@import url('https://fonts.googleapis.com/css2?family=Geist+Mono:wght@100..900&family=Google+Sans+Flex:opsz,wght@6..144,1..1000&family=JetBrains+Mono:wght@100..800&display=swap');

:root {
    /* Colors - Light Mode */
    --color-primary: #242527;
    --color-background: #FAF9F4;
    --color-border: #73767D;
    --color-secondary-text: #585B5F;
    --color-code-bg: #E3E3E5;

    /* Pattern */
    --pattern-image: url('/images/patterns/pattern3.png');

    /* SVG Colors */
    --svg-color: #242527;

    /* Typography */
    --font-primary: 'Geist Mono', monospace;
    --font-size-base: 16px;
    --font-size-heading: 18px;
    --font-size-large: 20px;
    --font-size-small: 14px;
    --font-size-tiny: 10px;

    /* Spacing */
    --spacing-xs: 10px;
    --spacing-sm: 12px;
    --spacing-md: 15px;
    --spacing-base: 12px;
    --spacing-lg: 20px;
    --spacing-xl: 24px;
    --spacing-2xl: 30px;
    --spacing-3xl: 40px;

    /* Letter spacing */
    --letter-spacing-wide: 0.15em;
    --letter-spacing-wider: 0.22em;
    --letter-spacing-ultra: 0.96em;
}

/* Dark Mode - Manual Toggle */
:root.dark-mode {
    --color-primary: #D7D8DA;
    --color-background: #0B0A05;
    --color-border: #82858C;
    --color-secondary-text: #A0A3A7;
    --color-code-bg: #1B1B1D;

    /* Pattern */
    --pattern-image: url('/images/patterns/pattern4.png');

    /* SVG Colors */
    --svg-color: #D7D8DA;
}

/* Dark Mode - System Preference */
@media (prefers-color-scheme: dark) {
    :root:not(.light-mode) {
        --color-primary: #D7D8DA;
        --color-background: #0B0A05;
        --color-border: #82858C;
        --color-secondary-text: #A0A3A7;
        --color-code-bg: #1B1B1D;

        /* Pattern */
        --pattern-image: url('/images/patterns/pattern4.png');

        /* SVG Colors */
        --svg-color: #D7D8DA;
    }
}

* {
    -webkit-tap-highlight-color: transparent;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-primary);
    background: var(--color-background);
    color: var(--color-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background 0.3s ease, color 0.3s ease;
}

/* Inline code styling */
code {
    font-family: 'JetBrains Mono', monospace;
    background-color: var(--color-code-bg);
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 0.9em;
    transition: background-color 0.3s ease;
}

/* SVG Color Control */
img[src$=".svg"]:not(.theme-toggle img) {
    filter: invert(0);
    transition: filter 0.3s ease;
}

:root.dark-mode img[src$=".svg"]:not(.theme-toggle img) {
    filter: invert(1);
}

@media (prefers-color-scheme: dark) {
    :root:not(.light-mode) img[src$=".svg"]:not(.theme-toggle img) {
        filter: invert(1);
    }
}


img[src$=".svg"] {
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    -webkit-user-drag: none;
    -moz-user-drag: none;
    user-drag: none;
    pointer-events: auto;
}

/* Generic header styles */
.header-bar {
    height: 66px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--color-border);
}

.theme-toggle {
    width: 64px;
    height: 66px;
    padding: 13px;
    cursor: pointer;
    transition: opacity 0.2s ease, transform 0.1s ease;
}

/* Desktop hover effect */
@media (min-width: 769px) {
    .theme-toggle:hover {
        opacity: 0.7;
    }
}

/* Active state for click/tap feedback */
.theme-toggle:active {
    transform: scale(0.9);
    opacity: 0.5;
}

.theme-toggle img {
    width: 100%;
    height: 100%;
    filter: invert(0);
    transition: filter 0.3s ease;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

