/* ==========================================================================
   CSS Variables & Resets
   ========================================================================== */
:root {
    --color-bg: #124D4A;
    --color-bg-alt: #1C344D;
    --color-primary: #1A786E;
    --color-primary-hover: #145e56;
    --color-text: #F0F3F5;
    --color-text-dark: #313131;
    --color-white: #ffffff;
    --color-error: #e74c3c;
    --color-success: #2ecc71;

    --font-family: 'Nunito', system-ui, -apple-system, sans-serif;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: inherit;
    text-decoration: none;
}

.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ==========================================================================
   Typography
   ========================================================================== */
h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    line-height: 1.1;
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--color-white);
}

h2 {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    line-height: 1.3;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--color-white);
}

h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.badge {
    display: inline-block;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
}

.highlight-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
    background: rgba(255, 255, 255, 0.9);
    padding: 1rem;
    border-radius: var(--border-radius-sm);
    display: inline-block;
}

/* ==========================================================================
   Components
   ========================================================================== */
.btn {
    display: inline-block;
    border: none;
    border-radius: var(--border-radius);
    padding: 1rem 2rem;
    font-family: inherit;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    width: 100%;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
}

.btn-large {
    width: auto;
    min-width: 250px;
    padding: 1.25rem 3rem;
    font-size: 1.25rem;
}

/* Forms */
.form-card {
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    padding: 2.5rem;
    box-shadow: var(--shadow);
    color: var(--color-text-dark);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group select {
    width: 100%;
    padding: 1rem;
    border: 1px solid #ddd;
    border-radius: var(--border-radius-sm);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    background-color: #f9f9f9;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    background-color: #fff;
    box-shadow: 0 0 0 3px rgba(26, 120, 110, 0.1);
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.checkbox-group input[type="checkbox"] {
    margin-top: 5px;
    width: 18px;
    height: 18px;
    accent-color: var(--color-primary);
}

.checkbox-group label {
    font-size: 0.85rem;
    font-weight: 400;
    line-height: 1.4;
    color: #666;
}

.secure-notice {
    text-align: center;
    margin-top: 1rem;
    font-size: 0.85rem;
    color: #666;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

.alert {
    padding: 1rem;
    border-radius: var(--border-radius-sm);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.alert-error {
    background-color: rgba(231, 76, 60, 0.1);
    color: var(--color-error);
    border: 1px solid rgba(231, 76, 60, 0.3);
}

.alert-success {
    background-color: rgba(46, 204, 113, 0.1);
    color: var(--color-success);
    border: 1px solid rgba(46, 204, 113, 0.3);
}

/* ==========================================================================
   Layout Sections
   ========================================================================== */
.site-header {
    padding: 1.5rem 0;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 10;
}

.logo {
    height: 40px;
}

/* Hero Section */
.hero-section {
    padding: 8rem 0 5rem;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background-color: var(--color-bg);
    position: relative;
}

.header-image {
    width: 100%;
    max-width: 900px;
    height: auto;
    border-radius: var(--border-radius);
    margin: 0 auto 2.5rem;
    box-shadow: var(--shadow);
}

.hero-grid {
    display: flex;
    flex-direction: column;
    gap: 4rem;
    align-items: center;
    text-align: center;
}

.hero-content {
    max-width: 900px;
    align-items: center;
}

.event-details {
    text-align: left;
    display: inline-block;
    width: 100%;
    max-width: 600px;
    margin-top: 2rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-form-container {
    width: 100%;
    max-width: 600px;
}

.event-details {
    list-style: none;
    margin-top: 2rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.event-details li {
    margin-bottom: 0.8rem;
    font-size: 1.1rem;
}

.event-details li:last-child {
    margin-bottom: 0;
}

/* Expert Section */
.expert-section {
    padding: 6rem 0;
    background-color: var(--color-white);
    color: var(--color-text-dark);
}

.expert-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.expert-image-wrapper {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.expert-image {
    width: 100%;
    height: auto;
    aspect-ratio: 1/1;
    object-fit: cover;
    object-position: center 20%;
}

.expert-content h2 {
    color: var(--color-bg);
    margin-bottom: 0.5rem;
}

.expert-content h3 {
    color: var(--color-primary);
    font-size: 2rem;
}

/* Benefits Section */
.benefits-section {
    padding: 6rem 0;
    background-color: var(--color-bg-alt);
    text-align: center;
}

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

.benefits-list {
    list-style: none;
    text-align: left;
    margin-top: 3rem;
}

.benefits-list li {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    padding-left: 2.5rem;
    position: relative;
}

.benefits-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--color-primary);
    font-weight: bold;
    font-size: 1.5rem;
}

.benefits-image {
    width: 100%;
    margin: 3rem auto 0;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

/* CTA Section */
.cta-section {
    padding: 6rem 0;
    background-color: var(--color-bg);
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.cta-section h2 {
    margin-bottom: 1rem;
}

.cta-section p {
    font-size: 1.25rem;
    max-width: 600px;
    margin: 0 auto 1rem;
}

/* FAQ Section */
.faq-section {
    padding: 6rem 0;
    background-color: var(--color-white);
    color: var(--color-text-dark);
}

.faq-section h2 {
    color: var(--color-bg);
    text-align: center;
    margin-bottom: 3rem;
}

.faq-grid {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.faq-item h3 {
    color: var(--color-primary);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.faq-item p {
    color: #555;
    font-size: 1rem;
}

/* Footer */
.site-footer {
    padding: 2rem 0;
    background-color: var(--color-bg-alt);
    text-align: center;
    font-size: 0.9rem;
}

.footer-links a {
    opacity: 0.8;
    transition: opacity 0.3s;
    margin: 0 0.5rem;
}

.footer-links a:hover {
    opacity: 1;
    text-decoration: underline;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 992px) {

    .hero-grid,
    .expert-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .hero-section {
        padding-top: 6rem;
    }

    .hero-content {
        text-align: center;
    }

    .event-details {
        text-align: left;
    }

    .expert-image-wrapper {
        max-width: 500px;
        margin: 0 auto;
    }

    .expert-content {
        text-align: center;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.2rem;
    }

    h2 {
        font-size: 1.8rem;
    }

    .form-card {
        padding: 1.5rem;
    }

    .btn {
        padding: 0.8rem 1.5rem;
    }

    .hero-section {
        padding: 6rem 0 3rem;
        min-height: auto;
    }

    .expert-section,
    .benefits-section,
    .cta-section,
    .faq-section {
        padding: 3rem 0;
    }
}