/* =========================
   RESET & BASE
========================= */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI",
        Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: #111;
    background-color: #fff;
}

/* =========================
   CONTAINER
========================= */
.container {
    width: 100%;
    max-width: 1200px;
    padding: 0 1.5rem;
    margin: 0 auto;
}

/* =========================
   HEADER & NAV
========================= */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: #fff;
    border-bottom: 1px solid #e5e5e5;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
    color: inherit;
}

.brand img {
    height: 28px;
    width: auto;
}

.brand span {
    font-weight: 600;
    letter-spacing: 0.08em;
    font-size: 0.85rem;
}

/* Navigation */
.main-nav {
    display: flex;
    gap: 2rem;
}

.main-nav a {
    text-decoration: none;
    color: #111;
    font-size: 0.9rem;
}

.main-nav a:hover {
    opacity: 0.6;
}

/* =========================
   MOBILE NAV (CSS ONLY)
========================= */
#nav-toggle {
    display: none;
}

.nav-toggle-label {
    display: none;
    cursor: pointer;
}

.nav-toggle-label span,
.nav-toggle-label span::before,
.nav-toggle-label span::after {
    display: block;
    width: 22px;
    height: 2px;
    background: #111;
    position: relative;
}

.nav-toggle-label span::before,
.nav-toggle-label span::after {
    content: "";
    position: absolute;
    left: 0;
}

.nav-toggle-label span::before {
    top: -6px;
}

.nav-toggle-label span::after {
    top: 6px;
}

@media (max-width: 768px) {
    .nav-toggle-label {
        display: block;
    }

    .main-nav {
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        gap: 1.5rem;
        padding: 1.5rem;
        border-bottom: 1px solid #e5e5e5;
        display: none;
    }

    #nav-toggle:checked ~ .main-nav {
        display: flex;
    }
}

/* =========================
   SECTIONS
========================= */
section {
    padding: 5rem 0;
}

.section-soft {
    background: #f7f7f7;
}

/* =========================
   FOOTER
========================= */
.footer {
    padding: 3rem 1.5rem;
    text-align: center;
    font-size: 0.85rem;
    color: #666;
    border-top: 1px solid #e5e5e5;
}

/* =========================
   GLOBAL IMAGES
========================= */
img {
    max-width: 100%;
    height: auto;
    display: block;
}