/* ===== Reset & Base ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--primary:#6366f1;--primary-dark:#4f46e5;--success:#10b981;--warning:#f59e0b;--danger:#ef4444;--info:#3b82f6;--gray:#6b7280;--dark:#1e293b;--light:#f8fafc;--card:#fff;--border:#e2e8f0;--text:#1e293b;--text-muted:#94a3b8;--radius:10px;--sidebar-w:240px}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,'Noto Sans SC',sans-serif;background:var(--light);color:var(--text);font-size:14px;line-height:1.6}
a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}
img{max-width:100%;display:block}
ul,ol{list-style:none}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;gap:4px;padding:8px 18px;border:none;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s;text-decoration:none}
.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark);text-decoration:none}
.btn-success{background:var(--success);color:#fff}.btn-success:hover{text-decoration:none;opacity:.9}
.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{text-decoration:none;opacity:.9}
.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text)}.btn-outline:hover{background:var(--light);text-decoration:none}
.btn-sm{padding:4px 12px;font-size:12px}.btn-lg{padding:12px 32px;font-size:16px}
.btn-group{display:flex;gap:8px;flex-wrap:wrap}

/* ===== Forms ===== */
.form-group{margin-bottom:16px}
.form-label{display:block;margin-bottom:6px;font-weight:600;font-size:13px;color:var(--text)}
.form-label .required{color:var(--danger)}
.form-control{width:100%;padding:9px 14px;border:1px solid var(--border);border-radius:8px;font-size:14px;font-family:inherit;transition:border-color .2s;background:#fff;color:var(--text)}
.form-control:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(99,102,241,.1)}
textarea.form-control{resize:vertical;min-height:80px}
select.form-control{cursor:pointer}
.form-hint{font-size:12px;color:var(--text-muted);margin-top:4px}
.form-row{display:flex;gap:16px;flex-wrap:wrap}.form-row>.form-group{flex:1;min-width:200px}

/* ===== Cards ===== */
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:20px;overflow:hidden}
.card-header{padding:16px 20px;border-bottom:1px solid var(--border);font-weight:600;font-size:15px;display:flex;justify-content:space-between;align-items:center}
.card-body{padding:20px}
.card-title{font-size:15px;font-weight:600}

/* ===== Tables ===== */
table{width:100%;border-collapse:collapse}
th,td{padding:10px 16px;text-align:left;border-bottom:1px solid var(--border);font-size:13px}
th{background:var(--light);font-weight:600;color:var(--text-muted);font-size:12px;text-transform:uppercase;letter-spacing:.5px}
tr:hover{background:var(--light)}

/* ===== Tags & Badges ===== */
.tag{display:inline-block;padding:3px 10px;border-radius:20px;font-size:12px;font-weight:500}
.tag-blue{background:#dbeafe;color:#1e40af}.tag-green{background:#d1fae5;color:#065f46}
.tag-orange{background:#fef3c7;color:#92400e}.tag-gray{background:#f3f4f6;color:#374151}
.tag-purple{background:#ede9fe;color:#5b21b6}.tag-red{background:#fee2e2;color:#991b1b}
.badge{display:inline-flex;align-items:center;justify-content:center;min-width:20px;height:20px;padding:0 6px;border-radius:10px;background:var(--danger);color:#fff;font-size:11px;font-weight:600}

/* ===== Flash Messages ===== */
.flash-message{padding:12px 20px;border-radius:8px;margin-bottom:16px;font-size:14px}
.flash-success{background:#d1fae5;color:#065f46;border:1px solid #6ee7b7}
.flash-error{background:#fee2e2;color:#991b1b;border:1px solid #fca5a5}
.flash-info{background:#dbeafe;color:#1e40af;border:1px solid #93c5fd}

/* ===== Stats Grid ===== */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px;margin-bottom:20px}
.stat-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;text-align:center}
.stat-card h3{font-size:32px;font-weight:700;color:var(--primary);margin-bottom:4px}
.stat-card p{color:var(--text-muted);font-size:13px}
.stat-card .stat-icon{font-size:28px;margin-bottom:8px}

/* ===== Progress Bar ===== */
.progress-bar{width:100%;height:8px;background:var(--border);border-radius:4px;overflow:hidden}
.progress-bar-fill{height:100%;background:var(--success);border-radius:4px;transition:width .3s}

