/* === RESET & BASE === */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-primary: #1a5276;
    --color-primary-light: #2471a3;
    --color-primary-dark: #0e3a55;
    --color-accent: #27ae60;
    --color-accent-light: #2ecc71;
    --color-cta: #e74c3c;
    --color-cta-hover: #c0392b;
    --color-bg: #f8f9fa;
    --color-bg-alt: #ffffff;
    --color-text: #2c3e50;
    --color-text-light: #5d6d7e;
    --color-text-muted: #95a5a6;
    --color-border: #e0e4e8;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: 0.3s ease;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-main);
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
    color: var(--color-primary-light);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* === NAWIGACJA === */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    transition: box-shadow var(--transition);
}

.nav--scrolled {
    box-shadow: var(--shadow-md);
}

.nav__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--color-primary);
    text-decoration: none;
}

.nav__logo-icon {
    display: flex;
    align-items: center;
    color: var(--color-accent);
}

.nav__toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.nav__toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition);
    border-radius: 2px;
}

.nav__toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav__toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav__toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.nav__menu {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav__menu a {
    display: block;
    padding: 8px 14px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.nav__menu a:hover {
    background: var(--color-bg);
    color: var(--color-primary);
}

.nav__cta {
    background: var(--color-cta) !important;
    color: #fff !important;
    font-weight: 600 !important;
    border-radius: 50px !important;
    padding: 8px 20px !important;
}

.nav__cta:hover {
    background: var(--color-cta-hover) !important;
}

/* Mobile nav */
@media (max-width: 768px) {
    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        flex-direction: column;
        background: #fff;
        padding: 90px 30px 30px;
        gap: 4px;
        box-shadow: var(--shadow-lg);
        transition: right var(--transition);
        align-items: stretch;
    }

    .nav__menu.active {
        right: 0;
    }

    .nav__menu a {
        font-size: 1.05rem;
        padding: 12px 16px;
    }
}

@media (min-width: 769px) {
    .nav__toggle {
        display: none;
    }
}

/* === HERO === */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: url('../img/header.jpg') center/cover no-repeat;
    padding: 120px 20px 60px;
}

.hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(26, 82, 118, 0.88) 0%, rgba(14, 58, 85, 0.75) 100%);
}

.hero__content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
}

.hero__title {
    font-family: var(--font-display);
    font-size: clamp(2.2rem, 6vw, 4rem);
    font-weight: 700;
    color: #fff;
    line-height: 1.15;
    margin-bottom: 16px;
}

.hero__accent {
    color: var(--color-accent-light);
}

.hero__location {
    display: inline-block;
    background: rgba(46, 204, 113, 0.2);
    border: 1px solid rgba(46, 204, 113, 0.4);
    color: var(--color-accent-light);
    padding: 6px 20px;
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 16px;
}

.hero__subtitle {
    font-size: clamp(1rem, 2.5vw, 1.2rem);
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.6;
    margin-bottom: 32px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero__buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* === BUTTONS === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 50px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    line-height: 1.4;
}

.btn--primary {
    background: var(--color-cta);
    color: #fff;
    border-color: var(--color-cta);
}

.btn--primary:hover {
    background: var(--color-cta-hover);
    border-color: var(--color-cta-hover);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(231, 76, 60, 0.4);
}

.btn--outline {
    background: transparent;
    color: #fff;
    border-color: rgba(255, 255, 255, 0.5);
}

.btn--outline:hover {
    background: #fff;
    color: var(--color-primary);
    border-color: #fff;
}

.btn--small {
    padding: 8px 18px;
    font-size: 0.85rem;
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
    border-radius: 50px;
    margin-top: 8px;
}

.btn--small:hover {
    background: var(--color-primary);
    color: #fff;
}

/* === SECTIONS === */
.section {
    padding: 80px 0;
}

.section__title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    text-align: center;
    color: var(--color-primary-dark);
    margin-bottom: 12px;
}

.section__subtitle {
    text-align: center;
    color: var(--color-text-light);
    font-size: 1.05rem;
    max-width: 600px;
    margin: 0 auto 48px;
    line-height: 1.6;
}

/* === SERVICES === */
.services {
    background: var(--color-bg-alt);
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

@media (min-width: 769px) {
    .services__grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.service-card {
    background: var(--color-bg);
    padding: 32px 24px;
    border-radius: var(--radius);
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--color-border);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-accent);
}

.service-card__icon {
    margin-bottom: 16px;
    display: flex;
    justify-content: center;
}

