/* ===== LinkTrack — Premium Dark UI ===== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--bg:#06060a;--bg2:#0d0d14;--card:rgba(17,17,27,0.7);--elev:#16162a;--border:rgba(255,255,255,0.06);--border2:rgba(255,255,255,0.12);
  --t1:#f0f0f5;--t2:#8888a0;--t3:#555570;--purple:#8b5cf6;--blue:#3b82f6;--cyan:#06b6d4;--green:#10b981;--red:#ef4444;
  --grad:linear-gradient(135deg,#8b5cf6,#3b82f6);--grad2:linear-gradient(135deg,#06b6d4,#8b5cf6);--r:12px;--r2:16px;--glow:0 0 40px rgba(139,92,246,0.1)}
html{scroll-behavior:smooth}
body{font-family:'Inter',-apple-system,sans-serif;background:var(--bg);color:var(--t1);min-height:100vh;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--cyan);text-decoration:none}a:hover{text-decoration:underline}

/* NAVBAR */
.navbar{display:flex;align-items:center;justify-content:space-between;padding:1rem 2rem;border-bottom:1px solid var(--border);background:rgba(6,6,10,0.8);backdrop-filter:blur(12px);position:sticky;top:0;z-index:100}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.logo{width:32px;height:32px;background:var(--grad);border-radius:9px;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;color:#fff}
.brand span{font-weight:700;font-size:1.1rem;color:var(--t1)}
.navbar-actions{display:flex;gap:10px;align-items:center}

/* PAGE */
.page{padding:2rem;max-width:1200px;margin:0 auto}

/* INPUTS */
input[type="text"],input[type="url"],input[type="password"],input[type="date"],input[type="search"],select.select-input{
  width:100%;padding:12px 16px;background:rgba(255,255,255,0.04);border:1px solid var(--border);border-radius:var(--r);
  color:var(--t1);font-size:0.9rem;font-family:inherit;outline:none;transition:border-color .3s,box-shadow .3s}
input:focus,select.select-input:focus{border-color:var(--purple);box-shadow:0 0 0 3px rgba(139,92,246,0.15)}
input::placeholder{color:var(--t3)}
select.select-input{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23888' d='M2 4l4 4 4-4'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:32px}
select.select-input option{background:#16162a;color:var(--t1)}

/* BUTTONS */
.btn{padding:12px 24px;border:none;border-radius:var(--r);font-family:inherit;font-size:0.9rem;font-weight:600;cursor:pointer;transition:all .3s;display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 4px 20px rgba(139,92,246,0.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 30px rgba(139,92,246,0.4);text-decoration:none}
.btn-secondary{background:rgba(255,255,255,0.06);color:var(--t1);border:1px solid var(--border)}
.btn-secondary:hover{background:rgba(255,255,255,0.1);text-decoration:none}
.btn-danger{background:rgba(239,68,68,0.1);color:var(--red);border:1px solid rgba(239,68,68,0.2)}
.btn-danger:hover{background:rgba(239,68,68,0.2);text-decoration:none}
.btn-sm{padding:8px 16px;font-size:.82rem}.btn-xs{padding:4px 8px;font-size:.75rem}
.btn-icon{width:36px;height:36px;padding:0;border-radius:10px;font-size:1rem}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important}

/* CREATE SECTION */
.create-section{margin-bottom:2rem}
.create-card{padding:1.5rem 2rem;background:var(--card);border:1px solid var(--border);border-radius:var(--r2);box-shadow:var(--glow)}
.create-card h3{font-size:1rem;font-weight:600;margin-bottom:1rem}
.create-row{display:flex;gap:10px;margin-bottom:10px}.create-row input{flex:1}.create-row .btn{white-space:nowrap;min-width:120px}
.create-options{display:flex;gap:10px}.create-options input,.create-options select{flex:1;padding:10px 14px;font-size:.85rem}
.create-result{display:flex;align-items:center;gap:12px;margin-top:12px;padding:12px 16px;background:rgba(139,92,246,0.06);border:1px solid rgba(139,92,246,0.15);border-radius:var(--r);animation:slideUp .3s}
.create-result .result-url{font-size:1rem;font-weight:600;color:var(--cyan);word-break:break-all;flex:1}

