/* ===== Base / Reset ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ===== Theme Variables ===== */
:root {
    --page-bg: #ECEBF3;
    --text-color: #000;
    --heading-color: #000;
    --border-color: #333;
    --legend-color: #222;
    --link-color: #000000;
    --box-link-color: #000000;
    --shadow-color: rgba(0, 0, 0, 0.08);
    --button-bg: transparent;
    --button-hover-bg: #000000;
    --button-hover-text: #ffffff;
}

body.dark-mode {
    --page-bg: #15161a;
    --text-color: #ffffff;
    --heading-color: #ffffff;
    --border-color: #b9bdc7;
    --legend-color: #ffffff;
    --link-color: #8ab4ff;
    --box-link-color: #f2f2f2;
    --shadow-color: rgba(0, 0, 0, 0.35);
    --button-bg: #23252d;
    --button-hover-bg: #ffffff;
    --button-hover-text: #000000;
}

/* ===== Page Structure ===== */
html {
    background-color: var(--page-bg);
}

body {
    min-height: 100vh;
    font-family: Arial, sans-serif;
    padding: 20px;
    color: var(--text-color);
    background-color: var(--page-bg);
    transition: background-color 0.2s ease, color 0.2s ease;
}

header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 800px;
    margin: 30px auto 60px;
}

header h1 {
    margin-right: 20px;
    color: var(--heading-color);
}

nav {
    display: flex;
    align-items: center;
    gap: 15px;
    white-space: nowrap;
}

nav a {
    color: var(--link-color);
    font-weight: 600;
    text-decoration: none;
}

nav a:hover {
    text-decoration: underline;
}

main {
    max-width: 800px;
    margin: 0 auto;
}

section {
    margin-bottom: 24px;
}

/* ===== Portfolio Content Blocks ===== */
.portrait {
    width: 180px;
    height: 240px;
    object-fit: cover;
    border-radius: 1%;
    border: 1px solid var(--border-color);
    flex-shrink: 0;
}

main a[href="index.html"] {
    color: var(--box-link-color);
}

.whoami-text {
    flex: 1;
    line-height: 1.6;
    margin-top: -6px;
}

.box {
    width: 100%;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 26px;
    background-color: transparent;
    box-shadow: 6px 6px 5px var(--shadow-color);
}

.box.whoami {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 0 24px 60px;
}

.box legend {
    font-family: Nothing You Could Do, cursive;
    font-style: italic;
    padding: 0 10px;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--legend-color);
}

.box-text {
    font-family: Cutive Mono, 'Courier New', monospace;
    line-height: 1.6;
    color: var(--text-color);
}

.section-text {
    line-height: 1.6;
}

.project-cards {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 8px;
}

.project-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: transparent;
    box-shadow: 4px 4px 4px var(--shadow-color);
    text-decoration: none;
    color: var(--text-color);
    transition: transform 0.2s ease, background-color 0.2s ease;
}

.project-card:hover,
.project-card:focus-visible {
    transform: translateY(-2px);
    background-color: var(--shadow-color);
}

.project-image {
    width: 72px;
    height: 72px;
    object-fit: cover;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    flex-shrink: 0;
}

.project-content {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.project-card h3 {
    font-family: Cutive Mono, 'Courier New', monospace;
    font-size: 1rem;
    color: var(--heading-color);
}

.project-card p {
    font-family: Cutive Mono, 'Courier New', monospace;
    line-height: 1.5;
    font-size: 0.95rem;
}

.project-button {
    display: inline-block;
    width: fit-content;
    margin-top: 2px;
    padding: 6px 10px;
    border: 1px solid var(--border-color);
    border-radius: 999px;
    font-family: Cutive Mono, 'Courier New', monospace;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-color);
    background-color: var(--button-bg);
}

.box ul {
    margin-left: 20px;
    list-style: square;
}

.box li {
    list-style: square;
    padding-right: 20px;
    margin-bottom: 10px;
}

.box li:last-child {
    margin-bottom: 0;
}

.box a {
    color: var(--box-link-color);
    font-weight: 700;
    text-decoration: underline;
}

