/* ============================================================
   Kamol Katha - PROFESSIONAL E-PAPER VIEWER STYLES (v2)
   ============================================================ */

/* ---- Viewer Header ---- */
.epaper-viewer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 0.75rem;
}
.epaper-viewer-header-left { }
.epaper-viewer-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1A3C6E;
    margin: 0 0 0.25rem 0;
    line-height: 1.3;
}
.epaper-viewer-date {
    font-size: 0.875rem;
    color: #6B7280;
    margin: 0;
}
.epaper-viewer-header-right {
    display: flex;
    gap: 0.5rem;
}

/* ---- Buttons ---- */
.epaper-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
}
.epaper-btn-outline {
    background: #fff;
    color: #4B5563;
    border: 1.5px solid #D1D5DB;
}
.epaper-btn-outline:hover {
    background: #F9FAFB;
    border-color: #FF9933;
    color: #FF9933;
}

/* ---- Main Layout ---- */
.epaper-main-layout {
    display: flex;
    gap: 0;
    position: relative;
    min-height: 70vh;
    background: #1a1a2e;
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(0,0,0,0.15);
}

/* ---- Sidebar ---- */
.epaper-sidebar {
    width: 180px;
    min-width: 180px;
    background: #16213e;
    display: flex;
    flex-direction: column;
    border-right: 1px solid rgba(255,255,255,0.08);
    transition: width 0.3s ease;
    z-index: 10;
}
.epaper-sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 0.75rem;
    color: #fff;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    background: rgba(0,0,0,0.2);
}
.epaper-sidebar-toggle {
    background: none;
    border: none;
    color: rgba(255,255,255,0.5);
    cursor: pointer;
    font-size: 0.75rem;
    padding: 0.25rem;
    border-radius: 0.25rem;
    transition: color 0.2s;
}
.epaper-sidebar-toggle:hover { color: #fff; }

.epaper-thumbnail-list {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    scroll-behavior: smooth;
}
.epaper-thumbnail-list::-webkit-scrollbar { width: 4px; }
.epaper-thumbnail-list::-webkit-scrollbar-track { background: transparent; }
.epaper-thumbnail-list::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 2px; }

.epaper-thumb-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0.4rem;
    border-radius: 0.375rem;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 2px solid transparent;
    position: relative;
}
.epaper-thumb-item:hover {
    background: rgba(255,153,51,0.1);
    border-color: rgba(255,153,51,0.3);
}
.epaper-thumb-item.active {
    background: rgba(255,153,51,0.2);
    border-color: #FF9933;
}
.epaper-thumb-img {
    width: 100%;
    height: auto;
    max-height: 100px;
    object-fit: contain;
    border-radius: 2px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.3);
}
.epaper-thumb-placeholder {
    width: 100%;
    height: 80px;
    background: rgba(255,255,255,0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.3);
    font-size: 1.5rem;
    font-weight: 700;
    border-radius: 2px;
}
.epaper-thumb-num {
    font-size: 0.65rem;
    color: rgba(255,255,255,0.5);
    margin-top: 0.25rem;
    font-weight: 500;
}
.epaper-thumb-item.active .epaper-thumb-num { color: #FF9933; }

/* Sidebar open button (when closed) */
.epaper-sidebar-open-btn {
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: 20;
    background: #16213e;
    color: #fff;
    border: 1px solid rgba(255,255,255,0.1);
    border-left: none;
    padding: 1rem 0.5rem;
    cursor: pointer;
    border-radius: 0 0.5rem 0.5rem 0;
    display: flex;
    align-items: center;
    transition: background 0.2s;
}
.epaper-sidebar-open-btn:hover { background: #1a1a4e; }

/* ---- Viewer Area ---- */
.epaper-viewer-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    position: relative;
}

/* ---- Toolbar ---- */
.epaper-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 1rem;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255,255,255,0.06);
    gap: 0.5rem;
    flex-wrap: wrap;
}
.epaper-toolbar-left,
.epaper-toolbar-center,
.epaper-toolbar-right {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}
.epaper-toolbar-divider {
    width: 1px;
    height: 1.25rem;
    background: rgba(255,255,255,0.15);
    margin: 0 0.25rem;
}

.epaper-tool-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    background: transparent;
    color: rgba(255,255,255,0.7);
    border: 1px solid transparent;
    border-radius: 0.375rem;
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.15s ease;
}
.epaper-tool-btn:hover {
    background: rgba(255,255,255,0.1);
    color: #fff;
    border-color: rgba(255,255,255,0.15);
}
.epaper-tool-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}
.epaper-tool-btn:disabled:hover {
    background: transparent;
    border-color: transparent;
}

.epaper-page-indicator {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    color: rgba(255,255,255,0.7);
    font-size: 0.8rem;
    font-weight: 500;
}
.epaper-page-input {
    width: 3rem;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.15);
    color: #fff;
    text-align: center;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.2rem 0.3rem;
    border-radius: 0.25rem;
    -moz-appearance: textfield;
}
.epaper-page-input::-webkit-inner-spin-button,
.epaper-page-input::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
.epaper-page-total {
    font-size: 0.75rem;
    opacity: 0.6;
}

.epaper-zoom-level {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.6);
    font-weight: 500;
    min-width: 3rem;
    text-align: center;
}

/* ---- Viewport ---- */
.epaper-viewport {
    flex: 1;
    position: relative;
    background: #0f0f23;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 500px;
}