/* STAT CARDS */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin-bottom:2rem}
.stats-grid-4{grid-template-columns:repeat(4,1fr)}
.stat-card{background:var(--card);border:1px solid var(--border);border-radius:var(--r);padding:1.2rem;transition:all .3s;display:flex;align-items:center;gap:14px}
.stat-card:hover{border-color:var(--border2);transform:translateY(-2px)}
.stat-icon{font-size:1.6rem}.stat-content{flex:1}
.stat-card .label{font-size:.72rem;color:var(--t3);text-transform:uppercase;letter-spacing:.05em;margin-bottom:2px}
.stat-card .value{font-size:1.6rem;font-weight:700;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}

/* CHARTS */
.charts-grid{display:grid;grid-template-columns:2fr 1fr;gap:1rem;margin-bottom:1.5rem}
.chart-card{background:var(--card);border:1px solid var(--border);border-radius:var(--r);padding:1.5rem}
.chart-card h3{font-size:.9rem;color:var(--t2);margin-bottom:1rem;font-weight:500}

/* SECTION HEADER */
.section-header{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:1rem;flex-wrap:wrap}
.section-header h3{color:var(--t2);font-size:1rem;font-weight:600;white-space:nowrap}
.section-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.search-bar{max-width:300px}.search-bar input{width:100%}

/* FOLDER TABS */
.folder-tabs{display:flex;gap:6px;margin-bottom:1rem;flex-wrap:wrap;padding-bottom:8px;border-bottom:1px solid var(--border)}
.folder-tab{padding:6px 14px;border:1px solid var(--border);border-radius:20px;background:transparent;color:var(--t2);
  font-size:.8rem;font-family:inherit;cursor:pointer;transition:all .2s;display:flex;align-items:center;gap:6px}
.folder-tab:hover{background:rgba(255,255,255,0.04);border-color:var(--border2)}
.folder-tab.active{background:rgba(139,92,246,0.12);color:var(--purple);border-color:rgba(139,92,246,0.3)}
.folder-tab[data-folder]:not([data-folder=""])::before{content:'';width:8px;height:8px;border-radius:50%;background:var(--fc,var(--purple))}
.folder-count{font-size:.7rem;opacity:.6}

/* LINKS LIST */
.links-list{display:flex;flex-direction:column;gap:10px;margin-bottom:2rem}
.link-card{background:var(--card);border:1px solid var(--border);border-radius:var(--r);padding:1rem 1.2rem;display:flex;align-items:center;gap:1rem;transition:all .3s;cursor:pointer}
.link-card:hover{border-color:var(--border2);background:rgba(17,17,27,0.9);transform:translateX(4px)}
.link-card-inactive{opacity:.5}
.link-info{flex:1;min-width:0}
.link-slug{font-weight:600;font-size:.95rem;color:var(--cyan);display:flex;align-items:center;gap:8px}
.link-url{font-size:.8rem;color:var(--t3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:2px}
.link-meta{display:flex;gap:12px;margin-top:5px;flex-wrap:wrap}
.link-meta span{font-size:.75rem;color:var(--t2)}
.tag{background:rgba(139,92,246,0.1);color:var(--purple);padding:2px 8px;border-radius:6px;font-size:.72rem}
.tag-folder{background:rgba(var(--fc),0.12);border-left:3px solid var(--fc,var(--purple))}
.badge-paused{font-size:.65rem;background:rgba(239,68,68,0.12);color:var(--red);padding:2px 6px;border-radius:4px;font-weight:500}
.link-clicks{text-align:center;min-width:60px}
.link-clicks .count{font-size:1.3rem;font-weight:700;color:var(--purple)}
.link-clicks .label{font-size:.68rem;color:var(--t3);text-transform:uppercase}
.link-actions{display:flex;gap:4px}

