/* ============================================================
   InfiniCloud - Estilos Globais
   Design premium dark mode com identidade visual Infini Solutions
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ---- Variáveis de Design ---- */
:root {
    --primary:      #6366f1;
    --primary-dark: #4f46e5;
    --primary-glow: rgba(99, 102, 241, 0.35);
    --accent:       #8b5cf6;
    --success:      #10b981;
    --danger:       #ef4444;
    --warning:      #f59e0b;

    --bg:           #0d0f17;
    --bg-card:      rgba(255,255,255,0.04);
    --bg-card-hover:rgba(255,255,255,0.07);
    --border:       rgba(255,255,255,0.08);
    --border-focus: rgba(99,102,241,0.6);

    --text:         #f1f5f9;
    --text-muted:   #94a3b8;
    --text-dim:     #475569;

    --radius-sm:    6px;
    --radius:       12px;
    --radius-lg:    18px;
    --shadow:       0 4px 24px rgba(0,0,0,0.4);
    --shadow-glow:  0 0 40px rgba(99,102,241,0.15);

    --transition:   all 0.2s cubic-bezier(0.4,0,0.2,1);
}

/* ---- Reset e Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--accent); }

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary); }

/* ============================================================
   TELA DE LOGIN
   ============================================================ */
#login-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(99,102,241,0.12) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(139,92,246,0.10) 0%, transparent 50%),
        var(--bg);
    padding: 20px;
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 48px 40px;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow), var(--shadow-glow);
    animation: slideUp 0.5s ease;
}

.login-logo {
    text-align: center;
    margin-bottom: 32px;
}

.login-logo .brand-icon {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: var(--radius);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    font-size: 22px;
    color: #fff;
    box-shadow: 0 8px 32px var(--primary-glow);
}

.login-logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.5px;
}

.login-logo p {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.form-group { margin-bottom: 20px; }

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 0.95rem;
    font-family: inherit;
    transition: var(--transition);
    outline: none;
}

.form-group input:focus {
    border-color: var(--border-focus);
    background: rgba(99,102,241,0.08);
    box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
}

.form-group input::placeholder { color: var(--text-dim); }

/* ---- Botão Principal ---- */
.btn-primary {
    width: 100%;
    padding: 13px 24px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border: none;
    border-radius: var(--radius-sm);
    color: #fff;
    font-size: 0.95rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 24px var(--primary-glow);
}

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

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Botão Secundário */
.btn-secondary {
    padding: 8px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-size: 0.85rem;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    color: var(--text);
    border-color: rgba(255,255,255,0.15);
}

/* Botão Danger */
.btn-danger {
    padding: 8px 14px;
    background: rgba(239,68,68,0.1);
    border: 1px solid rgba(239,68,68,0.25);
    border-radius: var(--radius-sm);
    color: #ef4444;
    font-size: 0.82rem;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
}

.btn-danger:hover {
    background: rgba(239,68,68,0.2);
    border-color: rgba(239,68,68,0.4);
}

/* Botão Ação (pequeno) */
.btn-action {
    padding: 7px 12px;
    background: rgba(99,102,241,0.12);
    border: 1px solid rgba(99,102,241,0.25);
    border-radius: var(--radius-sm);
    color: var(--primary);
    font-size: 0.82rem;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
}

.btn-action:hover {
    background: rgba(99,102,241,0.22);
    border-color: rgba(99,102,241,0.4);
}

/* Alerta de erro */
.alert-error {
    padding: 12px 16px;
    background: rgba(239,68,68,0.1);
    border: 1px solid rgba(239,68,68,0.25);
    border-radius: var(--radius-sm);
    color: #fca5a5;
    font-size: 0.875rem;
    margin-bottom: 20px;
    display: none;
}

/* ============================================================
   LAYOUT DO DASHBOARD
   ============================================================ */
#app-screen { display: none; }

