:root {
    --color-bg: #F5F6F8;
    --color-surface: #FFFFFF;

    --color-primary: #0477b5;
    --color-primary-dark: #144668;
    --color-accent: #c78b1c;

    /* Hover-/active-sävyt */
    --color-primary-hover: #1B6F9F;   /* hieman tummempi kuin primary */
    --color-primary-active: #1B5E8A;  /* sama kuin primary-dark */

    --color-accent-hover: #E09D1D;    /* aavistuksen tummempi/oranssimpi */
    --color-accent-active: #C88716;   /* selvästi tummempi painalluksessa */

    --link-color: #1B7FB5;
    --link-hover: #1B5E8A;

    --color-text: #2D3748;
    --color-text-muted: #424b4b;

    --color-border: #D1D5DB;
    --shadow-soft: 0 8px 20px rgba(0, 0, 0, 0.06);

    --radius-md: 8px;
    --radius-lg: 12px;

    --font-base: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font-base);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.6;
}

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

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

a:hover,
a:focus-visible {
    text-decoration: underline;
}

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

.container {
    width: min(1120px, 100% - 2rem);
    margin-inline: auto;
}

.skip-link {
    position: absolute;
    top: 0.5rem;
    left: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: var(--color-primary);
    color: #fff;
    border-radius: 4px;
    transform: translateY(-150%);
    transition: transform 0.15s ease-out;
    z-index: 1000;
}

.skip-link:focus-visible {
    transform: translateY(0);
}

.site-header {
    background-color: var(--color-surface);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    position: sticky;
    top: 0;
    z-index: 999;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-block: 0.75rem;
    gap: 1.5rem;
}

.logo {
    display: flex;
    flex-direction: column;
}

.logo-main {
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.logo-sub {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.main-nav {
    font-size: 0.95rem;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 20px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
}

.nav-toggle span {
    display: block;
    height: 2px;
    background-color: var(--color-text);
    border-radius: 2px;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

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

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

.nav-list {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    margin: 0;
    padding: 0;
}

.nav-list > li > a {
    display: inline-block;
    padding-block: 0.25rem;
    font-weight: 500;
}

.nav-list > li > a[aria-current="page"] {
    color: var(--color-primary-dark);
}

.nav-dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: var(--color-surface);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-soft);
    padding: 0.5rem 0;
    list-style: none;
    margin: 0.25rem 0 0;
    transition-delay: 40ms;
    visibility: hidden;
    opacity: 0;
}

.dropdown-menu li a {
    display: block;
    padding: 0.4rem 0.9rem;
    font-size: 0.95rem;
}

.dropdown-menu li a:hover,
.dropdown-menu li a:focus-visible {
    background-color: #f1f4f8;
    text-decoration: none;
}

.nav-dropdown:hover .dropdown-menu,
.nav-dropdown:focus-within .dropdown-menu {
    transition-delay: 40ms;
    visibility: visible;
    opacity: 1;
}

.hero-text {
    color: var(--color-surface);
}

.hero {
    position: relative;
    max-inline-size: 100%;
    display: flex;
    align-items: center;
    background-image: url("images/terassi_aurinko.webp");
    background-size: cover;
    background-position: center;
    background-color: rgba(11, 47, 74, 0.05);
    background-blend-mode: overlay;
    padding-block: 3.5rem 3rem;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    top: -5%;
    left: -5%;
    width: 110%;
    height: 110%;

    background-image: inherit;
    background-size: inherit;
    background-position: inherit;
    background-color: inherit;
    background-blend-mode: inherit;

    filter: blur(8px);
    mask-image: linear-gradient(to right, black 40%, transparent 70%);
    -webkit-mask-image: linear-gradient(to right, black 40%, transparent 70%);

    z-index: 0;
}

.hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to right,
        rgba(10, 30, 50, 0.62) 0%,
        rgba(10, 30, 50, 0.38) 55%,
        transparent 75%
    );
    z-index: 0;
    pointer-events: none;
}

.hero-inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(0, 1.5fr);
    gap: 2.5rem;
    align-items: center;
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.8rem;
    color: var(--color-surface);
    font-weight: 600;
    margin: 0 0 0.5rem;
}

h1,
h2,
h3 {
    line-height: 1.25;
    margin-top: 0;
}

h1 {
    font-size: clamp(1.9rem, 2.5vw + 1.3rem, 2.6rem);
    margin-bottom: 0.75rem;
}

h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--color-primary);
}

h3 {
    font-size: 1.2rem;
    margin-bottom: 0.4rem;
}

.lead {
    font-size: 1.05rem;
    color: var(--color-surface);
    margin-bottom: 1.5rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.hero-service-areas {
    font-size: 0.95rem;
    color: var(--color-surface);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.6rem 1.2rem;
    border-radius: 999px;
    border: 1px solid transparent;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: background-color 0.15s ease-out, color 0.15s ease-out, box-shadow 0.15s ease-out, transform 0.08s ease-out;
}

