/* Navigation — Light & Clean */
:root {
    --mobile-breakpoint: 768px;
    --navigation-bg: #ffffff;
    --primary-color: #e07a2f;
    --primary-color-rgb: 224, 122, 47;
    --primary-hover: #c56a22;
    --text-color-primary: #2e2417;
    --text-color-secondary: #6b5744;
    --border-color: #ebe3d7;
    --container-max-width: 1100px;
    --spacing-md: 20px;
    --spacing-lg: 30px;
    --hamburger-touch-target: 44px;
    --hamburger-padding: 8px;
    --hamburger-line-width: 22px;
    --hamburger-line-height: 2px;
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
}

.navigation {
    position: sticky;
    top: 0;
    z-index: 200;
    padding: 12px var(--spacing-md);
    background: #ffffff;
    border-bottom: 1.5px solid var(--border-color);
    box-shadow: 0 1px 3px rgba(46, 36, 23, 0.04);
}

.navigation-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: var(--container-max-width);
    margin: 0 auto;
    width: 100%;
}

.nav-logo { flex-shrink: 0; }
.logo-link { display: block; text-decoration: none; }

.nav-logo-image {
    height: 40px;
    max-width: 200px;
    width: auto;
    object-fit: contain;
    transition: opacity 0.2s;
}

.logo-link:hover .nav-logo-image { opacity: 0.8; }

.hamburger-menu {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: var(--hamburger-touch-target);
    height: var(--hamburger-touch-target);
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--hamburger-padding);
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    z-index: 1001;
    border-radius: 10px;
    transition: background 0.2s;
}

.hamburger-line {
    width: var(--hamburger-line-width);
    height: var(--hamburger-line-height);
    background: var(--text-color-primary);
    border-radius: 2px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: center;
}

.hamburger-menu:hover { background: rgba(var(--primary-color-rgb), 0.08); }
.hamburger-menu:hover .hamburger-line { background: var(--primary-color); }
.hamburger-menu.active .hamburger-line:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger-menu.active .hamburger-line:nth-child(2) { opacity: 0; }
.hamburger-menu.active .hamburger-line:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.nav-menu { display: block; flex-shrink: 0; }

.nav-links {
    display: flex;
    gap: 2px;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--text-color-secondary);
    font-family: var(--font-primary);
    font-weight: var(--font-weight-medium);
    font-size: 0.875rem;
    padding: 7px 14px;
    border-radius: 10px;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.nav-icon { display: inline-flex; align-items: center; line-height: 1; }
.nav-icon svg { width: 16px; height: 16px; stroke: currentColor; }

.nav-link:hover {
    background: #fff4eb;
    color: var(--primary-color);
}

/* Mobile */
@media (max-width: 768px) {
    .navigation { padding: 10px var(--spacing-md); }
    .navigation-container { position: relative; }
    .nav-logo-image { height: 34px; max-width: 170px; }

    .navigation .hamburger-menu {
        display: flex;
        position: absolute; right: 0; top: 50%; transform: translateY(-50%);
    }

    .nav-menu {
        position: fixed; top: 0; left: 0; right: 0; bottom: 0;
        background: rgba(255, 252, 247, 0.97);
        z-index: 1000;
        display: flex; align-items: center; justify-content: center;
        transform: translateX(100%);
        transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    }

    @supports (backdrop-filter: blur(16px)) {
        .nav-menu { background: rgba(255, 252, 247, 0.9); backdrop-filter: blur(16px); }
    }

    .nav-menu.active { transform: translateX(0); }

    .nav-links { flex-direction: column; gap: 12px; padding: var(--spacing-lg); }

    .nav-link {
        font-size: 1rem;
        font-weight: var(--font-weight-semibold);
        padding: 14px 28px;
        border: 1.5px solid var(--border-color);
        background: white;
        color: var(--text-color-primary);
        border-radius: 14px;
        min-width: 200px; min-height: 44px;
        justify-content: center;
        gap: 8px;
        box-shadow: 0 2px 8px rgba(46, 36, 23, 0.05);
    }

    .nav-link:hover, .nav-link:active {
        background: var(--primary-color); color: white;
        border-color: var(--primary-color);
    }
}

@media (min-width: 769px) {
    .nav-menu { display: block; position: static; background: none; transform: none; }
    .hamburger-menu { display: none; }
}

body.menu-open { overflow: hidden; }
.hamburger-menu:focus, .nav-link:focus { outline: 2px solid var(--primary-color); outline-offset: 2px; }

/* Dark mode — nav stays light so dark logo is always visible */
@media (prefers-color-scheme: dark) {
    .navigation { background: #ffffff; border-bottom-color: #ebe3d7; box-shadow: 0 1px 3px rgba(46,36,23,0.04); }
    .navigation .hamburger-line { background: #2e2417; }
    .navigation .hamburger-menu:hover .hamburger-line { background: var(--primary-color); }
    .navigation .nav-link { color: #6b5744; }
    .navigation .nav-link:hover { background: #fff4eb; color: #e07a2f; }
}

@media (prefers-color-scheme: dark) and (max-width: 768px) {
    .nav-menu { background: rgba(44, 37, 32, 0.97); }
    .nav-menu .nav-link { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.12); color: #f5ede3; }
    .nav-menu .nav-link:hover { background: #f0a060; color: #2c2520; border-color: #f0a060; }
}