/* ============================================================================
   POPULAR GLASS PRINTERS - COMPONENT LIBRARY
   Reusable UI Components
   ============================================================================ */

/* ============================================================================
   NAVIGATION - STICKY HEADER
   ============================================================================ */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky);
    background-color: transparent;
    transition: background-color var(--duration-base) var(--ease-out),
        box-shadow var(--duration-base) var(--ease-out);
}

.header--scrolled {
    background-color: var(--bg-secondary);
    box-shadow: var(--shadow-md);
}

.header__container {
    max-width: var(--max-content-width);
    margin: 0 auto;
    padding: var(--space-4) var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header__logo {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--text-on-dark);
    transition: color var(--duration-base) var(--ease-out);
}

.header--scrolled .header__logo {
    color: var(--text-primary);
}

.header__nav {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.header__nav-link {
    font-size: var(--text-base);
    font-weight: var(--font-medium);
    color: var(--text-on-dark);
    transition: color var(--duration-base) var(--ease-out);
    position: relative;
}

.header--scrolled .header__nav-link {
    color: var(--text-primary);
}

.header__nav-link:hover {
    color: var(--color-gold);
}

.header__nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-gold);
    transition: width var(--duration-base) var(--ease-out);
}

.header__nav-link:hover::after,
.header__nav-link--active::after {
    width: 100%;
}

/* Mobile Menu Toggle */
.header__menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
}

.header__menu-icon {
    width: 24px;
    height: 2px;
    background-color: var(--text-on-dark);
    transition: background-color var(--duration-base) var(--ease-out);
    position: relative;
}

.header--scrolled .header__menu-icon {
    background-color: var(--text-primary);
}

.header__menu-icon::before,
.header__menu-icon::after {
    content: '';
    position: absolute;
    left: 0;
    width: 24px;
    height: 2px;
    background-color: inherit;
    transition: transform var(--duration-base) var(--ease-out);
}

.header__menu-icon::before {
    top: -8px;
}

.header__menu-icon::after {
    bottom: -8px;
}

.header__menu-toggle--active .header__menu-icon {
    background-color: transparent;
}

.header__menu-toggle--active .header__menu-icon::before {
    transform: rotate(45deg) translate(6px, 6px);
}

.header__menu-toggle--active .header__menu-icon::after {
    transform: rotate(-45deg) translate(6px, -6px);
    background-color: var(--text-primary) !important;
}

@media (max-width: 768px) {
    .header__nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background-color: var(--bg-secondary);
        flex-direction: column;
        align-items: flex-start;
        padding: var(--space-20) var(--space-6);
        gap: var(--space-6);
        transition: right var(--duration-slow) var(--ease-in-out);
        box-shadow: var(--shadow-xl);
    }

    .header__nav--open {
        right: 0;
    }

    .header__nav-link {
        color: var(--text-primary);
        font-size: var(--text-lg);
    }

    .header__menu-toggle {
        display: block;
    }
}

/* ============================================================================
   BUTTONS - CTA HIERARCHY
   ============================================================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    text-align: center;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--duration-base) var(--ease-out);
    border: 2px solid transparent;
    text-decoration: none;
}

/* Tier 1 Primary CTA - Gold Button */
.btn--primary {
    background-color: var(--color-gold);
    color: var(--text-on-gold);
    border-color: var(--color-gold);
}

.btn--primary:hover {
    background-color: var(--color-gold-dark);
    border-color: var(--color-gold-dark);
    color: var(--text-on-gold);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Tier 1 Alternative - Dark Button with Gold Border */
.btn--primary-dark {
    background-color: var(--color-charcoal);
    color: var(--text-on-dark);
    border-color: var(--color-gold);
}

.btn--primary-dark:hover {
    background-color: var(--color-charcoal-light);
    color: var(--text-on-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Tier 2 Secondary CTA - Outline Button */
.btn--secondary {
    background-color: transparent;
    color: var(--text-primary);
    border-color: var(--text-primary);
}

.btn--secondary:hover {
    background-color: var(--text-primary);
    color: var(--text-on-dark);
}

.btn--secondary-light {
    background-color: transparent;
    color: var(--text-on-dark);
    border-color: var(--text-on-dark);
}

