/* ==========================================
   Robust Trading Systems LLC - Stylesheet
   ========================================== */

:root {
    --blue: #0072FF;
    --dark: #1a1a2e;
    --darker: #0f0f23;
    --white: #FFFFFF;
    --light-gray: #f5f5f5;
    --gray: #666;
    --text: #333;
    --max-width: 1100px;
}

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

body {
    font-family: 'Lato', sans-serif;
    color: var(--text);
    line-height: 1.714;
    background: var(--white);
}

a {
    color: var(--blue);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

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

/* Header */
.header {
    background: var(--darker);
    padding: 0 20px;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-size: 20px;
    font-weight: 700;
    color: var(--white);
    white-space: nowrap;
}

.nav-links {
    display: flex;
    gap: 6px;
    align-items: center;
}

.nav-links a {
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 400;
    color: rgba(255,255,255,0.85);
    border-radius: 6px;
    transition: background 0.2s, color 0.2s;
    text-decoration: none;
}

.nav-links a:hover,
.nav-links a.active {
    background: rgba(255,255,255,0.1);
    color: var(--white);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
}

/* Hero */
.hero {
    background: linear-gradient(135deg, var(--darker) 0%, var(--dark) 50%, #16213e 100%);
    color: var(--white);
    text-align: center;
    padding: 80px 20px;
}

.hero-inner {
    max-width: var(--max-width);
    margin: 0 auto;
}

.hero h1 {
    font-size: 52px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero p {
    font-size: 18px;
    color: rgba(255,255,255,0.85);
    max-width: 700px;
    margin: 0 auto;
}

/* Banners */
.banners {
    background: var(--white);
    padding: 40px 20px;
}

.banners-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
    flex-wrap: wrap;
}

.banners a img {
    max-height: 80px;
    width: auto;
    transition: opacity 0.2s;
}

.banners a:hover img {
    opacity: 0.85;
}

/* Feature Cards */
.features {
    background: var(--light-gray);
    padding: 60px 20px;
}

.features-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}

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

.feature-content {
    padding: 20px;
    text-align: center;
}

.feature-content p {
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
}

/* Newsletter */
.newsletter {
    background: var(--white);
    padding: 60px 20px;
    text-align: center;
}

.newsletter-inner {
    max-width: 600px;
    margin: 0 auto;
}

.newsletter h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--dark);
}

.newsletter > .newsletter-inner > p {
    font-size: 16px;
    color: var(--gray);
    margin-bottom: 30px;
}

.signup-form .form-row {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
}

.signup-form .form-group {
    flex: 1;
    text-align: left;
}

.signup-form label {
    display: block;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text);
}

.signup-form input {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 15px;
    font-family: 'Lato', sans-serif;
    transition: border-color 0.2s;
}

.signup-form input:focus {
    outline: none;
    border-color: var(--blue);
}

.btn-primary {
    background: var(--blue);
    color: var(--white);
    border: none;
    padding: 12px 32px;
    font-size: 16px;
    font-family: 'Lato', sans-serif;
    font-weight: 400;
    border-radius: 999px;
    cursor: pointer;
    transition: opacity 0.2s;
}

.btn-primary:hover {
    opacity: 0.9;
}

/* Inquiry */
.inquiry {
    background: var(--light-gray);
    padding: 60px 20px;
}

.inquiry-inner {
    max-width: 700px;
    margin: 0 auto;
    background: var(--white);
    padding: 40px 50px;
    border-radius: 10px;
    box-shadow: 0 -10px 0 0 var(--blue);
}

.inquiry h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--dark);
}

.inquiry-inner > p {
    font-size: 16px;
    color: var(--gray);
    margin-bottom: 10px;
}

.inquiry-inner > p.highlight {
    font-weight: 700;
    color: var(--text);
    margin-bottom: 30px;
}

.inquiry-form .form-row {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
}

.inquiry-form .form-group {
    flex: 1;
    text-align: left;
    margin-bottom: 16px;
}

.inquiry-form label {
    display: block;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text);
}

.inquiry-form input,
.inquiry-form textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 15px;
    font-family: 'Lato', sans-serif;
    transition: border-color 0.2s;
    resize: vertical;
}

.inquiry-form input:focus,
.inquiry-form textarea:focus {
    outline: none;
    border-color: var(--blue);
}

/* Disclosures */
.disclosures {
    background: var(--white);
    padding: 40px 20px;
}

.disclosures-inner {
    max-width: var(--max-width);
    margin: 0 auto;
}

.disclosures h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--dark);
}

.disclosures p {
    font-size: 13px;
    color: var(--gray);
    margin-bottom: 12px;
    line-height: 1.7;
}

.disclosures strong {
    color: var(--text);
}

/* Footer */
.footer {
    background: var(--darker);
    color: rgba(255,255,255,0.7);
    padding: 30px 20px;
    text-align: center;
}

.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
}

.footer p {
    font-size: 14px;
    margin-bottom: 12px;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.footer-links a {
    color: rgba(255,255,255,0.7);
    font-size: 14px;
    text-decoration: none;
}

.footer-links a:hover {
    color: var(--white);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--darker);
        flex-direction: column;
        padding: 10px 20px 20px;
        gap: 2px;
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links a {
        padding: 12px 16px;
    }

    .hero h1 {
        font-size: 32px;
    }

    .hero p {
        font-size: 16px;
    }

    .features-inner {
        grid-template-columns: 1fr;
    }

    .signup-form .form-row,
    .inquiry-form .form-row {
        flex-direction: column;
        gap: 0;
    }

    .inquiry-inner {
        padding: 30px 20px;
    }

    .banners-inner {
        flex-direction: column;
        gap: 20px;
    }
}