/* ============================================================
   intro.css — Omega C64 Cinematic Intro (Centered Panel Edition)
   ============================================================ */

:root {
    --intro-bg: #000000;
    --intro-cyan: #7fe9ff;
    --intro-cyan-deep: #00d2ff;
    --intro-panel: rgba(5, 15, 40, 0.95);
    --intro-border: rgba(120, 170, 255, 0.8);
    --intro-skip-red: #ff2440;
}

/* BODY / ROOT ------------------------------------------------- */

body.intro-body {
    margin: 0;
    background: #000;
    color: var(--intro-cyan);
    overflow: hidden;
    font-family: "C64 Pro Mono", monospace;
}

.intro-root {
    position: relative;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    background: radial-gradient(circle at top, #050b1a 0%, #000 70%);
}

/* RASTER VIDEO ------------------------------------------------ */

.intro-video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.35;
    mix-blend-mode: screen;
    pointer-events: none;
}

/* OVERLAY ----------------------------------------------------- */

.intro-overlay {
    position: relative;
    width: 100%;
    height: 100%;
    z-index: 2;
    background: radial-gradient(
        circle at center,
        rgba(0, 0, 0, 0.25) 0%,
        rgba(0, 0, 0, 0.9) 70%,
        #000 100%
    );
}

/* LOGO -------------------------------------------------------- */

.intro-logo {
    position: absolute;
    top: 24px;
    left: 24px;
    z-index: 10;
}

.intro-logo img {
    height: 64px;
}

/* SKIP BUTTON ------------------------------------------------- */

.intro-skip {
    position: absolute;
    top: 24px;
    right: 32px;
    padding: 0.7rem 1.9rem;
    border-radius: 999px;
    border: 2px solid var(--intro-skip-red);
    background: radial-gradient(circle at 30% 20%, #ff647f, #4a000a 55%, #000);
    color: #fff;
    font-size: 0.9rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    cursor: pointer;
    z-index: 20;
    box-shadow:
        0 0 20px rgba(255, 60, 90, 0.75),
        0 0 6px rgba(255, 255, 255, 0.6);
    text-shadow:
        0 0 5px #ffffff,
        0 0 14px #ff324f;
}

.intro-skip:hover {
    box-shadow:
        0 0 26px rgba(255, 120, 140, 0.9),
        0 0 10px rgba(255, 255, 255, 0.75);
}

/* FADE TO BLACK ----------------------------------------------- */

#introFade {
    position: absolute;
    inset: 0;
    background: #000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.45s ease;
    z-index: 50;
}

#introFade.intro-fade--active {
    opacity: 1;
}

/* IDLE (“CLICK TO POWER ON”) --------------------------------- */

.intro-idle {
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    transform: translateY(-50%);
    text-align: center;
    cursor: pointer;
    z-index: 5;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.intro-idle-title {
    display: inline-block;
    font-size: clamp(2.6rem, 4vw, 3.6rem);
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: var(--intro-cyan);
    text-shadow:
        0 0 18px var(--intro-cyan-deep),
        0 0 45px rgba(0, 190, 255, 1),
        0 0 85px rgba(0, 190, 255, 0.85),
        0 0 120px rgba(0, 190, 255, 0.75);
    animation: introIdlePulse 1.8s ease-in-out infinite alternate;
}

.intro-idle--hidden {
    opacity: 0;
    transform: translateY(-50%) scale(0.96);
    pointer-events: none;
}

@keyframes introIdlePulse {
    0% {
        opacity: 0.55;
        text-shadow:
            0 0 12px var(--intro-cyan-deep),
            0 0 30px rgba(0, 190, 255, 0.8);
        transform: scale(0.97);
    }
    50% {
        opacity: 1;
        text-shadow:
            0 0 22px var(--intro-cyan-deep),
            0 0 60px rgba(0, 220, 255, 1),
            0 0 110px rgba(0, 220, 255, 0.9);
        transform: scale(1.02);
    }
    100% {
        opacity: 0.7;
        text-shadow:
            0 0 16px var(--intro-cyan-deep),
            0 0 40px rgba(0, 200, 255, 0.8);
        transform: scale(1);
    }
}

/* C64 PANEL --------------------------------------------------- */

.intro-c64-screen {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: min(820px, 92vw);
    max-width: calc(100vw - 2.4rem);
    padding: 2.2rem 3rem;
    box-sizing: border-box;
    border-radius: 18px;
    background: radial-gradient(circle at top,
        rgba(40, 70, 150, 0.85),
        rgba(7, 15, 38, 0.98) 45%,
        rgba(3, 8, 20, 0.98));
    border: 2px solid var(--intro-border);
    box-shadow:
        0 0 24px rgba(90, 140, 255, 0.9),
        0 0 40px rgba(30, 80, 220, 0.9);
    color: var(--intro-cyan);
    font-family: "C64 Pro Mono", monospace;
    font-size: 1.2rem;
    letter-spacing: 0.06em;
    text-shadow: 0 0 6px rgba(120, 170, 255, 0.9);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.45s ease, transform 0.45s ease, visibility 0.45s ease;
    z-index: 8;
}

@media (max-width: 720px) {
    .intro-c64-screen {
        width: min(760px, 95vw);
        padding: 1.8rem 2.2rem;
        font-size: 1.05rem;
    }
}