/* ===== Admin Layout ===== */
.layout{display:flex;min-height:100vh}
.sidebar{width:var(--sidebar-w);background:var(--dark);color:#cbd5e1;position:fixed;top:0;left:0;bottom:0;overflow-y:auto;z-index:100;transition:transform .3s}
.sidebar-brand{padding:20px;border-bottom:1px solid #334155}
.sidebar-brand h1{font-size:18px;color:#fff;font-weight:700}
.sidebar-brand p{font-size:12px;color:#64748b;margin-top:4px}
.sidebar-nav{padding:12px 0}
.sidebar-section{padding:12px 20px 6px;font-size:11px;text-transform:uppercase;color:#475569;font-weight:600;letter-spacing:1px}
.sidebar-nav a{display:flex;align-items:center;gap:10px;padding:10px 20px;color:#cbd5e1;font-size:14px;transition:all .2s}
.sidebar-nav a:hover{background:#334155;color:#fff;text-decoration:none}
.sidebar-nav a.active{background:var(--primary);color:#fff}
.sidebar-nav a .icon{font-size:16px;width:20px;text-align:center}
.main-content{flex:1;margin-left:var(--sidebar-w);padding:24px;min-width:0}
.menu-toggle{display:none;position:fixed;top:16px;left:16px;z-index:200;background:var(--dark);color:#fff;border:none;border-radius:8px;width:40px;height:40px;font-size:20px;cursor:pointer}

/* ===== Page Header ===== */
.page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;flex-wrap:wrap;gap:12px}
.page-title{font-size:22px;font-weight:700}
.page-subtitle{color:var(--text-muted);font-size:13px;margin-top:4px}
.breadcrumb{font-size:13px;color:var(--text-muted);margin-bottom:16px}
.breadcrumb a{color:var(--primary)}.breadcrumb .separator{margin:0 8px}

/* ===== Login Page ===== */
.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%)}
.login-card{background:#fff;border-radius:16px;padding:40px;width:100%;max-width:400px;box-shadow:0 20px 60px rgba(0,0,0,.15)}
.login-card h1{font-size:24px;font-weight:700;margin-bottom:8px;text-align:center}
.login-card .subtitle{text-align:center;color:var(--text-muted);margin-bottom:28px;font-size:14px}
.login-card .login-type{text-align:center;margin-bottom:20px;font-size:13px;color:var(--primary);font-weight:600}
.login-card .form-group{margin-bottom:16px}
.login-card .btn{width:100%;justify-content:center;margin-top:8px}
.login-error{background:#fee2e2;color:#991b1b;padding:10px 16px;border-radius:8px;margin-bottom:16px;font-size:13px;text-align:center}
.login-success{background:#d1fae5;color:#065f46;padding:10px 16px;border-radius:8px;margin-bottom:16px;font-size:13px;text-align:center}
.login-links{text-align:center;margin-top:20px;font-size:13px}
.login-links a{color:var(--text-muted)}.login-links a:hover{color:var(--primary)}

/* ===== Calendar Grid (Agent) ===== */
.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:8px;margin-bottom:24px}
.calendar-day{background:var(--card);border:2px solid var(--border);border-radius:10px;padding:12px;cursor:pointer;transition:all .2s;text-decoration:none;color:var(--text);position:relative;min-height:90px}
.calendar-day:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:0 4px 12px rgba(0,0,0,.08);text-decoration:none}
.calendar-day.completed{border-color:var(--success);background:#f0fdf4}
.calendar-day.in-progress{border-color:var(--warning);background:#fffbeb}
.calendar-day.not-started{opacity:.7}
.calendar-day .day-num{font-size:20px;font-weight:700;color:var(--primary)}
.calendar-day .day-type{font-size:11px;color:var(--text-muted);margin-top:4px}
.calendar-day .day-status{position:absolute;top:8px;right:8px;width:10px;height:10px;border-radius:50%}
.calendar-day .day-status.completed{background:var(--success)}
.calendar-day .day-status.in-progress{background:var(--warning)}
.calendar-day .day-status.not-started{background:var(--border)}

/* ===== Card Header Wrap ===== */
.card-header-wrap{flex-wrap:wrap;gap:10px}
.card-header-title{font-weight:600;font-size:15px}
.card-header-actions{display:flex;gap:8px;flex-wrap:wrap;align-items:center}

/* ===== Mobile Top Bar (Hamburger spacing) ===== */
.mobile-top-bar{display:none}

/* ===== Task Detail Panels ===== */
.task-panel{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:16px;overflow:hidden}
.task-panel-header{padding:14px 20px;background:var(--light);border-bottom:1px solid var(--border);font-weight:600;font-size:15px;display:flex;align-items:center;gap:8px}
.task-panel-body{padding:20px}
.task-panel-body p{margin-bottom:8px;line-height:1.8}
.task-content-section{margin-bottom:16px;padding-bottom:16px;border-bottom:1px solid var(--border)}
.task-content-section:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}
.content-label{font-size:12px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:6px}
.content-text{font-size:14px;line-height:1.8}
.content-text.dialect{color:#7c3aed}
.content-text.mandarin{color:var(--text)}

