/**
 * Sections CSS
 *
 * Section-specific layouts and responsive styles.
 *
 * @package STEELHAUS
 * @version 1.0.0
 */

/* ==========================================================================
   Site Header
   ========================================================================== */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    background-color: rgba(250, 250, 248, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition-base), background-color var(--transition-base);
}

.site-header--scrolled {
    border-bottom-color: var(--color-gray-light);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

@media (max-width: 768px) {
    .site-header__inner {
        height: 64px;
    }
}

/* Logo */
.site-logo {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.15em;
    color: var(--color-black);
    text-decoration: none;
}

.site-logo:hover {
    color: var(--color-black);
}

/* Desktop Navigation */
.site-nav {
    display: flex;
}

.site-nav__list {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    list-style: none;
    margin: 0;
    padding: 0;
}

.site-nav__link {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--color-black);
    text-decoration: none;
    padding: var(--space-xs) 0;
    position: relative;
    transition: color var(--transition-fast);
}

.site-nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-black);
    transition: width var(--transition-base);
}

.site-nav__link:hover::after {
    width: 100%;
}

.site-nav__link--cta {
    padding: var(--space-xs) var(--space-md);
    background-color: var(--color-black);
    color: var(--color-white);
    border-radius: var(--radius-sm);
}

.site-nav__link--cta:hover {
    background-color: var(--color-gray-dark);
    color: var(--color-white);
}

.site-nav__link--cta::after {
    display: none;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    padding: 0;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-toggle__bar {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-black);
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* Mobile Menu Open State */
.mobile-menu-toggle[aria-expanded="true"] .mobile-menu-toggle__bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.mobile-menu-toggle[aria-expanded="true"] .mobile-menu-toggle__bar:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] .mobile-menu-toggle__bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .site-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-white);
        border-bottom: 1px solid var(--color-gray-light);
        padding: var(--space-md);
    }
    
    .site-nav--open {
        display: block;
    }
    
    .site-nav__list {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
    }
    
    .site-nav__item {
        border-bottom: 1px solid var(--color-gray-light);
    }
    
    .site-nav__item:last-child {
        border-bottom: none;
    }
    
    .site-nav__link {
        display: block;
        padding: var(--space-sm) 0;
    }
    
    .site-nav__link::after {
        display: none;
    }
    
    .site-nav__link--cta {
        margin-top: var(--space-sm);
        text-align: center;
    }
}

/* ==========================================================================
   Section Header (Reusable)
   ========================================================================== */

.section-header {
    max-width: 700px;
    margin: 0 auto var(--space-2xl);
}

.section-header__title {
    margin-bottom: var(--space-md);
}

.section-header__subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-gray);
    line-height: var(--line-height-relaxed);
    margin-bottom: 0;
}

/* ==========================================================================
   Section: Hero
   ========================================================================== */

.section-hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 80px; /* Account for fixed header */
    overflow: hidden;
}

.section-hero__background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-gray-light);
    background-size: cover;
    background-position: center;
    z-index: 0;
}

.section-hero__overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(250, 250, 248, 0.9) 0%, rgba(250, 250, 248, 0.7) 100%);
    z-index: 1;
}

.section-hero .container {
    position: relative;
    z-index: 2;
}

.section-hero__content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.section-hero__headline {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    letter-spacing: -0.02em;
    margin-bottom: var(--space-md);
}

.section-hero__subheadline {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    color: var(--color-gray);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--space-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.section-hero__cta {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

/* Scroll Indicator */
.section-hero__scroll-indicator {
    position: absolute;
    bottom: var(--space-lg);
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
    opacity: 0.6;
    transition: opacity var(--transition-base);
}

.section-hero__scroll-indicator:hover {
    opacity: 1;
}

.section-hero__scroll-text {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-gray);
}

.section-hero__scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-gray), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.8); }
    50% { opacity: 1; transform: scaleY(1); }
}

@media (max-width: 768px) {
    .section-hero {
        min-height: calc(100vh - 64px);
        padding-top: 64px;
    }
    
    .section-hero__scroll-indicator {
        display: none;
    }
}

/* ==========================================================================
   Section: Benefits
   ========================================================================== */

.section-benefits {
    padding-top: var(--space-2xl);
    padding-bottom: var(--space-2xl);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
}

@media (max-width: 1024px) {
    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .benefits-grid {
        grid-template-columns: 1fr;
    }
}

/* ==========================================================================
   Section: Applications
   ========================================================================== */

.applications-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.application-card--wide {
    grid-column: span 1;
}

@media (min-width: 1024px) {
    .applications-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    /* First row: 3 cards */
    /* Second row: 2 cards centered via auto margins or different approach */
}

@media (max-width: 1024px) {
    .applications-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .application-card--wide {
        grid-column: span 2;
    }
}

@media (max-width: 600px) {
    .applications-grid {
        grid-template-columns: 1fr;
    }
    
    .application-card--wide {
        grid-column: span 1;
    }
}

/* ==========================================================================
   Section: Process
   ========================================================================== */

.process-timeline {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl) var(--space-lg);
    max-width: 1000px;
    margin: 0 auto;
}

@media (max-width: 1024px) {
    .process-timeline {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .process-timeline {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
    
    .process-step {
        padding-left: var(--space-sm);
        border-left: 2px solid var(--color-gray-light);
    }
    
    .process-step:last-child {
        border-left-color: transparent;
    }
}

/* ==========================================================================
   Section: Features
   ========================================================================== */

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-2xl);
    max-width: 900px;
    margin: 0 auto;
}

.features-column__title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--color-black);
}

@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
}

/* ==========================================================================
   Section: Trust
   ========================================================================== */

.trust-badges {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

@media (max-width: 1024px) {
    .trust-badges {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .trust-badges {
        grid-template-columns: 1fr;
    }
}

/* ==========================================================================
   Section: Contact
   ========================================================================== */

.section-contact {
    background-color: var(--color-white);
}

/* ==========================================================================
   Site Footer
   ========================================================================== */

.site-footer {
    padding-top: var(--space-2xl);
    padding-bottom: var(--space-lg);
}

.site-footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
}

@media (max-width: 1024px) {
    .site-footer__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .site-footer__grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
        text-align: center;
    }
}

.site-footer__logo {
    display: inline-block;
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.15em;
    color: var(--color-white);
    text-decoration: none;
    margin-bottom: var(--space-sm);
}

.site-footer__logo:hover {
    color: var(--color-white);
}

.site-footer__tagline {
    font-size: var(--font-size-base);
    color: var(--color-gray);
    margin-bottom: 0;
}

.site-footer__heading {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-gray);
    margin-bottom: var(--space-md);
}

.site-footer__list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.site-footer__list li {
    margin-bottom: var(--space-xs);
}

.site-footer__label {
    color: var(--color-gray);
}

.site-footer__link {
    color: var(--color-white);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.site-footer__link:hover {
    color: var(--color-gray-light);
}

.site-footer__cvr {
    margin-top: var(--space-sm);
    font-size: var(--font-size-sm);
    color: var(--color-gray);
}

.site-footer__bottom {
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-gray-dark);
    text-align: center;
}

.site-footer__copyright {
    font-size: var(--font-size-sm);
    color: var(--color-gray);
    margin-bottom: 0;
}