/* =============================
   Fonts
============================= */
@font-face {
    font-family: "Cinzel";
    src: url("../assets/fonts/Cinzel-VariableFont_wght.ttf");
}

/* =============================
   Root Variabelen
   (Custom Properties)
   Worden gebruikt als vaste waarden voor kleuren,
   spacing, typografie en animaties.
   Dit zorgt voor consistentie en makkelijker onderhoud.
============================= */
:root {
    --color-primary: #002646;
    --color-secondary: #ffffff;
    --color-accent: #d8b66a;
    --color-inactive: #E9E9E9;
    --color-inactive-dark: #6E6E6E;

    --spacing-m: 1.875rem;                          /* custom property voor spacing */
    --spacing-s: calc(var(--spacing-m) / 2);        /* custom property voor spacing */

    --animation-duration: 0.3s;

    --font-size-xxl: 4rem;                          /* custom property voor XXL font-size */
    --font-size-xl: 3rem                           /* custom property voor XL font-size */
    --font-size-l: 2rem;                          /* custom property voor L font-size */
    --font-size-m: 1.5rem;                      /* custom property voor M font-size */
    --font-size-s: 1rem;                        /* custom property voor S font-size */
}

/* =============================
   Algemene reset
   (Cascade: basisregels voor alle elementen)
============================= */
*,
*::before,
*::after {
    box-sizing: border-box;                             /* consistente box-sizing */
    margin: 0;                                          /* reset browser default */
    padding: 0;
}

body {
    font-family: Arial, Helvetica, sans-serif;          /* globale font (cascade) */
    color: var(--color-primary);                        /* custom property */   
    background-color: var(--color-secondary);           /* custom property */
    line-height: 1.6;
    padding-inline: var(--spacing-m);                   /* spacing via styleguide */
}

/* =============================
   Typografie
============================= */
h1 {
    font-size: var(--font-size-xl);                /* spacing via styleguide */
    font-family: "Cinzel";                        /* custom heading font */
}

@media (min-width: 900px) {
    h1 { font-size: var(--font-size-xxl); }       /* cascade: media query overschrijft */
}

h2 {
    font-size: var(--font-size-l);                /* styleguide */
    text-transform: uppercase;
    font-weight: 400;
}

h3 { font-size: var(--font-size-m); }              /* styleguide */

p {
    font-size: var(--font-size-s);                  /* styleguide */
    font-weight: 400;
    line-height: 1.4;
}

/* =============================
   Links & Buttons
   (Specificity: class selectors)
============================= */
a {
    font-size: var(--font-size-s);                        /* styleguide */
    text-decoration: none;
    color: var(--color-primary);                           /* custom property */
    display: grid;
    grid-template-columns: max-content min-content;
    gap: 0.5rem;

    &.button {
        width: max-content;
        padding: 1rem;
        border-radius: 100px;
        border: 0;
        gap: 1.5rem;
        margin-block: var(--spacing-s);                              /* spacing via custom property */
        transition: all var(--animation-duration) ease;              /* animatie via styleguide */

        &.primary {
            background-color: var(--color-primary);                  /* custom property */
            color: var(--color-secondary);
        }

        &.secondary {
            background-color: var(--color-secondary);
            border: 1px solid var(--color-primary);
        }
    }
}

/* =============================
   Header
   (Specificity: element + descendant selectors)
============================= */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    background-color: var(--color-primary);                   /* custom property */
    border-bottom: 2px solid #eaeaea;

    img { height: 60px; }                                    /* vaste header-afbeelding */

    nav {
        ul {
            list-style: none;
            display: flex;
            gap: 30px;

            li {
                a {
                    text-decoration: none;
                    color: var(--color-secondary);          /* cascade: header overschrijft link */
                    font-weight: bold;
                    transition: color var(--animation-duration);     /* cascade: hover overschrijft */

                    &:hover { color: var(--color-accent); }
                }
            }
        }
    }

    .hamburger {
        display: none;
        flex-direction: column;
        justify-content: space-between;
        width: 30px;
        height: 21px;
        background: none;
        border: none;
        cursor: pointer;

        span {
            display: block;
            height: 3px;
            width: 100%;
            background-color: var(--color-primary);          /* custom property */
            border-radius: 2px;
        }
    }

    @media (max-width: 768px) {
        flex-direction: column;                            /* responsive layout */
        align-items: flex-start;

        nav ul {
            flex-direction: column;                       /* cascade: media query */
            gap: 10px;
        }

        .hamburger { display: flex; }

        &.menu ul {
            display: none;
            flex-direction: column;
            gap: 10px;
            background-color: var(--color-secondary);
            position: absolute;
            top: 60px;
            right: 20px;
            padding: 10px;
            box-shadow: 0 0 10px rgba(0,0,0,0.2);
            border-radius: 5px;

