:root {
    /* Färger - Utökad palett */
    --primary: #0f172a;     /* Mörkblå/Svart */
    --primary-light: #1e293b;
    
    --accent: #c2410c;      /* Grund Orange */
    --accent-dark: #9a3412; /* Mörkare Orange för gradients */
    --accent-light: #fff7ed; /* Mycket ljus orange */
    
    --white: #ffffff;
    --bg-light: #f8fafc;    /* Ljus bakgrund */
    --text-dark: #1e293b;   /* Huvudtext */
    --text-muted: #64748b;  /* Sekundär text */

    /* Skuggor & Effekter */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --glass-border: 1px solid rgba(255, 255, 255, 0.2);

    /* Spacing & Layout */
    --section-spacing: clamp(4rem, 8vw, 8rem); /* Responsiv spacing */
    --container-width: 75rem; /* Bredare container för modern look */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
}

/* --- Grundinställningar --- */
*, *::before, *::after { box-sizing: margin: 0;border-box;padding: 0; }
html { scroll-behavior: smooth; font-size: 100%; }
body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.7;
    overflow-x: hidden;
}

/* Förhindra scroll när mobilmenyn är öppen */
body.no-scroll { overflow: hidden; }

/* --- Utilities --- */
.container {
    width: min(90%, var(--container-width));
    margin-inline: auto;
}
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); border: 0; }
.text-gradient {
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}
.text-white { color: var(--white) !important; }
.text-white-opacity { color: rgba(255,255,255,0.85); }
.text-center { text-align: center; }

/* --- Typography --- */
h1, h2, h3 { color: var(--primary); line-height: 1.1; font-weight: 800; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: 1.5rem; }
p { margin-bottom: 1.5rem; }

.section-header { margin-bottom: clamp(2rem, 4vw, 4rem); }
.section-lead { font-size: 1.25rem; color: var(--text-muted); max-width: 60ch; }

/* --- Knappar --- */
.btn {
    padding: 1em 2em;
    border-radius: var(--radius-md);
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    font-size: 1rem;
    cursor: pointer;
}
.btn-primary { background: var(--accent); color: var(--white); box-shadow: 0 4px 14px 0 rgba(194, 65, 12, 0.39); }
.btn-primary:hover { background: var(--accent-dark); transform: translateY(-2px); }

/* Ny knapptyp för mörka bakgrunder */
.btn-outline-white {
    border-color: var(--white);
    color: var(--white);
    background: transparent;
}
.btn-outline-white:hover { background: rgba(255,255,255,0.1); }

.btn-white {
    background: var(--white);
    color: var(--accent);
    font-weight: 700;
    box-shadow: var(--shadow-md);
}
.btn-white:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }


/* =========================================
   SEKTIONER
========================================= */

/* --- Navigation --- */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(1rem);
    -webkit-backdrop-filter: blur(1rem); /* Safari support */
    border-bottom: 1px solid rgba(0,0,0,0.05);
    z-index: 1000;
    padding-block: 1rem;
}
.nav-content { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 1.5rem; font-weight: 800; text-decoration: none; color: var(--primary); letter-spacing: -0.03em; }
.logo span { color: var(--accent); }

/* Mobil Toggle Knapp */
.mobile-nav-toggle {
    display: none; /* Göm på desktop */
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 2000;
}
.ham-bar { width: 25px; height: 3px; background: var(--primary); margin: 5px 0; transition: 0.4s; border-radius: 2px;}

/* --- Hero Sektion (Moderniserad) --- */
.hero {
    position: relative;
    /* Lägg in din bild här */
    background-image: url('bygg_attefall.png'); 
    background-size: cover;
    background-position: center;
    background-color: var(--primary); /* Fallback */
    min-height: 90vh; /* Tar upp nästan hela skärmhöjden */
    display: flex;
    align-items: center;
    margin-top: -30px; /* Dra upp bakom nav */
    padding-top: 150px; /* Kompensera för nav */
    padding-bottom: var(--section-spacing);
}

/* Mörkt överlägg på hero-bilden */
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.5));
    z-index: 1;
}

.hero-container { position: relative; z-index: 2; } 
.hero-text { max-width: 650px; }
.hero-text h1, .hero-text p { color: var(--white); }
.roi-badge {
    display: inline-block;
    background: rgba(194, 65, 12, 0.2);
    color: var(--accent);
    border: 1px solid var(--accent);
    padding: 0.25em 0.75em;
    border-radius: 2rem;
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    letter-spacing: 0.05em;
}
.hero-lead { font-size: clamp(1.1rem, 2vw, 1.35rem); color: rgba(255,255,255,0.9); margin-bottom: 2.5rem; }
.cta-group { display: flex; gap: 1rem; flex-wrap: wrap; }


/* --- ORANGE THEME SECTION (Används för både Process & Contact) --- */
.orange-theme-section {
    padding-block: var(--section-spacing);
    background: linear-gradient(135deg, var(--accent-dark), var(--accent));
    position: relative;
    overflow: hidden;
}

/* Dekorativa "blobs" */
.orange-theme-section::before {
    content: '';
    position: absolute;
    top: -20%; right: -10%;
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 70%);
    border-radius: 50%;
    pointer-events: none;
}

.orange-theme-section h2 { color: var(--white); text-align: center; }
.orange-theme-section h2 span { color: rgba(255,255,255,0.8); }