.app-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(13,15,23,0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 0 32px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.header-brand .brand-icon-sm {
    width: 34px;
    height: 34px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: #fff;
}

.header-brand h2 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text);
}

.header-brand span {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-left: 2px;
    font-weight: 400;
}

.header-user {
    display: flex;
    align-items: center;
    gap: 14px;
}

.header-user .user-name {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.app-main {
    max-width: 1100px;
    margin: 0 auto;
    padding: 36px 24px;
}

/* ============================================================
   ZONA DE UPLOAD
   ============================================================ */
.upload-zone {
    border: 2px dashed var(--border);
    border-radius: var(--radius-lg);
    padding: 48px 24px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: var(--bg-card);
    position: relative;
    overflow: hidden;
    margin-bottom: 32px;
}

.upload-zone::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(99,102,241,0.05), rgba(139,92,246,0.03));
    opacity: 0;
    transition: var(--transition);
}

.upload-zone:hover::before,
.upload-zone.drag-over::before { opacity: 1; }

.upload-zone:hover,
.upload-zone.drag-over {
    border-color: var(--primary);
    background: rgba(99,102,241,0.06);
}

.upload-zone.drag-over {
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.upload-icon {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 16px;
    display: block;
    transition: var(--transition);
}

.upload-zone:hover .upload-icon { transform: translateY(-4px); }

.upload-zone h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
}

.upload-zone p {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.upload-zone .browse-btn {
    display: inline-block;
    margin-top: 16px;
    padding: 9px 22px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: var(--radius-sm);
    color: #fff;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.upload-zone .browse-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px var(--primary-glow);
}

#file-input { display: none; }

/* ---- Progress Bar ---- */
.upload-progress {
    display: none;
    margin-top: 16px;
}

.progress-bar-wrap {
    height: 6px;
    background: rgba(255,255,255,0.08);
    border-radius: 3px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 3px;
    width: 0%;
    transition: width 0.3s ease;
}

.progress-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-align: center;
    margin-top: 8px;
}

/* ============================================================
   TABELA DE ARQUIVOS
   ============================================================ */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.section-header h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
}

.section-header .badge {
    padding: 3px 10px;
    background: rgba(99,102,241,0.15);
    border: 1px solid rgba(99,102,241,0.25);
    border-radius: 99px;
    font-size: 0.75rem;
    color: var(--primary);
    font-weight: 600;
}

.files-table-wrap {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.files-table {
    width: 100%;
    border-collapse: collapse;
}

.files-table th {
    padding: 14px 20px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-align: left;
    background: rgba(255,255,255,0.02);
    border-bottom: 1px solid var(--border);
}

.files-table td {
    padding: 16px 20px;
    font-size: 0.875rem;
    color: var(--text);
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

.files-table tr:last-child td { border-bottom: none; }

.files-table tr:hover td { background: rgba(255,255,255,0.02); }

/* Célula do arquivo */
.file-cell {
    display: flex;
    align-items: center;
    gap: 12px;
}

.file-icon-wrap {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}

.file-icon-wrap.icon-pdf   { background: rgba(239,68,68,0.12);  color: #ef4444; }
.file-icon-wrap.icon-image { background: rgba(16,185,129,0.12); color: #10b981; }
.file-icon-wrap.icon-zip   { background: rgba(245,158,11,0.12); color: #f59e0b; }
.file-icon-wrap.icon-word  { background: rgba(59,130,246,0.12); color: #3b82f6; }
.file-icon-wrap.icon-excel { background: rgba(16,185,129,0.12); color: #10b981; }
.file-icon-wrap.icon-other { background: rgba(148,163,184,0.12);color: #94a3b8; }

.file-name {
    font-weight: 500;
    color: var(--text);
    word-break: break-all;
    max-width: 260px;
}

.file-size-badge {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 2px;
}

/* Badge de link */
.links-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    border-radius: 99px;
    font-size: 0.75rem;
    font-weight: 600;
}

