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

:root {
    --ink: #0a0f1a;
    --slate: #1a2035;
    --steel: #2a3550;
    --mist: #8893a7;
    --cloud: #c4cdd9;
    --white: #f0f2f5;
    --signal: #3b82f6;
    --signal-glow: #60a5fa;
    --warm: #f59e0b;
    --green: #22c55e;
    --red: #ef4444;
}

body {
    font-family: 'DM Sans', sans-serif;
    background: var(--ink);
    color: var(--cloud);
    line-height: 1.6;
    min-height: 100vh;
}

h1, h2, h3, h4 {
    font-family: 'Space Grotesk', sans-serif;
    color: var(--white);
    line-height: 1.15;
}

/* NAV */
.app-nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    padding: 0.75rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(10, 15, 26, 0.92);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(59, 130, 246, 0.08);
}

.logo {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--white);
    letter-spacing: -0.5px;
    text-decoration: none;
}
.logo span { color: var(--signal); }

.nav-links {
    display: flex;
    gap: 0.25rem;
}

.nav-link {
    color: var(--mist);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
    transition: all 0.2s;
}
.nav-link:hover { color: var(--white); background: rgba(255,255,255,0.04); }
.nav-link.active { color: var(--signal-glow); background: rgba(59, 130, 246, 0.1); }

/* MAIN */
main {
    max-width: 1100px;
    margin: 0 auto;
    padding: 5rem 2rem 3rem;
}

/* LOADING */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem;
    color: var(--mist);
}

.spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--steel);
    border-top-color: var(--signal);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: 1rem;
}

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

/* CARDS */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: linear-gradient(135deg, var(--slate) 0%, rgba(26, 32, 53, 0.6) 100%);
    border: 1px solid var(--steel);
    border-radius: 12px;
    padding: 1.5rem;
}

.stat-card .stat-value {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--white);
}

.stat-card .stat-label {
    font-size: 0.8rem;
    color: var(--mist);
    margin-top: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* PAGE HEADER */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 1.8rem;
    letter-spacing: -0.5px;
}

/* BUTTONS */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.65rem 1.25rem;
    border: none;
    border-radius: 8px;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    letter-spacing: -0.2px;
}

.btn-primary {
    background: var(--signal);
    color: #fff;
}
.btn-primary:hover { background: var(--signal-glow); transform: translateY(-1px); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.btn-secondary {
    background: var(--steel);
    color: var(--cloud);
}
.btn-secondary:hover { background: #354060; }

.btn-ghost {
    background: transparent;
    color: var(--mist);
    border: 1px solid var(--steel);
}
.btn-ghost:hover { border-color: var(--mist); color: var(--white); }

.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); }

.btn-sm {
    padding: 0.4rem 0.85rem;
    font-size: 0.8rem;
}

.btn-success {
    background: rgba(34, 197, 94, 0.15);
    color: var(--green);
    border: 1px solid rgba(34, 197, 94, 0.2);
}
.btn-success:hover { background: rgba(34, 197, 94, 0.25); }

/* TABLE */
.table-wrap {
    background: var(--slate);
    border: 1px solid var(--steel);
    border-radius: 12px;
    overflow: hidden;
}

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

th {
    text-align: left;
    padding: 0.85rem 1.25rem;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--mist);
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 1px solid var(--steel);
    background: rgba(0,0,0,0.15);
}

td {
    padding: 0.85rem 1.25rem;
    font-size: 0.9rem;
    border-bottom: 1px solid rgba(42, 53, 80, 0.5);
}

tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(255,255,255,0.02); }

/* BADGES */
.badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.badge-new {
    background: rgba(59, 130, 246, 0.15);
    color: var(--signal-glow);
}
.badge-contacted {
    background: rgba(245, 158, 11, 0.15);
    color: var(--warm);
}
.badge-qualified {
    background: rgba(34, 197, 94, 0.15);
    color: var(--green);
}
.badge-lost {
    background: rgba(239, 68, 68, 0.1);
    color: var(--red);
}
.badge-draft {
    background: rgba(136, 147, 167, 0.15);
    color: var(--mist);
}
.badge-sent {
    background: rgba(59, 130, 246, 0.15);
    color: var(--signal-glow);
}
.badge-active {
    background: rgba(34, 197, 94, 0.15);
    color: var(--green);
}

