
}

.card-img-small {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

/* Values Grid */
.values-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: calc(var(--spacing-unit) * 4);
}

.value-card {
    background-color: var(--secondary-bg);
    padding: calc(var(--spacing-unit) * 4);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--muted-gold);
}

.value-card h3 {
    margin-top: 0;
}

/* Content List */
.content-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: calc(var(--spacing-unit) * 4);
}

.list-item {
    padding: calc(var(--spacing-unit) * 3);
    border-bottom: 1px solid var(--light-gray);
}

.list-item h3 {
    margin-top: 0;
}

/* Blog Grid */
.blog-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: calc(var(--spacing-unit) * 4);
}

.blog-card {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: calc(var(--spacing-unit) * 3);
    padding: calc(var(--spacing-unit) * 3);
    background-color: var(--secondary-bg);
    border-radius: var(--border-radius);
    transition: box-shadow 0.3s ease;
}

.blog-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.blog-image {
    width: 100%;
    overflow: hidden;
    border-radius: var(--border-radius);
}

.blog-img-small {
    width: 100%;
    height: 150px;
    object-fit: cover;
    display: block;
}

.blog-content h2 {
    margin-top: 0;
    font-size: 1.5rem;
}

.blog-content a {
    display: inline-block;
}

/* Documentation Categories */
.doc-categories {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: calc(var(--spacing-unit) * 4);
}

.category {
    background-color: var(--secondary-bg);
    padding: calc(var(--spacing-unit) * 4);
    border-radius: var(--border-radius);
}

.category h3 {
    margin-top: 0;
}

/* Article Content */
.article-content {
    max-width: 800px;
    margin: 0 auto;
}

/* Balance List */
.balance-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: calc(var(--spacing-unit) * 2);
    background-color: var(--secondary-bg);
    padding: calc(var(--spacing-unit) * 4);
    border-radius: var(--border-radius);
    margin: calc(var(--spacing-unit) * 4) 0;
}

.balance-item {
    padding: calc(var(--spacing-unit) * 2);
    padding-left: calc(var(--spacing-unit) * 4);
    position: relative;
    color: var(--medium-text);
}

.balance-item::before {
    content: '✓';
    position: absolute;
    left: calc(var(--spacing-unit) * 1.5);
    color: var(--muted-gold);
    font-weight: bold;
}

/* Limitations Box */
.limitations-box {
    background-color: #FCFBF7;
    border-left: 4px solid var(--deep-burgundy);
    padding: calc(var(--spacing-unit) * 4);
    border-radius: var(--border-radius);
    margin: calc(var(--spacing-unit) * 4) 0;
}

.limitations-box h2,
.limitations-box h3 {
    color: var(--deep-burgundy);
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: calc(var(--spacing-unit) * 6);
    align-items: start;
}

.contact-form-wrapper {
    background-color: var(--secondary-bg);
    padding: calc(var(--spacing-unit) * 4);
    border-radius: var(--border-radius);
}

.contact-form {
    display: grid;
    gap: calc(var(--spacing-unit) * 3);
}

.form-group {
    display: grid;
}

.form-group label {
    margin-bottom: calc(var(--spacing-unit) * 1);
    font-weight: 600;
    color: var(--primary-color);
}

.form-group input,
.form-group textarea {
    padding: calc(var(--spacing-unit) * 2);
    border: 1px solid var(--light-gray);
    border-radius: var(--border-radius);
    font-family: 'Open Sans', sans-serif;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

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

/* Contact Info Grid */
.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: calc(var(--spacing-unit) * 4);
}

.info-card {
    background-color: var(--secondary-bg);
    padding: calc(var(--spacing-unit) * 4);
    border-radius: var(--border-radius);
    text-align: center;
}

.info-card h3 {
    margin-top: 0;
}

/* CTA Section */
.cta-section {
    background-color: var(--primary-color);
    color: var(--white);
    text-align: center;
    padding: calc(var(--spacing-unit) * 8);
}

.cta-section h2 {
    color: var(--white);
    margin-bottom: calc(var(--spacing-unit) * 3);
}

