* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg: #0f1117; --surface: #1a1d27; --surface2: #242834; --border: #2e3345;
  --text: #e4e6ed; --text-dim: #8b8fa3; --accent: #6c7cff; --accent-hover: #8490ff;
  --green: #34d399; --yellow: #fbbf24; --red: #f87171;
  --green-bg: rgba(52,211,153,0.12); --yellow-bg: rgba(251,191,36,0.12); --red-bg: rgba(248,113,113,0.12);
}

body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif; background: var(--bg); color: var(--text); min-height: 100vh; }

/* Login */
.login-screen { display: flex; justify-content: center; align-items: center; min-height: 100vh; }
.login-box { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 40px; text-align: center; width: 340px; }
.login-box h1 { font-size: 22px; margin-bottom: 24px; }
.login-box input { display: block; width: 100%; background: var(--surface2); border: 1px solid var(--border); border-radius: 8px; padding: 10px 14px; color: var(--text); font-size: 14px; margin-bottom: 12px; outline: none; }
.login-box input:focus { border-color: var(--accent); }
.login-box input::placeholder { color: var(--text-dim); }
.login-box button { width: 100%; padding: 10px; background: var(--accent); color: #fff; border: none; border-radius: 8px; font-size: 14px; font-weight: 600; cursor: pointer; }
.login-box button:hover { background: var(--accent-hover); }
.login-error { color: var(--red); font-size: 13px; margin-top: 8px; }

/* Header */
.header { padding: 20px 28px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
.header h1 { font-size: 22px; font-weight: 700; letter-spacing: -0.5px; }
.header h1 span { color: var(--accent); }
.stats { display: flex; gap: 24px; font-size: 14px; }
.stat-label { color: var(--text-dim); margin-right: 6px; }
.stat-value { font-weight: 600; }
.stat-green { color: var(--green); }
.stat-red { color: var(--red); }
.search-bar { display: flex; align-items: center; gap: 8px; }
.search-bar input { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 8px 14px; color: var(--text); font-size: 14px; width: 220px; outline: none; }
.search-bar input:focus { border-color: var(--accent); }
.search-bar input::placeholder { color: var(--text-dim); }

/* Board */
.board { display: flex; gap: 16px; padding: 20px 28px; overflow-x: auto; min-height: calc(100vh - 80px); align-items: flex-start; }
.column { min-width: 230px; max-width: 230px; flex-shrink: 0; }
.column.collapsed .cards { display: none; }
.column.collapsed .column-header { opacity: 0.6; }
.column-header { display: flex; align-items: center; justify-content: space-between; padding: 10px 14px; margin-bottom: 10px; border-radius: 10px; background: var(--surface); border: 1px solid var(--border); cursor: pointer; user-select: none; }
.column-title { font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }
.column-count { background: var(--surface2); border-radius: 10px; padding: 2px 9px; font-size: 12px; font-weight: 600; color: var(--text-dim); }
.collapse-btn { background: none; border: none; color: var(--text-dim); cursor: pointer; font-size: 14px; padding: 2px 4px; margin-left: 6px; }
.cards { display: flex; flex-direction: column; gap: 10px; }

/* Cards */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 14px; cursor: pointer; transition: border-color 0.15s, transform 0.1s; border-left: 3px solid transparent; }
.card:hover { border-color: var(--accent); transform: translateY(-1px); }
.card.payment-paid { border-left-color: var(--green); }
.card.payment-partial { border-left-color: var(--yellow); }
.card.payment-unpaid { border-left-color: var(--red); }
.card-company { font-weight: 700; font-size: 15px; margin-bottom: 4px; }
.card-title { font-size: 13px; color: var(--text-dim); margin-bottom: 10px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.card-meta { display: flex; align-items: center; justify-content: space-between; font-size: 12px; }
.card-fee { font-weight: 700; font-size: 14px; }
.card-badges { display: flex; gap: 6px; align-items: center; }
.badge { padding: 2px 8px; border-radius: 6px; font-size: 11px; font-weight: 600; }
.badge-paid { background: var(--green-bg); color: var(--green); }
.badge-partial { background: var(--yellow-bg); color: var(--yellow); }
.badge-unpaid { background: var(--red-bg); color: var(--red); }
.badge-channel { background: var(--surface2); color: var(--text-dim); }
.card-deadline { font-size: 11px; color: var(--text-dim); margin-top: 8px; }
.card-contact-icon { font-size: 13px; margin-left: 4px; }

/* Drag & Drop */
.card[draggable="true"] { cursor: grab; }
.card.dragging { opacity: 0.4; cursor: grabbing; }
.drop-zone.drag-active { border: 2px dashed var(--border); border-radius: 10px; min-height: 80px; padding: 4px; margin: -4px; transition: border-color 0.15s, background 0.15s; }
.drop-zone.drag-over { border-color: var(--accent); background: rgba(108,124,255,0.06); }

/* Add card button */
.add-card-btn { background: none; border: 1px dashed var(--border); border-radius: 10px; padding: 10px; color: var(--text-dim); font-size: 13px; cursor: pointer; transition: border-color 0.15s, color 0.15s; }
.add-card-btn:hover { border-color: var(--accent); color: var(--accent); }

/* Modal */
.modal-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.6); z-index: 100; justify-content: center; align-items: flex-start; padding-top: 40px; overflow-y: auto; }
.modal-overlay.open { display: flex; }
.modal { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; width: 600px; max-width: 95vw; padding: 28px; position: relative; margin-bottom: 60px; }
.modal-close { position: absolute; top: 16px; right: 16px; background: none; border: none; color: var(--text-dim); font-size: 22px; cursor: pointer; }
.modal h2 { font-size: 20px; margin-bottom: 20px; }
.modal-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.modal-field { display: flex; flex-direction: column; }
.field-label { font-size: 11px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.4px; margin-bottom: 4px; }
.modal-input, .modal-textarea { background: var(--surface2); border: 1px solid var(--border); border-radius: 8px; padding: 8px 12px; color: var(--text); font-size: 14px; outline: none; font-family: inherit; width: 100%; }
.modal-input:focus, .modal-textarea:focus { border-color: var(--accent); }
.modal-textarea { resize: vertical; }
.modal-section { margin-top: 8px; }
.modal-actions { display: flex; justify-content: space-between; align-items: center; margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--border); }
.modal-actions div { display: flex; gap: 8px; }

/* Buttons */
.btn { padding: 8px 16px; border-radius: 8px; font-size: 14px; font-weight: 600; cursor: pointer; border: none; transition: background 0.15s; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary { background: var(--surface2); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { border-color: var(--accent); }
.btn-danger { background: var(--red-bg); color: var(--red); }
.btn-danger:hover { background: rgba(248,113,113,0.25); }
.btn-sm { padding: 5px 12px; font-size: 12px; }

/* Toast */
.toast { position: fixed; bottom: 24px; right: 24px; padding: 10px 20px; border-radius: 8px; font-size: 14px; font-weight: 500; opacity: 0; transition: opacity 0.3s; pointer-events: none; z-index: 200; }
.toast.show { opacity: 1; }
.toast-success { background: var(--green-bg); color: var(--green); border: 1px solid var(--green); }
.toast-error { background: var(--red-bg); color: var(--red); border: 1px solid var(--red); }
.toast-warn { background: var(--yellow-bg); color: var(--yellow); border: 1px solid var(--yellow); }
.toast-info { background: var(--surface2); color: var(--text-dim); border: 1px solid var(--border); }