.service-card__icon svg {
    padding: 12px;
    border-radius: 12px;
}

.service-card--water .service-card__icon svg {
    color: #2980b9;
    background: rgba(41, 128, 185, 0.1);
}

.service-card--heat .service-card__icon svg {
    color: #e67e22;
    background: rgba(230, 126, 34, 0.1);
}

.service-card--cool .service-card__icon svg {
    color: #3498db;
    background: rgba(52, 152, 219, 0.1);
}

.service-card--pump .service-card__icon svg {
    color: #27ae60;
    background: rgba(39, 174, 96, 0.1);
}

.service-card--air .service-card__icon svg {
    color: #16a085;
    background: rgba(22, 160, 133, 0.1);
}

.service-card--design .service-card__icon svg {
    color: #8e44ad;
    background: rgba(142, 68, 173, 0.1);
}

.service-card__title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: 8px;
}

.service-card__text {
    font-size: 0.93rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

.services__note {
    background: var(--color-primary);
    color: #fff;
    padding: 24px 32px;
    border-radius: var(--radius);
    text-align: center;
    font-size: 0.95rem;
    line-height: 1.6;
}

.services__note a {
    color: var(--color-accent-light);
}

/* === WHY US === */
.why-us {
    background: var(--color-bg);
}

.why-us__stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.stat-block {
    background: var(--color-primary);
    color: #fff;
    border-radius: var(--radius);
    padding: 32px;
    text-align: center;
}

.stat-block__number {
    display: block;
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    color: var(--color-accent-light);
    line-height: 1.1;
}

.stat-block__label {
    display: block;
    font-size: 1.1rem;
    font-weight: 600;
    margin-top: 4px;
    margin-bottom: 8px;
}

.stat-block__text {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.5;
}

.why-us__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 24px;
}

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

.why-card {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 24px;
    transition: var(--transition);
}

.why-card:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-sm);
}

.why-card__title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: 8px;
}

.why-card__text {
    font-size: 0.93rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

.why-card__text a {
    color: var(--color-primary);
    text-decoration: underline;
}

.why-us__membership {
    text-align: center;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--color-text);
    margin-top: 8px;
}

.why-us__membership a {
    color: var(--color-primary);
    font-weight: 700;
    text-decoration: underline;
    text-underline-offset: 3px;
}

/* === GALLERY === */
.gallery {
    background: var(--color-bg-alt);
}

.gallery__category {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 20px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--color-accent);
    display: inline-block;
}

.gallery__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
    margin-bottom: 48px;
}

.gallery__item {
    position: relative;
    aspect-ratio: 4/3;
    border-radius: var(--radius-sm);
    overflow: hidden;
    cursor: pointer;
    display: block;
}

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

.gallery__item:hover img {
    transform: scale(1.05);
}

.gallery__item-overlay {
    position: absolute;
    inset: 0;
    background: rgba(26, 82, 118, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition);
    color: #fff;
}

.gallery__item:hover .gallery__item-overlay {
    opacity: 1;
}

/* === FAQ === */
.faq {
    background: var(--color-bg);
}

.faq__list {
    max-width: 800px;
    margin: 0 auto;
}

.faq__item {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
    transition: var(--transition);
}

.faq__item[open] {
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-sm);
}

.faq__question {
    padding: 18px 24px;
    font-weight: 600;
    font-size: 1rem;
    color: var(--color-primary-dark);
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.faq__question::-webkit-details-marker {
    display: none;
}

.faq__question::after {
    content: '+';
    font-size: 1.4rem;
    font-weight: 300;
    color: var(--color-accent);
    flex-shrink: 0;
    transition: var(--transition);
}

.faq__item[open] .faq__question::after {
    content: '−';
    color: var(--color-primary);
}

.faq__answer {
    padding: 0 24px 18px;
    font-size: 0.93rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* === CONTACT === */
.contact {
    background: var(--color-primary);
    color: #fff;
}

.contact .section__title {
    color: #fff;
}

.contact .section__subtitle {
    color: rgba(255, 255, 255, 0.8);
}

.contact__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 40px;
}

.contact-card {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius);
    padding: 32px;
    transition: var(--transition);
}

.contact-card:hover {
    background: rgba(255, 255, 255, 0.15);
}

.contact-card--primary {
    border-color: var(--color-accent);
    background: rgba(46, 204, 113, 0.1);
}

.contact-card__badge {
    display: inline-block;
    background: var(--color-accent);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 4px 12px;
    border-radius: 50px;
    margin-bottom: 12px;
}

.contact-card__name {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.contact-card__info {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.contact-card__link {
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
    transition: color var(--transition);
}