.cta-section p {
    color: var(--light-gray);
    font-size: 1.1rem;
    margin-bottom: calc(var(--spacing-unit) * 4);
}

/* Thank You Section */
.thank-you-section {
    background-color: var(--secondary-bg);
    padding: calc(var(--spacing-unit) * 8);
}

.thank-you-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.thank-you-content h1 {
    color: var(--primary-color);
    margin-bottom: calc(var(--spacing-unit) * 3);
}

.thank-you-actions {
    display: flex;
    gap: calc(var(--spacing-unit) * 2);
    justify-content: center;
    margin-top: calc(var(--spacing-unit) * 4);
}

/* Policy Section */
.policy-section {
    background-color: var(--secondary-bg);
}

.policy-content {
    max-width: 900px;
    margin: 0 auto;
}

.policy-content ul {
    list-style-position: inside;
}

/* Disclaimer Section */
.disclaimer-section {
    background-color: var(--secondary-bg);
}

.disclaimer-content {
    max-width: 900px;
    margin: 0 auto;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: calc(var(--spacing-unit) * 2.5) calc(var(--spacing-unit) * 4);
    border: none;
    border-radius: var(--border-radius);
    font-family: 'Montserrat', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

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

.btn-primary:hover {
    background-color: #0a3543;
}

.btn-link {
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    padding: calc(var(--spacing-unit) * 2) calc(var(--spacing-unit) * 3);
}

.btn-link:hover {
    background-color: var(--primary-color);
    color: var(--white);
}

.btn-large {
    padding: calc(var(--spacing-unit) * 3) calc(var(--spacing-unit) * 6);
    font-size: 1.1rem;
}

/* Footer */
.footer {
    background-color: var(--primary-color);
    color: var(--light-gray);
    padding: calc(var(--spacing-unit) * 6) 0 calc(var(--spacing-unit) * 3);
    margin-top: calc(var(--spacing-unit) * 8);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: calc(var(--spacing-unit) * 4);
    margin-bottom: calc(var(--spacing-unit) * 4);
}

.footer-section h3 {
    color: var(--white);
    margin-bottom: calc(var(--spacing-unit) * 2);
    font-size: 1rem;
}

.footer-section p {
    color: var(--light-gray);
    font-size: 0.95rem;
    margin-bottom: calc(var(--spacing-unit) * 1.5);
}

.footer-section ul {
    list-style: none;
    margin: 0;
}

.footer-section li {
    margin-bottom: calc(var(--spacing-unit) * 1);
}

.footer-section a {
    color: var(--light-gray);
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--muted-gold);
}

.footer-bottom {
    border-top: 1px solid rgba(224, 224, 224, 0.2);
    padding-top: calc(var(--spacing-unit) * 3);
    text-align: center;
    color: var(--light-gray);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 calc(var(--spacing-unit) * 2);
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .header-content {
        flex-direction: column;
        gap: calc(var(--spacing-unit) * 2);
    }

    .navigation ul {
        flex-wrap: wrap;
        gap: calc(var(--spacing-unit) * 2);
        justify-content: center;
    }

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

    .section-content,
    .section-content.reverse {
        grid-template-columns: 1fr;
        direction: ltr;
    }

    .section-content.reverse > * {
        direction: ltr;
    }

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

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

    .doc-categories {
        grid-template-columns: 1fr;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

    .contact-info-grid {
        grid-template-columns: 1fr;
    }

    .blog-card {
        grid-template-columns: 1fr;
    }

    .blog-img-small {
        height: 250px;
    }

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

    .balance-list {
        grid-template-columns: 1fr;
    }

    .thank-you-actions {
        flex-direction: column;
    }

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

@media (max-width: 480px) {
    h1 {
        font-size: 1.5rem;
    }

    h2 {
        font-size: 1.25rem;
    }

    .logo h1 {
        font-size: 1.5rem;
    }

    .navigation ul {
        gap: calc(var(--spacing-unit) * 1);
        font-size: 0.9rem;
    }

    .hero-content h1 {
        font-size: 1.8rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .info-card {
        text-align: left;
    }
}