/* ==========================================================================
   Section-Specific Styles - Mobile-First & Readability Optimized
   ========================================================================== */

/* ========================================
   Header / Navbar - Fixed Navigation
   ======================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-header);
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
    padding: 16px 0;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: var(--container-max-width);
    margin: 0 auto; /* Centers the container on wide screens */
    padding: 0 var(--container-padding);
}

.navbar-logo-link {
    display: flex;
    align-items: center;
    gap: 12px;
    line-height: 0;
    transition: opacity var(--transition-base);
}

.navbar-logo-link:hover {
    opacity: 0.8;
}

.navbar-logo {
    height: 48px;
    width: auto;
    display: block;
}

.navbar-logo-text {
    font-family: var(--font-family-heading);
    font-weight: 300;
    font-size: 24px;
    letter-spacing: 0.05em;
    color: var(--color-text-primary);
}

.language-switcher {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-xs);
}

/* ========================================
   Section 1: Hero - Mobile-First
   ======================================== */
.section--hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background-color: var(--color-white);
    /* Mobile: account for navbar (48px logo + 32px padding = 80px total) */
    padding-top: calc(var(--section-padding-y-mobile) + var(--header-height));
    padding-bottom: var(--section-padding-y-mobile);
    /* Horizontal padding is handled by .container class to match header alignment */
}

.hero__slogan {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--color-accent-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: var(--spacing-lg);
    text-align: center;
    /* Mobile: ensure readability */
    line-height: var(--line-height-normal);
}

.hero__headline {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-lg);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.2;
    /* Mobile: prevent awkward line breaks */
    overflow-wrap: break-word;
    hyphens: auto;
}

.hero__subtext {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-regular);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-2xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: var(--line-height-relaxed);
}

.hero__cta {
    position: relative;
}

.hero__illustration {
    margin: 64px auto 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Mobile-first: responsive image sizing */
.hero-image {
    max-width: 100%;
    width: 100%;
    height: auto;
    max-height: calc(100vh - var(--header-height) - 300px);
    object-fit: contain;
    display: block;
    margin: 0 auto;
}

@media (min-width: 640px) {
    .hero-image {
        max-width: 600px;
        max-height: calc(100vh - var(--header-height) - 320px);
    }

    .hero__illustration {
        margin-top: 80px;
    }
}

@media (min-width: 768px) {
    .hero-image {
        max-width: 700px;
        max-height: calc(100vh - var(--header-height) - 340px);
    }

    .hero__illustration {
        margin-top: 96px;
    }
}

@media (min-width: 1024px) {
    .hero-image {
        max-width: 800px;
        max-height: calc(100vh - var(--header-height) - 360px);
    }

    .hero__illustration {
        margin-top: 112px;
    }
}

/* ========================================
   Section 2: Philosophy - Mobile-Optimized
   ======================================== */
.section--philosophy {
    background-color: #F8F8F8;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.section__title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    color: var(--color-text-primary);
    line-height: var(--line-height-tight);
    /* Horizontal padding is handled by .container class to match header alignment */
}

/* Tablet and up: larger margin */
@media (min-width: 768px) {
    .section__title {
        margin-bottom: var(--spacing-3xl);
    }
}

.section__intro {
    font-size: var(--font-size-lg);
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    color: var(--color-text-primary);
    line-height: var(--line-height-relaxed);
    /* Horizontal padding is handled by .container class to match header alignment */
}

@media (min-width: 768px) {
    .section__intro {
        margin-bottom: var(--spacing-3xl);
    }
}

/* Philosophy grid - mobile-first */
.philosophy__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

@media (min-width: 768px) {
    .philosophy__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-2xl);
        margin-bottom: var(--spacing-3xl);
    }
}

@media (min-width: 1024px) {
    .philosophy__grid {
        gap: var(--spacing-3xl);
    }
}

.philosophy__card {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: 2px;
    border: 1px solid #E8E8E8;
    transition: transform var(--transition-base);
}

.philosophy__icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--spacing-md);
    color: var(--color-accent-primary);
    stroke-width: 2;
    display: block;
}

/* Tablet and up: larger padding */
@media (min-width: 768px) {
    .philosophy__card {
        padding: var(--spacing-2xl);
    }
}

.philosophy__card:hover {
    transform: translateY(-2px);
}

.philosophy__card h3 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
    line-height: var(--line-height-tight);
}

.philosophy__card p {
    font-size: var(--font-size-base);
    line-height: var(--line-height-loose);
    color: var(--color-text-primary);
    margin-bottom: 0;
}

.philosophy__quality {
    position: relative;
    padding: var(--spacing-lg) var(--spacing-md);
    margin: var(--spacing-2xl) auto 0;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-loose);
    background-color: #F9F9F9;
    border-radius: 2px;
    max-width: 900px;
}

