/* ============================================================
   naru.day - 成る - to become
   Ethereal Japanese-minimal: ma, dawn, ink diffusion
   ============================================================ */

:root {
    --indigo-deep:  #1a1a3e; /* Pre-Dawn Indigo */
    --twilight:     #2d2d4e; /* Deep Violet */
    --mauve:        #8a7999; /* Twilight Lavender */
    --blush:        #c8a8a8; /* Faded Rose */
    --ink-rose:     #e8c4c4; /* Rose Mist */
    --pale-cream:   #f5ede8; /* Warm Fog */
    --rose-white:   #faf0f0; /* Morning Blush */
    --white:        #ffffff; /* Pure White */
}

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

html {
    scroll-behavior: smooth;
}

body {
    background: linear-gradient(
        0deg,
        #1a1a3e 0%,
        #2d2d4e 20%,
        #8a7999 50%,
        #e8c4c4 75%,
        #faf0f0 100%
    );
    background-attachment: fixed;
    background-size: 100% 110%;
    color: var(--twilight);
    font-family: 'Shippori Mincho', 'Noto Serif JP', serif;
    font-weight: 400;
    font-size: 1.05rem;
    line-height: 2.0;
    overflow-x: hidden;
    min-height: 100vh;
    animation: breathe 12s ease-in-out infinite;
    position: relative;
}

@keyframes breathe {
    0%, 100% { background-position: 0 0; }
    50%      { background-position: 0 3%; }
}

/* ------------------------------------------------------------
   Dot Grid as Ma - faint dot pattern in negative space
   ------------------------------------------------------------ */
.dot-grid {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 1;
    background-image: radial-gradient(circle, #c8a8a8 1px, transparent 1.4px);
    background-size: 40px 40px;
    background-position: 0 0;
    opacity: 0.08;
    mix-blend-mode: multiply;
    transition: opacity 1.2s ease;
}

/* Subtle luminous overlay that drifts as the page breathes */
.breathing-layer {
    position: fixed;
    inset: -10%;
    pointer-events: none;
    z-index: 0;
    background:
        radial-gradient(60% 40% at 50% 100%, rgba(26, 26, 62, 0.35) 0%, transparent 60%),
        radial-gradient(70% 50% at 50% 0%,   rgba(250, 240, 240, 0.25) 0%, transparent 60%);
    animation: drift 18s ease-in-out infinite alternate;
    mix-blend-mode: screen;
}

@keyframes drift {
    0%   { transform: translate3d(0, 0, 0); opacity: 0.95; }
    100% { transform: translate3d(0, -1.5%, 0); opacity: 1; }
}

/* ------------------------------------------------------------
   Dawn Hero - gradient + watermark + fade-in title
   ------------------------------------------------------------ */
.dawn-hero {
    position: relative;
    width: 100%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 2;
    overflow: hidden;
    padding: 0 2rem;
}

.hero-watermark {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -45%);
    font-family: 'Shippori Mincho', 'Noto Serif JP', serif;
    font-size: 20vw;
    line-height: 1;
    color: var(--rose-white);
    opacity: 0.05;
    mix-blend-mode: multiply;
    pointer-events: none;
    z-index: 1;
    letter-spacing: 0;
    user-select: none;
    animation: watermark-breathe 16s ease-in-out infinite;
}

@keyframes watermark-breathe {
    0%, 100% { transform: translate(-50%, -45%) scale(1.0);    opacity: 0.05; }
    50%      { transform: translate(-50%, -45%) scale(1.015);  opacity: 0.07; }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 520px;
}

.hero-meta {
    font-family: 'Noto Sans JP', 'Inter', sans-serif;
    font-weight: 300;
    font-size: 0.8rem;
    color: var(--ink-rose);
    letter-spacing: 0.35em;
    text-transform: lowercase;
    opacity: 0;
    animation: fadeIn 3s ease 0.4s forwards;
    margin-bottom: 2.25rem;
}