.box a:hover {
    color: var(--link-color);
}

.box.socials ul {
    display: flex;
    gap: 12px;
    margin-left: 0;
    list-style: none;
}

/* ===== Header Controls ===== */
.theme-toggle {
    border: 1px solid var(--border-color);
    border-radius: 999px;
    padding: 8px 12px;
    color: var(--text-color);
    background-color: var(--button-bg);
    cursor: pointer;
    font-weight: 700;
    line-height: 1;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
    background-color: var(--button-hover-bg);
    color: var(--button-hover-text);
}

/* ===== Tools / Password Generator ===== */
.password-generator .tool-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 16px;
    align-items: center;
    margin-bottom: 16px;
    font-family: Cutive Mono, 'Courier New', monospace;
}

.password-generator label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.password-generator input[type="number"] {
    width: 72px;
    padding: 6px 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: transparent;
    color: var(--text-color);
    font-family: inherit;
}

.password-generator button {
    border: 1px solid var(--border-color);
    border-radius: 999px;
    padding: 8px 12px;
    color: var(--text-color);
    background-color: var(--button-bg);
    cursor: pointer;
    font-weight: 700;
}

.password-generator button:hover {
    background-color: var(--button-hover-bg);
    color: var(--button-hover-text);
}

#password-output {
    display: block;
    word-break: break-all;
    padding: 12px;
    border: 1px dashed var(--border-color);
    border-radius: 4px;
    min-height: 2.5em;
}

.tools-grid {
    display: grid;
    gap: 16px;
}

.tool-card {
    padding: 0;
    overflow: hidden;
    position: relative;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 6px 6px 5px var(--shadow-color);
    background-color: transparent;
}

.tool-card-toggle {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 20px 26px;
    border: 0;
    background: transparent;
    color: var(--text-color);
    cursor: pointer;
    text-align: left;
    font-family: Nothing You Could Do, cursive;
    font-style: italic;
    font-size: 1.1rem;
    font-weight: 700;
}

.tool-card-toggle:hover,
.tool-card-toggle:focus-visible {
    background-color: var(--shadow-color);
}

.tool-card-title {
    font-weight: 700;
}

.tool-card-hint {
    font-family: Cutive Mono, 'Courier New', monospace;
    font-size: 0.9rem;
    opacity: 0.7;
}

.tool-card .tool-panel {
    margin: 0 20px 20px;
    border-top: 1px solid var(--border-color);
    padding: 16px 0 0;
}

.tool-panel {
    padding: 0 26px 26px;
    border-top: 1px solid var(--border-color);
}

.notebook-panel {
    padding-top: 16px;
}

.notebook-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.note-breadcrumbs {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    font-family: Cutive Mono, 'Courier New', monospace;
    font-size: 0.9rem;
}

.note-breadcrumbs button {
    border: 0;
    background: transparent;
    color: var(--link-color);
    cursor: pointer;
    padding: 0;
    text-decoration: underline;
}

.note-breadcrumbs button.active {
    font-weight: 700;
    color: var(--text-color);
}

.notebook-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.secondary-btn {
    border: 1px solid var(--border-color);
    border-radius: 999px;
    padding: 8px 12px;
    color: var(--text-color);
    background-color: var(--button-bg);
    cursor: pointer;
    font-weight: 700;
}

.secondary-btn:hover {
    background-color: var(--button-hover-bg);
    color: var(--button-hover-text);
}

.notebook-editor {
    width: 100%;
    min-height: 220px;
    padding: 14px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: transparent;
    color: var(--text-color);
    font-family: Cutive Mono, 'Courier New', monospace;
    line-height: 1.6;
    resize: vertical;
}

.notebook-editor:focus {
    outline: 2px solid var(--link-color);
    outline-offset: 2px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.tool-card.is-open .tool-card-hint {
    display: none;
}

/* ===== Responsive Layout ===== */
@media (max-width: 600px) {
    header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    header h1 {
        margin-right: 0;
    }

    .box.whoami {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .whoami-text {
        margin-top: 0;
    }
}