/* =====================================================
   PDF MERGER — style.css
   ===================================================== */





/* ── TOAST ── */
.toast-container {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 99999;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    padding: 12px 18px;
    border-radius: 10px;
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    display: flex;
    align-items: center;
    gap: 9px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
    animation: toastIn 0.22s ease;
    max-width: 300px;
    backdrop-filter: blur(8px);
}

@keyframes toastIn {
    from {
        opacity: 0;
        transform: translateX(24px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.toast.success {
    background: #dcfce7;
    color: #166534;
    border: 1px solid #bbf7d0;
}

.toast.error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.toast.info {
    background: #dbeafe;
    color: #1e40af;
    border: 1px solid #bfdbfe;
}

.toast.warning {
    background: #fef3c7;
    color: #92400e;
    border: 1px solid #fde68a;
}

body.dark-mode .toast.success {
    background: #052e16cc;
    color: #4ade80;
    border-color: #166534;
}

body.dark-mode .toast.error {
    background: #450a0acc;
    color: #f87171;
    border-color: #991b1b;
}

body.dark-mode .toast.info {
    background: #0f172acc;
    color: #60a5fa;
    border-color: #1e3a8a;
}

body.dark-mode .toast.warning {
    background: #431407cc;
    color: #fbbf24;
    border-color: #92400e;
}

/* ── LOADER OVERLAY ── */
.loader-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(11, 17, 32, 0.88);
    backdrop-filter: blur(10px);
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.loader-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.loader-ring {
    width: 60px;
    height: 60px;
    animation: rotateRing 1.2s linear infinite;
}

@keyframes rotateRing {
    to {
        transform: rotate(360deg);
    }
}

.loader-ring-bg {
    fill: none;
    stroke: rgba(255, 255, 255, 0.08);
    stroke-width: 4;
}

.loader-ring-track {
    fill: none;
    stroke: url(#loaderGrad);
    stroke-width: 4;
    stroke-linecap: round;
    stroke-dasharray: 80;
    stroke-dashoffset: 20;
}

.loader-text {
    font-size: var(--text-md);
    font-weight: var(--weight-bold);
    color: #f1f5f9;
}

.loader-sub {
    font-size: var(--text-sm);
    color: #94a3b8;
    min-height: 18px;
}

/* ── PASSWORD MODAL ── */
.password-modal {
    position: fixed; inset: 0; z-index: 10000;
    background: rgba(11,17,32,0.85);
    backdrop-filter: blur(10px);
    display: none; align-items: center; justify-content: center;
    padding: 20px;
}
.password-box {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 20px; padding: 28px;
    width: 100%; max-width: 440px;
    box-shadow: var(--shadow-lg);
    display: flex; flex-direction: column; align-items: center; text-align: center;
    gap: 14px; animation: modalPop 0.25s ease;
}
@keyframes modalPop { from { opacity:0; transform: scale(0.92); } to { opacity:1; transform: scale(1); } }
.password-icon {
    width: 54px; height: 54px; border-radius: 50%;
    background: rgba(230, 57, 70, 0.12); color: var(--danger);
    display: flex; align-items: center; justify-content: center;
    font-size: var(--text-xl); border: 1px solid rgba(230, 57, 70, 0.25);
}
.password-title { font-size: var(--text-lg); font-weight: var(--weight-extrabold); color: var(--text); }
.password-sub { font-size: var(--text-sm); color: var(--text-muted); line-height: 1.4; word-break: break-all; }
.password-input-group {
    width: 100%; display: flex; align-items: center;
    position: relative; margin-top: 4px;
}
.password-input-group input {
    width: 100%; padding: 12px 42px 12px 14px;
    border-radius: 10px; border: 1.5px solid var(--border);
    background: var(--bg); color: var(--text);
    font-size: var(--text-sm); font-weight: var(--weight-semibold); outline: none;
    transition: 0.15s; font-family: inherit;
}
.password-input-group input:focus {
    border-color: var(--danger);
    box-shadow: 0 0 0 3px var(--danger-glow);
}
.btn-toggle-pw {
    position: absolute; right: 12px; background: none; border: none;
    color: var(--text-muted); cursor: pointer; font-size: var(--text-base); padding: 4px;
}
.btn-toggle-pw:hover { color: var(--text); }
.password-hint-box {
    width: 100%; text-align: left;
    background: var(--bg); border: 1px solid var(--border);
    border-radius: 10px; padding: 12px 14px;
    font-size: var(--text-xs); color: var(--text-muted); line-height: 1.5;
    display: flex; gap: 10px; align-items: flex-start;
}
.password-hint-box i { color: #f59e0b; font-size: var(--text-base); margin-top: 2px; flex-shrink: 0; }
.password-hint-box code {
    background: rgba(230,57,70,0.12); color: var(--danger);
    padding: 1px 5px; border-radius: 4px; font-weight: var(--weight-bold);
}
.password-actions {
    width: 100%; display: flex; gap: 10px; margin-top: 6px;
}
.btn-pw-cancel {
    flex: 1; padding: 11px; border-radius: 10px;
    border: 1.5px solid var(--border); background: var(--bg);
    color: var(--text-muted); font-size: var(--text-sm); font-weight: var(--weight-bold);
    cursor: pointer; transition: 0.15s;
}
.btn-pw-cancel:hover { background: var(--border); color: var(--text); }
.btn-pw-submit {
    flex: 1.5; padding: 11px; border-radius: 10px;
    border: none; background: linear-gradient(135deg, var(--danger), var(--danger-dark));
    color: white; font-size: 13.5px; font-weight: var(--weight-extrabold);
    cursor: pointer; transition: 0.18s;
    box-shadow: 0 4px 14px var(--danger-glow);
}
.btn-pw-submit:hover { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(230,57,70,0.4); }