.process-intro {
    max-width: 800px;
    margin: 0 auto clamp(3rem, 6vw, 5rem);
    text-align: center;
}
.process-lead { font-size: 1.5rem; font-weight: 600; }
.process-benefits {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2rem;
    font-weight: 600;
}
.check-icon { color: var(--white); background: rgba(255,255,255,0.2); padding: 2px; border-radius: 50%; margin-right: 5px;}


/* --- PROCESS GRID (Layouten du frågade om) --- */
.process-grid {
    display: grid;
    /* Tvinga 2 kolumner (1&2 över, 3&4 under) */
    grid-template-columns: repeat(2, 1fr); 
    gap: 1.5rem;
    margin-bottom: 4rem;
    /* Centrera hela gridden */
    max-width: 900px; 
    margin-inline: auto;
}


/* --- GLASSMORPHISM KORT (Gemensam för Process och Contact) --- */
.glass-card {
    background: rgba(255, 255, 255, 0.1); /* Mycket transparent vit */
    backdrop-filter: blur(12px); /* "Frostat glas" effekt */
    -webkit-backdrop-filter: blur(12px); /* Safari */
    border: var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    transition: transform 0.3s ease, background 0.3s ease;
    color: var(--white);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.glass-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
}

.step-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: rgba(255,255,255,0.2);
    margin-bottom: 1rem;
    line-height: 1;
}

.glass-card h3 { color: var(--white); margin-bottom: 1rem; font-size: 1.35rem;}
.glass-card p { color: rgba(255,255,255,0.85); margin-bottom: 0; }
.process-cta-container { text-align: center; }

/* --- KONTAKT SEKTION SPECIFIKT --- */
.contact-grid {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    max-width: 900px;
    margin-inline: auto;
}

/* Kontaktkorten ska se ut som knappar men kännas som glas-korten */
.contact-card {
    text-decoration: none; /* Ta bort länk-understrykning */
    text-align: center;
    align-items: center;
    min-width: 280px;
    cursor: pointer;
}

.contact-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: rgba(255,255,255,0.2);
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.contact-card p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.btn-text {
    margin-top: auto; /* Tryck ner texten till botten */
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.9rem;
    color: var(--white);
    border-bottom: 2px solid rgba(255,255,255,0.3);
    padding-bottom: 2px;
}


/* --- FAQ SEKTION --- */
.faq-section { padding-block: var(--section-spacing); }
.faq-grid { max-width: 800px; margin: 0 auto; }
.faq-item {
    margin-bottom: 1rem;
    border: 1px solid #e2e8f0;
    border-radius: var(--radius-md);
    background: var(--white);
    overflow: hidden;
    transition: all 0.3s ease;
}
/* Centrera rubrik och undertext i FAQ */
.faq-section .section-header {
    display: flex;
    flex-direction: column;
    align-items: center; /* Centrerar elementen horisontellt */
    text-align: center;  /* Centrerar själva textraderna */
}

.faq-section .section-lead {
    margin-left: auto;
    margin-right: auto;
    /* Säkerställer att undertexten inte drar åt sidan om den har en max-width */
}

.faq-item:hover { border-color: var(--accent-dark); box-shadow: var(--shadow-sm); }

.faq-btn {
    width: 100%;
    padding: 1.5rem;
    background: none;
    border: none;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-align: left;
}
.chevron { transition: transform 0.3s ease; color: var(--accent); }
.faq-btn[aria-expanded="true"] .chevron { transform: rotate(180deg); }

.faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.faq-content-inner { padding: 0 1.5rem 1.5rem 1.5rem; color: var(--text-muted); }


/* --- Footer --- */
footer {
    padding-block: 3rem;
    text-align: center;
    background: var(--primary);
    color: var(--text-muted);
}
.footer-logo { color: var(--white); margin-bottom: 1rem; display: inline-block; }
.section-header {
    text-align: center;
}

/* =========================================
   RESPONSIV DESIGN (MEDIA QUERIES)
========================================= */

/* Tablet och neråt (under ca 800px) */
@media (max-width: 50rem) {
    /* Process Grid ändras till 1 kolumn (stacked) */
    .process-grid {
        grid-template-columns: 1fr; 
    }

    /* Visa hamburgermenyn */
    .mobile-nav-toggle { display: block; }

    /* Göm den vanliga menyn och styla den som en "låda" */
    .nav-links {
        position: fixed;
        inset: 0;
        background: var(--white);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        transform: translateX(100%);
        transition: transform 0.3s ease-in-out;
        z-index: 1999;
        padding: 2rem;
    }

    .nav-links.active { transform: translateX(0); }

    /* Animera hamburgaren */
    .mobile-nav-toggle[aria-expanded="true"] .ham-bar:nth-child(2) { transform: rotate(45deg) translate(5px, 6px); }
    .mobile-nav-toggle[aria-expanded="true"] .ham-bar:nth-child(3) { opacity: 0; }
    .mobile-nav-toggle[aria-expanded="true"] .ham-bar:nth-child(4) { transform: rotate(-45deg) translate(5px, -6px); }
    
    .hero-text { text-align: center; margin: auto; }
    .cta-group { justify-content: center; }
    .process-intro { text-align: left; }
    .process-benefits { justify-content: flex-start; }
}

/* Mobil (under ca 480px) */
@media (max-width: 30rem) {
    .btn { width: 100%; }
    .cta-group { flex-direction: column; gap: 0.75rem;}
    .glass-card { padding: 1.5rem; }
    .contact-card { min-width: 100%; } /* Kontaktkorten tar hela bredden */
}