/*
 Theme Name:   HoutenKozijnenSpecialist
 Theme URI:    https://houtenkozijnenspecialist.nl
 Description:  GeneratePress child theme voor HoutenKozijnenSpecialist — Dé specialist in houten kozijnen, ramen en deuren. Lead generatie website met KGR SEO strategie.
 Author:       HoutenKozijnenSpecialist
 Author URI:   https://houtenkozijnenspecialist.nl
 Template:     generatepress
 Version:      1.0.0
 License:      GNU General Public License v2 or later
 License URI:  https://www.gnu.org/licenses/gpl-2.0.html
 Text Domain:  kozijnen-theme
 Tags:         lead-generation, dutch, houten-kozijnen, generatepress-child
*/

/* ==========================================================================
   CSS Custom Properties — Design Tokens
   ========================================================================== */

:root {
    /* Primary Palette */
    --color-charcoal:       #2C2C2C;
    --color-charcoal-light: #3A3A3A;
    --color-charcoal-dark:  #1A1A1A;

    /* Accent */
    --color-gold:           #D4A843;
    --color-gold-light:     #E2C06E;
    --color-gold-dark:      #B8912E;

    /* Secondary — Forest Green (trust, nature, wood) */
    --color-green:          #2D5016;
    --color-green-light:    #3D6B1E;
    --color-green-dark:     #1E3A0E;

    /* Tertiary — Saddle Brown (wood accent) */
    --color-brown:          #8B4513;
    --color-brown-light:    #A0522D;
    --color-brown-dark:     #6B3410;

    /* Neutrals */
    --color-white:          #FFFFFF;
    --color-off-white:      #FAFAF5;
    --color-off-white-warm: #F5F3EF;
    --color-warm-gray:      #E8E4DE;
    --color-medium-gray:    #9A9590;
    --color-dark-gray:      #4A4A4A;
    --color-text:           #333333;
    --color-text-light:     #F5F3EF;
    --color-light-gray:     #F5F5F0;

    /* Functional */
    --color-success:        #2D5016;
    --color-error:          #C0392B;
    --color-warning:        #D4A843;
    --color-info:           #2980B9;
    --color-focus:          #D4A843;
    --color-link:           #D4A843;
    --color-link-hover:     #E2C06E;

    /* Typography — System font stack with premium fallbacks */
    --font-heading:         'Playfair Display', Georgia, 'Times New Roman', serif;
    --font-body:            'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono:            'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    --font-size-base:       1.125rem; /* 18px as specified */
    --font-size-sm:         0.875rem;
    --font-size-lg:         1.25rem;
    --font-size-xl:         1.5rem;
    --font-size-2xl:        2rem;
    --font-size-3xl:        2.5rem;
    --font-size-4xl:        3.25rem;
    --line-height-base:     1.6;
    --line-height-heading:  1.2;

    /* Spacing */
    --space-xs:   0.25rem;
    --space-sm:   0.5rem;
    --space-md:   1rem;
    --space-lg:   1.5rem;
    --space-xl:   2rem;
    --space-2xl:  3rem;
    --space-3xl:  4rem;
    --space-4xl:  6rem;

    /* Layout */
    --container-max:    1200px;
    --container-narrow: 800px;
    --border-radius:    4px;
    --border-radius-lg: 8px;
    --border-radius-xl: 12px;
    --border-radius-full: 9999px;

    /* Shadows */
    --shadow-sm:  0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md:  0 4px 12px rgba(0,0,0,0.1), 0 2px 4px rgba(0,0,0,0.06);
    --shadow-lg:  0 8px 30px rgba(0,0,0,0.12), 0 4px 8px rgba(0,0,0,0.06);
    --shadow-xl:  0 20px 60px rgba(0,0,0,0.15);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
}

/* ==========================================================================
   Base Resets & GeneratePress Overrides
   ========================================================================== */

/* Smooth scrolling (respects prefers-reduced-motion) */
@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
        scroll-padding-top: 80px; /* Account for sticky header */
    }
}

/* Selection color */
::selection {
    background-color: var(--color-gold);
    color: var(--color-charcoal-dark);
}

/* Skip to content link */
.skip-to-content {
    position: absolute;
    top: -100px;
    left: var(--space-md);
    background-color: var(--color-gold);
    color: var(--color-charcoal-dark);
    padding: var(--space-sm) var(--space-lg);
    font-weight: 700;
    z-index: 999;
    border-radius: 0 0 var(--border-radius) var(--border-radius);
    transition: top var(--transition-fast);
}

