/* Facebook-inspired styling */
:root {
    --fb-blue: #1877f2;
    --fb-blue-hover: #166fe5;
    --fb-bg: #f0f2f5;
    --fb-white: #ffffff;
    --fb-text: #1c1e21;
    --fb-secondary-text: #65676b;
    --fb-gray: #e4e6eb;
    --fb-border: #ced0d4;
    --header-height: 56px;
    --max-width: 1200px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Segoe UI, Helvetica, Arial, sans-serif;
    background-color: var(--fb-bg);
    color: var(--fb-text);
    line-height: 1.5;
}

a {
    text-decoration: none;
    color: var(--fb-blue);
    transition: color 0.2s;
}

a:hover {
    text-decoration: underline;
}

ul {
    list-style: none;
}

h1, h2, h3, h4 {
    color: #1c1e21;
}

/* Header */
header {
    background-color: var(--fb-white);
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    position: fixed;
    top: 0;
    width: 100%;
    box-shadow: 0 2px 4px rgba(0,0,0,0.08);
    z-index: 1000;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-container img {
    height: 40px;
    width: 40px;
}

.brand-name {
    font-size: 24px;
    font-weight: 800;
    color: var(--fb-blue);
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: 8px;
}

.nav-links a {
    color: var(--fb-secondary-text);
    font-weight: 600;
    padding: 8px 16px;
    border-radius: 8px;
    text-decoration: none;
}

.nav-links a:hover {
    background-color: var(--fb-gray);
}

.nav-links a.active {
    color: var(--fb-blue);
    position: relative;
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--fb-blue);
}

/* Hero Section */
.hero {
    margin-top: var(--header-height);
    padding: 100px 20px;
    background: linear-gradient(135deg, #ffffff 0%, #e7f3ff 100%);
    text-align: center;
}

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

.hero h1 {
    font-size: 48px;
    line-height: 1.1;
    margin-bottom: 24px;
    font-weight: 700;
}

.hero p {
    font-size: 20px;
    color: var(--fb-secondary-text);
    margin-bottom: 32px;
}

.hero-btns {
    display: flex;
    justify-content: center;
    gap: 16px;
}

.btn-primary {
    background-color: var(--fb-blue);
    color: white !important;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 700;
    font-size: 16px;
}

.btn-primary:hover {
    background-color: var(--fb-blue-hover);
    text-decoration: none;
}

.btn-secondary {
    background-color: var(--fb-gray);
    color: var(--fb-text) !important;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 700;
    font-size: 16px;
}

.btn-secondary:hover {
    background-color: #d8dadf;
    text-decoration: none;
}

/* Main Layout */
main {
    max-width: var(--max-width);
    margin: 40px auto;
    padding: 0 20px;
}

section {
    background: var(--fb-white);
    border-radius: 8px;
    padding: 40px;
    margin-bottom: 30px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.section-header {
    margin-bottom: 30px;
}

.section-header h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 10px;
}

.divider {
    height: 4px;
    width: 50px;
    background-color: var(--fb-blue);
    border-radius: 2px;
}

/* Grid & Cards */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.card {
    border: 1px solid var(--fb-gray);
    padding: 24px;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.card:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    transform: translateY(-2px);
}

.card h3 {
    margin-bottom: 12px;
    font-size: 20px;
}

.card p {
    color: var(--fb-secondary-text);
    font-size: 14px;
}

/* Structure Grid */
.structure-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.structure-item {
    text-align: center;
}

.icon-circle {
    width: 64px;
    height: 64px;
    background-color: var(--fb-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.icon-circle svg {
    width: 32px;
    height: 32px;
}

.structure-item h4 {
    margin-bottom: 12px;
}

/* Contact Page Specific */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 40px;
}

.info-item {
    display: flex;
    gap: 15px;
    margin-bottom: 24px;
}

.info-icon {
    width: 40px;
    height: 40px;
    background: #e7f3ff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.info-icon svg {
    width: 20px;
    height: 20px;
    fill: var(--fb-blue);
}

.contact-form-container {
    background: var(--fb-bg);
    padding: 30px;
    border-radius: 12px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
}

.form-input {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--fb-border);
    border-radius: 6px;
    font-size: 16px;
}

.form-input:focus {
    outline: none;
    border-color: var(--fb-blue);
    box-shadow: 0 0 0 2px #e7f3ff;
}

.btn-submit {
    width: 100%;
    background: var(--fb-blue);
    color: white;
    border: none;
    padding: 14px;
    border-radius: 6px;
    font-weight: 700;
    font-size: 16px;
    cursor: pointer;
}

/* FAQ Section */
.faq-item {
    border-bottom: 1px solid var(--fb-gray);
    padding: 20px 0;
}

.faq-question {
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--fb-text);
}

.faq-answer {
    color: var(--fb-secondary-text);
}

/* Privacy Page Specific */
.privacy-content h3 {
    margin: 30px 0 15px;
    border-left: 4px solid var(--fb-blue);
    padding-left: 15px;
}

.privacy-content p, .privacy-content ul {
    margin-bottom: 15px;
    color: #4b4d50;
}

.privacy-content ul {
    padding-left: 20px;
}

.privacy-content li {
    margin-bottom: 8px;
}

/* Footer */
footer {
    background: var(--fb-white);
    padding: 60px 20px 20px;
    margin-top: 60px;
    border-top: 1px solid var(--fb-gray);
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-column h4 {
    margin-bottom: 20px;
    font-weight: 700;
}

.footer-column a {
    display: block;
    color: var(--fb-secondary-text);
    margin-bottom: 10px;
}

.footer-column p {
    color: var(--fb-secondary-text);
    margin-bottom: 10px;
    font-size: 14px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--fb-gray);
    color: var(--fb-secondary-text);
    font-size: 13px;
}

/* Responsive */
@media (max-width: 992px) {
    .structure-grid {
        grid-template-columns: 1fr;
    }
    .footer-container {
        grid-template-columns: 1fr 1fr;
    }
    .contact-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .nav-links {
        display: none;
    }
    .hero h1 {
        font-size: 32px;
    }
    .footer-container {
        grid-template-columns: 1fr;
    }
}