/* ===== HEADER / NAV ===== */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: #ffffff;
    border-bottom: 1px solid #e6edf3;
    color: #1a2a3a;
    padding: 10px 0;
    font-size: 20px;
    letter-spacing: 0.5px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
    z-index: 1000;
}

.header-inner {
    width: 100%;
    max-width: 1100px;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-inner > div {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

header span {
    display: block;
    font-size: 14px;
    opacity: 0.6;
    margin-left: 0;
    margin-top: 0;
    line-height: 1;
}

.header-inner > div {
    font-size: 22px;
    font-weight: 600;
    margin: 0;
}

nav a {
    color: #1a2a3a;
    text-decoration: none;
    margin-left: 24px;
    font-size: 13px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

nav a:hover {
    opacity: 0.5;
}

nav a.contact-link {
    color: #4ea1ff !important;
    font-weight: 600;
}

/* ===== BREADCRUMBS ===== */
.breadcrumbs {
    background: #0f1620;
    padding: 2px 20px;
    line-height: 1.2;
    font-size: 10px;
    letter-spacing: 0.5px;
    max-width: 1100px;
    margin: 8px auto 0 auto;
}

.breadcrumbs a {
    text-decoration: none;
    color: #4ea1ff;
}

.breadcrumbs span {
    color: #7d8a97;
}

/* prevent content hiding behind fixed header */
body {
    padding-top: 48px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: #0b0f14;
    color: #e6edf3;
    line-height: 1.6;
}

h1, h2, h3 {
    margin: 0 0 15px 0;
    font-weight: 600;
}

h1 {
    font-size: 48px;
    color: #e6edf3;
}

h2 {
    font-size: 28px;
    color: #8fa3b8;
}

p {
    margin-bottom: 20px;
    color: #9fb0c0;
}

/* ===== LAYOUT ===== */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 40px 20px;
}

.section {
    margin-top: 60px;
}

/* ===== HERO / INTRO ===== */
.hero {
    display: flex;
    align-items: center;
    gap: 40px;
}

.hero img {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    border: 2px solid #d9e2ec;
}

.hero-text {
    flex: 1;
}

/* ===== "WHY LEAP VELOCITY" BOX ===== */
.highlight-box {
    margin-top: 25px;
    padding: 20px 25px;
    border-left: 4px solid #4ea1ff;
    background: #0f1620;
    font-style: italic;
    color: #9ecbff;
    border-radius: 8px;
}

/* ===== GRID SYSTEM ===== */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

/* ===== CARDS ===== */
.card {
    background: #111821;
    padding: 30px;
    border-radius: 12px;
    border-left: 4px solid #4ea1ff;
    transition: all 0.2s ease;
}

.card:hover {
    transform: translateY(-4px);
    background: #16202b;
}

/* ===== VARIATION FOR PROBLEMS ===== */
.card.problem {
    background: #0e141a;
    border-left: 4px solid #3a6ea5;
    color: #c2ccd6;
}

/* ===== CONTACT ===== */
.contact {
    margin-top: 60px;
    padding: 30px;
    background: #0f1620;
    border-radius: 10px;
    text-align: center;
}

.contact a {
    color: #4ea1ff;
    text-decoration: none;
}

.contact a:hover {
    text-decoration: underline;
}