/* FIT SCORE */
.fit-score {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 0.85rem;
}
.fit-high { color: var(--green); }
.fit-mid { color: var(--warm); }
.fit-low { color: var(--red); }

/* FORMS */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--cloud);
    margin-bottom: 0.4rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.7rem 1rem;
    background: var(--ink);
    border: 1px solid var(--steel);
    border-radius: 8px;
    color: var(--white);
    font-family: 'DM Sans', sans-serif;
    font-size: 0.95rem;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--signal);
}

.form-group textarea {
    min-height: 100px;
    resize: vertical;
}

.form-hint {
    font-size: 0.78rem;
    color: var(--mist);
    margin-top: 0.3rem;
}

/* MODAL */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.modal {
    background: var(--slate);
    border: 1px solid var(--steel);
    border-radius: 16px;
    padding: 2rem;
    max-width: 560px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
}

.modal h2 {
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
    letter-spacing: -0.3px;
}

.modal-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
    margin-top: 1.5rem;
}

/* EMAIL PREVIEW */
.email-preview {
    background: var(--ink);
    border: 1px solid var(--steel);
    border-radius: 10px;
    padding: 1.5rem;
    margin: 1rem 0;
}

.email-preview .email-subject {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--white);
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--steel);
}

.email-preview .email-body {
    font-size: 0.92rem;
    line-height: 1.7;
    color: var(--cloud);
    white-space: pre-wrap;
}

/* DETAIL SECTION */
.detail-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.back-btn {
    color: var(--mist);
    text-decoration: none;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    transition: color 0.2s;
}
.back-btn:hover { color: var(--white); }

.detail-meta {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
    padding: 1.25rem;
    background: var(--slate);
    border: 1px solid var(--steel);
    border-radius: 12px;
}

.meta-item {
    display: flex;
    flex-direction: column;
}

.meta-item .meta-label {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--mist);
    margin-bottom: 0.2rem;
}

.meta-item .meta-value {
    font-size: 0.95rem;
    color: var(--white);
}

/* SECTION TITLE */
.section-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 2rem 0 1rem;
}

.section-title h2 {
    font-size: 1.2rem;
}

/* EMPTY STATE */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--mist);
}

.empty-state h3 {
    color: var(--cloud);
    margin-bottom: 0.5rem;
}

.empty-state p {
    margin-bottom: 1.5rem;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

/* LEAD CARD (for campaign detail) */
.lead-card {
    background: var(--slate);
    border: 1px solid var(--steel);
    border-radius: 12px;
    padding: 1.25rem 1.5rem;
    margin-bottom: 0.75rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: border-color 0.2s;
    cursor: pointer;
}

.lead-card:hover {
    border-color: var(--signal);
}

.lead-card-info h3 {
    font-size: 1rem;
    margin-bottom: 0.15rem;
}

.lead-card-info p {
    font-size: 0.83rem;
    color: var(--mist);
}

.lead-card-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* TOAST */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--slate);
    border: 1px solid var(--signal);
    color: var(--white);
    padding: 0.85rem 1.5rem;
    border-radius: 10px;
    font-size: 0.9rem;
    z-index: 300;
    animation: slideUp 0.3s ease;
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}

.toast-error {
    border-color: var(--red);
}

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

/* RESPONSIVE */
@media (max-width: 768px) {
    .app-nav { padding: 0.75rem 1rem; }
    main { padding: 4.5rem 1rem 2rem; }
    .stat-grid { grid-template-columns: repeat(2, 1fr); }
    .page-header { flex-direction: column; align-items: flex-start; gap: 1rem; }
    .detail-meta { gap: 1rem; }
    .lead-card { flex-direction: column; align-items: flex-start; gap: 0.75rem; }
    .modal { margin: 1rem; padding: 1.5rem; }
    .nav-link { padding: 0.5rem 0.65rem; font-size: 0.82rem; }
}

@media (max-width: 480px) {
    .stat-grid { grid-template-columns: 1fr; }
}