/* css/style.css */

/* 1. Variabler och designsystem */
:root {
    --bg-color: #0f172a;       /* Djup slate-blå */
    --card-bg: #1e293b;        /* Ljusare slate-blå för kort */
    --card-border: #334155;    /* Subtil kantfärg */
    --text-primary: #f8fafc;   /* Nera vit */
    --text-secondary: #94a3b8; /* Slate-grå för sekundär text */
    --accent-blue: #3b82f6;    /* Primärblå */
    --accent-emerald: #10b981; /* Grön för till salu/shop */
    --btn-hover: #2563eb;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --transition-speed: 0.25s;
    --border-radius: 12px;
}

/* 2. Globala stilar och reset */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    width: 100%;
}

/* 3. Header */
header {
    padding: 3rem 0 2rem 0;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--card-border);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
}

h1 {
    font-size: 2.25rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    background: linear-gradient(135deg, #fff 0%, #94a3b8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-top: 0.25rem;
    font-weight: 400;
}

/* Språkväljarknapp */
.lang-switch {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--card-border);
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
}

.lang-switch:hover {
    color: var(--text-primary);
    border-color: var(--text-secondary);
    background-color: rgba(255, 255, 255, 0.05);
}

/* 4. Huvudinnehåll och filter */
main {
    flex: 1;
    padding: 3rem 0;
}

.filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 3rem;
}

.filter-btn {
    background-color: var(--card-bg);
    color: var(--text-secondary);
    border: 1px solid var(--card-border);
    padding: 0.6rem 1.2rem;
    border-radius: 9999px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
}

.filter-btn:hover {
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

.filter-btn.active {
    background-color: var(--accent-blue);
    color: #fff;
    border-color: var(--accent-blue);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

/* 5. Projekt-grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
    transition: all var(--transition-speed) ease;
}

/* Projektkort */
.project-card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: transform var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1),
                border-color var(--transition-speed) ease;
}

.project-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 12px 24px -10px rgba(0, 0, 0, 0.5);
}

/* Bildbehållare */
.card-image-container {
    position: relative;
    width: 100%;
    height: 180px;
    overflow: hidden;
    background-color: #0b0f19;
}

.card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.project-card:hover .card-image {
    transform: scale(1.05);
}

/* Fallback-bilder med tonade övergångar */
.card-image-fallback {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.fallback-letter {
    font-size: 3.5rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.25);
    user-select: none;
}

/* Färgstarka tonade fallbacks */
.fallback-gradient-1 { background: linear-gradient(135deg, #1e3a8a, #3b82f6); }
.fallback-gradient-2 { background: linear-gradient(135deg, #065f46, #10b981); }
.fallback-gradient-3 { background: linear-gradient(135deg, #7c2d12, #f97316); }
.fallback-gradient-4 { background: linear-gradient(135deg, #581c87, #8b5cf6); }
.fallback-gradient-5 { background: linear-gradient(135deg, #831843, #ec4899); }

/* Kategori-badge uppe på bilden */
.card-category-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background-color: rgba(15, 23, 42, 0.75);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    color: var(--text-primary);
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Kortinnehåll */
.card-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.card-description {
    color: var(--text-secondary);
    font-size: 0.925rem;
    margin-bottom: 1.25rem;
    flex-grow: 1;
}

/* Taggar */
.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tag {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    font-size: 0.75rem;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    font-weight: 500;
}

/* Länkknappar */
.card-links {
    display: flex;
    gap: 0.75rem;
    margin-top: auto;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    flex: 1;
    text-align: center;
}

.btn-primary {
    background-color: var(--accent-blue);
    color: #fff;
    border: 1px solid var(--accent-blue);
}

.btn-primary:hover {
    background-color: var(--btn-hover);
    border-color: var(--btn-hover);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--card-border);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: var(--text-secondary);
}

.btn-shop {
    background-color: transparent;
    color: var(--accent-emerald);
    border: 1px solid var(--accent-emerald);
}

.btn-shop:hover {
    background-color: var(--accent-emerald);
    color: #fff;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.2);
}

/* 6. Footer */
footer {
    padding: 2.5rem 0;
    border-top: 1px solid var(--card-border);
    margin-top: 5rem;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

#footer-contact {
    margin-top: 0.5rem;
}

.footer-email {
    color: var(--accent-blue);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-speed) ease;
}

.footer-email:hover {
    color: var(--text-primary);
    text-decoration: underline;
}

/* 7. Felmeddelanden och tomma tillstånd */
.error-msg, .no-projects-msg {
    grid-column: 1 / -1;
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
    border: 1px dashed var(--card-border);
    border-radius: var(--border-radius);
    font-size: 1rem;
}

/* 8. Animationer */
.animate-fade-in {
    animation: fadeIn 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 9. Responsivitet för mindre skärmar */
@media (max-width: 640px) {
    header {
        padding: 2rem 0 1.5rem 0;
    }
    
    .header-container {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .lang-switch {
        align-self: flex-end;
    }

    h1 {
        font-size: 1.75rem;
    }
    
    .filters {
        margin-bottom: 2rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}