/* ========================================
   COMPONENTS
   Buttons, inputs, modals, icons
   ======================================== */

/* === MESSAGE TEXT === */
.message {
    font-size: 1.4rem;
    letter-spacing: 2px;
    opacity: 0;
    transition: opacity 1.5s ease;
    margin-bottom: 2rem;
    font-weight: 300;
    will-change: opacity, transform; /* hint for Chrome animation optimization */
    transform: translateZ(0); /* force GPU layer */
    /* Prevent text selection on all messages */
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none; /* prevent iOS callout on long-press */
    cursor: default;
    /* 2025 Mobile Chrome fixes - prevent flicker deletion */
    position: relative; /* explicit positioning for fixed elements without coords */
    -webkit-perspective: 1000px; /* force GPU layer pinning */
    perspective: 1000px;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    isolation: isolate; /* stacking context isolation */
    /* 2025 Chrome "Containment" fix - forces independent render block */
    contain: layout; /* Chrome treats this as independent, won't wait for other modules */
}

.message.visible { opacity: 1; }
.message.fading { opacity: 0; }

/* === INPUT WRAPPER === */
.input-wrapper {
    position: relative;
    opacity: 0;
    transition: opacity 1.5s ease;
    margin-bottom: 2rem;
}

.input-wrapper.visible { opacity: 1; }
.input-wrapper.fading { opacity: 0; }

.mist-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 200%;
    background: radial-gradient(ellipse, rgba(200, 180, 220, 0.12), transparent 60%);
    border-radius: 50%;
    opacity: 0;
    transition: opacity 0.6s ease;
    pointer-events: none;
    filter: blur(30px);
}

.input-wrapper:focus-within .mist-glow {
    opacity: 1;
    animation: gentle-pulse 4s ease-in-out infinite;
}

/* === ENTRY FIELD === */
.entry-field {
    width: 100%;
    background: rgba(200, 180, 220, 0.01);
    border: 1px solid rgba(200, 180, 220, 0.12);
    border-radius: 12px;
    color: rgba(232, 212, 240, 0.85);
    font-family: 'Georgia', serif;
    font-size: 1.5rem;
    padding: 20px 15px;
    text-align: center;
    outline: none;
    transition: all 0.5s ease;
    letter-spacing: 2px;
    text-shadow: 0 0 8px rgba(200, 180, 220, 0.3);
    position: relative;
    z-index: 2;
    /* Chrome mobile: disable word underline during typing */
    -webkit-text-decoration: none;
    text-decoration: none;
    text-decoration-skip-ink: none;
}

.entry-field:focus {
    background: rgba(200, 180, 220, 0.02);
    border-color: rgba(200, 180, 220, 0.25);
    color: rgba(232, 212, 240, 0.95);
    text-shadow: 0 0 12px rgba(200, 180, 220, 0.5);
    animation: breathe 4s ease-in-out infinite;
}

.entry-field::placeholder { color: rgba(200, 180, 220, 0.25); }

.entry-field.text-fading {
    opacity: 0;
    transition: opacity 1s ease;
}

/* === PEN ICON === */
.pen-icon {
    position: absolute;
    right: 50%;
    top: 50%;
    transform: translate(50%, -50%);
    width: 20px;
    height: 20px;
    opacity: 0.25;
    pointer-events: none;
    z-index: 1;
    transition: opacity 0.3s ease;
}

.entry-field:focus + .pen-icon { opacity: 0; }
.entry-field:not(:placeholder-shown) + .pen-icon { opacity: 0; }

/* === BUTTON GROUP === */
.button-group {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-top: 1.5rem;
    opacity: 1;
    transition: opacity 1.5s ease;
}

/* === CHOICE BUTTON === */
.choice-button {
    padding: 15px 45px;
    background: rgba(200, 180, 220, 0.1);
    border: 1px solid rgba(200, 180, 220, 0.3);
    color: #e8d4f0;
    font-family: 'Georgia', serif;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    letter-spacing: 1px;
    border-radius: 8px;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    position: relative; /* ensure clickable above siblings */
    z-index: 1; /* prevent dead zone from stacking context issues */
    transform: translateZ(0); /* force GPU layer - fixes click dead zones */
}

.choice-button:hover {
    background: rgba(200, 180, 220, 0.15);
    border-color: rgba(200, 180, 220, 0.4);
}

