/* --------------------------------------------------------------
   Master‑Page CSS – Dark blue‑silver‑black theme
   -------------------------------------------------------------- */

/* 1️⃣  CSS Reset (minimal) ------------------------------------- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* 2️⃣  Root variables ------------------------------------------ */
:root {
    /* Core palette */
    --bg-dark: #111111; /* darkest background (almost black) */
    --bg-primary: #1e90ff; /* blue accent */
    --bg-accent: #c0c0c0; /* silver (light gray) */
    --text-light: #e0e0e0; /* readable text on dark bg */
    --text-dark: #333333; /* for inverted elements */
    --border-light: #444444;
}

/* 3️⃣  Body / global styles ------------------------------------ */
body {
    font-family: system-ui, sans-serif;
    font-size: 1rem;
    line-height: 1.5;
    color: var(--text-light);
    background-color: var(--bg-dark);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-image: url('img/bgSunset.jpeg');
    background-size: cover;
}

/* 4️⃣  Layout container ---------------------------------------- */
.wrapper {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto; /* center horizontally */
    padding: 1rem; /* gutter for small screens */
    flex: 1 0 auto; /* allow content to grow */
    display: grid;
    grid-template-rows: auto 1fr auto; /* header / main / footer */
}

/* 5️⃣  Header -------------------------------------------------- */
header {
    background: var(--bg-primary);
    color: var(--text-dark);
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-radius: 8px;
    height: 50px;
}

    header h1 {
        font-size: 2.1rem;
        font-weight: 600;
    }

    header img {
        position: relative;
        left: 0px;
        top: 65px;
    }

nav a {
    color: var(--text-dark);
    text-decoration: none;
    margin-left: 1rem;
    font-weight: 500;
    transition: color 0.25s;
}

    nav a:hover,
    nav a:focus {
        color: var(--bg-accent);
    }

/* 6️⃣  Main content ------------------------------------------- */
main {
    padding: 2rem 1rem;
}

.dynamicContent {
    border: 1px solid #1e90ff;
    background-color: #000000ea;
    border-radius: 8px;
    width: 100%;
    min-height: 900px;
    padding: 10px;
}

/* 7️⃣  Footer -------------------------------------------------- */
footer {
    background: var(--bg-primary);
    color: var(--text-dark);
    text-align: center;
    padding: 1rem;
    font-size: 0.875rem;
}

/* 8️⃣  Buttons ------------------------------------------------- */
.btn {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: var(--bg-primary);
    color: var(--text-dark);
    border: 1px solid var(--border-light);
    border-radius: 4px;
    text-decoration: none;
    font-weight: 600;
    transition: background 0.25s, color 0.25s;
}

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

/* 9️⃣  Utilities ------------------------------------------------ */
.text-center {
    text-align: center;
}

.mt-1 {
    margin-top: 0.5rem;
}

.mt-2 {
    margin-top: 1rem;
}

.mb-1 {
    margin-bottom: 0.5rem;
}

.mb-2 {
    margin-bottom: 1rem;
}

/* --------------------------------------------------------------
   Responsive breakpoints – mobile first, then tablet, desktop
   -------------------------------------------------------------- */

/* 10️⃣  Tablet (≥ 768 px) ------------------------------------ */
@media (min-width: 768px) {
    header h1 {
        font-size: 1.75rem;
    }

    nav a {
        margin-left: 1.5rem;
    }

    main {
        padding: 3rem 2rem;
    }

    .btn {
        padding: 0.55rem 1.5rem;
    }
}

/* 11️⃣  Desktop (≥ 1024 px) ----------------------------------- */
@media (min-width: 1024px) {
    .wrapper {
        padding: 0 2rem;
    }

    nav a {
        margin-left: 2rem;
    }

    main {
        padding: 4rem 3rem;
    }
}