/* Container */
.tc-container {
    width: 100%;
    max-width: var(--tc-container-max);
    margin: 0 auto;
    padding: 0 var(--tc-container-px);
}

.tc-container--narrow {
    max-width: var(--tc-container-narrow);
}

/* Sections */
.tc-section {
    padding: var(--tc-section-py) 0;
}

.tc-section--dark {
    background: var(--tc-black);
    color: var(--tc-text-light);
}

.tc-section--dark h2,
.tc-section--dark h3,
.tc-section--dark h4 {
    color: var(--tc-white);
}

.tc-section--dark .tc-lead {
    color: var(--tc-text-muted-light);
}

.tc-section--dark .tc-subtitle {
    color: var(--tc-blue-light);
}

.tc-section--gray {
    background: #f8fafc;
}

/* Hero */
.tc-hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    background: var(--tc-gradient-hero);
    color: var(--tc-text-light);
    padding: 8rem 0 6rem;
    position: relative;
    overflow: hidden;
}

.tc-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 200%;
    background: radial-gradient(
        ellipse, rgba(37,99,235,0.08) 0%,
        transparent 70%
    );
    pointer-events: none;
}

.tc-hero h1 {
    color: var(--tc-white);
    font-size: var(--tc-text-6xl);
    margin-bottom: 1.5rem;
}

.tc-hero .tc-lead {
    color: var(--tc-text-muted-light);
    font-size: var(--tc-text-xl);
    margin-bottom: 2.5rem;
    max-width: 50ch;
}

.tc-hero--sm {
    min-height: 40vh;
    padding: 7rem 0 4rem;
}

.tc-hero--sm h1 {
    font-size: var(--tc-text-4xl);
}

/* Navigation */
.tc-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    transition: background var(--tc-transition),
        box-shadow var(--tc-transition),
        padding var(--tc-transition);
}

.tc-nav--scrolled {
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(255,255,255,0.05);
    padding: 0.6rem 0;
}

.tc-nav__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--tc-container-max);
    margin: 0 auto;
    padding: 0 var(--tc-container-px);
}

.tc-nav__brand {
    font-family: var(--tc-font-mono);
    font-size: var(--tc-text-lg);
    font-weight: var(--tc-weight-bold);
    color: var(--tc-white);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tc-nav__brand:hover {
    color: var(--tc-white);
}

.tc-nav__brand svg,
.tc-nav__brand img {
    height: 28px;
    width: auto;
}

.tc-nav__links {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

.tc-nav__links a {
    font-size: var(--tc-text-sm);
    font-weight: var(--tc-weight-medium);
    color: var(--tc-text-muted-light);
    text-decoration: none;
    transition: color var(--tc-transition);
    letter-spacing: 0.01em;
}

.tc-nav__links a:hover,
.tc-nav__links a.active {
    color: var(--tc-white);
}

.tc-nav__cta {
    font-size: var(--tc-text-sm);
    font-weight: var(--tc-weight-medium);
    color: var(--tc-white);
    background: var(--tc-blue);
    padding: 0.5rem 1.25rem;
    border-radius: var(--tc-radius-sm);
    text-decoration: none;
    transition: background var(--tc-transition);
}

.tc-nav__cta:hover {
    background: var(--tc-blue-dark);
    color: var(--tc-white);
}

.tc-nav__login {
    font-size: var(--tc-text-sm);
    font-weight: var(--tc-weight-medium);
    color: var(--tc-text-muted-light);
    border: 1px solid rgba(255,255,255,0.2);
    padding: 0.5rem 1.25rem;
    border-radius: var(--tc-radius-sm);
    text-decoration: none;
    transition: all var(--tc-transition);
}

.tc-nav__login:hover {
    border-color: var(--tc-white);
    color: var(--tc-white);
}

.tc-nav__toggle {
    display: none;
    background: none;
    border: none;
    color: var(--tc-white);
    cursor: pointer;
    padding: 0.5rem;
}

/* Footer */
.tc-footer {
    background: var(--tc-black);
    color: var(--tc-text-muted-light);
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--tc-border-dark);
}

.tc-footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.tc-footer__brand {
    font-family: var(--tc-font-mono);
    font-size: var(--tc-text-lg);
    font-weight: var(--tc-weight-bold);
    color: var(--tc-white);
    margin-bottom: 1rem;
}

.tc-footer__desc {
    font-size: var(--tc-text-sm);
    line-height: var(--tc-leading-relaxed);
    color: var(--tc-text-muted);
    max-width: 30ch;
}

.tc-footer h5 {
    font-size: var(--tc-text-sm);
    font-weight: var(--tc-weight-semibold);
    color: var(--tc-text-light);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.tc-footer__links {
    list-style: none;
}

.tc-footer__links li {
    margin-bottom: 0.5rem;
}

.tc-footer__links a {
    font-size: var(--tc-text-sm);
    color: var(--tc-text-muted);
    text-decoration: none;
    transition: color var(--tc-transition);
}

.tc-footer__links a:hover {
    color: var(--tc-white);
}

.tc-footer__bottom {
    border-top: 1px solid var(--tc-border-dark);
    padding-top: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--tc-text-xs);
    color: var(--tc-text-muted);
}