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

.btn-primary:hover,
.btn-primary:focus-visible {
    background-color: var(--color-accent-hover);
    border-color: var(--color-border);
    text-decoration: none;
}

.btn-primary:active {
    background-color: var(--color-accent-active);
}

.btn-secondary {
    background-color: var(--color-surface);
    border-color: var(--color-border);
    color: var(--color-text);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
    background-color: #eef2f7;
    text-decoration: none;
}

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

.btn-ghost:hover,
.btn-ghost:focus-visible {
    background-color: var(--color-primary-hover);
    text-decoration: none;
}

.hero-highlight {
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: 1.75rem 1.5rem;
    box-shadow: var(--shadow-soft);
}

.checklist {
    list-style: none;
    padding-left: 0;
    margin: 1rem 0 0;
}

.checklist li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.35rem;
}

.checklist li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 0;
    color: var(--color-accent);
    font-weight: 700;
}

.section-header {
    text-align: left;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 3px solid var(--color-accent);
}

.section-header p {
    color: var(--color-text-muted);
}

.services-preview {
    padding-block: 2.5rem 2.75rem;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 1.5rem;
}

.card {
    background-color: var(--color-surface);
    border-radius: var(--radius-md);
    padding: 1.2rem 1.15rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
    border: 1px solid rgba(0, 0, 0, 0.02);
    border-top: 4px solid var(--color-accent);
    transition: box-shadow 0.2s ease-out, transform 0.2s ease-out;
}

.card:hover {
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

.card p {
    margin-bottom: 0.75rem;
    color: var(--color-text-muted);
}

.card-link {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--color-primary);
    transition: color 0.2s ease-out;
}

.card:hover .card-link {
    color: var(--color-primary-dark);
}

.two-column {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
    align-items: start;
}

.content-with-sidebar {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 2rem;
    align-items: start;
}

.content-with-sidebar .sidebar img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-soft);
}

.content-with-sidebar .main-column article + article {
    margin-top: 2rem;
}

.about-preview {
    padding-block: 2.75rem 2.5rem;
}

.cta-section {
    padding-block: 2.5rem 2.75rem;
}

.cta-inner {
    background-color: var(--color-primary);
    color: #fff;
    border-radius: var(--radius-lg);
    padding: 1.75rem 1.5rem;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
}

.cta-inner p {
    max-width: 34rem;
}

.cta-inner h2 {
    color: #fff;
}

.cta-actions .btn-primary {
    background-color: var(--color-accent);
    border-color: #fff;
    color: #fff;
    box-shadow: none;
}

.cta-actions .btn-primary:hover,
.cta-actions .btn-primary:focus-visible {
    background-color: var(--color-accent-hover);
}

.site-footer {
    background-color: #141924;
    color: #e0e3ea;
    padding-top: 2rem;
    margin-top: 2rem;
}

.footer-inner {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(0, 1.4fr) minmax(0, 1.4fr);
    gap: 2rem;
    padding-bottom: 1.5rem;
}

.footer-logo {
    font-weight: 700;
    margin-bottom: 0.35rem;
}

.site-footer a {
    color: #e0e3ea;
}

.site-footer a:hover,
.site-footer a:focus-visible {
    color: #ffffff;
}

.footer-links ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-links li {
    margin-bottom: 0.3rem;
}

.footer-bottom {
    border-top: 1px solid #2b3240;
    padding-block: 0.9rem;
    font-size: 0.85rem;
    color: #9ba3b4;
}

main {
    padding-bottom: 1.5rem;
}

.page-header {
    background: linear-gradient(
        135deg, 
        var(--color-primary-hover), 
        var(--color-bg) 30%, 
        var(--color-accent-hover),
        transparent 150%
        );
    padding-block: 2.3rem 1rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.03);
}

.page-header p {
    
    color: var(--color-text);
}

.page-content {
    padding-block: 1rem 2rem;
}

.page-content-narrow {
    
    margin-inline: auto;
}

.service-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

.service-item {
    background-color: var(--color-surface);
    border-radius: var(--radius-md);
    padding: 1.2rem 1.1rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}

.service-meta {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.service-meta span + span::before {
    content: "•";
    margin-inline: 0.35rem;
}

.service-section {
    margin-bottom: 1.75rem;
}

form {
    display: grid;
    gap: 1rem;
}

.form-row {
    display: grid;
    gap: 0.4rem;
}

label {
    font-weight: 600;
    font-size: 0.95rem;
}

input[type="text"],
input[type="email"],
input[type="tel"],
textarea,
select {
    padding: 0.55rem 0.7rem;
    border-radius: 6px;
    border: 1px solid var(--color-border);
    font: inherit;
    width: 100%;
}

textarea {
    min-height: 140px;
    resize: vertical;
}

.form-help {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.status-message {
    border-radius: 6px;
    padding: 0.75rem 0.85rem;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.status-message.success {
    background-color: #e1f5e5;
    border: 1px solid #7ac58d;
    color: #205b2c;
}