.contact-card__link:hover {
    color: var(--color-accent-light);
}

.contact__address {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    justify-content: center;
    color: rgba(255, 255, 255, 0.9);
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.contact__address > svg {
    flex-shrink: 0;
    align-self: center;
}

.contact__address-link {
    color: #fff;
    font-weight: 600;
    font-size: 1.05rem;
}

.contact__address-link:hover {
    color: var(--color-accent-light);
}

.contact__address .btn--small {
    border-color: rgba(255, 255, 255, 0.4);
    color: #fff;
}

.contact__address .btn--small:hover {
    background: #fff;
    color: var(--color-primary);
    border-color: #fff;
}

/* === MAP === */
.map-section {
    padding: 60px 0 0;
    background: var(--color-bg);
}

.map-section .section__title {
    margin-bottom: 8px;
}

.map-section .section__subtitle {
    margin-bottom: 32px;
}

.map-section__embed {
    width: 100%;
    line-height: 0;
}

.map-section__embed iframe {
    width: 100%;
    height: 400px;
}

/* === FOOTER === */
.footer {
    background: var(--color-primary-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 40px 0 24px;
}

.footer__top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}

.footer__logo {
    font-size: 1.3rem;
    font-weight: 700;
    color: #fff;
}

.footer__tagline {
    font-size: 0.85rem;
    margin-top: 4px;
}

.footer__social {
    display: flex;
    gap: 12px;
}

.footer__social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    transition: var(--transition);
}

.footer__social-link:hover {
    background: var(--color-accent);
    color: #fff;
    transform: translateY(-2px);
}

.footer__areas {
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    font-size: 0.85rem;
    line-height: 1.8;
}

.footer__bottom {
    text-align: center;
    padding-top: 20px;
    font-size: 0.8rem;
}

/* === LIGHTBOX === */
.lightbox {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(0, 0, 0, 0.92);
    align-items: center;
    justify-content: center;
}

.lightbox.active {
    display: flex;
}

.lightbox__content {
    max-width: 90vw;
    max-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox__img {
    max-width: 100%;
    max-height: 85vh;
    object-fit: contain;
    border-radius: var(--radius-sm);
}

.lightbox__close {
    position: absolute;
    top: 16px;
    right: 20px;
    background: none;
    border: none;
    color: #fff;
    font-size: 2.5rem;
    cursor: pointer;
    z-index: 2001;
    line-height: 1;
    padding: 8px;
    transition: var(--transition);
}

.lightbox__close:hover {
    color: var(--color-cta);
}

.lightbox__prev,
.lightbox__next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: #fff;
    cursor: pointer;
    padding: 16px 12px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    z-index: 2001;
}

.lightbox__prev { left: 16px; }
.lightbox__next { right: 16px; }

.lightbox__prev:hover,
.lightbox__next:hover {
    background: rgba(255, 255, 255, 0.25);
}

/* === ANIMATIONS === */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* === RESPONSIVE === */
@media (max-width: 480px) {
    .section {
        padding: 60px 0;
    }

    .hero {
        min-height: 90vh;
        padding: 100px 16px 40px;
    }

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

    .btn {
        width: 100%;
        justify-content: center;
    }

    .gallery__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }

    .contact__grid {
        grid-template-columns: 1fr;
    }

    .map-section__embed iframe {
        height: 300px;
    }

    .footer__top {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (min-width: 481px) and (max-width: 768px) {
    .gallery__grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 769px) {
    .gallery__grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 1024px) {
    .gallery__grid {
        grid-template-columns: repeat(5, 1fr);
    }
}

/* ZESPÓŁ */
.team {
    background: var(--color-bg);
}

.team__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    margin-top: 32px;
}

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

.team-card {
    background: white;
    padding: 32px 28px;
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

.team-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-accent);
}

.team-card__avatar {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 96px;
    height: 96px;
    border-radius: 50%;
    background: rgba(46, 204, 113, 0.1);
    color: var(--color-accent);
    margin-bottom: 20px;
}

.team-card__name {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    margin: 0 0 4px;
}

.team-card__role {
    font-size: 0.95rem;
    color: var(--color-accent);
    font-weight: 600;
    margin: 0 0 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.team-card__bio {
    color: var(--color-text);
    line-height: 1.65;
    margin: 0 0 20px;
}

.team-card__contact {
    padding-top: 16px;
    border-top: 1px solid var(--color-border);
}

.team-card__link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--color-primary);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
}

.team-card__link:hover {
    color: var(--color-accent);
}