:root {
    --bg-color: #121212;
    --text-color: #e0e0e0;
    --box-bg: #1e1e1e;
    --box-border: #333333;
    --timer-bg: #2d2d2d;
    --footer-color: #888888;
    --textarea-bg: #252525;
    --accent-color: #ffc04d;
    --banner-opacity: 0.50;

    --glass-bg: rgba(18, 18, 18, 0.65);
    --glass-border: rgba(255, 255, 255, 0.15);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

body { 
    font-family: Arial, sans-serif; 
    margin: 0; 
    padding: 0; 
    padding-bottom: 50px;
    line-height: 1.5;
    background-color: var(--bg-color); 
    color: var(--text-color); 
    transition: background-color 0.3s, color 0.3s; 
    font-size: 0.95rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* ==========================================
   HERO BANNER & VISTAS
   ========================================== */

.hero-banner {
    position: relative;
    width: 100%;
    min-height: 100vh;
    padding: 20px 20px 40px 20px;
    box-sizing: border-box;
    text-align: center;
    background-color: var(--bg-color);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    overflow: hidden;
}

.hero-banner::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('owner.jpg');
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
    opacity: var(--banner-opacity);
    pointer-events: none;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    width: 100%;
    margin: auto 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.view-section {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    animation-duration: 0.4s;
    animation-fill-mode: forwards;
    animation-timing-function: ease-out;
}

.hidden-view {
    display: none !important;
}

.fade-in-up {
    animation-name: fadeInUp;
}

.fade-in-down {
    animation-name: fadeInDown;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes subtleBounce {
    0%, 100% {
        transform: translateY(0);
    }
    10% {
        transform: translateY(-8px);
    }
    18% {
        transform: translateY(0);
    }
    24% {
        transform: translateY(-3px);
    }
    30% {
        transform: translateY(0);
    }
}

.scroll-btn {
    position: relative;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background-color: var(--accent-color);
    color: #121212;
    border: none;
    cursor: pointer;
    font-size: 1.4rem;
    font-weight: bold;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    transition: transform 0.2s, opacity 0.2s;
    text-decoration: none;
    animation: subtleBounce 3s ease infinite;
}

.scroll-btn:hover {
    animation: none;
    transform: scale(1.1);
    opacity: 0.9;
}

.scroll-down-btn {
    margin-top: 15px;
}

/* ==========================================
   ESTRUCTURA Y LAYOUT
   ========================================== */

#main-wrapper {
    max-width: 600px;
    width: 100%;
    margin: auto;
    padding: 20px 15px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.upload-card {
    width: 100%;
    box-sizing: border-box;
}

.layout-columns {
    display: flex;
    gap: 30px;
    justify-content: center;
    align-items: flex-start;
    flex-wrap: wrap;
    width: 100%;
}

.column-left, .column-right {
    flex: 1;
    min-width: 300px;
    box-sizing: border-box;
}

/* ==========================================
   COMPONENTES DE LA INTERFAZ
   ========================================== */

.info-box { 
    width: 100%;
    text-align: left;
    box-sizing: border-box;
    border: 1px solid var(--box-border); 
    background-color: var(--box-bg); 
    padding: 12px 15px; 
    border-radius: 6px; 
    margin-bottom: 15px; 
}

.info-box p {
    margin: 8px 0;
}

.brand-container { 
    text-align: center; 
    margin-bottom: 10px; 
}

.brand-container h2 {
    font-size: 1.6rem;
    margin-bottom: 5px;
}

.mascot-img { 
    max-width: 330px;
    height: auto; 
    display: block; 
    margin: 0 auto 20px auto;
    transition: filter 0.3s ease;
    filter: invert(1) brightness(0.9);
}

.control-group { 
    margin-bottom: 12px; 
}

.error { 
    color: #ff4d4d; 
    font-weight: bold; 
    word-break: break-word; 
    font-size: 0.85rem;
}