.btn--secondary-light:hover {
    background-color: var(--text-on-dark);
    color: var(--text-primary);
}

/* Tier 3 Soft CTA - Text Link with Arrow */
.btn--link {
    background: none;
    border: none;
    padding: 0;
    color: var(--text-primary);
    font-weight: var(--font-medium);
}

.btn--link:hover {
    color: var(--color-gold);
}

.btn--link::after {
    content: ' →';
    transition: transform var(--duration-base) var(--ease-out);
    display: inline-block;
}

.btn--link:hover::after {
    transform: translateX(4px);
}

/* Button Sizes */
.btn--sm {
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-sm);
}

.btn--lg {
    padding: var(--space-5) var(--space-10);
    font-size: var(--text-lg);
}

/* ============================================================================
   CARDS
   ============================================================================ */

.card {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    box-shadow: var(--shadow-sm);
    transition: all var(--duration-base) var(--ease-out);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.card__image {
    width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-4);
    object-fit: cover;
}

.card__title {
    font-size: var(--text-2xl);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-3);
}

.card__description {
    font-size: var(--text-base);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-6);
}

.card__link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-gold);
    font-weight: var(--font-medium);
    transition: gap var(--duration-base) var(--ease-out);
}

.card__link:hover {
    gap: var(--space-3);
}

/* Service Card Variant */
.card--service {
    text-align: center;
    position: relative;
    overflow: hidden;
}

.card--service::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(to right, var(--color-gold), var(--color-gold-light));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--duration-slow) var(--ease-out);
}

.card--service:hover::before {
    transform: scaleX(1);
}

/* Portfolio Card Variant */
.card--portfolio {
    padding: 0;
    overflow: hidden;
    position: relative;
}

.card--portfolio__overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(44, 44, 44, 0.9), transparent);
    padding: var(--space-6);
    transform: translateY(100%);
    transition: transform var(--duration-base) var(--ease-out);
}

.card--portfolio:hover .card--portfolio__overlay {
    transform: translateY(0);
}

.card--portfolio__tags {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.card--portfolio__tag {
    font-size: var(--text-xs);
    padding: var(--space-1) var(--space-3);
    background-color: var(--color-gold);
    color: var(--text-on-gold);
    border-radius: var(--radius-full);
    font-weight: var(--font-medium);
}

/* ============================================================================
   CLIENT LOGO GRID
   ============================================================================ */

.client-logos {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--space-8);
    align-items: center;
    justify-items: center;
}

.client-logos__item {
    width: 100%;
    max-width: 150px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    filter: grayscale(100%) opacity(0.6);
    transition: all var(--duration-base) var(--ease-out);
}

.client-logos__item:hover {
    filter: grayscale(0%) opacity(1);
}

.client-logos__image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

/* ============================================================================
   TRUST BADGES
   ============================================================================ */

.trust-badges {
    display: flex;
    gap: var(--space-6);
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

.trust-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--space-4);
}

.trust-badge__number {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    color: var(--color-gold);
    line-height: 1;
    margin-bottom: var(--space-2);
}

.trust-badge__label {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    font-weight: var(--font-medium);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wide);
}

/* ============================================================================
   TESTIMONIALS
   ============================================================================ */

.testimonial {
    background-color: var(--bg-secondary);
    padding: var(--space-8);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    position: relative;
}

.testimonial::before {
    content: '"';
    position: absolute;
    top: var(--space-4);
    left: var(--space-6);
    font-size: 4rem;
    color: var(--color-gold);
    opacity: 0.2;
    line-height: 1;
}

.testimonial__quote {
    font-size: var(--text-lg);
    line-height: var(--leading-relaxed);
    color: var(--text-primary);
    margin-bottom: var(--space-6);
    position: relative;
    z-index: 1;
}

.testimonial__author {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.testimonial__author-image {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    object-fit: cover;
}

.testimonial__author-info {
    flex: 1;
}

.testimonial__author-name {
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

.testimonial__author-title {
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

/* ============================================================================
   FORM COMPONENTS
   ============================================================================ */

