@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600;900&display=swap');

:root {
    --bg-page: #030509;
    --panel-bg: rgba(3, 5, 9, 0.85);
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-focus: #22d3ee;
    --cyan: #22d3ee;
    --cyan-hover: #67e8f9;
    --text-main: #f8fafc;
    --text-muted: rgba(255, 255, 255, 0.5);

    --card-bg: #111111;
    --card-border: #333333;
    --cell-bg: #0a0a0a;
    --cell-border: #222222;
}

body {
    font-family: 'Poppins', sans-serif;
    background: var(--bg-page);
    color: var(--text-main);
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ==========================================================================
   CONTROLS PANEL
   ========================================================================== */

.controls-panel {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--panel-bg);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border-subtle);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.controls-inner {
    max-width: 900px;
    margin: 0 auto;
    padding: 1.25rem 1rem;
}

@media (min-width: 768px) {
    .controls-inner {
        padding: 2rem;
    }
}

/* Header Tweaks */
#controls .controls-inner > div:first-child {
    margin-bottom: 2rem !important;
}
#controls h1 {
    font-size: 1.75rem !important;
    letter-spacing: -0.05em !important;
}
#controls .controls-inner > div:first-child p {
    color: var(--text-muted) !important;
    letter-spacing: 0.3em !important;
    font-size: 0.65rem !important;
    margin-top: 0.25rem !important;
}

/* Form Labels */
#controls label {
    font-size: 0.65rem !important;
    font-weight: 900 !important;
    color: var(--text-muted) !important;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 0.5rem !important;
    display: block;
}

/* Inputs & Selects */
#theme-select,
#pack-count {
    width: 100% !important;
    appearance: none !important;
    -webkit-appearance: none !important;
    background-color: rgba(255, 255, 255, 0.03) !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    border-radius: 0.75rem !important;
    padding: 1rem 1.25rem !important;
    color: #fff !important;
    font-size: 1rem !important;
    font-weight: 700 !important;
    font-family: 'Poppins', sans-serif !important;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1) !important;
    line-height: 1.5 !important;
    height: auto !important;
    margin: 0 !important;
}

#theme-select:focus,
#pack-count:focus {
    outline: none !important;
    border-color: var(--border-focus) !important;
    background-color: rgba(34, 211, 238, 0.05) !important;
    box-shadow: 0 0 0 4px rgba(34, 211, 238, 0.15), inset 0 2px 4px rgba(0, 0, 0, 0.2) !important;
}

/* Custom Select Chevron to prevent clipping */
#theme-select {
    padding-right: 3rem !important;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='rgba(255,255,255,0.4)' stroke-width='3'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E") !important;
    background-repeat: no-repeat !important;
    background-position: right 1rem center !important;
    background-size: 1.25rem !important;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
}

#theme-select:focus {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2322d3ee' stroke-width='3'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E") !important;
}

/* ==========================================================================
   PRINT PACK PANEL
   ========================================================================== */

.print-pack-panel {
    margin-top: 0;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    border: 1px solid rgba(34, 211, 238, 0.15);
    border-radius: 1rem;
    background: linear-gradient(145deg, rgba(34, 211, 238, 0.03), rgba(0, 0, 0, 0.4));
    position: relative;
    overflow: hidden;
}

.print-pack-panel::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; height: 1px;
    background: linear-gradient(90deg, transparent, rgba(34, 211, 238, 0.3), transparent);
}

.print-pack-panel h2 {
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.85rem;
    font-weight: 900;
    margin: 0 0 0.5rem 0;
}

.print-pack-panel p {
    color: var(--text-muted);
    font-size: 0.75rem;
    line-height: 1.5;
    margin: 0;
    max-width: 100%;
}

.print-pack-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    width: 100%;
}

.print-pack-options label {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    color: var(--text-muted);
    font-size: 0.65rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin: 0 !important;
}