/* ===== Material Cards ===== */
.material-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:16px}
.material-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.material-thumb{height:120px;background:var(--light);display:flex;align-items:center;justify-content:center;font-size:40px}
.material-info{padding:12px}
.material-info h4{font-size:13px;font-weight:600;margin-bottom:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.material-info p{font-size:11px;color:var(--text-muted)}

/* ===== Empty State ===== */
.empty-state{text-align:center;padding:40px 20px;color:var(--text-muted)}
.empty-state .icon{font-size:48px;margin-bottom:12px}
.empty-state h3{font-size:16px;margin-bottom:8px;color:var(--text)}

/* ===== Install Page ===== */
.install-container{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--light);padding:20px}
.install-card{background:#fff;border-radius:16px;padding:40px;width:100%;max-width:600px;box-shadow:0 4px 20px rgba(0,0,0,.08)}
.install-card h1{text-align:center;margin-bottom:8px}
.install-card .subtitle{text-align:center;color:var(--text-muted);margin-bottom:24px}
.install-step{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--border)}
.install-step:last-child{border-bottom:none}
.install-step .step-icon{font-size:20px;flex-shrink:0}
.install-step .step-content h4{font-size:14px;font-weight:600;margin-bottom:4px}
.install-step .step-content p{font-size:13px;color:var(--text-muted)}

/* ===== Copy Button & Copyable Fields ===== */
.copyable-label{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:6px}
.copyable-label>span{font-size:12px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px}
.btn-copy{display:inline-flex;align-items:center;gap:3px;padding:4px 10px;font-size:12px;font-weight:500;border:1px solid var(--border);border-radius:6px;background:var(--card);color:var(--gray);cursor:pointer;transition:all .2s;flex-shrink:0}
.btn-copy:hover{background:var(--primary);color:#fff;border-color:var(--primary)}
.btn-copy.copied{background:var(--success);color:#fff;border-color:var(--success)}
.copyable-text{border-left:3px solid transparent;transition:border-color .2s;padding-left:8px}

/* ===== Slot Header ===== */
.slot-header{margin-bottom:10px}

/* ===== Material Item ===== */
.material-item{padding:8px 12px;background:var(--light);border-radius:8px;margin-bottom:6px;display:flex;align-items:center;justify-content:space-between;gap:8px}

/* ===== Floating Copy Action Bar ===== */
.copy-action-bar{position:fixed;bottom:0;left:0;right:0;background:var(--dark);color:#fff;padding:14px 20px;display:flex;align-items:center;justify-content:center;gap:16px;z-index:300;box-shadow:0 -4px 20px rgba(0,0,0,.15);flex-wrap:wrap}
.copy-action-text{font-size:14px;font-weight:500}
.copy-action-close{background:none;border:none;color:#94a3b8;font-size:18px;cursor:pointer;padding:4px 8px;flex-shrink:0}
.copy-action-close:hover{color:#fff}
.btn-warning{background:var(--warning);color:#fff}.btn-warning:hover{opacity:.9;text-decoration:none}
.btn-pulse{animation:pulse 1.5s ease-in-out infinite}
@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.05)}}
.copy-action-bar.slide-up{animation:slideUp .3s ease-out}
@keyframes slideUp{from{transform:translateY(100%)}to{transform:translateY(0)}}

/* ===== Sidebar Overlay (Mobile) ===== */
.sidebar-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.4);z-index:99}

/* ===== Flex Wrap Gap ===== */
.flex-wrap-gap{flex-wrap:wrap;gap:12px}

/* ===== Utility ===== */
.text-center{text-align:center}.text-muted{color:var(--text-muted)}
.text-success{color:var(--success)}.text-danger{color:var(--danger)}.text-warning{color:var(--warning)}
.font-bold{font-weight:700}.mb-1{margin-bottom:8px}.mb-2{margin-bottom:16px}.mt-2{margin-top:16px}
.flex{display:flex}.items-center{align-items:center}.justify-between{justify-content:space-between}
.gap-1{gap:8px}.gap-2{gap:16px}.w-full{width:100%}

/* ===== Responsive - Tablet (<=1024px) ===== */
@media(max-width:1024px){
:root{--sidebar-w:200px}
.sidebar-brand h1{font-size:16px}
.sidebar-nav a{font-size:13px;padding:9px 16px}
.main-content{padding:20px}
.page-title{font-size:20px}
.task-panel-body{padding:16px}
.calendar-grid{grid-template-columns:repeat(6,1fr)}
.stats-grid{grid-template-columns:repeat(2,1fr)}
.material-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
}