.status-message.error {
    background-color: #fdeaea;
    border: 1px solid #f08a8a;
    color: #7a1f1f;
}

.required {
    color: #c0392b;
}

.policy-list {
    padding-left: 1.25rem;
}

.policy-list li {
    margin-bottom: 0.4rem;
}

.services-banner-wrapper {
    width: 100%;
    /* Kasvatetaan hieman korkeutta, jotta efekti pääsee oikeuksiinsa */
    /* TAI joustava clamp-arvo (minimi, tavoite, maksimi) */
    height: clamp(350px, 45vh, 550px);
     margin-block: 0.5rem; 
    
    /* Tämä on tärkein: se rajaa kiinteän kuvan näkyviin vain wrapperin sisällä */
    clip-path: inset(0); 
    position: relative;
    overflow: hidden;
}

.services-banner {
    position: fixed; /* Kuva pysyy paikoillaan suhteessa viewportiin */
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    
    /* Varmistetaan, että kuva pysyy muiden elementtien takana, 
       mutta wrapperin sisällä */
    z-index: -1; 
    
    /* Estetään kuvaa hyppimästä joissain selaimissa */
    will-change: transform;
}

.service-image {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    overflow: hidden;
    margin-bottom: 1.5rem;
}

.service-image img {
    width: 100%;
    height: auto;
    display: block;
}

.service-with-image {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 2rem;
    align-items: start;
}

.service-with-image .service-image {
    margin-bottom: 0;
}

/* Stats */
.stats {
display: flex;
gap: 1.25rem;
margin-bottom: 1.25rem;
align-items: center;
}
.stat {
background: var(--color-surface);
padding: 0.6rem 0.9rem;
border-radius: 8px;
text-align: center;
box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.stat-value {
font-weight: 700;
font-size: 1.15rem;
color: var(--color-primary);
}
.stat-label {
font-size: 0.85rem;
color: var(--color-text-muted);
}

@media (min-width: 1050px) {
    .content-with-sidebar .sidebar {
    position: sticky;
    top: calc(var(--header-height, 72px) + 1rem);
    align-self: start;
    }
}

@media (max-width: 768px) {

    .hero {
    background-image: url("images/terassi_aurinko_768.webp");
    }

    /* Tiivistetään bannerin välit mobiilissa lähes nollaan */
    .services-banner-wrapper {
        height: 250px; /* Matalampi profiili sopii paremmin pystyruudulle */
        margin-block: 0.25rem; /* Hyvin pieni rako tekstiin */
    }

    /* Pienennetään otsikkoalueen täytteitä, jotta teksti nousee ylös */
    .page-header {
        padding-block: 1.2rem 0.5rem; /* Yläreuna 1.2rem, alareuna vain 0.5rem */
    }

    /* Nostetaan varsinainen sisältö lähemmäs banneria */
    .page-content {
        padding-block: 0.5rem 1.5rem;
    }

    .services-banner {
        background-image: url("images/rakennus-banner_768.webp");
        /* Voit halutessasi palauttaa tavalliseksi mobiilissa suorituskyvyn vuoksi */
        /* Jos efekti tuntuu raskaalta mobiilissa, voit vaihtaa fixed -> absolute */
        position: absolute; 
        will-change: transform;
        height: 300px;
    }

    .nav-toggle {
        display: flex;
    }

    .service-with-image {
        grid-template-columns: 1fr;
    }

    .main-nav {
        display: none;
        width: 100%;
    }

    .main-nav.is-open {
        display: block;
    }

    .nav-list {
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
    }

    .nav-list > li {
        width: 100%;
        border-top: 1px solid var(--color-border);
    }

    .nav-list > li > a {
        display: block;
        padding: 0.65rem 0;
    }

    .dropdown-menu {
        position: static;
        box-shadow: none;
        border-radius: 0;
        padding-left: 1rem;
        visibility: visible;
        opacity: 1;
        transition: none;
        display: none; /* mobiilissa takaisin display-pohjaiseksi */
    }

    .nav-dropdown.is-open .dropdown-menu {
        display: block;
    }

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

    .hero-inner {
        grid-template-columns: 1fr;
    }

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

    .footer-inner {
        grid-template-columns: 1fr;
    }

    .content-with-sidebar {
        grid-template-columns: 1fr;
    }

    .content-with-sidebar .sidebar {
        max-width: 60%;
        margin: 0 auto 1.5rem;
    }

    .content-with-sidebar .sidebar img {
        max-height: 60%;
        object-fit: contain;
    }

    .stats { 
        flex-direction: row;
        gap: 0.75rem;
        overflow-x: auto;
    }

}