/* ==========================================================
   POCKET ELECTRONIC PAGE — pe.css
   Page-specific styles for fonts/pe.html
   ========================================================== */

/* CSS Variables */
:root {
    --pe-green:   #01924f;
    --pe-blue:    #3676b8;
    --pe-black:   #000000;
    --pe-bg:      #ebbdb0;
    --grid-green: rgba(1, 146, 79, 0.18);
    --grid-blue:  rgba(54, 118, 184, 0.18);
    --section-gap: 3rem;
}

/* ==========================================================
   PAGE WRAPPER
   ========================================================== */

#pe-page {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    gap: var(--section-gap);
    width: 100%;
}

/* ==========================================================
   SECTION 1 — HERO
   ========================================================== */

#pe-hero {
    width: 100%;
    padding: 1.5rem;
}

.pe-hero-title {
    width: 100%;
    height: auto;
    display: block;
}

/* ==========================================================
   SECTION 2 — SCROLL ANIMATION + ABOUT TEXT
   ========================================================== */

.pe-about-wrapper {
    position: relative;
}

#pe-about {
    width: 100%;
    padding: 1.5rem;
}

.pe-about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    align-items: center;
}

.pe-anim-col {
    position: static;
}

.pe-anim-img {
    width: 100%;
    height: auto;
    display: block;
    opacity: 0.5;
    border: 3px solid var(--pe-black);
}

/* About text — green-ruled lined paper */
.pe-about-text {
    font-family: monospace;
    font-size: 10px;
    line-height: 30px;
    background: repeating-linear-gradient(
        transparent 0,
        transparent 18px,
        var(--grid-green) 0px,
        var(--grid-green) 30px
    );
    padding: 0 1rem 1rem;
}

.pe-about-text .font-name {
    font-family: monospace;
    font-size: 10px;
    display: block;
    margin-bottom: 0;
}

.pe-about-text br {
    display: none;
}

.pe-about-text p {
    margin-top: 0;
    margin-bottom: 0;
}

.pe-about-text p + p {
    margin-top: 30px;
}

/* ==========================================================
   SECTION 3 — TYPE TESTER (DASHED SLIDERS + NOTEPAD)
   ========================================================== */

#pe-tester {
    width: 100%;
}

/* --- Control Panel --- */

.pe-control-panel {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    padding-top: 1rem;
    padding-bottom: 1rem;
    margin-bottom: 0.5rem;
}

.pe-slider-row {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 0.5rem;
}

.pe-slider-row h2 {
    font-family: monospace;
    font-size: 0.75rem;
    font-weight: normal;
    white-space: nowrap;
    letter-spacing: 0.08em;
}

/* Icon rows — SVGs sit in-flow as flex items flanking the slider */
.pe-slider-icon-row {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 20px;
}

.pe-slider-icon-row .pe-svg {
    height: 20px;
    flex-shrink: 0;
    display: block;
}

/* Offset Row 1 slider tracks to align with Row 2 (icon 20px + gap 8px = 28px each side) */
.pe-slider-row input[type='range'] {
    max-width: 350px;
}

/* Dashed slider track */
.pe-slider-row input[type='range'] {
    -webkit-appearance: none;
    appearance: none;
    background: transparent;
    border: none;
    border-radius: 0;
    flex: 1;
    cursor: pointer;
    height: 20px;
}

.pe-slider-row input[type='range']::-webkit-slider-runnable-track {
    height: 2px;
    background: repeating-linear-gradient(
        90deg,
        var(--pe-black) 0,
        var(--pe-black) 5px,
        transparent 5px,
        transparent 10px
    );
}

.pe-slider-row input[type='range']::-moz-range-track {
    height: 2px;
    background: repeating-linear-gradient(
        90deg,
        var(--pe-black) 0,
        var(--pe-black) 5px,
        transparent 5px,
        transparent 10px
    );
    border: none;
}

.pe-slider-row input[type='range']::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--pe-black);
    margin-top: -6px;
    cursor: pointer;
}

.pe-slider-row input[type='range']::-moz-range-thumb {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--pe-black);
    border: none;
    cursor: pointer;
}

/* --- Notepad --- */

.pe-notepad-wrapper {
    position: relative;
    margin-top: 0.25rem;
    isolation: isolate;
}

/* Shadow page */
.pe-notepad-wrapper::before {
    content: '';
    position: absolute;
    inset: 0;
    border: 3px solid var(--pe-black);
    background: rgba(1, 146, 79, 0.12);
    transform: translate(12px, 12px);
    z-index: 0;
}

.pe-notepad {
    position: relative;
    z-index: 2;
    border: 3px solid var(--pe-black);
    background:
        var(--pe-bg)
        repeating-linear-gradient(
            transparent 0,
            transparent 27px,
            var(--grid-green) 27px,
            var(--grid-green) 30px
        );
    padding: 0 1.5rem 2rem 4rem;
    min-height: 250px;
}

/* Perforation line — ring-binder dashes */
.pe-notepad-perf {
    height: 24px;
    background: repeating-linear-gradient(
        90deg,
        var(--pe-black) 0,
        var(--pe-black) 8px,
        transparent 8px,
        transparent 63px
    );
    background-position: center;
    margin-bottom: 1rem;
    transform: translate(-1px, -15px);
    margin-left: 0.5rem;
    margin-right: 0.5rem;
}

/* Blue margin line */
.pe-notepad::before {
    content: '';
    position: absolute;
    left: 3rem;
    top: 0;
    bottom: 0;
    border-left: 3px solid var(--grid-blue);
    z-index: 3;
}

/* Typing area */
#pe-area {
    font-family: 'pe-vf', monospace;
    font-variation-settings: 'DOTW' 0, 'BARW' 0;
    height: auto;   /* overrides legacy height: 100px in style.css */
}

#pe-text     { display: block; }
#pe-text-mob { display: none; }

#pe-tester .typing-area {
    text-align: left;
    outline: none;
    color: var(--pe-black);
    font-size: 60px;
    line-height: 80px;
}

/* ==========================================================
   SECTION 4 — CHART + VARIABILITY TEXT
   ========================================================== */

#pe-variable {
    padding: 1.5rem 0;
}

.pe-variable-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    align-items: center;
}

.pe-chart-box {
    border: 3px solid var(--pe-black);
    padding: 1.5rem;
    background: var(--pe-bg);
}

.pe-chart-img {
    width: 100%;
    height: auto;
    display: block;
}

.pe-variable-text {
    font-family: monospace;
    font-size: 10px;
    line-height: 30px;
    background: repeating-linear-gradient(
        transparent 0,
        transparent 18px,
        var(--grid-green) 0px,
        var(--grid-green) 30px
    );
    padding: 0 1rem 1rem;
}

.pe-variable-text p {
    margin-top: 0;
    margin-bottom: 0;
}

.pe-variable-text p + p {
    margin-top: 30px;
}

/* ==========================================================
   MOBILE STYLES — max-width: 576px
   ========================================================== */

@media (max-width: 576px) {

    /* --- SECTION 2: Single column --- */
    .pe-about-grid {
        grid-template-columns: 1fr;
    }

    /* --- SECTION 3: Stacked sliders (1 column), hide LEADING --- */
    .pe-control-panel             { grid-template-columns: 1fr; }
    .pe-slider-row:nth-child(2)   { display: none; }   /* hide LEADING */

    #pe-tester .typing-area {
        line-height: 1.2;
    }

    /* Text swap */
    #pe-text     { display: none; }
    #pe-text-mob { display: block; }

    /* --- SECTION 4: Single column --- */
    .pe-variable-layout { grid-template-columns: 1fr; }

}