/* =========================
   CSS VARIABLES
   ========================= */

:root {
    --accent: #00ff41;
    --accent-dim: #00aa2b;
    --accent-glow: rgba(0, 255, 65, 0.15);

    --bg: #0a0e0a;
    --bg-secondary: #0f150f;
    --bg-card: #111811;
    --text: #ccffcc;
    --text-muted: #668866;
    --text-dim: #3a5a3a;
    --border: #1a2e1a;
    --border-accent: #00ff41;
    --prompt-color: #00ff41;
    --cmd-color: #aaffaa;
    --perm-color: #4a7a4a;
    --tag-bg: #0d1f0d;
    --tag-border: #1a3a1a;
}

[data-theme="light"] {
    --accent: #1a6b1a;
    --accent-dim: #2a8a2a;
    --accent-glow: rgba(26, 107, 26, 0.1);

    --bg: #f5fff5;
    --bg-secondary: #edfaed;
    --bg-card: #f0faf0;
    --text: #0a200a;
    --text-muted: #3a6a3a;
    --text-dim: #8aaa8a;
    --border: #c5ddc5;
    --border-accent: #1a6b1a;
    --prompt-color: #1a6b1a;
    --cmd-color: #2a5a2a;
    --perm-color: #7aaa7a;
    --tag-bg: #e0f5e0;
    --tag-border: #b0d0b0;
}

/* =========================
   BASE
   ========================= */

*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: 'JetBrains Mono', 'Courier New', Courier, monospace;
    font-size: 14px;
    line-height: 1.7;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    /* Subtle scanline effect */
    background-image: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0, 0, 0, 0.03) 2px,
        rgba(0, 0, 0, 0.03) 4px
    );
}

[data-theme="light"] body {
    background-image: none;
}

/* =========================
   HEADER
   ========================= */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 0 1.5rem;
}

.header-inner {
    max-width: 900px;
    margin: 0 auto;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    color: var(--accent);
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: 0.02em;
    user-select: none;
}

#theme-toggle {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-family: inherit;
    font-size: 1rem;
    padding: 0.3rem 0.6rem;
    cursor: pointer;
    transition: border-color 0.2s, color 0.2s;
}

#theme-toggle:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* =========================
   BOOT SEQUENCE
   ========================= */

#boot {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 1.5rem 1rem;
    min-height: 260px;
}

#boot-output {
    white-space: pre-wrap;
}

#boot-output .boot-line {
    display: block;
    color: var(--text);
}

#boot-output .boot-line.ok::after {
    content: ' [OK]';
    color: var(--accent);
}

#boot-output .boot-line.err::after {
    content: ' [ERR]';
    color: #ff4141;
}

#boot-output .boot-line.heading {
    color: var(--accent);
    font-weight: 700;
}

#boot-output .boot-line.info {
    color: var(--text-muted);
}

#boot-output .boot-line.hi {
    color: var(--accent);
    font-size: 1.1rem;
    font-weight: 700;
}

.cursor {
    display: inline-block;
    color: var(--accent);
    font-weight: 700;
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* =========================
   MAIN CONTENT
   ========================= */

#content {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 1.5rem 4rem;
    flex: 1;
}

#content.hidden {
    display: none;
}

#content.visible {
    display: block;
    animation: fadeIn 0.6s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

/* =========================
   SECTIONS
   ========================= */

.section {
    margin-top: 3rem;
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.section.visible {
    opacity: 1;
    transform: translateY(0);
}

.section-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
}

.prompt {
    color: var(--prompt-color);
    font-weight: 700;
    user-select: none;
}

.cmd {
    color: var(--cmd-color);
}

.section-body {
    padding-left: 1rem;
    border-left: 2px solid var(--border);
}

/* =========================
   ABOUT
   ========================= */

.about-text {
    color: var(--text-muted);
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.8;
}

/* =========================
   SKILLS TABLE
   ========================= */

.skill-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.skill-table th {
    text-align: left;
    color: var(--text-dim);
    padding: 0.25rem 1rem 0.5rem 0;
    font-weight: 400;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.skill-table td {
    padding: 0.3rem 1rem 0.3rem 0;
    border-bottom: 1px solid var(--border);
}

.perm {
    color: var(--perm-color);
    font-size: 0.8rem;
}

.skill-name {
    color: var(--accent);
    font-weight: 600;
}

.skill-type {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.skill-row:hover .skill-name {
    color: var(--accent-dim);
}

/* =========================
   PROJECTS
   ========================= */

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 1.25rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.project-card:hover {
    border-color: var(--accent);
    box-shadow: 0 0 12px var(--accent-glow);
}

.project-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.project-icon {
    color: var(--text-dim);
    font-size: 0.8rem;
}

.project-name {
    color: var(--accent);
    font-weight: 700;
    font-size: 0.95rem;
}

.project-desc {
    color: var(--text-muted);
    margin: 0 0 0.75rem;
    font-size: 0.88rem;
    line-height: 1.7;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1rem;
}

.tag {
    background: var(--tag-bg);
    border: 1px solid var(--tag-border);
    color: var(--text-muted);
    font-size: 0.75rem;
    padding: 0.1rem 0.5rem;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--accent);
    text-decoration: none;
    font-size: 0.88rem;
    border: 1px solid var(--border);
    padding: 0.35rem 0.75rem;
    transition: border-color 0.2s, background 0.2s;
}

.project-link:hover {
    border-color: var(--accent);
    background: var(--accent-glow);
}

/* =========================
   CONTACT
   ========================= */

.contact-text {
    color: var(--text-muted);
    margin: 0 0 1rem;
    font-size: 0.95rem;
}