/* ── MERGER SHELL ── */
.merger-shell {
    margin-top: 64px;
    height: calc(100vh - 64px);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* ── TOOL NAVBAR ── */
.tool-navbar {
    flex-shrink: 0;
    height: 58px;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    gap: 16px;
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.04);
    z-index: 50;
}

.tool-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn-back {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: var(--danger-light);
    border: 1px solid rgba(230, 57, 70, 0.2);
    color: var(--danger);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-size: var(--text-xs);
    transition: 0.15s;
    flex-shrink: 0;
}

.btn-back:hover {
    background: var(--danger);
    color: white;
}

.brand-icon {
    width: 34px;
    height: 34px;
    border-radius: 9px;
    background: linear-gradient(135deg, var(--danger), var(--danger-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-base);
    color: white;
    box-shadow: 0 3px 10px var(--danger-glow);
}

.brand-name {
    font-size: var(--text-sm);
    font-weight: var(--weight-extrabold);
    color: var(--text);
    line-height: 1.2;
}

.brand-sub {
    font-size: 10px;
    color: var(--text-muted);
    font-weight: var(--weight-medium);
}

.btn-add-more {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 8px 16px;
    border-radius: 8px;
    background: var(--danger-light);
    border: 1.5px solid rgba(230, 57, 70, 0.25);
    color: var(--danger);
    font-size: 12.5px;
    font-weight: var(--weight-bold);
    cursor: pointer;
    transition: 0.15s;
}

.btn-add-more:hover {
    background: var(--danger);
    color: white;
    border-color: var(--danger);
}

/* ── MERGER BODY ── */
.merger-body {
    flex: 1;
    overflow-y: auto;
    padding: 0;
}

/* ── UPLOAD HERO ── */
.upload-hero {
    min-height: calc(100vh - 64px - 58px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px 20px;
}

.upload-hero-inner {
    width: 100%;
    max-width: 620px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 22px;
    text-align: center;
}

.hero-icon {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 40px;
}

.hero-icon .fa-file-pdf {
    color: var(--danger);
}

.hero-icon .fa-file-image {
    color: #f59e0b;
}

.hero-icon .hero-plus {
    font-size: 20px;
    color: var(--text-muted);
    background: var(--card-bg);
    border: 1.5px solid var(--border);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-title {
    font-size: var(--text-2xl);
    font-weight: 900;
    background: linear-gradient(135deg, var(--danger), #ff6b6b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

body.dark-mode .hero-title {
    background: linear-gradient(135deg, #ff6b6b, #ffd166);
    -webkit-background-clip: text;
    background-clip: text;
}

.hero-sub {
    font-size: var(--text-sm);
    color: var(--text-muted);
    max-width: 460px;
}

.hero-drop-zone {
    width: 100%;
    padding: 36px 28px;
    border: 2.5px dashed var(--border);
    border-radius: 20px;
    background: var(--card-bg);
    cursor: pointer;
    transition: 0.2s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.hero-drop-zone:hover,
.hero-drop-zone.dragover {
    border-color: var(--danger);
    background: var(--danger-light);
    transform: scale(1.01);
    box-shadow: 0 0 0 4px var(--danger-glow);
}