.choice-button:active {
    transform: scale(1.08);
    background: rgba(200, 180, 220, 0.2);
}

/* === BACK BUTTON === */
.back-button {
    position: fixed;
    top: 30px;
    left: 30px;
    padding: 12px 24px;
    background: rgba(200, 180, 220, 0.08);
    border: 1px solid rgba(200, 180, 220, 0.25);
    border-radius: 10px;
    color: #e8d4f0;
    font-family: 'Georgia', serif;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    letter-spacing: 1px;
    z-index: 31;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    transform: translateZ(0); /* force GPU layer - fixes click dead zones */
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

@media (min-width: 769px) {
    .back-button.input-focused {
        opacity: 1 !important;
        pointer-events: auto !important;
    }
}

@media (max-width: 768px) {
    .back-button.input-focused {
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.2s ease;
    }
}

.back-button:hover {
    background: rgba(200, 180, 220, 0.15);
    border-color: rgba(200, 180, 220, 0.4);
}

.back-button:active {
    transform: scale(1.08);
    background: rgba(200, 180, 220, 0.2);
}

/* === HELP ICON === */
.help-icon {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 40px;
    height: 40px;
    background: rgba(200, 180, 220, 0.15);
    border: 1px solid rgba(200, 180, 220, 0.25);
    border-radius: 50%;
    color: #e8d4f0;
    font-family: 'Georgia', serif;
    font-size: 18px;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 25;
    display: flex;
    align-items: center;
    justify-content: center;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    opacity: 0;
    transform: translateZ(0); /* force GPU layer - fixes click dead zones */
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

.help-icon.visible { opacity: 1; }

.help-icon:hover {
    background: rgba(200, 180, 220, 0.25);
    border-color: rgba(200, 180, 220, 0.4);
    box-shadow: 0 0 15px rgba(210, 190, 230, 0.3);
}

.help-icon:active { transform: scale(1.1); }

/* === ENVELOPE HELPER === */
.envelope-helper {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 40px;
    height: 40px;
    background: rgba(200, 180, 220, 0.15);
    border: 1px solid rgba(200, 180, 220, 0.25);
    border-radius: 50%;
    color: #e8d4f0;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 26;
    display: flex;
    align-items: center;
    justify-content: center;
    user-select: none;
    opacity: 0;
    pointer-events: none;
    transform: translateZ(0); /* force GPU layer - fixes click dead zones */
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

.envelope-helper.visible {
    opacity: 1;
    pointer-events: auto;
}

.envelope-helper:hover {
    background: rgba(200, 180, 220, 0.25);
    border-color: rgba(200, 180, 220, 0.4);
    box-shadow: 0 0 15px rgba(210, 190, 230, 0.3);
}

.envelope-helper.blurping {
    animation: blurp 0.4s ease-out 2;
}

/* === HELP MODAL === */
.help-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 30;
    opacity: 0;
    transition: opacity 1s ease;
    pointer-events: none;
}

.help-backdrop.visible {
    opacity: 1;
    pointer-events: auto;
}

.help-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    max-width: 320px;
    background: rgba(26, 10, 26, 0.95);
    border: 1px solid rgba(200, 180, 220, 0.3);
    border-radius: 12px;
    padding: 30px;
    z-index: 35;
    opacity: 0;
    transition: opacity 0.8s ease;
    text-align: center;
    box-shadow: 0 0 40px rgba(200, 180, 220, 0.2);
}

.help-modal.visible { opacity: 1; }

.help-modal-text {
    color: #e8d4f0;
    font-size: 1rem;
    line-height: 1.6;
    letter-spacing: 1px;
}

.help-modal-text em {
    font-style: italic;
    color: rgba(232, 212, 240, 0.9);
    text-shadow: 0 0 8px rgba(200, 180, 220, 0.4);
}

/* === PLACEHOLDER SCREEN === */
.placeholder-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, #1a0a1a, #2d1a3d, #3a2845);
    z-index: 30;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.placeholder-screen.visible { opacity: 1; }

.placeholder-text {
    font-size: 1.3rem;
    letter-spacing: 2px;
    color: #e8d4f0;
    margin-bottom: 3rem;
    opacity: 0.7;
    padding: 0 20px;
    text-align: center;
}