.form-group {
    margin-bottom: var(--space-6);
}

.form-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--space-4);
    font-size: var(--text-base);
    font-family: var(--font-primary);
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    border: 2px solid var(--color-gray-soft);
    border-radius: var(--radius-md);
    transition: all var(--duration-base) var(--ease-out);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-gold);
    box-shadow: 0 0 0 3px rgba(201, 169, 97, 0.1);
}

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

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-light);
}

/* High-Contrast Contact Form (Per User Spec) */
.form--contact .form-input,
.form--contact .form-textarea,
.form--contact .form-select {
    background-color: var(--color-white);
    border-color: var(--color-gray-medium);
}

/* ============================================================================
   PROCESS DIAGRAMS
   ============================================================================ */

.process-diagram {
    display: flex;
    gap: var(--space-4);
    align-items: flex-start;
    justify-content: space-between;
    overflow-x: auto;
    padding: var(--space-6) 0;
}

.process-step {
    flex: 1;
    min-width: 150px;
    text-align: center;
    position: relative;
}

.process-step:not(:last-child)::after {
    content: '→';
    position: absolute;
    right: calc(-1 * var(--space-4));
    top: 30px;
    color: var(--color-gold);
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
}

.process-step__number {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--space-4);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-gold);
    color: var(--text-on-gold);
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    border-radius: var(--radius-full);
}

.process-step__title {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.process-step__description {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: var(--leading-normal);
}

@media (max-width: 768px) {
    .process-diagram {
        flex-direction: column;
    }

    .process-step:not(:last-child)::after {
        content: '↓';
        right: auto;
        left: 50%;
        top: auto;
        bottom: -20px;
        transform: translateX(-50%);
    }
}

/* ============================================================================
   SECTION HEADERS
   ============================================================================ */

.section-header {
    text-align: center;
    margin-bottom: var(--space-12);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-header__subtitle {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wider);
    color: var(--color-gold);
    margin-bottom: var(--space-3);
}

.section-header__title {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    margin-bottom: var(--space-4);
}

.section-header__description {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
}

/* ============================================================================
   FOOTER
   ============================================================================ */

.footer {
    background-color: var(--bg-dark);
    color: var(--text-on-dark);
    padding-top: var(--space-16);
    padding-bottom: var(--space-8);
}

.footer__grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--space-8);
    margin-bottom: var(--space-12);
}

.footer__column-title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-on-dark);
    margin-bottom: var(--space-4);
}

.footer__link {
    display: block;
    font-size: var(--text-base);
    color: var(--color-gray-medium);
    margin-bottom: var(--space-3);
    transition: color var(--duration-base) var(--ease-out);
}

.footer__link:hover {
    color: var(--color-gold);
}

.footer__bottom {
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-charcoal-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.footer__copyright {
    font-size: var(--text-sm);
    color: var(--color-gray-medium);
}

.footer__certifications {
    display: flex;
    gap: var(--space-4);
    align-items: center;
}

.footer__cert-badge {
    height: 40px;
    width: auto;
    filter: grayscale(100%) opacity(0.6);
    transition: all var(--duration-base) var(--ease-out);
}

.footer__cert-badge:hover {
    filter: grayscale(0%) opacity(1);
}


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

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

    .footer__bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* ============================================================================
   PORTFOLIO FILTER BUTTONS
   ============================================================================ */

.filter-btn {
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--text-secondary);
    background-color: var(--bg-secondary);
    border: 2px solid var(--color-gray-soft);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--duration-base) var(--ease-out);
    font-family: var(--font-primary);
}

.filter-btn:hover {
    border-color: var(--color-gold);
    color: var(--color-gold);
    transform: translateY(-2px);
}

.filter-btn--active {
    background-color: var(--color-gold);
    border-color: var(--color-gold);
    color: var(--text-on-gold);
}

.filter-btn--active:hover {
    background-color: var(--color-gold-dark);
    border-color: var(--color-gold-dark);
    transform: translateY(-2px);
}

/* Portfolio Items */
.portfolio-item {
    transition: opacity var(--duration-base) var(--ease-out),
        transform var(--duration-base) var(--ease-out);
}

.portfolio-item[style*="display: none"] {
    opacity: 0;
}