.drop-zone { 
    border: 2px dashed var(--glass-border); 
    padding: 20px 15px; 
    text-align: center; 
    border-radius: 8px; 
    background-color: var(--glass-bg); 
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    cursor: pointer; 
    transition: border-color 0.2s, background-color 0.2s; 
    word-break: break-word;
    font-size: 0.9rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.drop-zone--over { 
    border-color: var(--accent-color); 
    background-color: var(--glass-bg); 
}

.drop-zone input { 
    display: none; 
}

select#expiry {
    background-color: var(--glass-bg);
    color: var(--text-color);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 8px;
    border-radius: 6px;
    margin-top: 5px;
    width: 100%;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    outline: none;
}

select#expiry option {
    background-color: var(--bg-color);
    color: var(--text-color);
}

textarea { 
    width: 100%; 
    height: 50px; 
    margin-top: 8px; 
    background-color: var(--textarea-bg); 
    color: var(--text-color); 
    border: 1px solid var(--box-border); 
    padding: 6px; 
    border-radius: 4px; 
    box-sizing: border-box; 
    font-family: Arial, monospace; 
    resize: none; 
    font-size: 0.85rem;
}

#preview { 
    margin-top: 15px; 
    padding: 12px; 
    border: 1px dashed var(--box-border); 
    border-radius: 6px; 
    display: none; 
}

.timer-container { 
    margin: 10px 0; 
    background: var(--timer-bg); 
    padding: 8px; 
    border-radius: 4px; 
    font-size: 0.9rem;
}

#fileContent img, #fileContent embed, #fileContent pre {
    max-width: 100%;
    box-sizing: border-box;
}

progress { 
    width: 100%; 
    height: 10px; 
    border-radius: 6px; 
    overflow: hidden; 
    border: none; 
}

progress::-webkit-progress-bar { 
    background-color: var(--bg-color); 
}

progress::-webkit-progress-value { 
    background-color: var(--accent-color); 
}

.top-controls { 
    display: flex; 
    gap: 8px; 
    justify-content: flex-end; 
    width: 100%;
    max-width: 900px;
    position: relative;
    z-index: 10;
}

.lang-toggle { 
    padding: 6px 12px;
    border-radius: 6px;
    border: 1px solid var(--glass-border); 
    background-color: var(--glass-bg); 
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: var(--text-color); 
    cursor: pointer; 
    font-size: 0.8rem;
    font-weight: bold; 
    font-family: Arial, Helvetica, sans-serif;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: background-color 0.2s, transform 0.2s;
}

.lang-toggle:hover {
    transform: translateY(-1px);
}

.credit-toggle {
    position: relative;
    padding: 6px 10px;
    border-radius: 6px;
    border: 1px solid var(--glass-border);
    background-color: var(--glass-bg);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    cursor: pointer;
    font-size: 0.9rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: background-color 0.2s, transform 0.2s;
}

.credit-toggle:hover {
    transform: translateY(-1px);
}

.credit-toggle::after {
    content: attr(data-tooltip);
    position: absolute;
    top: 125%;
    left: 50%;
    transform: translateX(-50%) translateY(-4px);
    background-color: var(--glass-bg);
    color: var(--text-color);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 6px 10px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: normal;
    white-space: nowrap;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
    z-index: 20;
}

.credit-toggle:hover::after,
.credit-toggle:focus::after {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.btn { 
    padding: 8px 14px; 
    border-radius: 4px; 
    border: 1px solid var(--box-border); 
    background-color: var(--box-bg); 
    color: var(--text-color); 
    cursor: pointer; 
    font-weight: bold; 
    margin-top: 5px; 
    transition: background 0.2s; 
    display: inline-block;
    font-size: 0.85rem;
}

.btn:hover { 
    background: var(--timer-bg); 
}

.btn-primary { 
    background: var(--accent-color); 
    color: #121212; 
    border: none; 
    font-family: Arial, sans-serif; 
}