@media (max-width: 540px) {
    .intro-c64-screen {
        width: min(700px, 96vw);
        padding: 1.4rem 1.5rem;
        font-size: 0.94rem;
        letter-spacing: 0.045em;
    }

    .intro-c64-line {
        white-space: pre-wrap;
        word-break: break-word;
    }
}

.intro-c64-screen--visible {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%);
}

.intro-c64-screen--hidden {
    opacity: 0;
    visibility: hidden;
    transform: translate(-50%, -50%) scale(0.97);
}

/* BASIC TEXT -------------------------------------------------- */

.intro-c64-line {
    display: block;
    white-space: pre;
    min-height: 1em;
    line-height: 1.1;
    margin: 0.1rem 0;
    /* Force all BASIC lines to be left-aligned by default */
    text-align: left;
}

/* Only the header lines are centred */
.intro-c64-line--header {
    text-align: center;
}

.intro-c64-line--ram {
    margin-top: 0.35rem;
    margin-bottom: 1.2rem;
}

.intro-c64-line--ready {
    margin-top: 0.3rem;
    margin-bottom: 0.45rem;
}

.intro-ready-cursor {
    display: inline-block;
    width: 0.65em;
    height: 1.05em;
    margin-left: 0.25em;
    background-color: var(--intro-cyan);
    box-shadow: 0 0 8px rgba(120, 170, 255, 0.9);
    animation: introCursorBlink 0.8s steps(2, start) infinite;
    transform: translateY(0.12em);
}

@keyframes introCursorBlink {
    0%, 49% { opacity: 1; }
    50%, 100% { opacity: 0; }
}

.intro-c64-line--typed {
    text-align: left;
    color: var(--intro-cyan);
    text-shadow:
        0 0 8px rgba(120, 170, 255, 0.9),
        0 0 16px rgba(80, 140, 255, 0.9),
        0 0 32px rgba(40, 100, 255, 0.85);
}

#typedLines {
    margin-top: 0.35rem;
}

/* SPEECH (“ANOTHER VISITOR…”) ------------------------------- */

.intro-speech-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -55%) scale(0.9);
    width: 100%;
    max-width: min(1200px, 96vw);
    padding-inline: clamp(1rem, 5vw, 3rem);
    box-sizing: border-box;
    text-align: center;
    font-family: "C64 Pro Mono", monospace;
    font-size: clamp(3rem, 5vw, 4.2rem);
    letter-spacing: 0.25em;
    color: var(--intro-cyan);
    opacity: 0;
    pointer-events: none;
    text-shadow:
        0 0 12px var(--intro-cyan-deep),
        0 0 35px rgba(0, 200, 255, 0.9),
        0 0 70px rgba(0, 200, 255, 0.85);
    z-index: 30;
    transition: opacity 0.5s ease, transform 0.5s ease;
    overflow-wrap: anywhere;
}

.intro-speech-text--visible {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
    animation: introSpeechPulse 1.6s ease-in-out infinite alternate;
}

@keyframes introSpeechPulse {
    0% {
        text-shadow:
            0 0 14px var(--intro-cyan-deep),
            0 0 40px rgba(0, 200, 255, 0.8),
            0 0 80px rgba(0, 200, 255, 0.7);
        letter-spacing: 0.22em;
    }
    50% {
        text-shadow:
            0 0 24px var(--intro-cyan-deep),
            0 0 75px rgba(0, 230, 255, 1),
            0 0 130px rgba(0, 230, 255, 0.95);
        letter-spacing: 0.27em;
    }
    100% {
        text-shadow:
            0 0 14px var(--intro-cyan-deep),
            0 0 40px rgba(0, 200, 255, 0.8),
            0 0 80px rgba(0, 200, 255, 0.7);
        letter-spacing: 0.23em;
    }
}

/* RESPONSIVE -------------------------------------------------- */

@media (max-width: 768px) {

    .intro-logo img {
        height: 44px;
    }

    .intro-skip {
        padding: 0.55rem 1.3rem;
        font-size: 0.8rem;
    }

    .intro-c64-screen {
        font-size: 1rem;
        padding: 1.4rem 1.6rem;
    }

    .intro-speech-text {
        font-size: clamp(2.3rem, 6vw, 3rem);
        letter-spacing: 0.18em;
        width: min(1000px, 94vw);
    }
}

@media (max-width: 520px) {

    .intro-speech-text {
        font-size: clamp(1.8rem, 8vw, 2.4rem);
        letter-spacing: 0.14em;
        width: min(900px, 92vw);
        padding-inline: clamp(1rem, 6vw, 2.5rem);
    }
}

@media (max-width: 420px) {

    .intro-speech-text {
        font-size: clamp(1.6rem, 9vw, 2rem);
        letter-spacing: 0.1em;
        width: min(820px, 90vw);
        padding-inline: clamp(0.9rem, 6vw, 2rem);
        line-height: 1.2;
    }
}

@media (max-width: 520px) {

    .intro-speech-text {
        font-size: clamp(1.8rem, 8vw, 2.4rem);
        letter-spacing: 0.14em;
        max-width: min(1100px, 94vw);
        padding-inline: clamp(1rem, 6vw, 2.5rem);
    }
}

/* ============================================================
   MOBILE SAFETY — C64 BASIC TEXT SIZE ONLY
   • No alignment changes
   • No layout changes
   • Font-size reduction only
============================================================ */

@media (max-width: 480px) {
    .intro-c64-screen {
        font-size: 0.75rem;
    }
}