/* ===================================
   miris-project.net — Styles
   Minimalist Corruption / Dark-Neon
   =================================== */

/* --- CSS Custom Properties --- */
:root {
    --deep-void: #0a0a0f;
    --charcoal-stratum: #111118;
    --neon-magenta: #ff2d78;
    --cyan-voltage: #00e5ff;
    --phosphor-amber: #ffb800;
    --ash-mist: #b8b8c8;
    --slate-ghost: #5a5a6e;
    --corrupt-white: #f0f0ff;
    --dark-layer: #2a2a35;
    --watermark: #1a1a25;
}

/* --- Reset & Base --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--deep-void);
    color: var(--ash-mist);
    font-family: 'IBM Plex Mono', Consolas, monospace;
    font-size: clamp(0.9rem, 1.6vw, 1.05rem);
    line-height: 1.75;
    letter-spacing: 0.015em;
    overflow-x: hidden;
}

/* --- CRT Scanline Overlay --- */
#scanline-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        transparent,
        transparent 2px,
        rgba(0, 0, 0, 0.15) 2px,
        rgba(0, 0, 0, 0.15) 4px
    );
    pointer-events: none;
    z-index: 9999;
}

/* --- Typography --- */
h1, h2 {
    font-family: 'Space Grotesk', 'Helvetica Neue', sans-serif;
    font-weight: 700;
    letter-spacing: -0.02em;
    text-transform: uppercase;
}

h2 {
    font-size: clamp(1.8rem, 4vw, 3.2rem);
    color: var(--neon-magenta);
    position: relative;
    display: inline-block;
    margin-bottom: 0.5rem;
}

.pull-quote {
    font-family: 'Cormorant Garamond', Georgia, serif;
    font-weight: 600;
    font-style: italic;
    font-size: clamp(1.4rem, 3vw, 2.4rem);
    letter-spacing: 0.03em;
    color: var(--neon-magenta);
    padding: 1.5rem 0;
    line-height: 1.4;
}

.index-notation {
    display: block;
    font-family: 'IBM Plex Mono', Consolas, monospace;
    font-size: 0.75rem;
    color: var(--slate-ghost);
    letter-spacing: 0.05em;
    margin-bottom: 2rem;
}

/* --- Glitch Text Effect (Channel Split) --- */
.glitch-text {
    position: relative;
}

.glitch-text::before,
.glitch-text::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    font-family: inherit;
    font-weight: inherit;
    font-size: inherit;
    letter-spacing: inherit;
    text-transform: inherit;
    pointer-events: none;
}

.glitch-text::before {
    color: var(--neon-magenta);
    mix-blend-mode: screen;
    animation: glitch-shift-magenta 4s steps(2) infinite;
    clip-path: inset(0 0 0 0);
}

.glitch-text::after {
    color: var(--cyan-voltage);
    mix-blend-mode: screen;
    animation: glitch-shift-cyan 4s steps(3) infinite;
    clip-path: inset(0 0 0 0);
}

.glitch-text:hover::before {
    animation: glitch-shift-magenta-intense 2s steps(2) infinite;
}

.glitch-text:hover::after {
    animation: glitch-shift-cyan-intense 2s steps(3) infinite;
}

@keyframes glitch-shift-magenta {
    0%, 100% { transform: translateX(-2px); opacity: 0.7; }
    25% { transform: translateX(1px); opacity: 0.5; }
    50% { transform: translateX(-1px); opacity: 0.8; }
    75% { transform: translateX(3px); opacity: 0.6; }
}

@keyframes glitch-shift-cyan {
    0%, 100% { transform: translateX(2px); opacity: 0.7; }
    33% { transform: translateX(-1px); opacity: 0.5; }
    66% { transform: translateX(1px); opacity: 0.8; }
}

@keyframes glitch-shift-magenta-intense {
    0%, 100% { transform: translateX(-5px); opacity: 0.8; }
    25% { transform: translateX(3px); opacity: 0.6; }
    50% { transform: translateX(-3px); opacity: 0.9; }
    75% { transform: translateX(6px); opacity: 0.7; }
}

