/* ===========================
   SCIVOLI – C64 RETRO STYLE
   =========================== */

:root {
    --bg: #000000;
    --green: #33ff33;
    --green-dim: #1a991a;
    --green-glow: rgba(51, 255, 51, 0.15);
    --green-bright: #88ff88;
    --font: 'Share Tech Mono', 'Courier New', monospace;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--bg);
    color: var(--green);
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.7;
    overflow-x: hidden;
    position: relative;
}

/* ── Boot Screen ── */
#boot-screen {
    position: fixed;
    inset: 0;
    background: #000;
    z-index: 9000;
    display: flex;
    align-items: flex-start;
    padding: 80px 48px;
    transition: opacity 0.8s ease;
}

#boot-screen.fade-out {
    opacity: 0;
    pointer-events: none;
}

#boot-lines {
    font-family: var(--font);
    font-size: clamp(0.85rem, 2vw, 1.05rem);
    color: var(--green);
    line-height: 2;
    text-shadow: 0 0 8px var(--green);
}

#boot-lines p {
    margin: 0;
}

body.booting #site-content {
    visibility: hidden;
    opacity: 0;
}

#site-content {
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.8s ease;
}

#site-content.fade-in {
    opacity: 1;
    visibility: visible;
}

/* ── CRT Scanlines Overlay ── */
.scanlines {
    pointer-events: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: 9999;
    background: repeating-linear-gradient(
        to bottom,
        transparent 0px,
        transparent 2px,
        rgba(0, 0, 0, 0.18) 2px,
        rgba(0, 0, 0, 0.18) 4px
    );
}

.crt-overlay {
    pointer-events: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: 9998;
    background: radial-gradient(ellipse at center,
        transparent 60%,
        rgba(0, 0, 0, 0.6) 100%
    );
}

/* ── Container ── */
.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ── Header ── */
header {
    border-bottom: 1px solid var(--green-dim);
    padding: 16px 0;
    position: sticky;
    top: 0;
    background: var(--bg);
    z-index: 100;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.logo {
    font-size: 1.2rem;
    font-weight: bold;
    letter-spacing: 0.1em;
    text-shadow: 0 0 10px var(--green);
}

nav {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

nav a {
    color: var(--green);
    text-decoration: none;
    letter-spacing: 0.05em;
    font-size: 0.85rem;
    transition: color 0.2s, text-shadow 0.2s;
}

nav a:hover {
    color: var(--green-bright);
    text-shadow: 0 0 8px var(--green);
}

/* ── Hero ── */
.hero {
    padding: 80px 0 60px;
    border-bottom: 1px solid var(--green-dim);
}

.boot-text {
    margin-bottom: 40px;
    font-size: 0.85rem;
    color: var(--green-dim);
}

.boot-text .line {
    opacity: 0;
    animation: fadeIn 0.1s forwards;
}
.line1 { animation-delay: 0.2s; }
.line2 { animation-delay: 0.5s; }
.line3 { animation-delay: 0.9s; }
.line4 { animation-delay: 1.3s; }
.line5 { animation-delay: 1.7s; }
.line6 { animation-delay: 2.1s; }
.line7 { animation-delay: 2.8s; }

@keyframes fadeIn {
    to { opacity: 1; }
}

.hero-title {
    font-size: clamp(1.6rem, 4vw, 2.8rem);
    letter-spacing: 0.06em;
    text-shadow: 0 0 20px var(--green), 0 0 40px rgba(51,255,51,0.3);
    margin-bottom: 24px;
    line-height: 1.3;
    animation: flicker 8s infinite;
}

@keyframes flicker {
    0%, 95%, 100% { opacity: 1; }
    96% { opacity: 0.85; }
    97% { opacity: 1; }
    98% { opacity: 0.9; }
}

.hero-sub {
    color: var(--green-dim);
    font-size: 0.95rem;
    margin-bottom: 36px;
    max-width: 540px;
}