.btn-primary:hover { 
    opacity: 0.9; 
}

.file-meta { 
    font-size: 0.85rem; 
    color: var(--footer-color); 
    margin-bottom: 8px; 
    word-break: break-all; 
}

.highlight-yellow {
    background-color: transparent; 
    padding: 0;
    border-radius: 0;
    border-left: none; 
    color: inherit; 
    font-size: 0.9rem;
}

footer { 
    position: fixed;
    bottom: 0;
    left: 0;
    font-size: 0.8rem; 
    color: var(--footer-color); 
    text-align: center; 
    border-top: 1px solid var(--glass-border); 
    padding: 10px 0;
    width: 100%;
    background-color: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 100;
}

.modal-disclaimer {
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 25px;
    border-radius: 8px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    position: relative;
    color: var(--text-color);
}

.close-disclaimer {
    position: absolute;
    top: 10px;
    right: 16px;
    color: var(--footer-color);
    font-size: 26px;
    font-weight: bold;
    cursor: pointer;
}

.close-disclaimer:hover {
    color: var(--text-color);
}

/* Ajuste vista banner limpia */
#viewBanner .info-box {
    background: transparent !important;
    border: none !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    box-shadow: none !important;
    padding: 0 !important;
}

.cards-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 15px;
    margin-top: 15px;
    text-align: left;
}

.card-item {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    border-radius: 12px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.card-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
    border-color: rgba(255, 255, 255, 0.25);
}

.card-icon {
    display: flex;
    align-items: center;
    margin-bottom: 4px;
}

.card-icon svg {
    stroke: var(--text-color, currentColor);
    display: block;
}

.card-item strong {
    display: block;
    color: var(--text-color);
    margin-bottom: 4px;
}

/* Bloque de texto principal centrado */
.hero-intro {
    text-align: center;
    max-width: 650px;
    margin: 0 auto 20px auto;
}

.hero-hook {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-top: 10px;
    margin-bottom: 12px;
    line-height: 1.3;
}

.hero-desc {
    font-size: 0.95rem;
    color: var(--text-color);
    opacity: 0.9;
    line-height: 1.6;
    margin: 0;
}


/* ==========================================
   TOOLTIPS EN DROP ZONE ICONS
   ========================================== */

.drop-zone-icons {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    width: 100%;
    margin-bottom: 12px;
}

.icon-tooltip {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.icon-tooltip svg {
    transition: transform 0.2s ease, fill 0.2s ease, stroke 0.2s ease;
}

.icon-tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 130%;
    left: 50%;
    transform: translateX(-50%) translateY(4px);
    background-color: var(--glass-bg);
    color: var(--text-color);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 5px 9px;
    border-radius: 6px;
    font-size: 0.72rem;
    font-weight: bold;
    white-space: nowrap;
    box-shadow: var(--glass-shadow);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
    z-index: 20;
}

.icon-tooltip::before {
    content: "";
    position: absolute;
    bottom: 108%;
    left: 50%;
    transform: translateX(-50%) translateY(4px);
    border-width: 5px;
    border-style: solid;
    border-color: var(--glass-border) transparent transparent transparent;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
    z-index: 20;
}

.icon-tooltip:hover::after,
.icon-tooltip:hover::before {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.icon-tooltip:hover svg {
    transform: translateY(-2px);
    fill: var(--accent-color);
    stroke: var(--accent-color);
}

/* ==========================================
   MEDIA QUERIES (RESPONSIVE)
   ========================================== */

@media (max-width: 768px) {
    #main-wrapper {
        margin: 10px auto;
    }
    
    .layout-columns {
        gap: 15px;
    }
    
    .column-left, .column-right {
        flex: 1 1 100%;
    }
}

@media (max-width: 640px) {
    .top-controls {
        justify-content: center;
    }

    .btn, button.btn {
        width: 100%;
        box-sizing: border-box;
        padding: 10px;
        text-align: center;
    }
    
    select#expiry {
        width: 100%;
        padding: 8px;
    }
}