@keyframes glitch-shift-cyan-intense {
    0%, 100% { transform: translateX(5px); opacity: 0.8; }
    33% { transform: translateX(-3px); opacity: 0.6; }
    66% { transform: translateX(3px); opacity: 0.9; }
}

/* --- Hero Section --- */
.hero-section {
    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--deep-void);
    position: relative;
    overflow: hidden;
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

#hero-title {
    font-size: clamp(2.5rem, 6vw, 5rem);
    color: var(--neon-magenta);
    min-height: 1.2em;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}

#hero-title .char {
    display: inline-block;
    opacity: 0;
    transform: translateX(-4px);
    will-change: transform, opacity;
}

#hero-title .char.visible {
    opacity: 1;
    transform: translateX(0);
    transition: opacity 60ms ease-out, transform 60ms ease-out;
}

@keyframes color-cycle {
    0% { color: var(--neon-magenta); }
    33% { color: var(--cyan-voltage); }
    66% { color: var(--phosphor-amber); }
    100% { color: var(--neon-magenta); }
}

#hero-title .char.cycling {
    animation: color-cycle 150ms steps(3) infinite;
}

#hero-title .char.settled {
    color: var(--neon-magenta);
    animation: none;
}

.border-animate-line {
    width: 0;
    height: 1px;
    background: var(--cyan-voltage);
    margin: 1rem auto 0;
    will-change: width;
}

.border-animate-line.animate {
    width: 100%;
    transition: width 1200ms cubic-bezier(0.22, 1, 0.36, 1);
}

.subtitle {
    font-family: 'IBM Plex Mono', Consolas, monospace;
    font-size: 0.85rem;
    color: var(--slate-ghost);
    margin-top: 1rem;
    opacity: 0;
    will-change: opacity;
    transition: opacity 600ms ease;
}

.subtitle.visible {
    opacity: 1;
}

/* --- Diagonal Sections --- */
.diagonal-section {
    position: relative;
    width: 100%;
    padding: 8rem 0;
    margin-top: -4rem;
    opacity: 0;
    transform: translateY(40px);
    will-change: transform, opacity;
    transition: opacity 500ms ease, transform 500ms ease;
}

.diagonal-section.in-view {
    opacity: 1;
    transform: translateY(0);
}

.diagonal-dark {
    background-color: var(--deep-void);
}

.diagonal-charcoal {
    background-color: var(--charcoal-stratum);
}

#section-2 {
    clip-path: polygon(0 6%, 100% 0, 100% 94%, 0 100%);
    padding: 10rem 0 8rem;
}

#section-3 {
    clip-path: polygon(0 4%, 100% 0, 100% 96%, 0 100%);
    padding: 10rem 0 8rem;
}

#section-4 {
    clip-path: polygon(0 8%, 100% 0, 100% 92%, 0 100%);
    padding: 10rem 0 8rem;
}

#section-5 {
    clip-path: polygon(0 5%, 100% 0, 100% 95%, 0 100%);
    padding: 10rem 0 8rem;
}

/* --- Chapter Watermark --- */
.chapter-watermark {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: 'Cormorant Garamond', Georgia, serif;
    font-weight: 300;
    font-size: clamp(4rem, 8vw, 8rem);
    color: var(--watermark);
    pointer-events: none;
    z-index: 0;
    opacity: 0;
    will-change: opacity;
    transition: opacity 200ms ease;
    user-select: none;
}

.diagonal-section.in-view .chapter-watermark {
    opacity: 1;
}

/* --- Section Content Layout --- */
.section-content {
    position: relative;
    z-index: 1;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 3rem;
    display: flex;
    gap: 3rem;
}

.content-main {
    flex: 1;
    max-width: 60ch;
}

.content-main p {
    margin-bottom: 1.5rem;
    opacity: 0;
    transform: translateY(10px);
    will-change: transform, opacity;
    transition: opacity 400ms ease, transform 400ms ease;
}

