/* Site chrome — glass bar, centered inner row at large widths */

:root {
    --ttms-safe-top: 0px;
    --ttms-safe-top: constant(safe-area-inset-top, 0px);
    --ttms-safe-top: env(safe-area-inset-top, 0px);
    --ttms-header-bar: 5em;
    --ttms-header-height: calc(var(--ttms-header-bar) + var(--ttms-safe-top));
}

#bg-wrapper > header {
    max-height: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 3000;
    padding-top: var(--ttms-safe-top);
    background: color-mix(in srgb, var(--header-bg-color, var(--white-off)) 82%, transparent);
    border-bottom: 1px solid var(--border-light);
    box-shadow: 0 8px 28px var(--shadow-light);
    backdrop-filter: blur(var(--glass-blur, 20px));
    -webkit-backdrop-filter: blur(var(--glass-blur, 20px));
    transition:
        background-color var(--dur, 0.32s) var(--ease-out, cubic-bezier(0.22, 1, 0.36, 1)),
        border-color var(--dur, 0.32s) var(--ease-out, cubic-bezier(0.22, 1, 0.36, 1)),
        box-shadow var(--dur, 0.32s) var(--ease-out, cubic-bezier(0.22, 1, 0.36, 1));
}

#bg-wrapper > header .container,
.main-header .container {
    height: var(--ttms-header-bar);
    max-width: var(--ttms-header-max, 1400px);
    width: 100%;
    margin-inline: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.35rem;
    padding-inline: clamp(0.45rem, 1.6vw, 1.35rem);
    box-sizing: border-box;
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
}

.main-header {
    display: flex;
    width: 100%;
}

.header-flex {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    min-width: 0;
    flex: 1 1 auto;
}

.header-actions {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    flex-shrink: 0;
}

header #logo {
    display: block;
    height: -webkit-fill-available;
    transition: transform var(--dur-fast, 0.18s) var(--ease-spring, cubic-bezier(0.34, 1.4, 0.64, 1));
}

header #logo:hover {
    transform: scale(1.04);
}

header #logo:active {
    transform: scale(0.98);
}

header #menu {
    display: flex;
    margin-block: auto;
    margin-inline: 0;
    overflow: hidden;
    width: -webkit-fill-available;
    justify-content: flex-end;
    flex-direction: row;
}

header #menu ul {
    list-style: none;
    display: flex;
}

header #menu a,
header #navigation a,
header #customization a {
    text-decoration: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 0.75rem;
    font-weight: 500;
    min-width: 3em;
    padding: 0.6em 1em;
    justify-content: center;
    color: var(--text-primary);
    background: var(--glass-bg);
    border-radius: 12px;
    margin: auto 0.2em;
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition:
        transform var(--dur, 0.32s) var(--ease-out, cubic-bezier(0.22, 1, 0.36, 1)),
        background var(--dur-fast, 0.18s) var(--ease-soft, ease),
        border-color var(--dur-fast, 0.18s) var(--ease-soft, ease),
        box-shadow var(--dur, 0.32s) var(--ease-out, cubic-bezier(0.22, 1, 0.36, 1));
    position: relative;
    overflow: hidden;
}

header #menu a::before,
header #navigation a::before,
header #customization a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--border-light), transparent);
    transition: left 0.5s;
}

header #menu a:hover,
header #navigation a:hover,
header #customization a:hover {
    background: var(--glass-bg-hover, var(--glass-bg));
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
    border-color: var(--border-light);
}

header #menu a:hover::before,
header #navigation a:hover::before,
header #customization a:hover::before {
    left: 100%;
}

header #menu a:active,
header #navigation a:active,
header #customization a:active {
    transform: translateY(0);
    box-shadow: var(--shadow-light);
}

header #navigation img,
header #customization img {
    max-height: 32px;
    max-width: 32px;
    margin-bottom: 0.2em;
}

header #customization {
    border-left: 1px solid var(--border-light);
    margin-left: 0.5em;
    padding-left: 0.5em;
}

header img {
    height: 4em;
    width: auto;
}

#night-mode,
#light-mode {
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: transform var(--dur-fast, 0.18s) var(--ease-spring, cubic-bezier(0.34, 1.4, 0.64, 1));
}

#night-mode:hover,
#light-mode:hover {
    transform: scale(1.05);
    background: var(--glass-bg);
}

#night-mode.active,
#light-mode.active {
    background: color-mix(in srgb, var(--primary-orange) 22%, var(--glass-bg));
    border-color: color-mix(in srgb, var(--primary-orange) 45%, var(--glass-border));
    box-shadow: 0 0 16px color-mix(in srgb, var(--primary-orange) 35%, transparent);
}

#night-mode.active span,
#light-mode.active span {
    color: var(--text-primary);
    font-weight: 600;
}

[data-theme="dark"] #bg-wrapper > header {
    background: color-mix(in srgb, var(--header-bg-color, var(--primary-blue-dark)) 88%, transparent);
    border-bottom-color: var(--border-light);
    box-shadow: 0 10px 32px rgba(0, 0, 0, 0.35);
}

[data-theme="dark"] header #menu a,
[data-theme="dark"] header #navigation a,
[data-theme="dark"] header #customization a {
    color: var(--text-primary);
}

@media (max-width: 720px) {
    #bg-wrapper > header .container,
    .main-header .container {
        padding-inline: 0.25rem 0.4rem;
    }

    header img {
        height: calc(var(--ttms-header-bar) - 0.4em);
    }
}

@media (prefers-reduced-motion: reduce) {
    header #logo,
    header #menu a,
    header #navigation a,
    #night-mode,
    #light-mode {
        transition: none;
    }

    header #logo:hover,
    header #menu a:hover,
    header #navigation a:hover {
        transform: none;
    }
}