.prompt-inline {
    color: var(--prompt-color);
    user-select: none;
}

.external-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent);
    text-decoration: none;
    border: 1px solid var(--accent);
    padding: 0.5rem 1.25rem;
    font-family: inherit;
    font-size: 0.9rem;
    transition: background 0.2s, box-shadow 0.2s;
}

.external-btn:hover {
    background: var(--accent-glow);
    box-shadow: 0 0 16px var(--accent-glow);
}

/* =========================
   FOOTER
   ========================= */

.site-footer {
    border-top: 1px solid var(--border);
    padding: 1rem 1.5rem;
    text-align: center;
    color: var(--text-dim);
    font-size: 0.8rem;
}

/* =========================
   EASTER EGG TERMINAL
   ========================= */

.easter-terminal {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--bg-secondary);
    border-top: 2px solid var(--accent);
    height: 260px;
    display: flex;
    flex-direction: column;
    font-family: inherit;
    font-size: 0.88rem;
    transform: translateY(100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.easter-terminal.open {
    transform: translateY(0);
}

.easter-terminal.hidden {
    display: none;
}

.easter-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.4rem 1rem;
    border-bottom: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.8rem;
    background: var(--bg-card);
    user-select: none;
}

#easter-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-family: inherit;
    cursor: pointer;
    padding: 0 0.25rem;
}

#easter-close:hover {
    color: var(--accent);
}

.easter-output {
    flex: 1;
    overflow-y: auto;
    padding: 0.75rem 1rem;
    color: var(--text-muted);
    white-space: pre-wrap;
}

.easter-output .line {
    display: block;
    margin-bottom: 0.1rem;
}

.easter-output .line.cmd-line {
    color: var(--accent);
}

.easter-output .line.result {
    color: var(--text-muted);
    padding-left: 1rem;
}

.easter-output .line.error {
    color: #ff6666;
    padding-left: 1rem;
}

.easter-input-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-top: 1px solid var(--border);
}

#easter-input {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    color: var(--text);
    font-family: inherit;
    font-size: 0.88rem;
    caret-color: var(--accent);
}

#easter-input::placeholder {
    color: var(--text-dim);
}

/* =========================
   TOAST NOTIFICATIONS
   ========================= */

#toast-container {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 999;
    display: flex;
    flex-direction: column-reverse;
    gap: 0.75rem;
    pointer-events: none;
}

.toast {
    background: var(--bg-secondary);
    border: 1px solid var(--accent);
    padding: 0.75rem 1rem;
    min-width: 240px;
    max-width: 320px;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    box-shadow: 0 0 20px var(--accent-glow);
    animation: toastIn 0.3s ease forwards;
    pointer-events: auto;
}

.toast.out {
    animation: toastOut 0.3s ease forwards;
}

@keyframes toastIn {
    from { opacity: 0; transform: translateX(20px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes toastOut {
    from { opacity: 1; transform: translateX(0); }
    to { opacity: 0; transform: translateX(20px); }
}

.toast-icon {
    font-size: 1.1rem;
    line-height: 1;
    flex-shrink: 0;
}

.toast-body {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.toast-title {
    color: var(--accent);
    font-weight: 700;
    font-size: 0.85rem;
}

.toast-desc {
    color: var(--text-muted);
    font-size: 0.78rem;
}

/* =========================
   POWER SCREEN
   ========================= */

#power-screen {
    position: fixed;
    inset: 0;
    z-index: 3000;
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.8s ease;
}

#power-screen.visible {
    opacity: 1;
}

#power-screen.hidden {
    display: none;
}

.power-btn {
    background: none;
    border: 2px solid var(--accent);
    color: var(--accent);
    font-size: 3rem;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    font-family: inherit;
    position: relative;
    transition: box-shadow 0.3s, background 0.3s;
    animation: powerPulse 2s ease-in-out infinite;
}

.power-btn::before {
    content: '';
    position: absolute;
    inset: -12px;
    border-radius: 50%;
    border: 1px solid var(--accent-dim);
    opacity: 0.5;
}

.power-btn::after {
    content: '';
    position: absolute;
    inset: -24px;
    border-radius: 50%;
    border: 1px solid var(--accent-dim);
    opacity: 0.2;
}

.power-btn:hover {
    background: var(--accent-glow);
    box-shadow: 0 0 40px rgba(0, 255, 65, 0.4);
    animation: none;
}

.power-btn:hover::before {
    opacity: 0.8;
}

.power-btn:hover::after {
    opacity: 0.4;
}

.power-btn span {
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    margin-top: -2px;
}

@keyframes powerPulse {
    0%, 100% { box-shadow: 0 0 10px rgba(0, 255, 65, 0.2); }
    50% { box-shadow: 0 0 32px rgba(0, 255, 65, 0.5); }
}

/* =========================
   MATRIX OVERLAY
   ========================= */

#matrix-canvas {
    position: fixed;
    inset: 0;
    z-index: 2000;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.5s;
}

#matrix-canvas.active {
    opacity: 0.85;
}

/* =========================
   RESPONSIVE
   ========================= */

@media (max-width: 600px) {
    .site-header {
        padding: 0 1rem;
    }

    .logo {
        font-size: 0.78rem;
    }

    #boot,
    #content {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .skill-table th:first-child,
    .skill-table td:first-child {
        display: none;
    }

    .easter-terminal {
        height: 220px;
    }

    #toast-container {
        right: 1rem;
        bottom: 1rem;
    }

    .toast {
        min-width: 200px;
    }
}