.drop-icon {
    font-size: 42px;
    color: var(--danger);
}

.drop-main {
    font-size: var(--text-md);
    font-weight: var(--weight-bold);
    color: var(--text);
}

.drop-hint {
    font-size: 12.5px;
    color: var(--text-muted);
}

.btn-hero-upload {
    padding: 13px 32px;
    background: linear-gradient(135deg, var(--danger), var(--danger-dark));
    color: white;
    border: none;
    border-radius: 12px;
    font-size: var(--text-base);
    font-weight: var(--weight-extrabold);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: 0.18s;
    box-shadow: 0 4px 18px var(--danger-glow);
}

.btn-hero-upload:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(230, 57, 70, 0.4);
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.feature-pill {
    padding: 5px 14px;
    border-radius: 20px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    font-size: 11.5px;
    font-weight: var(--weight-semibold);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}

.feature-pill i {
    color: var(--success);
}

/* ── FILE SECTION ── */
.file-section {
    display: flex;
    flex-direction: column;
    gap: 0;
    padding: 0 0 120px 0;
    /* bottom pad for footer */
}

.upload-compact-bar {
    background: var(--danger-light);
    border-bottom: 2px dashed rgba(230, 57, 70, 0.3);
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    color: var(--danger);
    transition: 0.15s;
}

.upload-compact-bar:hover {
    background: rgba(230, 57, 70, 0.14);
}

.upload-compact-bar i {
    font-size: var(--text-md);
}

.compact-hint {
    font-size: var(--text-xs);
    color: var(--text-muted);
    margin-left: auto;
    font-weight: var(--weight-medium);
}

.upload-compact-bar.dragover {
    background: rgba(230, 57, 70, 0.18);
}

.file-list-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
}

.file-list-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12.5px;
    font-weight: var(--weight-bold);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-clear-all {
    padding: 5px 12px;
    border-radius: 7px;
    background: none;
    border: 1.5px solid var(--border);
    font-size: var(--text-xs);
    font-weight: var(--weight-bold);
    color: var(--text-muted);
    cursor: pointer;
    transition: 0.13s;
    display: flex;
    align-items: center;
    gap: 5px;
}

.btn-clear-all:hover {
    border-color: var(--danger);
    color: var(--danger);
}

.file-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.drag-hint-text {
    text-align: center;
    padding: 16px;
    font-size: var(--text-xs);
    color: var(--text-muted);
    opacity: 0.7;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

/* ── FILE CARD ── */
.file-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 20px;
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    transition: background 0.15s;
    position: relative;
}

.file-card:hover {
    background: var(--bg);
}

.file-card.dragging {
    opacity: 0.45;
    box-shadow: inset 0 0 0 2px var(--danger);
}

.file-card.drag-over {
    border-top: 2.5px solid var(--danger);
}

.file-card-handle {
    color: var(--text-muted);
    opacity: 0.4;
    cursor: grab;
    font-size: var(--text-sm);
    flex-shrink: 0;
    padding: 4px 2px;
    user-select: none;
}

.file-card-handle:active {
    cursor: grabbing;
}

.file-card-thumb {
    width: 56px;
    height: 68px;
    flex-shrink: 0;
    border-radius: 8px;
    overflow: hidden;
    background: var(--bg);
    border: 1.5px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.file-card-thumb img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.file-card-thumb canvas {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.thumb-placeholder {
    font-size: var(--text-xl);
    opacity: 0.35;
}

.thumb-spinner {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 2.5px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--danger);
    animation: spin 0.7s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.file-card-info {
    flex: 1;
    min-width: 0;
}

.file-card-name {
    font-size: 13.5px;
    font-weight: var(--weight-bold);
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

.file-card-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 4px;
    flex-wrap: wrap;
}

.badge {
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 10.5px;
    font-weight: var(--weight-extrabold);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}

.badge-pdf {
    background: rgba(230, 57, 70, 0.12);
    color: #e63946;
    border: 1px solid rgba(230, 57, 70, 0.25);
}

.badge-img {
    background: rgba(245, 158, 11, 0.12);
    color: #d97706;
    border: 1px solid rgba(245, 158, 11, 0.25);
}

.badge-pages {
    background: var(--bg);
    color: var(--text-muted);
    border: 1px solid var(--border);
}

