/* ------------------------------------------------------------
   Global reset
------------------------------------------------------------ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ------------------------------------------------------------
   Base typography and layout
------------------------------------------------------------ */
html, body {
    font-family: Arial, Helvetica, sans-serif;
    background-color: #fafafa;
    color: #222;
    line-height: 1.5;
}

/* Max-width container */
.container {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    padding: 1rem;
}

.container h1 {
    text-align: center;
    width: 100%;
}

/* ------------------------------------------------------------
   Header styling
------------------------------------------------------------ */
.site-header {
    background-color: #ffffff;
    border-bottom: 1px solid #ddd;
    padding: 1rem 0;
    margin-bottom: 1.5rem;
}

/* Flex column to stack titles vertically */
.site-header .container {
    display: flex;
    flex-direction: column;
    align-items: center;     /* Center "Notas" */
    text-align: center;
}

/* Top title "Inksmael" (left aligned) */
.site-top-title {
    align-self: flex-start;  /* Left align inside centered container */
    display: block;
    font-size: 1.6rem;
    font-weight: bold;
    text-decoration: none;
    color: #222;
    margin-bottom: 0.4rem;
}

.site-top-title:hover {
    color: #000;
}

/* Main title "Notas" */
.site-header h1 {
    font-size: 2rem;
    font-weight: bold;
    text-align: center;
    width: 100%;
    margin: 0 auto;
}

/* ------------------------------------------------------------
   Notes thumbnails grid
------------------------------------------------------------ */
.notes-container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* 3 thumbnails per row, grouped and centered */
.notes-grid {
    display: grid;
    grid-template-columns: repeat(3, 250px);
    gap: 1.2rem;

    justify-content: center; /* Center the whole thumbnail block */
    justify-items: center;   /* Center thumbnails inside each cell */

    width: fit-content;      /* Grid width shrinks to content */
    max-width: 100%;         /* Avoid overflow */
    margin: 0 auto;
}

/* Thumbnail image styling */
.note-thumb img {
    width: 250px;
    height: auto;
    border-radius: 6px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.15);
    cursor: pointer;
}

.detail-container {
    text-align: center;
}

.detail-image {
    max-width: 500px;
    width: 100%;
    height: auto;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.15);
    border-radius: 6px;
}

.detail-caption {
    text-align: center;
    font-size: 1.1rem;
    color: #444;
    margin-top: 0.8rem;
    margin-bottom: 1.2rem;
}

.detail-nav {
    font-size: 1.2rem;
    margin-top: 1rem;
}

.detail-nav a {
    text-decoration: none;
    color: #333;
    font-weight: bold;
}

.detail-nav a:hover {
    color: #000;
}

.detail-nav .disabled {
    color: #aaa;
}

/* ------------------------------------------------------------
   Responsive adjustments
------------------------------------------------------------ */
@media (max-width: 900px) {
    .notes-grid {
        grid-template-columns: repeat(2, 250px);
    }

    .site-header h1 {
        font-size: 1.8rem;
    }
}

@media (max-width: 600px) {
    .notes-grid {
        grid-template-columns: repeat(1, 250px);
    }

    .site-top-title {
        font-size: 1.4rem;
    }

    .site-header h1 {
        font-size: 1.6rem;
    }
}

/* ------------------------------------------------------------
   Footer styling
------------------------------------------------------------ */
.site-footer {
    margin-top: 2rem;
    padding: 1rem 0;
    text-align: center;
    color: #555;
    font-size: 0.9rem;
    border-top: 1px solid #ddd;
}