/* ===========================
   RESET & TOKENS
   =========================== */
:root {
    --bg:           #080808;
    --border:       rgba(255,255,255,0.07);

    --text-1:       #ffffff;
    --text-2:       #888888;
    --text-3:       #3a3a3a;

    --neon:         #00ffb2;
    --neon-dim:     rgba(0, 255, 178, 0.18);
    --neon-mid:     rgba(0, 255, 178, 0.45);

    --blue:         #2563eb;
    --blue-hover:   #1d4ed8;

    --font: 'Inter', system-ui, sans-serif;
}

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

html, body {
    height: 100%;
    overflow: hidden;
}

body {
    background: var(--bg);
    color: var(--text-1);
    font-family: var(--font);
    position: relative;
}

/* ===========================
   BUBBLE LAYER
   -- sits above everything by default,
   -- but collapses when input focused
   =========================== */
#bubbles-layer {
    position: fixed;
    inset: 0;
    pointer-events: none;
    /* Above all page content */
    z-index: 100;
    transition: opacity 0.4s ease;
}

body.input-focused #bubbles-layer {
    /* Fade almost away so user can type comfortably */
    opacity: 0.08;
    z-index: 1; /* drop behind the page stacking context */
}

/* ===========================
   PAGE — fixed full-screen grid
   header | main | pot-scene
   =========================== */
.page {
    position: fixed;
    inset: 0;
    display: flex;
    flex-direction: column;
    z-index: 10;
    /* Reserve space at bottom for the pot */
    padding-bottom: clamp(200px, 30vh, 290px);
}


/* ===========================
   HERO
   =========================== */
.hero {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: clamp(10px, 2vh, 30px) clamp(20px, 5vw, 60px) 0;
    position: relative;
    z-index: 10;
}


h1 {
    font-size: clamp(2.4rem, 6.5vw, 5.2rem);
    font-weight: 900;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: clamp(10px, 1.5vh, 18px);
}

.sub {
    font-size: clamp(0.9rem, 1.4vw, 1.05rem);
    color: var(--text-2);
    max-width: 440px;
    line-height: 1.65;
    margin-bottom: clamp(24px, 4vh, 44px);
}

/* ===========================
   NOTIFY FORM
   -- z-index 200 so it beats bubbles on focus
   =========================== */
.notify-form {
    width: 100%;
    max-width: 460px;
    position: relative;
    /* Isolated stacking context */
    isolation: isolate;
    z-index: 200;
}

.input-wrap {
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--border);
    transition: border-color 0.25s ease;
    gap: 12px;
}

.input-wrap:focus-within {
    border-bottom-color: rgba(255,255,255,0.3);
}

.flat-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    padding: 13px 0;
    font-size: 1rem;
    font-family: var(--font);
    color: var(--text-1);
    caret-color: var(--neon);
    min-width: 0;
}

.flat-input::placeholder {
    color: var(--text-3);
}

.btn-notify {
    flex-shrink: 0;
    background: var(--blue);
    color: #fff;
    border: none;
    border-radius: 6px;
    padding: 9px 20px;
    font-size: 0.875rem;
    font-weight: 600;
    font-family: var(--font);
    cursor: pointer;
    transition: background 0.18s ease;
    white-space: nowrap;
}

.btn-notify:hover  { background: var(--blue-hover); }
.btn-notify:active { transform: scale(0.97); }

.form-sub {
    font-size: 0.72rem;
    color: var(--text-3);
    margin-top: 10px;
    text-align: left;
}

/* ===========================
   POT SCENE — fixed to viewport bottom
   =========================== */
.scene {
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    overflow: visible;
    z-index: 10;
    width: clamp(280px, 38vw, 460px);
    pointer-events: none;
}

/* ===========================
   DYNAMIC VAPOR & SURFACE BUBBLES
   =========================== */
.vapor-streak {
    position: fixed;
    border-radius: 50%;
    background: rgba(0, 255, 178, 0.25);
    box-shadow: 0 0 20px 10px rgba(0, 255, 178, 0.15);
    filter: blur(14px);
    pointer-events: none;
    z-index: 12;
    animation: riseVapor linear forwards;
}