:root.dark-mode .theme-toggle img {
    filter: invert(1);
}

@media (prefers-color-scheme: dark) {
    :root:not(.light-mode) .theme-toggle img {
        filter: invert(1);
    }
}

ul {
	color: var(--color-primary);
	padding: 0 30px;
	}

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

.greeting {
    width: auto;
    height: 66px;
    display: flex;
    padding: 0 var(--spacing-sm);
    justify-content: center;
    align-items: center;
    font-size: 18px;
    font-weight: 500;
    text-decoration: none;
    color: var(--color-primary);
    cursor: pointer;
    transition: opacity 0.2s ease;
    user-select: none;
}

/* Desktop hover effect */
@media (min-width: 769px) {
    .greeting:hover {
        opacity: 0.7;
    }
}

.greeting-text {
    letter-spacing: var(--letter-spacing-ultra);
}

.greeting-emoji {
    letter-spacing: -0.14em;
}

/* Reusable section styles */
.section {
    padding: 0 var(--spacing-base);
    display: flex;
    gap: var(--spacing-md);
}

.section-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    width: 100%;
}

.section-heading {
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: var(--font-size-heading);
    color: var(--color-background);
    background: var(--color-primary);
    letter-spacing: var(--letter-spacing-wider);
}

.section-text {
    font-size: var(--font-size-base);
}

.section-text a {
    color: var(--color-link);
    text-decoration: underline;
}

.read-more {
    font-size: 15px;
    font-weight: bold;
    text-align: right;
    cursor: pointer;
    color: var(--color-primary);
}

.read-more a {
    color: inherit;
    text-decoration: none;
    transition: text-decoration 0.2s ease;
}

.read-more a:hover {
    text-decoration: underline;
}

/* Generic underlined link style */
.link-underlined {
    color: var(--color-secondary-text);
    text-decoration: underline;
    text-decoration-color: var(--color-secondary-text);
    transition: color 0.2s ease, text-decoration-color 0.2s ease;
}

/* Desktop hover effect */
@media (min-width: 769px) {
    .link-underlined:hover {
        color: var(--color-primary);
        text-decoration-color: var(--color-primary);
    }
}

/* Mobile - always primary color */
@media (max-width: 768px) {
    .link-underlined {
        color: var(--color-primary);
        text-decoration-color: var(--color-primary);
    }
}

.body-outer {
    width: 100%;
    padding: 0 var(--spacing-sm);
    display: flex;
}

.body-container {
    width: 100%;
    max-width: 840px;
    border-left: 1px solid var(--color-border);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.read-more-wrapper {
    width: 100%;
    max-width: 840px;
    padding: 8px 0px;
    display: flex;
    justify-content: flex-end;
}

/* Footer styles */
.footer {
    background: var(--color-primary);
    margin-top: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px 10px;
    transition: background 0.3s ease;
}

.footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.footer-branding {
    display: flex;
    align-items: center;
    gap: 20px;
}

.footer-branding span {
    font-size: 14px;
    color: var(--color-background);
}

.footer-connect {
    display: flex;
    align-items: center;
    gap: 30px;
}

.footer-connect a {
    display: flex;
    align-items: center;
    transition: transform 0.1s ease, opacity 0.2s ease;
}

/* Hover effect for desktop */
@media (min-width: 769px) {
    .footer-connect a:hover {
        opacity: 0.7;
    }
}

/* Active state for click/tap feedback */
.footer-connect a:active {
    transform: scale(0.85);
    opacity: 0.5;
}

.footer-connect img {
    filter: invert(1);
}

:root.dark-mode .footer-connect img {
    filter: invert(0);
}

@media (prefers-color-scheme: dark) {
    :root:not(.light-mode) .footer-connect img {
        filter: invert(0);
    }
}

.footer-license {
    font-size: 10px;
    color: var(--color-background);
}

.footer-license a {
    color: var(--color-background);
    text-decoration: underline;
}

.meta-separator {
    font-size: 18px;
    font-weight: 500;
    color: var(--color-secondary-text);
}