.diagonal-section.in-view .content-main p {
    opacity: 1;
    transform: translateY(0);
}

.diagonal-section.in-view .content-main p:nth-child(3) { transition-delay: 100ms; }
.diagonal-section.in-view .content-main p:nth-child(4) { transition-delay: 200ms; }
.diagonal-section.in-view .content-main p:nth-child(5) { transition-delay: 300ms; }
.diagonal-section.in-view .content-main p:nth-child(6) { transition-delay: 400ms; }

/* --- Margin Column --- */
.margin-column {
    width: 25vw;
    max-width: 350px;
    min-width: 200px;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    padding-top: 2rem;
}

.margin-note {
    position: relative;
    padding-left: 1rem;
    font-size: 0.75rem;
    color: var(--ash-mist);
    border-left: 1px solid transparent;
}

.margin-note::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 1px;
    height: 0;
    background: var(--neon-magenta);
    will-change: height;
    transition: height 800ms cubic-bezier(0.22, 1, 0.36, 1);
}

.diagonal-section.in-view .margin-note::before {
    height: 100%;
}

.note-marker {
    font-family: 'Cormorant Garamond', Georgia, serif;
    font-style: italic;
    font-size: 0.85rem;
    color: var(--phosphor-amber);
    vertical-align: super;
    margin-right: 0.25rem;
}

.note-text {
    font-family: 'IBM Plex Mono', Consolas, monospace;
    line-height: 1.6;
}

/* --- Data Corruption Blocks --- */
.data-corruption-block {
    position: relative;
    padding: 0.75rem;
    clip-path: polygon(0 0, 95% 2%, 100% 98%, 3% 100%);
    background: var(--deep-void);
    border-left: 2px solid var(--neon-magenta);
    overflow: hidden;
}

.data-corruption-block span {
    font-family: 'IBM Plex Mono', Consolas, monospace;
    font-size: 0.65rem;
    color: var(--dark-layer);
    word-break: break-all;
    line-height: 1.4;
}

.data-corruption-block::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 2px;
    height: 0;
    background: var(--neon-magenta);
    transition: height 800ms cubic-bezier(0.22, 1, 0.36, 1);
}

.diagonal-section.in-view .data-corruption-block::before {
    height: 100%;
}

/* --- Noise Band --- */
.noise-band {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 6px;
    background: repeating-linear-gradient(
        90deg,
        var(--neon-magenta) 0px,
        transparent 1px,
        transparent 3px,
        var(--cyan-voltage) 3px,
        transparent 4px,
        transparent 6px
    );
    background-size: 8px 6px;
    opacity: 0.4;
    animation: noise-shift 200ms steps(5) infinite;
    pointer-events: none;
}

@keyframes noise-shift {
    0% { background-position: 0 0; }
    20% { background-position: 3px 0; }
    40% { background-position: -2px 0; }
    60% { background-position: 5px 0; }
    80% { background-position: -1px 0; }
    100% { background-position: 0 0; }
}

/* --- Terminal Appendix --- */
.terminal-section {
    width: 100%;
    background-color: var(--deep-void);
    padding: 6rem 3rem;
    position: relative;
}

.terminal-content {
    max-width: 800px;
    margin: 0 auto;
}

.terminal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 1rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--dark-layer);
}

.terminal-label {
    font-family: 'IBM Plex Mono', Consolas, monospace;
    font-size: 0.8rem;
    color: var(--slate-ghost);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.terminal-status {
    font-family: 'IBM Plex Mono', Consolas, monospace;
    font-size: 0.75rem;
    color: var(--cyan-voltage);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.terminal-code {
    font-family: 'IBM Plex Mono', Consolas, monospace;
    font-size: 0.9rem;
    line-height: 1.8;
    color: var(--ash-mist);
    background: none;
    border: none;
    white-space: pre;
    overflow-x: auto;
}