            &.active { display: flex; }
        }
    }
}

/* =============================
   Hero / Slideshow
   (Animatie + cascade)
============================= */
.hero {
    position: relative;
    width: 100%;
    height: 400px;
    overflow: hidden;

    .slideshow {
        position: relative;
        width: 100%;
        height: 100%;

        figure {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            margin: 0;
            opacity: 0;                               /* basisstijl */
            animation: slideAnimation 12s infinite;    /* animatie */

            &:nth-child(1) { animation-delay: 0s; }
            &:nth-child(2) { animation-delay: 4s; }
            &:nth-child(3) { animation-delay: 8s; }

            img {
                width: 100%;
                height: 100%;
                object-fit: cover;
            }
        }
    }

    .hero-text {
        position: absolute;
        bottom: 20px;
        left: 20px;
        color: var(--color-secondary);                           /* custom property */
        text-shadow: 0 0 10px rgba(0,0,0,0.7);
    }
}

@keyframes slideAnimation {
    0% { opacity: 0; }
    8% { opacity: 1; }                                     /* zichtbaar */
    33% { opacity: 1; }
    41% { opacity: 0; }                                     /* overgang */
    100% { opacity: 0; }
}

/* =============================
   Cards
   (Specificity: class selectors)
============================= */
.cards-container {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    padding: 40px 0;

    h2 {
        width: 100%;
        margin-bottom: 20px;
        text-align: center;
    }

    .card {
        border-radius: 12px;
        overflow: hidden;
        padding: 20px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        color: var(--color-secondary);                     /* custom property */
        transition: transform var(--animation-duration) ease, box-shadow var(--animation-duration) ease;
        cursor: pointer;

        img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 8px;
            margin-bottom: 12px;
        }

        h3 { text-align: center; font-size: var(--font-size-s); }

        &:hover {
            transform: translateY(-8px) scale(1.03);               /* cascade: hover state */
            box-shadow: 0 12px 20px rgba(0,0,0,0.15);
        }

        &:nth-child(3n+1) { background-color: #0077b6; width: 250px; height: 250px; }
        &:nth-child(3n+2) { background-color: #023e8a; width: 300px; height: 200px; }
        &:nth-child(3n)   { background-color: #0096c7; width: 200px; height: 300px; }
    }

    @media (max-width: 768px) {
        flex-direction: column;
        padding: 20px 0;

        .card { width: 90%; height: auto; }
    }
}

/* =============================
   Footer
    (Cascade + Custom Properties)
============================= */
footer {
    background-color: var(--color-primary);           /* custom property */
    color: var(--color-secondary);                      /* custom property */
    padding: 40px 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: space-between;

    section { flex: 1 1 200px; }

    h3 { margin-bottom: 10px; font-size: var(--font-size-m); }

    ul {
        list-style: none;
        display: flex;
        flex-direction: column;
        gap: 10px;

        li a {
            text-decoration: none;
            color: var(--color-secondary);                /* cascade */
            transition: color var(--animation-duration);

            &:hover { color: var(--color-accent); }       /* cascade: hover overschrijft */
        }
    }

    form {
        display: flex;                                 /* flex layout voor formulier */
        flex-direction: column;                        /* elementen onder elkaar */
        gap: 10px;                                     /* consistente spacing */

        input[type="email"] {
            padding: 8px 12px;                        /* interne spacing */
            border-radius: 6px;                       /* afgeronde hoeken */
            border: 1px solid var(--color-secondary);  /* custom property: kleur */
            outline: none;
            font-size: var(--font-size-s);              /* styleguide font-size */
            transition: border-color var(--animation-duration); /* animatie via custom property */

            &:focus { border-color: var(--color-accent); }  /* cascade: focus overschrijft border */
        }

        button[type="submit"] {
            padding: 8px 12px;
            border-radius: 6px;
            border: none;
            background-color: var(--color-accent);         /* custom property */
            color: var(--color-primary);                   /* custom property */
            font-weight: bold;                              /* styleguide */
            cursor: pointer;
            transition: background-color var(--animation-duration), color var(--animation-duration);  /* animatie via styleguide */

            &:hover {
                background-color: var(--color-secondary);   /* cascade: hover state */
                color: var(--color-primary);
            }
        }
    }

    .social-buttons {
        display: flex;    
        gap: 15px;                /* flex layout */
        margin-top: 10px;          /* spacing tussen knoppen */

        a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 12px;
            border-radius: 6px;
            text-decoration: none;
            font-weight: bold;                                                                        /* styleguide */
            transition: background-color var(--animation-duration), color var(--animation-duration); /* animatie via custom property */
            color: var(--color-primary);                                                             /* custom property */
            background-color: var(--color-secondary);                                                /* custom property */

            &.facebook, &.instagram, &.youtube { background-color: var(--color-secondary); }   /* component varianten */

            &:hover {
                background-color: var(--color-accent);                                       /* cascade: hover overschrijft */
                color: var(--color-secondary);
                opacity: 0.8;
            }
        }
    }
}