.hero-title {
    font-family: 'Zen Kaku Gothic New', 'Inter', sans-serif;
    font-weight: 300;
    font-size: clamp(1.5rem, 4vw, 3rem);
    color: var(--rose-white);
    letter-spacing: 0.2em;
    opacity: 0;
    animation: fadeIn 3s ease forwards;
    text-shadow:
        0 0 40px rgba(232, 196, 196, 0.3),
        0 0 80px rgba(232, 196, 196, 0.18);
}

.hero-kanji {
    font-family: 'Shippori Mincho', 'Noto Serif JP', serif;
    font-size: 0.95rem;
    color: var(--blush);
    margin-top: 1.75rem;
    opacity: 0;
    animation: fadeIn 3s ease 1.4s forwards;
    letter-spacing: 0.2em;
    font-weight: 400;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.hero-scroll-hint {
    position: absolute;
    bottom: 6vh;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    opacity: 0;
    animation: fadeIn 3s ease 2.4s forwards;
}

.scroll-dot {
    display: block;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--ink-rose);
    box-shadow: 0 0 12px rgba(232, 196, 196, 0.6);
    animation: pulseDot 3.6s ease-in-out infinite;
}

@keyframes pulseDot {
    0%, 100% { transform: translateY(0);   opacity: 0.45; }
    50%      { transform: translateY(8px); opacity: 1; }
}

/* ------------------------------------------------------------
   Single-Stroke Dividers - calligraphic taper
   ------------------------------------------------------------ */
.stroke-divider {
    position: relative;
    z-index: 2;
    margin: 6rem auto;
    height: 2px;
    border-radius: 2px;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(200, 168, 168, 0.0) 5%,
        rgba(200, 168, 168, 0.65) 35%,
        rgba(200, 168, 168, 0.85) 50%,
        rgba(200, 168, 168, 0.4) 70%,
        transparent 100%
    );
    opacity: 0;
    transform: scaleX(0.6);
    transform-origin: 30% center;
    transition: opacity 1.6s ease, transform 1.6s ease;
    filter: blur(0.4px);
}

.stroke-divider.visible {
    opacity: 0.7;
    transform: scaleX(1);
}

.stroke-divider-1 { width: 38%; margin-left: 12%;  height: 3px; }
.stroke-divider-2 { width: 24%; margin-left: 56%;  height: 2px; }
.stroke-divider-3 { width: 30%; margin-left: 18%;  height: 2.5px; }
.stroke-divider-4 { width: 20%; margin-left: 60%;  height: 2px; }
.stroke-divider-5 { width: 28%; margin-left: 30%;  height: 2.5px; }

/* ------------------------------------------------------------
   Content - emergence sections, alternating alignment
   ------------------------------------------------------------ */
.content {
    position: relative;
    z-index: 2;
    max-width: 520px;
    margin: 0 auto;
    padding: 4rem 2rem 0;
}

.emergence-block {
    padding: 8rem 0;
    opacity: 0;
    transform: translateY(30px);
    transition:
        opacity 1.2s cubic-bezier(0.22, 0.61, 0.36, 1),
        transform 1.2s cubic-bezier(0.22, 0.61, 0.36, 1),
        box-shadow 0.8s ease;
    position: relative;
}

.emergence-block.visible {
    opacity: 1;
    transform: translateY(0);
}

.emergence-block.align-left  { text-align: left; }
.emergence-block.align-right { text-align: right; }

.block-meta {
    font-family: 'Noto Sans JP', 'Inter', sans-serif;
    font-weight: 300;
    font-size: 0.78rem;
    color: var(--ink-rose);
    letter-spacing: 0.3em;
    text-transform: lowercase;
    margin-bottom: 1.5rem;
    opacity: 0.85;
}

.emergence-block h2 {
    font-family: 'Zen Kaku Gothic New', 'Inter', sans-serif;
    font-weight: 300;
    font-size: clamp(1.4rem, 3.2vw, 2.2rem);
    color: var(--rose-white);
    margin-bottom: 1.75rem;
    letter-spacing: 0.12em;
    line-height: 1.4;
    text-shadow: 0 0 30px rgba(232, 196, 196, 0.18);
}