.print-pack-options select,
.print-pack-options input {
    appearance: none;
    -webkit-appearance: none;
    height: 3rem;
    border-radius: 0.5rem;
    padding: 0 1rem;
    font-size: 0.875rem;
    font-weight: 700;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #fff;
    background-color: rgba(255, 255, 255, 0.05);
    transition: all 0.2s;
    cursor: pointer;
    font-family: 'Poppins', sans-serif;
}

.print-pack-options select {
    padding-right:2.5rem;
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='rgba(255,255,255,0.4)' stroke-width='2'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat:no-repeat;
    background-position:right .75rem center;
    background-size:1rem;
}

.print-pack-options select:focus,
.print-pack-options input:focus {
    outline: none;
    border-color: var(--cyan);
    background-color: rgba(34, 211, 238, 0.05);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2322d3ee' stroke-width='2'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
}

.print-pack-theme { grid-column:span 2; }

@media (min-width:640px) {
    .print-pack-options {
        grid-template-columns:1.35fr .65fr;
        align-items:end;
    }
}

@media (min-width:900px) {
    .print-pack-options {
        grid-template-columns:minmax(220px, 2fr) minmax(130px, .75fr) minmax(160px, 1fr) auto;
    }
    .print-pack-theme { grid-column:auto; }
}

.print-pack-options button {
    height: 3rem;
    border-radius: 0.5rem;
    padding: 0 1.5rem;
    border: none;
    color: #000;
    background: var(--cyan);
    font-size: 0.75rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all 0.2s;
    grid-column: span 2;
    font-family: 'Poppins', sans-serif;
}

@media (min-width: 640px) {
    .print-pack-options button {
        grid-column: auto;
    }
}

.print-pack-options button:hover:not(:disabled),
.print-pack-options button:focus-visible:not(:disabled) {
    background: #fff;
    box-shadow: 0 0 15px rgba(34, 211, 238, 0.4);
    transform: translateY(-2px);
    outline: none;
}

.print-pack-options button:active:not(:disabled) {
    transform: translateY(0);
}

.print-pack-options button:disabled {
    cursor: not-allowed;
    opacity: 0.5;
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.3);
}

/* ==========================================================================
   STATUS & LINKS
   ========================================================================== */

#gen-status {
    font-size: 0.75rem !important;
    font-weight: 900 !important;
    color: var(--cyan) !important;
    background: rgba(34, 211, 238, 0.05) !important;
    padding: 0.75rem 1rem !important;
    border-radius: 0.5rem !important;
    border: 1px solid rgba(34, 211, 238, 0.2) !important;
    margin-top: 1.5rem !important;
    display: none;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

#gen-status:not(:empty) {
    display: block !important;
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-5px); }
    to { opacity: 1; transform: translateY(0); }
}

a[href="index.html"] {
    display: inline-flex !important;
    align-items: center !important;
    gap: 0.5rem !important;
    color: rgba(34, 211, 238, 0.6) !important;
    text-decoration: none !important;
    font-size: 0.75rem !important;
    font-weight: 700 !important;
    text-transform: uppercase !important;
    letter-spacing: 0.15em !important;
    padding: 0.75rem 0 !important;
    transition: color 0.2s !important;
    margin-top: 1.5rem !important;
}

a[href="index.html"]:hover {
    color: var(--cyan) !important;
}

/* ==========================================================================
   BINGO CARDS
   ========================================================================== */

#cards-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 1.5rem;
}

@media (min-width: 768px) {
    #cards-container {
        padding: 3rem;
    }
}

.bingo-card {
    /* Set to dark so transparent PNG headers don't show a white band */
    background: var(--card-bg);
    color: #fff;
    border-radius: 1rem;
    overflow: hidden;
    margin-bottom: 4rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(34, 211, 238, 0.1);
    page-break-after: always;
    page-break-inside: avoid;
    break-after: page;
    break-inside: avoid;
}