/* Loading */
.epaper-loading {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 5;
    background: rgba(15,15,35,0.9);
    color: rgba(255,255,255,0.7);
    gap: 1rem;
}
.epaper-loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255,255,255,0.1);
    border-top-color: #FF9933;
    border-radius: 50%;
    animation: epaper-spin 0.8s linear infinite;
}
@keyframes epaper-spin { to { transform: rotate(360deg); } }

/* Navigation arrows on viewer */
.epaper-nav-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    background: rgba(0,0,0,0.5);
    color: #fff;
    border: none;
    width: 3rem;
    height: 5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.25rem;
    transition: all 0.2s ease;
    opacity: 0.4;
}
.epaper-nav-arrow:hover { opacity: 1; background: rgba(0,0,0,0.7); }
.epaper-nav-prev { left: 0; border-radius: 0 0.5rem 0.5rem 0; }
.epaper-nav-next { right: 0; border-radius: 0.5rem 0 0 0.5rem; }

/* ---- Mobile Navigation ---- */
.epaper-mobile-nav {
    display: none;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 1rem;
    background: rgba(0,0,0,0.5);
    border-top: 1px solid rgba(255,255,255,0.06);
}
.epaper-mobile-nav-btn {
    background: rgba(255,255,255,0.1);
    color: #fff;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    transition: background 0.2s;
}
.epaper-mobile-nav-btn:hover { background: rgba(255,255,255,0.2); }
.epaper-mobile-nav-btn:disabled { opacity: 0.3; cursor: not-allowed; }
.epaper-mobile-page-info {
    color: rgba(255,255,255,0.6);
    font-size: 0.8rem;
    font-weight: 500;
}

/* ---- Other Editions Grid ---- */
.epaper-other-editions { }
.epaper-edition-card {
    display: block;
    background: #fff;
    border-radius: 0.5rem;
    padding: 0.75rem;
    text-align: center;
    border: 2px solid #E5E7EB;
    transition: all 0.2s ease;
    text-decoration: none;
}
.epaper-edition-card:hover {
    border-color: #FF9933;
    box-shadow: 0 2px 8px rgba(255,153,51,0.15);
}
.epaper-edition-card.current {
    border-color: #FF9933;
    background: rgba(255,153,51,0.05);
    box-shadow: 0 0 0 3px rgba(255,153,51,0.1);
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
    .epaper-sidebar { width: 140px; min-width: 140px; }
    .epaper-tool-btn { width: 2rem; height: 2rem; font-size: 0.8rem; }
}

@media (max-width: 768px) {
    .epaper-main-layout { border-radius: 0.5rem; }
    .epaper-sidebar { 
        position: absolute; left: 0; top: 0; bottom: 0; 
        width: 160px; min-width: 160px;
        z-index: 30;
    }
    .epaper-toolbar {
        padding: 0.4rem 0.5rem;
        gap: 0.25rem;
    }
    .epaper-toolbar-center { display: none; }
    .epaper-viewport { min-height: 400px; }
    .epaper-nav-arrow { width: 2.5rem; height: 4rem; }
    .epaper-mobile-nav { display: flex; }
    .epaper-btn-text { display: none; }
    .epaper-viewer-title { font-size: 1.25rem; }
}

@media (max-width: 480px) {
    .epaper-sidebar { width: 130px; min-width: 130px; }
    .epaper-toolbar {
        flex-wrap: nowrap;
        overflow-x: auto;
    }
    .epaper-toolbar-right { display: none; }
    .epaper-viewport { min-height: 300px; }
    .epaper-viewer-header { flex-direction: column; align-items: flex-start; }
    .epaper-page-input { width: 2.5rem; }
}

@media (min-width: 769px) {
    .epaper-mobile-nav { display: none; }
}

/* ---- Fullscreen ---- */
.epaper-viewer-area:fullscreen {
    background: #0f0f23;
    border-radius: 0;
}
.epaper-viewer-area:fullscreen .epaper-toolbar {
    background: rgba(0,0,0,0.7);
}

/* ---- Flatpickr Archive Date Picker ---- */
.flatpickr-calendar {
    z-index: 9999 !important;
    box-shadow: 0 8px 32px rgba(0,0,0,0.18) !important;
    border-radius: 0.625rem !important;
    font-family: inherit !important;
}
.flatpickr-day.today {
    border-color: #FF9933 !important;
}
.flatpickr-day.today:hover,
.flatpickr-day.today:focus {
    background: #FF9933 !important;
    border-color: #FF9933 !important;
    color: #fff !important;
}
.flatpickr-day.selected,
.flatpickr-day.selected:hover,
.flatpickr-day.selected:focus {
    background: #1A3C6E !important;
    border-color: #1A3C6E !important;
}
.flatpickr-months .flatpickr-month {
    color: #1A3C6E !important;
}
.flatpickr-current-month .flatpickr-monthDropdown-months {
    color: #1A3C6E !important;
    font-weight: 600 !important;
}
.flatpickr-months .flatpickr-prev-month svg,
.flatpickr-months .flatpickr-next-month svg {
    fill: #4B5563 !important;
}
.flatpickr-months .flatpickr-prev-month:hover svg,
.flatpickr-months .flatpickr-next-month:hover svg {
    fill: #FF9933 !important;
}
.flatpickr-day:not(.flatpickr-disabled):hover {
    background: rgba(255,153,51,0.12) !important;
    border-color: #FF9933 !important;
}
@media (max-width: 480px) {
    .flatpickr-calendar {
        width: 300px !important;
        font-size: 13px !important;
    }
    .flatpickr-day {
        max-width: 36px !important;
        height: 36px !important;
        line-height: 36px !important;
    }
}