.emergence-block p:not(.block-meta) {
    font-family: 'Shippori Mincho', 'Noto Serif JP', serif;
    color: var(--pale-cream);
    font-size: 1.05rem;
    line-height: 2.0;
    max-width: 45ch;
    padding: 2rem 2.25rem;
    background: rgba(250, 240, 240, 0.035);
    backdrop-filter: blur(0.5px);
    -webkit-backdrop-filter: blur(0.5px);
    border-radius: 2px;
    /* Ink diffusion - large, soft, colored shadows */
    box-shadow:
        0 0 40px 10px rgba(232, 196, 196, 0.20),
        30px 30px 60px rgba(232, 196, 196, 0.12),
       -20px 20px 50px rgba(138, 121, 153, 0.10);
}

.emergence-block.align-right p:not(.block-meta) {
    margin-left: auto;
}

/* ------------------------------------------------------------
   Footer - dissolution
   ------------------------------------------------------------ */
.footer {
    position: relative;
    z-index: 2;
    padding: 14rem 2rem 8rem;
    text-align: center;
}

.footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    opacity: 1;
}

.footer-text {
    font-family: 'Zen Kaku Gothic New', 'Inter', sans-serif;
    font-weight: 300;
    font-size: 1rem;
    color: var(--blush);
    letter-spacing: 0.3em;
    opacity: 0.55;
    transition: opacity 1.6s ease;
}

.footer-japanese {
    font-family: 'Shippori Mincho', 'Noto Serif JP', serif;
    font-size: 0.85rem;
    color: var(--mauve);
    letter-spacing: 0.2em;
    opacity: 0.35;
    transition: opacity 1.6s ease;
}

.footer-meta {
    font-family: 'Noto Sans JP', 'Inter', sans-serif;
    font-weight: 300;
    font-size: 0.7rem;
    color: var(--mauve);
    letter-spacing: 0.35em;
    text-transform: lowercase;
    opacity: 0.22;
    transition: opacity 1.6s ease;
    margin-top: 0.5rem;
}

.footer-dot {
    display: block;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--blush);
    margin-top: 4rem;
    opacity: 0.5;
    box-shadow: 0 0 8px rgba(200, 168, 168, 0.4);
    transition: opacity 2.4s ease, transform 2.4s ease;
}

.footer.dissolving .footer-text     { opacity: 0.2; }
.footer.dissolving .footer-japanese { opacity: 0.12; }
.footer.dissolving .footer-meta     { opacity: 0.08; }
.footer.dissolving .footer-dot      { opacity: 0; transform: scale(0.4); }

/* ------------------------------------------------------------
   Responsive
   ------------------------------------------------------------ */
@media (max-width: 768px) {
    .content {
        padding: 2rem 1.5rem 0;
    }

    .emergence-block {
        padding: 5rem 0;
    }

    .emergence-block p:not(.block-meta) {
        padding: 1.5rem 1.5rem;
    }

    .stroke-divider-1 { width: 50%; margin-left: 12%; }
    .stroke-divider-2 { width: 40%; margin-left: 50%; }
    .stroke-divider-3 { width: 45%; margin-left: 18%; }
    .stroke-divider-4 { width: 36%; margin-left: 56%; }
    .stroke-divider-5 { width: 42%; margin-left: 28%; }

    .hero-watermark {
        font-size: 50vw;
    }

    .footer {
        padding: 8rem 1.5rem 5rem;
    }
}

@media (max-width: 480px) {
    body { font-size: 1rem; }

    .hero-meta { letter-spacing: 0.25em; }
    .hero-title { letter-spacing: 0.15em; }

    .emergence-block.align-right { text-align: left; }
    .emergence-block.align-right p:not(.block-meta) { margin-left: 0; }
}