/* DETAIL PAGE */
.detail-header{display:flex;gap:2rem;align-items:flex-start;margin-bottom:1.5rem;flex-wrap:wrap}
.detail-info{flex:1;min-width:280px}
.detail-info h2{font-size:1.4rem;font-weight:700;margin-bottom:4px}
.detail-info .url{color:var(--t2);font-size:.88rem;word-break:break-all}
.detail-info .short-url{font-size:1rem;font-weight:600;color:var(--cyan);margin:10px 0;display:flex;align-items:center;gap:10px}
.detail-side{display:flex;flex-direction:column;align-items:center;gap:12px}
.detail-actions{display:flex;gap:8px;flex-wrap:wrap}
.qr-box{background:#fff;padding:10px;border-radius:var(--r);display:inline-block}.qr-box img{display:block}

/* PERIOD STATS */
.period-stats{display:flex;gap:20px;margin-top:14px}
.period-stat{display:flex;flex-direction:column}
.period-value{font-size:1.3rem;font-weight:700;color:var(--purple)}
.period-label{font-size:.68rem;color:var(--t3);text-transform:uppercase;letter-spacing:.04em}

/* FILTERS BAR */
.filters-bar{display:flex;gap:16px;align-items:center;flex-wrap:wrap;margin-bottom:1.5rem;padding:12px 16px;background:var(--card);border:1px solid var(--border);border-radius:var(--r)}
.period-buttons,.group-buttons{display:flex;gap:4px}
.pbtn,.gbtn{padding:6px 14px;border:1px solid var(--border);border-radius:8px;background:transparent;color:var(--t2);font-size:.8rem;font-family:inherit;cursor:pointer;transition:all .2s}
.pbtn:hover,.gbtn:hover{background:rgba(255,255,255,0.04)}
.pbtn.active{background:rgba(139,92,246,0.12);color:var(--purple);border-color:rgba(139,92,246,0.3)}
.gbtn.active{background:rgba(6,182,212,0.12);color:var(--cyan);border-color:rgba(6,182,212,0.3)}
.date-range{display:flex;gap:8px;align-items:center;margin-left:auto}
.date-range input{width:140px;padding:6px 10px;font-size:.82rem}
.date-range span{color:var(--t3);font-size:.85rem}

/* BREAKDOWNS */
.breakdown-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1rem;margin-bottom:1.5rem}
.breakdown-card{background:var(--card);border:1px solid var(--border);border-radius:var(--r);padding:1.5rem}
.breakdown-card h3{font-size:.9rem;color:var(--t2);margin-bottom:1rem;font-weight:500}
.breakdown-item{padding:5px 0}
.breakdown-label{display:flex;justify-content:space-between;align-items:center;margin-bottom:3px}
.breakdown-label .name{font-size:.82rem;color:var(--t1)}.breakdown-label .count{font-size:.82rem;color:var(--purple);font-weight:600}
.breakdown-bar{height:3px;background:rgba(255,255,255,0.04);border-radius:2px;overflow:hidden}
.breakdown-bar-fill{height:100%;background:var(--grad2);border-radius:2px;transition:width .6s}

/* TABLE */
.table-wrap{overflow-x:auto;background:var(--card);border:1px solid var(--border);border-radius:var(--r)}
table{width:100%;border-collapse:collapse;font-size:.8rem}
th{text-align:left;padding:10px 14px;color:var(--t3);font-weight:500;text-transform:uppercase;font-size:.7rem;letter-spacing:.05em;border-bottom:1px solid var(--border)}
td{padding:8px 14px;color:var(--t2);border-bottom:1px solid var(--border)}
tr:last-child td{border-bottom:none}tr:hover td{background:rgba(255,255,255,0.02)}
.tag-link{background:rgba(6,182,212,0.1);color:var(--cyan);padding:2px 8px;border-radius:6px;font-size:.75rem;font-weight:500}

