/* ═══════════════════════════════════════════════════════════════
   ATTENTIA.TECH — Coming Soon
   Premium minimal design with network background
   ═══════════════════════════════════════════════════════════════ */

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

/* ── Design Tokens ─────────────────────────────────────────── */
:root {
    /* Brand Colors (from logo gradient) */
    --purple-deep:   #3D2066;
    --purple-mid:    #7B3FA0;
    --magenta:       #C85FAD;
    --blue-mid:      #2E5EA7;
    --blue-cyan:     #1A8BA8;
    --cyan:          #3CC5C8;
    --cyan-light:    #5DE0E6;

    /* Neutrals */
    --white:         #FFFFFF;
    --gray-50:       #FAFAFA;
    --gray-100:      #F5F5F5;
    --gray-200:      #EEEEEE;
    --gray-300:      #E0E0E0;
    --gray-400:      #BDBDBD;
    --gray-500:      #9E9E9E;
    --gray-700:      #616161;
    --gray-900:      #212121;

    /* Typography */
    --font-family:   'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Spacing */
    --space-xs:      0.5rem;
    --space-sm:      1rem;
    --space-md:      1.5rem;
    --space-lg:      2.5rem;
    --space-xl:      4rem;
}

/* ── Base ──────────────────────────────────────────────────── */
html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    font-family: var(--font-family);
    background-color: var(--white);
    color: var(--gray-900);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ── Network Canvas (Background) ───────────────────────────── */
#networkCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* ── Main Content ──────────────────────────────────────────── */
#mainContent {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    padding: var(--space-md);
}

/* ── Tagline ───────────────────────────────────────────────── */
.tagline {
    font-size: clamp(1.1rem, 2.5vw, 1.65rem);
    font-weight: 300;
    letter-spacing: 0.02em;
    color: var(--gray-700);
    text-align: center;
    line-height: 1.6;
    max-width: 640px;
    margin-bottom: var(--space-lg);
    opacity: 0;
}

.tagline .word {
    display: inline-block;
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

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

.tagline.active {
    opacity: 1;
}

/* ── Logo Container ────────────────────────────────────────── */
#logoContainer {
    position: relative;
    width: min(80vw, 560px);
    height: auto;
    aspect-ratio: 1600 / 573;
    margin-bottom: var(--space-lg);
    opacity: 0;
    transition: opacity 0.3s ease;
}

#logoContainer.active {
    opacity: 1;
}

#logoCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

#logoImage {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    opacity: 0;
    transition: opacity 0.8s ease;
}

#logoImage.revealed {
    opacity: 1;
}

/* ── Coming Soon ───────────────────────────────────────────── */
.coming-soon {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.coming-soon.visible {
    opacity: 1;
    transform: translateY(0);
}

.coming-soon-text {
    font-size: clamp(0.85rem, 1.5vw, 1.05rem);
    font-weight: 500;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    background: linear-gradient(135deg, var(--purple-mid), var(--blue-cyan), var(--cyan));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.coming-soon-line {
    width: 48px;
    height: 2px;
    background: linear-gradient(90deg, var(--purple-mid), var(--cyan));
    border-radius: 2px;
    opacity: 0.6;
}

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 600px) {
    .tagline {
        margin-bottom: var(--space-md);
    }

    #logoContainer {
        width: 90vw;
        margin-bottom: var(--space-md);
    }
}

@media (max-height: 500px) {
    .tagline {
        font-size: 0.95rem;
        margin-bottom: var(--space-sm);
    }

    #logoContainer {
        width: 50vw;
        margin-bottom: var(--space-sm);
    }
}