.code-keyword {
    color: var(--neon-magenta);
    font-weight: 500;
}

.code-method {
    color: var(--cyan-voltage);
}

.code-key {
    color: var(--phosphor-amber);
}

.code-string {
    color: var(--ash-mist);
}

.code-number {
    color: var(--cyan-voltage);
}

.code-comment {
    color: var(--slate-ghost);
    font-style: italic;
}

.terminal-cursor-line {
    margin-top: 2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.terminal-prompt {
    color: var(--cyan-voltage);
    font-family: 'IBM Plex Mono', Consolas, monospace;
    font-size: 1rem;
}

.terminal-cursor {
    display: inline-block;
    width: 0.6rem;
    height: 1.2rem;
    background: var(--cyan-voltage);
    animation: cursor-blink 1s steps(1) infinite;
}

@keyframes cursor-blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* --- Colophon --- */
.colophon-section {
    width: 100%;
    background-color: var(--deep-void);
    padding: 4rem 3rem;
    text-align: center;
}

.colophon-border {
    width: 200px;
    height: 1px;
    background: var(--ash-mist);
    margin: 0 auto 3rem;
}

.colophon-content {
    max-width: 500px;
    margin: 0 auto;
}

.colophon-title {
    font-family: 'Cormorant Garamond', Georgia, serif;
    font-weight: 600;
    font-style: italic;
    font-size: 1.4rem;
    color: var(--neon-magenta);
    margin-bottom: 1.5rem;
    letter-spacing: 0.03em;
}

.colophon-text {
    font-family: 'Cormorant Garamond', Georgia, serif;
    font-style: italic;
    font-size: 0.95rem;
    color: var(--slate-ghost);
    line-height: 1.8;
    margin-bottom: 0.75rem;
}

/* --- Section Heading Kinetic Assembly --- */
.section-heading .char {
    display: inline-block;
    opacity: 0;
    transform: translateX(-4px);
    will-change: transform, opacity;
}

.section-heading .char.visible {
    opacity: 1;
    transform: translateX(0);
    transition: opacity 60ms ease-out, transform 60ms ease-out;
}

.section-heading .char.cycling {
    animation: color-cycle 150ms steps(3) infinite;
}

.section-heading .char.settled {
    color: var(--neon-magenta);
    animation: none;
}

/* --- Responsive: collapse margin column on narrow viewports --- */
@media (max-width: 1024px) {
    .section-content {
        flex-direction: column;
    }

    .margin-column {
        width: 100%;
        max-width: 100%;
        min-width: 0;
        padding-top: 1rem;
    }

    .margin-note {
        padding: 0.75rem 1rem;
        cursor: pointer;
    }

    .margin-note .note-text {
        display: none;
    }

    .margin-note.expanded .note-text {
        display: inline;
    }
}

@media (max-width: 768px) {
    .hero-section {
        padding: 0 1.5rem;
    }

    .section-content {
        padding: 0 1.5rem;
    }

    .terminal-section {
        padding: 4rem 1.5rem;
    }

    .colophon-section {
        padding: 3rem 1.5rem;
    }

    #section-2 {
        clip-path: polygon(0 3%, 100% 0, 100% 97%, 0 100%);
    }

    #section-3 {
        clip-path: polygon(0 2%, 100% 0, 100% 98%, 0 100%);
    }

    #section-4 {
        clip-path: polygon(0 4%, 100% 0, 100% 96%, 0 100%);
    }

    #section-5 {
        clip-path: polygon(0 2.5%, 100% 0, 100% 97.5%, 0 100%);
    }

    .diagonal-section {
        padding: 6rem 0;
        margin-top: -2rem;
    }

    .chapter-watermark {
        font-size: clamp(3rem, 15vw, 5rem);
    }

    .data-corruption-block {
        display: none;
    }
}

/* --- Link styles --- */
a {
    color: var(--cyan-voltage);
    text-decoration: none;
    position: relative;
    display: inline-block;
}

a::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--cyan-voltage);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 200ms ease;
}

a:hover::after {
    transform: scaleX(1);
}

/* --- Selection Style --- */
::selection {
    background: var(--neon-magenta);
    color: var(--deep-void);
}