.btn {
    display: inline-block;
    border: 1px solid var(--green);
    color: var(--green);
    text-decoration: none;
    padding: 10px 24px;
    font-family: var(--font);
    font-size: 0.9rem;
    letter-spacing: 0.08em;
    cursor: pointer;
    transition: background 0.2s, color 0.2s, box-shadow 0.2s;
}

.btn:hover {
    background: var(--green);
    color: var(--bg);
    box-shadow: 0 0 20px var(--green);
}

/* ── Sections ── */
.section {
    padding: 70px 0;
    border-bottom: 1px solid var(--green-dim);
}

.section-alt {
    background: rgba(51, 255, 51, 0.02);
}

h2 {
    font-size: 1.4rem;
    letter-spacing: 0.1em;
    margin-bottom: 32px;
    text-shadow: 0 0 10px var(--green);
}

.prompt {
    color: var(--green-dim);
    margin-right: 12px;
}

/* ── Cards ── */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.card {
    border: 1px solid var(--green-dim);
    padding: 24px;
    transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
    background: transparent;
}

.card:hover {
    border-color: var(--green);
    box-shadow: 0 0 16px var(--green-glow), inset 0 0 16px var(--green-glow);
    background: rgba(51, 255, 51, 0.03);
}

.card-header {
    font-size: 0.95rem;
    font-weight: bold;
    margin-bottom: 12px;
    letter-spacing: 0.06em;
    color: var(--green-bright);
}

.card p {
    color: var(--green-dim);
    font-size: 0.88rem;
    line-height: 1.6;
}

/* ── Terminal Box ── */
.terminal-box {
    border: 1px solid var(--green-dim);
    padding: 28px;
    background: rgba(51, 255, 51, 0.02);
    max-width: 600px;
}

.terminal-box p {
    font-size: 0.9rem;
    margin-bottom: 8px;
    color: var(--green);
}

.terminal-box a {
    color: var(--green-bright);
    text-decoration: none;
    border-bottom: 1px solid var(--green-dim);
}

.terminal-box a:hover {
    text-shadow: 0 0 8px var(--green);
    border-color: var(--green);
}

/* ── Cursor Blink ── */
.cursor-blink {
    animation: blink 1s step-end infinite;
    color: var(--green);
}

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

/* ── TO BE CONTINUED Section ── */
.tbc-section {
    padding: 80px 0;
    text-align: center;
}

.tbc-text {
    font-size: clamp(1.2rem, 3vw, 2rem);
    letter-spacing: 0.25em;
    text-shadow: 0 0 20px var(--green), 0 0 40px rgba(51, 255, 51, 0.4);
    display: inline-block;
    border-right: 3px solid var(--green);
    white-space: nowrap;
    animation: cursorBlink 0.8s step-end infinite;
    min-height: 2rem;
}

.tbc-text.done {
    border-right-color: transparent;
    animation: none;
}

.tbc-sub {
    font-size: clamp(0.75rem, 1.8vw, 1rem);
    letter-spacing: 0.15em;
    color: var(--green-dim);
    margin-top: 20px;
    display: block;
    border-right: 2px solid var(--green-dim);
    white-space: normal;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    animation: cursorBlink 0.8s step-end infinite;
    min-height: 1.2rem;
}

.tbc-sub.done {
    border-right-color: transparent;
    animation: none;
}

@keyframes cursorBlink {
    0%, 100% { border-color: var(--green); }
    50% { border-color: transparent; }
}

/* ── Footer ── */
footer {
    padding: 30px 0;
    border-top: 1px solid var(--green-dim);
    color: var(--green-dim);
    font-size: 0.8rem;
}

footer p {
    margin-bottom: 6px;
}

footer .small {
    font-size: 0.72rem;
    opacity: 0.6;
}

/* ── Scrollbar ── */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg);
}
::-webkit-scrollbar-thumb {
    background: var(--green-dim);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--green);
}

/* ── Selection ── */
::selection {
    background: var(--green);
    color: var(--bg);
}

/* ── Responsive ── */
@media (max-width: 600px) {
    nav {
        gap: 12px;
    }
    .hero {
        padding: 50px 0 40px;
    }
    .cards {
        grid-template-columns: 1fr;
    }
}