.skip-to-content:focus {
    top: 0;
}

body {
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--color-text);
    background-color: var(--color-off-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    line-height: var(--line-height-heading);
    color: var(--color-charcoal);
    font-weight: 700;
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }

a {
    color: var(--color-link);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover,
a:focus {
    color: var(--color-link-hover);
}

a:focus-visible {
    outline: 3px solid var(--color-focus);
    outline-offset: 2px;
}

img {
    max-width: 100%;
    height: auto;
}

/* ==========================================================================
   Utility Classes
   ========================================================================== */

.container {
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--space-lg);
}

.container--narrow {
    max-width: var(--container-narrow);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 0.75rem 1.75rem;
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    font-weight: 600;
    line-height: 1;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-base);
    min-height: 44px; /* WCAG touch target */
}

.btn:focus-visible {
    outline: 3px solid var(--color-focus);
    outline-offset: 2px;
}

.btn--primary {
    background-color: var(--color-gold);
    color: var(--color-charcoal-dark);
    border-color: var(--color-gold);
}

.btn--primary:hover,
.btn--primary:focus {
    background-color: var(--color-gold-dark);
    border-color: var(--color-gold-dark);
    color: var(--color-white);
}

.btn--secondary {
    background-color: transparent;
    color: var(--color-gold);
    border-color: var(--color-gold);
}

.btn--secondary:hover,
.btn--secondary:focus {
    background-color: var(--color-gold);
    color: var(--color-charcoal-dark);
}

.btn--green {
    background-color: var(--color-green);
    color: var(--color-white);
    border-color: var(--color-green);
}

.btn--green:hover,
.btn--green:focus {
    background-color: var(--color-green-dark);
    border-color: var(--color-green-dark);
}

.btn--large {
    padding: 1rem 2.25rem;
    font-size: var(--font-size-lg);
}

.btn--full {
    width: 100%;
}

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

.site-header {
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-warm-gray);
    position: sticky;
    top: 0;
    z-index: 100;
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-block: var(--space-md);
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--space-lg);
}

.site-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
    color: var(--color-charcoal);
}

.site-logo__icon {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
}

.site-logo__text {
    font-family: var(--font-heading);
    font-size: var(--font-size-lg);
    font-weight: 700;
    line-height: 1.2;
}

.site-logo__text span {
    color: var(--color-gold);
}

/* Navigation */
.main-nav__list {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
    list-style: none;
    margin: 0;
    padding: 0;
}

.main-nav__link {
    font-family: var(--font-body);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-charcoal);
    text-decoration: none;
    padding: var(--space-sm) 0;
    position: relative;
    transition: color var(--transition-fast);
}

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

.main-nav__link:hover::after,
.main-nav__link--active::after {
    width: 100%;
}

.main-nav__link:hover,
.main-nav__link--active {
    color: var(--color-gold);
}

.main-nav__cta {
    margin-left: var(--space-md);
}

/* Mobile Nav Toggle */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
    min-height: 44px;
    min-width: 44px;
}

.nav-toggle__bar {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-charcoal);
    margin: 5px 0;
    transition: all var(--transition-fast);
}

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

.hero {
    position: relative;
    background-color: var(--color-charcoal);
    color: var(--color-text-light);
    overflow: hidden;
    min-height: 70vh;
    display: flex;
    align-items: center;
}

.hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(26,26,26,0.85) 0%, rgba(44,44,44,0.7) 100%);
    z-index: 1;
}

.hero__bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    z-index: 0;
}

.hero__content {
    position: relative;
    z-index: 2;
    max-width: var(--container-max);
    margin-inline: auto;
    padding: var(--space-4xl) var(--space-lg);
    text-align: center;
}

.hero__title {
    font-size: var(--font-size-4xl);
    color: var(--color-white);
    margin-bottom: var(--space-md);
}

.hero__title span {
    color: var(--color-gold);
}

.hero__subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-warm-gray);
    margin-bottom: var(--space-2xl);
    max-width: 680px;
    margin-inline: auto;
}

.hero__actions {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ==========================================================================
   Content Sections
   ========================================================================== */

.section {
    padding-block: var(--space-4xl);
}

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

.section--dark {
    background-color: var(--color-charcoal);
    color: var(--color-text-light);
}

.section__header {
    text-align: center;
    margin-bottom: var(--space-3xl);
    max-width: var(--container-narrow);
    margin-inline: auto;
}

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

.section__subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-medium-gray);
}

.section--dark .section__title {
    color: var(--color-white);
}

.section--dark .section__subtitle {
    color: var(--color-warm-gray);
}

/* ==========================================================================
   Cards / Grid
   ========================================================================== */