@keyframes riseVapor {
    0%   { transform: translateY(0) scale(0.8); opacity: 0; }
    20%  { opacity: 0.8; }
    80%  { opacity: 0.5; }
    100% { transform: translateY(-160px) translateX(var(--drift)) scale(1.6); opacity: 0; }
}

.surface-bubble {
    position: fixed;
    border-radius: 50%;
    background: rgba(0,255,178,0.4);
    border: 1px solid rgba(0,255,178,0.6);
    box-shadow: 0 0 6px rgba(0,255,178,0.3);
    pointer-events: none;
    z-index: 11;
    animation: popSurface linear forwards;
}

@keyframes popSurface {
    0%   { transform: translateY(0) scale(0.5); opacity: 0; }
    20%  { opacity: 1; }
    80%  { transform: translateY(-15px) translateX(var(--drift)) scale(1.1); opacity: 0.8; }
    100% { transform: translateY(-20px) translateX(var(--drift)) scale(2); opacity: 0; }
}

/* ===========================
   POT IMAGE — clipped to hide fire/logs
   =========================== */
.pot-wrap {
    position: relative;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    width: 100%;
}

/* Base glowing vapor resting at the pot opening */
.vapor-glow {
    position: absolute;
    top: -15px; /* Centered around the rim */
    left: 50%;
    transform: translateX(-50%);
    width: 65%;
    height: 40px;
    background: rgba(0, 255, 178, 0.35);
    box-shadow: 0 0 50px 35px rgba(0, 255, 178, 0.25);
    border-radius: 50%;
    filter: blur(15px);
    pointer-events: none;
    z-index: 15;
    animation: vaporPulse 3s infinite alternate ease-in-out;
}

@keyframes vaporPulse {
    0%   { opacity: 0.5; transform: translateX(-50%) scale(0.95); }
    100% { opacity: 0.85; transform: translateX(-50%) scale(1.05); }
}

/* Clip container: show the middle slice of the image (cauldron body and handles).
   The empty top and the fire/logs at the bottom are hidden. */
.pot-clip {
    width: 100%;
    overflow: hidden;
    /* This aspect ratio determines how much vertical slice to show.
       It shows about 30% of the image's total height. */
    aspect-ratio: 1 / 0.36;
    position: relative;
    /* Push the clip container down so its bottom aligns with viewport bottom */
    margin-bottom: -10px;
}

.pot-img {
    width: 100%;
    height: auto;
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    /* Shift the image up by 34% of its own height to hide the empty white space above the cauldron */
    transform: translateY(-34%);
}

/* ===========================
   BUBBLES
   =========================== */
.bubble {
    position: fixed;
    border-radius: 50%;
    background: rgba(0,255,178,0.05);
    border: 1px solid rgba(0,255,178,0.28);
    box-shadow:
        0 0 6px  rgba(0,255,178,0.12),
        inset 0 0 6px rgba(0,255,178,0.07);
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    backdrop-filter: blur(1px);
    animation: floatUp linear forwards;
}

.bubble img {
    width: 54%;
    height: 54%;
    object-fit: contain;
    filter: brightness(0) invert(1) opacity(0.82);
}

@keyframes floatUp {
    0%   { transform: translateY(0)    translateX(0)   scale(0.35); opacity: 0;   }
    10%  { transform: translateY(-25px)               scale(1);    opacity: 1;   }
    82%  {                                                          opacity: 0.65;}
    100% { transform: translateY(-80vh) translateX(var(--drift))   scale(1.08);  opacity: 0;  }
}

/* ===========================
   RESPONSIVE TWEAKS
   =========================== */
@media (max-width: 480px) {

    .notify-form { padding: 0 2px; }

    .btn-notify {
        padding: 8px 14px;
        font-size: 0.82rem;
    }

    h1 { font-size: clamp(2rem, 9vw, 3rem); }
}

/* ===========================
   ACCESSIBILITY & UTILITIES
   =========================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

.logo-img {
    max-height: 120px;
    width: auto;
    margin-bottom: clamp(12px, 1vh, 20px);
}

.form-message {
    transition: color 0.3s ease;
}

/* Pause animations for users who prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}