/* Base Styles */

/* CSS Reset/Normalize */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    font-family: var(--font-family-base);
    line-height: var(--line-height-base);
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
    /* Account for sticky navbar when jumping to anchor links */
    scroll-padding-top: calc(var(--spacing-3) * 2 + var(--font-size-xl) * var(--line-height-base) + var(--border-width-1) + 4px);
}

body {
    margin: 0;
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-base);
    color: var(--color-text-secondary);
    background-color: var(--color-white);
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
    margin-top: var(--spacing-8);
    margin-bottom: var(--spacing-4);
    font-family: var(--font-family-headings);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-tight);
    letter-spacing: 0.02em;
    text-transform: capitalize;
    color: var(--color-accent);
}

h1 {
    font-size: var(--heading-size-h1);
    border-bottom: 2px solid var(--color-accent);
    padding-bottom: 0.5rem;
    color: var(--color-text-primary);
    text-align: center;
}
h2 {
    font-size: var(--heading-size-h2);
    border-bottom: 1px solid var(--color-muted);
    padding-bottom: 0.25rem;
}
h3 { font-size: var(--heading-size-h3); }
h4 {
    font-size: var(--heading-size-h4);
    font-weight: var(--font-weight-bold);
}
h5, h6 {
    font-size: var(--heading-size-h5);
    font-weight: var(--font-weight-bold);
}

/* Paragraphs */
p {
    margin: 0;
}

/* Paragraph spacing in content contexts */
p + p,
li > p + p {
    margin-top: var(--spacing-4);
}

/* Links */
a {
    color: var(--color-accent);
    text-decoration: none;
    text-underline-offset: 2px;
}

a:hover,
a:focus {
    color: var(--color-accent-dark);
    text-decoration: underline;
}

a:not([href]):not([class]) {
    color: inherit;
    text-decoration: none;
}

a:not([href]):not([class]):hover {
    color: inherit;
    text-decoration: none;
}

/* Lists */
ol,
ul {
    padding-left: var(--spacing-5);
    margin-top: var(--spacing-4);
    margin-bottom: var(--spacing-4);
}

ol ol,
ul ul,
ol ul,
ul ol {
    margin-top: var(--spacing-2);
    margin-bottom: 0;
}

li {
    margin-bottom: var(--spacing-2);
}

li > p {
    margin-top: var(--spacing-2);
}

li > p:first-child {
    margin-top: 0;
}

dt {
    font-weight: var(--font-weight-bold);
}

dd {
    margin-bottom: var(--spacing-2);
    margin-left: 0;
}

/* Blockquotes */
blockquote {
    margin: var(--spacing-6) 0 var(--spacing-4);
    padding: var(--spacing-3) var(--spacing-4);
    border-left: calc(var(--border-width-1) * 4) solid var(--color-accent);
    background-color: var(--color-accent-bg);
    color: var(--color-gray-700);
    font-style: italic;
}

blockquote p:last-child {
    margin-bottom: 0;
}

/* Code */
code {
    font-family: var(--font-family-mono);
    font-size: 0.875em;
    color: var(--color-danger);
    background-color: var(--color-gray-100);
    padding: 0.125rem 0.375rem;
    border-radius: var(--radius-sm);
}

pre {
    display: block;
    margin-top: var(--spacing-6);
    margin-bottom: var(--spacing-6);
    overflow: auto;
    font-family: var(--font-family-mono);
    font-size: var(--font-size-sm);
    background-color: var(--color-gray-100);
    padding: var(--spacing-4);
    border-radius: var(--radius-base);
    border: var(--border-width-1) solid var(--color-gray-300);
}

pre code {
    font-size: inherit;
    color: inherit;
    background-color: transparent;
    padding: 0;
    border-radius: 0;
}

/* Images */
img {
    vertical-align: middle;
    max-width: 100%;
    height: auto;
}

/* Image spacing in content */
p img,
li img {
    margin-top: var(--spacing-4);
    margin-bottom: var(--spacing-4);
}

/* Tables */
table {
    caption-side: bottom;
    border-collapse: collapse;
    width: 100%;
    margin-top: var(--spacing-4);
    margin-bottom: var(--spacing-4);
}

caption {
    padding-top: var(--spacing-2);
    padding-bottom: var(--spacing-2);
    color: var(--color-muted);
    text-align: left;
}

th {
    text-align: inherit;
    text-align: -webkit-match-parent;
}

thead,
tbody,
tfoot,
tr,
td,
th {
    border-color: inherit;
    border-style: solid;
    border-width: 0;
}

