/**
 * Header Component Styles
 *
 * @package Tobalt_Starter
 * @author Tobalt — https://tobalt.lt
 */

/* Site Header - Default: White background, blue text */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    height: var(--header-height);
    background-color: var(--color-white);
    transition: background-color var(--transition-normal),
                height var(--transition-normal),
                box-shadow var(--transition-normal);
}

/* Header - Scrolled: Blue background, white text, no logo */
.site-header.is-scrolled {
    background-color: var(--color-primary);
    height: var(--header-height-scrolled);
    box-shadow: var(--shadow-header);
}

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

/* Logo - hide on scroll */
.site-header__logo {
    flex-shrink: 0;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.site-header.is-scrolled .site-header__logo {
    opacity: 0;
    visibility: hidden;
    width: 0;
    overflow: hidden;
}

.site-header__logo a {
    display: block;
    line-height: 0;
}

.site-header__logo img,
.site-header__logo .custom-logo {
    height: 48px;
    width: auto;
}

/* Site Title (fallback when no logo) */
.site-title {
    margin: 0;
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    line-height: 1;
}

.site-title a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.site-header.is-scrolled .site-title a {
    color: var(--color-white);
}

.site-description {
    display: none;
}

/* Navigation Container */
.site-header__nav {
    display: none;
}

@media (min-width: 992px) {
    .site-header__nav {
        display: flex;
        align-items: center;
    }
}

/* Contact Info */
.site-header__contact {
    display: none;
}

@media (min-width: 768px) {
    .site-header__contact {
        display: flex;
        align-items: center;
        gap: var(--space-md);
    }
}

/* Contact links - default blue */
.contact-link {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--color-primary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    min-height: var(--touch-target-min);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast);
}

/* Contact links - white on scroll */
.site-header.is-scrolled .contact-link {
    color: var(--color-white);
}

.contact-link:hover,
.contact-link:focus {
    color: var(--color-accent);
}

.site-header.is-scrolled .contact-link:hover,
.site-header.is-scrolled .contact-link:focus {
    color: var(--color-highlight);
}

.contact-link:focus-visible {
    outline: var(--focus-ring-width) solid var(--focus-ring-color);
    outline-offset: var(--focus-ring-offset);
}

.contact-link svg {
    flex-shrink: 0;
}

/* Mobile Menu Toggle - default blue */
.site-header__toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: var(--touch-target-min);
    height: var(--touch-target-min);
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--color-primary);
    padding: 0;
    transition: color var(--transition-fast);
}

/* Mobile toggle - white on scroll */
.site-header.is-scrolled .site-header__toggle {
    color: var(--color-white);
}

.site-header__toggle:focus-visible {
    outline: var(--focus-ring-width) solid var(--focus-ring-color);
    outline-offset: var(--focus-ring-offset);
}

@media (min-width: 992px) {
    .site-header__toggle {
        display: none;
    }
}

/* Hamburger Icon */
.hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 24px;
    height: 24px;
}

.hamburger__line {
    display: block;
    width: 100%;
    height: 2px;
    background-color: currentColor;
    border-radius: 1px;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.site-header__toggle.is-active .hamburger__line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.site-header__toggle.is-active .hamburger__line:nth-child(2) {
    opacity: 0;
}

.site-header__toggle.is-active .hamburger__line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Header Spacer */
.header-spacer {
    height: var(--header-height);
}