/* ===== Responsive - Mobile (<=768px) ===== */
@media(max-width:768px){
:root{--sidebar-w:0px}
.mobile-top-bar{display:block;height:56px}
.sidebar{transform:translateX(-100%);width:240px}
.sidebar.open{transform:translateX(0)}
.sidebar.open~.sidebar-overlay{display:block}
.main-content{margin-left:0;padding:14px;padding-top:0}
.menu-toggle{display:flex;align-items:center;justify-content:center}
.page-header{padding-left:64px;padding-top:6px;min-height:40px;justify-content:flex-start;margin-bottom:16px}
.card-header{padding:12px 14px}
.card-header-wrap{align-items:flex-start}
.card-header-actions{width:100%;justify-content:flex-start}
.calendar-grid{grid-template-columns:repeat(4,1fr);gap:6px}
.calendar-day{min-height:72px;padding:8px}
.calendar-day .day-num{font-size:16px}
.stats-grid{grid-template-columns:repeat(2,1fr);gap:10px}
.stat-card{padding:14px}
.stat-card h3{font-size:24px}
.form-row{flex-direction:column}
.page-title{font-size:18px}
.task-panel-header{padding:12px 14px;font-size:14px}
.task-panel-body{padding:14px}
.content-text{font-size:13px;line-height:1.7}
.content-text.dialect,.content-text.mandarin{font-size:13px}
.copyable-label{flex-wrap:wrap}
.btn-copy{padding:3px 8px;font-size:11px}
.btn{padding:7px 14px;font-size:13px}
.btn-group{gap:6px}
.btn-group.nav-bottom{flex-direction:column;width:100%}
.btn-group.nav-bottom .btn{width:100%;justify-content:center}
.material-item{flex-direction:column;align-items:flex-start}
.material-item .btn{align-self:flex-end}
.copy-action-bar{padding:10px 14px;gap:10px}
.copy-action-text{font-size:13px}
th,td{padding:8px 10px;font-size:12px}
.login-card{padding:28px 24px;margin:16px}
}

/* ===== Copy Library Styles ===== */
.copy-tabs{display:flex;gap:8px;flex-wrap:wrap}
.copy-tabs a{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:8px;font-size:14px;font-weight:500;color:var(--text);background:var(--light);border:1px solid var(--border);text-decoration:none;transition:all .2s}
.copy-tabs a:hover{background:#f1f5f9}
.copy-tabs a.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.copy-list{display:flex;flex-direction:column;gap:16px}
.copy-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.copy-card-header{padding:14px 20px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;background:#fafafa}
.copy-card-title{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:15px;font-weight:600}
.copy-card-body{padding:20px}
.copy-card-footer{padding:10px 20px;background:var(--light);border-top:1px solid var(--border);font-size:12px}
.copy-field{margin-bottom:16px;padding-bottom:16px;border-bottom:1px solid var(--border)}
.copy-field:last-child{margin-bottom:0;padding-bottom:0;border-bottom:none}
.copy-field-label{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:6px}
.copy-field-label>span{font-size:12px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px}
.copy-field-text{font-size:14px;line-height:1.8;padding-left:8px;border-left:3px solid transparent}
.copy-field-text.local_dialect{border-left-color:#7c3aed;color:#5b21b6}
.copy-field-text.mandarin{border-left-color:var(--primary);color:var(--text)}
.copy-field-text.video_title{border-left-color:#0ea5e9}
.copy-field-text.publish_title{border-left-color:#f59e0b}
.copy-field-text.acceptance_criteria{border-left-color:var(--success);color:#065f46}
.copied-badge{background:#ede9fe;color:#5b21b6}

/* ===== Responsive - Small Mobile (<=480px) ===== */
@media(max-width:480px){
.mobile-top-bar{height:48px}
.main-content{padding:12px;padding-top:0}
.page-header{padding-left:46px;padding-top:4px;min-height:36px;margin-bottom:14px}
.page-title{font-size:16px}
.page-subtitle{font-size:12px}
.card-header{padding:10px 12px}
.card-header-title{font-size:14px}
.card-header-actions{gap:6px}
.card-header-actions .tag{padding:2px 8px;font-size:11px}
.calendar-grid{grid-template-columns:repeat(2,1fr);gap:8px}
.calendar-day{min-height:90px;padding:12px;border-radius:12px}
.calendar-day .day-num{font-size:18px}
.calendar-day .day-type{font-size:12px}
.stats-grid{grid-template-columns:1fr}
.task-panel-header{font-size:13px;padding:10px 12px}
.task-panel-body{padding:12px}
.content-text{font-size:12px;line-height:1.6}
.copyable-label>span{font-size:11px}
.btn-copy{padding:3px 6px;font-size:10px}
.btn{padding:6px 12px;font-size:12px}
.stat-card h3{font-size:20px}
.stat-card .stat-icon{font-size:22px}
.login-card h1{font-size:20px}
.copy-action-bar{flex-direction:column;gap:6px;text-align:center}
.copy-action-text{font-size:12px}
.copy-card-header{padding:12px}
.copy-card-body{padding:14px}
.copy-card-title{font-size:14px}
.copy-field-text{font-size:13px}
.copy-tabs a{padding:6px 12px;font-size:13px}
}