.file-size-text {
    font-size: 11.5px;
    color: var(--text-muted);
}

.file-card-actions {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 6px;
}

.btn-remove {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: none;
    border: 1.5px solid var(--border);
    color: var(--text-muted);
    cursor: pointer;
    font-size: var(--text-xs);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: 0.13s;
}

.btn-remove:hover {
    background: #ef4444;
    color: white;
    border-color: #ef4444;
}

/* ── FOOTER ACTION BAR ── */
.merger-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: var(--bg);
    border-top: 1px solid var(--border);
    box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.15);
    padding: 12px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.footer-info {
    display: flex;
    gap: 16px;
    align-items: center;
}

.footer-stat {
    display: flex;
    align-items: center;
    gap: 7px;
    font-size: var(--text-sm);
    font-weight: var(--weight-bold);
    color: var(--text-muted);
}

.footer-stat i {
    color: var(--danger);
}

.footer-settings {
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-setting-label {
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    color: var(--text-muted);
    white-space: nowrap;
}

.footer-select {
    padding: 7px 10px;
    border-radius: 8px;
    border: 1.5px solid var(--border);
    background: var(--card-bg);
    color: var(--text);
    font-size: 12.5px;
    font-weight: var(--weight-semibold);
    outline: none;
    font-family: inherit;
    cursor: pointer;
    transition: 0.13s;
}

.footer-select:focus {
    border-color: var(--danger);
}

.btn-merge {
    padding: 12px 28px;
    background: linear-gradient(135deg, var(--danger), #c1121f);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: var(--text-base);
    font-weight: var(--weight-extrabold);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: 0.18s;
    white-space: nowrap;
    box-shadow: 0 4px 18px var(--danger-glow);
}

.btn-merge:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(230, 57, 70, 0.45);
}

.btn-merge:active {
    transform: translateY(0);
}

/* ── SEO SECTION ── */
.seo-section {
    background: var(--card-bg);
    border-top: 1px solid var(--border);
    padding: 60px 20px;
}

.seo-inner {
    max-width: 900px;
    margin: 0 auto;
}

.seo-inner h2 {
    font-size: var(--text-xl);
    font-weight: var(--weight-extrabold);
    color: var(--text);
    margin-bottom: 16px;
}

.seo-inner p {
    font-size: var(--text-sm);
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 14px;
}

.seo-inner strong {
    color: var(--text);
}

.faq-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 32px;
}

.faq-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 18px;
}

.faq-q {
    font-size: 13.5px;
    font-weight: var(--weight-bold);
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.faq-q i {
    color: var(--danger);
    font-size: var(--text-sm);
}

.faq-a {
    font-size: var(--text-sm);
    color: var(--text-muted);
    line-height: 1.7;
}

/* ── RESPONSIVE ── */
@media (max-width: 640px) {
    .hero-title {
        font-size: var(--text-xl);
    }

    .hero-sub {
        font-size: var(--text-sm);
    }

    .faq-grid {
        grid-template-columns: 1fr;
    }

    .merger-footer {
        flex-direction: column;
        align-items: stretch;
    }

    .btn-merge {
        width: 100%;
        justify-content: center;
    }

    .footer-info {
        justify-content: center;
    }

    .footer-settings {
        justify-content: center;
    }

    .file-card {
        padding: 10px 14px;
        gap: 10px;
    }

    .brand-sub {
        display: none;
    }
}

@media print {
    .seo-section {
        display: none;
    }
}

/* ── INLINE PASSWORD FORM ── */
.inline-pw-form {
    display: flex;
    gap: 8px;
    margin-top: 8px;
    width: 100%;
    align-items: center;
}
.inline-pw-input {
    flex: 1;
    padding: 6px 10px;
    font-size: var(--text-xs);
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text);
    outline: none;
    min-width: 0;
}
.inline-pw-input:focus {
    border-color: var(--danger);
    box-shadow: 0 0 0 2px var(--danger-glow);
}
.inline-pw-btn {
    padding: 6px 12px;
    background: linear-gradient(135deg, var(--danger), var(--danger-dark));
    color: white;
    border: none;
    border-radius: 6px;
    font-size: var(--text-xs);
    font-weight: var(--weight-bold);
    cursor: pointer;
    box-shadow: 0 2px 6px var(--danger-glow);
    white-space: nowrap;
    transition: 0.15s;
}
.inline-pw-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 10px rgba(230,57,70,0.3);
}
.inline-pw-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}