.links-badge.has-active {
    background: rgba(16,185,129,0.12);
    color: #10b981;
    border: 1px solid rgba(16,185,129,0.2);
}

.links-badge.no-active {
    background: rgba(148,163,184,0.08);
    color: var(--text-dim);
    border: 1px solid var(--border);
}

.actions-cell { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

/* Estado vazio */
.empty-state {
    text-align: center;
    padding: 60px 24px;
    color: var(--text-muted);
}

.empty-state i { font-size: 2.5rem; margin-bottom: 12px; color: var(--text-dim); }
.empty-state p { font-size: 0.9rem; }

/* ============================================================
   MODAL DE LINK
   ============================================================ */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(6px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
    animation: fadeIn 0.15s ease;
}

.modal-overlay.open { display: flex; }

.modal-box {
    background: #16192a;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 520px;
    padding: 32px;
    box-shadow: var(--shadow);
    animation: slideUp 0.25s ease;
}

.modal-box h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text);
}

.modal-box p.modal-sub {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 24px;
}

.modal-form label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}

.modal-form input[type="date"] {
    width: 100%;
    padding: 11px 16px;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 0.9rem;
    font-family: inherit;
    outline: none;
    margin-bottom: 8px;
    transition: var(--transition);
}

.modal-form input[type="date"]:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
}

.presets { display: flex; gap: 8px; margin-bottom: 20px; flex-wrap: wrap; }

.preset-btn {
    padding: 6px 14px;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    border-radius: 99px;
    color: var(--text-muted);
    font-size: 0.8rem;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
}

.preset-btn:hover,
.preset-btn.active {
    background: rgba(99,102,241,0.15);
    border-color: rgba(99,102,241,0.3);
    color: var(--primary);
}

.modal-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 8px; }

/* Caixa do link gerado */
.link-result {
    display: none;
    margin-top: 20px;
    padding: 16px;
    background: rgba(16,185,129,0.07);
    border: 1px solid rgba(16,185,129,0.2);
    border-radius: var(--radius-sm);
}

.link-result p {
    font-size: 0.75rem;
    color: #10b981;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 10px;
}

.link-copy-row {
    display: flex;
    gap: 8px;
    align-items: center;
}

.link-copy-row input {
    flex: 1;
    padding: 9px 12px;
    background: rgba(0,0,0,0.3);
    border: 1px solid rgba(16,185,129,0.2);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 0.82rem;
    font-family: 'Courier New', monospace;
    outline: none;
    cursor: text;
}

.btn-copy {
    padding: 9px 14px;
    background: rgba(16,185,129,0.12);
    border: 1px solid rgba(16,185,129,0.25);
    border-radius: var(--radius-sm);
    color: #10b981;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-copy:hover { background: rgba(16,185,129,0.22); }
.btn-copy.copied { color: #fff; background: #10b981; }

/* ============================================================
   TOAST
   ============================================================ */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    color: #fff;
    box-shadow: var(--shadow);
    animation: slideRight 0.3s ease;
    max-width: 340px;
}

.toast.toast-success { background: #059669; }
.toast.toast-error   { background: #dc2626; }
.toast.toast-info    { background: var(--primary-dark); }

/* ============================================================
   ANIMAÇÕES
   ============================================================ */
@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

@keyframes slideRight {
    from { opacity: 0; transform: translateX(30px); }
    to   { opacity: 1; transform: translateX(0); }
}

/* ============================================================
   RESPONSIVIDADE
   ============================================================ */
@media (max-width: 768px) {
    .app-header { padding: 0 16px; }
    .app-main { padding: 24px 16px; }
    .login-card { padding: 32px 24px; }

    .files-table th:nth-child(3),
    .files-table td:nth-child(3) { display: none; }

    .file-name { max-width: 160px; }
    .actions-cell { flex-direction: column; align-items: flex-start; }
}