/* Tablet and up: larger text and padding */
@media (min-width: 768px) {
    .philosophy__quality {
        padding: var(--spacing-xl) var(--spacing-2xl);
        margin: var(--spacing-3xl) auto 0;
        font-size: var(--font-size-lg);
    }
}

/* ========================================
   Section 3: Expertise - Mobile Grid
   ======================================== */
.section--expertise {
    background-color: var(--color-white);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.expertise__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

/* Small tablets: 2 columns */
@media (min-width: 640px) {
    .expertise__grid {
        grid-template-columns: repeat(2, 1fr);
        margin-top: var(--spacing-3xl);
    }
}

/* Desktop: 4 columns */
@media (min-width: 1024px) {
    .expertise__grid {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--spacing-xl);
    }
}

.expertise__card {
    text-align: center;
    padding: var(--spacing-lg);
    background-color: var(--color-white);
    border-radius: 4px;
    box-shadow: none;
    transition: transform var(--transition-base);
}

/* Tablet and up: larger padding */
@media (min-width: 768px) {
    .expertise__card {
        padding: var(--spacing-xl);
    }
}

.expertise__card:hover {
    transform: translateY(-4px);
}

.expertise__icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--spacing-md);
    color: var(--color-accent-primary);
    stroke-width: 2;
}

.expertise__title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
    line-height: var(--line-height-tight);
}

.expertise__text {
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    color: var(--color-text-primary);
}

/* ========================================
   Section 4: Contact - Mobile-Optimized Form
   ======================================== */
.section--contact {
    background-color: #F8F8F8;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.section__body {
    font-size: var(--font-size-lg);
    text-align: center;
    margin-bottom: var(--spacing-md);  /* Reduced from xl (48px) to md (24px) for compact contact section */
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    color: var(--color-text-primary);
    line-height: var(--line-height-loose);
    /* Horizontal padding is handled by .container class to match header alignment */
}

@media (min-width: 768px) {
    .section__body {
        margin-bottom: var(--spacing-lg);  /* Reduced from 2xl (64px) to lg (32px) */
    }
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background-color: var(--color-white);
    padding: var(--spacing-md);  /* Reduced from lg (32px) to md (24px) for compact form */
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

/* Tablet and up: moderate padding for compact form */
@media (min-width: 768px) {
    .contact-form {
        padding: var(--spacing-lg);  /* Reduced from 2xl (64px) to lg (32px) */
    }
}

@media (min-width: 1024px) {
    .contact-form {
        padding: var(--spacing-xl);  /* Reduced from 3xl (96px) to xl (48px) */
    }
}

/* Privacy Notice */
.form-privacy-notice {
    margin-top: var(--spacing-sm);  /* Reduced from lg (32px) to sm (16px) for compact form */
    font-size: 0.813rem;
    line-height: var(--line-height-relaxed);
    color: #666;
    text-align: center;
    padding: 0 var(--spacing-sm);
}

@media (min-width: 768px) {
    .form-privacy-notice {
        font-size: 0.875rem;
        padding: 0;
    }
}

.form-privacy-link {
    color: #666;
    text-decoration: underline;
    transition: color var(--transition-base);
}

.form-privacy-link:hover {
    color: var(--color-accent-primary);
    text-decoration: underline;
}

/* ========================================
   Footer - Mobile-First
   ======================================== */
.site-footer {
    background-color: var(--color-text-primary);
    color: var(--color-white);
    padding: var(--spacing-md) 0;
    text-align: center;
}

@media (min-width: 768px) {
    .site-footer {
        padding: var(--spacing-lg) 0;
    }
}

.footer-content {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    min-height: 60px;
}

.footer-copyright {
    position: absolute;
    left: var(--container-padding);
    font-size: var(--font-size-sm);
    margin: 0;
    line-height: var(--line-height-normal);
}

.footer-logo {
    height: 80px;
    width: auto;
    display: block;
}

.site-footer p {
    font-size: var(--font-size-sm);
    margin: 0;
    line-height: var(--line-height-normal);
}

.footer-legal {
    position: absolute;
    right: var(--container-padding);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.footer-legal__link {
    font-size: var(--font-size-sm);
    color: var(--color-white);
    text-decoration: none;
    transition: color var(--transition-base);
    line-height: var(--line-height-normal);
}

.footer-legal__link:hover {
    color: var(--color-accent-primary);
}

.footer-legal__separator {
    font-size: var(--font-size-sm);
    color: var(--color-white);
    opacity: 0.5;
    user-select: none;
}

/* Mobile: Stack legal links below logo */
@media (max-width: 767px) {
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .footer-copyright {
        position: static;
        order: 2;
    }
    
    .footer-logo {
        order: 1;
    }
    
    .footer-legal {
        position: static;
        order: 3;
    }
}