.card-header-wrap {
    position: relative;
    overflow: hidden;
    background: var(--card-bg); /* Enforces dark background for transparent headers */
    display: flex;
}

.card-header-img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
}

.bingo-columns-header {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    background: #000;
    border-top: 2px solid var(--card-border);
    border-bottom: 2px solid var(--card-border);
}

.bingo-col-label {
    text-align: center;
    font-size: clamp(1.25rem, 5vw, 1.75rem);
    font-weight: 900;
    padding: 0.75rem 0;
    color: var(--cyan);
    letter-spacing: 0.05em;
    text-shadow: 0 0 15px rgba(34, 211, 238, 0.15);
}

.bingo-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    background: #000;
}

.bingo-cell {
    position: relative;
    aspect-ratio: 1/1;
    border: 1px solid var(--cell-border);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--cell-bg);
}

.bingo-cell:not(.free-cell) {
    color: #e2e8f0;
}

.bingo-cell img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    transition: transform 0.3s ease;
}

.cell-number-overlay {
    display: none;
}

.cell-name {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.95) 0%, rgba(0, 0, 0, 0.8) 50%, transparent 100%);
    color: white;
    font-size: clamp(0.45rem, 1.8vw, 0.6rem);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 1.5rem 0.25rem 0.25rem;
    text-align: center;
    z-index: 2;
    line-height: 1.2;
    text-shadow: 0 1px 2px rgba(0,0,0,0.8);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    white-space: normal; /* Wrapping instead of ellipsis for readability */
}

.free-cell {
    background: var(--cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.free-cell::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 0%, rgba(255,255,255,0.2) 50%, transparent 100%);
    z-index: 1;
}

.free-text {
    font-size: clamp(0.85rem, 3vw, 1.5rem);
    font-weight: 900;
    color: #000;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    z-index: 2;
    text-align: center;
    padding: 0.5rem;
}

.card-info-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    background: #000;
    border-top: 1px solid var(--cell-border);
}

.card-id {
    font-size: clamp(0.75rem, 2.5vw, 1rem);
    font-weight: 900;
    color: rgba(255,255,255,0.4);
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

.qr-container {
    width: clamp(50px, 12vw, 64px);
    height: clamp(50px, 12vw, 64px);
    background: white;
    padding: 0.25rem;
    border-radius: 0.5rem;
    flex-shrink: 0;
    box-shadow: 0 0 15px rgba(255,255,255,0.1);
}

.qr-container canvas,
.qr-container img {
    width: 100% !important;
    height: 100% !important;
    display: block;
    border-radius: 0.125rem;
}

/* ==========================================================================
   PRINT STYLES
   ========================================================================== */

@page {
    size: 6in 8in;
    margin: 0;
}

@media print {
    body {
        background: white;
        color: black;
        margin: 0;
        padding: 0;
    }

    .controls-panel {
        display: none !important;
    }

    #cards-container {
        max-width: 100%;
        padding: 0;
        margin: 0;
    }

    .bingo-card {
        width: 6in;
        height: 8in;
        border-radius: 0;
        box-shadow: none;
        margin: 0;
        page-break-after: always;
        page-break-inside: avoid;
        break-after: page;
        break-inside: avoid;
        display: flex;
        flex-direction: column;

        /* Retain dark background for print so transparent images don't break */
        background: var(--card-bg) !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .bingo-grid {
        flex: 1;
        min-height: 0;
    }

    .bingo-cell {
        aspect-ratio: auto;
    }

    .bingo-card:last-child {
        page-break-after: auto;
        break-after: auto;
    }

    .card-header-wrap {
        background: var(--card-bg) !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .bingo-columns-header {
        background: #000 !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .bingo-grid {
        background: #000 !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .bingo-cell {
        background: var(--cell-bg) !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .bingo-col-label {
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .card-info-row {
        background: #000 !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .card-id {
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .qr-container {
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .free-cell {
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .cell-number-overlay,
    .cell-name {
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
}