.card-grid {
    display: grid;
    gap: var(--space-xl);
    grid-template-columns: 1fr;
}

.card {
    background-color: var(--color-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.card__image {
    aspect-ratio: 16/10;
    overflow: hidden;
}

.card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.card:hover .card__image img {
    transform: scale(1.03);
}

.card__body {
    padding: var(--space-xl);
}

.card__title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-sm);
}

.card__text {
    color: var(--color-dark-gray);
    margin-bottom: var(--space-lg);
}

/* ==========================================================================
   Forms
   ========================================================================== */

.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    font-size: var(--font-size-sm);
    color: var(--color-charcoal);
}

.form-label--required::after {
    content: ' *';
    color: var(--color-error);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    color: var(--color-text);
    background-color: var(--color-white);
    border: 1px solid var(--color-warm-gray);
    border-radius: var(--border-radius);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    min-height: 44px; /* WCAG */
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--color-gold);
    box-shadow: 0 0 0 3px rgba(212, 168, 67, 0.2);
    outline: none;
}

.form-input.is-error,
.form-select.is-error {
    border-color: var(--color-error);
}

.form-error {
    color: var(--color-error);
    font-size: var(--font-size-sm);
    margin-top: var(--space-xs);
    display: none;
}

.form-error.is-visible {
    display: block;
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
}

.form-checkbox input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    flex-shrink: 0;
    accent-color: var(--color-green);
}

/* ==========================================================================
   CTA Blocks
   ========================================================================== */

.cta-block {
    background-color: var(--color-charcoal);
    color: var(--color-text-light);
    padding: var(--space-3xl) var(--space-lg);
    text-align: center;
    border-radius: var(--border-radius-lg);
}

.cta-block__title {
    font-size: var(--font-size-2xl);
    color: var(--color-white);
    margin-bottom: var(--space-md);
}

.cta-block__text {
    color: var(--color-warm-gray);
    margin-bottom: var(--space-xl);
    max-width: 600px;
    margin-inline: auto;
}

.cta-inline {
    background: linear-gradient(135deg, var(--color-green) 0%, var(--color-green-dark) 100%);
    color: var(--color-white);
    padding: var(--space-xl);
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-lg);
    flex-wrap: wrap;
}

.cta-inline__text {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

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

.site-footer {
    background-color: var(--color-charcoal-dark);
    color: var(--color-warm-gray);
    padding-top: var(--space-4xl);
}

.site-footer__grid {
    display: grid;
    gap: var(--space-2xl);
    grid-template-columns: 1fr;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--space-lg);
}

.site-footer__heading {
    font-family: var(--font-heading);
    font-size: var(--font-size-lg);
    color: var(--color-white);
    margin-bottom: var(--space-lg);
}

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

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

.site-footer__list a {
    color: var(--color-warm-gray);
    font-size: var(--font-size-sm);
}

.site-footer__list a:hover {
    color: var(--color-gold);
}

.site-footer__bottom {
    border-top: 1px solid var(--color-charcoal);
    margin-top: var(--space-3xl);
    padding: var(--space-lg);
    text-align: center;
    font-size: var(--font-size-sm);
}

.site-footer__bottom a {
    color: var(--color-warm-gray);
}

.site-footer__bottom a:hover {
    color: var(--color-gold);
}

/* ==========================================================================
   Responsive — Mobile First
   ========================================================================== */

@media (min-width: 640px) {
    .card-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 768px) {
    .site-footer__grid {
        grid-template-columns: 2fr 1fr 1fr 1fr;
    }
}

@media (max-width: 767px) {
    :root {
        --font-size-4xl: 2.25rem;
        --font-size-3xl: 1.875rem;
        --font-size-2xl: 1.5rem;
    }

    .nav-toggle {
        display: flex;
        flex-direction: column;
        justify-content: center;
    }

    .main-nav__list {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-white);
        flex-direction: column;
        padding: var(--space-lg);
        gap: var(--space-md);
        box-shadow: var(--shadow-md);
        border-top: 1px solid var(--color-warm-gray);
    }

    .main-nav__list.is-open {
        display: flex;
    }

    .main-nav__cta {
        margin-left: 0;
    }

    .hero {
        min-height: 60vh;
    }

    .hero__actions {
        flex-direction: column;
        align-items: center;
    }
}

@media (min-width: 1024px) {
    .card-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ==========================================================================
   Print Styles
   ========================================================================== */

@media print {
    .site-header,
    .site-footer,
    .cta-block,
    .cta-inline,
    .nav-toggle {
        display: none;
    }

    body {
        color: #000;
        background: #fff;
    }
}