/* MODAL */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.6);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:200;opacity:0;pointer-events:none;transition:opacity .3s}
.modal-overlay.show{opacity:1;pointer-events:auto}
.modal{background:#11111b;border:1px solid var(--border);border-radius:var(--r2);padding:2rem;width:90%;max-width:480px;max-height:90vh;overflow-y:auto;animation:slideUp .3s}
.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}
.modal-header h3{font-size:1.1rem;font-weight:600}
.modal-close{background:none;border:none;color:var(--t2);font-size:1.5rem;cursor:pointer;padding:4px 8px;border-radius:8px;transition:background .2s}
.modal-close:hover{background:rgba(255,255,255,0.06)}
.modal label{display:block;font-size:.82rem;color:var(--t2);margin-bottom:4px;margin-top:12px}
.modal input,.modal select{margin-bottom:4px}
.modal-row{display:flex;align-items:center;gap:8px;margin-top:12px}
.toggle-label{font-size:.85rem;color:var(--t2);display:flex;align-items:center;gap:8px;cursor:pointer}
.toggle-label input[type="checkbox"]{width:18px;height:18px;accent-color:var(--purple)}
.modal-actions{display:flex;justify-content:space-between;margin-top:1.5rem;gap:10px}

/* FOLDERS MODAL */
.folder-create{display:flex;gap:8px;margin-bottom:1.5rem;align-items:center}
.folder-create input[type="text"]{flex:1}
.color-input{width:40px;height:40px;border:none;border-radius:8px;cursor:pointer;background:transparent;padding:0}
.folders-list{display:flex;flex-direction:column;gap:8px}
.folder-item{display:flex;align-items:center;gap:10px;padding:10px;border:1px solid var(--border);border-radius:8px}
.folder-dot{width:12px;height:12px;border-radius:50%;flex-shrink:0}
.folder-name{flex:1;font-weight:500;font-size:.9rem}
.folder-lcount{font-size:.75rem;color:var(--t3)}

/* LOGIN */
.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem}
.login-card{max-width:400px;width:100%;background:var(--card);backdrop-filter:blur(20px);border:1px solid var(--border);border-radius:var(--r2);padding:2rem;box-shadow:var(--glow)}
.login-card h2{font-size:1.4rem;margin-bottom:.5rem;text-align:center}
.login-card p{color:var(--t3);text-align:center;margin-bottom:1.5rem;font-size:.9rem}
.error-msg{color:var(--red);font-size:.85rem;margin-top:8px;display:none}.error-msg.show{display:block}

/* EMPTY / SPINNER / BACK / TOAST */
.empty-state{text-align:center;padding:3rem 2rem;color:var(--t3)}.empty-state .icon{font-size:3rem;margin-bottom:1rem}
.spinner{width:24px;height:24px;border:2px solid var(--border);border-top-color:var(--purple);border-radius:50%;animation:spin .6s linear infinite}
.back-link{display:inline-flex;align-items:center;gap:6px;color:var(--t2);font-size:.85rem;margin-bottom:1.5rem;text-decoration:none}
.back-link:hover{color:var(--t1);text-decoration:none}
.toast{position:fixed;bottom:2rem;right:2rem;padding:14px 24px;background:var(--green);color:#fff;border-radius:var(--r);font-weight:500;font-size:.9rem;transform:translateY(100px);opacity:0;transition:all .4s cubic-bezier(.16,1,.3,1);z-index:9999}
.toast.show{transform:translateY(0);opacity:1}.toast.error{background:var(--red)}

/* ANIMATIONS */
@keyframes slideUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}.fade-in{animation:fadeIn .5s}

/* RESPONSIVE */
@media(max-width:900px){.stats-grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.page{padding:1rem}.navbar{padding:.8rem 1rem}.charts-grid{grid-template-columns:1fr}.detail-header{flex-direction:column}
  .link-card{flex-direction:column;align-items:flex-start}.link-actions{width:100%;justify-content:flex-end}.stat-card .value{font-size:1.3rem}
  .filters-bar{flex-direction:column;gap:10px}.date-range{margin-left:0;width:100%}.date-range input{flex:1}
  .create-row,.create-options{flex-direction:column}.period-stats{flex-wrap:wrap;gap:12px}}