:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --bg: #f1f5f9;
    --surface: #ffffff;
    --text: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --success: #10b981;
    --success-bg: #d1fae5;
    --warning: #f59e0b;
    --warning-bg: #fef3c7;
    --danger: #ef4444;
    --danger-bg: #fee2e2;
    --info-bg: #dbeafe;
    --radius: 10px;
    --radius-lg: 14px;
    --shadow: 0 1px 3px rgba(0,0,0,0.08);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; }
body { font-family: 'Inter', -apple-system, sans-serif; background: var(--bg); color: var(--text); font-size: 15px; line-height: 1.5; -webkit-font-smoothing: antialiased; }

.hidden { display: none !important; }
.screen { min-height: 100vh; }

/* Login */
#login-screen {
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, #0f172a, #1e293b); padding: 1rem;
}
.login-card { background: var(--surface); border-radius: var(--radius-lg); padding: 2.5rem; width: 100%; max-width: 380px; }
.login-logo { text-align: center; margin-bottom: 2rem; }
.logo-icon {
    display: inline-flex; align-items: center; justify-content: center;
    width: 52px; height: 52px; background: var(--primary); color: white;
    border-radius: var(--radius); font-weight: 700; font-size: 1.125rem; margin-bottom: 0.75rem;
}
.login-logo h1 { font-size: 1.375rem; }
.login-logo p { color: var(--text-muted); font-size: 0.875rem; }
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; font-weight: 500; margin-bottom: 0.25rem; font-size: 0.875rem; }
.form-group input {
    width: 100%; padding: 0.75rem; border: 1.5px solid var(--border);
    border-radius: var(--radius); font-size: 1rem; font-family: inherit;
}
.form-group input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,0.1); }
.alert { padding: 0.75rem; border-radius: var(--radius); font-size: 0.875rem; margin-bottom: 1rem; background: var(--danger-bg); color: var(--danger); }

.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
    padding: 0.75rem 1.25rem; border: none; border-radius: var(--radius);
    font-size: 0.9375rem; font-weight: 600; font-family: inherit; cursor: pointer;
}
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-success { background: var(--success); color: white; }
.btn-warning { background: var(--warning); color: white; }
.btn-danger { background: var(--danger); color: white; }
.btn-outline { background: var(--surface); color: var(--text); border: 1.5px solid var(--border); }
.btn-full { width: 100%; }
.btn-sm { padding: 0.5rem 0.875rem; font-size: 0.8125rem; }

/* Header */
.driver-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 1rem 1.25rem; background: #0f172a; color: white;
    position: sticky; top: 0; z-index: 100;
}
.driver-info { display: flex; align-items: center; gap: 0.75rem; }
.logo-icon-sm {
    width: 36px; height: 36px; background: var(--primary); border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 0.75rem; color: white;
}
.driver-info strong { display: block; font-size: 0.9375rem; }
.driver-info small { color: rgba(255,255,255,0.5); font-size: 0.75rem; }
.btn-icon { background: none; border: none; color: rgba(255,255,255,0.6); cursor: pointer; padding: 0.5rem; border-radius: 8px; }
.btn-icon:hover { color: white; background: rgba(255,255,255,0.1); }

/* Content */
.driver-content { max-width: 600px; margin: 0 auto; padding: 1.25rem; }
.day-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1rem; }
.day-header h2 { font-size: 1.125rem; }
.date-badge { font-size: 0.8125rem; color: var(--text-muted); background: var(--surface); padding: 0.25rem 0.75rem; border-radius: 999px; border: 1px solid var(--border); }

/* Delivery Cards */
.delivery-list { display: flex; flex-direction: column; gap: 0.875rem; }
.delivery-card {
    background: var(--surface); border-radius: var(--radius-lg); padding: 1.25rem;
    box-shadow: var(--shadow); border: 1px solid var(--border);
    border-left: 4px solid var(--border); transition: all 0.15s;
}
.delivery-card.status-scheduled { border-left-color: var(--primary); }
.delivery-card.status-en_route { border-left-color: var(--warning); }
.delivery-card.status-arrived { border-left-color: #8b5cf6; }
.delivery-card.status-delivered { border-left-color: var(--success); opacity: 0.6; }
.delivery-card.status-failed { border-left-color: var(--danger); opacity: 0.6; }

.delivery-top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 0.75rem; }
.delivery-num { font-size: 0.75rem; font-weight: 700; color: var(--primary); background: var(--info-bg); padding: 0.125rem 0.5rem; border-radius: 4px; }
.delivery-badge { font-size: 0.6875rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; padding: 0.25rem 0.625rem; border-radius: 999px; }
.delivery-badge.scheduled { background: var(--info-bg); color: var(--primary); }
.delivery-badge.en_route { background: var(--warning-bg); color: #92400e; }
.delivery-badge.arrived { background: #ede9fe; color: #5b21b6; }
.delivery-badge.delivered { background: var(--success-bg); color: #065f46; }
.delivery-badge.failed { background: var(--danger-bg); color: #991b1b; }

.delivery-customer { font-weight: 600; font-size: 1rem; margin-bottom: 0.25rem; }
.delivery-address { color: var(--text-muted); font-size: 0.875rem; margin-bottom: 0.5rem; }
.delivery-notes { font-size: 0.8125rem; padding: 0.5rem 0.75rem; background: #fffbeb; border-radius: 6px; margin-bottom: 0.75rem; border: 1px solid #fde68a; }
.delivery-phone { display: inline-flex; align-items: center; gap: 0.375rem; color: var(--primary); text-decoration: none; font-size: 0.875rem; font-weight: 500; margin-bottom: 0.75rem; }
.delivery-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.delivery-actions .btn { flex: 1; min-width: 0; }

.loading, .empty-state { text-align: center; padding: 3rem 1rem; color: var(--text-muted); }
.empty-state h3 { font-size: 1rem; color: var(--text); margin-bottom: 0.25rem; }