/* Table styling for content */
thead th {
    background-color: var(--color-gray-100);
    font-weight: var(--font-weight-bold);
    text-align: left;
    padding: var(--spacing-2) var(--spacing-3);
    border-bottom: 2px solid var(--color-gray-300);
}

tbody td {
    padding: var(--spacing-2) var(--spacing-3);
    border-bottom: var(--border-width-1) solid var(--color-gray-200);
}

tbody tr:hover {
    background-color: var(--color-gray-50);
}

tbody tr:last-child td {
    border-bottom: none;
}

/* Forms */
label {
    display: inline-block;
    margin-bottom: var(--spacing-1);
}

button {
    border-radius: 0;
}

button:focus:not(:focus-visible) {
    outline: 0;
}

input,
button,
select,
optgroup,
textarea {
    margin: 0;
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
}

button,
input {
    overflow: visible;
}

button,
select {
    text-transform: none;
}

[role="button"] {
    cursor: pointer;
}

select {
    word-wrap: normal;
}

[list]::-webkit-calendar-picker-indicator {
    display: none;
}

button,
[type="button"],
[type="reset"],
[type="submit"] {
    -webkit-appearance: button;
}

button:not(:disabled),
[type="button"]:not(:disabled),
[type="reset"]:not(:disabled),
[type="submit"]:not(:disabled) {
    cursor: pointer;
}

::-moz-focus-inner {
    padding: 0;
    border-style: none;
}

textarea {
    resize: vertical;
}

fieldset {
    min-width: 0;
    padding: 0;
    margin: 0;
    border: 0;
}

legend {
    float: left;
    width: 100%;
    padding: 0;
    margin-bottom: var(--spacing-2);
    font-size: calc(1.275rem + 0.3vw);
    line-height: inherit;
}

@media (min-width: 1200px) {
    legend {
        font-size: 1.5rem;
    }
}

legend + * {
    clear: left;
}

::-webkit-datetime-edit-fields-wrapper,
::-webkit-datetime-edit-text,
::-webkit-datetime-edit-minute,
::-webkit-datetime-edit-hour-field,
::-webkit-datetime-edit-day-field,
::-webkit-datetime-edit-month-field,
::-webkit-datetime-edit-year-field {
    padding: 0;
}

::-webkit-inner-spin-button {
    height: auto;
}

[type="search"] {
    outline-offset: -2px;
    -webkit-appearance: textfield;
}

::-webkit-search-decoration {
    -webkit-appearance: none;
}

::-webkit-color-swatch-wrapper {
    padding: 0;
}

::file-selector-button {
    font: inherit;
}

::-webkit-file-upload-button {
    font: inherit;
    -webkit-appearance: button;
}

/* Horizontal Rule */
hr {
    margin: var(--spacing-6) 0;
    color: inherit;
    background-color: currentColor;
    border: 0;
    opacity: 0.25;
}

hr:not([size]) {
    height: var(--border-width-1);
}

/* Hidden Content */
[hidden] {
    display: none !important;
}

/* Focus Styles */
:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

:focus:not(:focus-visible) {
    outline: 0;
}

:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Selection */
::selection {
    background-color: var(--color-accent);
    color: var(--color-white);
}

/* Scrollbar Styling (Webkit) */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background-color: var(--color-gray-100);
}

::-webkit-scrollbar-thumb {
    background-color: var(--color-gray-400);
    border-radius: var(--radius-base);
}

::-webkit-scrollbar-thumb:hover {
    background-color: var(--color-gray-900);
}

/* Print Styles */
@media print {
    *,
    *::before,
    *::after {
        text-shadow: none !important;
        box-shadow: none !important;
    }

    a:not(.btn) {
        text-decoration: underline;
    }

    abbr[title]::after {
        content: " (" attr(title) ")";
    }

    pre {
        white-space: pre-wrap !important;
    }

    pre,
    blockquote {
        border: var(--border-width-1) solid var(--color-gray-900);
        page-break-inside: avoid;
    }

    thead {
        display: table-header-group;
    }

    tr,
    img {
        page-break-inside: avoid;
    }

    p,
    h2,
    h3 {
        orphans: 3;
        widows: 3;
    }

    h2,
    h3 {
        page-break-after: avoid;
    }

    @page {
        size: a3;
    }

    body {
        min-width: var(--container-lg) !important;
    }

    .container {
        min-width: var(--container-lg) !important;
    }
}

/* Mobile REM scaling — scales all rem-based values (fonts AND spacing) down ~12.5% */
@media (max-width: 1023px) {
    html {
        font-size: 14px;
    }
}

/* Responsive Typography */
@media (max-width: 768px) {
    body {
        line-height: 1.7;  /* More generous on mobile */
    }

    ol,
    ul {
        padding-left: var(--spacing-4);  /* Less indent on mobile */
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}