/* nord.css - Nord theme for LinkBeam (Automatic light/dark) */
/* Based on the Nord color palette: https://www.nordtheme.com/ */

/* Default: Light mode */
:root {
    /* Nord Snow Storm (light whites/grays) */
    --bg-color: #eceff4;
    --text-color: #2e3440;
    --text-secondary: #3b4252;
    --link-bg: #e5e9f0;
    --link-hover: #d8dee9;
    --border-color: #d8dee9;

    /* Nord Frost (blue accent colors) */
    --accent-color: #5e81ac;
    --accent-light: #81a1c1;

    /* Shadows with lighter tones for Nord Light */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);

    /* Gradients using Nord Snow Storm shades */
    --bg-gradient-start: #eceff4;
    --bg-gradient-end: #e5e9f0;

    /* Glow effects using Nord Frost colors */
    --glow-color: rgba(94, 129, 172, 0.3);
    --glow-hover: rgba(94, 129, 172, 0.2);
    --shimmer: rgba(94, 129, 172, 0.1);
}

/* System dark mode preference */
@media (prefers-color-scheme: dark) {
    :root {
        /* Nord Polar Night (dark blues/grays) */
        --bg-color: #2e3440;
        --text-color: #eceff4;
        --text-secondary: #d8dee9;
        --link-bg: #3b4252;
        --link-hover: #434c5e;
        --border-color: #4c566a;

        /* Nord Frost (blue accent colors) */
        --accent-color: #88c0d0;
        --accent-light: #8fbcbb;

        /* Shadows with darker tones for Nord */
        --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
        --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.5);
        --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.6);

        /* Gradients using Nord Polar Night shades */
        --bg-gradient-start: #2e3440;
        --bg-gradient-end: #3b4252;

        /* Glow effects using Nord Frost colors */
        --glow-color: rgba(136, 192, 208, 0.4);
        --glow-hover: rgba(136, 192, 208, 0.3);
        --shimmer: rgba(136, 192, 208, 0.15);
    }
}

/* Manual overrides (highest specificity) */
html[data-theme="light"] {
    /* Nord Snow Storm (light whites/grays) */
    --bg-color: #eceff4;
    --text-color: #2e3440;
    --text-secondary: #3b4252;
    --link-bg: #e5e9f0;
    --link-hover: #d8dee9;
    --border-color: #d8dee9;

    /* Nord Frost (blue accent colors) */
    --accent-color: #5e81ac;
    --accent-light: #81a1c1;

    /* Shadows with lighter tones for Nord Light */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);

    /* Gradients using Nord Snow Storm shades */
    --bg-gradient-start: #eceff4;
    --bg-gradient-end: #e5e9f0;

    /* Glow effects using Nord Frost colors */
    --glow-color: rgba(94, 129, 172, 0.3);
    --glow-hover: rgba(94, 129, 172, 0.2);
    --shimmer: rgba(94, 129, 172, 0.1);
}

html[data-theme="dark"] {
    /* Nord Polar Night (dark blues/grays) */
    --bg-color: #2e3440;
    --text-color: #eceff4;
    --text-secondary: #d8dee9;
    --link-bg: #3b4252;
    --link-hover: #434c5e;
    --border-color: #4c566a;

    /* Nord Frost (blue accent colors) */
    --accent-color: #88c0d0;
    --accent-light: #8fbcbb;

    /* Shadows with darker tones for Nord */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.6);

    /* Gradients using Nord Polar Night shades */
    --bg-gradient-start: #2e3440;
    --bg-gradient-end: #3b4252;

    /* Glow effects using Nord Frost colors */
    --glow-color: rgba(136, 192, 208, 0.4);
    --glow-hover: rgba(136, 192, 208, 0.3);
    --shimmer: rgba(136, 192, 208, 0.15);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    background-attachment: fixed;
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
}

header {
    text-align: center;
    padding: 3rem 1rem 2rem;
    max-width: 600px;
    margin: 0 auto;
}

header img {
    border-radius: 50%;
    border: 4px solid var(--link-bg);
    box-shadow: var(--shadow-lg), 0 0 0 1px var(--border-color);
    margin-bottom: 1.5rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

header img:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg), 0 0 20px var(--glow-color);
}

header h1 {
    margin: 0.5rem 0;
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

header p {
    margin: 0.75rem 0;
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.5;
}

main {
    max-width: 600px;
    margin: 0 auto;
    padding: 1rem 1rem 3rem;
}

main ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

main li {
    margin-bottom: 1rem;
}

main a,
button,
main span {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1.25rem 1.5rem;
    background-color: var(--link-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    text-decoration: none;
    color: var(--text-color);
    font-weight: 600;
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    width: 100%;
    font: inherit;
}

main span {
    cursor: default;
}

main a::before,
button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--shimmer), transparent);
    transition: left 0.5s ease;
}

main a:hover::before,
button:hover::before {
    left: 100%;
}

main a:hover,
button:hover {
    background-color: var(--link-hover);
    border-color: var(--accent-color);
    transform: translateY(-4px) scale(1.02);
    box-shadow: var(--shadow-md), 0 0 20px var(--glow-hover);
}

main a:active,
button:active {
    transform: translateY(-2px) scale(1.01);
    box-shadow: var(--shadow-sm);
}

main code {
    background-color: rgba(127, 127, 127, 0.1);
    padding: 0.2rem 0.4rem;
    border-radius: 0.25rem;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9em;
    user-select: text;
    -webkit-user-select: text;
    -moz-user-select: text;
}

footer {
    text-align: center;
    padding: 2rem 1rem 3rem;
    max-width: 600px;
    margin: 0 auto;
}

footer p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Image module styles */
.image-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.25rem 1.5rem;
    background-color: var(--link-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    width: 100%;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.image-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md), 0 0 20px var(--glow-hover);
}

.image-item img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    border: 2px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.image-caption {
    margin: 1rem 0 0;
    color: var(--text-color);
    text-align: center;
    font-size: 1rem;
    font-weight: 500;
}